Research Article

Atrial Arrhythmias in Patients with Severe COVID-19

Table 5

Arrhythmias, cardiomyocyte injury markers, and death between <65-year-old and ≥65-year-old patients with COVID-19.

Variable<65-year-old (N = 48)≥65-year-old (N = 36) value

Male/female (n)25/2319/170.95
Age (years)52.30 ± 9.1074.60 ± 7.20<0.01
Total heart rate (beats/24 hrs)6146624.13 (3979387.20, 9102121.30)3788754.79 (2126971.80, 7602033.70)0.94
Maximum heart rate (bpm)133.70 ± 15.90123.90 ± 26.600.12
Minimum heart rate (bpm)59.20 ± 8.1056.10 ± 13.000.39
Mean heart rate (bpm)83.00 ± 8.8080.60 ± 12.800.59
PAC (beats/24 hrs)210.80 (30.30, 1131.50)1717.50 (207.70, 52761.20)0.12
NSAT (n/24 hrs)0 (0, 20.00)42.7 (0, 800.10)0.21
AF (n)1 (2.10)3(8.30)0.31
PVC (beats/24 hrs)48 (0, 555.10)1195.50 (45.30, 5012.50)0.71
NSVT (n/24 hrs)0 (0, 0)0 (0, 0)0.42
AVB (n/24 hrs)03 (8.30)0.08
CKMB (ng/mL)0.90 (0.60, 1.40)1.50 (0.90, 3.60)<0.01
hscTnI (ng/mL)0.01(0.01, 0.01)0.01 (0.01, 0.02)<0.01
Myoglobin (ng/mL)5.00 (3.40, 12.20)8.3 (6.80, 53.10)0.11
Death (n)2 (4.20)5 (13.90)0.13

Data are expressed as mean (SD) or median (IQR) for continuous variables and number (%) for categorical variables. AF, atrial fibrillation; AVB, atrioventricular block; CKMB, creatine kinase isoenzyme; COVID-19, novel coronavirus disease 2019; hscTnI, high-sensitive cardiac troponin I; PAC, premature atrial contracts; PVC, premature ventricular contracts; NSAT, nonsustained atrial tachycardia; NSVT, nonsustained ventricular tachycardia.