Cleveland Clinic's Vital Statistics in Adult Cardiac Surgery

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

Cleveland Clinic is a non-profit academic medical center. Advertising on our site helps support our mission. We do not endorse non-Cleveland Clinic products or services. Policy

ADULT CARDIAC SURGERY

Maintaining Low Operative Mortality at High Volumes and Complexity Levels

combined bar graph and line graph covering years 2007 to 2025

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 2025:

boxes containing three stars with letters underneath

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

2025 Operative Mortality*

Procedure/Volume	Cleveland Clinic Observed	STS Expected
Isolated CABG (N = 969)	0.8%	1.6%
Isolated AVR (N = 408)	0.0%	1.6%
AVR + CABG (N = 213)	1.9%	3.4%
Isolated MV replacement (N = 167)	2.4%	4.7%
Isolated MV repair (N = 447)	0.0%	0.7%
Procedure/Volume
Isolated CABG (N = 969)
Cleveland Clinic Observed
0.8%
STS Expected
1.6%
Isolated AVR (N = 408)
Cleveland Clinic Observed
0.0%
STS Expected
1.6%
AVR + CABG (N = 213)
Cleveland Clinic Observed
1.9%
STS Expected
3.4%
Isolated MV replacement (N = 167)
Cleveland Clinic Observed
2.4%
STS Expected
4.7%
Isolated MV repair (N = 447)
Cleveland Clinic Observed
0.0%
STS Expected
0.7%

_{*From 1/1/25 through 12/31/25.
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 2025 (N = 408)
(vs. 1.6% STS predicted mortality)

1.9%

operative mortality for surgical AVR + CABG in 2025 (N = 213)
(vs. 3.4% STS predicted mortality)

0.6%

procedural mortality for transcatheter AVR in 2025 (N = 706)
(no predicted rate available)

Isolated Mitral Valve Repair

0.0%

operative mortality in 2025 (N = 447)
(vs. 0.7% STS predicted mortality)

Isolated Mitral Valve Replacement

2.4%

operative mortality in 2025 (N = 167)
(vs. 4.7% STS predicted mortality)

Aorta Surgery*

2.7%

operative mortality in 2025 (N = 1,459)
(no predicted rate available)

1.5%

operative mortality for elective aorta surgery cases in 2025 (N = 1,198)
(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}

For more data like this, visit clevelandclinic.org/e15.