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. Author manuscript; available in PMC: 2025 May 1.
Published in final edited form as: Ann Surg. 2023 Sep 27;279(5):891–899. doi: 10.1097/SLA.0000000000006100

Table 2:

Operative Characteristics, Overall and by Surgeon-Anesthesiologist Familiarity

Team Familiarity
Overall N=113020 Unfamiliar N=44307 Less Familiar N=37082 Familiar N=31631 p-value

Procedure Type, N(%) <0.001
 CABG 84397 (74.7) 33743 (76.2) 27422 (73.9) 23232 (73.4)
 SAVR 15939 (14.1) 6000 (13.5) 5357 (14.4) 4582 (14.5)
 SAVR+CABG 12684 (11.2) 4564 (10.3) 4303 (11.6) 3817 (12.1)
Procedure Year, N(%) <0.001
 2017, N(%) 65550 (57.9) 24979 (56.4) 21421 (57.8) 19150 (60.5)
 2018, N(%) 47470 (42.0) 19328 (43.6) 15661 (42.2) 12481 (39.5)
Admission Status, N(%) <0.001
 Emergent 23706 (21.0) 9936 (22.4) 7629 (20.6) 6141 (19.4)
 Urgent 22629 (20.0) 9104 (20.5) 7537 (20.3) 5988 (18.9)
 Elective 66280 (58.6) 25098 (56.6) 21792 (58.8) 19390 (61.3)
 Trauma Activation 93 (0.1) 29 (0.1) 35 (0.1) 29 (0.1)
 Unknown 312 (0.3) 140 (0.3) 89 (0.2) 83 (0.3)
Number of Bypasses (CABG and SAVR+CABG Only), N(%) <0.001
 1 27230 (28.0) 10741 (28.0) 9026 (28.5) 7463 (27.6)
 2 40478 (41.7) 16167 (42.1) 13176 (41.5) 11135 (41.2)
 3 23220 (23.9) 9166 (23.9) 7533 (23.7) 6521 (24.1)
 ≥4 6153 (6.3) 2233 (5.8) 1990 (6.3) 1930 (7.1)
Endoscopic Saphenous Vein Harvest, N(%) 70554 (72.6) 28018 (73.0) 23084 (72.8) 19452 (71.9) <0.001

CABG = coronary artery bypass grafting; SAVR = surgical aortic valve replacement.