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Laryngopharyngeal Injury After Endotracheal Intubation Under General Anesthesia

Incidence,Perioperative Risk Factors and Prognosis Associated With Laryngopharyngea Injury After Endotracheal Intubation Under General Anesthesia:A Retrospective Study

Status
Recruiting
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT07359586
Enrollment
1200
Registered
2026-01-22
Start date
2025-11-01
Completion date
2026-12-25
Last updated
2026-01-22

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

Conditions

Cholangiocarcinoma, Gastric Cancer, Hepatic Carcinoma, Pancreatic Carcinoma, Pulmonary Carcinoma, Thyroid Carcinoma

Keywords

hoarseness, Vocal cord injury, Incidence, Prognosis

Brief summary

This study retrospectively analyzed patients who underwent tracheal intubation under general anesthesia at the First Affiliated Hospital of Zhejiang University School of Medicine between October 1, 2015, and September 30, 2025, with a focus on issues related to postoperativelaryngopharyngeal complaints. Patients requiring otolaryngological consultation due to postoperative laryngopharyngeal complaints were identified via the case consultation system. Relevant patient data were collected through the Medison Anesthesia Information Management System and electronic medical record system, and telephone follow-up was conducted to assess patient prognosis. The primary outcome measures were the risk factors of postoperative hoarseness, while the secondary outcome measures included the incidence of postoperative hoarseness, the severity of vocal fold injury and its related risk factors. Additionally, the prognosis of patients and its related risk factors were evaluated. This study aims to reduce the incidence of perioperative laryngopharyngeal injury and provide a reference for the optimization of perioperative anesthetic regimens.

Interventions

None listed

Sponsors

Zhejiang University
Lead SponsorOTHER

Study design

Observational model
COHORT
Time perspective
RETROSPECTIVE

Eligibility

Sex/Gender
ALL
Healthy volunteers
No

Inclusion criteria

* Patients who underwent general anesthesia with tracheal intubation at the First Affiliated Hospital of Zhejiang University School of Medicine between October 2015 and September 2025 * Patients who required otolaryngological consultation due to laryngopharyngeal complaints (including hoarseness, sore throat, cough, choking on drinking water, etc.) postoperatively * The surgical type was non-otolaryngological surgery

Exclusion criteria

* Patients with a history of laryngopharyngeal lesions (e.g., granuloma, polyp, tumour, vocal cord paralysis * Patients with a preexisting tracheotomy * Patients requiring postoperative tracheotomy * Patients with incomplete medical records * Patients who underwent multiple surgeries but for whom the specific surgical episode responsible for the laryngopharyngeal complaints could not be identified

Design outcomes

Primary

MeasureTime frameDescription
Postoperative hoarsenessPerioperative,up to150 daysThe patients underwent general anesthesia with tracheal intubation and required otolaryngological consultation for hoarseness between October 1, 2015, and September 30, 2025.Hoarseness is characterized by alterations in voice quality, pitch (how high or low the voice is), volume (loudness), or vocal effort that impair effective communication, as judged by a healthcare provider, and may adversely affect quality of life.

Secondary

MeasureTime frameDescription
Incidence of HoarsenessPerioperative,up to150 days(Number of patients with postoperative hoarseness) / (Total number of patients undergoing general anesthesia tracheal intubation) × 100%
the severity of hoarsenessPerioperative,up to150 daysHoarseness was assessed as follows: 0 = none (no hoarseness), 1 = noticed by patient, 2 = obvious to observer, 3 = aphonia.
Postoperative Vocal Fold InjuryPerioperative,up to150 daysBased on patients' hoarseness symptoms and laryngoscopic findings, an otolaryngologist conducted clinical assessment and grading, classifying vocal fold injury into four levels. The classification criteria were: Grade 0 (Normal): Non-hoarsenes; Grade 1 (Mild): hoarseness with negative laryngoscopic findings or vocal fold closure gap; Grade 2 (Moderate): hoarseness with vocal fold mobility impairment; Grade 3 (Severe): hoarseness with vocal cord paralysis or fixation.
Incidence of Arytenoid DislocationPerioperative,up to150 days(Number of patients with postoperative arytenoid dislocation)/ (Total number of patients undergoing general anesthesia tracheal intubation) × 100%

Countries

China

Contacts

CONTACTDiansan Su
diansansu@yahoo.com+8618616514088
PRINCIPAL_INVESTIGATORDiansan Su

Zhejiang University

Outcome results

None listed

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