Vital Statistics in Adult Cardiac Surgery

Below we share recent volumes and clinical outcomes for leading cardiac surgery categories in Cleveland Clinic’s Heart, Vascular and Thoracic Institute.

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ADULT CARDIAC SURGERY

Mortality Remains Low Even as Volumes Rise

Over the past 18 years, mortality for adult cardiac surgery procedures at Cleveland Clinic has substantially trended downward even as volumes rise and case complexity increases.

bar graph showing values from 2007 to 2024

3-Star Performance

Cleveland Clinic received the highest Composite Quality Rating (three stars) for these operations in the latest Society of Thoracic Surgeons (STS) Adult Cardiac Surgery Database report, for the three-year period ending in June 2024:

boxes containing three stars with letters underneath

_{CABG = coronary artery bypass grafting; AVR = aortic valve replacement; MVRR = mitral valve repair/replacement}

2024 Operative Mortality*

Procedure/Volume	Cleveland Clinic Observed	STS Expected
Isolated CABG (N = 994)	0.8%	1.2%
Isolated AVR (N = 382)	0.0%	1.5%
AVR + CABG (N = 171)	1.8%	3.7%
Isolated MV replacement (N = 181)	1.1%	3.4%
MV replacement + CABG (N = 59)	0.0%	6.4%
Isolated MV repair (N = 460)	0.2%	0.6%
MV repair + CABG (N = 144)	1.4%	3.8%
Procedure/Volume
Isolated CABG (N = 994)
Cleveland Clinic Observed
0.8%
STS Expected
1.2%
Isolated AVR (N = 382)
Cleveland Clinic Observed
0.0%
STS Expected
1.5%
AVR + CABG (N = 171)
Cleveland Clinic Observed
1.8%
STS Expected
3.7%
Isolated MV replacement (N = 181)
Cleveland Clinic Observed
1.1%
STS Expected
3.4%
MV replacement + CABG (N = 59)
Cleveland Clinic Observed
0.0%
STS Expected
6.4%
Isolated MV repair (N = 460)
Cleveland Clinic Observed
0.2%
STS Expected
0.6%
MV repair + CABG (N = 144)
Cleveland Clinic Observed
1.4%
STS Expected
3.8%

_{*From 1/1/24 through 12/31/24.
STS = Society of Thoracic Surgeons; CABG = coronary artery bypass grafting; AVR = aortic valve replacement; MV = mitral valve}

VALVE AND AORTA SURGERY

Isolated Aortic Valve Replacement (AVR)

0.0%

operative mortality for isolated surgical AVR in 2024 (N = 382)
(vs. 1.5% STS predicted mortality)

1.8%

operative mortality for surgical AVR + CABG in 2024 (N = 171)
(vs. 3.7% STS predicted mortality)

0.7%

procedural mortality for transcatheter AVR in 2024 (N = 667)
(no predicted rate available)

Isolated Mitral Valve Repair

0.2%

operative mortality in 2024 (N = 460)
(vs. 0.6% STS predicted mortality)

Isolated Mitral Valve Replacement

1.1%

operative mortality in 2024 (N = 181)
(vs. 3.4% STS predicted mortality)

Aorta Surgery*

2.1%

operative mortality in 2024 (N = 1,379)
(no predicted rate available)

0.9%

operative mortality for elective cases in 2024 (N = 1,143)
(no predicted rate available)

_{*Aorta surgery data are from the STS Adult Cardiac Surgery Database and do not include vascular surgery cases.
STS = Society of Thoracic Surgeons; CABG = coronary artery bypass grafting}

Cleveland Clinic’s Heart, Vascular & Thoracic Institute has a long-established tradition of reporting volume and outcomes data across its various subspecialty areas. For more information like the data reported above, visit clevelandclinic.org/hvtioutcomes and clevelandclinic.org/e15.