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Alvaro Sánchez Contreras

Publications and source records attributed to Alvaro Sánchez Contreras.

2 recordsLinked to original sources

Paget disease of bone in Colombia and Latin America.

BACKGROUND: Paget disease of bone has an unknown etiology, having complex pathogenesis leading to increased bone resorption in the first phase and an excess of bone formation with more advanced disease. The disease has been associated to white ancestry in Europe and other countries, being less common in people without European origin. OBJECTIVES: The objectives of this study were to describe the Colombian cases of Paget disease and search the published literature for more Latin American cases and their characteristics. METHODS: Electronic databases were searched up to August 2004: MEDLINE, PUBMED, BIREME LILAC, and MEDCARIB, evaluating the entire bibliography regarding reports of Paget disease in Latin America during the last 30 years. Additionally, we searched the medical databases of local reference centers to describe new cases from Colombia. RESULTS: We found 14 cases of Paget disease from Colombia; 12 of them were previously reported elsewhere and 2 additional cases were found in the medical database of a local reference center. We describe the main clinic characteristics, including age, symptoms, type and stage of involved bone (monostotic or polyostotic), and treatment, which generally are similar to cases from Europe or the United States. The literature search showed that a total of 1149 cases of Paget disease have been previously published from Latin America in the last 30 years, more than half of them coming from Argentina and Brazil with predominant white ancestry. CONCLUSIONS: We emphasize the presence of white European origin or ancestry in the great majority of reported cases of Paget disease in Latin America and Colombia. Studies of factors that influence the etiology in cases of non-European ancestry would be of interest.

Aged↗

Hashimoto encephalopathy (autoimmune encephalitis).

Patients with Hashimoto thyroiditis may have neurologic manifestations that have been described in the literature for some decades now; these include psychiatric disorders, abnormal movements, and simulation of cerebrovascular events. Nuclear magnetic resonance (MRI) studies have revealed diffuse leukoencephalopathy in most cases. We describe a case having clinical manifestations simulating cerebrovascular events, together with cognitive alterations (a presentation already described in other patients). Among the 2 main forms of neurologic manifestations, the cognitive type, which is probably associated with endocrinologic alteration, may improve with hormone supplement. Those alterations simulating cerebrovascular events are most probably related to autoimmune vasculitis. The latter may improve with the administration of corticosteroids, which are proposed as treatment of this disorder.

Journal Article↗