Skip to content

Magnetic Upper Airway Patency Device for the Prevention of Perioperative Apnea, Hypoxemia, and Respiratory Complications in Obese and Sedated Patients: A Randomized Controlled Trial

Magnetic Upper Airway Patency Device for the Prevention of Perioperative Apnea, Hypoxemia, and Respiratory Complications in Obese and Sedated Patients: A Randomized Controlled Trial

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
ChiCTR
Registry ID
ChiCTR2600117876
Enrollment
Unknown
Registered
2026-01-29
Start date
2026-01-30
Completion date
Unknown
Last updated
2026-02-02

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

Conditions

Perioperative Apnea, Hypoxemia, and Respiratory Complications

Interventions

Trial 1 control:Patients in the control group wore a sleep wristband before going to sleep the day before the operation and removed it after getting up in the morning.
Trial 1 MAPD:The patients in the MAPD group wore a MAPD and a sleep bracelet customized for them in advance before going to sleep the day before the operation, and removed them after getting up in the
Trial 2 control:No special intervention.
Trial 2 MAPD:Patients in the experimental group wore a personalised MAPD before anaesthesia, and the degree of mandibular advancement was adjusted under the guidance of the anaesthetist. The MAPD was
Trial 3 control:No special intervention.
Trial 3 MAPD:Patients in the experimental group wore a custom-made MAPD before anaesthesia, adjusted the mandibular advancement under the guidance of the anaesthetist, and removed the MAPD after the s

Sponsors

Xuzhou Central Hospital
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to 80 Years

Inclusion criteria

Inclusion criteria: General Inclusion Criteria (1)Age: 18–80 years; (2)Provision of written informed consent; (3)Ability to tolerate oral devices and absence of severe psychiatric disorders. Specific Inclusion Criteria (Hypertension + OSA) (1)Previously diagnosed hypertension, defined by a history of antihypertensive medication use or documented blood pressure control; (2)Suspected or confirmed obstructive sleep apnea (OSA) prior to surgery, defined as: prior polysomnography or portable sleep monitoring showing an apnea–hypopnea index (AHI) >= 5 events/hour, orpreoperative evaluation indicating nocturnal hypoxemia and/or apnea events; (3)Scheduled for elective surgery. Trial 2 (Painless Colonoscopy in Obese Patients) Specific Inclusion: (1) BMI >= 30 kg/m^2; (2) Planned painless (intravenous sedation) colonoscopy; Trial 3 (Hysteroscopy/Painless Abortion Sedation) Specific Inclusion: Planned hysteroscopy/painless abortion or other short-term anaesthesia, using an opioid-propofol sedation protocol;

Exclusion criteria

Exclusion criteria: (1)Edentulism of both the upper and lower jaws (inability to retain the device), severe periodontal disease or mobile teeth, or a recent history of maxillofacial surgery or severe temporomandibular joint disorders; (2)Inability to tolerate an oral device, such as a severe gag reflex; (3)Active upper airway bleeding, or severe gastroesophageal reflux disease and/or a high risk of aspiration (patients requiring individual assessment for device suitability); (4)Inability to cooperate or presence of severe cardiopulmonary insufficiency.

Design outcomes

Primary

MeasureTime frame
The incidence of morning hypertension on the day of surgery;Incidence of hypoxia;Incidence of hypoxia events during surgery (from anaesthesia induction to return to ward);

Secondary

MeasureTime frame
The incidence of elective surgery postponement due to hypertension;Catecholamine and aldosterone levels in the blood upon waking for several consecutive days;Incidence of hypotension after anesthesia induction;Incidence of intraoperative hypertension;Incidence of major cardiovascular adverse events within 7 days after surgery;1. Vital signs monitoring: blood oxygen saturation (SpO?), mean arterial pressure (MAP), heart rate (HR);Total propofol dosage (mg);Operation time;Anaesthesia recovery time;Number of times urgent airway intervention is required;6. Adverse event records: body movement, choking cough, bradycardia (HR < 50 bpm), hypotension (blood pressure 30% below baseline);Incidence of intraoperative respiratory arrest;Incidence of airway intervention;Non-hypoxia related adverse events;Other indicators include general patient information, duration of surgery, recovery time (from cessation of anaesthesia to eye opening), and duration of anaesthesia (from induction to leaving the operating room);Patient satisfaction;Record the patient's heart rate, MAP, and SpO2 at the time of admission (T0), immediately at the start of surgery (T1), immediately at cervical dilation (T2), and immediately at the end of surgery (T3).;

Countries

China

Contacts

Public ContactWang Liwei

Xuzhou Central HospitalXuzhou, Jiangsu, China

18952170255@163.com+86 189 5217 0255

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Feb 7, 2026