WELLINGTON ALVES FILHO

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LIM/28 - Laboratório de Cirurgia Vascular e da Cabeça e Pescoço, Hospital das Clínicas, Faculdade de Medicina

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Autor: CERNEA, Claudio Roberto ×

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  • article 4 Citação(ões) na Scopus
    Hypomagnesemia associated with hypocalcemia after total thyroidectomy: an observational study
    (2016) MAHMOUD, Renata Regina da Graca Lorencetti; ARAUJO NETO, Vergilius Jose Furtado de; ALVES, Wellington; LIN, Chin Shien; LEITE, Ana Kober Nogueira; MATOS, Leandro Luongo; ARAUJO FILHO, Vergilius Jose Furtado de; CERNEA, Claudio Roberto
    Introduction: Serum magnesium is frequently low in patients with hypocalcemia after total thyroidectomy. The aim of the present study was to analyze the variations in serum magnesium and calcium concentrations after total thyroidectomy, and the relationship between both ions. Materials and methods: We conducted an observational study of 142 patients who had undergone total thyroidectomy, measuring serum calcium and magnesium levels preoperatively and on the day following surgery. The incidence of postoperative hypocalcemia was compared with that of postoperative hypomagnesemia. Results: A total of 142, total thyroidectomies were performed: 54 patients (38%) presented with hypocalcemia on the first postoperative day. A marked decrease in blood magnesium in the group of patients with hypocalcemia was observed when compared to those with normal calcemia on the first postoperative day (mean variation respectively, 0.125 +/- 0.065 mmol/L versus 0.035 +/- 0.020 mmol/L; P = 0.0002). Conclusion: Hypomagnesemia is significantly associated with early hypocalcemia following thyroidectomy.
  • article 10 Citação(ões) na Scopus
    Malignant solitary fibrous tumor of the thyroid: a case-report and review of the literature
    (2014) ALVES FILHO, Wellington; MAHMOUD, Renata Regina da Graca Lorencetti; RAMOS, Daniel Marin; ARAUJO-FILHO, Vergilius Jose Furtado de; LIMA, Patricia Picciarelli de; CERNEA, Claudio Roberto; BRANDAO, Lenine Garcia
    Solitary fibrous tumor (SFT) is an uncommon spindle-cell neoplasm that most often involves the pleura, rarely occurring in extra-thoracic locations. Twenty-six cases of SFT arising in the thyroid gland have been described. We report a case of a 60-year-old woman presenting an 8-month history of enlargement of the neck associated with dysphagia. The patient underwent a right hemithyroidectomy and SFT of the thyroid was diagnosed. Immunohistochemistry showed positivity for CD34 marker, and the high number of mitoses and the presence of cellular atypia suggested that the tumor was malignant. To our knowledge, this is the second case of malignant SFT of the thyroid gland ever reported. Due to the rarity of these tumors, the indication of adjuvant therapy and prognosis are uncertain. Long-term follow-up after surgical resection seems to be advisable.