Unlike a standard laryngoscope using a Macintosh blade, the McGrath video laryngoscope (VL) results in a
glottic view even without bringing into alignment the oral, laryngeal, and pharyngeal axes.
Laryngeal cancer is the most common head and neck cancer with 75% of cases confined to the
glottic level (1).
The polypoid-appearing
glottic opening is typically seen in patients with laryngeal amyloidosis.
Approximately 75% are observed at the
glottic level and the rest are in the supraglottic or subglottic region.
The first procedure in particular, is applied to
glottic carcinomas where the preepiglottic space and epiglottis are spared, and reconstruction is done by suturing the cricoid cartilage to the epiglottis, hyoid bone, and tongue base: cricohyoidoepiglottopexy (CHEP).
They expose the control conditions of the respiratory forces and the
glottic efficiency, as well as the compensatory vocal behaviors of individuals, especially those with vocal disorders [1-3].
proposed this procedure in 1984.[2] Endoscopic laser surgery had commonly been used but could result in the formation of granulation tissue leading to renarrowing of the airway or excessive enlargement of the
glottic lumen which was irreversible.[3] Most of the laser surgery actually ablated partial arytenoid cartilage, large proportion of vocal ligament, and the thyroarytenoid (TA) muscle to achieve enlargement of the
glottic lumen.[3],[4],[5] The cricoarytenoid joint (CAJ) and CAJ fixation (CAJF) were often developed after the first session of laser surgery.
The
glottic structures include the true vocal folds, and the subglottis extends from just below the true vocal folds to the inferior border of the cricoid cartilage.
The location of the tumor was classified according to the patient's pathology report into four categories, namely, supraglottic,
glottic, subglottic, and transglottic (tumor extending beyond the larynx).
Six months postoperatively, on endoscopic examination, there was no evidence of
glottic or subglottic stenosis and there was no evidence of stridor.