Cross Sectional Study of comparative analysis of Blood Pressure by Mercury, Digital and LED Sphygmomanometer among Medical Students of a Tertiary Care Teaching Hospital.
Journal Title: International Journal of Medical Science and Innovative Research (IJMSIR) - Year 2019, Vol 4, Issue 6
Abstract
Background: Globally there is a movement to discard mercury based equipment but various researchers have raised question on accuracy, validity, and consistency of non-mercury equipment. In India, there is lack of adequate data about young hypertensive patients and due to asymptomatic nature they are left undiagnosed. Objectives: This study was carried out to compare records of Digital and LED sphygmomanometer as compared to Mercury sphygmomanometer for diagnosis of Normotensive, Pre-hypertensive and Hypertensive cases in medical students. Methodology: A cross-sectional analytical study was conducted on medical students by measurement of blood pressure by Mercury, LED and Digital sphygmomanometer. Difference in Systolic, Diastolic, Pulse Pressure and Mean Arterial Pressure was statistically analyzed by one-way analysis of variance (ANOVA) and paired t test with comparison to global guideline. Result: As per “gold standard” mercury sphygmomanometer, out of total 252 participants, overall, 10 (3.96%) participants were diagnosed hypertensive. On the other hand, total 18 (7.14%) and 7(2.78%) participant were diagnosed as hypertensive by Digital and LED Sphygmomanometer as per Indian Guideline. Overall difference in pulse pressure, mean arterial pressure and diastolic BP was highly significant as per ANOVA test (P < 0.05). Conclusion: Considering variation in measurement of Blood Pressure, change in sphygmomanometer can be misleading while diagnosis of hypertension or monitoring of drug treatment response. In absence of other comparable equipment, mercury sphygmomanometer is still considered “Gold Standard”. Moreover, large scale comparative research is needed for validity of non-mercury equipment.
Authors and Affiliations
Dr. Chirag B. Mistry
Keywords
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