In:
Respiration, S. Karger AG, Vol. 99, No. 1 ( 2020), p. 50-55
Abstract:
〈 b 〉 〈 i 〉 Background: 〈 /i 〉 〈 /b 〉 Bronchoscopic lung volume reduction using the Zephyr® endobronchial valve (EBV) is a guideline treatment for patients with advanced emphysema. To achieve volume reduction, it is crucial that there is absence of collateral ventilation and a complete occlusion of the target lobe. While 3 EBV sizes (4.0; 4.0-LP; and 5.5) are currently available to accommodate all airway sizes, local anatomical variations sometimes warrant a valve with a wide diameter but shorter length. To address this, a new “low profile” 5.5-LP EBV has been introduced. 〈 b 〉 〈 i 〉 Objective: 〈 /i 〉 〈 /b 〉 In this study, we evaluated the feasibility, safety, and efficacy of this new 5.5-LP EBV. 〈 b 〉 〈 i 〉 Methods: 〈 /i 〉 〈 /b 〉 This was a single-center, prospective, open-label study. Patients were included if eligible for valve treatment with a local anatomy suitable to place at least one 5.5-LP EBV. Feasibility of placement of the 5.5-LP EBV was reported. Safety, CT parameters, pulmonary function tests, and St. George’s Respiratory Questionnaire (SGRQ) were assessed at baseline and 6 weeks after treatment. 〈 b 〉 〈 i 〉 Results: 〈 /i 〉 〈 /b 〉 We included 30 patients with severe chronic obstructive pulmonary disease (forced expiratory volume in 1 s [FEV 〈 sub 〉 1 〈 /sub 〉 ] 29 ± 10%; [RV] 242 ± 46%; and SGRQ 56 ± 11 points). Besides the regular EBV sizes, a median of 1 (1–3) of the new 5.5-LP EBV was placed. No valve adjustment was needed during the initial procedure. A single asymptomatic small pneumothorax was observed in 1 patient. In 4 patients, a revision bronchoscopy was performed due to absence of clinical benefit. In 1 patient, this was related to a dislocation of the 5.5-LP EBV. Clinically relevant improvements were seen in target lobar volume reduction (–1,554 mL), FEV 〈 sub 〉 1 〈 /sub 〉 +39%, RV –960 mL, and SGRQ –18 points. 〈 b 〉 〈 i 〉 Conclusions: 〈 /i 〉 〈 /b 〉 In this first in human study, the 5.5-LP EBV could be placed into wide segments with a shorter landing length without unexpected complications and with good efficacy outcomes.
Type of Medium:
Online Resource
ISSN:
0025-7931
,
1423-0356
Language:
English
Publisher:
S. Karger AG
Publication Date:
2020
detail.hit.zdb_id:
1464419-8
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