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Biomedical subjects

Robert Smee

Publications and source records attributed to Robert Smee.

4 recordsLinked to original sources

Salvage nasopharyngectomy for radiation recurrences.

BACKGROUND: Salvage nasopharyngectomy has proven to be worthwhile in the management of persistent or recurrent nasopharyngeal cancer after radiotherapy failure; however, surgical complications are common and the indications for surgery and the choice of operation remain controversial. METHODS: Over a 17-year period from 1985 to 2001 salvage nasopharyngectomy was undertaken on 11 patients. In six patients an anterolateral disassembly approach was employed and five patients were treated with the more limited maxillary swing approach. In seven patients the nasopharynx was reconstructed with a revascularized forearm free graft. RESULTS: Six patients remain alive and free of disease with a minimum follow up of 4 years. There were no incidences of serious postoperative complications. The five patients who failed all did so locally. CONCLUSIONS: Nasopharyngectomy is safe and effective in the treatment of recurrent nasopharyngeal cancer even after multiple courses of radiotherapy.

Adult↗

Down-regulation of KAI1/CD82 protein expression in oral cancer correlates with reduced disease free survival and overall patient survival.

Oral Squamous Cell Carcinoma (OSCC) is a common malignancy. Treatment failure is mainly due to loco-regional disease recurrence. KAI1 is a newly discovered metastasis suppressor gene. Fifty-seven patients with primary OSCC underwent surgery alone or surgery and adjuvant radiotherapy. Immunohistochemical evaluation of KAI1/CD82 and p53 proteins was carried out on specimen obtained at surgery. Within neoplastic fields, KAI1/CD82 expression was downregulated and negative in 42/57 (73.7%) cases. p53 expression was positive in 26/57 (45.6%) cases. No correlation was noted between KAI1/CD82 and p53 expression or clinicopathological parameters. Univariate and multivariate Cox proportional hazard models showed a correlation between KAI1/CD82 expression with disease free survival (P = 0.01, P = 0.009) and overall survival (P = 0.04, P = 0.053) respectively.

Aged↗

Ependymoma.

INTRODUCTION: The management of a patient with an ependymoma is controversial. Although the necessity for a multi-disciplined approach is accepted, the exact roles for all disciplines are poorly defined. REVIEW: This review article examines the current status of histopathological and cytogenetic diagnosis, surgical, chemotherapeutic and radiotherapeutic treatment and future directions.

Brain Neoplasms↗