Title: A Study on Incidence and Etiology of Hyponatremia in Hospitalised Elderly Patients Admitted in RIMS
Authors: Lokesh N K, Yamunaraj S D
DOI: https://dx.doi.org/10.18535/jmscr/v6i9.131
Abstract
Background: Hyponatremia is one of the commonest electrolyte abnormality in clinical practice and most common cause for hospital admission among elderly patients. Causing significant mortality and morbidity. Early detection and treatment may significantly decrease mortality.
Aim: To know the incidence and etiology of hyponatremia
Materials and Methods: This was prospective observational study done between October 2011 to October 2012 at Rajendra Institute of Medical Sciences, Dept of General Medicine, Ranchi. All patients with more than 60 yrs of age with atleast two serum values less than 130 mmol/L were included.
Results: Total no of patients admitted was 2100 and serum Sodium done for 2000 patients. Incidence of hyponatremia was 18.9% and severe hyponatremia was 5%.Most common age group affected with hyponatremia was 61-70 yrs (44%). Most common symptom was nausea, vomiting, seizure and altered sensorium. Most common etiology for hyponatremia was SIADH (28%) and Diuretics was second commonest cause (15%).
Conclusion: Symptamatic hyponatremia was more common among hospitalised elderly patients, SIADH and Diuretics was most common cause for hyponatremia. Mortality was about 10%, was mainly due to underlying primary disease. Most of symptoms of hyponatremia were relievd following treatment.
Keywords: Hyponatremia, SIADH, Diuretics, Vomiting, Seizures.
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