Early outcomes of cardiac surgery in elderly patients

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Published Sep 3, 2018
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Vol. 96 No. 4 (2018): Issue Apr 2018

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Khadija Mzoughi
Marwa Daly
Jalel Ziadi
Sofien Kamoun
Fethia Ben Moussa
Sana Fennira
Sondos Kraiem

Abstract

Background:
Due to the increase in average life expectancy and the higher incidence of cardiovascular disease, more elderly patients present for cardiac surgery nowadays. At the same time, age has been considered a predictor of morbidity and mortality.
The aim of our study was to evaluate the short-term outcomes of cardiac surgery in elderly patients. 

Methods:
We conducted a descriptive retrospective study including elderly patients who underwent cardiac surgery from January 2012 to 31st of December 2016. All patients were hospitalized before and after cardiac surgery in the cardiology department of Habib Thameur Hospital. 

Results:
Our study included 55 patients. Average age was 72±6 years old and sex-ratio was two. Eighty-five percent presented with angina, 18% with dyspnea and one patient with an aortic prosthetic valve endocarditis. Mean left ventricular function was 54 ±9 %. Mean EuroSCORE II was 1.91±1.18.
Twenty-six per-cent had an urgent surgery. Mean extracorporeal circulation time was of 77±26 min and mean extubation time was 8±6 h.
Eighty-four per cent had a coronary artery bybass grafting and 16% a valve replacement. Four per cent had a redux and 4% a combined surgery. Stay in surgical department varied between 3 and 10 days with average of 4.6±1.2 days. Early mortality rate was of 2% and 98% had complications. Ninety-eight complications occurred after surgery: 35 reintervention for mediastinal bleeding or tamponade, 28 bleedings requiring transfusions, eight heart rhythm disorders, an atrioventricular conduction block requiring ventricular, five atrial fibrillation, two ventricular tachycardias, a ventricular fibrillation, eight low cardiac outpout, seven prolonged mechanical ventilation and eight pneumonias.
In univariate analysis, recent myocardial infarction and chronic kidney disease were predictive of early complications.

Conclusion:
Our data shows cardiac surgery is feasible in elderly patients with acceptable risk in terms of mortality and an increased morbidity due to their frailty. Careful patient selection is needed for the success of cardiac surgery in elderly patients.

Keywords:

Aged patients, Cardiac surgery, Mortality, Complications.

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