{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,22]],"date-time":"2026-10-22T19:25:35Z","timestamp":1792697135526,"version":"4.5.0"},"reference-count":40,"publisher":"Oxford University Press (OUP)","issue":"2","license":[{"start":{"date-parts":[[2021,1,1]],"date-time":"2021-01-01T00:00:00Z","timestamp":1609459200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/academic.oup.com\/pages\/standard-publication-reuse-rights"}],"content-domain":{"domain":["www.atsjournals.org"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2021,1,15]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Rationale<\/jats:title>\n                    <jats:p>Bronchial thermoplasty (BT) is a bronchoscopic treatment for severe asthma targeting airway smooth muscle (ASM). Observational studies have shown ASM mass reduction after BT, but appropriate control groups are lacking. Furthermore, as treatment response is variable, identifying optimal candidates for BT treatment is important.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Objectives<\/jats:title>\n                    <jats:p>First, to assess the effect of BT on ASM mass, and second, to identify patient characteristics that correlate with BT response.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>Patients with severe asthma (n\u2009=\u200940) were randomized to immediate (n\u2009=\u200920) or delayed (n\u2009=\u200920) BT treatment. Before randomization, clinical, functional, blood, and airway biopsy data were collected. In the delayed control group, reassessment, including biopsies, was performed after 6 months of standard clinical care, followed by BT. In both groups, post-BT data including biopsies were obtained after 6 months. ASM mass (% positive desmin or \u03b1-smooth muscle actin area in the total biopsy) was calculated with automated digital analysis software. Associations between baseline characteristics and Asthma Control Questionnaire and Asthma Quality of Life Questionnaire (AQLQ) improvement were explored.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Measurements and Main Results<\/jats:title>\n                    <jats:p>Median ASM mass decreased by &amp;gt;50% in the immediate BT group (n\u2009=\u200917) versus no change in the delayed control group (n\u2009=\u200919) (P\u2009=\u20090.0004). In the immediate group, Asthma Control Questionnaire scores improved with \u22120.79 (interquartile range [IQR], \u22121.61 to 0.02) compared with 0.09 (IQR, \u22120.25 to 1.17) in the delayed group (P\u2009=\u20090.006). AQLQ scores improved with 0.83 (IQR, \u22120.15 to 1.69) versus \u22120.02 (IQR, \u22120.77 to 0.75) (P\u2009=\u20090.04). Treatment response in the total group (n\u2009=\u200935) was positively associated with serum IgE and eosinophils but not with baseline ASM mass.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>ASM mass significantly decreases after BT when compared with a randomized non\u2013BT-treated control group. Treatment response was associated with serum IgE and eosinophil levels but not with ASM mass.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1164\/rccm.201911-2298oc","type":"journal-article","created":{"date-parts":[[2020,7,28]],"date-time":"2020-07-28T17:54:26Z","timestamp":1595958866000},"page":"175-184","update-policy":"https:\/\/doi.org\/10.1164\/crossmarkpolicies","source":"Crossref","is-referenced-by-count":72,"title":["Bronchial Thermoplasty Induced Airway Smooth Muscle Reduction and Clinical Response in Severe Asthma. The TASMA Randomized Trial"],"prefix":"10.1093","volume":"203","author":[{"given":"Annika W. M.","family":"Goorsenberg","sequence":"first","affiliation":[{"name":"Department of Respiratory Medicine and"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Julia N. 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