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Analysis of the acid-base disorders of critically ill patients in the medical intensive care unit / 대한내과학회지
Korean Journal of Medicine ; : 399-406, 2007.
Artigo em Coreano | WPRIM | ID: wpr-22166
ABSTRACT

BACKGROUND:

Acid-base imbalances are common in critically ill patients; however, the incidence of acid-base imbalances in the medical intensive care units has not been fully determined. In this study, we investigated the incidence and the type of acid-base imbalances in critically ill patients and we assessed which variables were associated with the patients' outcome.

METHODS:

One hundred eighty-seven patients (122 men, age 61.2+/-12.8 years) were enrolled. All the patients were admitted to the medical intensive care unit between January 2005 and December 2005. All the data sets included simultaneous measurements of an arterial blood gas with base excess, the serum electrolytes, the anion gap and the APACHE II scores.

RESULTS:

The mortality rate was 56.7%. The incidence of acid-base imbalances was as follows 25.1% were single disorders that existed with only a single primary acid-base imbalance, 48.7% were double disorders, 13.4% were triple disorders and 12.8% were normal (no disorders). The incidence of metabolic acidosis was 57.8% and the mortality rate was not different according to the type of acid-base imbalances. There were significant differences between the nonsurvivors and survivors according to the pH (7.34 vs. 7.41, respectively), HCO(-)3 (20.68 mmol/L vs. 25.90 mmol/L, respectively), ECF base excess (-5.19 vs. 1.19, respectively), the anion gap (18.57 mmol/L vs. 13.77 mmol/L, respectively), the corrected anion gap (23.63 mmol/L vs. 17.96 mmol/L, respectively), the serum albumin (2.37 g/dL vs. 2.74 g/dL, respectively), and the APACHE II scores (20.7 vs 17.2, respectively). However, on the Cox proportional hazard regression analysis, only the APAHCE II scores affected the patients' outcome.

CONCLUSIONS:

There were diverse acid-base imbalances in the critically ill patients and the incidence of metabolic acidosis was highest among the acid-base imbalances. The best predictor of the patients' outcome was the APACHE II scores.
Assuntos

Texto completo: DisponíveL Índice: WPRIM (Pacífico Ocidental) Assunto principal: Equilíbrio Ácido-Base / Desequilíbrio Ácido-Base / Acidose / Albumina Sérica / Incidência / Mortalidade / Estado Terminal / Sobreviventes / APACHE / Cuidados Críticos Tipo de estudo: Estudo de incidência / Estudo prognóstico Limite: Humanos / Masculino Idioma: Coreano Revista: Korean Journal of Medicine Ano de publicação: 2007 Tipo de documento: Artigo

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Texto completo: DisponíveL Índice: WPRIM (Pacífico Ocidental) Assunto principal: Equilíbrio Ácido-Base / Desequilíbrio Ácido-Base / Acidose / Albumina Sérica / Incidência / Mortalidade / Estado Terminal / Sobreviventes / APACHE / Cuidados Críticos Tipo de estudo: Estudo de incidência / Estudo prognóstico Limite: Humanos / Masculino Idioma: Coreano Revista: Korean Journal of Medicine Ano de publicação: 2007 Tipo de documento: Artigo