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Related Concept Videos

Larynx01:21

Larynx

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The human larynx, often referred to as the voice box, is an intricate organ located in the neck. It serves as a pathway for air to enter the lungs during respiration and is an essential component of voice production.
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The larynx consists of various components, including cartilage, muscles, and vocal cords. Its structure includes three large unpaired cartilages—the thyroid, cricoid, and epiglottis—and three smaller paired cartilages—the arytenoids,...
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Step 1: Perform hand hygiene, and put on personal protective equipment: gown, gloves, mask...
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Tracheostomy suctioning is a vital nursing procedure that involves removing secretions from the tracheostomy tube to maintain airway patency and prevent respiratory complications. Nurses need to understand the proper technique for tracheostomy suctioning to ensure patient safety and comfort. In this guide, we will outline the step-by-step process for performing tracheostomy suctioning, including preparing the sterile field, donning personal protective equipment (PPE), lubricating and connecting...
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Suctioning the Oropharyngeal Airway01:25

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Related Experiment Video

Updated: Mar 31, 2026

Construction and Characterization of a Novel Vocal Fold Bioreactor
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Construction and Characterization of a Novel Vocal Fold Bioreactor

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Novel modification of voice prosthesis.

Basel Al Kadah1, George Papaspyrou2, Mathias Schneider3

  • 1Department of Otorhinolaryngology, University Medical Center Homburg/Saar, Kirrberger Straße, 66421, Homburg/Saar, Germany. basel.al-kadah@uks.eu.

European Archives of Oto-Rhino-Laryngology : Official Journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : Affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery
|October 15, 2015
PubMed
Summary

This study introduces a modified voice prosthesis to treat tracheoesophageal shunt leakage, offering a non-surgical alternative to revision surgery. The novel prosthesis effectively stopped leakage in all patients without compromising voice quality.

Keywords:
Fistula leakageLaryngectomyModified voice prosthesis esophago-tracheal fistulaNovel modificationShunt leakageVoice prosthesis

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Area of Science:

  • Otolaryngology
  • Medical Devices
  • Surgical Complications

Background:

  • Tracheoesophageal shunt dilatation is a common complication after voice prosthesis implantation.
  • Temporary prosthesis removal and reinsertion is a standard initial treatment for shunt shrinkage.
  • Failure of conservative management often necessitates revision surgery.

Purpose of the Study:

  • To evaluate the efficacy of a novel modified voice prosthesis in treating tracheoesophageal shunt leakage.
  • To present initial experiences with a non-surgical intervention for prosthesis-related complications.

Main Methods:

  • Modification of a "Provox 2" voice prosthesis with silicone discs and a reinforcing silicone tube.
  • Retrograde insertion of the modified prosthesis under general anesthesia in 11 patients.
  • Observation period of 12–48 months, with methylene blue swallowing test for leakage assessment.

Main Results:

  • The modified voice prosthesis successfully resolved shunt leakage in all treated patients.
  • The durability of the modified prosthesis ranged from 2 to 6 months.
  • No subjective impairment of voice quality was reported by patients or physicians.

Conclusions:

  • Modified "Provox 2" voice prostheses offer a viable non-surgical alternative for managing shunt leakage in select cases.
  • This approach may avoid the complexities, costs, and risks associated with revision surgery.
  • The requirement for general anesthesia for insertion is a noted disadvantage.