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Research ArticleOriginal Research

Effectiveness and Safety of Albuterol Solutions with and without Benzalkonium Chloride

Awni M. Al-Subu, Eric Friestrom, Erica Terry, Miranda R Langkamp, Carolyn K. Adams, Rhonda A. Yngsdal-Krenz, Michael R Lasarev, Ryan L DeSanti, Joshua P Vanderloo and Monica C. Bogenschutz
Respiratory Care January 2023, respcare.10747; DOI: https://doi.org/10.4187/respcare.10747
Awni M. Al-Subu
Division of Pediatric Critical Care Medicine, Department of Pediatrics, University of Wisconsin School of Medicine and Public Health, WI, USA.
UWHealth American Family Children's Hospital, UW Health, Madison, WI, USA.
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  • For correspondence: [email protected]
Eric Friestrom
UWHealth University Hospital, Madison, WI, USA.
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Erica Terry
Lucile Packard Children's Hospital, Stanford Medicine Children's Health, Palo Alto, CA, USA.
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Miranda R Langkamp
Pediatric Respiratory Care, American Family Children's Hospital, UW Health, Madison, WI, USA.
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Carolyn K. Adams
Pediatric Respiratory Care, American Family Children's Hospital, UW Health, Madison, WI, USA.
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Rhonda A. Yngsdal-Krenz
Division of Pediatric Critical Care Medicine, Department of Pediatrics, University of Wisconsin School of Medicine and Public Health, WI, USA.
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Michael R Lasarev
Department of Biostatistics & Medical Informatics, University of Wisconsin, Madison, WI, USA.
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Ryan L DeSanti
Department of Pediatrics, Drexel University College of Medicine, St. Christopher's Hospital for Children, Philadelphia, PA, USA.
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Joshua P Vanderloo
UWHealth University Hospital, Madison, WI, USA.
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Monica C. Bogenschutz
UWHealth American Family Children's Hospital, UW Health, Madison, WI, USA.
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Abstract

Introduction: Continuous aerosolized β2-agonist, namely albuterol, is the most commonly used therapy for critical asthma. Benzalkonium chloride is a preservative present in some formulations of aerosolized albuterol solutions that can induce bronchospasm by itself. Recent studies have shown that inhalation of albuterol containing benzalkonium chloride might induce unintended bronchoconstriction and poor outcomes. This study aims to investigate whether using albuterol solutions containing benzalkonium chloride results in prolonged hospital length of stay (LOS).

Methods: A retrospective cohort study of pediatric subjects admitted to the PICU and treated with continuous albuterol. Data was collected and compared before and after a change to benzalkonium chloride-containing solutions. Subjects who were treated with preservative-free solutions were used as control. The primary outcome was PICU and hospital LOS; secondary outcomes included the duration of continuous albuterol and use of adjunctive therapies.

Results: A total of 266 admissions were included in the study. One hundred forty subjects (52.6%) were exposed to benzalkonium chloride. Median age and severity of illness scoring were similar between groups. The initial dose of continuous albuterol was significantly higher in the benzalkonium chloride group median 15 (IQR: 10–20) mg/hr compared to the preservative free group 10 (IQR: 10–20) mg/hr (p<0.001). PICU LOS was longer for the preservative -free group 2.5 (IQR: 1.4, 4.6) days vs. 1.8 (IQR: 1.1, 2.9) days for benzalkonium chloride group (p=0.002). There was no significant difference in duration of continuous albuterol therapy (p = 0.16) or need for adjunctive respiratory support [Heliox (p=0.32), NIPPV(p=0.81), and invasive mechanical ventilation (p=0.57)].

Conclusions: In contrast to published literature showing that benzalkonium chloride may be associated with a longer duration of continuous albuterol nebulization and hospital LOS, our study demonstrated that benzalkonium chloride-containing albuterol is safe for continuous nebulization in critically ill children and not associated with worse outcomes.

Footnotes

  • Corresponding Author:
    Awni M. Al-Subu, Division of Pediatric Critical Care, Department of Pediatrics, 600 Highland Ave, Room H6/535 CSC, Madison, WI 53792, Ph. (608) 263–6071; Fax (608) 265–9243, al-subu{at}pediatrics.wisc.edu
  • Received November 19, 2022.
  • Accepted January 14, 2023.
  • Copyright © 2023 by Daedalus Enterprises

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Respiratory Care: 68 (2)
Respiratory Care
Vol. 68, Issue 2
1 Feb 2023
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Effectiveness and Safety of Albuterol Solutions with and without Benzalkonium Chloride
Awni M. Al-Subu, Eric Friestrom, Erica Terry, Miranda R Langkamp, Carolyn K. Adams, Rhonda A. Yngsdal-Krenz, Michael R Lasarev, Ryan L DeSanti, Joshua P Vanderloo, Monica C. Bogenschutz
Respiratory Care Jan 2023, respcare.10747; DOI: 10.4187/respcare.10747

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Effectiveness and Safety of Albuterol Solutions with and without Benzalkonium Chloride
Awni M. Al-Subu, Eric Friestrom, Erica Terry, Miranda R Langkamp, Carolyn K. Adams, Rhonda A. Yngsdal-Krenz, Michael R Lasarev, Ryan L DeSanti, Joshua P Vanderloo, Monica C. Bogenschutz
Respiratory Care Jan 2023, respcare.10747; DOI: 10.4187/respcare.10747
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