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Heart failure, post-hospital mortality and renal function in Tanzania: A prospective cohort study.
International Journal of Cardiology 2017 September 16
OBJECTIVE: To determine one-year, post-hospital mortality and the predictors of mortality in Tanzanian adults with heart failure (HF) compared to other admitted adults.
METHODS: In this prospective cohort study we consecutively enrolled medical inpatients admitted during a 3-month period, screened for HF and followed until 12 months after hospital discharge. Standardized history, physical examination, echocardiography and laboratory investigations were obtained during hospital presentation. The primary outcome was one-year post-discharge mortality. The secondary outcome was in-hospital mortality. Cox regression adjusted for age and sex was used.
RESULTS: During the study period, we enrolled 558 adults; 145 had HF and 107 of these survived until discharge. Patients with HF had a higher one-year post-hospital discharge mortality than all other diagnoses (62/107 (57.9%) vs 150/343 (43.7%), respectively, HR=1.57[1.13-2.18]). In-hospital mortality was similar. Markers of renal disease were more common in adults with HF (40/107 (37.4%) and were the strongest independent predictors of post-hospital mortality: low eGFR (HR=2.94[1.62-5.31]) and proteinuria (HR=2.03, [95%CI 1.13-3.66]). No patients discharged with the combination of low eGFR/proteinuria survived to the one-year endpoint. Of note, 79/145 (54.5%) of adults admitted with HF were newly diagnosed during hospital admission.
CONCLUSIONS: Over half of adults discharged with HF died within 12months after discharge. Adults with HF had higher post-hospital mortality compared to other medical inpatients. Markers of renal disease were the strongest predictor of this mortality. Innovative interventions are needed to reduce post-hospital mortality in adults with HF and should focus on those with renal disease.
METHODS: In this prospective cohort study we consecutively enrolled medical inpatients admitted during a 3-month period, screened for HF and followed until 12 months after hospital discharge. Standardized history, physical examination, echocardiography and laboratory investigations were obtained during hospital presentation. The primary outcome was one-year post-discharge mortality. The secondary outcome was in-hospital mortality. Cox regression adjusted for age and sex was used.
RESULTS: During the study period, we enrolled 558 adults; 145 had HF and 107 of these survived until discharge. Patients with HF had a higher one-year post-hospital discharge mortality than all other diagnoses (62/107 (57.9%) vs 150/343 (43.7%), respectively, HR=1.57[1.13-2.18]). In-hospital mortality was similar. Markers of renal disease were more common in adults with HF (40/107 (37.4%) and were the strongest independent predictors of post-hospital mortality: low eGFR (HR=2.94[1.62-5.31]) and proteinuria (HR=2.03, [95%CI 1.13-3.66]). No patients discharged with the combination of low eGFR/proteinuria survived to the one-year endpoint. Of note, 79/145 (54.5%) of adults admitted with HF were newly diagnosed during hospital admission.
CONCLUSIONS: Over half of adults discharged with HF died within 12months after discharge. Adults with HF had higher post-hospital mortality compared to other medical inpatients. Markers of renal disease were the strongest predictor of this mortality. Innovative interventions are needed to reduce post-hospital mortality in adults with HF and should focus on those with renal disease.
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