Survival times of Provox™ valves
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...
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| Veröffentlicht in: | Journal of laryngology and otology 1996-01, Vol.110 (1), p.37-42 |
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| container_title | Journal of laryngology and otology |
| container_volume | 110 |
| creator | de Carpentier, J. P. Ryder, W. D. J. Saeed, S. R. Woolford, T. J. |
| description | 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. |
| doi_str_mv | 10.1017/S0022215100132670 |
| format | Article |
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P.</creatorcontrib><creatorcontrib>Ryder, W. D. J.</creatorcontrib><creatorcontrib>Saeed, S. R.</creatorcontrib><creatorcontrib>Woolford, T. J.</creatorcontrib><title>Survival times of Provox™ valves</title><title>Journal of laryngology and otology</title><addtitle>J. Laryngol. Otol</addtitle><description>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.</description><subject>Adult</subject><subject>Aged</subject><subject>artificial</subject><subject>Biological and medical sciences</subject><subject>Diseases of the upper aerodigestive tract</subject><subject>Ent and stomatology</subject><subject>Female</subject><subject>Follow-Up Studies</subject><subject>Humans</subject><subject>Laryngeal Neoplasms - radiotherapy</subject><subject>Laryngectomy</subject><subject>Laryngectomy - methods</subject><subject>Larynx</subject><subject>Larynx, Artificial</subject><subject>Main Articles</subject><subject>Male</subject><subject>Medical sciences</subject><subject>Middle Aged</subject><subject>Prosthesis Failure</subject><subject>Radiotherapy. Instrumental treatment. Physiotherapy. Reeducation. Rehabilitation, orthophony, crenotherapy. 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J.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c516t-3b1d88b8dfef5733d825a9470b51092de0526ae9484673af61579015b937a6183</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1996</creationdate><topic>Adult</topic><topic>Aged</topic><topic>artificial</topic><topic>Biological and medical sciences</topic><topic>Diseases of the upper aerodigestive tract</topic><topic>Ent and stomatology</topic><topic>Female</topic><topic>Follow-Up Studies</topic><topic>Humans</topic><topic>Laryngeal Neoplasms - radiotherapy</topic><topic>Laryngectomy</topic><topic>Laryngectomy - methods</topic><topic>Larynx</topic><topic>Larynx, Artificial</topic><topic>Main Articles</topic><topic>Male</topic><topic>Medical sciences</topic><topic>Middle Aged</topic><topic>Prosthesis Failure</topic><topic>Radiotherapy. Instrumental treatment. Physiotherapy. Reeducation. Rehabilitation, orthophony, crenotherapy. 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P.</au><au>Ryder, W. D. J.</au><au>Saeed, S. R.</au><au>Woolford, T. J.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Survival times of Provox™ valves</atitle><jtitle>Journal of laryngology and otology</jtitle><addtitle>J. Laryngol. Otol</addtitle><date>1996-01</date><risdate>1996</risdate><volume>110</volume><issue>1</issue><spage>37</spage><epage>42</epage><pages>37-42</pages><issn>0022-2151</issn><eissn>1748-5460</eissn><coden>JLOTAX</coden><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. 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| ispartof | Journal of laryngology and otology, 1996-01, Vol.110 (1), p.37-42 |
| issn | 0022-2151 1748-5460 |
| language | eng |
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| source | MEDLINE; Cambridge University Press Journals Complete |
| subjects | Adult Aged artificial Biological and medical sciences Diseases of the upper aerodigestive tract Ent and stomatology Female Follow-Up Studies Humans Laryngeal Neoplasms - radiotherapy Laryngectomy Laryngectomy - methods Larynx Larynx, Artificial Main Articles Male Medical sciences Middle Aged Prosthesis Failure Radiotherapy. Instrumental treatment. Physiotherapy. Reeducation. Rehabilitation, orthophony, crenotherapy. Diet therapy and various other treatments (general aspects) Recurrence Regression Analysis Time Factors |
| title | Survival times of Provox™ valves |
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