International Journal of Vascular Medicine https://www.hindawi.com The latest articles from Hindawi © 2017 , Hindawi Limited . All rights reserved. Impact of Modified Transesophageal Echocardiography on Mortality and Stroke after Cardiac Surgery: A Large Cohort Study Mon, 11 Sep 2017 09:29:51 +0000 http://www.hindawi.com/journals/ijvm/2017/1857069/ The aim of this study was to investigate the impact of perioperative screening with modified transesophageal echocardiography (A-View method). We compared, in consecutive patients who underwent cardiac surgery between 2006 and 2014, 30-day mortality and in-hospital stroke incidence, operated either with perioperative modified TEE screening (intervention group) or only with conventional TEE screening (control group). Of the 8,605 study patients, modified TEE was applied in 1,391 patients (16.2%). Patients in the intervention group were on average older (71 versus 68 years, ) and more often females (31.0% versus 28.0%, ) and had a higher predicted mortality (EuroSCORE I: 5.9% versus 4.0%, ). The observed 30-day mortality was 2.2% and 2.5% in both groups, respectively, with multivariable and propensity-score adjusted relative risks (RRs) of 0.70 (95% CI: 0.50–1.00, ) and 0.67 (95% CI: 0.45–0.98, ). In-hospital stroke was 2.9% and 2.1% in both groups, respectively, with adjusted RRs of 1.03 (95% CI: 0.73–1.45) and 1.01 (95% CI: 0.71–1.43). In patients undergoing cardiac surgery, use of perioperative screening for aortic atherosclerosis with modified TEE was associated with lower postoperative mortality, but not stroke, as compared to patients operated on without such screening. Wouter W. Jansen Klomp, Carl G. M. Moons, Arno P. Nierich, George J. Brandon Bravo Bruinsma, Arnoud W. J. van’t Hof, Jan G. Grandjean, and Linda M. Peelen Copyright © 2017 Wouter W. Jansen Klomp et al. All rights reserved. A Simple Blood Test, Such as Complete Blood Count, Can Predict Calcification Grade of Abdominal Aortic Aneurysm Wed, 30 Aug 2017 07:44:17 +0000 http://www.hindawi.com/journals/ijvm/2017/1370751/ Objective. The pathogenesis of abdominal aortic aneurysm (AAA) is complex and different factors, including calcification, are linked to increased complications. This study was conducted in order to verify if classical risk factors for AAA and cell blood count parameter could help in the identification of calcification progression of the aneurysm. Design. Risk factors were collected and cell blood count was performed in patients with AAA and patients were analyzed for the presence of aorta calcification using CT angiography. Results. We found no association of calcification grade with risk factors for AAA but we found a strong association between MCV, MCH, and calcification grade. Instead, no association was found with the other parameter that we analyzed. Conclusions. In this study, we demonstrate that biomarkers such as MCV and MCH could have potential important information about AAA calcification progression and could be useful to discriminate between those patients that should undergo a rapid imaging, thus allowing prompt initiation of treatment of suspicious patients that do not need imaging repetition. Marika Vezzoli, Stefano Bonardelli, Michele Peroni, Marco Ravanelli, and Emirena Garrafa Copyright © 2017 Marika Vezzoli et al. All rights reserved. The Role of Endoplasmic Reticulum Stress in Cardiovascular Disease and Exercise Thu, 10 Aug 2017 08:59:33 +0000 http://www.hindawi.com/journals/ijvm/2017/2049217/ Endoplasmic reticulum (ER) stress, which is highly associated with cardiovascular disease, is triggered by a disturbance in ER function because of protein misfolding or an increase in protein secretion. Prolonged disruption of ER causes ER stress and activation of the unfolded protein response (UPR) and leads to various diseases. Eukaryotic cells respond to ER stress via three major sensors that are bound to the ER membrane: activating transcription factor 6 (ATF6), inositol-requiring protein 1α (IRE1α), and protein kinase RNA-like ER kinase (PERK). Chronic activation of ER stress causes damage in endothelial cells (EC) via apoptosis, inflammation, and oxidative stress signaling pathways. The alleviation of ER stress has recently been accepted as a potential therapeutic target to treat cardiovascular diseases such as heart failure, hypertension, and atherosclerosis. Exercise training is an effective nonpharmacological approach for preventing and alleviating cardiovascular disease. We here review the recent viewing of ER stress-mediated apoptosis and inflammation signaling pathways in cardiovascular disease and the role of exercise in ER stress-associated diseases. Junyoung Hong, Kwangchan Kim, Jong-Hee Kim, and Yoonjung Park Copyright © 2017 Junyoung Hong et al. All rights reserved. A Protocol for Diagnosis and Management of Aortic Atherosclerosis in Cardiac Surgery Patients Wed, 09 Aug 2017 00:00:00 +0000 http://www.hindawi.com/journals/ijvm/2017/1874395/ In patients undergoing cardiac surgery, use of perioperative screening for aortic atherosclerosis with modified TEE (A-View method) was associated with lower postoperative mortality, but not stroke, as compared to patients operated on without such screening. At the time of clinical implementation and validation, we did not yet standardize the indications for modified TEE and the changes in patient management in the presence of aortic atherosclerosis. Therefore, we designed a protocol, which combined the diagnosis of atherosclerosis of thoracic aorta and the subsequent considerations with respect to the intraoperative management and provides a systematic approach to reduce the risk of cerebral complications. Wouter W. Jansen Klomp, George J. Brandon Bravo Bruinsma, Arnoud W. J. Van ’t Hof, Jan G. Grandjean, and Arno P. Nierich Copyright © 2017 Wouter W. Jansen Klomp et al. All rights reserved. Maintenance of the Results of Stage II Lower Limb Lymphedema Treatment after Normalization of Leg Size Tue, 01 Aug 2017 09:31:29 +0000 http://www.hindawi.com/journals/ijvm/2017/8515767/ Objective. The aim of this study was to identify strategies to transfer responsibility of the maintenance of the results of lymphedema treatment to the patient. Methods. Maintenance of the reduction of edema was evaluated in a prospective clinical trial in patients with Stage II leg lymphedema. Twenty-one lymphedematous lower limbs were evaluated in Clínica Godoy in 2014 and 2016. The evaluation was done by volumetry at baseline and weekly thereafter for volume control. Patients wore Venosan® cotton 20/30 and 30/40 mmHg elastic compression stockings followed by a custom-made inelastic stocking made of grosgrain fabric. The Friedman test for multiple comparisons and Conover post hoc test were used for statistical analysis with an alpha error of 5%. Results. On comparing leg volume changes using the different types of stockings, the 20/30 mmHg elastic compression stockings failed in the first week to maintain the volume reductions but the 30/40 mmHg compression stockings did not allow significant increases in volume (p value > 0.05). During one week, the grosgrain stocking reduced leg volumes to baseline values (p value = 0.24). Conclusion. Higher compression of elastic stockings is better than lower compression but the inelastic grosgrain stocking is even better than both to maintain the results. Jose Maria Pereira de Godoy, Henrique Jose Pereira de Godoy, Renata Lopes Pinto, Fernando Nestor Facio Jr., and Maria de Fatima Guerreiro Godoy Copyright © 2017 Jose Maria Pereira de Godoy et al. All rights reserved. ABO Gene Polymorphism and Thrombomodulin −33G>A Polymorphism Were Not Risk Factors for Myocardial Infarction in Javanese Men Mon, 24 Jul 2017 07:12:54 +0000 http://www.hindawi.com/journals/ijvm/2017/2943467/ Genetic factors contribute to about a half of coronary artery diseases. During the last several decades, some studies suggested that non-O blood group and thrombomodulin polymorphism −33G>A are the risk factors of coronary artery disease especially in Asia. There was no prior study in Indonesia regarding this issue. Hence, this study was designed to investigate the correlation of ABO polymorphism and thrombomodulin polymorphism −33G>A with the incidence of acute myocardial infarction (AMI). A total of 192 subjects were enrolled in this case control study. AMI patients were diagnosed based on World Health Organization criteria. Healthy patients were subjects with AMI risk factor without any sign and symptoms of AMI. Patients with diabetes mellitus, cancer, and arrhythmia were excluded from this study. Genotyping for both polymorphisms was performed by PCR RFLP methods. The result of this study suggested that ABO polymorphism and thrombomodulin polymorphism −33G>A were not risk factors of AMI, and , respectively. Furthermore, the analysis to identify the synergy of these polymorphisms failed to prove their correlation with AMI . Conclusively, this study showed that ABO polymorphism and thrombomodulin polymorphism −33G>A were not risk factors of AMI. Mifetika Lukitasari, Ahmad Hamim Sadewa, and Mohammad Saifur Rohman Copyright © 2017 Mifetika Lukitasari et al. All rights reserved. Polygamy and Risk of Coronary Artery Disease in Men Undergoing Angiography: An Observational Study Mon, 30 Jan 2017 07:45:36 +0000 http://www.hindawi.com/journals/ijvm/2017/1925176/ Epidemiologic evidence suggests a link between psychosocial risk factors such as marital status and coronary artery disease (CAD). Polygamy (multiple concurrent wives) is a distinct marital status practiced in many countries in Asia and the Middle East, but its association with CAD is not well defined. We conducted a multicenter, observational study of consecutive patients undergoing coronary angiography during the period from April 1, 2013, to March 30, 2014. Of 1,068 enrolled patients, 687 were married men. Polygamy was reported in 32% of married men (1 wife: 68%, 2 wives: 19%, 3 wives: 10%, and 4 wives: 3%). When stratified by number of wives, significant baseline differences were observed in age, type of community (rural versus urban), prior coronary artery bypass grafting (CABG), and household income. After adjusting for baseline differences, there was a significant association between polygamy and CAD (adjusted OR 4.6 [95% CI 2.5, 8.3]), multivessel disease (MVD) (adjusted OR 2.6 [95% CI 1.8, 3.7]), and left main disease (LMD) (adjusted OR 3.5 [95% CI 2.1, 5.9]). Findings were consistent when the number of wives was analyzed as a continuous variable. In conclusion, among married men undergoing coronary angiography for clinical indications, polygamy is associated with the presence of significant CAD, MVD, and LMD. Amin Daoulah, Amir Lotfi, Mushabab Al-Murayeh, Salem Al-kaabi, Salem M. Al-Faifi, Osama E. Elkhateeb, Mohamed N. Alama, Ahmad S. Hersi, Ciaran M. Dixon, Waleed Ahmed, Mohamed Al-Shehri, Ali Youssef, Ahmed Moustafa Elimam, Ayman S. Abougalambou, Waheed Murad, and Alawi A. Alsheikh-Ali Copyright © 2017 Amin Daoulah et al. All rights reserved. Dyslipidemia in Patients with a Cardiovascular Risk and Disease at the University Teaching Hospital of Yaoundé, Cameroon Mon, 09 Jan 2017 12:22:52 +0000 http://www.hindawi.com/journals/ijvm/2017/6061306/ Objective. To determine the frequency of lipid abnormalities in patients with a cardiovascular risk and disease at the University Teaching Hospital (UTH) of Yaoundé. Materials and Methods. We conducted a cross-sectional study from 1 March to 31 May 2015 at the UTH of Yaoundé. We included all patients seen in the outpatient department with a diagnosis of a cardiovascular disease or a risk factor for cardiovascular disease. Patients who accepted to participate in the study were asked to answer a questionnaire; after that a blood sample was taken for lipid profile. An informed consent was signed by all the participants and the study has received approval from the national ethic committee. Results. We recruited 264 patients of which 119 were men and 145 were women with a sex ratio of 0.82. Mean age was 61.36 years. The frequency of lipid profiles abnormalities was as follows: low HDL cholesterol (44.3%), hypertriglyceridemia (18.9%), high LDL cholesterol (3.8%), and high total cholesterol 3.4%). Hypertriglyceridemia was strongly associated with type 2 diabetes mellitus. Conclusion. Low levels of HDL cholesterol and hypertriglyceridemia are more prevalent in our study population. More studies are needed to confirm this finding in our environment. Vicky Jocelyne Ama Moor, Sylvie Ndongo Amougou, Sebastien Ombotto, Felicien Ntone, Doriane Edna Wouamba, and Bernadette Ngo Nonga Copyright © 2017 Vicky Jocelyne Ama Moor et al. All rights reserved. Predictors of Improved Walking after a Supervised Walking Exercise Program in Men and Women with Peripheral Artery Disease Sun, 25 Dec 2016 14:24:51 +0000 http://www.hindawi.com/journals/ijvm/2016/2191350/ We compared the changes in ambulatory outcomes between men and women with symptomatic peripheral arterial disease (PAD) following completion of a supervised, on-site, treadmill exercise program, and we determined whether exercise training variables and baseline clinical characteristics were predictive of changes in ambulatory outcomes in men and women. Twenty-three men and 25 women completed the supervised exercise program, consisting of intermittent walking to mild-to-moderate claudication pain for three months. Men and women significantly increased claudication onset time (COT) ( and , resp.) and peak walking time (PWT) ( for each group). However, change in PWT was less in women (54%) than in men (77%) (). Neither group significantly changed 6-minute walk distance (6MWD). In women, baseline COT was the only predictor for the change in COT () and the change in PWT (). In men, baseline COT () and obesity () were predictors for the change in COT, and obesity was the only predictor for the change in PWT (). Following a supervised, on-site, treadmill exercise program, women had less improvement in PWT than men, and neither men nor women improved submaximal, overground 6MWD. Furthermore, obese men and patients with lower baseline COT were least responsive to supervised exercise. This trial is registered with ClinicalTrial.gov, unique identifier: NCT00618670. Andrew W. Gardner, Donald E. Parker, and Polly S. Montgomery Copyright © 2016 Andrew W. Gardner et al. All rights reserved. Venous Adventitial Cystic Disease: A Review of 45 Cases Treated Since 1963 Thu, 03 Nov 2016 08:52:12 +0000 http://www.hindawi.com/journals/ijvm/2016/5287697/ Purpose. To review and identify the most accurate ways of diagnosing and treating adventitial cystic disease (ACD) of the venous system. Methods. Cases of ACD were collected through three popular medical databases, including PubMed, Cochrane, OVID, and MEDLINE. After reviewing the literature, the sites of occurrence of 323 cases of adventitial cystic disease were documented, and all cases of arterial ACD were excluded. The clinical features, treatment, and subsequent course of 45 cases of venous ACD are included in this paper. Results. After reviewing all 45 cases of venous ACD , we have confirmed that the most common vessel affected is the common femoral vein, which reproduces the most common symptom of venous ACD: asymmetric lower extremity swelling worsening over time. Conclusion. Venous ACD most commonly affects the common femoral vein. When unilateral leg swelling occurs with or without a noticeable mass, ACD should be considered. It is best confirmed with CT venography and the treatment of choice is transluminal cyst evacuation and excision. Corey Bascone, Mazen Iqbal, Patrick Narh-Martey, Mauricio Szuchmacher, Michael Cicchillo, and Kambhampaty V. Krishnasastry Copyright © 2016 Corey Bascone et al. All rights reserved. New Indices of Endothelial Function Measured by Digital Thermal Monitoring of Vascular Reactivity: Data from 6084 Patients Registry Tue, 18 Oct 2016 13:03:17 +0000 http://www.hindawi.com/journals/ijvm/2016/1348028/ Background. Endothelial function is viewed as a barometer of cardiovascular health and plays a central role in vascular reactivity. Several studies showed digital thermal monitoring (DTM) as a simple noninvasive method to measure vascular reactivity that is correlated with atherosclerosis risk factors and coronary artery disease. Objectives. To further evaluate the relations between patient characteristics and DTM indices in a large patient registry. Methods. DTM measures were correlated with age, sex, heart rate, and systolic and diastolic blood pressure in 6084 patients from 18 clinics. Results. DTM vascular reactivity index (VRI) was normally distributed and inversely correlated with age (, ). Thirteen percent of VRI tests were categorized as poor vascular reactivity (VRI < 1.0), 70 percent as intermediate (1.0 ≤ VRI < 2.0), and 17 percent as good (VRI ≥ 2.0). Poor VRI (<1.0) was noted in 6% of <50 y, 10% of 50–70 y, and 18% of ≥70 y. In multiple linear regression analyses, age, sex, and diastolic blood pressure were significant but weak predictors of VRI. Conclusions. As the largest database of finger-based vascular reactivity measurement, this report adds to prior findings that VRI is a meaningful physiological marker and reflects a high level of residual risk found in patients currently under care. Morteza Naghavi, Albert A. Yen, Alex W. H. Lin, Hirofumi Tanaka, and Stanley Kleis Copyright © 2016 Morteza Naghavi et al. All rights reserved. Endothelial Dysfunction of Patients with Peripheral Arterial Disease Measured by Peripheral Arterial Tonometry Tue, 18 Oct 2016 07:37:06 +0000 http://www.hindawi.com/journals/ijvm/2016/3805380/ Objective. Endothelial dysfunction plays a key role in atherosclerotic disease. Several methods have been reported to be useful for evaluating the endothelial dysfunction, and we investigated the endothelial dysfunction in patients with peripheral arterial disease (PAD) using peripheral arterial tonometry (PAT) test in this study. Furthermore, we examined the factors significantly correlated with PAT test. Methods. We performed PAT tests in 67 patients with PAD. In addition, we recorded the patients’ demographics, including comorbidities, and hemodynamical status, such as ankle brachial pressure index (ABI). Results. In a univariate analysis, the ABI value (, ) and a history of cerebrovascular disease (, ) were found to significantly correlate with PAT test, which calculated the reactive hyperemia index (RHI). In a multivariate analysis, only the ABI value significantly and independently correlated with RHI (, ). Conclusion. This study showed a significant correlation between RHI and ABI. The PAT test is a useful tool for evaluating not only endothelial dysfunction but also the hemodynamical state in patients with PAD. Kimihiro Igari, Toshifumi Kudo, Takahiro Toyofuku, and Yoshinori Inoue Copyright © 2016 Kimihiro Igari et al. All rights reserved. Relationship of Inflammatory Biomarkers with Severity of Peripheral Arterial Disease Sun, 31 Jul 2016 05:59:44 +0000 http://www.hindawi.com/journals/ijvm/2016/6015701/ Objective. The pentraxin family, including high-sensitivity C-reactive protein (hs-CRP), serum amyloid P (SAP), and pentraxin 3 (PTX3), has been identified as playing a key role in inflammatory reactions such as in atherosclerosis and cardiovascular disease. In this study, we examined the relationship between peripheral arterial disease (PAD) and serum levels of pentraxins. Methods. This study was undertaken via a retrospective review of PAD patients with surgical intervention for lesions of the common femoral artery. We evaluated the preoperative patient conditions, hemodynamic status, such as ankle brachial index (ABI), and clinical ischemic conditions according to Rutherford classification. Preoperatively, we collected blood samples for determining the serum levels of hs-CRP, SAP, and PTX3. Results. Twelve PAD patients with common femoral arterial lesions were treated and examined. The hemodynamic severity of PAD was not negatively correlated with hs-CRP, SAP, or PTX3. The clinical severity evaluated by Rutherford classification was significantly positively correlated with the serum level of PTX3 (). Conclusion. We demonstrated that PTX3 might be a better marker of PAD than hs-CRP and SAP. Furthermore, PTX3 might be a prognostic marker to evaluate the severity of PAD. Kimihiro Igari, Toshifumi Kudo, Takahiro Toyofuku, and Yoshinori Inoue Copyright © 2016 Kimihiro Igari et al. All rights reserved. Simple In-Hospital Interventions to Reduce Door-to-CT Time in Acute Stroke Sun, 10 Jul 2016 08:14:05 +0000 http://www.hindawi.com/journals/ijvm/2016/1656212/ Background. Intravenous tissue plasminogen activator, a time dependent therapy, can reduce the morbidity and mortality of acute ischemic stroke. This study was designed to assess the effect of simple in-hospital interventions on reducing door-to-CT (DTC) time and reaching door-to-needle (DTN) time of less than 60 minutes. Methods. Before any intervention, DTC time was recorded for 213 patients over a one-year period at our center. Five simple quality-improvement interventions were implemented, namely, call notification, prioritizing patients for CT scan, prioritizing patients for lab analysis, specifying a bed for acute stroke patients, and staff education. After intervention, over a course of 44 months, DTC time was recorded for 276 patients with the stroke code. Furthermore DTN time was recorded for 106 patients who were treated with IV thrombolytic therapy. Results. The median DTC time significantly decreased in the postintervention period comparing to the preintervention period [median (IQR); 20 (12–30) versus 75 (52.5–105), ]. At the postintervention period, the median (IQR) DTN time was 55 (40–73) minutes and proportion of patients with DTN time less than 60 minutes was 62.4% (). Conclusion. Our interventions significantly reduced DTC time and resulted in an acceptable DTN time. These interventions are feasible in most hospitals and should be considered. Elyar Sadeghi-Hokmabadi, Aliakbar Taheraghdam, Mazyar Hashemilar, Reza Rikhtegar, Kaveh Mehrvar, Mehrdad Mehrara, Reshad Mirnour, Rogayyeh Hassasi, Hannane Aliyar, Mohammadamin Farzi, and Somayyeh Hasaneh Tamar Copyright © 2016 Elyar Sadeghi-Hokmabadi et al. All rights reserved. Paraoxonase-1 and Simvastatin Treatment in Patients with Stable Coronary Artery Disease Mon, 11 Apr 2016 13:33:10 +0000 http://www.hindawi.com/journals/ijvm/2016/6312478/ Background. Paraoxonase-1 (PON1) is the crucial antioxidant marker of high-density lipoproteins. The present study is aimed at assessing the effect of simvastatin treatment on PON1 activity and its relationship to Q192R and M55L polymorphisms in subjects with stable coronary artery disease (CAD). Methods. The patient group was composed of 53 individuals with stable CAD, and the control group included 53 sex-matched police officers without CAD. CAD patients were treated with simvastatin 40mg/day for 12 months. Respectively, flow mediated dilatation (FMD), serum hs-CRP and TNF-α levels, urinary 8-iso-PGF2α concentrations, and PON1 activity were evaluated in definitive intervals. Results. There was no effect of simvastatin treatment on urinary 8-iso-PGF2α. Simvastatin treatment significantly increased FMD value, decreased CRP and TNF-α concentration. After adjusting for PON1 genotypes, significantly higher PON1 activity was noted in the 192R allele carriers, in both groups. Regardless of genotype, PON1 activity remained stable after simvastatin treatment. Conclusions. The present study confirms a positive effect of simvastatin therapy on endothelial function and inflammatory markers in secondary prevention. Simvastatin treatment shows no effects on PON1 activity and 8-isoprostanes level. The effect of simvastatin therapy on PON1 activity is not modulated by Q192R and M55L polymorphisms. Rafał Januszek Copyright © 2016 Rafał Januszek. All rights reserved. Investigation of TGFβ1-Induced Long Noncoding RNAs in Endothelial Cells Sun, 10 Apr 2016 14:12:03 +0000 http://www.hindawi.com/journals/ijvm/2016/2459687/ Objective. To evaluate the relationship between TGFβ signaling and endothelial lncRNA expression. Methods. Human umbilical vein endothelial cell (HUVECs) lncRNAs and mRNAs were profiled with the Arraystar Human lncRNA Expression Microarray V3.0 after 24 hours of exposure to TGFβ1 (10 ng/mL). Results. Of the 30,584 lncRNAs screened, 2,051 were significantly upregulated and 2,393 were appreciably downregulated () in response to TGFβ. In the same HUVEC samples, 2,148 of the 26,106 mRNAs screened were upregulated and 1,290 were downregulated. Of these 2,051 differentially expressed upregulated lncRNAs, MALAT1, which is known to be induced by TGFβ in endothelial cells, was the most (~220-fold) upregulated lncRNA. Bioinformatics analyses indicated that the differentially expressed upregulated mRNAs are primarily enriched in hippo signaling, Wnt signaling, focal adhesion, neuroactive ligand-receptor interaction, and pathways in cancer. The most downregulated are notably involved in olfactory transduction, PI3-Akt signaling, Ras signaling, neuroactive ligand-receptor interaction, and apoptosis. Conclusions. This is the first lncRNA and mRNA transcriptome profile of TGFβ-mediated changes in human endothelial cells. These observations may reveal potential new targets of TGFβ in endothelial cells and novel therapeutic avenues for cardiovascular disease-associated endothelial dysfunction. Krishna K. Singh, Pratiek N. Matkar, Adrian Quan, Laura-Eve Mantella, Hwee Teoh, Mohammed Al-Omran, and Subodh Verma Copyright © 2016 Krishna K. Singh et al. All rights reserved. Carotid Intima Media Thickness in Nondiabetic Hypertensive Nigerians: Role of Fasting and Postprandial Blood Glucose Sun, 10 Apr 2016 11:35:19 +0000 http://www.hindawi.com/journals/ijvm/2016/1429451/ Background/Aims. Carotid intima media thickness (CIMT) tracks atherosclerotic vascular disease. Hypertension and diabetes chiefly contribute to atherosclerosis with 75% of symptomatic cardiovascular disease cases having dysglycaemia even in normal cases. Hypothesising that postprandial hyperglycaemia contributes to cardiovascular morbidity, we sought to determine if any relationship existed between glycaemic profile in nondiabetic hypertensives and atherosclerosis. Methods. In a study of CIMT in nondiabetic, statin-naïve hypertensives, we evaluated fasting blood glucose (FBG) and 2-hour postprandial sugar (2hPPBG) in the patients and compared them with the CIMT. CIMT was measured on both sides, 1 cm proximal to the carotid bulb using a 7.5 mHz transducer of ALOKA SSD-3500 ultrasound machine. Results. The subjects with complete data were 86 (63 F). The mean (SD) of CIMT was 0.89 (0.15) mm, FBG 4.8 (0.097) mmol/L, and 2hPPBG 6.5 (1.81) mmol/L. There was no significant correlation between FBG and 2hPPBG with CIMT. Blood pressure had no bearing on this. When blood glucose data were divided into quartiles and post hoc multiple comparison was done, there was significant difference in CIMT for the different ranges. This was not so for 2hPPBG. Conclusion. Though expected from other studies, we did not show any significant correlation between FBG and 2hPPBG status and CIMT. This may be our pattern as the degree of excursion of 2hPPBG was low. There may be a threshold level above which PPBG starts to impact CIMT. B. N. Okeahialam, S. A. Muoneme, and H. O. Kolade-Yunusa Copyright © 2016 B. N. Okeahialam et al. All rights reserved. CT Angiography Analysis of Axillary Artery Diameter versus Common Femoral Artery Diameter: Implications for Axillary Approach for Transcatheter Aortic Valve Replacement in Patients with Hostile Aortoiliac Segment and Advanced Lung Disease Sun, 27 Mar 2016 10:13:50 +0000 http://www.hindawi.com/journals/ijvm/2016/3610705/ Objective. The use of the axillary artery as an access site has lost favor in percutaneous intervention due to the success of these procedures from a radial or brachial alternative. However, these distal access points are unable to safely accommodate anything larger than a 7-French sheath. To date no studies exist describing the size of the axillary artery in relation to the common femoral artery in a patient population. We hypothesized that the axillary artery is of comparable size to the CFA in most patients and less frequently diseased. Methods. We retrospectively reviewed 110 CT scans of the thoracic and abdominal aorta done at our institution to rule out aortic dissection in which the right axillary artery, right CFA, left axillary artery, and left CFA were visualized. Images were then reconstructed using commercially available TeraRecon software and comparative measurements made of the axillary and femoral arteries. Results. In 96 patients with complete data, the mean sizes of the right and left axillary artery were slightly smaller than the left and right CFA. A direct comparison of the sizes of the axillary artery and CFA in the same patient yielded a mean difference of 1.69 mm ± 1.74. In all patients combined, the mean difference between the axillary artery and CFA was 1.88 mm on the right and 1.68 mm on the left. In 19 patients (19.8%), the axillary artery was of the same caliber as the associated CFA. In 8 of 96 patients (8.3%), the axillary artery was larger compared to the CFA. Conclusions. Although typically smaller, the axillary artery is often of comparable size to the CFA, significantly less frequently calcified or diseased, and in almost all observed cases large enough to accommodate a sheath with up to 18 French. Rajiv Tayal, Humayun Iftikhar, Benjamin LeSar, Rahul Patel, Naveen Tyagi, Marc Cohen, and Najam Wasty Copyright © 2016 Rajiv Tayal et al. All rights reserved. Renal Blood Flow Response to Angiotensin 1-7 versus Hypertonic Sodium Chloride 7.5% Administration after Acute Hemorrhagic Shock in Rats Thu, 17 Mar 2016 08:21:33 +0000 http://www.hindawi.com/journals/ijvm/2016/6562017/ Background. Angiotensin 1-7 (Ang1-7) plays an important role in renal circulation. Hemorrhagic shock (HS) may cause kidney circulation disturbance, and this study was designed to investigate the renal blood flow (RBF) response to Ang1-7 after HS. Methods. 27 male Wistar rats were subjected to blood withdrawal to reduce mean arterial pressure (MAP) to 45 mmHg for 45 min. The animals were treated with saline (group 1), Ang1-7 (300 ng·kg−1 min−1), Ang1-7 in hypertonic sodium chloride 7.5% (group 3), and hypertonic solution alone (group 4). Results. MAP was increased in a time-related fashion () in all groups; however, there was a tendency for the increase in MAP in response to hypertonic solution (). Ang1-7, hypertonic solution, or combination of both increased RBF in groups 2-4, and these were significantly different from saline group (); that is, Ang1-7 leads to a significant increase in RBF to 1.35 ± 0.25 mL/min compared with 0.55 ± 0.12 mL/min in saline group (). Conclusion. Although Ang1-7 administration unlike hypertonic solution could not elevate MAP after HS, it potentially could increase RBF similar to hypertonic solution. This suggested that Ang1-7 recovers RBF after HS when therapeutic opportunities of hypertonic solution are limited. Maryam Maleki and Mehdi Nematbakhsh Copyright © 2016 Maryam Maleki and Mehdi Nematbakhsh. All rights reserved. Children and Adolescent Obesity Associates with Pressure-Dependent and Age-Related Increase in Carotid and Femoral Arteries’ Stiffness and Not in Brachial Artery, Indicative of Nonintrinsic Arterial Wall Alteration Tue, 15 Mar 2016 07:35:38 +0000 http://www.hindawi.com/journals/ijvm/2016/4916246/ Aim. To analyze if childhood obesity associates with changes in elastic, transitional, and/or muscular arteries’ stiffness. Methods. 221 subjects (4–15 years, 92 females) were assigned to normal weight (NW, ) or obesity (OB, ) groups, considering their body mass index -score. Age groups were defined: 4–8; 8–12; 12–15 years old. Carotid, femoral, and brachial artery local stiffness was determined through systodiastolic pressure-diameter and stress-strain relationships. To this end, arterial diameter and peripheral and aortic blood pressure (BP) levels and waveforms were recorded. Carotid-femoral, femoropedal, and carotid-radial pulse wave velocities were determined to evaluate aortic, lower-limb, and upper-limb regional arterial stiffness, respectively. Correlation analysis between stiffness parameters and BP was done. Results. Compared to NW, OB subjects showed higher peripheral and central BP and carotid and femoral stiffness, reaching statistical significance in subjects aged 12 and older. Arterial stiffness differences disappeared when levels were normalized for BP. There were no differences in intrinsic arterial wall stiffness (elastic modulus), BP stiffness relationships, and regional stiffness parameters. Conclusion. OB associates with BP-dependent and age-related increase in carotid and femoral (but not brachial) stiffness. Stiffness changes would not be explained by intrinsic arterial wall alterations but could be associated with the higher BP levels observed in obese children. Victoria García-Espinosa, Santiago Curcio, Juan Manuel Castro, Maite Arana, Gustavo Giachetto, Pedro Chiesa, Yanina Zócalo, and Daniel Bia Copyright © 2016 Victoria García-Espinosa et al. All rights reserved. ABPI against Colour Duplex Scan: A Screening Tool for Detection of Peripheral Arterial Disease in Low Resource Setting Approach to Validation Thu, 10 Mar 2016 06:20:06 +0000 http://www.hindawi.com/journals/ijvm/2016/1390475/ Background. In Sri Lanka the ABPI has not been used as a screening tool to detect peripheral arterial disease (PAD) in epidemiological studies. This study was conducted to determine the best cutoff value of ABPI to detect PAD in Sri Lankan population. Methods. The ABPI measured by arterial Doppler to detect PAD was validated against colour duplex scan as the criterion using 165 individuals referred to vascular laboratory, National Hospital Sri Lanka. In all selected individuals ABPI was measured and lower limb colour duplex scan was performed. Narrowing of luminal diameter of lower limb arteries 50% or more was considered as haemodynamically significant and having PAD. The discriminative performance of the ABPI was assessed using Receiver Operator Characteristic (ROC) curve and calculating the area under the curve (AUC). The sensitivity and specificity of different threshold levels of ABPI and the best cutoff value of ABPI to detect PAD were determined. Results. ABPI 0.89 was determined as the best cutoff value to identify individuals with PAD. At this level of ABPI high sensitivity (87%), specificity (99.1%), positive predictive value (98.9%), and negative predictive value (88.4%) were observed. Conclusion. ABPI ≤ 0.89 could be used as the best cut off value to detect PAD. Janaka Weragoda, Rohini Seneviratne, Manuj C. Weerasinghe, and S. M. Wijeyaratne Copyright © 2016 Janaka Weragoda et al. All rights reserved. Single Low-Density Lipoprotein Apheresis Does Not Improve Vascular Endothelial Function in Chronically Treated Hypercholesterolemic Patients Mon, 22 Feb 2016 13:22:05 +0000 http://www.hindawi.com/journals/ijvm/2016/4613202/ Objective. To investigate vascular endothelial function (VEF) responses to a single low-density lipoprotein (LDL) apheresis session in hypercholesterolemic patients undergoing chronic treatment. Methods. We measured brachial artery flow-mediated dilation (FMD), plasma lipids, vitamin E (α- and γ-tocopherol), markers of oxidative/nitrative stress (malondialdehyde (MDA) and nitro-γ-tocopherol (NGT)), and regulators of NO metabolism (arginine (ARG) and asymmetric dimethylarginine (ADMA)) prior to (Pre) and immediately following (Post) LDL apheresis and at 1, 3, 7, and 14 d Post in 5 hypercholesterolemic patients ( y). Results. Relative to Pre, total cholesterol ( mmol/L) and LDL-cholesterol ( mmol/L) were 61% and 70% lower (), respectively, at Post and returned to Pre levels at 14 d. Brachial FMD responses (%) and plasma MDA, ARG, and ADMA concentrations were unaffected by LDL apheresis. Plasma α-tocopherol, γ-tocopherol, and NGT concentrations were 52–69% lower at Post (), and α-tocopherol remained 36% lower at 1 d whereas NGT remained 41% lower at d 3. Conclusions. Acute cholesterol reduction by LDL apheresis does not alter VEF, oxidative stress, or NO homeostasis in patients treated chronically for hypercholesterolemia. Kevin D. Ballard, Eunice Mah, Yi Guo, Richard S. Bruno, Beth A. Taylor, Jo Ellen Beam, Donna M. Polk, and Paul D. Thompson Copyright © 2016 Kevin D. Ballard et al. All rights reserved. Dependence of Proximal GC Boxes and Binding Transcription Factors in the Regulation of Basal and Valproic Acid-Induced Expression of t-PA Sun, 07 Feb 2016 07:32:08 +0000 http://www.hindawi.com/journals/ijvm/2016/7928681/ Objective. Endothelial tissue-type plasminogen activator (t-PA) release is a pivotal response to protect the circulation from occluding thrombosis. We have shown that the t-PA gene is epigenetically regulated and greatly induced by the histone deacetylase (HDAC) inhibitor valproic acid (VPA). We now investigated involvement of known t-PA promoter regulatory elements and evaluated dependence of potential interacting transcription factors/cofactors. Methods. A reporter vector with an insert, separately mutated at either the t-PA promoter CRE or GC box II or GC box III elements, was transfected into HT-1080 and HUVECs and challenged with VPA. HUVECs were targeted with siRNA against histone acetyl transferases (HAT) and selected transcription factors from the Sp/KLF family. Results. An intact VPA-response was observed with CRE mutated constructs, whereas mutation of GC boxes II and III reduced the magnitude of the induction by 54 and 79% in HT-1080 and 49 and 50% in HUVECs, respectively. An attenuated induction of t-PA mRNA was observed after Sp2, Sp4, and KLF5 depletion. KLF2 and p300 (HAT) were identified as positive regulators of basal t-PA expression and Sp4 and KLF9 as repressors. Conclusion. VPA-induced t-PA expression is dependent on the proximal GC boxes in the t-PA promoter and may involve interactions with Sp2, Sp4, and KLF5. Erik Ulfhammer, Pia Larsson, Mia Magnusson, Lena Karlsson, Niklas Bergh, and Sverker Jern Copyright © 2016 Erik Ulfhammer et al. All rights reserved. Imaging Techniques for Diagnosis of Thoracic Aortic Atherosclerosis Thu, 04 Feb 2016 13:12:49 +0000 http://www.hindawi.com/journals/ijvm/2016/4726094/ The most severe complications after cardiac surgery are neurological complications including stroke which is often caused by emboli merging from atherosclerosis in the ascending aorta to the brain. Information about the thoracic aorta is crucial in reducing the embolization risk for both surgical open and closed chest procedures such as transaortic heart valve implantation. Several techniques are available to screen the ascending aorta, for example, transesophageal echocardiography (TEE), epiaortic ultrasound, TEE A-view method, manual palpation, computed tomography, and magnetic resonance imaging. This paper provides a description of the advantages and disadvantages of these imaging techniques. Wouter W. Jansen Klomp, George J. Brandon Bravo Bruinsma, Arnoud W. van ’t Hof, Jan. G. Grandjean, and Arno P. Nierich Copyright © 2016 Wouter W. Jansen Klomp et al. All rights reserved. A Comparison of Measures of Endothelial Function in Patients with Peripheral Arterial Disease and Age and Gender Matched Controls Sun, 31 Jan 2016 10:12:35 +0000 http://www.hindawi.com/journals/ijvm/2016/2969740/ This study compared flow-mediated dilatation (FMD), peripheral artery tonometry (PAT), and serum nitric oxide (NO) measures of endothelial function in patients with peripheral artery disease (PAD) against age/gender matched controls. 25 patients (mean age: 72.4 years, M : F 18 : 7) with established PAD and an age/gender matched group of 25 healthy controls (mean age: 72.4 years, M : F 18 : 7) were studied. Endothelial function was measured using the % FMD, reactive hyperemia index (RHI) using PAT and serum NO (μmol). Difference for each method between PAD and control patients and correlation between the methods were investigated. FMD and RHI were lower in patients with PAD (median FMD for PAD = 2.16% versus control = 3.77%, and median RHI in PAD = 1.64 versus control = 1.92, ). NO levels were not significantly different between the groups (PAD median = 7.70 μmol, control median = 13.05 μmol, ). These results were obtained in elderly patients and cannot be extrapolated to younger individuals. FMD and PAT both demonstrated a lower hyperaemic response in patients with PAD; however, FMD results in PAD patients were unequivocally reduced whereas half the PAD patients had RHI values above the established threshold for endothelial dysfunction. This suggests that FMD is a more appropriate method for the measurement of NO-mediated endothelial function. Richard B. Allan, Simon V. Vun, and J. Ian Spark Copyright © 2016 Richard B. Allan et al. All rights reserved. Vascular Health in American Football Players: Cardiovascular Risk Increased in Division III Players Sun, 24 Jan 2016 08:42:56 +0000 http://www.hindawi.com/journals/ijvm/2016/6851256/ Studies report that football players have high blood pressure (BP) and increased cardiovascular risk. There are over 70,000 NCAA football players and 450 Division III schools sponsor football programs, yet limited research exists on vascular health of athletes. This study aimed to compare vascular and cardiovascular health measures between football players and nonathlete controls. Twenty-three athletes and 19 nonathletes participated. Vascular health measures included flow-mediated dilation (FMD) and carotid artery intima-media thickness (IMT). Cardiovascular measures included clinic and 24 hr BP levels, body composition, , and fasting glucose/cholesterol levels. Compared to controls, football players had a worse vascular and cardiovascular profile. Football players had thicker carotid artery IMT (0.49 ± 0.06 mm versus 0.46 ± 0.07 mm) and larger brachial artery diameter during FMD ( mm versus  mm), but no difference in percent FMD. Systolic BP was significantly higher in football players at all measurements: resting ( mmHg versus  mmHg), submaximal exercise ( mmHg versus  mmHg), maximal exercise ( mmHg versus  mmHg), and 24-hour BP ( mmHg versus  mmHg). Football players also had higher fasting glucose ( mg/dL versus  mg/dL), lower HDL ( mg/dL versus  mg/dL), and higher body fat percentage (% versus %). Division III collegiate football players remain an understudied population and may be at increased cardiovascular risk. Deborah L. Feairheller, Kristin R. Aichele, Joyann E. Oakman, Michael P. Neal, Christina M. Cromwell, Jessica M. Lenzo, Avery N. Perez, Naomi L. Bye, Erica L. Santaniello, Jessica A. Hill, Rachel C. Evans, Karla A. Thiele, Lauren N. Chavis, Allyson K. Getty, Tia R. Wisdo, JoAnna M. McClelland, Kathleen Sturgeon, and Pam Chlad Copyright © 2016 Deborah L. Feairheller et al. All rights reserved. Retrievable Inferior Vena Cava Filters in Patients with Cancer: Complications and Retrieval Success Rate Thu, 21 Jan 2016 13:11:28 +0000 http://www.hindawi.com/journals/ijvm/2016/6413541/ Active cancer (ACa) is strongly associated with venous thromboembolism and bleeding. Retrievable inferior vena cava filters (RIVCF) are frequently placed in these patients when anticoagulation cannot be continued. Objectives. To describe the complications and retrieval rate of inferior vena cava filters in patients with ACa. Methods. Retrospective review of 251 consecutive patients with RIVCF in a single institution. Results. We included 251 patients with RIVCF with a mean age of 58.1 years and a median follow-up of 5.4 months (164 days, IQR: 34–385). Of these patients 32% had ACa. There were no differences in recurrence rate of DVT between patients with ACa and those without ACa (13% versus 17%, = ns). Also, there were no differences in major filter complications (11% ACa versus 7% no ACa, = ns). The filter retrieval was not different between groups (log-rank = 0.16). Retrieval rate at 6 months was 49% in ACa patients versus 64% in patients without ACa ( = ns). Filter retrieval was less frequent in ACa patients with metastatic disease ( < 0.01) or a nonsurgical indication for filter placement ( = 0.04). Conclusions. No differences were noted in retrieval rate, recurrent DVT, or filter complications between the two groups. ACa should not preclude the use of RIVCF. Ana I. Casanegra, Lisa M. Landrum, and Alfonso J. Tafur Copyright © 2016 Ana I. Casanegra et al. All rights reserved. Phenotypic and Functional Changes of Endothelial and Smooth Muscle Cells in Thoracic Aortic Aneurysms Tue, 19 Jan 2016 13:04:22 +0000 http://www.hindawi.com/journals/ijvm/2016/3107879/ Thoracic aortic aneurysm develops as a result of complex series of events that alter the cellular structure and the composition of the extracellular matrix of the aortic wall. The purpose of the present work was to study the cellular functions of endothelial and smooth muscle cells from the patients with aneurysms of the thoracic aorta. We studied endothelial and smooth muscle cells from aneurysms in patients with bicuspid aortic valve and with tricuspid aortic valve. The expression of key markers of endothelial (CD31, vWF, and VE-cadherin) and smooth muscle (SMA, SM22α, calponin, and vimentin) cells as well extracellular matrix and MMP activity was studied as well as and apoptosis and cell proliferation. Expression of functional markers of endothelial and smooth muscle cells was reduced in patient cells. Cellular proliferation, migration, and synthesis of extracellular matrix proteins are attenuated in the cells of the patients. We show for the first time that aortic endothelial cell phenotype is changed in the thoracic aortic aneurysms compared to normal aortic wall. In conclusion both endothelial and smooth muscle cells from aneurysms of the ascending aorta have downregulated specific cellular markers and altered functional properties, such as growth rate, apoptosis induction, and extracellular matrix synthesis. Anna Malashicheva, Daria Kostina, Aleksandra Kostina, Olga Irtyuga, Irina Voronkina, Larisa Smagina, Elena Ignatieva, Natalia Gavriliuk, Vladimir Uspensky, Olga Moiseeva, Jarle Vaage, and Anna Kostareva Copyright © 2016 Anna Malashicheva et al. All rights reserved. Childhood Obesity Associates Haemodynamic and Vascular Changes That Result in Increased Central Aortic Pressure with Augmented Incident and Reflected Wave Components, without Changes in Peripheral Amplification Mon, 11 Jan 2016 07:14:24 +0000 http://www.hindawi.com/journals/ijvm/2016/3129304/ The aims were to determine if childhood obesity is associated with increased central aortic blood pressure (BP) and to characterize haemodynamic and vascular changes associated with BP changes in obese children and adolescents by means of analyzing changes in cardiac output (stroke volume, SV), arterial stiffness (aortic pulse wave velocity, PWV), peripheral vascular resistances (PVR), and net and relative contributions of reflected waves to the aortic pulse wave amplitude. We included 117 subjects (mean/range age: 10 (5–15) years, 49 females), who were obese (OB) or had normal weight (NW). Peripheral and central aortic BP, PWV, and pulse wave-derived parameters (augmentation index, amplitude of forward and backward components) were measured with tonometry (SphygmoCor) and oscillometry (Mobil-O-Graph). With independence of the presence of dyslipidemia, hypertension, or sedentarism, the aortic systolic and pulse BP were higher in OB than in NW subjects. The increase in central BP could not be explained by the elevation in the relative contribution of reflections to the aortic pressure wave and higher PVR or by an augmented peripheral reflection coefficient. Instead, the rise in central BP could be explained by an increase in the amplitude of both incident and reflect wave components associated to augmented SV and/or PWV. Juan M. Castro, Victoria García-Espinosa, Santiago Curcio, Maite Arana, Pedro Chiesa, Gustavo Giachetto, Yanina Zócalo, and Daniel Bia Copyright © 2016 Juan M. Castro et al. All rights reserved. Treatment of Intravenous Leiomyomatosis with Cardiac Extension following Incomplete Resection Thu, 10 Dec 2015 13:00:10 +0000 http://www.hindawi.com/journals/ijvm/2015/756141/ Aim. Intravenous leiomyomatosis (IVL) with cardiac extension (CE) is a rare variant of benign uterine leiomyoma. Incomplete resection has a recurrence rate of over 30%. Different hormonal treatments have been described following incomplete resection; however no standard therapy currently exists. We review the literature for medical treatments options following incomplete resection of IVL with CE. Methods. Electronic databases were searched for all studies reporting IVL with CE. These studies were then searched for reports of patients with inoperable or incomplete resection and any further medical treatments. Our database was searched for patients with medical therapy following incomplete resection of IVL with CE and their results were included. Results. All studies were either case reports or case series. Five literature reviews confirm that surgery is the only treatment to achieve cure. The uses of progesterone, estrogen modulation, gonadotropin-releasing hormone antagonism, and aromatase inhibition have been described following incomplete resection. Currently no studies have reviewed the outcomes of these treatments. Conclusions. Complete surgical resection is the only means of cure for IVL with CE, while multiple hormonal therapies have been used with varying results following incomplete resection. Aromatase inhibitors are the only reported treatment to prevent tumor progression or recurrence in patients with incompletely resected IVL with CE. Mathew P. Doyle, Annette Li, Claudia I. Villanueva, Sheen C. S. Peeceeyen, Michael G. Cooper, Kevin C. Hanel, Gary G. Fermanis, and Greg Robertson Copyright © 2015 Mathew P. Doyle et al. All rights reserved.