PubMed Health⌕ Search

Biomedical subjects

J J Townsend

Publications and source records attributed to J J Townsend.

75 records · Page 5Linked to original sources

Current evidence for the organic etiology of spastic dysphonia.

For over 100 years it has been universally assumed in the literature that spastic dysphonia is a functional or psychoneurotic voice disorder. In the last few years, new data have accumulated that support the concept that spastic dysphonia is caused by an organic, rather than a functional, abnormality. Histologic examination of segments of the recurrent laryngeal nerve removed from patients with spastic dysphonia has revealed myelin abnormalities in 30% of the nerves examined. Neurologic examination indicated brain stem or basal ganglia disturbances in some patients who had no apparent nerve disease.

Axons↗

Modified procarbazine, CCNU, and vincristine (PCV 3) combination chemotherapy in the treatment of malignant brain tumors.

Fifty-eight patients harboring recurrent malignant brain tumors were evaluated. CCNU (110 mg/m2) was administered on Day 1, procarbazine (60 mg/m2) was administered daily for 14 days beginning on Day 8, and vincristine (1.4 mg/m2) was administered on Days 8 and 29 of each 6-week cycle of therapy. Therapy was continued until tumor progression was documented. Before each course, a neurologic examination was performed and radionuclide and computerized tomographic scans were obtained. Response and progression were defined as improvement or deterioration, respectively, in at least two of the three tests. Of the 46 patients harboring recurrent malignant gliomas, 12 (26%) responded to therapy, 18 (39%) had tumor progression, and 16 (35%) had disease stability. Nineteen of the 46 patients were not previously treated with another form of chemotherapy: eight (42%) responded to therapy, eight (42%) had disease stability, and only three (16%) had early tumor progression. The median time to tumor progression was 26 weeks for patients responding to therapy or having disease stability. Approximately 30% of the patients were alive without evidence of tumor progression at 1 year. Evaluated by time to tumor progression and rate of tumor response or stabilization, this combination was similar to the BCNU-5-fluorouracil combination used for patients harboring recurrent malignant glioma.

Brain Neoplasms↗