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Vol. 29. Issue S2.
Abstracts Asociación Mexicana del Hígado (AMH) 2023
(February 2024)
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Vol. 29. Issue S2.
Abstracts Asociación Mexicana del Hígado (AMH) 2023
(February 2024)
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Incidence and Associated factors to development of hyponatremia in a cohort of ambulatory patients with compensated liver cirrhosis
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Marlene López-Sánchez1, Juan O. Talavera2, Nayeli Ortiz-Olvera3, Rosalba Moreno Alcántar3, Segundo Moran Villota1
1 Laboratorio de Investigación en Gastro-Hepatología, Centro Médico Nacional Siglo XXI, IMSS, Ciudad de México
2 Dirección de Enseñanza e Investigación, Centro Médico ABC, Ciudad de México
3 Servicio de Gastroenterología, Centro Médico Nacional Siglo XXI, IMSS, Ciudad de México
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Table 1. RH-MELD Index.
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Vol. 29. Issue S2

Abstracts Asociación Mexicana del Hígado (AMH) 2023

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Introduction and Objectives

Hyponatremia is associated with ascites, hepatic encephalopathy, primary bacterial peritonitis, and increased mortality. However, the information about incidence and factors associated with hyponatremia in ambulatory patients with compensated cirrhosis is scarce. The aim of the study was to estimate the incidence and associated factors to the development of hypervolemic hyponatremia.

Materials and Patients

Ambulatory patients with compensated cirrhosis seen at Medical Center Siglo XXI were selected. All variables included in Child-Pugh Index and in the MELD Score and the types of treatment diet were analyzed. Hyponatremia was considered when serum concentration of sodium was <135 mEq/L in hypotonic state and water retention.

Results

The incidence of hyponatremia was 9.6% (13/135). A prognostic risk index was identified based on fluid retention and the baseline MELD score (RH-MELD Index) (Table 1). A higher incidence of hyponatremia was observed in patients in category III [RR: 7.96 (95%CI: 1.17-54.06, p=0.034)], when adjusting for diet; patients with protein supplement consumption without a structured diet had a higher risk of hyponatremia [RR: 17.72 (95%CI: 3.50-89.52), p=0.001)].

Conclusions

The results suggest that the incidence of dilutional hyponatremia in outpatients with cirrhosis is frequent; mild alterations in water retention and liver function in the compensated phase represent an early indicator of its development, which can be modified by the indicated diet.

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Ethical statement

The protocol was registered and approved by the Ethics Committee. The identity of the patients is protected. Consentment was obtained.

Declaration of interests

None

Funding

This research did not receive any specific grant from funding agencies in the public, commercial, or not-for-profit sectors.

Table 1.

RH-MELD Index.

Risk categories for Hyponatremia
(RH-MELD) Categories  N (%)  P value 
I: No water retention, MELD ≤9  2/62 (3.2)  Reference 
II: Water retention or MELD ≥10  6/55 (10.9)  0.201 
III: Water retention + MELD ≥10  5/18 (27.8)  0.010* 

∗ Fisher exact test.

Unadjusted risk: RH-MELD I (reference), II (RR:3.67, CI 95%:0.71-19.01, p=0.121), III (RR:11.53, CI 95%: 2.01-66.13, p=0.006).

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