Sleep Apnea, Obstructive Clinical Trial
Official title:
Efficacy of Simple Continuous Positive Airway Pressure on Patients With Obstructive Sleep Apnea
Verified date | May 2021 |
Source | State Key Laboratory of Respiratory Disease |
Contact | n/a |
Is FDA regulated | No |
Health authority | |
Study type | Interventional |
Obstructive sleep apnea (OSA) is a common and frequently-occurring disease. The incidence of OSA is more than 4% in general population, and as high as 20% - 40% in the elderly. At present, CPAP machines commonly used for OSA treatment includes traditional pressure fixed single-level CPAP machine and automatic pressure regulation CPAP machine. Studies have shown that the CPAP treatment pressure of OSA patients is normally below 11 cmH2O. Since the condition of OSA patients and the required CPAP treatment pressure may change over time, a CPAP machine with automatic pressure regulation function may theoretically better meet the needs of treatment. However, a recent large-scale clinical study with an average follow-up of four years showed that there was little need to change CPAP treatment pressure after titration. Although different types of CPAP have different functions, the basic principle is to keep the upper airway open and unobstructed to eliminate sleep apnea and hypopnea by continuously applying positive pressure to the upper respiratory tract through an air pump. A complex CPAP machine with functions such as pressure regulation, boost delay, end-expiratory pressure release will cost more than a single-function CPAP machine. Some patients from poor areas, even with severe OSA, may give up treatment when they can not afford CPAP machines that have not yet been included in national health insurance in China. In view of the current economic level in China, it is urgent to find an inexpensive and effective CPAP machine for the treatment of OSA and related complications. Recently, Guangzhou Yinghui Medical Technology Co., Ltd.and State Key Laboratory of Respiratory Disease have developed a new simple CPAP machine. The CPAP treatment pressure is fixed at the factory to 6 cm H2O (SKL), 8 cm H2O (SKM) and 10 cm H2O (SKH). Compared to traditional CPAP machine, only a power switch button is attached on the body, and the additional adjustment devices including display screen are removed, which not only reduces the cost of the CPAP machine, but also facilitates the operation of patients.
Status | Completed |
Enrollment | 100 |
Est. completion date | October 15, 2019 |
Est. primary completion date | October 1, 2019 |
Accepts healthy volunteers | No |
Gender | All |
Age group | 16 Years and older |
Eligibility | Inclusion Criteria: 1. Willing to participate after informed consent 2. Males and females, any race and aged=18yeras 3. Objectively confirmed OSA with an apnoea-hypopnoea- index (AHI)=5/h by overnight polysomnography Exclusion Criteria: 1. Central Sleep Apnoea/Cheyne Stokes Respiration 2. Opioid or sedative use; Alcohol abuse 3. Nasal congestion or tonsils more than ? degrees enlarged 4. Optimal treatment CPAP pressure over 10cmH2O 5. Poor understanding or being disabled |
Country | Name | City | State |
---|---|---|---|
China | The First Affiliated Hospital of Guangzhou Medical University | Guangzhou | Guangdong |
Lead Sponsor | Collaborator |
---|---|
State Key Laboratory of Respiratory Disease |
China,
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Apnea Hypopnea Index | Total number of apneas and hypopneas×60/total sleep time | One full night | |
Primary | Arousal Index | Total number of arousals×60/total sleep time | One full night | |
Primary | Oxygen Desaturation Index | Total number of oxygen desaturations=3%×60/total sleep time | One full night | |
Primary | Sleep structure | Sleep stage distribution(N1, N2, N3, NREM) | One full night | |
Primary | Adverse effects | Using questionnaire to assess adverse effects including dyspnea, noise, bloating, et al | Onefull night |
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