Chest · 2025
Mass Medical Evacuations to Decrease the Intensive Care Burden: Results From the Mass Transfer of COVID-19 Patients (TRANSCOV) Cohort Study.
СтатьяМногоцентровое исследованиеНазвание и аннотация: Перевод пока не подготовлен
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Grimaud Olivier, Leray Emmanuelle, Bayat Sahar, Fermanian Christophe, Martin Sylvie, Maumy Myriam, Philippe Jean-Marc, Maury Eric, Ricard-Hibon Agnès, Tattevin Pierre, Noizet Marc, Braun François, Dolz Manuel, Sanchez Marc-Antoine, Coignard-Biehler Hélène, Prieto Nathalie, Delamare Hugues, Cayré Virginie, Carli Pierre, Vuagnat Albert, Pottecher Julien, TRANSCOV Study Group
Аннотация
BACKGROUND: In a context of overwhelming demand, mass transfers between ICUs were organized in France during the first COVID-19 epidemic wave (spring 2020). According to early reports, transferred patients experienced a 3- to 4-fold lower ICU case fatality. It is not known whether this difference stems only from the selection of healthier patients for transfer.
RESEARCH QUESTION: Is the 28-day ICU case fatality of transferred patients different from that of matched control (not transferred) patients?
STUDY DESIGN AND METHODS: This was a multicenter retrospective cohort study that included 285 transferred patients and 667 control (not transferred) patients admitted simultaneously (± 2 days) to the same origin ICU and were alive 5 days after the transfer date. The 28-day ICU case fatality and clinical events during ICU stay were compared in transferred and control patients.
RESULTS: At ICU admission, age, COVID-19 severity, comorbidities, and Simplified Acute Physiology Score II were similar, but transferred patients were lighter (81 vs 89 kg, P < .0001) and more autonomous than the matched control patients (64.5% vs 55.0%, P = .01). Case fatality was approximately 7-fold lower in transferred patients (adjusted incidence rate ratio, 0.14; 95% CI, 0.10-0.19). ICU stay was longer and delirium, psychiatric disorders, and neuromuscular blockade exposure were more frequent in transferred patients than control patients. Conversely, acute kidney injury was more frequent in control patients (51.5% vs 37.7%, P < .0001).
INTERPRETATION: Although the selection of healthier patients likely contributed to better survival, removal from an overcrowded care environment probably also explains the large survival benefit associated with transfer. By reducing workload, mass transfers might have also benefited patients who remained in origin ICUs. Organizing mass transfers as early as possible may be an appropriate strategy for mitigating the impact of an overwhelming intensive care demand.
RESEARCH QUESTION: Is the 28-day ICU case fatality of transferred patients different from that of matched control (not transferred) patients?
STUDY DESIGN AND METHODS: This was a multicenter retrospective cohort study that included 285 transferred patients and 667 control (not transferred) patients admitted simultaneously (± 2 days) to the same origin ICU and were alive 5 days after the transfer date. The 28-day ICU case fatality and clinical events during ICU stay were compared in transferred and control patients.
RESULTS: At ICU admission, age, COVID-19 severity, comorbidities, and Simplified Acute Physiology Score II were similar, but transferred patients were lighter (81 vs 89 kg, P < .0001) and more autonomous than the matched control patients (64.5% vs 55.0%, P = .01). Case fatality was approximately 7-fold lower in transferred patients (adjusted incidence rate ratio, 0.14; 95% CI, 0.10-0.19). ICU stay was longer and delirium, psychiatric disorders, and neuromuscular blockade exposure were more frequent in transferred patients than control patients. Conversely, acute kidney injury was more frequent in control patients (51.5% vs 37.7%, P < .0001).
INTERPRETATION: Although the selection of healthier patients likely contributed to better survival, removal from an overcrowded care environment probably also explains the large survival benefit associated with transfer. By reducing workload, mass transfers might have also benefited patients who remained in origin ICUs. Organizing mass transfers as early as possible may be an appropriate strategy for mitigating the impact of an overwhelming intensive care demand.