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BioMed Research International
Volume 2017, Article ID 2027594, 6 pages
Research Article

Prevalence of Autonomic Dysreflexia in Patients with Spinal Cord Injury above T6

1Department of Rehabilitation Medicine, Wonkwang University School of Medicine, 895 Muwang-ro, Iksan, Jeonbuk 54538, Republic of Korea
2Department of Rehabilitation Medicine and Institute of Wonkwang Medical Science, Wonkwang University School of Medicine, 895 Muwang-ro, Iksan, Jeonbuk 54538, Republic of Korea

Correspondence should be addressed to Min Cheol Joo; ten.muad@77cmj

Received 21 July 2017; Accepted 3 October 2017; Published 26 October 2017

Academic Editor: Antonio Salgado

Copyright © 2017 Eun Sun Lee and Min Cheol Joo. 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.


Objective. To investigate the prevalence of autonomic dysreflexia (AD) using ambulatory blood pressure monitoring (ABPM) and the autonomic dysfunction following spinal cord injury (ADFSCI) questionnaire in patients with spinal cord injury (SCI) above T6. Methods. Twenty-eight patients diagnosed with SCI above T6 were enrolled. ABPM and ADFSCI were utilized to assess AD. Using ABPM, systolic blood pressure (SBP), diastolic blood pressure, and heart rate (HR) were measured at 30-minute intervals. AD was defined as SBP 20 mmHg higher than basal SBP, and the number of AD events was counted. The ADFSCI questionnaire evaluates the severity and frequency of the AD symptoms. Results. According to the ABPM, AD occurred in 26 patients and AD events occurred times. Average daytime and nighttime SBP were  mmHg and  mmHg, respectively, and the nighttime mean SBP appeared to be 4 mmHg higher than daytime mean SBP. These findings suggest the loss of nocturnal BP dipping in SCI patients. ADFSCI results revealed that 16 of the patients evaluated were symptomatic while 12 were asymptomatic. Conclusion. AD following SCI above T6 was highly prevalent and several patients seemed asymptomatic. These results suggest the necessity of proper diagnostic and therapeutic interventions for managing AD.