Table 1.
MCOT Urgent Alerts and QTc Measurement of the Study Cohort
| Urgent Alerts (n = 28) | |
|---|---|
| Atrial fibrillation with a rapid ventricular response | 15 (53.6) |
| QTc >500 ms | 5 (17.9) |
| First-degree atrioventricular block | 4 (14.3) |
| Nonsustained ventricular tachycardia | 2 (7.1) |
| Ventricular bigeminy | 1 (3.6) |
| Supraventricular tachycardia | 1 (3.6) |
| QTc Measurements | ||||
|---|---|---|---|---|
| QTc Parameters | Overall (N = 117) | HCQ (n = 66) | HCQ + AZM (n = 51) | p Value |
| Baseline QTc | 437.1 ± 22.2 | 438.0 ± 23.9 | 435.8 ± 19.9 | 0.591 |
| Maximal QTc | 450.0 ± 31.7 | 448.6 ± 33.7 | 451.9 ± 29.2 | 0.575 |
| Maximal QTc—baseline QTc | 12.9 ± 23.4 | 10.5 ± 20.8 | 16.1 ± 26.3 | 0.201 |
| Final QTc | 441.2 ± 28.7 | 440.0 ± 32.1 | 443.3 ± 23.6 | 0.54 |
| Final QTc—baseline QTc | 4.1 ± 23.4 | 2.0 ± 23.0 | 7.5 ± 23.2 | 0.201 |
Values are n (%) or mean ± SD.
AZM = azithromycin; HCQ = hydroxychloroquine; MCOT = Mobile Cardiac Outpatient Telemetry; QTc = corrected QT.