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Titolo:
Methods of bolusing the tracheostomy stoma
Autore:
Beitler, JJ; Yaparpalvi, R; Della Biancia, C; Fontenla, DP;
Indirizzi:
Montefiore Med Ctr, Dept Radiat Oncol, Bronx, NY 10467 USA Montefiore Med Ctr Bronx NY USA 10467 t Radiat Oncol, Bronx, NY 10467 USA Montefiore Med Ctr, Dept Otolaryngol, Bronx, NY 10467 USA Montefiore Med Ctr Bronx NY USA 10467 pt Otolaryngol, Bronx, NY 10467 USA
Titolo Testata:
INTERNATIONAL JOURNAL OF RADIATION ONCOLOGY BIOLOGY PHYSICS
fascicolo: 1, volume: 50, anno: 2001,
pagine: 69 - 74
SICI:
0360-3016(20010501)50:1<69:MOBTTS>2.0.ZU;2-0
Fonte:
ISI
Lingua:
ENG
Keywords:
tracheostomy; subglottic; subglottic extension; tracheostomy bolus; laryngectomy;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Life Sciences
Citazioni:
3
Recensione:
Indirizzi per estratti:
Indirizzo: Beitler, JJ Montefiore Med Ctr, Dept Radiat Oncol, 111 E 210th St, Bronx, NY 10467 USA Montefiore Med Ctr 111 E 210th St Bronx NY USA 10467 10467 USA
Citazione:
J.J. Beitler et al., "Methods of bolusing the tracheostomy stoma", INT J RAD O, 50(1), 2001, pp. 69-74

Abstract

Purpose: The tracheostomy stoma is a potential site of recurrence for patients who have subglottic cancer or subglottic spread of cancer. In these patients, it is important that the anterior supraclavicular field does not underdose the posterior wall of the tracheostomy stoma when using a 6-MV anterior photon field. Conventionally, this problem is surmounted with placement of a plastic tracheostomy tube, which is uncomfortable for the patient, potentially traumatic, and can interfere with vocalization via a tracheal esophageal puncture, Our study was designed to investigate the dosimetry of this region and see if alternate methods would be effective. Methods and Materials: A phantom was constructed using a No. 6 tracheostomy tube as the model for the tracheostomy curvature and size. Using the water-equivalent phantom, film dosimetry, and films oriented parallel to the enface field, we investigated the dose at the depth of the surface of the posterior wall of the phantom's tracheostomy stoma, Dose was measured both inspace and at the tissue interface by scanning points of interest both horizontally and vertically. We measured doses with a No. 6 and No. 8 plastic tracheostomy tube, either 0.5 cm and 1.0 cm of bolus (1-cm airhole) with no tracheostomy tube, as well as 0.3 cm and 0.6 cm tissue-equivalent Aquaplast(Med-Tec Co., Orange City, Iowa) over the tracheostomy. Dosimetry at the posterior interface was confirmed using thermoluminescent dosimeters,Results: Three mm and 6 mm of Aquaplast produced a posterior tracheal doseof 93% and 100%,Conclusion: There is no need for these patients to wear a temporary plastic tracheostomy tube during their external radiation therapy. Aquaplast should allow better position reproducibility, reduce trauma, not interfere withpatient respiratory efforts, and be compatible with vocalization via a tracheal esophageal puncture. (C) 2001 Elsevier Science Inc.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 26/01/20 alle ore 16:21:18