Table 3

Periprocedural characteristics

IABP
(N=54)
Impella
(N=62)
P value
LVEF34(30-39)28(20-35)0.01
SAPS II60(48-74)68(47-79)0.16
Lactate, mg/dL49(23-77)60(32-95)0.09
Creatinine, mg/dL1.37 (1.08–1.89)1.39 (1.14–1.75)0.93
pH7.22 (7.12–7.36)7.25 (7.12–7.35)0.59
Haemoglobin, g/dL13.7 (11.8–14.6)13.5 (12.1–14.3)0.86
Glucose, mg/dL302 (226–407)340 (261–429)0.18
CK-max., U/L1330 ([473–4626)2822 (887–6355)0.04
CK-MB max., U/L221 (68–544)336 (109–680)0.19
Pre-PCI time, min121 (60–196)111 (71–262)0.42
Pre-device time, min121 (82–228)144(107–364)0.17
Device implantation before stenting29 (54)34 (55)1.00
TIMI flow at baseline
 TIMI 034 (63)41 (66)0.85
 TIMI I12 (22)17 (27)0.17
 TIMI II8 (15)4 (6.5)0.22
TIMI III flow after primary PCI*31 (60)47 (77)0.07
  • Data depicted as median (IQR) or counts (%). P values are from Wilcoxon rank sum test or Fischer test.

  • *Data on TIMI III flow after PCI were not retrievable for two patients in the IABP and one patient in the Impella group.

  • CK-MB, Creatine kinase isoform MB; CK-max, maximal creatine kinase; CPR, cardiopulmonary resuscitation; LVEF, left ventricular ejection fraction; SAPS II, Simplified Acute Physiology Score II; TIMI, thrombolysis in myocardial infarction.