Vital Stats in Adult Cardiac Surgery, Valve Surgery and Aorta Surgery

Our latest volume and outcomes data in infographic form

Below we share recent volumes and clinical outcomes from a sampling of centers in Cleveland Clinic’s Miller Family Heart, Vascular & Thoracic Institute. 

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Adult Cardiac Surgery Mortality Remains Low Even as Volume and Case Complexity Rise

Over the past 16 years, mortality for adult cardiac surgery cases at Cleveland Clinic has substantially trended downward at the same time that case complexity has increased and volumes have steadily risen.

3-Star Performance

Cleveland Clinic received the highest Composite Quality Rating (three stars) for the following procedures in the most recent Society of Thoracic Surgeons (STS) Adult Cardiac Surgery Database report (for the three-year period ending in June 2022):

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

2022 In-Hospital Mortality (1/1/22-12/31/22)

CABG = coronary artery bypass grafting; AVR = aortic valve replacement; MV = mitral valve; STS = Society of Thoracic Surgeons


Aortic Valve Replacement (AVR)

0.0% operative mortality for isolated surgical AVR in 2022 (N = 405)

(vs. 1.3% STS predicted mortality)

0.5% operative mortality for surgical AVR + CABG in 2022 (N = 182)

(vs. 2.7% STS predicted mortality)

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0.6% procedural mortality for transcatheter AVR in 2020 (N = 652)

(no predicted rate available)

Isolated Mitral Valve Repair

0.0% operative mortality among 3,905 cases from 2014 through 2022

Isolated Mitral Valve Replacement

0.6% operative mortality in 2022 (N = 179)

(vs. 3.8% STS predicted mortality)

Aorta Surgery*

2.1% operative mortality in 2022 (N = 1,100)

(no predicted rate available)

0.9% operative mortality for elective cases in 2022 (N = 862)

(no predicted rate available)

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*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 and