Relationship between Serum Sodium Level at Admission of Patients with Pulmonary Embo-lism and Their Prognosis during Hospitaliza-tion

Background:The aim of this study was to assess the relationship between serum sodium level on admission and the prognosis of patients with pulmonary embolism. Materials and Methods:The current descriptive-analytical study is cross-sectional, and 101 patients with pulmonary embolism who were admitted and treated in Shohadaye Kargar Hospital in Yazd in 2010-2020 were studied. Results:The findings showed no difference between the mean serum sodium level at admission in patients with coronary disease, pulmonary disease, cancer and renal disease compared to other individuals.The mean serum sodium level on admission of patients who were hospitalized in the ICU was lower than the non-ICU admissions.No significant relationship was observed between serum sodium level and the length of hospitalization.There was a significant relationship between the need for ICU admission and serum sodium level, and ICU admission was more common in patients with hyponatremia.There was no significant relationship between ICU admission and the patients' age, treatment outcomes, and right ventricular dysfunction.There was also no significant relationship between the patients' age, right ventricular dysfunction and serum sodium levels and treatment outcomes. Conclusion:Hyponatraemia on admission predicts poor outcome and is an independent risk factor for ICU admission in patients with pulmonary embolism.As a result, this issue requires careful consideration and further study.