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Admission inferior vena cava measurements are associated with mortality after hospitalization for acute decompensated heart failure.
J Hosp Med. 2016 Nov;11(11):778-784
Authors: Cubo-Romano P, Torres-Macho J, Soni NJ, Reyes LF, Rodríguez-Almodóvar A, Fernández-Alonso JM, González-Davia R, Casas-Rojo JM, Restrepo MI, de Casasola GG
Abstract
BACKGROUND: Prognostication of patients hospitalized with acute decompensated heart failure (ADHF) is important to patients, providers, and healthcare systems. Few bedside tools exist to prognosticate patients hospitalized with ADHF.
OBJECTIVE: The objective of this study was to assess the relationship between inferior vena cava (IVC) diameter and postdischarge mortality in patients hospitalized with ADHF.
DESIGN: Prospective observational study.
SETTING: A 247-bed urban teaching hospital in Spain PATIENTS: Ninety-seven patients hospitalized with ADHF.
INTERVENTION: None.
MEASUREMENTS: The IVC diameter and collapsibility were measured by a hospitalist at the time of admission and discharge. Primary outcome was 90-day all-cause mortality. Secondary outcomes were readmission rates at 90 and 180 days, and 180-day all-cause mortality. Patients were followed for 180 days.
RESULTS: Data from 80 patients were analyzed. From admission to discharge, a significant improvement in IVC maximum (IVCmax ) diameter (2.12 vs 1.87 cm; P < 0.001) and IVC collapsibility (25.7% vs 33.1%; P < 0.001) was seen in the total study cohort. During the 90-day follow-up period, 11 patients (13.7%) died. An admission IVCmax diameter ≥1.9 cm was associated with a higher mortality rate at 90 days (25.4% vs 3.4%; P = 0.009) and 180 days (29.3% vs 3.4%; P = .003). In a multivariate Cox proportional hazards regression analysis, admission IVCmax diameter was an independent predictor of 90-day mortality (hazard ratio [HR]: 5.88; 95% confidence interval [CI]: 1.21-28.10; P = 0.025) and 90-day readmission (HR: 3.20; 95% CI: 1.24-8.21; P = 0.016).
CONCLUSION: In patients hospitalized with acute decompensated heart failure, a dilated IVC by bedside ultrasound at the time of admission is associated with a higher 90-day mortality after hospitalization. Journal of Hospital Medicine 2016;11:778-784. © 2016 Society of Hospital Medicine.
PMID: 27264844 [PubMed - indexed for MEDLINE]