600 comatose patients admitted to the hospital in China from June 2024 to June 2028 were randomly divided into groups A and B. Group A used intermittent negative pressure suction through oral and pharyngeal ventilation, while group B used continuous negative pressure suction through regular oral and nasal suction.
Age range
20 Years – 90 Years
Sex
ALL
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The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
Blood oxygen saturation before and after sputum aspiration
Timeframe: Not exceeding 1 day
Suctioning time
Timeframe: Not exceeding 2 minute
Degree of airway bleeding
Timeframe: Not exceeding 30 minute