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Comparison of the effect of prepositioned laryngeal mask placement versus classical laryngeal mask placement on postoperative sore throat in patients undergoing hysteroscopic surgery alone: a single-center, prospective, randomized controlled study

Comparison of the effect of prepositioned laryngeal mask placement versus classical laryngeal mask placement on postoperative sore throat in patients undergoing hysteroscopic surgery alone: a single-center, prospective, randomized controlled study

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
ChiCTR
Registry ID
ChiCTR2300074689
Enrollment
Unknown
Registered
2023-08-14
Start date
2023-08-14
Completion date
Unknown
Last updated
2024-10-21

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

Conditions

postoperative sore throat

Interventions

Pre-positioned laryngeal mask group:A pre-positioned laryngeal mask is used, i.e. a partial laryngeal mask is placed orthogonally in the patients mouth before induction of anesthesia, and the laryngea
Classic laryngeal mask placement group:Insertion of the laryngeal mask using the classic technique: open the mouth of the patient after anesthetic induction and insert the laryngeal mask in a positive

Sponsors

West China Second University Hospital, Sichuan University
Lead Sponsor

Eligibility

Sex/Gender
Female
Age
18 Years to 65 Years

Inclusion criteria

Inclusion criteria: 1. Adult patients who plan to undergo elective simple hysteroscopic surgery under general anesthesia with laryngeal mask; 2. ASA level 2-3; 3. Age range from 18 to 65 years old.

Exclusion criteria

Exclusion criteria: 1. Preoperative throat pain; 2. Preoperative complications of pharyngeal diseases; 3. Preoperative concurrent acute or chronic pain; 4. Long term use of analgesics before surgery; 5. Preoperative concomitant lung diseases (such as recent lung infections, asthma, chronic obstructive pulmonary disease); 6. Preoperative comorbidities such as anxiety or other mental illnesses, or inability to cooperate with follow-up for any reason; 7. Clearly refuse to participate in this study; 8. Surgery time exceeding 3 hours; 9. Changing the surgical method midway (laparoscopic surgery or other complex surgeries); 10. Participate in other research; 11. Change to tracheal intubation for general anesthesia midway.

Design outcomes

Primary

MeasureTime frame
The incidence of sore throat at 24 h postoperatively;

Secondary

MeasureTime frame
The incidence of moderate or severe sore throat at 24 h postoperatively;Dose of analgesic medication used for sore throat at 24 h postoperatively;Incidence of postoperative sore throat in the PACU;The incidence of moderate/severe sore throat in the PACU;Dose of analgesic medication used for sore throat in the PACU;Difficulty of laryngeal mask placement;The time of establish effective ventilation;First-time placement success rate;Number of laryngeal mask placement attempts;Number of laryngeal mask adjustments;Highest mean arterial pressure within 1 minute before laryngeal mask insertion;Maximum airway pressure within 1 minute of laryngeal mask placement;Highest mean arterial pressure within 1 minute of laryngeal mask insertion;intraoperative body movements;intraoperative awareness ;

Countries

China

Contacts

Public ContactHao Li

West China Second University Hospital, Sichuan University

lihao0510@163.com+86 181 9096 3549

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Feb 4, 2026