2023-04-28 ハーバード大学
世界の人口の約90%が携帯電話を所有しているため、このような普及技術を医療ニーズに合わせて適応することは、先進医療に限定されたコミュニティに現実的な影響を与える可能性がある。
Biospectalは、WHOと協力してバングラデシュ、インドネシア、南アフリカ、タンザニアのコミュニティで研究を実施し、OptiBPの妊婦や一般人口における正確性を示した。
<関連情報>
- https://seas.harvard.edu/news/2023/04/blood-pressure-monitor-your-pocket
- https://www.nature.com/articles/s41746-023-00804-z
バングラデシュ、南アフリカ、タンザニアにおけるスマートフォン用血圧推定アプリケーションの精度について Accuracy of a smartphone application for blood pressure estimation in Bangladesh, South Africa, and Tanzania
Charles Festo,Valerie Vannevel,Hasmot Ali,Tigest Tamrat,Getrud J. Mollel,Tsakane Hlongwane,Kaniz A. Fahmida,Kelsey Alland,María Barreix,Hedieh Mehrtash,Ronaldo Silva,Soe Soe Thwin,Garrett Mehl,Alain B. Labrique,Honorati Masanja & Ӧzge Tunçalp
npj Digital Medicine Published:17 April 2023
DOI:https://doi.org/10.1038/s41746-023-00804-z
Abstract
Undetected and unmonitored hypertension carries substantial mortality and morbidity, especially during pregnancy. We assessed the accuracy of OptiBPTM, a smartphone application for estimating blood pressure (BP), across diverse settings. The study was conducted in community settings: Gaibandha, Bangladesh and Ifakara, Tanzania for general populations, and Kalafong Provincial Tertiary Hospital, South Africa for pregnant populations. Based on guidance from the International Organization for Standardization (ISO) 81,060–2:2018 for non-invasive BP devices and global consensus statement, we compared BP measurements taken by two independent trained nurses on a standard auscultatory cuff to the BP measurements taken by a research version of OptiBPTM called CamBP. For ISO criterion 1, the mean error was 0.5 ± 5.8 mm Hg for the systolic blood pressure (SBP) and 0.1 ± 3.9 mmHg for the diastolic blood pressure (DBP) in South Africa; 0.8 ± 7.0 mmHg for the SBP and -0.4 ± 4.0 mmHg for the DBP in Tanzania; 3.3 ± 7.4 mmHg for the SBP and -0.4 ± 4.3 mmHg for the DBP in Bangladesh. For ISO criterion 2, the average standard deviation of the mean error per subject was 4.9 mmHg for the SBP and 3.4 mmHg for the DBP in South Africa; 6.3 mmHg for the SBP and 3.6 mmHg for the DBP in Tanzania; 6.4 mmHg for the SBP and 3.8 mmHg for the DBP in Bangladesh. OptiBPTM demonstrated accuracy against ISO standards in study populations, including pregnant populations, except in Bangladesh for SBP (criterion 2). Further research is needed to improve performance across different populations and integration within health systems.
