STS National Database
STS CANADIAN CARDIAC SURGERY DATABASE
1997 MITRAL VALVE REPLACEMENT PATIENTS
UNIVARIATE ANALYSIS: POSTOPERATIVE COMPLICATIONS
PATIENT POPULATION:
OPERATIVE SURVIVORS:
OPERATIVE MORTALITIES:		 171
164 ( 95.91% )
7 ( 4.09% )
RISK VARIABLE Count % of Pop. Mortality w/ Variable Present Mortality w/ Variable Absent Relative Risk c2 p-Value
 
Operative  
Reop/Bleeding 8 4.68% 0/8 0.00% 7/163 4.29% 0.00 0.5495
Reop/Valve Dysfunction 0       7/171 4.09%    
Reop/Graft Occlusion 0       7/171 4.09%    
Reop/Other Cardiac 4 2.34% 0/4 0.00% 7/167 4.19% 0.00 0.6759
Reop/Non Cardiac 10 5.85% 3/10 30.00% 4/161 2.48% 12.08 0.0000
Perioperative MI 0       7/171 4.09%    
Infection  
Sternum-Superficial 3 1.75% 0/3 0.00% 7/168 4.17% 0.00 0.7181
Sternum-Deep 3 1.75% 2/3 66.67% 5/168 2.98% 22.40 0.0000
Leg 0       7/171 4.09%    
IABP Site 0       7/171 4.09%    
Septicemia 3 1.75% 2/3 66.67% 5/168 2.98% 22.40 0.0000
Urinary Tract Infection 17 9.94% 2/17 11.76% 5/154 3.25% 3.62 0.0926
Neurologic  
Stroke-Permanent 3 1.75% 2/3 66.67% 5/168 2.98% 22.40 0.0000
Stroke-Transient 0       7/171 4.09%    
Delirium 7 4.09% 0/7 0.00% 7/164 4.27% 0.00 0.5767
Continuous Coma > 24 Hrs 5 2.92% 3/5 60.00% 4/166 2.41% 24.90 0.0000
Pulmonary  
Ventilation > 1 Day 17 9.94% 4/17 23.53% 3/154 1.95% 12.08 0.0000
Pulmonary Embolism 1 0.58% 0/1 0.00% 7/170 4.12% 0.00 0.8358
Pulmonary Edema 15 8.77% 3/15 20.00% 4/156 2.56% 7.80 0.0011
ARDS 3 1.75% 0/3 0.00% 7/168 4.17% 0.00 0.7181
Pneumonia 12 7.02% 2/12 16.67% 5/159 3.14% 5.30 0.0226
Renal  
Renal Failure 9 5.26% 2/9 22.22% 5/162 3.09% 7.20 0.0048
Dialysis Required 1 0.58% 1/1 100.00% 6/170 3.53% 28.33 0.0000
Valvular  
Structural Deterioration 0       7/171 4.09%    
NonStructural Dysfunction 2 1.17% 2/2 100.00% 5/169 2.96% 33.80 0.0000
Thromboembolism 0       7/171 4.09%    
Valve Thrombus 0       7/171 4.09%    
Anticoagulant Complication 0       7/171 4.09%    
Prosthetic Valve SBE 0       7/171 4.09%    
Vascular  
Aortic Dissection 1 0.58% 1/1 100.00% 6/170 3.53% 28.33 0.0000
Iliac/Femoral Dissection
© 1999 The Society of Thoracic Surgeons.