Actively Recruiting
A Study on Application of Adjustable Headrest in Painless Curettage Surgery for Overweight and Obese Patients: a Randomized Controlled Trial
Led by Maternal and Child Health Hospital of Hubei Province · Updated on 2025-04-15
300
Participants Needed
1
Research Sites
30 weeks
Total Duration
On this page
AI-Summary
What this Trial Is About
This trial investigates how adjustable headrests affect breathing function and the risk of low oxygen levels during painless curettage surgery in overweight and obese patients. It aims to understand the impact on breathing by comparing different head positions during the procedure. Participants are randomly assigned to one of three groups: a supine head-straight position group where the head is kept upright, a supine head-lateral position group where the head is tilted left or right, and an adjustable headrest group where a pillow aligns the external ear canal horizontally with the sternum. All participants undergo painless curettage surgery in a daytime operating room. During the study, breathing rate, oxygen levels, heart rate, and blood pressure are monitored at specific times including before anesthesia, during surgery, and shortly after waking. The main focus is on measuring the incidence of low oxygen levels at 1, 2, and 3 minutes after anesthesia starts. Participants are observed closely throughout the procedure to assess ventilation outcomes and safety.
CONDITIONS
Brief Title
A Study on Application of Adjustable Headrest in Painless Curettage Surgery for Overweight and Obese Patients
Who Can Participate
Eligibility Criteria
You may qualify if you...
- Patients who choose to have painless surgical abortion
- Body mass index greater than 24
- American Society of Anesthesiologists (ASA) physical status ranked I-II
- Competent to provide informed consent
You will not qualify if you...
- Abnormal lung function or respiratory system diseases
- Airway obstruction or respiratory malformation
- Cervical spondylosis
- Psychiatric disorders
AI-Screening
AI-Powered Screening
Complete this quick 3-step screening to check your eligibility
Your Study Journey
Duration - 2 to 4 weeks
Participants are screened for eligibility to participate in the trial.
1 visit (in-person)
Duration - Day of surgery
Participants undergo painless curettage surgery with one of three head positions applied during the perioperative period to evaluate the effect on hypoxemia and respiratory parameters.
1 surgery visit (in-person)
Duration - Minutes after surgery until recovery
Participants are monitored for respiratory rate, oxygen saturation, heart rate, and blood pressure shortly after surgery and upon waking.
Approximately 1 follow-up visit (in-person)
Trial Site Locations
Total: 1 location
1
Maternal and Child Health Hospital of Hubei Province
Wuhan, Hubei, China, 430000
Actively Recruiting
Research Team
N
NaLi, MD
How is the study designed?
Study Type
INTERVENTIONAL
Masking
TRIPLE
Allocation
RANDOMIZED
Model
PARALLEL
Primary Purpose
PREVENTION
Number of Arms
3
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