Research Article

Relationship between the Plasma Levels of Catecholamines and Return of Spontaneous Circulation in Patients with Out-of-Hospital Cardiac Arrest

Table 1

Comparisons between the two groups.

ROSC (+) (n = 34)ROSC (–) (n = 62) value

Age (years)80.5 (68.3, 85.5)82.0 (72.3, 87.0)0.642
Male/female ratio21/1331/310.269
Bystander CPR20 (58.8%)28 (45.6%)0.200
ECG at arrival of emergency service<0.001
 VF80
 PEA1413
 Asystole1249
Prehospital resuscitation time (min)16.0 (12.3, 20.8)18.0 (15.0, 23.0)0.053
Frequency of prehospital defibrillation0 (0, 1)0 (0, 0)<0.001
Resuscitation time after arrival at the hospital (min)8.0 (0.8, 9.0)23.5 (15.3, 33.0)<0.001
Dosage of Ep after arrival at the hospital (mg)1.0 (0, 2.0)4.0 (3.0, 5.0)<0.001
Total resuscitation time (min)25.5 (19.3, 30.0)44.0 (33.0, 51.0)<0.001

Note. CPR: cardiopulmonary resuscitation, ECG: electrocardiogram, Ep: epinephrine, PEA: pulseless electrical activity, ROSC: return of spontaneous circulation, and VF: ventricular fibrillation. Data are shown as number or median (Q1, Q3). .