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Indian Journal of Critical Care Medicine
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 RESEARCH ARTICLE
Year : 2018  |  Volume : 22  |  Issue : 11  |  Page : 767--772

Cumulative fluid balance and outcome of extubation: A prospective observational study from a general intensive care unit


Department of Critical Care Medicine, Fortis Escorts Hospital, Faridabad, Haryana, India

Correspondence Address:
Dr. Supradip Ghosh
Department of Critical Care Medicine, Fortis Escorts Hospital, Neelam Bata Road, Faridabad - 121 001, Haryana
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/ijccm.IJCCM_216_18

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Introduction: This study was aimed to examine the impact of cumulative fluid balance on extubation failure following planned extubation. Methods: Consecutive adult patients (≥16 years) admitted in a general intensive care unit (ICU), between January 1, 2016, and December 31, 2017, mechanically ventilated for at least 24 h and extubated following successful spontaneous breathing trial, were prospectively evaluated. Results: The cumulative fluid balance at extubation was significantly higher in the extubation failure group (median 4336.5 ml vs. 2752 ml, P = 0.036). The area under the receiver operating characteristic curve for cumulative balance to predict extubation failure was 0.6 (95% confidence interval [CI]: 0.504–0.697) with optimal cutoff value of 3490 ml (sensitivity and specificity of 60% and 59.5%, respectively). Other risk factors for extubation failure identified by univariate analysis were the duration of mechanical ventilation at extubation, chronic kidney or neurological disease, heart rate, and respiratory rate. In multiple regression model, the cumulative fluid balance >3490 ml retained its predictive potential for extubation failure (odds ratio = 2.191, 95% CI = 1.015–4.730). Conclusions: Our result validates the association between higher cumulative fluid balance and extubation failure in an Indian ICU. A future randomized control trial may examine any role of therapeutic diuresis/ultrafiltration in preventing failed extubation in patients who fulfill the readiness to wean criteria with cumulative net fluid balance ≥3490 ml.






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