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Infrequent use of nighttime dialysis for emergency admission due to worsening heart failure in patients on maintenance hemodialysis

In the emergency admission due to worsening heart failure (HF) in patients on maintenance hemodialysis, emergent dialysis may be indicated, which increases personnel expenses. To clarify the characteristics and in‐hospital management of the patients, we conducted a multicenter retrospective study including 142 patients on maintenance hemodialysis emergently admitted for worsening HF (71.6 ± 9.2 years, 69.0% male, 44.4% HF with preserved [≥50%] ejection fraction). The interval between last hemodialysis and admission was long (median 55 h), suggesting that fluid accumulation triggered HF events. Although most patients (73.9%) were admitted in the nighttime (5 p.m. to 9 a.m.), only 17.9% of them needed nighttime dialysis and were managed medically until the first in‐hospital dialysis, with the use of noninvasive positive pressure ventilation in 45.1% and oxygen supplementation in 95.8%. While patients on hemodialysis with worsening HF were frequently admitted in the nighttime, nighttime dialysis was indicated in a limited population.