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Biomedical subjects

M C Pfauwadel

Publications and source records attributed to M C Pfauwadel.

6 recordsLinked to original sources
PubMed1991

[Comparative study of temporal parameters of alaryngeal voices. Esophageal and tracheo-esophageal voices].

Recent studies have established significant acoustic and phonetic differences between tracheo-oesophageal (TE) and conventional esophageal voices (EV). 12 alaryngeal voices (2 esophageal, 6 myomucosal shunts, 4 tracheoesophageal phonatory protheses), and 7 normal laryngeal voices were recorded and analyzed. Speech timing including voicing and pauses distribution was evaluated and compared to laryngeal voices. Speakers with TE voices using pulmonary air were able to preserve the rythm and the syntactico-semantic structure of their speeches, as opposed to speakers with EV who often had to insufflate air into the esophagus and therefore had a staccato-like speech. The phonation time was quite similar in both situations, but the length and the number of pauses made the difference.

Aged↗
PubMed1989

Myomucosal shunt following total laryngectomy: a report of 31 cases.

An original technique of voice rehabilitation following total laryngectomy based on the concept of a myomuscosal unit was originally described by Strome. Thirty-one cases of myomucosal shunts (MMS) are analyzed in the present report. The 14 initial cases failed because of a lack clinical and surgical experience and insufficient selection of the patients. Among the last 17 cases, 1 was lost to follow-up, 1 had an insufficient follow-up, and 2 patients refused to speak with the MMS instead of a patent shunt; 5 of the remaining patients had voices evaluated as excellent, 7 had voices interpreted as good and only 1 patient had a voice evaluated as poor. Aspiration was not a problem. Eleven patients were found to stenose their shunt, but fistula were recalibrated successfully. The MMs can be used safely in oncological surgery and only 1 of 31 deaths in our total experience was due to a local recurrence. These findings show that the MMS is a reliable procedure for voice restoration following total laryngectomy; a prosthesis is not required and there are currently no oncological limits to the procedure. However, a very close follow-up of the patients is required after surgery.

Adult↗
PubMedDate not supplied

Voice evaluation of myomucosal shunt after total laryngectomy: comparison with esophageal speech.

The vocal quality attained with a tracheoesophageal myomucosal shunt (MMS) as described by Strome was evaluated in four patients and compared with three esophageal speakers and two normal subjects. The patients with MMSs acquired speech sooner. Fundamental frequency, pitch, timbre, and melody were analyzed with computerized electroglottography and sonography. Intelligibility was deemed better after the MMS primarily because phonation time approximated that of normal speech, and this study suggests that, following total laryngectomy, the vocal quality achieved using the MMS is preferrable to that of esophageal speech.

Aged↗