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Survival times of Provox™ valves

Published online by Cambridge University Press:  29 June 2007

J. P. de Carpentier*
Affiliation:
Ancoats Hospital, the Christie Hospital, the Manchester Royal Infirmary, the Royal Preston Hospital and Wythenshawe Hospital, UK.
W. D. J. Ryder
Affiliation:
Ancoats Hospital, the Christie Hospital, the Manchester Royal Infirmary, the Royal Preston Hospital and Wythenshawe Hospital, UK.
S. R. Saeed
Affiliation:
Ancoats Hospital, the Christie Hospital, the Manchester Royal Infirmary, the Royal Preston Hospital and Wythenshawe Hospital, UK.
T. J. Woolford
Affiliation:
Ancoats Hospital, the Christie Hospital, the Manchester Royal Infirmary, the Royal Preston Hospital and Wythenshawe Hospital, UK.
*
Address for correspondence: J. de Carpentier, 38 Clyde Road, West Didsbury, Manchester M20 2WJ.

Abstract

This study was performed to assess the survival times of the Provox™ valve in the Manchester area. Thirty-nine patients from four hospitals, representing 81 valve failures, were studied. The effects of the timing of the tracheo-oesophageal puncture, previous radiotherapy, and the presence and timing of cricopharyngeal myotomy on valve life were analysed. Regression analysis using an extension of the Cox model to allow strata showed that the lifetime of the first valve only is adversely affected by previous radiotherapy. The other covariates do not have a statistically significant effect on valve survival. The median valve survival is 4.5 months, (range one to 12 months). A small percentage of valve users with particularly frequent valve failures may require additional support and prolonged anti-fungal therapy.

Type
Main Articles
Copyright
Copyright © JLO (1984) Limited 1996

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References

Arjas, E. (1988) A graphical method for assessing goodness of fit in Cox's proportional hazards model. Journal of the American Statistical Association 83: 204212.CrossRefGoogle Scholar
Blom, E. D., Singer, M. I., Hamaker, R. C. (1986) A prospective study of tracheo-oesophageal speech. Archives of Otolaryngology, Head and Neck Surgery 112: 440447.CrossRefGoogle Scholar
Cox, D. R., Oakes, D. (1984) Analysis of Survival data. Monographs on statistics and applied probability 21. Chapman and Hall, London, pp 91110.Google Scholar
Duguay, M. J., Feudo, P. Jr (1988) The process of post laryngectomy rehabilitation. In The Larynx: A Multidisciplinary Approach (Fried, M. P., ed.), Little, Brown & Co., Boston-Toronto, pp 603613.Google Scholar
Garth, R. J. N., McRae, P. H., Rhys Evans, P. H. (1991) Tracheo-oesophageal puncture: a review of problems and complications. Journal of Laryngology and Otology 105: 750754.CrossRefGoogle ScholarPubMed
Hilgers, F. J. M., Balm, A. J. M. (1993) Long term results after total laryngectomy with low-resistance, indwelling Provox voice prosthesis system. Clinical Otolaryngology 18: 517523.CrossRefGoogle ScholarPubMed
Hilgers, F. J. M., Schouwenburg, P. F. (1990) A new low- resistance, self retaining prosthesis (Provox™) for voice rehabilitation after total laryngectomy. Laryngoscope 100: 12021207.CrossRefGoogle ScholarPubMed
Kalbfleisch, J. D., Prentice, R. L. (1980) The Statistical Analysis of Failure Time Data. Wiley, New York, pp 70142.Google Scholar
Kaplan, E. L., Meier, P. (1958) Non-parametric estimation from incomplete observations. Journal of the American Statistical Association 53: 457481.CrossRefGoogle Scholar
Mahieu, H. F., van Saene, H. K. J., Rosingh, H. J., Schutte, H. K. (1986) Candida vegetations in silicone voice prostheses. Archives of Otolaryngology 112: 321325.CrossRefGoogle ScholarPubMed
Maniglia, A. J., Lundy, D. S., Casiano, R. C., Swim, S. C. (1989) Speech restoration and complications of primary versus secondary tracheoesophageal puncture following total laryngectomy. Laryngoscope 99: 489491.CrossRefGoogle ScholarPubMed
Pindzola, R. H., Cain, B. H. (1988) Acceptability ratings of tracheoesophageal speech. Laryngoscope 98: 394397.CrossRefGoogle ScholarPubMed
Singer, M. I., Blom, E. D. (1981) Selective myotomy for voice restoration after total laryngectomy. Archives of Otolaryngology, Head and Neck Surgery 107: 670673.CrossRefGoogle ScholarPubMed
Singer, M. I., Blom, E. D., Hamaker, R. C. (1986) Pharyngeal plexus neurectomy for alaryngeal speech rehabilitation. Laryngoscope 96: 5054.CrossRefGoogle ScholarPubMed
Taub, S., Bergner, L. H. (1973) Air bypass voice prosthesis for vocal rehabilitation of laryngectomees. American Journal of Surgery 125: 748756.CrossRefGoogle ScholarPubMed
Trudeau, M. D., Hirsch, S. M., Schuller, D. E. (1986) Vocal restorative surgery: Why wait? Laryngoscope 96: 975977.CrossRefGoogle ScholarPubMed
van Lith-BijI, J. T., Mahieu, H. F., Patel, P., Zijlstra, R. J. (1992) Clinical experience with the low-resistance Groningen button. European Archives of Oto-rhino-laryngology 249: 354357.CrossRefGoogle Scholar
van Weissenbruch, R., Albers, F. W. J. (1992) Voice rehabilitation after total laryngectomy. Acta Oto-rhinolaryngologica (Belgica) 46: 221246.Google ScholarPubMed
Wenig, B. L., Mullooly, V., Levy, J. (1989) Voice restoration following laryngectomy: the role or primary versus secondary tracheoesophageal puncture. Annals of Otology, Rhinology and Laryngology 98: 7073.CrossRefGoogle ScholarPubMed
Williams, S. E., Watson, J. B. (1987) Speaking proficiency variations according to method of alaryngeal voicing. Laryngoscope 97: 737739.CrossRefGoogle ScholarPubMed
Yoshida, G. Y., Hamaker, R. C., Singer, M. I., Blom, E. D., Charles, G. A. (1989) Primary voice restoration at laryngectomy: 1989 update. Laryngoscope 99: 10931095.CrossRefGoogle ScholarPubMed