Author: Shanshan Niu#1,2, Tongyangzi Zhang#1, Wanzhen Li#1, Siwan Wen1, Lei Dong1, Shengyuan Wang1, Wenbo Shi1, Cuiqin Shi1, Yuqin Shen3, Qianchun Huang3, Yaling Tan4, Xianghuai Xu5, Li Yu6,7
Affiliation: <sup>1</sup> Department of Pulmonary and Critical Care Medicine, Tongji Hospital, School of Medicine, Tongji University, No. 389 Xincun Road, Shanghai, 200065, China.
<sup>2</sup> Department of Oncology, Shanghai Yangzhi Rehabilitation Hospital (Shanghai Sunshine Rehabilitation Center), School of Medicine, Tongji University, Shanghai, China.
<sup>3</sup> Department of Cardiac Rehabilitation, Tongji Hospital, School of Medicine, Tongji University, No. 389 Xincun Road, Shanghai, 200065, China.
<sup>4</sup> Department of Neurology, Tongji Hospital, School of Medicine, Tongji University, No. 389 Xincun Road, Shanghai, 200065, China.
<sup>5</sup> Department of Pulmonary and Critical Care Medicine, Tongji Hospital, School of Medicine, Tongji University, No. 389 Xincun Road, Shanghai, 200065, China. 05849@tongji.edu.cn.
<sup>6</sup> Department of Pulmonary and Critical Care Medicine, Tongji Hospital, School of Medicine, Tongji University, No. 389 Xincun Road, Shanghai, 200065, China. 96778@tongji.edu.cn.
<sup>7</sup> Department of Allergy, Tongji Hospital, School of Medicine, Tongji University, No. 389 Xincun Road, Shanghai, 200065, China. 96778@tongji.edu.cn.
Conference/Journal: Respir Res
Date published: 2024 Apr 18
Other:
Volume ID: 25 , Issue ID: 1 , Pages: 169 , Special Notes: doi: 10.1186/s12931-024-02783-5. , Word Count: 275
Background and objective:
To explore the efficacy of deep diaphragmatic breathing training (DEP) in patients with gastroesophageal reflux-induced chronic cough (GERC).
Methods:
A randomized controlled study was conducted involving 60 GERC patients who were divided into the intervention group and the control group (each with 30 patients). Both groups received routine medication treatment for GERC, while the intervention group received DEP training additionally. Both groups were evaluated by cough symptom scores, Hull airway reflux questionnaire (HARQ), gastroesophageal reflux diagnostic questionnaire (GerdQ), generalized anxiety disorder scale-7 (GAD-7), patient health questionnaire-9 (PHQ-9), Pittsburgh sleep quality index (PSQI), the Leicester cough questionnaire (LCQ), as well as capsaicin cough sensitivity testing, B-ultrasound and surface electromyography (sEMG) of the diaphragmatic muscles before and after treatment. The cough resolution rate and changes of the above indictors was compared between the two groups after eight weeks of treatment.
Results:
After eight weeks of treatment, cough symptoms improved in both groups, but the cough resolution rate in the intervention group of 94% was significantly higher than that in the control group of 77% (χ2 = 6.402, P = 0.041). The intervention group showed significant improvements to the control group in GerdQ (6.13(0.35) VS 6.57(0.77)), GAD-7 (0(0;1) VS 1(0;3)), PSQI (2(1;3) VS 4(3;6)), LCQ (17.19(1.56) VS 15.88(1.92)) and PHQ-9 (0(0;0) VS 0(0;3)) after treatment. Compared to control group, sEMG activity of the diaphragmatic muscle was significantly increased in the intervention group after treatment, measured during DEP (79.00(2.49) VS 74.65 (1.93)) and quiet breathing (72.73 (1.96) VS 67.15 (2.48)).
Conclusion:
DEP training can improve cough symptoms as an adjunctive treatment in GERC patients.
Trial registration:
The protocol was registered in February 2, 2022 via the Chinese Clinical Trials Register ( http://www.chictr.org.cn/ ) [ChiCTR2200056246].
Keywords: Chronic cough; Deep diaphragmatic breathing training; Diaphragm; Gastroesophageal reflux; Non-pharmacological treatment.
PMID: 38637797 DOI: 10.1186/s12931-024-02783-5