Evaluation of the Benefits of Hypnosis in Improving the Quality of Life of Patients With Chronic Obstructive Pulmonary Disease (COPD) Suffering From Persistent Dyspnea

Chronic Obstructive Pulmonary Disease (COPD), Dyspnea

Chronic Obstructive Pulmonary Disease (COPD), Dyspnea,, Hypnosis

Chronic Obstructive pulmonary Disease (COPD) is a common progressive disorder characterized by persistent airflow limitation. It is usually caused by exposure to tobacco smoke, toxic particles, or toxic gases. COPD is characterized by cough, sputum production, and dyspnea, which is the cardinal symptom and is included in the criteria for severity. Dyspnea is a major source of suffering and disability, especially when it persists at rest. Despite proper medical treatment, many patients continue to suffer from persistent dyspnea that significantly impairs their daily functioning and quality of life. Complementary approaches such as yoga and relaxation techniques are therefore recommended by some experts. Hypnosis is one of these practices. It has been shown to be effective in the management of both acute and chronic pain and it can abolish several types of experimentally induced dyspnea in healthy volunteers. In adults with COPD, a single hypnosis session has been shown to reduce anxiety immediately, though only temporarily. However, according to a recent retrospective study, a median of three hypnosis sessions increases the distance covered in the 6-minute walk test in COPD patients. The investigators therefore hypothesize that several hypnosis sessions will improve the quality of life of adult outpatients with COPD who suffer from persistent dyspnea. The study plans to recruit 154 patients with severe dyspnea (mMRC(modified Medical Research Council Dyspnea Scale) 3 or 4). They will be randomly assigned to either the experimental group or the control group. Patients in the experimental group will participate in 5 sessions of medical hypnosis spaced 7 ± 2 days apart. The first hypnosis session will take place at the end of the enrollment visit. The final session will be held via teleconsultation. Four standardized telephone calls, spaced 7 ± 2 days apart, will replace the hypnosis sessions in the control group. The primary outcome of the study will be the evolution of quality of life, assessed 6 weeks after the start of the study as compared to baseline. Secondary outcomes will focus on changes in exercise capacity, dyspnea, anxiety, depression, dyspnea-related catastrophizing, self-efficacy, and pleasure in life.

The study aims at assessing the effect of medical hypnosis on the quality of life of dyspneic COPD outpatients. It plans to recruit 154 COPD outpatients with severe dyspnea (mMRC 3 or 4). They will have to be treated in accordance with the GOLD (Global Initiative for Chronic Obstructive Lung Disease) 2024 guidelines, exept for pulmonary rehabilitation that is not required. Inclusion and non-inclusion criteria are provided below. Patients will be randomly assigned to either the experimental or the control group. Patients in the experimental group will participate in 5 sessions of medical hypnosis spaced 7 ± 2 days apart. The first hypnosis session will take place at the end of the enrollment visit. The final session will be held via teleconsultation. Four standardized telephone calls, spaced 7 ± 2 days apart, will replace the hypnosis sessions in the control group. The objectives of the study will be assessed 6 weeks after enrollment. The primary objective of this study will be to evaluate the benefit of hypnosis in improving the quality of life of outpatients with COPD and persistent dyspnea, compared to a control group that will receive support through standardized telephone calls but no hypnosis. The primary outcome will be the change in the total score of the St George's Respiratory Questionnaire (SGRQ) which assesses respiratory related quality of life, measured 6 weeks after randomization. The secondary objectives of the study will be to evaluate the benefit of hypnosis in patients with COPD and persistent dyspnea compared to the control group on the following outcomes: 1. The components of quality of life in COPD: symptoms, activity, and impact on daily life. Those components are part of the SGRQ. 2. The ability to engage in physical activity. It will will be assessed with the 6-min walk test. 3. Dyspnea and its affective, sensory, and emotional dimensions. They will be assessed using the multidimensional dypnea profile (MDP) questionnaire. d) Dyspnea in activities of daily living. It will be assessed using the London Chest Activity of Daily Living (LCADL) scale. e) The level of anxiety. It will be assessed using the Hospital Anxiety and Depression Scale (HADS). f) The level of depression. It will also be assessed using the Hospital Anxiety and Depression Scale (HADS). g) The level of catastrophizing about dyspnea. It will be assessed using the breathlessness catastrophizing scale for chronic obstructive pulmonary disease. h) The level of self-efficacy. It will be assessed using the COPD Self-Efficacy Scale. i) The level of pleasure (or the level of anhedonia). It will be assessed using the Snaith-Hamilton Pleasure Scale.

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