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. 2020 Dec;48(12):e1226-e1231.
doi: 10.1097/CCM.0000000000004645.

Extracorporeal Carbon Dioxide Removal in the Treatment of Status Asthmaticus

Bianca J Bromberger  1 , Cara Agerstrand  2 , Darryl Abrams  2 , Alexis Serra  2 , Dana Apsel  3 , Yuliya Tipograf  1 , Mark E Ginsburg  4 , Michael I Ebright  4 , B Payne Stanifer  4 , Roy Oommen  4 , Matthew Bacchetta  5 , Daniel Brodie  2 , Joshua R Sonett  4
Affiliations

Extracorporeal Carbon Dioxide Removal in the Treatment of Status Asthmaticus

Bianca J Bromberger et al. Crit Care Med. 2020 Dec.

Abstract

Objectives: Venovenous extracorporeal carbon dioxide removal may be lifesaving in the setting of status asthmaticus.

Design: Retrospective review.

Setting: Medical ICU.

Patients: Twenty-six adult patients with status asthmaticus treated with venovenous extracorporeal carbon dioxide removal.

Interventions: None.

Measurements and main results: Demographic data and characteristics of current and prior asthma treatments were obtained from the electronic medical record. Mechanical ventilator settings, arterial blood gases, vital signs, and use of vasopressors were collected from the closest time prior to cannulation and 24 hours after initiation of extracorporeal carbon dioxide removal. Extracorporeal carbon dioxide removal settings, including blood flow and sweep gas flow, were collected at 24 hours after initiation of extracorporeal carbon dioxide removal. Outcome measures included rates of survival to hospital discharge, ICU and hospital lengths of stay, duration of invasive mechanical ventilation and extracorporeal carbon dioxide removal support, and complications during extracorporeal carbon dioxide removal. Following the initiation of extracorporeal carbon dioxide removal, blood gas values were significantly improved at 24 hours, as were peak airway pressures, intrinsic positive end-expiratory pressure, and use of vasopressors. Survival to hospital discharge was 100%. Twenty patients (76.9%) were successfully extubated while receiving extracorporeal carbon dioxide removal support; none required reintubation. The most common complication was cannula-associated deep venous thrombosis (six patients, 23.1%). Four patients (15.4%) experienced bleeding that required a transfusion of packed RBCs.

Conclusions: In the largest series to date, use of venovenous extracorporeal carbon dioxide removal in patients with status asthmaticus can provide a lifesaving means of support until the resolution of the exacerbation, with an acceptably low rate of complications. Early extubation in select patients receiving extracorporeal carbon dioxide removal is safe and feasible and avoids the deleterious effects of positive-pressure mechanical ventilation in this patient population.

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