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Clinical Study | Open Access

Volume 2012 |Article ID 927923 | https://doi.org/10.5402/2012/927923

Mohammad Bagher Owlia, Seyed Jalil Mirhosseini, Nafiseh Naderi, Seyed Mohammad Yousof Mostafavi Pour Manshadi, Sadegh Ali Hassan Sayegh, "Rheumatological Findings in Candidates for Valvular Heart Surgery", International Scholarly Research Notices, vol. 2012, Article ID 927923, 5 pages, 2012. https://doi.org/10.5402/2012/927923

Rheumatological Findings in Candidates for Valvular Heart Surgery

Academic Editor: M. G. Danieli
Received27 Aug 2012
Accepted03 Oct 2012
Published24 Oct 2012

Abstract

Background and Objectives. Valvular heart diseases are among the frequent causes of cardiac surgery. Some patients have a well-known rheumatic condition. Heart valves are fragile connective tissues which are vulnerable to any systemic autoimmune diseases. This study was designed to evaluate the frequency of rheumatological background in patients candidate for valvular heart surgery in Afshar Cardiovascular Center, Yazd, Iran. Methods. One hundred and twenty (120) patients candidate for valvular heart surgery were selected for this study. Careful history and physical examination were undertaken from rheumatological stand points. The most sensitive screening serologic tests were also assayed. Results. The result of this study showed that 53.3% were male and 46.6% were female with mean age of years old. 45.8% of the patients had history of nonmechanical joint disease, 14.2% had history of rheumatological conditions in their family, and 30% had history of constitutional symptoms. 29.8% had positive joint dysfunction findings in their physical examination while 25.8% had anemia of chronic disease. Positive Rheumatoid factor (RF), anticyclic citrullinated peptide (CCP, ACPA), C-reactive protein (CRP), antinuclear antibody (ANA), abnormal urine and elevated erythrocyte sedimentation rate (ESR) were 34, 2.5, 26.7, 4.2, 5, and 36.7%, respectively. Antineutrophil cytoplasmic antibody (ANCA) and antiphospholipid (APL) were positive in a few cases. Conclusion. The findings of this study show immunologic bases for most patients with valvular heart diseases candidate for surgery. Undifferentiated connective tissue diseases may play an important role in the pathophysiology of valvular damage.

1. Introduction

Valvular heart diseases (VHD) surround a number of common cardiovascular disorders that account for 15% of all cardiac surgical procedures in the world. Patients with VHD require intervention for improvement, relief, or valve replacement. One of the most important pathogeneses of coronary artery stenosis and VHD is inflammatory response of immune system. Prevalence and incidence of cardiovascular diseases resulting from rheumatologic disorders are increasing, however, advanced treatments which are now available [13]. Rheumatic diseases can be assumed by taking a clinical history and conducting thorough physical examination. Laboratory and radiographic investigations can help to diagnose more accurately; however, clinical skills and expertise are an essential factor in diagnosing undifferentiated connective tissue diseases. The frequent complaints of rheumatologic disorders include pain and swelling of joints and signs of loss of function in different organs [4, 5]. This study was designed to evaluate the frequency of rheumatological manifestations and serologic evaluation in patients candidate for valvular surgery in Afshar Cardiovascular Center, Yazd, Iran.

2. Material and Methods

Our cross-sectional study was approved by the ethics committee of our university. After receiving the written consent from the patients, they had undergone valvular heart surgery from May, 2010 to November, 2011 in Afshar Cardiovascular Center, Yazd, Iran. All operations were performed by a consultant surgeon. One hundred and twenty patients candidate for valvular heart surgery were selected for this study. History taking and thorough physical examination were performed for all of them. Preoperative tests such as C-reactive protein (CRP), erythrocyte sedimentation rate (ESR), complete blood count (CBC), urine analysis (UA), antinuclear antibody (ANA), antiphospholipid (APL) (IgM & IgG), antineutrophil cytoplasmic antibody (ANCA), antistreptolysin-O (ASO), and rheumatoid factor (RF) were performed on patients’ samples. Pathological and echocardiography findings along with the results of serologic and rheumatologic tests were saved in a questionnaire. Data were analyzed using SPSS version 15 software. ANOVA, chi-square, and -test were used for quantitative and qualitative variables.

3. Results

One hundred and twenty (120) patients candidate for valvular heart surgery were selected for this study. Their average age was years. Of these cases, 64 cases (53.3%) were males and 56 cases (46.6%) were females. The positive medical history of patients is shown in Table 1.


Positive medical historyNumberPercentage

Familial history of rheumatism1714.2
Joint dysfunction5545.8
Recurrent infection1613.3
Skin or mucous disease1613.3
Neurologic disease2319.2
Eye disease 1310.8
Ear disease119.2
History of chronic pulmonary disease2319.2
History of MI or vein thrombosis 1512.5
Pericarditis or arrhythmia 1411.7
Chronic gastric disease97.4
Abortion 108.3
Renal disease 1815
Hypothyroid 54.1
Diabetic mellitus 3025

Distribution of clinical findings in participants was important because 17 cases (14.2%) had familial history of rheumatism and 55 cases (45.8%) had joints dysfunction. The positive clinical findings in our patients are presented in Table 2.


Positive clinical findingsNumberPercentage

Dysfunction of peripheral and axial joints3529.8
Skin, hair, and nail disease 108.3
Mucous disease108.3
Pulmonary or cardiovascular disease 10083.3
Lymphatic gland disease65
Thyroid disease 75.8
Abdominal disease 75.8
Neurologic disease108.3

White blood cells counts were divided into two groups (>4000 and <4000); of all the patients, 3 (2.5%) were leucopenia, 31 (25.8%) had anemia with hemoglobin concentration <11, and 18 (15%) had platelet count <140000 as thrombocytopenia. Of all the patients, 79 (65.8%) had negative rheumatoid factor (RF), while 41 (34.2%) had positive RF; however, of all the cases with positive RF, 28 cases (23.3%) had one positive RF, and 13 cases (10.8%) had double positive RF. Of the 120 patients, 88 (73.3%) had negative CRP, while 32 (26.7%) had positive CRP; however, 26 cases (21.7%), 5 cases (4.2%), and 1 case (0.8%) had single, double, and triple positive CRP, respectively. Patients with positive results (higher than one) for some tests such as ANA, ANCA-C, and ANCA-P were 5 cases (4.2%), 1 case (0.8%), and 3 cases (2.5%) respectively. Of all the patients, 2 cases (1.7%) had APL-IgM, while two other cases (1.7%) had APL-IgG > 10, respectively. We had 3 cases (2.5%), with anti CCP > 30 (positive result), and 13 cases (10.8%) with ASO > 250 (positive result). Pathologic and echocardiography findings of all patients are presented in Tables 3 and 4, respectively.


VariablesNumberPercentage

Acute or chronic inflammation3630
Rheumatism 3326.6
Degeneration of valves4940.8
Endocarditic 21.6


VariablesMild (n (%))Moderate (n (%))Severe (n (%))

Mitral valve insufficiency 12 (10)22 (18.3)17 (14.2)
Mitral stenosis 3 (2.5)19 (15.8)35 (29.2)
Aortic valve insufficiency12 (10)24 (20)27 (22.5)
Aortic stenosis2 (1.7)4 (3.3)9 (7.5)
Tricuspid valve insufficiency13 (10.8)5 (4.2)7 (5.8)
Tricuspid stenosis0 (0)0 (0)2 (1.7)
Pulmonary valve insufficiency2 (1.7)0 (0)1 (0.8)
Pulmonary stenosis0 (0)0 (0)0 (0)

4. Discussion

Heart and rheumatism are to words closely related together since centuries. Both patients and physicians are concerned about involvement of heart in rheumatic diseases, because the immunologic damage to the heart is usually irreversible. This is a “truth” not a “myth.” Cardiac tissues especially leaflet are extremely vulnerable to the process of inflammation and autoimmunity. Heart was the major concern in the era of discovery of acute rheumatic fever in 1950s, when little was known about spectrum of highly protean rheumatic diseases and the serologic tools for differentiation of apparently similar conditions were minimal [6]. Heart and joints are the most moving organs in the body and authors suppose that this common feature may be a factor for this excess vulnerability. All layers of heart are susceptible to immune injury and we believe that “the more intensity of systemic inflammation, the more probability of heart to be involved.” The examples are systemic lupus erythematosus and acute rheumatic fever or even a frank sepsis. Lower grades of smoldering involvements can be seen in almost all other rheumatic diseases [7]. Accelerated coronary artery disease is coming to be a concern in conditions like rheumatoid arthritis [8]. Patients under cardiac valve surgery, rather than congenial diseases, usually have hidden inflammatory background, and these backgrounds can be known as rheumatologic condition such as rheumatoid arthritis (RA), lupus, antiphospholipids syndrome, or be some kinds of undifferentiated connective tissue diseases.

In a study by Horstkotte et al. [9], about 77% of 1051 patients who were waiting for operation on mitral valve stenosis had some features of rheumatism. The results of the above study were in accordance with those of this study, and its results confirm the necessity of this study. In the study of Penmetcha et al. [10], severe mitral valve regurgitation in a case of scleroderma/systemic lupus overlap was reported. And in a report by Leff et al. [11], acute aortic insufficiency in a 17-year-old patient with Wegener’s granulomatosis was reported.

In the study of Lee et al. [12], aortic valve involvement in Behçet’s disease was investigated. In the study of Evangelopoulos et al. [13], relationship between mitral valve prolapse and systemic lupus was observed. Mitral valve prolapse was diagnosed in 19 out of 87 patients with lupus. Also, anticardiolipin antibodies were higher in lupus patients with mitral prolapse [13].

In the study of Maksimowicz-McKinnon and Mandell [14], cardiac valvular diseases were investigated in patients with systemic autoimmune disorders of RA, lupus, antiphospholipid syndrome, seronegative arthropathies, systemic vasculitis, and scleroderma, and different valvular disorders were shown [14]. In the study of Doria et al. [15], cardiac involvement was investigated in lupus, and it was observed that pericarditis was the most common cardiac involvement in the lupus. Valve damage, myocarditis, and coronary vascular involvements were among other cardiac involvements that was reported in the lupus [15]. In the study of Tenedios et al. [16], cardiac involvement in antiphospholipid syndrome was investigated; cardiac manifestation of antiphospholipid, valve abnormalities such as vegetation and valve thickening were reported. Also, atherosclerosis and infracted myocardium, intracardiac thrombus, ventricle functional disorders, and pulmonary hypertension were reported in lupus [16].

In a study by Atzeni et al. [17], Behçet’s disease and its cardiac involvement were investigated. Cardiac manifestations in 7% to 46% of the patients and mortality of 20% were reported. Endocarditis, myocarditis, pericarditis, acute myocardial infarction, ventricular thromboses, congestive cardiomyopathy, and functional valve disorder were also reported in these patients [17].

In the study of Kamiński et al. [18], 50 patients diagnosed of RA were studied according to the American College of Rheumatology Criteria. The results indicated that RA leads to valve degeneration, and these damages are related to atrial and ventricular hypertrophy [18]. In a study by Voskuyl, pericarditis, cardiomyopathy, myocarditis, coronary vasculitis, arrhythmia, and valve diseases were observed in a group of RA patients. Congestive heart failure and ischemic heart disease (IHD) were also more prevalent [19]. The results of a study conducted by Guilherme et al. [20] indicated that in 30% to 45% of patients, serious complication of rheumatic fever and chronic valve damages is evident.

In one study conducted by Santiago et al., valvular diseases were investigated in lupus and valvulopathy in 17 patients (15%), pulmonary hypertension in 7 patients (6.2%), and pericardial effusion in 2 patients (1.8%) were observed [21].

In a study by Gabrielli et al. [22], valvular involvement in systemic lupus and antiphospholipid syndrome was investigated; valve damages were observed in 15 patients with systemic lupus (38%). These abnormalities were mitral valve thickening or vegetation, mitral valve prolapse, aortic valve vegetation, mitral valve regurgitation and aortic, tricuspid, and mitral valve stenosis. In the systemic lupus, high level of anticardiolipin antibodies was reported in 73% of patients with valve damages and in 67% of patients without valve damages [22]. Anticardiolipin antibodies were also reported in 73% of patients with valve damages and 62% of patients without valve damages. Thus, the result was in accordance with that of the present study. In a study by Kitas et al., cardiac involvement was studied in patients with rheumatologic disorders and he showed some degrees of valve involvement in RA. Myocarditis was found in 30% of the autopsied patients. There was ischemic heart disease (IHD) in 50% of the RA patients [4].

In a study by Neumann et al. [23], cardiac involvement was studied in 49 patients with Churg-Strauss syndrome. Twenty-two patients had clinical evidences of cardiac involvement. Negative ANCA and high eosinophil count were reported in the patients with cardiac involvement. Functional disorder of left ventricle (50%), valve insufficiency (73%), and pericardial effusion (41%) were the most common findings in these patients [23].

In a study by Beckhauser et al., valve involvements in RA patients were investigated. Twenty-eight RA patients (15.2%) were recognized with valve disease. Valve damages were more common in patients whose disease was more than 15 years and the aortic valve was the most common. There was no relationship between valve involvement and gender, age, and exposure to tobacco, positive rheumatoid factor, presence of ANA, rheumatoid nodules, and anticardiolipin antibodies [24].

In this study, high frequency of positive results for RF, ANA, and markers of inflammation shows that inflammation in general and autoimmunity per se may have a crucial role in most of valvular diseases leading to surgical repair.

5. Conclusion

Various rheumatologic conditions may lead to valvular involvements necessitating heart surgery in some instances. Basic mechanism in valvular heart diseases is possibly the same or at least similar as the pathophysiology of autoimmune diseases. The role of rheumatic conditions other than acute rheumatic fever in the etiology of valvular heart diseases may probably be underemphasized over decades.

This project is the result of medical thesis of Dr. N. Naderi practicing as general practitioner.

Conflict of Interests

None of the authors have any conflict of interests associated with the work presented in this paper. All authors had access to the data and played a role in writing this paper. All authors meet criteria for authorship.

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Copyright © 2012 Mohammad Bagher Owlia et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


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