AI Article Synopsis
- A new blood pressure monitor called KOROT V2 Doctor was developed, integrating an electronic stethoscope to record and visually display Korotkoff sounds during BP measurement.
- The device was tested on 85 individuals, with results showing that its BP readings closely matched reference measurements, satisfying the accuracy standards set by multiple medical organizations.
- The KOROT V2 Doctor meets the necessary criteria for professional use and is recommended for clinical applications.
Article Abstract
Objective: A novel automated auscultatory upper arm cuff blood pressure (BP) monitor KOROT V2 Doctor (InBody BPBIO280KV) was developed for professional use. An electronic stethoscope embedded in the device cuff records the Korotkoff sounds, which are graphically displayed during deflation allowing visual evaluation by the healthcare professional. The device provides automated measurements of BP and this study evaluated its accuracy.
Methods: The requirements of the Association for the Advancement of Medical Instrumentation/European Society of Hypertension/International Organization for Standardization (AAMI/ESH/ISO) Universal Standard (ISO 81060-2:2018) and its Amendment 1.2020-01 were applied. Participants were recruited to fulfill the age, sex, BP, arm circumference, and cuff distribution criteria of the Universal Standard and its Amendment in a general population using the same arm sequential measurement method. Three cuffs of the test device were tested for arm circumference 23-28, 28-35, and 33-42 cm.
Results: Data from 85 individuals were analyzed [mean age: 56.4 ± 16.0 (SD) years, 50 men, arm circumference 23-42 cm]. For validation Criterion 1, the mean difference ±SD between the test device and reference BP readings (N = 255) was -1.3 ± 6.0/1.5 ± 5.0 mmHg (systolic/diastolic; threshold ≤5 ± 8 mmHg). For Criterion 2, the SD of the averaged BP differences per individual (N = 85) was 4.61/3.48 mmHg (systolic/diastolic; threshold ≤6.82/6.78 mmHg).
Conclusion: The KOROT V2 Doctor (InBody BPBIO280KV) device for professional use, which provides automated auscultatory measurements with visual display of the Korotkoff sounds, comfortably fulfills all the requirements of the AAMI/ESH/ISO Universal Standard (ISO 81060-2:2018) in a general population and can be recommended for clinical use.
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