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Effects of Pulmonary Rehabilitation on Functional and Health Status Measures in Pulmonary Fibrosis

Completed
Conditions
Pulmonary Fibrosis
Interventions
Other: Pulmonary Rehabilitation
Registration Number
NCT03542318
Lead Sponsor
University of Malta
Brief Summary

The inclusion of Pulmonary Rehabilitation (PR) as part of the management of pulmonary fibrosis although being highly recommended and recommended in guidelines still sees studies exploring the outcomes from such an intervention limited. The present study aims to contribute to the available literature by investigating the effects of a high intensity, 12week PR programme on functional and quality of life measures in patients with a diagnosis of pulmonary fibrosis.

Detailed Description

The inclusion of Pulmonary Rehabilitation (PR) as part of the management of pulmonary fibrosis although being highly recommended and recommended in guidelines still sees studies exploring the outcomes from such an intervention limited. The present study aims to contribute to the available literature by investigating the effects of a high intensity, 12week PR programme on functional and quality of life measures in patients with a diagnosis of pulmonary fibrosis. This study reports outcomes of an observational, quasi experimental type of study. A total of 120 participants were recruited: 60 patients formed part of the active group, another 60 patients were enrolled in an inactive group. Each participant was classified according to the modified Medical Research Council dyspnoea scale and placed in one of 5 categories (0 to 4) according to self-perceived breathlessness during daily activities. The following outcomes were measured: Lung function tests including plethysmography and diffusion capacity of carbon monoxide (DLCO), functional tests (6-minute walking test, Dyspnoea Borg Scale) and Health status measures (St George's Respiratory Questionnaire and HAD score).

Recruitment & Eligibility

Status
COMPLETED
Sex
All
Target Recruitment
120
Inclusion Criteria
  • Patients with a confirmed diagnosis of Pulmonary Fibrosis
  • Patients had to be medically stable to participate in such a programme
Exclusion Criteria
  • Any orthopaedic or neurological condition affecting mobility
  • If they required oxygen therapy this had to be used

Study & Design

Study Type
OBSERVATIONAL
Study Design
Not specified
Arm && Interventions
GroupInterventionDescription
Active group (Experimental)Pulmonary RehabilitationTotal of 60 patients were enrolled. All patients were referred for PR from the outpatient clinics of the local general hospital. Pulmonary fibrosis was confirmed through a high resonance computed tomography scan and pulmonary function testing. Participants who required modifications to their drug therapy due to exacerbations were excluded from the study. Each participant was classified according to the modified Medical Research Council dyspnoea scale
Primary Outcome Measures
NameTimeMethod
6 minute walk testThe 6MWD shall be measures at baseline and on completion of the programme at 12weeks

The six-minute walking distance test (6MWD) was performed according to the American Thoracic Society guidelines (ATS Committee on Proficiency Standards for Clinical Pulmonary Function Laboratories 2002). Each patient was instructed to walk as rapidly as possible in a 30-meter corridor for the time of this test. The test was repeated twice with an interval of 30 minutes. The longest distance on a 6MWT and oxygen saturation were utilized to measure exercise capacity. Dyspnoea was scored using the Borg Category Ratio Scale (Borg 1982) measuring dyspnoea symptoms before and after the test.

Secondary Outcome Measures
NameTimeMethod
Hospital Anxiety and Depression scoreThis outcome shall be measured at baseline and on completion of the PR programme at 12weeks

The HAD scale was specifically developed for recognition of anxiety and depression in patients with somatic conditions. It is a validated tool which explores the symptom severity in patient with chronic diseases who have anxiety and depressive related signs. The HAD scale is divided into an anxiety (HADS-A) and a depression subscale (HADS-D) both of which contain seven items, rated 0-3, with the highest possible score for both domains being that of 21. Scores less than 8 indicate no clinical distress; scores between 8 to 10 indicate possible psychiatric morbidity and scores of 11 or more indicate pathologic levels of distress.

St George's Respiratory QuestionnaireThis outcome shall be measured at baseline and on completion of the PR programme at 12weeks

The SGRQ is a widely used questionnaire to assess health related quality of life, due to its specificity to respiratory diseases. This questionnaire consists of 50 items, separated into three domains: symptoms, activity and impact domains. Scores range from 0 to l00 for the three subscales with a summary total score. Higher scores indicate worse health status; 0 indicates no impairment and 100 indicates maximal impairment.

Trial Locations

Locations (1)

Faculty of Health Sciences, Physiotherapy Department

🇲🇹

Multiple Locations, Malta

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