STS National Database
STS CANADIAN CARDIAC SURGERY DATABASE
1997 CAB + MITRAL VALVE REPLACEMENT PATIENTS
UNIVARIATE ANALYSIS: POSTOPERATIVE COMPLICATIONS
PATIENT POPULATION:
OPERATIVE SURVIVORS:
OPERATIVE MORTALITIES:		 67
57 (85.07% )
10 ( 14.93% )
RISK VARIABLE Count % of Pop. Mortality w/ Variable Present Mortality w/ Variable Absent Relative Risk c2 p-Value
 
Operative  
Reop/Bleeding 2 2.99% 0/2 0.00% 10/65 15.38% 0.00 0.5476
Reop/Valve Dysfunction 0       10/67 14.93%    
Reop/Graft Occlusion 0       10/67 14.93%    
Reop/Other Cardiac 2 2.99% 0/2 0.00% 10/65 15.38% 0.00 0.5476
Reop/Non Cardiac 9 13.43% 2/9 22.22% 8/58 13.79% 1.61 0.5091
Perioperative MI 1 1.49% 1/1 100.00% 9/66 13.64% 7.33 0.0162
Infection  
Sternum-Superficial 2 2.99% 1/2 50.00% 9/65 13.85% 3.61 0.1576
Sternum-Deep 1 1.49% 0/1 0.00% 10/66 15.15% 0.00 0.6730
Leg 2 2.99% 0/2 0.00% 10/65 15.38% 0.00 0.5476
IABP Site 0       10/67 14.93%    
Septicemia 2 2.99% 1/2 50.00% 9/65 13.85% 3.61 0.1576
Urinary Tract Infection 7 10.45% 0/7 0.00% 10/60 16.67% 0.00 0.2416
Neurologic  
Stroke-Permanent 2 2.99% 1/2 50.00% 9/65 13.85% 3.61 0.1576
Stroke-Transient 0       10/67 14.93%    
Delirium 7 10.45% 0/7 0.00% 10/60 16.67% 0.00 0.2416
Continuous Coma > 24 Hrs 2 2.99% 1/2 50.00% 9/65 13.85% 3.61 0.1576
Pulmonary  
Ventilation > 1 Day 16 23.88% 3/16 18.75% 7/51 13.73% 1.37 0.6227
Pulmonary Embolism 1 1.49% 1/1 100.00% 9/66 13.64% 7.33 0.0162
Pulmonary Edema 9 13.43% 2/9 22.22% 8/58 13.79% 1.61 0.5091
ARDS 3 4.48% 0/3 0.00% 10/64 15.63% 0.00 0.4579
Pneumonia 4 5.97% 1/4 25.00% 9/63 14.29% 1.75 0.5598
Renal  
Renal Failure 11 16.42% 3/11 27.27% 7/56 12.50% 2.18 0.2087
Dialysis Required 2 2.99% 1/2 50.00% 9/65 13.85% 3.61 0.1576
Valvular  
Structural Deterioration 0       10/67 14.93%    
NonStructural Dysfunction 0       10/67
© 1999 The Society of Thoracic Surgeons.