Coronary artery bypass surgery prognosis

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Coronary Artery Bypass Surgery Microchapters


Patient Information



Saphenous Vein Graft Disease
Other Non-Atherosclerotic Saphenous Vein Graft Diseases

Indications for CABG



Imaging in the Patient Undergoing CABG

Chest X Ray


CT Angiography
MRI Angiography

Trans-Esophageal Echocardiography


Goals of Treatment

Perioperative Management

Perioperative Monitoring

Electrocardiographic Monitoring
Pulmonary Artery Catheterization
Central Nervous System Monitoring

Surgical Procedure

Anesthetic Considerations
Intervention in left main coronary artery disease
The Traditional Coronary Artery Bypass Grafting Procedure (Simplified)
Minimally Invasive CABG
Hybrid coronary revascularization
Conduits Used for Bypass
Videos on Spahenous Vein Graft Harvesting
Videos on Coronary Artery Bypass Surgery

Post-Operative Care and Complications

Pharmacotherapy in patients undergoing CABG CABG

Special Scenarios

Anomalous Coronary Arteries
COPD/Respiratory Insufficiency
Existing Renal Disease
Concomitant Valvular Disease
Previous Cardiac Surgery
Carotid Disease evaluation before surgery

Coronary artery bypass surgery prognosis On the Web

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editors-in-Chief: Cafer Zorkun, M.D., Ph.D. [2], Mohammed A. Sbeih, M.D. [3] Anahita Deylamsalehi, M.D.[4]


Prognosis following Coronary artery bypass surgery (CABG) depends on a variety of factors. In general, CABG improves the chances of survival of patients who are at high risks, such as those patients with the left main disease. After approximately 5 years the difference in survival rate between those who have had surgery and those treated by medication therapy diminishes. Age at the time of CABG is critical to the prognosis, therefore younger patients with no complicating diseases have a high probability of greater longevity. Recommended by ACC 2021 guideline, STS score system can be used to predict adverse outcomes of CABG such as death, renal failure, prolonged hospital stay, and mediastinitis.



  • Age at the time of CABG is critical factor to determine the prognosis. Younger patients with no complicating diseases have a high probability of greater longevity.
  • In a cohort study of 1,388 patients who were 48.9 years in average at the time of their first surgery survival rate were as follows:
    • 5 years: 93.6%
    • 10 years: 81.1%
    • 15 years: 62.1%
    • 20 years: 46.7%
    • 23 years: 38.4%

Society of Thoracic Surgery (STS) Risk Score

Adverse Outcomes CABG CABG and heart value surgery
Mortality rate 0.804 0.761
Permanent stroke 0.697 0.632
Renal failure 0.826 0.759
Prolonged mechanical ventilation 0.772 0.744
Repeated surgery 0.621 0.588
Composite morbidity and mortality 0.738 0.712
Prolonged post operation hospitalization 0.777 0.739
Deep sternal wound infection/Mediastinitis 0.681 0.659

2011 ACCF/AHA Guideline for Coronary Artery Bypass Graft Surgery (DO NOT EDIT)[3]

Public Reporting of Cardiac Surgery Outcomes (DO NOT EDIT)[3]

Class I
"1. Public reporting of cardiac surgery outcomes should use risk-adjusted results based on clinical data.[4][5][6][7][8][9][10][11] (Level of Evidence: B)"

Use of Outcomes or Volume as CABG Quality Measures (DO NOT EDIT)[3]

Class I
"1. All cardiac surgery programs should participate in a state, regional, or national clinical data registry and should receive periodic reports of their risk-adjusted outcomes. (Level of Evidence: C)"
Class IIa
"1. When credible risk-adjusted outcomes data are not available, volume can be useful as a structural metric of CABG quality.[12][13][14][15][16][17][18][19][20][21][22][23][24][25][26] (Level of Evidence: B)"
Class IIb
"1. Affiliation with a high-volume tertiary center might be considered by cardiac surgery programs that perform fewer than 125 CABG procedures annually. (Level of Evidence: C)"


  1. 1.0 1.1 1.2 1.3 Writing Committee Members. Lawton JS, Tamis-Holland JE, Bangalore S, Bates ER, Beckie TM; et al. (2022). "2021 ACC/AHA/SCAI Guideline for Coronary Artery Revascularization: A Report of the American College of Cardiology/American Heart Association Joint Committee on Clinical Practice Guidelines". J Am Coll Cardiol. 79 (2): e21–e129. doi:10.1016/j.jacc.2021.09.006. PMID 34895950 Check |pmid= value (help).
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  19. Peterson ED, Coombs LP, DeLong ER, Haan CK, Ferguson TB (2004). "Procedural volume as a marker of quality for CABG surgery". JAMA. 291 (2): 195–201. doi:10.1001/jama.291.2.195. PMID 14722145.
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  21. Shahian DM, O'Brien SM, Normand SL, Peterson ED, Edwards FH (2010). "Association of hospital coronary artery bypass volume with processes of care, mortality, morbidity, and the Society of Thoracic Surgeons composite quality score". J Thorac Cardiovasc Surg. 139 (2): 273–82. doi:10.1016/j.jtcvs.2009.09.007. PMID 20022608.
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