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A Study on Application of Adjustable Headrest in Painless Curettage Surgery for Overweight and Obese Patients

A Study on Application of Adjustable Headrest in Painless Curettage Surgery for Overweight and Obese Patients: a Randomized Controlled Trial

Status
Recruiting
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06929000
Enrollment
300
Registered
2025-04-15
Start date
2025-02-25
Completion date
2026-09-22
Last updated
2025-04-15

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Adjustable Headrests, Obese Patients, Ventilation Function

Brief summary

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.

Interventions

OTHERthe supine head-lateral position group

the supine head-lateral position group: during the perioperative period, keep the patient's head tilted to the left or right

OTHERthe adjustable headrest group

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

OTHERthe supine head-straight position group

the supine head-straight position group: during the perioperative period, keep the patient's head upright

Sponsors

Maternal and Child Health Hospital of Hubei Province
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
TRIPLE (Subject, Caregiver, Outcomes Assessor)

Eligibility

Sex/Gender
FEMALE
Age
20 Years to 50 Years
Healthy volunteers
Yes

Inclusion criteria

* patients who choose to have painless surgical abortion * Body mass index greater than 24 * the American Society of Anesthesiologists (ASA) physical status ranked I-II * competent to provide informed consent

Exclusion criteria

* Abnormal lung function or respiratory system diseases * Airway obstruction or respiratory malformation * cervical spondylosis * psychiatric disorders

Design outcomes

Primary

MeasureTime frameDescription
Incidence of hypoxemia1,2 and 3 minutes after anesthesia inductionIncidence of hypoxemia will be recorded after anesthesia induction
Respiratory rate and oxygen saturationThe time of entering the daytime operating room, intraoperative period., 1 minute after the patient wakes upRespiratory 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)

Secondary

MeasureTime frameDescription
Heart rate and blood pressureThe time of entering the daytime operating room, intraoperative period, 1 minute after the patient wakes upheart 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)

Countries

China

Contacts

Primary ContactNaLi, MD
lina@hbfy.com+862763490107

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026