Table 1

Baseline Characteristics

Overall (N = 1,116)Normal RV Function (n = 791)RV Dysfunction (n = 325)p Value
Age, yrs82.1 ± 6.082.5 ± 5.581.3 ± 7.10.002
Female570 (51.1)429 (54.2)141 (43.4)0.001
Body mass index, kg/m226.3 ± 5.226.7 ± 5.425.4 ± 4.6<0.001
Cardiac risk factors
 Diabetes mellitus287 (25.7)193 (24.4)94 (28.9)0.13
 Hypercholesterolemia718 (64.3)512 (64.7)206 (63.4)0.68
 Hypertension941 (84.3)674 (85.2)267 (82.2)0.21
 Current smoker51 (10.5)36 (10.7)15 (10.1)0.87
Past medical history
 Previous myocardial infarction175 (15.7)105 (13.3)70 (21.5)0.001
 Previous PCI298 (26.7)203 (25.7)95 (29.2)0.23
 Previous CABG130 (12.1)71 (9.3)59 (19.4)<0.001
 Previous stroke or TIA124 (11.1)88 (11.1)36 (11.1)1.00
 Peripheral vascular disease179 (16.0)123 (15.5)56 (17.2)0.53
 Chronic obstructive pulmonary disease151 (13.6)102 (12.9)49 (15.1)0.34
 Renal failure (eGFR <60 ml/min/1.73 m2)791 (70.9)544 (68.8)247 (76.2)0.01
Baseline cardiac rhythm
 Atrial fibrillation387 (34.7)232 (29.3)155 (47.7)<0.001
 Permanent pacemaker108 (9.7)66 (8.3)42 (12.9)0.03
Symptoms
 NYHA functional class III or IV753 (67.6)506 (64.1)247 (76.2)<0.001
 CCS III or IV109 (9.8)72 (9.1)37 (11.4)0.27
 Syncope145 (13.0)98 (12.4)47 (14.5)0.38
Risk assessment
 Logistic EuroSCORE, %20.8 ± 13.518.7 ± 12.525.7 ± 14.6<0.001
 STS score, %6.1 ± 4.25.6 ± 3.97.2 ± 4.7<0.001
Laboratory values
 Brain natriuretic peptide, pg/ml706.8 ± 976.5522.4 ± 704.51,165.0 ± 1,342.2<0.001

Values are mean ± SD or n (%). p values are from Student t tests (continuous variables) or Fisher exact test (2 × 2 comparisons).

CABG = coronary artery bypass grafting; CCS = Canadian Cardiovascular Society; NYHA = New York Heart Association; PCI = percutaneous coronary intervention; RV = right ventricle; STS = Society of Thoracic Surgeons; TIA = transient ischemic attack.