Key result
Auscl-D digital sphygmomanometer shows good agreement with aneroid and oscillometric devices for BP measurement.
Why the study?
Current blood pressure measuring sphygmomanometers suffer from poor reliability, performance deterioration over time, or failure to meet environmental protection protocols.
Does the Auscl-D digital auscultatory sphygmomanometer provide accurate blood pressure measurements compared to aneroid and oscillometric sphygmomanometers?
Does the Auscl-D digital auscultatory sphygmomanometer provide accurate blood pressure measurements compared to aneroid and oscillometric sphygmomanometers?
The Auscl-D mercury-free digital auscultatory sphygmomanometer provides accurate blood pressure measurements comparable to standard aneroid and oscillometric devices.
Supports Auscl-D as mercury-free option; leaves open larger validation before routine adoption.
More than quarter of world's population is consumed by hypertension, leading to premature death of thousands of people per year across the globe. One of the major reasons behind hypertension misdiagnosis is inaccurate blood pressure (BP) measurements, which can be attributed to various human or instrumentation errors. Currently used BP measuring sphygmomanometers, suffers from poor reliability, performance deterioration over time or are unable to meet environmental protection protocols. In this article, we propose a low-cost, highly portable, light-weight, easily manufacturable, battery operated, mercury free, auscultation based digital sphygmomanometer - Auscl-D, for easy and accurate BP measurements. The proposed device can be made from easily available components with cheap manufacturing processes available throughout globe, even in remote areas. The device demonstrated to have accuracy comparable to mercury sphygmomanometer, which is the gold-standard for BP measurements. The preliminary clinical trials were conducted at Dayanand Medical College & Hospital (DMCH) (Ludhiana, India), to compare the performance of proposed device with commonly used aneroid sphygmomanometers employing the auscultatory method and validated oscillometric sphygmomanometers from MicroLife. The test results show good agreement for systolic and diastolic BP measurements taken using Auscl-D device compared to the aneroid and oscillometric types. This shows the potential of proposed design to serve as low-cost, highly portable replacement for conventionally used sphygmomanometers, without the toxicity and reliability issues.
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Kumar et al. (2021) studied Hypertension. Auscl-D digital auscultatory sphygmomanometer vs. Aneroid and oscillometric sphygmomanometers was evaluated on Systolic and diastolic blood pressure measurements. The Auscl-D digital auscultatory sphygmomanometer demonstrated good agreement for systolic and diastolic blood pressure measurements compared to aneroid and oscillometric devices.
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