Objective and Perceptual Characteristics of the Voice After Endotracheal Intubation in Head and Neck Surgery

NCT ID: NCT07131800

Last Updated: 2025-08-20

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

ENROLLING_BY_INVITATION

Total Enrollment

180 participants

Study Classification

OBSERVATIONAL

Study Start Date

2024-09-25

Study Completion Date

2026-03-30

Brief Summary

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Introduction: Possible consequences of endotracheal intubation are post-intubation voice changes.

Hypothesis: Endotracheal intubation during head and neck surgery is associated with objective and perceptual voice disorders.

Research objective: To investigate the short-term and long-term effects of endotracheal intubation on voice quality during head and neck surgery.

Material, subjects, methodology and research design: A prospective observational cohort study that will include patients undergoing surgery and endotracheal intubation lasting up to 3 hours. Adult patients divided into three groups will be included in the research: thyroid surgery, parotid gland surgery and abdominal surgery. Videostroboscopy, perceptual and objective acoustic voice analysis will be recorded before surgery, on the second postoperative day, two weeks and 1 month after surgery.

Expected scientific contribution of the proposed research: The scientific contribution would be an understanding of the risk factors and the connection of voice disorders after endotracheal intubation, as well as the ability to determine differences in this risk in patients undergoing different operations.

Detailed Description

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study protocol has been published and is attached below

Conditions

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Voice Disorder Due to Iatrogenic Factor Endotracheal Intubation During Surgery Thyroid Surgery Head and Neck Surgery

Study Design

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Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Study Groups

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Patients undergoing thyroid surgery

Patients undergoing scheduled thyroid surgery at the University Hospital Centre Zagreb under general endotracheal anesthesia without preoperative voice disorder regardless of the cause (previous operations or irradiation on the neck, and damage to the recurrent laryngeal nerve (RLN) during thyroidectomy).

No interventions assigned to this group

Patients undergoing abdominal surgery

Patients undergoing scheduled abdominal surgery at Day surgery of University Hospital Centre Zagreb under general anesthesia without preoperative voice disorder regardless of the cause (previous operations or irradiation on the neck, and damage to the recurrent laryngeal nerve (RLN) during thyroidectomy). This will include laparoscopic abdominal procedures and other minor abdominal procedures done in Day surgery, and will be control group for head and neck surgical procedures.

No interventions assigned to this group

Patients undergoing other head and neck surgery besides thyroid

Patients undergoing scheduled head and neck surgeries beside thyroid surgery at the University Hospital Centre Zagreb under general endotracheal anesthesia without preoperative voice disorder regardless of the cause (previous operations or irradiation on the neck, and damage to the recurrent laryngeal nerve (RLN) during thyroidectomy).

No interventions assigned to this group

Eligibility Criteria

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Inclusion Criteria

* patients scheduled for elective thyroid, head and neck surgery or abdominal surgery
* 18 and 70 years,
* normal preoperative voice status, and
* normal laryngeal status.

Exclusion Criteria

* \<18 years in the time of surgery
* history of previous head and neck operation or radiotherapy
* patients scheduled for head and neck operation that can alter acoustic characteristics of the voice (surgery of the nasal cavity, ear surgery, laryngeal surgery, jaw surgery).
* Patients with preoperatively diagnosed pathologic vocal cord findings (nodules, polyps, vocal cord paralysis),
* patients with postoperative injuries of the vocal cords, recurrent and superior laryngeal nerve,
* patients with laryngopharyngeal reflux,
* patients in whom postoperative evaluation of the voice cannot be performed due to uncooperativeness will also be excluded from the study.
Minimum Eligible Age

18 Years

Maximum Eligible Age

70 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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Clinical Hospital Centre Zagreb

OTHER

Sponsor Role lead

Responsible Party

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Renata Curić Radivojević

Primarius; MD; PhD; FESAIC

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Ivana Šimić Prgomet, PhD, mag.logoped, Professor log.

Role: PRINCIPAL_INVESTIGATOR

Clinical Hospital Centre Zagreb

Drago Prgomet, MD; PhD, Professor

Role: STUDY_DIRECTOR

Clinical Hospital Centre Zagreb

Renata Curić Radiovjević, Primarius

Role: STUDY_CHAIR

Clinical Hospital Centre Zagreb

Locations

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University Hospital Centre Zagreb

Zagreb, , Croatia

Site Status

Countries

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Croatia

References

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Simic I, Curic Radivojevic R, Slipac J, Prgomet D. VOICE CONDITION FOLLOWING SHORT-TERM ENDOTRACHEAL INTUBATION IN HEAD AND NECK SURGERY: STUDY PROTOCOL FOR CLINICAL TRIAL. Acta Clin Croat. 2023 Apr;62(Suppl1):49-54. doi: 10.20471/acc.2023.62.s1.06.

Reference Type BACKGROUND
PMID: 38746618 (View on PubMed)

Other Identifiers

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Klasa8.1-23/209-3;Broj02/013AG

Identifier Type: -

Identifier Source: org_study_id

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