Impact of routine percutaneous coronary intervention after out-of-hospital cardiac arrest due to ventricular fibrillation

Table 3 Between-group differences in surviving and deceased patients^a

Characteristics	Surviving (n= 60)	Deceased (n= 51)	P value
Males, n (%)	47 (78)	40 (78)	0.83
Age, yr	56 [46 to 67]	61 [50 to 74]	0.07
SAPS II	56 [48 to 64]	63 [58 to 74]	0.0005
Duration of no-flow, minutes	4 [1 to 10]	7 [1 to 10]	0.1
Time to ROSC, minutes	20 [15 to 35]	40 [27 to 56]	0.00005
Epinephrine dose, mg	0 [0 to 4]	5 [1 to 10]	0.005
Location of cardiac arrest			0.44
Home	21 (36)	22 (44)
Workplace	12 (20)	6 (12)
Public place	27 (45)	23 (45)
Coronary angiography	54 (90)	37 (73)	0.03
PCI	29 (48)	17 (33)	0.15
MTH	46 (77)	32 (63)	0.16
Glasgow Coma Scale score	3 [3 to 4]	3 [3 to 3]	0.07
SAP, mmHg	129 [114 to 148]	121 [105 to 146]	0.21
Heart rate, beats/min	91 [78 to 104]	88 [74 to 108]	0.9
PaO₂/FiO₂ ratio, mmHg	258 [194 to 340]	241 [127 to 328]	0.13
Creatinine, μmol/L	102 [83 to 120]	118 [98 to 147]	0.02
Base deficit, mmol/L	4.9 [2.1 to 9]	7.2 [3.9 to 11.6]	0.18

^aSAPS II: Simplified Acute Physiology Score II; ROSC: return of spontaneous circulation; epinephrine dose: cumulative dose of epinephrine required during initial resuscitation; PCI: percutaneous coronary intervention; MTH: mild therapeutic hypothermia; SAP: systolic arterial pressure; PaO₂/FiO₂ ratio, ratio of partial pressure of arterial oxygen to the fraction of inspired oxygen. Numbers between brackets are percentages or 25th to 75th percentiles.

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