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Predictors of excess fluid volume in hemodialysis patients: an observational study
Maria Isabel da Conceição Dias Fernandes1, Jéssica Dantas de Sá Tinôco2, Renata Marinho Fernandes1
1Universidade Federal do Rio Grande do Norte. Natal, Rio Grande do Norte, Brazil.
Objectives:
to assess risk factors for excess fluid volume in hemodialysis patients.
Methods:
a retrospective case-control study was conducted. A total of 392 patients (196 cases and 196 controls) from two hemodialysis centers were included. Sociodemographic data and 23 risk factors for excess fluid volume were assessed using a data collection form. Data were analyzed using a multivariate logistic regression model.
Results:
the insufficient knowledge (OR=2.06), excessive fluid intake (OR=2.33), inadequate fluid removal during hemodialysis (OR=2.62) and excessive sodium intake (OR=1.91) risk factors may increase the chance of occurrence of excess fluid volume in hemodialysis patients by approximately two times. Education level (OR=0.95) and age (OR=0.97) are protective factors for excessive fluid volume.
Conclusions:
knowing these risk factors may help nurses with accurate and rapid diagnostic inference of the risk of excessive fluid volume.
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