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Biomedical subjects

N E Maragos

Publications and source records attributed to N E Maragos.

8 recordsLinked to original sources
PubMed1992

Physiologic assessment of arytenoid adduction.

Arytenoid adduction as described by Isshiki is a surgical technique used to improve vocal quality by adducting the arytenoid cartilage of a paralyzed vocal fold, medializing the fold, and closing the posterior glottic aperture. Surgical results of this operation were evaluated by preoperative and postoperative voice recordings, laryngoscopy, and stroboscopy. Objective measurements of vocal jitter, shimmer, and signal to noise ratio were done to assess changes in the vibratory patterns, and analysis of data from 12 patients revealed improved glottic function postoperatively. Often an anterior medialization procedure, primarily a type I thyroplasty, was used to supplement the posterior medialization achieved by adduction of the arytenoid. Arytenoid adduction is recommended as an effective and reliable treatment for posterior glottic insufficiency.

Adult↗
PubMed1990

Physiologic assessment of Isshiki type III thyroplasty.

Isshiki type III thyroplasty is a laryngeal framework surgical procedure that lowers a patient's pitch. To objectively assess the procedure, preoperative and postoperative voice recordings, as well as electroglottography and photoglottography were performed. Jitter, shimmer, and glottographic quotients were measured to assess changes in vibratory pattern. The mean and range of frequencies in contextual speech was also determined. Analysis of the preoperative and postoperative data from two patients with over 1 year follow-up showed a decrease in frequency of vibration. Postoperatively, the vocal folds still vibrated in a regular pattern as described by the myoelastic-aerodynamic theory. There was no increase in jitter or shimmer quotient. The Isshiki type III thyroplasty appears capable of lowering fundamental frequency of speech without adversely affecting the vibratory mode of the vocal folds.

Adult↗
PubMed1990

Hoarseness.

The symptom of hoarseness is one with many causes and several treatments. It is the abnormal production of sound, perceived as raspiness, breathiness, harshness, vocal tension, or lower pitched voice. Whether the patient notices vocal fatigue or says that it's harder to talk with a worsening voice as the day progresses, the underlying cause of the hoarseness must be found. Only then can the hoarseness or the disease leading to it be treated competently to bring the patient and the voice back to health.

Hoarseness↗
PubMed1975

Symposium. ENT for nonspecialists. The dizzy patient.

Dizziness or vertigo may be a perplexing situation to both the patient and the physician, The most important diagnostic factor is a careful history; a dizziness questionaire may be helpful. An otorhinolaryngologic and neurologic evaluation is necessary, and additional consultations may be in order, including vestibular testing and other laboratory studies, The etiology still may not be apparent, and the patient may need to be treated symptomatically and reevaluated periodically.

Central Nervous System Diseases↗