Related Experiment Video
Updated: Mar 1, 2026

Bronchial Thermoplasty: A Novel Therapeutic Approach to Severe Asthma
Published on: November 4, 2010
Adjunct Therapies for Refractory Status Asthmaticus in Children
1Division of Pediatric Critical Care Medicine, Department of Pediatrics, Duke Children's Hospital, Durham, North Carolina. kyle.rehder@duke.edu.
This review examines adjunct therapies for severe asthma exacerbations in children when initial treatments fail. It provides evidence for treatments like magnesium and ketamine to manage refractory status asthmaticus.
Area of Science:
- Pediatric Emergency Medicine
- Pulmonology
- Critical Care
Background:
- Asthma exacerbations frequently lead to emergency department visits in children.
- Refractory asthma flares can necessitate hospital admission and intensive care unit (ICU) stays.
- Standard initial therapies include inhaled beta-agonists and systemic corticosteroids.
Purpose of the Study:
- To review the evidence supporting various adjunct therapies for pediatric status asthmaticus.
- To present the physiologic basis for these treatments.
- To offer a care map for escalating therapy in severe cases.
Main Methods:
- Literature review of adjunct therapies for status asthmaticus.
- Summarization of supporting data and physiologic rationale.
- Development of a suggested care escalation map.
Main Results:
- Evidence for adjunct therapies such as ipratropium, magnesium, heliox, ketamine, and noninvasive ventilation varies.
- Data supporting intravenous beta-agonists, methylxanthines, antibiotics, inhaled anesthetics, and ECMO is often limited or conflicting.
- A structured approach to escalating care is proposed.
Conclusions:
- Adjunct therapies for pediatric status asthmaticus lack robust supporting data in many cases.
- A systematic approach is needed to guide the use of these therapies.
- Further research is required to clarify the efficacy of various adjunct treatments.
Related Concept Videos
Asthma-IV: Diagnostic and Management
Clinical Assessment for Asthma:
This is the first step in diagnosing and managing asthma. It includes:
Antiasthma Drugs: Leukotriene Modifiers
Leukotriene modifiers work through two distinct mechanisms:
Adrenergic Agonists: Therapeutic Uses
Emergency and Intensive Care Unit (ICU) applications: Pressor agents increase blood pressure, heart rate, and contractility in shock and organ failure situations. Dopamine can induce vasodilation and stimulate adrenoceptors. Endogenous catecholamines are effective in treating cardiogenic shock. α2-agonists like clonidine can reverse anesthesia-induced hypertension.
Allergies and...
Drugs Used in Lower Respiratory Disorders: Overview
Bronchodilators, the first step of respiration enhancement, come in various forms, each with its own mechanism...
Antiasthma Drugs: Mast Cell Stabilizers and Anti-IgE Drugs
Mast cell stabilizers, such as cromolyn (also known as sodium cromoglycate) and nedocromil (Tilade), are effective drugs in asthma management. These stabilizers hinder histamine release by skillfully obstructing the activation of mast cells and other cellular entities. Notably, they navigate this task without...
Antiasthma Drugs: β2-Adrenoceptor Agonists
One class of bronchodilators includes β2-adrenoceptor agonists. These agents target the β2-adrenoceptors located on bronchial smooth muscle cells. By stimulating these receptors, β2-agonists induce...

