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A partial fraction is a component of a rational expression represented as the sum of simpler fractions. When a rational function is expressed as a ratio of two polynomials, it can often be decomposed into a sum of fractions whose denominators are simpler polynomials, typically linear or irreducible quadratic factors. This process is called partial fraction decomposition, and it is used to simplify complex expressions for integration, solving equations, or analysis.Partial fraction decomposition...
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Epiglottoplasty technique in endoscopic partial laryngectomy.

M Moulin1, C A Righini2, P F Castellanos3

  • 1Otolaryngology-Head and Neck Surgery Department CS 10217, Grenoble Alpes University Hospital, 38043 Grenoble cedex 9, France.

European Annals of Otorhinolaryngology, Head and Neck Diseases
|January 18, 2018
PubMed
Summary

Endoscopic laser surgery for laryngeal cancer can be improved with a new technique. Suturing the epiglottis to the tongue base reconstructs the anatomy, enhancing postoperative swallowing function.

Keywords:
Endoscopic laser surgery of the larynxEpiglottoplastyReconstructive transoral laser microsurgerySwallowing

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Area of Science:

  • Otolaryngology
  • Surgical Oncology
  • Laser Surgery

Background:

  • Endoscopic laser surgery is advantageous for laryngeal cancer resection, minimizing functional deficits.
  • Partial epiglottis resection during this surgery often leaves a raw surface without reconstruction.
  • This can negatively impact postoperative swallowing function.

Purpose of the Study:

  • To describe a novel endoscopic surgical technique for reconstructing the epiglottis after partial resection.
  • To evaluate the efficacy of this technique in restoring preoperative anatomy and improving swallowing.

Main Methods:

  • A surgical technique involving endoscopic suturing of the resected epiglottis edge to the tongue base was developed.
  • This creates a neoepiglottis and reconstructs the vallecula, aiming to restore natural anatomy.
  • The technique was applied following partial epiglottis resection in laryngeal cancer surgery.

Main Results:

  • The described technique successfully created a neoepiglottis and reconstructed the vallecula.
  • Postoperative anatomy closely resembled the preoperative state.
  • Patients experienced improved swallowing function after the procedure.

Conclusions:

  • Endoscopic epiglottis reconstruction following partial resection is feasible and effective.
  • Suturing the epiglottis to the tongue base restores anatomy and improves swallowing.
  • This technique enhances the functional outcomes of endoscopic laser surgery for laryngeal cancer.