Survival in patients with peripheral vascular disease after percutaneous coronary intervention and coronary artery bypass graft surgery.
BACKGROUND
Patients with peripheral vascular disease (PVD) undergoing coronary revascularization have high rates of adverse outcomes. Whether there are important differences in outcomes for surgical versus percutaneous coronary revascularization is unknown. The objective of this study was to compare survival in patients with PVD who underwent percutaneous coronary intervention (PCI) or coronary artery bypass grafting (CABG) surgery for multivessel coronary artery disease.


METHODS
In-hospital data were collected on 1,305 consecutive patients undergoing coronary revascularization (PCI, n = 341; CABG, n = 964) in northern New England from 1994 to 1996. Patient records were linked to the National Death Index to assess survival out to 3 years (mean 1.2 years). Logistic and Cox proportional hazards regression were used to calculate risk-adjusted odds ratios and hazard ratios.


RESULTS
Compared with CABG patients, those undergoing PCI were more often women, had more renal failure, more prior coronary revascularizations, were more likely to have two-vessel coronary artery disease and were more likely to undergo the procedure emergently. They were less likely to have a history of heart failure. After adjusting for differences in baseline characteristics, patients undergoing CABG had better intermediate survival than did PCI patients (hazard ratio 0.68; 95% confidence interval, 0.46 to 1.00; p = 0.05).


CONCLUSIONS
Patients with multivessel coronary artery disease and PVD undergoing CABG surgery have better intermediate survival out to 3 years than similar patients undergoing PCI. This information may be useful in counseling patients with PVD requiring coronary revascularization.
Section of Cardiology, Veterans Affairs Hospital, Hartland Road, White River Junction, Vermont 05006, USA. daniel.o'rourke@hitchcock.org
Daniel J
DJ
O'Rourke
Hebe B
HB
Quinton
Winthrop
W
Piper
Felix
F
Hernandez
Jeremy
J
Morton
Bruce
B
Hettleman
Michael
M
Hearne
William
W
Nugent
Gerald T
GT
O'Connor
David J
DJ
Malenka
D000368:Aged; D015906:Angioplasty, Balloon, Coronary / Q000706:statistics & numerical data*; D001026:Coronary Artery Bypass / Q000706:statistics & numerical data*; D003327:Coronary Disease / Q000150:complications / Q000601:surgery / Q000628:therapy*; D017558:Elective Surgical Procedures / Q000706:statistics & numerical data; D004630:Emergencies / Q000453:epidemiology; D005260:Female; D017052:Hospital Mortality; D006801:Humans; D007676:Kidney Failure, Chronic / Q000150:complications / Q000401:mortality; D008297:Male; D008875:Middle Aged; D009511:New England / Q000453:epidemiology; D016491:Peripheral Vascular Diseases / Q000150:complications*; D011183:Postoperative Complications / Q000401:mortality*; D016016:Proportional Hazards Models; D012086:Reoperation / Q000706:statistics & numerical data; D012189:Retrospective Studies; D012306:Risk; D016019:Survival Analysis; D016896:Treatment Outcome