NCT05561920

Brief Summary

The treatment of advanced laryngeal cancer involves the removal of the entire larynx. After removal of the larynx, the pharyngoesophageal segment (PES) is created by reconstructing the soft tissue of the pharynx and oesophagus, and its vibration creates a substitute voice. High-speed video endoscopy (HSV) is the only method that visualises and measures the vibration of the PES after a laryngectomy. The acoustic characteristics of three forms of rehabilitated voice of laryngectomised individuals (oesophageal voice, tracheoesophageal (TE) voice using a voice prosthesis and electrolarynx) have been satisfactorily described, but the interdependence of acoustic and visual representations of the phonatory movement of the PES is still insufficiently studied. In recent years, biomechanical models have been developed to analyse the vibration of the PES, but consistent results have not yet been obtained that would explain whether the parameters from the analysis of the waveform of the PES can be compared with the parameters obtained from the acoustic analysis of the voice of a laryngectomised patient.Effective rehabilitation focuses on optimising speech and swallowing, which leads to a good integration of the laryngectomised person into society. One step towards achieving this goal is a thorough assessment of their voice and communication experiences, as well as analysing the phonatory movements of the PES using HSV technology.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
55

participants targeted

Target at P25-P50 for all trials

Timeline
Completed

Started Aug 2022

Typical duration for all trials

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

August 1, 2022

Completed
2 months until next milestone

First Submitted

Initial submission to the registry

September 15, 2022

Completed
15 days until next milestone

First Posted

Study publicly available on registry

September 30, 2022

Completed
2.5 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

April 1, 2025

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

April 1, 2025

Completed
11 months until next milestone

Results Posted

Study results publicly available

March 11, 2026

Completed
Last Updated

March 31, 2026

Status Verified

June 1, 2025

Enrollment Period

2.7 years

First QC Date

September 15, 2022

Results QC Date

April 28, 2025

Last Update Submit

March 11, 2026

Conditions

Keywords

LaryngectomyEndoscopySpeech,acousticsHigh speed imagingSpeech,alaryngealPharyngoesophageal segmentBiomechanics model

Outcome Measures

Primary Outcomes (10)

  • High Speed Video Endoscopy Recordings

    Visual recording of the mucosa of the pharyngoesophageal segment (PES) performed with High speed video endoscopy (HSV) during the phonation of the vowel "a".The video recordings of the PES were made with a 90° rigid HSV system Wolf 5562 Hres ENDOCAM (frame rate: 4000 fps, resolution: 256×256 pixels). All subjects phonated the vowel "a" at a comfortable pitch and volume. Visual assessment of the HSV recordings was performed using the protocol including the assessments of the overall quality of the recordings (assessability, brightness and focus) and the assessments of anatomical and morphological features of the PES: amount of saliva, visibility and shape of the PES, location of visible vibration, presence of a mucosal wave and regularity of the vibration.

    15 minutes for each participants

  • The Measures of Central Tendency and Dispersion in Acoustic Signal - Fundamental Frequency

    The acoustic analysis of the tracheoesophageal (TE) voice with a voice prosthesis was performed in a quiet room (ambient noise \< 50 dB) with a microphone placed 30 cm from the mouth to create optimal conditions for recording and analysis. Three consecutive measurements were taken. The voice recordings were analysed using the acoustic programme lingWAVES (Voice and speech analyser version 2.x software). The fundamental frequency (Hz) parameter was recorded from the central part of the best recording

    15 minutes

  • The Measures of Central Tendency and Dispersion in Acoustic Signal - Intensity of Substitute Voice

    The acoustic analysis of the tracheoesophageal (TE) voice with a voice prosthesis was performed in a quiet room (ambient noise \< 50 dB) with a microphone placed 30 cm from the mouth to create optimal conditions for recording and analysis. Three consecutive measurements were taken. The voice recordings were analysed using the acoustic programme lingWAVES (Voice and speech analyser version 2.x software). Intensity of substitute voice was recorded from the central part of the best recording

    15 minutes

  • The Measures of Central Tendency and Dispersion in Acoustic Signal - Relative Jitter and Shimmer

    The acoustic analysis of the tracheoesophageal (TE) voice with a voice prosthesis was performed in a quiet room (ambient noise \< 50 dB) with a microphone placed 30 cm from the mouth to create optimal conditions for recording and analysis. Three consecutive measurements were taken. The voice recordings were analysed using the acoustic programme lingWAVES (Voice and speech analyser version 2.x software). The following parameters were recorded from the central part of the best recording: jitter (%), shimmer (%)

    15 minutes

  • The Measures of Central Tendency and Dispersion of Maximum Phonation Time (MPT)

    Measurement of the longest possible relaxed phonation of the voice "a" by a speech therapist The maximum phonation time (measured in seconds) for which a person can sustain a vowel sound when produced on 1 deep breath at a comfortable pitch and loudness and is a common clinical measure of glottal efficiency.

    2 minutes

  • Croatian Version of the SECEL (SECEL:HR) Questionnaire.

    Completing the Croatian version of the Self-Evaluation of Communication Experiences after Laryngectomy (SECEL) questionnaire. Questionnaire consists of two parts. The first part examines the relevant general data on the person filling out the questionnaire, while the second part consists of 35 items questionably or statement-designed to examine communication experiences. Patients estimates the incidence of these communication difficulties on the Likert scale (0-never, 1-sometimes, 2-often, 3-always). The 35 items are divided into 3 subscales: General (0-15 points), Environment (0-42 points) and Attitude (0-45 points). Item number 35 is a separate question: "Do you talk the same amount now as you did before your laryngectomy?" and is scored with the rating categories "yes"," "more" and "less". The total numerical score ranges from 0 to 102, with a higher score indicating greater difficulty and poorer postoperative adaptation of speech communication.

    15 minutes

  • The Results of Pharyngoesophageal Segment (PES) Vibration Analysed With the Biomechanical Model Obtained by High - Speed Video Endoscopy - Central Tendency and Dispersion - Open and Closed Phase Duration (%), Relative Shimmer and Relative Jitter

    The development of the biomechanical model of the PES aims to quantify non-stationary pharyngoesophageal vibrations and draw conclusions about the temporal characteristics of tissue stiffness, oscillating mass, pressure, and geometric distributions within the PES. The biomechanical model identifies mathematical dependencies and analyses extracted time signals of the PES opening and contours (i.e. the opening and closing of the vibrating mucosa of the PES). The PES waveform allows calculation of relative shimmer (%), relative jitter (%), and the duration of the open and closed phases (%), or the percentage of open or closed time of the PES, which is calculated from the PES waveform using the formulas listed in reference 5.

    3 months

  • The Results of Pharyngoesophageal Segment (PES) Vibration Analysed With the Biomechanical Model Obtained by High - Speed Video Endoscopy - Central Tendency and Dispersion - Mean Shimmer

    The development of the biomechanical model of the PES in order to quantify non-stationary pharyngoesophageal vibrations and drawing conclusions on the temporal characteristics of tissue stiffness, oscillating mass, pressure, and geometric distributions within the PES. The biomechanical model identify mathematical dependencies and analyse extracted time signals of the PES opening and contours (i.e. the opening and closing of the vibrating mucosa of the PES). The PES waveform allowed us to calculate mean shimmer (dB).

    3 months

  • The Results of Pharyngoesophageal Segment (PES) Vibration Analysed With the Biomechanical Model Obtained by High - Speed Video Endoscopy - Central Tendency and Dispersion of Mean Jitter

    The development of the biomechanical model of the PES in order to quantify non-stationary pharyngoesophageal vibrations and drawing conclusions on the temporal characteristics of tissue stiffness, oscillating mass, pressure, and geometric distributions within the PES. The biomechanical model identify mathematical dependencies and analyse extracted time signals of the PES opening and contours (i.e. the opening and closing of the vibrating mucosa of the PES). The PES waveform allowed us to calculate mean jitter (s).

    3 months

  • The Results of Pharyngoesophageal Segment (PES) Vibration Analysed With the Biomechanical Model Obtained by High - Speed Video Endoscopy - Central Tendency and Dispersion - Fundamental Frequency

    The development of the biomechanical model of the PES in order to quantify non-stationary pharyngoesophageal vibrations and drawing conclusions on the temporal characteristics of tissue stiffness, oscillating mass, pressure, and geometric distributions within the PES. The biomechanical model identify mathematical dependencies and analyse extracted time signals of the PES opening and contours (i.e. the opening and closing of the vibrating mucosa of the PES). The PES waveform allowed us to calculate the fundamental frequency (Hz).

    3 months

Study Arms (1)

Adult laryngectomised patients

Patients who have undergone total laryngectomy and completed minimal their 6-month period without disease after surgery and post-operative treatments such as radiotherapy or chemotherapy

Device: High-speed video endoscopy (HSV)Device: Acoustic voice analysisBehavioral: Quality of life questionnaire

Interventions

acoustic program (lingWAVES - Voice and speech analyser) - measuring the values of acoustic parameters in voice recordings

Adult laryngectomised patients

Filling out questionnaires

Adult laryngectomised patients

Describe anatomical and morphological characteristics o phonatory movement of pharyngoesophageal segment (PES) in laryngectomy patients

Adult laryngectomised patients

Eligibility Criteria

Age18 Years - 90 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodProbability Sample
Study Population

adult male laryngectomised patients who completed oncological treatment and underwent voice rehabilitation

You may qualify if:

  • laryngectomised patients who completed minimal their 6-month period without disease after surgery and post-operative treatments such as radiotherapy or chemotherapy
  • patients with preserved reading skills
  • regular presence at follow-up visits

You may not qualify if:

  • age less than 18 years
  • acute respiratory infection of the upper or lower respiratory tract
  • other primary cancer in the upper aerodigestive tract or lung
  • presence of neurologic or pulmonary diseases

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University Hospital Osijek

Osijek, 31000, Croatia

Location

Related Publications (8)

  • Zenga J, Goldsmith T, Bunting G, Deschler DG. State of the art: Rehabilitation of speech and swallowing after total laryngectomy. Oral Oncol. 2018 Nov;86:38-47. doi: 10.1016/j.oraloncology.2018.08.023. Epub 2018 Sep 12.

    PMID: 30409318BACKGROUND
  • van As CJ, Tigges M, Wittenberg T, Op de Coul BM, Eysholdt U, Hilgers FJ. High-speed digital imaging of neoglottic vibration after total laryngectomy. Arch Otolaryngol Head Neck Surg. 1999 Aug;125(8):891-7. doi: 10.1001/archotol.125.8.891.

    PMID: 10448737BACKGROUND
  • Schwarz R, Huttner B, Dollinger M, Luegmair G, Eysholdt U, Schuster M, Lohscheller J, Gurlek E. Substitute voice production: quantification of PE segment vibrations using a biomechanical model. IEEE Trans Biomed Eng. 2011 Oct;58(10):2767-76. doi: 10.1109/TBME.2011.2151860. Epub 2011 May 10.

    PMID: 21558056BACKGROUND
  • Huttner B, Luegmair G, Patel RR, Ziethe A, Eysholdt U, Bohr C, Sebova I, Semmler M, Dollinger M. Development of a time-dependent numerical model for the assessment of non-stationary pharyngoesophageal tissue vibrations after total laryngectomy. Biomech Model Mechanobiol. 2015 Jan;14(1):169-84. doi: 10.1007/s10237-014-0597-1. Epub 2014 May 27.

    PMID: 24861998BACKGROUND
  • Schlegel P, Stingl M, Kunduk M, Kniesburges S, Bohr C, Dollinger M. Dependencies and Ill-designed Parameters Within High-speed Videoendoscopy and Acoustic Signal Analysis. J Voice. 2019 Sep;33(5):811.e1-811.e12. doi: 10.1016/j.jvoice.2018.04.011. Epub 2018 May 31.

    PMID: 29861291BACKGROUND
  • Schindler A, Mozzanica F, Brignoli F, Maruzzi P, Evitts P, Ottaviani F. Reliability and validity of the Italian self-evaluation of communication experiences after laryngeal cancer questionnaire. Head Neck. 2013 Nov;35(11):1606-15. doi: 10.1002/hed.23198. Epub 2012 Nov 20.

    PMID: 23169480BACKGROUND
  • Debruyne F, Delaere P, Wouters J, Uwents P. Acoustic analysis of tracheo-oesophageal versus oesophageal speech. J Laryngol Otol. 1994 Apr;108(4):325-8. doi: 10.1017/s0022215100126660.

    PMID: 8182320BACKGROUND
  • Dooks P, McQuestion M, Goldstein D, Molassiotis A. Experiences of patients with laryngectomies as they reintegrate into their community. Support Care Cancer. 2012 Mar;20(3):489-98. doi: 10.1007/s00520-011-1101-4. Epub 2011 Feb 6.

    PMID: 21298450BACKGROUND

MeSH Terms

Conditions

Laryngeal NeoplasmsSpeech

Condition Hierarchy (Ancestors)

Otorhinolaryngologic NeoplasmsHead and Neck NeoplasmsNeoplasms by SiteNeoplasmsLaryngeal DiseasesRespiratory Tract DiseasesRespiratory Tract NeoplasmsOtorhinolaryngologic DiseasesVerbal BehaviorCommunicationBehavior

Results Point of Contact

Title
Željka Laksar Klarić
Organization
University hospital Osijek

Study Officials

  • Ana Đanić Hadžibegović, Assoc. Prof

    Clinical Hospital Centre Zagreb

    STUDY CHAIR
  • Andrijana Včeva, Full Prof

    University Hospital Osijek

    STUDY CHAIR

Publication Agreements

PI is Sponsor Employee
Yes

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

September 15, 2022

First Posted

September 30, 2022

Study Start

August 1, 2022

Primary Completion

April 1, 2025

Study Completion

April 1, 2025

Last Updated

March 31, 2026

Results First Posted

March 11, 2026

Record last verified: 2025-06

Locations