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Biomedical subjects

G M de Góes

Publications and source records attributed to G M de Góes.

At least 19 recordsLinked to original sources

Sacral agenesis: why is it so frequently misdiagnosed?

Thirty-four patients with sacral agenesis were seen from 1954 to 1983, cases of meningomyelocele excluded. Five recognizable and consistent patterns of bone malformation were identified. Urodynamic examinations were done in 10 of the 34 patients. Their evaluation and response to treatment are analyzed; we tried to determine and establish the possible causes for its late diagnosis and consequences regarding the upper urinary tract.

Abnormalities, Multiple↗

Vinblastine, actinomycin D, bleomycin, cyclophosphamide and cis-platinum for advanced germ cell testis tumors: Brazilian experience.

Disseminated germ cell testicular cancer proved to be highly sensitive to platinum-containing chemotherapy regimens. We present data concerning the treatment of advanced seminoma and nonseminomatous tumors in a developing country. We treated 30 patients with advanced germ cell testis tumors with 3 or 4 cycles of vinblastine, actinomycin D, bleomycin, cyclophosphamide and cis-platinum. Surgical resection of residual masses was done 30 days after completion of chemotherapy in 18 patients. The histology of the primary tumor was seminoma in 13 patients and nonseminomatous tumors in 17. Toxicity was mild and no treatment-related deaths occurred. All 13 patients (100 per cent) with seminoma and 12 of 17 patients (71 per cent) with nonseminomatous tumors had a complete response to chemotherapy, and 1 of 17 patients was free of disease after a debulking operation and additional chemotherapy. A total of 3 patients with seminoma and 2 with nonseminomatous tumors had recurrences 5 to 8 months after an initial complete response and received additional chemotherapy (VP-16 regimen) with or without radiotherapy. Complete clinical response was achieved in 4 of 5 patients. Median followup was 24 months (range 8 to 38 months) in the 13 patients with seminoma and 28 months (range 9 to 58 months) in those with nonseminomatous tumors, and 13 (100 per cent) and 12 (71 per cent), respectively, are alive without evidence of disease. These data suggest that the protocol of vinblastine, actinomycin D, bleomycin, cyclophosphamide and cis-platinum is highly effective and minimally toxic in the treatment of disseminated germ cell testicular cancer, inducing an 83 per cent long-lasting clinical remission. Seminomas seem to be equally or even more sensitive than nonseminomatous tumors to this platinum-containing chemotherapy regimen. Recurrence after initial complete response can be treated successfully with regimens containing VP-16.

Adult↗

Renal autotransplantation in the treatment of hypertensive disease associated with unilateral renal artery stenosis.

Renal autotransplantation was performed on 15 subjects with renovascular hypertensive disease owing to unilateral renal artery stenosis. Kidney survival was achieved in 14 cases. Followup for a minimum of 6 months showed 50 per cent of the patients to be cured, 28 per cent improved and 22 per cent unchanged according to the criteria described herein. There was an 85 per cent cure rate among a subgroup of patients less than 35 years old, with less than 20 months of hypertension and non-atherosclerotic lesions. Plasma renin assay was not found to be a good prognostic indicator as reported previously. In our hands the method showed only a 70 per cent correlation with the final results. Non-atherosclerotic lesions had a better prognosis.

Adolescent↗

Varicocele: the value of reflux in the spermatic vein.

Three groups of patients were studied: varicocele with altered spermogram (24 patients), varicocele with normal spermogram (12 patients), and 12 normal individuals. All underwent selective spermatic venography by the Seldinger technique. No statistically significant differences were found as to the presence of spermatic vein reflux in three groups, nor between varicocele patients and controls. It was concluded that reflux per se cannot explain the alterations of spermatogenesis, nor does it have prognostic value in varicocele.

Adolescent↗