Transventricular chondroplastic laryngotomy--a new surgical technique for the endolarynx.
Current surgical techniques for laryngeal exposure pose distinct limitations. To address these issues, this article describes a novel surgical technique. Our technique, termed Transventricular Chondroplastic Laryngotomy, allows for extensive and direct external access to the endolarynx. This procedure is described in both a cadaver and animal models. Three pigs were submitted to thyroid cartilage window opening without touching the laryngeal ventricle, and seven animals were submitted to the full procedure, opening a thyroid cartilage window with wide ventricular opening. The animals were sacrificed 20 days following the procedure. Prior to sacrifice, all animals underwent laryngoscopic examination and following euthanasia, the larynx and cervical regions were examined grossly, in addition to histologically. This surgery allowed for extensive exposure of the ipsilateral vocal fold and the contralateral hemilarynx, through the laryngeal ventricle, and thus enabled bi-instrumental handling of the vestibular fold, laryngeal ventricle, and from the anterior commissure to the arytenoids, bilaterally. No postoperative complications were observed. Access to the ventricle was easily and directly achieved through the thyroarytenoid muscle. We hypothesize that transventricular chondroplastic laryngotomy will emerge as the surgical technique of choice in patients presenting with difficult exposure and/or traditional surgical instruments are not feasible. Future transventricular chondroplastic laryngotomy clinical applications of the procedure are discussed including the resection of lesions and more complex reconstruction of vocal folds.
Sarvat
Marcos
M
Instituto de Laringologia e Voz do Rio de Janeiro, 22271-020 Botafogo, Rio de Janeiro, Brazil. sarvat@centroin.com.br
Steffen
Nédio
N
Costa
Henrique Olival
HO
Pontes
Paulo
P
D000818:Animals; D006801:Humans; D066298:In Vitro Techniques; D007821:Laryngeal Muscles / Q000473:pathology / Q000601:surgery; D007828:Laryngoscopy / Q000379:methods*; D007830:Larynx / Q000473:pathology / Q000601:surgery*; D013517:Otorhinolaryngologic Surgical Procedures / Q000379:methods*; D011183:Postoperative Complications; D013552:Swine; D013957:Thyroid Cartilage / Q000473:pathology / Q000601:surgery; D013997:Time Factors