Prognosis Impact of Postoperative Dysnatremia in Cardiac Surgery under Extracorporeal Circulation

Dysnatremias have several particular aspects concerning their etiology and evolution. They are associated with morbidity and mortality in various clinical contexts.

The Primary aim of our study is to evaluate the prognosis impact of postoperative dysnatremia in cardiac surgery under extracorporeal circulation.

Methods: This is a descriptive and analytical retrospective study, concerning patients operated for a period of 18 months between September 2018 and February 2020 in the cardiovascular surgery department at the Mohammed V Military teaching hospital in Rabat, and including 253 adult patients.

The bioassay of plasma sodium was done immediately, at 4, 24 and 48 hours after admission to the intensive care unit.

Results: The average age of the patients was 56 years with male predominance. Fifty-seven patients (22.5%) presented at least hypernatremia and 30 patients (11.9%) at least hyponatremia. The overall mortality rate was 7.9%. 17.5% when hypernatremia.

Conclusion: The level of plasma sodium after admission to intensive care is an independent predictor of morbidity and mortality during cardiac surgery under extracorporeal circulation. Hypernatremia is an alarm signal that requires rapid and effective management to avoid progression to serious complications.