Is Left Atrial Size a Predictor of Mortality after Coronary Artery Bypass Surgery? A Single Center Study.

Khalid S Ibrahim; Fadia Mayyas; Khalid Kheirallah; Nizar R. Alwaqfi; David R. Van Wagoner

doi:10.6515/acs20160621a

March 1, 2017Open Access

Is Left Atrial Size a Predictor of Mortality after Coronary Artery Bypass Surgery? A Single Center Study.

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Why the study?

Does enlarged left atrial size predict 30-day mortality in patients undergoing isolated coronary artery bypass surgery?

Structured PICO

Does enlarged left atrial size predict 30-day mortality in patients undergoing isolated coronary artery bypass surgery?

P

Population

1,070 patients who underwent isolated coronary artery bypass surgery (CABG) from 2005-2014 at a single center in Jordan. Mean age 59.07 years, 77.8% male. Excluded redo surgery, valve surgery, and combined CABG and valve surgery.

I

Intervention

Enlarged left atrial (LA) size (diameter ≥ 4 cm) measured preoperatively by transthoracic echocardiography

C

Comparator

Normal left atrial (LA) size (diameter < 4 cm)

O

Outcome

30-day mortality post CABGhard clinical

Preoperative left atrial enlargement (diameter ≥ 4 cm) is a strong, independent predictor of 30-day mortality following isolated coronary artery bypass surgery.

Limitations

Retrospective study design
LA diameter was used instead of LA volume, which may be a more precise estimate
Echocardiographic data were not stored well
Lack of measurement of end-diastolic pressures
Data on post-operative atrial fibrillation was documented in only a minority of patients

Implication

Should not yet change CABG risk stratification; hypothesis-generating and requires prospective validation.

Abstract

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Discussion

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Cite This Study

Ibrahim et al. (2017) studied this question.

synapsesocial.com/papers/6a8361ea4409459fd0c60ef3 https://doi.org/10.6515/acs20160621a

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Is Left Atrial Size a Predictor of Mortality after Coronary Artery Bypass Surgery? A Single Center Study.

Structured PICO

Limitations

Implication

Abstract

Discussion

Cite This Study

Is Left Atrial Size a Predictor of Mortality after Coronary Artery Bypass Surgery? A Single Center Study.

Structured PICO

Limitations

Implication

Abstract

Discussion

Cite This Study

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