Hypochloremia may increase in-hospital mortality and hospital stay in critically ill patients with HF

Written By :  Dr. Shravani Dali
Medically Reviewed By :  Dr. Kamal Kant Kohli
Published On 2023-12-25 04:45 GMT   |   Update On 2023-12-25 06:53 GMT
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Hypochloremia may increase in-hospital mortality and hospital stay in critically ill patients with HF suggests a new study published in the International Journal of Cardiology.

A study was done to assess whether serum chloride predicts risk of death in intensive care unit (ICU) patients with heart failure (HF) and the effect of bicarbonate on the efficacy of serum chloride in predicting risk of death in ICU patients.

Methods: A total of 9364 HF patients hospitalized in the ICU were enrolled. Patients were divided into hypochloremia (< 96 mEq/L), normal chloride (96–108 mEq/L), and hyperchloremia (> 108 mEq/L) groups. Similarly, we divided the serum bicarbonate level into three groups: low bicarbonate (< 22 mEq/L), medium bicarbonate (22–26 mEq/L), and high bicarbonate (> 26 mEq/L). The outcome of this study was in-hospital mortality. Then, we analyzed the association between abnormal serum chloride and mortality according to the category of serum bicarbonate and assessed the interaction effect. Restricted cubic spline (RCS) was used to show possible nonlinear associations.

Results: In the overall study population, hypochloremia was associated with a higher risk of in-hospital mortality than normal chloride (odds ratio [OR] 1.54, 95% confidence interval [CI] 1.26–1.86, P < 0.001), hyperchloremia was not significantly related to in-hospital mortality (OR 1.00, 95% CI 0.85–1.19, P = 0.962). However, a linear association between serum chloride and in-hospital mortality was found in the low and normal bicarbonate groups (all P for nonlinear >0.05).

Hypochloremia is associated with in-hospital mortality and longer hospital stay in critically ill patients with HF. In addition, risk of death in the low and medium serum bicarbonate groups decreased with increasing serum chloride level.

Reference:

The association between serum chloride and mortality in ICU patients with heart failure: The impact of bicarbonate. Zhaochong Tan, M.D. Yang Liu, Kui Hong. Open AccessPublished:December 21, 2023DOI:https://doi.org/10.1016/j.ijcard.2023.131672

Keywords:

Hypochloremia, may, increase, in-hospital, mortality, hospital, stay , critically, ill, patients, HF, International Journal of Cardiology

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Article Source : International journal of cardiology

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