Research purposes：Comparison of preoperative folic acid and placebo intervention on postoperative recovery of sputum in children undergoing general anesthesia for head and neck and maxillofacial surgery Test type：Randomized, double-blind, placebo-controlled, prospective study Randomized grouping: Patients were randomized into an intervention group (fed for 7 days before surgery) and a placebo group (7 days for placebo) Test subjects: recruitment and sample size calculation, inclusion criteria, exclusion criteria, shedding cases, trial suspension, rejection criteria, trial termination,Test contents Evaluation indicators: main observation indicators, secondary observation indicators Adverse events: definition of adverse events, recording of adverse events, treatment of adverse events, assessment of adverse events, serious adverse events, definition of serious adverse events, recording and reporting of serious adverse events
Age range
1 Year – 5 Years
Sex
ALL
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AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
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.
The incidence of sputum in children
Timeframe: 8 days