This randomized controlled study is to evaluate the effectiveness of inhaling penehyclidine hydrochloride in reducing perioperative respiratory adverse events in children at risk undergoing minor elective surgery.
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The incidence of PRAEs
Timeframe: From beginning of anesthesia induction until the completion of postoperative recovery in PACU (including the phases of anesthesia induction, anesthesia maintenance, postoperative emergency and postoperative recovery), assessed up to 24 hours.