
STS NATIONAL CARDIAC SURGERY DATABASE
1996 CAB + MITRAL VALVE REPAIR PATIENTS
UNIVARIATE ANALYSIS: POST OPERATIVE COMPLICATIONS
PATIENT POPULATION: 1,529
OPERATIVE SURVIVORS: 1,393
OPERATIVE MORTALITIES: 136
RISK VARIABLE | Count | % of Pop. | Mortality w/Variable Present |
| Mortality w/Variable Absent |
| Relative Risk | c 2 p-Value |
Operative |
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Reop/Bleeding | 76 | 4.97% | 21/76 | 27.63% | 115/1,453 | 7.91% | 3.49 | 0.0000 |
Reop/Valve Dysfunction | 6 | 0.39% | 3/6 | 50.00% | 133/1,523 | 8.73% | 5.73 | 0.0004 |
Reop/Graft Occlusion | 2 | 0.13% | 0/2 | 0.00% | 136/1,527 | 8.91% | 0.00 | 0.6584 |
Reop/Other Cardiac | 34 | 2.22% | 5/34 | 14.71% | 131/1,495 | 8.76% | 1.68 | 0.2287 |
Reop/Non Cardiac | 71 | 4.64% | 26/71 | 36.62% | 110/1,458 | 7.54% | 4.85 | 0.0000 |
Perioperative MI | 19 | 1.24% | 6/19 | 31.58% | 130/1,510 | 8.61% | 3.67 | 0.0005 |
Infection |
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Sternum-Superficial | 12 | 0.78% | 1/12 | 8.33% | 135/1,517 | 8.90% | 0.94 | 0.9453 |
Sternum-Deep | 10 | 0.65% | 2/10 | 20.00% | 134/1,519 | 8.82% | 2.27 | 0.2158 |
Leg | 26 | 1.70% | 1/26 | 3.85% | 135/1,503 | 8.98% | 0.43 | 0.3617 |
IABP Site | 6 | 0.39% | 3/6 | 50.00% | 133/1,523 | 8.73% | 5.73 | 0.0004 |
Septicemia | 48 | 3.14% | 28/48 | 58.33% | 108/1,481 | 7.29% | 8.00 | 0.0000 |
Urinary Tract Infection | 45 | 2.94% | 13/45 | 28.89% | 123/1,484 | 8.29% | 3.49 | 0.0000 |
Neurologic |
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Stroke-Permanent | 51 | 3.34% | 18/51 | 35.29% | 118/1,478 | 7.98% | 4.42 | 0.0000 |
Stroke-Transient | 25 | 1.64% | 3/25 | 12.00% | 133/1,504 | 8.84% | 1.36 | 0.5824 |
Delirium | 82 | 5.36% | 11/82 | 13.41% | 125/1,447 | 8.64% | 1.55 | 0.1394 |
Continuous Coma > 24 Hrs | 30 | 1.96% | 25/30 | 83.33% | 111/1,499 | 7.40% | 11.25 | 0.0000 |
Pulmonary |
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Ventilation > 1 Day | 308 | 20.14% | 82/308 | 26.62% | 54/1,221 | 4.42% | 6.02 | 0.0000 |
Pulmonary Embolism | 3 | 0.20% | 1/3 | 33.33% | 135/1,526 | 8.85% | 3.77 | 0.1366 |
Pulmonary Edema | 101 | 6.61% | 17/101 | 16.83% | 119/1,428 | 8.33% | 2.02 | 0.0037 |
ARDS | 37 | 2.42% | 16/37 | 43.24% | 120/1,492 | 8.04% | 5.38 | 0.0000 |
Pneumonia | 81 | 5.30% | 28/81 | 34.57% | 108/1,448 | 7.46% | 4.63 | 0.0000 |
Renal |
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Renal Failure | 145 | 9.48% | 59/145 | 40.69% | 77/1,384 | 5.56% | 7.31 | 0.0000 |
Dialysis Required | 59 | 3.86% | 39/59 | 66.10% | 97/1,470 | 6.60% | 10.02 | 0.0000 |
Valvular |
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Structural Deterioration | 8 | 0.52% | 4/8 | 50.00% | 132/1,521 | 8.68% | 5.76 | 0.0000 |
NonStructural Dysfunction | 2 | 0.13% | 1/2 | 50.00% | 135/1,527 | 8.84% | 5.66 | 0.0410 |
Thromboembolism | 0 | 0.00% |
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| 136/1,529 | 8.89% |
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Valve Thrombus | 0 | 0.00% |
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| 136/1,529 | 8.89% |
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Anticoagulant Complication | 7 | 0.46% | 3/7 | 42.86% | 133/1,522 | 8.74% | 4.90 | 0.0016 |
Prosthetic Valve SBE | 6 | 0.39% | 0/6 | 0.00% | 136/1,523 | 8.93% | 0.00 | 0.4432 |
Vascular |
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Aortic Dissection | 3 | 0.20% | 3/3 | 100.00% | 133/1,526 | 8.72% | 11.47 | 0.0000 |
Illiac/Femoral Dissection | 2 | 0.13% | 1/2 | 50.00% | 135/1,527 | 8.84% | 5.66 | 0.0410 |
Acute Limb Ischemia | 22 | 1.44% | 10/22 | 45.45% | 126/1,507 | 8.36% | 5.44 | 0.0000 |
Other |
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Heart Block (Requiring Perm PM) | 60 | 3.92% | 5/60 | 8.33% | 131/1,469 | 8.92% | 0.93 | 0.8762 |
Cardiac Arrest | 54 | 3.53% | 36/54 | 66.67% | 100/1,475 | 6.78% | 9.83 | 0.0000 |
Anticoagulant Complication | 20 | 1.31% | 7/20 | 35.00% | 129/1,509 | 8.55% | 4.09 | 0.0000 |
Tamponade | 14 | 0.92% | 7/14 | 50.00% | 129/1,515 | 8.51% | 5.87 | 0.0000 |
GI Complication | 81 | 5.30% | 31/81 | 38.27% | 105/1,448 | 7.25% | 5.28 | 0.0000 |
Multi-System Failure | 49 | 3.20% | 36/49 | 73.47% | 100/1,480 | 6.76% | 10.87 | 0.0000 |
Atrial Fibrillation | 468 | 30.61% | 28/468 | 5.98% | 108/1,061 | 10.18% | 0.59 | 0.0079 |
Readmission <= 30 Days | 88 | 5.76% | 2/88 | 2.27% | 134/1,441 | 9.30% | 0.24 | 0.0246 |