Table 1

Baseline Demographic Data and Medical Histories of 2,394 Patients Receiving CABGlegend

CharacteristicPatients Who Died During 6-Month Follow-Up (n = 131)Patients Who Survived 6-Month Follow-Up (n = 2263)p Value
Age (yr)68.068.00.30
Gender
 Male86 (65.6%)1,582 (69.9%)0.35
 Female45 (34.4%)681 (30.1%)
Race
 White122 (93.1%)2,129 (94.1%)
 Black6 (4.6%)89 (3.9%)0.90
 Asian2 (1.5%)22 (1.0%)
 Multiracial1 (0.8%)22 (1.0%)
BMI(kg/m2)27.227.60.64
Ejection fraction
 <35%36 (39.6%)245 (16.0%)<0.0001
 ≥35%55 (60.4%)1,289 (84.0%)
Myocardial infarction90 (68.7%)1,241 (54.8%)<0.01
Congestive heart failure43 (32.8%)332 (14.7%)<0.0001
Cerebrovascular disease35 (26.7%)328 (14.5%)<0.0001
Peripheral vascular disease42 (32.1%)376 (16.6%)<0.0001
Cardiac arrhythmias48 (36.6%)447 (19.8%)<0.0001
Insulin-dependent diabetes mellitus25 (19.1%)263 (11.6%)<0.05
Non–insulin-dependent diabetes mellitus36 (27.5%)651 (28.8%)0.83
Diabetes, type not specified4 (3.1%)27 (1.2%)0.15
Previous PTCA48 (36.6%)1,018 (45.0%)0.16
Previous CABG50 (38.2%)928 (41.0%)0.58
Method of cardioplegia delivery (not mutually exclusive)
 Anterograde104 (84.6%)1,944 (89.0%)0.17
 Retrograde38 (30.9%)984 (45.0%)<0.01
 Intermittent cross-clamp32 (26.0%)330 (15.1%)<0.01
Type of cardioplegic solution (not mutually exclusive)
 Blood86 (72.3%)1,465 (68.4%)0.43
 Crystalloid55 (46.2%)1,160 (54.2%)0.11
 Other11 (9.2%)152 (7.1%)0.48
Cardioplegia solution temperature (not mutually exclusive)
 Cold100 (87.0%)1,956 (91.7%)0.11
 Warm34 (29.6%)571 (26.8%)0.58
Duration of cardiopulmonary bypass (min)10594<0.001
Total surgical time (min)295266<0.001
Peak CK-MB values (U/l)36.017.5<0.0001
Peak CK-MB ratio7.23.5<0.0001
Duration of follow-up (days)22.0191.0<0.0001
  • Race was unknown for one patient who survived;

  • body mass index (BMI) was unknown for three patients who survived;

  • ejection fraction was unknown for 40 patients who died and for 729 patients who survived. Data are presented as the median value or number (%) of patients.

  • legend CABG = coronary artery bypass graft surgery; CK-MB = creatine kinase-myocardial band isoenzymes; PTCA = percutaneous transluminal coronary angioplasty.