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M R Tavares

Publications and source records attributed to M R Tavares.

5 recordsLinked to original sources
PubMed1998

Parathyroid carcinoma.

BACKGROUND: Parathyroid carcinoma is rare and represents 0.1% to 5% of the cases of hyperparathyroidism. New accounts are important to the understanding of these tumors. Experience in 9 cases is reported. METHODS: From 1970 to 1995, 10 patients with parathyroid carcinoma demonstrated by clinical course or pathologic features of malignancy were treated. The patient's clinical data, laboratory and imaging examinations, surgical findings, pathology, recurrences, and survival were analyzed. RESULTS: One male patient was excluded because of insufficient data. Average age was 51 years, with female:male ratio of 2:1. Average calcium level was 14,3 mg/dL. Palpable mass was found in 55%, bone disease in 89%, and renal disease in 78%. Four patients were reoperations. Five were operated on for hyperparathyroidism (1/tertiary). Capsular invasion was the most incident pathologic feature. Local recurrence occurred in 55%; neck node and bone metastasis in 11%, and lung in 33%. Two patients are alive and 5 died of disease. CONCLUSIONS: Parathyroid carcinoma has clinical and laboratory features that can help diagnosis at the first surgery. It seems to have variable malignancy.

Adenoma↗
PubMed1995

[Assessment of vaccination coverage of the basic schedule for the 1st year of life].

Immunization coverage was evaluated in all 12-23 month-old children living in the area were five years before a Primary Care Practice had been set up. All children were investigated through home visits, checking of the immunization chart and relying on mothers' information. In 1986, a baseline study had identified an immunization coverage of under 60% for each of the scheduled vaccines. The current study confirmed that coverage was of 87% for three doses of DTP, 89% for Sabin, 88% for one dose of measles vaccine and 79% for BCG. Despite the high coverage achieved for each specific vaccine, when the basic schedule for the first year was verified, it was observed that only 75% of the children had received the full scheme. Immunization coverage is uneven in different census tracts, being higher in the poorest and more remote areas, where seam the health was given extra attention. A comparison with the routine administrative evaluation of the immunization coverage showed that this underestimated the real coverage. Maternal immunization uptake was also evaluated (antitetanus vaccine during pregnancy) and only 49% of the women were found to be adequately protected. The information collected led to a reorganization of the whole immunization program in a 100% coverage.

Brazil↗
PubMed1989

A double-blind clinical trial with a lotion containing 5% benzoyl peroxide and 2% miconazole in patients with acne vulgaris.

The therapeutic efficacy of a lotion containing 5% benzoyl peroxide and 2% miconazole was compared with 5% benzoyl peroxide alone, in a double-blind, randomized, parallel study. Thirty patients with comedonal or inflammatory acne vulgaris were enrolled. The medications were applied once daily during the first week, and then twice daily for the rest of the trial (45 days). In patients with comedonal acne there was no difference in the effect of the two therapies. In patients with inflammatory acne the percentage reduction of the number of lesions on Day 30 was significantly higher in the benzoyl peroxide plus miconazole group (66%) compared to benzoyl peroxide alone (37%). At Day 45 there was a trend favouring the combined therapy but the difference was not significant. There were no significant differences in the adverse reactions reported by the two groups of patients (erythema, itching or moderate exfoliation).

Acne Vulgaris↗
PubMedDate not supplied

Posterior trapezius myocutaneous flap.

Since last decade, myocutaneous flaps have appeared among the most versatile and safest options for the reconstruction of defects caused by large oncological resections, in the head and neck area. Undoubtedly, the myocutaneous flap of the pectoralis major muscle is the most widespread and accepted, due to the long experience obtained through its use. Nevertheless, it presents some restrictions related not only to its rotation arch, but also to the esthetic consequences for the donor site in females. Over the last years, there has been a growing interest in the posterior trapezius myocutaneous flap (PTMF), which proved to be a valuable alternative for reconstruction in selected cases. The experience of the Department of Head and Neck Surgery, at the University of São Paulo Medical School-Hospital das Clínicas, using this technique, is reported here in a detailed description.

Basal Cell Carcinoma↗