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Arq Bras Cardiol. 2008 May;90(5):320-3.

Indicators of healthcare quality in isolated coronary artery bypass graft surgery performed at a tertiary cardiology center.

[Article in English, Portuguese]

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  • 1Hospital Pró-Cardíaco, Núcleo Técnico de Qualidade Assistencial, Rio de Janeiro, RJ - Brazil.



Quality indicators (QI) for cardiac surgery are important instruments for measuring healthcare quality in hospital centers and allow comparison with high-quality healthcare centers.


To evaluate QIs in isolated myocardial revascularization procedures (CABG) performed at a tertiary cardiology center.


One hundred and forty-four consecutive patients who had undergone isolated CABG were evaluated between October 2005 and March 2007. One hundred and eight patients were men (75%), the mean age was 65+/-11, and the EuroSCORE was 4+/-3. The following QIs were measured: time elapsed between the surgery date-setting appointment and the actual day of the CABG (TDC); surgery cancellation rate (SCR) due to problems in hospital infrastructure; length of hospital stay (LOS); operative mortality (OM) and rate of readmission (RHR) for infection in the surgical wound.


The TDC (n=98) was 4+/-3 days (median: 4 days) and the SCR was zero. The OM recorded of 4.9% (95% confidence interval [CI] = 2.2 - 9.87%) was lower than the expected OM of 5.1% (95% CI = 1.4% to 14.37%), but with no statistical significance (p=0.65). The area under the ROC curve of the EuroSCORE for the OM was 0.702 (95% CI = 0.485 - 0.919). LOS was 11+/-9 days. The area under the ROC curve of the EuroSCORE for the LOS was 0.764 (95% CI = 0.675 - 0.852). The RHR recorded was 2.1%.


The measurement of the QIs showed that, in a medical center with a low annual volume of CABG, the results were compatible with the risk profile of the population involved.

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