Table 4

Economic impact of preoperative cardiology consultation

ChargeCostWith cardiology consultationWithout cardiology consultationCost differential
Total number, n=79Total costTotal number, n=158Total costAdjusted cost
1:1 ratio
Tests obtainedNo. (%)No. (%)
 ECG$452$12578 (98.7)$975086 (54.4)$10 750$5375$4375
 Transthoracic echo$4490$123948 (60.8)$59 48335 (22.2)$43 366$21 683$37 800
 Nuclear stress imaging$9551$263617 (21.5)$44 81223 (14.6)$60 628$30 314$14 498
 CT coronary arteries$3177$8772 (2.5)$17540 (0)$0$0$1754
 Left heart catheterisation$26 597$73411 (1.3)$73410 (0)$0$0$7341
 Length of stay (days)$8549$2360343.7 days$811 132546.6 days$1 289 976$644 988$166 144
 Total cost$934 272$1 404 720$702 360$231 912
 Total cost per patient$11 826$8891$2935