STS NATIONAL CARDIAC SURGERY DATABASE
1996 AORTIC VALVE REPLACEMENT PATIENTS
UNIVARIATE ANALYSIS: PREOPERATIVE RISK VARIABLES
PATIENT POPULATION: 8,352
OPERATIVE SURVIVORS: 8,032
OPERATIVE MORTALITIES: 320
RISK VARIABLE | Count | % of Pop. | Mortality w/ Variable Present |
| Mortality w/Variable Absent |
| Relative Risk | c 2 |
Male | 4,923 | 58.94% | 159/ 4,923 | 3.23% | 161/ 3,429 | 4.70% | 0.69 | 0.0006 |
Female | 3,429 | 41.06% | 161/ 3,429 | 4.70% | 159/ 4,923 | 3.23% | 1.45 | 0.0006 |
Caucasian | 7,171 | 85.86% | 269/ 7,171 | 3.75% | 51/ 1,181 | 4.32% | 0.87 | 0.3468 |
Non-Caucasian | 1,181 | 14.14% | 51/ 1,181 | 4.32% | 269/ 7,171 | 3.75% | 1.15 | 0.3468 |
Smoking History | 3,687 | 44.15% | 134/ 3,687 | 3.63% | 186/ 4,665 | 3.99% | 0.91 | 0.4043 |
Family History | 2,166 | 25.93% | 69/ 2,166 | 3.19% | 251/ 6,186 | 4.06% | 0.79 | 0.0688 |
Diabetes | 1,281 | 15.34% | 73/ 1,281 | 5.70% | 247/ 7,071 | 3.49% | 1.63 | 0.0002 |
Morbid Obesity | 863 | 10.33% | 38/ 863 | 4.40% | 282/ 7,489 | 3.77% | 1.17 | 0.3554 |
Hypercholesterolemia | 2,192 | 26.25% | 77/ 2,192 | 3.51% | 243/ 6,160 | 3.94% | 0.89 | 0.3655 |
Renal Failure | 400 | 4.79% | 45/ 400 | 11.25% | 275/ 7,952 | 3.46% | 3.25 | 0.0000 |
Renal Failure Requiring Dialysis | 104 | 1.25% | 13/ 104 | 12.50% | 307/ 8,248 | 3.72% | 3.36 | 0.0000 |
Hypertension | 4,105 | 49.15% | 182/ 4,105 | 4.43% | 138/ 4,247 | 3.25% | 1.36 | 0.0048 |
Pulmonary Hypertension | 1,261 | 15.10% | 74/ 1,261 | 5.87% | 246/ 7,091 | 3.47% | 1.69 | 0.0000 |
CVA | 438 | 5.24% | 37/ 438 | 8.45% | 283/ 7,914 | 3.58% | 2.36 | 0.0000 |
Endocarditis | 531 | 6.36% | 31/ 531 | 5.84% | 289/ 7,821 | 3.70% | 1.58 | 0.0128 |
Cardiomegaly | 1,773 | 21.23% | 77/ 1,773 | 4.34% | 243/ 6,579 | 3.69% | 1.18 | 0.2062 |
COPD | 1,236 | 14.80% | 62/ 1,236 | 5.02% | 258/ 7,116 | 3.63% | 1.38 | 0.0187 |
Immunosuppressive Rx | 159 | 1.90% | 6/ 159 | 3.77% | 314/ 8,193 | 3.83% | 0.98 | 0.9694 |
Peripheral Vascular Disease | 38 | 0.45% | 1/ 38 | 2.63% | 319/ 8,314 | 3.84% | 0.69 | 0.6994 |
Cerebrovascular Disease | 519 | 6.21% | 42/ 519 | 8.09% | 278/ 7,833 | 3.55% | 2.28 | 0.0000 |
Prior CAB | 491 | 5.88% | 43/ 491 | 8.76% | 277/ 7,861 | 3.52% | 2.49 | 0.0000 |
Prior Valve | 676 | 8.09% | 46/ 676 | 6.80% | 274/ 7,676 | 3.57% | 1.91 | 0.0000 |
Prior Other Cardiac | 256 | 3.07% | 26/ 256 | 10.16% | 294/ 8,096 | 3.63% | 2.80 | 0.0000 |
Prior Non-Cardiac | 303 | 3.63% | 23/ 303 | 7.59% | 297/ 8,049 | 3.69% | 2.06 | 0.0005 |
Prior Non-Surgical | 273 | 3.27% | 17/ 273 | 6.23% | 303/ 8,079 | 3.75% | 1.66 | 0.0360 |
PTCA To OR <6Hrs | 1 | 0.01% | 0/ 1 | 0.00% | 320/ 8,351 | 3.83% | 0.00 | 0.8418 |
PTCA To OR >6Hrs | 78 | 0.93% | 6/ 78 | 7.69% | 314/ 8,274 | 3.80% | 2.03 | 0.0743 |
Pior MI <6 Hrs vs. No MI | 1 | 0.01% | 0/ 1 | 0.00% | 283/ 7,866 | 3.60% | 0.00 | 0.8468 |
Prior MI 6 to 24 Hrs vs. No MI | 5 | 0.06% | 2/ 5 | 40.00% | 283/ 7,866 | 3.60% | 11.12 | 0.0000 |
Prior MI 1-7 Days vs. No MI | 50 | 0.60% | 4/ 50 | 8.00% | 283/ 7,866 | 3.60% | 2.22 | 0.0969 |
Prior MI 7-21 Days vs. No MI | 36 | 0.43% | 3/ 36 | 8.33% | 283/ 7,866 | 3.60% | 2.32 | 0.1291 |
Prior MI >21 Days vs. No MI | 394 | 4.72% | 28/ 394 | 7.11% | 283/ 7,866 | 3.60% | 1.98 | 0.0004 |
Congestive Heart Failure | 3,562 | 42.65% | 208/ 3,562 | 5.84% | 112/ 4,790 | 2.34% | 2.50 | 0.0000 |
Unstable Angina | 645 | 7.72% | 35/ 645 | 5.43% | 285/ 7,707 | 3.70% | 1.47 | 0.0280 |
Cardiogenic Shock | 52 | 0.62% | 7/ 52 | 13.46% | 313/ 8,300 | 3.77% | 3.57 | 0.0003 |
Resuscitation | 55 | 0.66% | 6/ 55 | 10.91% | 314/ 8,297 | 3.78% | 2.88 | 0.0061 |
Arrhythmia | 1,577 | 18.88% | 97/ 1,577 | 6.15% | 223/ 6,775 | 3.29% | 1.87 | 0.0000 |
Digitalis | 2,092 | 25.05% | 114/ 2,092 | 5.45% | 206/ 6,260 | 3.29% | 1.66 | 0.0000 |
Beta Blockers | 1,167 | 13.97% | 44/ 1,167 | 3.77% | 276/ 7,185 | 3.84% | 0.98 | 0.9067 |
Ca Antagonists | 1,543 | 18.47% | 64/ 1,543 | 4.15% | 256/ 6,809 | 3.76% | 1.10 | 0.4734 |
ACE Inhibitors | 1,922 | 23.01% | 100/ 1,922 | 5.20% | 220/ 6,430 | 3.42% | 1.52 | 0.0004 |
Nitrates - P.O. | 902 | 10.80% | 54/ 902 | 5.99% | 266/ 7,450 | 3.57% | 1.68 | 0.0004 |
Nitrates - I.V. | 186 | 2.23% | 21/ 186 | 11.29% | 299/ 8,166 | 3.66% | 3.08 | 0.0000 |
Antiarrhythmics | 386 | 4.62% | 24/ 386 | 6.22% | 296/ 7,966 | 3.72% | 1.67 | 0.0124 |
Antiplatelets | 1,601 | 19.17% | 78/ 1,601 | 4.87% | 242/ 6,751 | 3.58% | 1.36 | 0.0158 |
Anticoagulants | 1,134 | 13.58% | 71/ 1,134 | 6.26% | 249/ 7,218 | 3.45% | 1.81 | 0.0000 |
Diuretics | 3,227 | 38.64% | 175/ 3,227 | 5.42% | 145/ 5,125 | 2.83% | 1.92 | 0.0000 |
Inotropes | 186 | 2.23% | 23/ 186 | 12.37% | 297/ 8,166 | 3.64% | 3.40 | 0.0000 |
Steroids | 289 | 3.46% | 25/ 289 | 8.65% | 295/ 8,063 | 3.66% | 2.36 | 0.0000 |
Aspirin | 2,314 | 27.71% | 96/ 2,314 | 4.15% | 224/ 6,038 | 3.71% | 1.12 | 0.3498 |