STS National Database
STS CANADIAN CARDIAC SURGERY DATABASE
1997 CAB + AORTIC VALVE REPLACEMENT PATIENTS
UNIVARIATE ANALYSIS: POSTOPERATIVE COMPLICATIONS
PATIENT POPULATION:
OPERATIVE SURVIVORS:
OPERATIVE MORTALITIES:		 236
219 ( 92.80% )
17 ( 7.20% )
RISK VARIABLE Count % of Pop. Mortality w/ Variable Present Mortality w/ Variable Absent Relative Risk c2 p-Value
 
Operative  
Reop/Bleeding 9 3.81% 2/9 22.22% 15/227 6.61% 3.36 0.0756
Reop/Valve Dysfunction 1 0.42% 0/1 0.00% 17/235 7.23% 0.00 0.7801
Reop/Graft Occlusion 0       17/236 7.20%    
Reop/Other Cardiac 8 3.39% 0/8 0.00% 17/228 7.46% 0.00 0.4227
Reop/Non Cardiac 9 3.81% 5/9 55.56% 12/227 5.29% 10.51 0.0000
Perioperative MI 5 2.12% 2/5 40.00% 15/231 6.49% 6.16 0.0041
Infection  
Sternum-Superficial 2 0.85% 0/2 0.00% 17/234 7.26% 0.00 0.6923
Sternum-Deep 2 0.85% 1/2 50.00% 16/234 6.84% 7.31 0.0187
Leg 10 4.24% 0/10 0.00% 17/226 7.52% 0.00 0.3679
IABP Site 0       17/236 7.20%    
Septicemia 5 2.12% 3/5 60.00% 14/231 6.06% 9.90 0.0000
Urinary Tract Infection 19 8.05% 3/19 15.79% 14/217 6.45% 2.45 0.1311
Neurologic  
Stroke-Permanent 7 2.97% 3/7 42.86% 14/229 6.11% 7.01 0.0002
Stroke-Transient 6 2.54% 0/6 0.00% 17/230 7.39% 0.00 0.4894
Delirium 30 12.71% 0/30 0.00% 17/206 8.25% 0.00 0.1024
Continuous Coma > 24 Hrs 2 0.85% 1/2 50.00% 16/234 6.84% 7.31 0.0187
Pulmonary  
Ventilation > 1 Day 22 9.32% 3/22 13.64% 14/214 6.54% 2.08 0.2204
Pulmonary Embolism 0       17/236 7.20%    
Pulmonary Edema 12 5.08% 5/12 41.67% 12/224 5.36% 7.78 0.0000
ARDS 2 0.85% 0/2 0.00% 17/234 7.26% 0.00 0.6923
Pneumonia 9 3.81% 5/9 55.56% 12/227 5.29% 10.51 0.0000
Renal  
Renal Failure 28 11.86% 7/28 25.00% 10/208 4.81% 5.20 0.0001
Dialysis Required 3 1.27% 3/3 100.00% 14/233 6.01% 16.64 0.0000
Valvular  
Structural Deterioration 1 0.42% 0/1 0.00% 17/235 7.23% 0.00 0.7801
NonStructural Dysfunction 1 0.42% 0/1 0.00% 17/235 7.23% 0.00 0.7801
Thromboembolism 0       17/236 7.20%    
Valve Thrombus 0       17/236 7.20%    
Anticoagulant Complication 1 0.42% 1/1 100.00% 16/235 6.81% 14.69 0.0003
Prosthetic Valve SBE 0       17/236 7.20%    

© 1999 The Society of Thoracic Surgeons.