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Biomedical subjects

A Lopes

Publications and source records attributed to A Lopes.

82 records · Page 5Linked to original sources
PubMedDate not supplied

Chondrosarcoma secondary to hereditary multiple exostosis treated by extended internal hemipelvectomy.

The authors report on the case of a 28-year-old patient with extensive chondrosarcoma of the left ischium and pubis involving hip joint, skin, and soft tissue of the gluteal region, secondary to hereditary multiple exostosis submitted to an extended internal Enneking type II and III hemipelvectomy. No prosthesis or arthrodesis was used. A few years ago, patients with extensive tumors like this one were treated with interilioabdominal amputation, resulting in a loss of quality of life. Two years after the limb-preserving surgery, this patient was disease free, with good functional results, including bipedal ambulation with support.

Adult↗
PubMedDate not supplied

Treatment of severe actinic rectitis.

BACKGROUND: The authors report the treatment of three female patients with severe actinic rectitis, with stenosis or perforation, submitted to anterior proctosigmoidectomy and transanal coloanal anastomosis. METHODS: In all cases surgery consisted of total proctosigmoidectomy, mucosectomy of the anal canal, lowering of the left colon through the pelvis and transanal anastomosis performed manually at the level of the pectineal line using separate absorbable sutures. A protective intestinal shunt was performed in all cases. RESULTS: The three patients did not present transoperative or immediate postoperative complications, but the first patient developed deep venous thrombosis of the leg that was submitted to successful clinical treatment. The intestinal shunts were later closed in all three cases. Sphicter function was considered very good in the first case and regular in the remaining two. CONCLUSION: The surgical technique utilized was considered to be adequate for the cases reported and is the first option for the maintenance of transit in patients with severe actinic rectitis since the anastomosis is performed using non-irradiated colon with the pectineal line, practically outside the pelvis.

Aged↗
PubMedDate not supplied

Evaluation of prostate specific antigen in the prognosis of patients with advanced prostate cancer.

OBJECTIVE: To evaluate the survival rate of patients with advanced prostate cancer in a univariate form, according to the preoperative and first postoperative determination of PSA levels. MATERIALS AND METHODS: From February 1987 to June 1995, 92 patients were submitted to maximum blockage androgen (subcapsular and antiandrogen orchiectomy), independent of clinical symptoms shown upon admission to the Cancer Hospital. The antiandrogens (ciproterone acetate and flutamide) were administered until the patient present progression of the disease. RESULTS: The age of patients varied from 44 to 89, with a median of 70 years old. In the 6th, 36th and 60th months the global survival rate was 80%, 38% and 20%, respectively. The preoperative PSA ranged from 2 to 4017 ng/ml, with a median of 98 ng/ml (98% had PSA greater than or equal to 10 ng/ml). The first postoperative PSA ranged from 1 to 3840 ng/ml, with a median of 20 ng/ml. There was a tendency towards a better survival rate only in patients with initial PSA from 2 to 99 ng/ml (p = 0.06745). The survival rate of patients at 36 months after the initial total blockage androgen, with first PSA level from 1 to 4, 5 to 49 and over 49 ng/ml was 72%, 48% and 8%, respectively (p = 0.00004). In the final examination, 34 (37%) patients were considered stable and 58 (63%) had disease progression. CONCLUSION: The PSA determination performed on the 30th postoperative day is important in the evaluation of advanced prostate cancer prognosis.

Adult↗
PubMedDate not supplied

Actinic rectitis--the role of colostomy.

From 4132 patients treated with radiation therapy due to gynecological malignancy from 1974 to 1988, 527 (12.75%) developed some grade of actinic rectitis with clinical manifestation. The authors analyzed the efficacy of colostomy in the management of 10 women with actinic rectitis grades I and II (Sherman classification) submitted to clinical treatment without response. Pelvic radiation therapy, clinical findings, proctoscopy and rectal biopsy were the basis for the diagnosis and staging of the actinic rectitis. All colostomies were made in the transverse colon and the median follow up from colostomy to last review was 53 months. Eight patients had complete remission of clinical findings after colostomy, but one had recurrence of symptoms 2 years later. One patient had incomplete remission but with clinical improvement and one patient had tumor recurrence. From 8 patients with complete clinical remission, 2 had the colostomies closed, but in 1 was restored 3 months later due to rectum-vaginal fistula.

Adult↗