Safety and feasibility of bronchial thermoplasty in asthma patients with very severe fixed airflow obstruction: a case series
- PMID: 23252954
- PMCID: PMC3842587
- DOI: 10.3109/02770903.2012.751997
Safety and feasibility of bronchial thermoplasty in asthma patients with very severe fixed airflow obstruction: a case series
Abstract
Objective: Bronchial thermoplasty (BT) can provide relief for patients with severe, uncontrolled asthma despite maximal medical therapy. However, it is unclear whether BT is safe in patients with very severe airflow obstruction.
Methods: We performed BT in eight patients with severe asthma as defined by Expert Panel Report 3 (EPR-3) guidelines who were poorly controlled despite step 5 therapy. Data were available on each subject for 1 year prior to and 15-72 weeks following BT.
Results: The mean (±SEM) pre-bronchodilator forced expiratory volume in one second (FEV(1)) prior to BT was 51.8 ± 8.6% of predicted, and the mean (±SEM) number of hospitalizations for asthma in the year prior to BT was 2.9 ± 1.2. No subject had an unexpected severe adverse event due to BT. Among the eight patients with follow-up of at least 15 weeks, there was no significant decline in FEV(1) (p = .4).
Conclusion: We suggest that BT may be safe for asthma patients with severe airflow obstruction and higher hospitalization rates than previously reported.
Conflict of interest statement
Declaration of Interest
Dr. Hogarth has given three industry-funded lectures on Bronchial Thermoplasty. The remaining authors report no conflicts of interest.
References
-
- Cox G, Miller JD, McWilliams A, Fitzgerald JM, Lam S. Bronchial thermoplasty for asthma. Am J Respir Crit Care Med. 2006 May 1;173(9):965–969. - PubMed
-
- Cox G, Miller JD, McWilliams A, Fitzgerald JM, Lam S. Bronchial thermoplasty for asthma. Am J Respir Crit Care Med. 2006;173(9):965–969. Epub 2006/02/04. PubMed PMID: 16456145. - PubMed
-
- Pavord ID, Cox G, Thomson NC, Rubin AS, Corris PA, Niven RM, Chung KF, Laviolette M. RISA Trial Study Group. Safety and efficacy of bronchial thermoplasty in symptomatic, severe asthma. Am J Respir Crit Care Med. 2007;176(12):1185–1191. Epub 2007/09/29. PubMed PMID: 17901415. - PubMed
-
- Cox G, Thomson NC, Rubin AS, Niven RM, Corris PA, Siersted HC, Olivenstein R, Pavord ID, McCormack D, Chaudhuri R, Miller JD, Laviolette M. AIR Trial Study Group. Asthma control during the year after bronchial thermoplasty. N Engl J Med. 2007;356(13):1327–1337. Epub 2007/03/30. PubMed PMID: 17392302. - PubMed
-
- Castro M, Rubin AS, Laviolette M, Fiterman J, De Andrade Lima M, Shah PL, Fiss E, Olivenstein R, Thomson NC, Niven RM, Pavord ID, Simoff M, Duhamel DR, McEvoy C, Barbers R, Ten Hacken NH, Wechsler ME, Holmes M, Phillips MJ, Erzurum S, Lunn W, Israel E, Jarjour N, Kraft M, Shargill NS, Quiring J, Berry SM, Cox G. AIR2 Trial Study Group. Effectiveness and safety of bronchial thermoplasty in the treatment of severe asthma: a multi-center, randomized, double-blind, sham-controlled clinical trial. Am J Respir Crit Care Med. 2010;181(2):116–124. Epub 2009/10/10. PubMed PMID: 19815809; PubMed Central PMCID: PMC3269231. - PMC - PubMed
Publication types
MeSH terms
Grants and funding
LinkOut - more resources
Full Text Sources
Medical