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Observational Study
Diaphragmatic thickness in chronic obstructive lung disease and relationship with clinical severity parameters
- Nalan Ogan, Yusuf Aydemir, Togay EVrin, Gökçe Kaan Ataç, Ayşe Baha, Burak Katipoğlu, Banu Süzen, and Evrim Eylem Akpınar.
- Department of Pulmonology, Faculty of Medicine, Ufuk University, Ankara, Turkey
- Turk J Med Sci. 2019 Aug 8; 49 (4): 1073-1078.
Background/AimSonographic assessment of diaphragm structure and function would be a useful clinical tool in patients with chronic obstructive pulmonary disease (COPD). Our aim was to determine the muscle thickness of the diaphragm and the usefulness of clinical practice in patients with COPD.Materials And MethodsThe diaphragmatic thickness of 34 COPD patients and 34 healthy subjects was measured during tidal volume (Tmin) and deep inspiration (Tmax) on both sides using a B-mode ultrasound. The body mass index and the modified Medical Research Council (mMRC) index values were reported.ResultsThere was no correlation among TminR (P = 0.134), TminL (P = 0.647), TmaxR (P = 0.721), and TmaxL (P = 0.905) between the patients with COPD and the control group. There was also no significant difference between diaphragmatic thickness and COPD severity, respiratory function (P = 0.410), and frequency of exacerbations (P = 0.881) and mMRC (P = 0.667).ConclusionDiaphragmatic dysfunction in COPD is related to mobility restriction rather than muscle thickness.This work is licensed under a Creative Commons Attribution 4.0 International License.
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