Low-Dose Tolvaptan for the Treatment of Dilutional Hyponatremia in Cirrhosis: A Case Report and Literature ReviewReportar como inadecuado




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Case Reports in Hepatology - Volume 2014 2014, Article ID 795261, 4 pages -

Case Report

The First Hospital of Zhuji, 122nd Huansha Nan Road, Zhuji 311800, China

The State Key Laboratory of Diagnosis and Treatment for Infectious Disease, College of Medicine, The First Affiliated Hospital, Zhejiang University, 79th Qingchun Road, Hangzhou 310003, China

Received 7 January 2014; Revised 3 April 2014; Accepted 15 April 2014; Published 30 April 2014

Academic Editor: Mario Pirisi

Copyright © 2014 Guo Shen and Hainv Gao. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Dilutional hyponatremia is common in decompensated cirrhosis and can be successfully treated by tolvaptan, a vasopressin V2-receptor antagonist. Data were lacking regarding the effects of tolvaptan on cirrhotic patients with a Child-Pugh score of >10 and a serum sodium concentration of <120 mmol-L. We report a case of forties man with a 20-year history of chronic hepatitis B presenting with yellow urine and skin. Laboratory tests demonstrated prolonged prothrombin time, markedly elevated total bilirubin, severe hyponatremia, and a Child-Pugh score of >10. The patient was diagnosed with dilutional hyponatremia and was treated with recommended dosage tolvaptan at first. The serum concentration of sodium recover but the patient felt obviously thirsty. As the dosage of tolvaptan was decreased accordingly from 15 mg to 5 mg, the patient still maintained the ideal concentration of serum sodium. This case emphasizes that cirrhotic patient with higher Child-Pugh scores and serum sodium concentration of <120 mmol-L can be treated with lower dose of tolvaptan.





Autor: Guo Shen and Hainv Gao

Fuente: https://www.hindawi.com/



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