Trabajo Original

Incidence of high body mass index in critically ill cancer patients

Silvio Antonio Ñamendys-silva, Humberto Guevara-garcía, Juan A. Arredondo-armenta, Mireya Barragán-dessavre, Andoreni R. Bautista-ocampo, Francisco J. García-guillén, Bertha M. Córdova-sánchez, Abelardo Meneses García, Ángel Herrera-gómez

Objective: The aims of this study were to describe the incidence of obesity and overweight in critically ill cancer patients, and to evaluate the clinical characteristics and Intensive Care Unit (ICU) outcomes of critically ill cancer patients with obesity and overweight.Methods: An observational cohort study. There were no interventions. Results: During the study period, 483 critically ill cancer patients were admitted to ICU, and 59.2% of them (258 patients) had high body mass index (BMI). Comparing the groups of patients with BMI < 25 kg/m2 and ≥ 25 kg/m2, we observed that those with BMI ≥ 25 kg/m2 were older at the time of admission to the ICU. The global mortality in ICU was of 22.4%. ICU mortality was similar between patients with BMI < 25 kg/m2 and ≥ 25 kg/m2 (21.3% versus 23.0%, p = 0.649). Univariate analysis indicated that the following five factors were associated with ICU death in patients with BMI ≥ 25 kg/m2 as the outcome variable of interest: age, sepsis, invasive mechanical ventilation, type 2 diabetes, ≥ two organ failures. Multivariate analysis identified ≥ two organ failures as independent prognostic factor of ICU death.Conclusion: Critically ill cancer patients have a high incidence of high BMI; approximately six of every ten patients admitted to the ICU with a serious condition are overweight or show several degrees of obesity. The ICU mortality of the patients with a body mass index < 25 kg/m2 and ≥ 25 kg/m2 was similar. The independent prognostic factor of ICU death in critically ill patients with a BMI ≥ 25 kg/m2 was the number of organ dysfunctions, especially when two or more organs were affected.

Palabras Clave: Incidence. High body mass index. Critically ill cancer patients. Intensive Care Unit. Obesity. Outcome.

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