Previously submitted to: JMIR Research Protocols (no longer under consideration since Dec 29, 2021)
Date Submitted: Jul 4, 2020
Open Peer Review Period: Jul 4, 2020 - Jul 10, 2020
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Telemonitoring and mobile follow-up strategy supported by self-assessment of blood pressure with wrist sphygmomanometer in primary health care establishments to control patients with cardiovascular diseases in COVID 19 pandemic context
ABSTRACT
A randomized control study was designed with the objective to improve blood pressure control in people with cardiovascular disease. The intervention will be carried out in three modalities: one through self-monitoring of the patient after the delivery of a wrist blood pressure recording machine; another, fully automated modality, in which patients receive educational information and reminders through their smartphone, mediated by the Red Cap / Twilio platform; and finally, an instance of doubts resolution and follow-up to be carried out through telephone calls between nursing staff and patients through the Twilio platform. It is an open study, in which patients with cardiovascular disease who are treated at the El Roble family health center, Santiago de Chile, will be recruited via web-based. Outcomes will be evaluated through the calculation of weekly average blood pressure, in addition to self-assessed surveys that seek to determine an improvement in treatment adherence, knowledge of stroke and cardiovascular disease including recognition of stroke and myocardial infarction alarm symptoms and the level of self-efficacy of the patient. A total of 126 patients were recruited, divided in a 1 to 1 ratio between the control and intervention groups. Our main objective is through this sample size to discriminate a decrease of 3 mmHg in systolic blood pressure between both groups with a confidence interval of 95% (95% CI) between the 2 groups, 80% power and 5% statistical error.
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