O uso de relógios inteligentes na aferição de frequência cardíaca de pacientes internados com diagnóstico de hipertensão arterial sistêmica com Covid-19

Abstract

Wearable technologies become an important topic in the field of health technology for the monitoring and storage of health-related data. Pulse oximetry is the most used wearable in the continuous monitoring of vital signs. However, smart watches have been occupying a space in the portion of the population that practice physical activities with the aim of monitoring heart rate (HR) during their practice. Thus, this study infers about the use of smart watches as an instrument for measuring HR in hospitalized patients diagnosed with systemic arterial hypertension affected by covid-19. For this purpose, HR collection was carried out in 30 patients aged between 40 and 80 years old from male and female internships at Hospital de Campanha in Bacabal/MA, using a digital watch (Fitbit, charge HR) and a finger oximeter as a reference value. The devices (watch and oximeter) were placed on the left arm wrist and on the left index finger simultaneously during 30 minutes of evaluation in the patients. In addition to the HR collected by the devices, other vital signs were observed, such as blood pressure (sphygmomanometer), oxygen saturation (finger oximeter) and respiratory rate by analyzing the electrodes placed on the patients. ANOVA analyzes of variance were performed followed by Tukey's Comparison post-test and Pearson's correlation test with the aid of the GraphPadPrism version 7.0 software (GraphPad Software, San Diego, CA, USA). The results indicated that they were patients with a mean age for the male gender of 65.00 ± 15.39 years and for the female gender of 65.91 ± 23.06 years, with a respiratory rate per minute of 20.47 ± 0.5679 and 20.6 ± 0.3754 for males and females respectively, in addition to a similarity of 83.3% in HR measurements performed with the watch (84.9 ± 4.29 bpm) in relation to those with the oximeter (88.2 ± 3.75 bpm) with a Pearson correlation for r = 0.71. It can be concluded that the smart watch can be another instrument to be taken into account during the evaluation of vital signs with the same efficiency as that verified by the oximeter.