Background Coronavirus infection is the cause of the current world-wide pandemic. Cardiovascular complications occur in 20–30% of patients with COVID-19 infection including myocardial injury and arrhythmias. Current understanding of specific arrhythmia type and frequency is limited. Objective We aimed to analyze arrhythmia type and frequency in patients with COVID infection, identifying arrhythmia patterns over time during hospitalization and post discharge utilizing a patch based mobile cardiac telemetry system. Methods A prospective cohort study during the COVID-19 pandemic was performed. We included in our study patients hospitalized with COVID-19 infection who had a patch-based mobile telemetry device placed for cardiac monitoring. Results Quantitative reports for 59 patients were available for analysis. Arrhythmias were detected in 72.9% of patients and at a consistent frequency throughout the monitoring period in 52.9%–89.5% of patients daily. The majority of arrhythmias were SVT (59.3% of patients) and AF (22.0%). New onset AF was noted in 15.0% of all patients and was significantly associated with older age (OR 1.4 for 5 yrs. difference; 95% CI 1.03–2.13). Of 9 patients who were discharged with continued patch monitoring, 7 (78%) had arrhythmic events during their outpatient monitoring period. Conclusion In COVID-19 patients arrhythmias were observed throughout hospitalization with a consistent daily frequency. Patients continued to exhibit cardiac arrhythmias after hospital discharge of a type and frequency similar to that seen during hospitalization. These findings suggest that the risk of arrhythmia associated with COVID infection remains elevated throughout the hospital course as well as following hospital discharge.
Background Coronavirus infection (COVID-19) is the cause of the current world-wide pandemic. Cardiovascular complications occur in 20–30% of patients with COVID-19 infection including myocardial injury and arrhythmias. Current understanding of specific arrhythmia type and frequency is limited. In response to COVID-19 pandemic and overwhelmed hospital critical care and telemetry recourses, patch-based cardiac monitoring system received emergency Food and Drug Administration (FDA) approval for inpatient monitoring. A patch-based cardiac telemetry system has been shown to be useful for patient management during the COVID-19 pandemic and provides detailed analysis of cardiac rhythms. Purpose To analyze arrhythmia type and frequency in patients with COVID-19 infection, identifying arrhythmia patterns over time during hospitalization and after discharge. Methods A prospective cohort study during the COVID-19 pandemic was performed. We included patients hospitalized with COVID-19 infection who had a patch-based mobile telemetry device placed for cardiac monitoring. A quantitative analysis including type, frequency and duration of detected arrhythmias was performed at the end of the monitoring period. Results A total of 103 patients hospitalized with COVID-19 diagnosis underwent monitoring. Quantitative reports for 59 patients were available for analysis, among those 59% were males, median age 65 (IQR 56–76) yrs. Mean wear time was 6.8±5.0 days. Arrhythmias were detected in 72.9% of patients. Majority of arrhythmias were SVT (59.3% of patients) and AF (22.0%). Episodes of AF duration >30 min were detected in 12 patients. New onset AF was noted in 15.0% of patients and was significantly associated with age (OR 1.4 for 5 yrs difference; 95% CI 1.01–2.05). Brady arrhythmias (2nd degree, 3rd degree AV bock, pause≥3 seconds) were seen in 18.7% of patients. Arrhythmias were consistently detected throughout the monitoring period in 52.9%-89.5% of patients daily (Figure 1). In 9 patients who were discharged with continued patch monitoring, 3 patients (33.3%) had arrhythmic events during their outpatient monitoring period. Conclusion A majority of patients hospitalized with COVID-19 infection had arrhythmias detected by patch cardiac monitor. Arrhythmias were observed throughout hospitalization with a consistent daily frequency. Patients continued to exhibit cardiac arrhythmias after hospital discharge of a type similar to that seen during hospitalization. New onset AF often occurred and was associated with older age. Inpatient application of a patch cardiac telemetry with continued monitoring as outpatient is feasible and effective in detecting occult arrhythmias in patients with COVID-19 infection. FUNDunding Acknowledgement Type of funding sources: None. Daily frequency of arrhythmias detected
Introduction: Prior to COVID-19, ECG patches (ECGp) were applied almost exclusively in-clinic (CA) by technicians which required an office visit and fee. Since the pandemic, direct-to-patient, self-applied patch use (SA) has substantially increased, though the metrics surrounding SA are unknown. This study compares monitoring completion rates and data quality between CA and SA ECGp prior to and during COVID-19. Hypothesis: CA and SA ECGp have similar data quality and monitoring completion metrics. Methods: We performed a retrospective cohort analysis of patients prescribed an iRhythm Zio XT patch at Northwestern Memorial Hospital during the “pre-COVID” (3/1/2019-3/1/2020) and “COVID” (4/1/2020-4/1/2021) timeframes. Differences in ECGp with data available, actual vs prescribed wear time, and analyzable data between groups were assessed. ECGp without data was defined as devices which were not returned or not activated. Results: The cohort included 29,118 ECGp prescriptions; 13,180 pre-COVID (45%). The cohort was 56% female with mean age of 59.3 + 17.7 years. Palpitations (29%) and atrial fibrillation (19%) were the most common indications. In the pre-COVID cohort, there were no (0%) SA ECGp and data were available for 12,932 CA patches. In the COVID cohort, 34% of ECGp were SA; data were available for 10,231 CA ECGp and 4,902 SA ECGp. Average delay between prescription and SA ECGp activation was 8.1 ± 12.2 days. Comparisons between percent analyzable data, wear times, and ECGp with data available are shown in figure 1. Conclusions: COVID-19 resulted in a rapid adoption of SA ECGp use. Compared to CA, SA was associated with an inherent delay in ECGp application and a higher proportion of ECGp without data. However, there was no difference in actual vs prescribed wear time and a small but statistically significant decrease in percent analyzable data. These differences must be balanced with the additional cost and need for in-person visit for CA vs SA.
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