Domiciliary non-invasive ventilation (NIV) is a standard care for improving survival rates of selected patients with chronic hypercapnic respiratory failure (CHRF) and to improve the patients' hypercapnia, sleep quality, health-related quality of life (QoL). Adherence is an important factor affecting clinical effectiveness of domiciliary NIV. Our previous study has noted the associations between poor domiciliary NIV adherence and increased number of clinical adverse events (p = 0.004) and increased hospitalization requiring acute NIV salvage (p = 0.042). However, there are very limited studies on adherence to domiciliary NIV in patients with CHRF. The only interventional study was a single-group pre-test post-test study and lack of a theoretical framework for guiding the intervention. This study is employing an Information-Motivation-Behavioral skills (IMB) model-based intervention to improve inhalation adherence in a group of chronic obstructive pulmonary disease (COPD) patients.
The study design is a multi-center, 2-arm single-blind randomized controlled trial. The intervention group will receive an Information-Motivation-Behavioral (IMB) model-based intervention while the control group will receive the usual care. Usual Care: There is a respiratory team of health care professionals responsible for patients requiring domiciliary non-invasive ventilation (NIV). The team is led by a Medical Consultant and with respiratory nurse(s) as team members who are responsible for assisting patients or their family to initiate domiciliary NIV and teaching the relevant technical skills. The nurse will provide an one-hour face-to-face session to introduce the choices of domiciliary NIV and teach the patient or his/her family on how to operate and maintain the ventilator, interface and accessories, and also how to handle the common problems such as leakage and pressure sore in hospital before discharge. Commercial leaflet or booklet according to the choice of ventilator with information of the ventilator, interface, accessories and the ventilator company will be provided to the patient. Intervention: There will be a respiratory team, same as the usual care, responsible for patients requiring domiciliary NIV in the intervention group. The IMB model-based intervention of this study is a six-week program consisted of a one-hour face-to-face home visit in the first week, two 20-minute telephone follow-ups in the second and fourth weeks, and a half-hour face-to-face follow-up at hospital in the sixth week, and a telephone consultation hotline during office hours.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
SUPPORTIVE_CARE
Masking
DOUBLE
Enrollment
124
A six-week programme
he nurse will provide an one-hour face-to-face session to introduce the choices of domiciliary NIV and teach the patient or his/her family on how to operate and maintain the ventilator, interface and accessories, and also how to handle the common problems
Department of Medicine and Geriatrics, United Christian Hospital
Hong Kong, Hong Kong
Domiciliary NIV adherence
the records from the software fitted on the subject's NIV machine for the past two weeks will be reviewed to determine adherence or non-adherence, and assessed for the percentage of days with usage of at least 4 hours per night and the mean of daily use.
Time frame: baseline
Domiciliary NIV adherence
the records from the software fitted on the subject's NIV machine for the past two weeks will be reviewed to determine adherence or non-adherence, and assessed for the percentage of days with usage of at least 4 hours per night and the mean of daily use.
Time frame: 3rd month
Domiciliary NIV adherence
the records from the software fitted on the subject's NIV machine for the past two weeks will be reviewed to determine adherence or non-adherence, and assessed for the percentage of days with usage of at least 4 hours per night and the mean of daily use.
Time frame: 6th month
Domiciliary NIV adherence
the records from the software fitted on the subject's NIV machine for the past two weeks will be reviewed to determine adherence or non-adherence, and assessed for the percentage of days with usage of at least 4 hours per night and the mean of daily use.
Time frame: 12th month
Venous bicarbonate (HCO3-) level
estimation for level of hypercapnia
Time frame: baseline
Venous bicarbonate (HCO3-) level
estimation for level of hypercapnia
Time frame: 3rd month
Venous bicarbonate (HCO3-) level
estimation for level of hypercapnia
Time frame: 6th month
Chinese Pittsburgh Sleep Quality Index (CPSQI)
19-item self-reported measures assess the participant's sleep quality over last month. Seven component scores including subjective sleep quality, sleep latency, sleep duration, habitual sleep efficiency, sleep disturbances, sleep medication, and daytime dysfunction can be obtained from the items. The component scores range from 0 (no problem) to 3 (severe problem) and the overall score ranges from 0 to 21 with a higher score indicating a poorer sleep quality.
Time frame: baseline
Chinese Pittsburgh Sleep Quality Index (CPSQI)
19-item self-reported measures assess the participant's sleep quality over last month. Seven component scores including subjective sleep quality, sleep latency, sleep duration, habitual sleep efficiency, sleep disturbances, sleep medication, and daytime dysfunction can be obtained from the items. The component scores range from 0 (no problem) to 3 (severe problem) and the overall score ranges from 0 to 21 with a higher score indicating a poorer sleep quality.
Time frame: 3rd month
Chinese Pittsburgh Sleep Quality Index (CPSQI)
19-item self-reported measures assess the participant's sleep quality over last month. Seven component scores including subjective sleep quality, sleep latency, sleep duration, habitual sleep efficiency, sleep disturbances, sleep medication, and daytime dysfunction can be obtained from the items. The component scores range from 0 (no problem) to 3 (severe problem) and the overall score ranges from 0 to 21 with a higher score indicating a poorer sleep quality.
Time frame: 6th month
Chinese Pittsburgh Sleep Quality Index (CPSQI)
19-item self-reported measures assess the participant's sleep quality over last month. Seven component scores including subjective sleep quality, sleep latency, sleep duration, habitual sleep efficiency, sleep disturbances, sleep medication, and daytime dysfunction can be obtained from the items. The component scores range from 0 (no problem) to 3 (severe problem) and the overall score ranges from 0 to 21 with a higher score indicating a poorer sleep quality.
Time frame: 12th month
Chinese Severe Respiratory Insufficiency questionnaire (CSRI)
49 items assess the participants's health-related quality of life (QoL) from completely untrue, mostly untrue, sometimes true , mostly true, always true. The scores will be transformed between 0 and 100 with higher values indicating a better health-related quality of life.
Time frame: baseline
Chinese Severe Respiratory Insufficiency questionnaire (CSRI)
49 items assess the participants's health-related quality of life (QoL) from completely untrue, mostly untrue, sometimes true , mostly true, always true. The scores will be transformed between 0 and 100 with higher values indicating a better health-related quality of life.
Time frame: 3rd month
Chinese Severe Respiratory Insufficiency questionnaire (CSRI)
49 items assess the participants's health-related quality of life (QoL) from completely untrue, mostly untrue, sometimes true , mostly true, always true. The scores will be transformed between 0 and 100 with higher values indicating a better health-related quality of life.
Time frame: 6th month
Chinese Severe Respiratory Insufficiency questionnaire (CSRI)
49 items assess the participants's health-related quality of life (QoL) from completely untrue, mostly untrue, sometimes true , mostly true, always true. The scores will be transformed between 0 and 100 with higher values indicating a better health-related quality of life.
Time frame: 12th month
Hospital admissions and survival rate
record the number of hospital admissions
Time frame: baseline
Hospital admissions and survival rate
record the number of hospital admissions
Time frame: 12th month
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