The aim of this study is to observe the effect of adjustable headrests on ventilation function in overweight and obese patients through clinical experiments, and to explore the impact on the incidence of hypoxemia during painless curettage in overweight and obese patients. Participants will be randomly allocated to three groups: the supine head-straight position group(Group A), the supine head-lateral position group(Group B), and the adjustable headrest group(Group C). These three groups of patients underwent painless curettage surgery in the daytime operating room and the occurrence of hypoxemia will be observed.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
PREVENTION
Masking
TRIPLE
Enrollment
300
the supine head-lateral position group: during the perioperative period, keep the patient's head tilted to the left or right
the adjustable headrest group: placing an adjustable pillows on the patient's head to align the patient's external auditory canal horizontally with the sternum
the supine head-straight position group: during the perioperative period, keep the patient's head upright
Maternal and Child Health Hospital of Hubei Province
Wuhan, Hubei, China
RECRUITINGIncidence of hypoxemia
Incidence of hypoxemia will be recorded after anesthesia induction
Time frame: 1,2 and 3 minutes after anesthesia induction
Respiratory rate and oxygen saturation
Respiratory rate and oxygen saturation will be recorded at 4 time points, including the time of entering the daytime operating room(Time 0), 1 minute after anesthesia induction(Time 1), 2 minute after anesthesia induction(Time 2), 3 minute after anesthesia induction(Time 3), 1 minute after the patient wakes up(Time 4)
Time frame: The time of entering the daytime operating room, intraoperative period., 1 minute after the patient wakes up
Heart rate and blood pressure
heart rate and blood pressure will be recorded at 4 time points, including the time of entering the daytime operating room(Time 0), 1 minute after anesthesia induction(Time 1), 2 minute after anesthesia induction(Time 2), 3 minute after anesthesia induction(Time 3), 1 minute after the patient wakes up(Time 4)
Time frame: The time of entering the daytime operating room, intraoperative period, 1 minute after the patient wakes up
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