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
Phase:
N/A
Details
Lead Sponsor:
Shanghai Ninth People's Hospital Affiliated to Shanghai Jiao Tong University