RESUMEN
The reaction of [Ru(eta-Cp)(dppf)N(3)] (1) with equimolar amount of SnBr(2) yielded an interesting heterotrimetallic compound [Ru(eta-Cp)(dppf)SnBr(3)] (2) (dppf: 1,1'-bis-diphenylphosphinoferrocene). Compounds 1 and 2 were characterised by IR, NMR (1H, 13C, 31P and 119Sn), and 2, additionally, by 57Fe and 119Sn Mössbauer spectroscopy and X-ray crystallography. The latter results were as follows: monoclinic, C2/c, a = 32.8879(4)A, b = 11.9888(2)A, c = 20.8986(3)A, beta = 92.545(1)degrees, V = 8231.9(2)A(3), Z =8.
Asunto(s)
Bromo/química , Compuestos Ferrosos/química , Rutenio/química , Estaño/química , Cristalografía por Rayos X , Compuestos Ferrosos/síntesis química , Espectroscopía de Resonancia Magnética , MetalocenosRESUMEN
PURPOSE: This study describes lacrimal tract involvement and surgical outcome in patients with mucocutaneous leishmaniasis. METHODS: Four patients, ages 20 to 75 years, had nasal lesions resulting from mucocutaneous leishmaniasis and sought treatment for chronic dacryocystitis. Each patient had had lacrimal symptoms since childhood or early adulthood, concomitantly with the development of upper airway lesions. Dacryocystography showed nasolacrimal duct stenosis in all cases on the affected side. Three patients underwent dacryocystorhinostomy (one bilaterally), and one patient had bilateral dacryocystectomy. RESULTS: Two patients had surgical fistula closure soon after surgery. A sequential endoscopic operation for remotion of a synechia between the fistula and the middle turbinate was successful in one of these patients. Histopathologic analysis of lacrimal sacs and nasal mucous membranes close to the anastomotic site revealed chronic nonspecific inflammatory process and negative immunohistochemistry for Leishmania. CONCLUSIONS: Dacryocystitis may result from nasal mucocutaneous leishmaniasis. The surgical outcome was unsatisfactory in one of the four patients.
Asunto(s)
Dacriocistitis/etiología , Leishmaniasis Mucocutánea/complicaciones , Adulto , Anciano , Brasil/epidemiología , Enfermedad Crónica , Dacriocistitis/diagnóstico por imagen , Dacriocistitis/epidemiología , Dacriocistitis/cirugía , Dacriocistorrinostomía/métodos , Femenino , Humanos , Incidencia , Leishmaniasis Mucocutánea/diagnóstico por imagen , Leishmaniasis Mucocutánea/epidemiología , Leishmaniasis Mucocutánea/cirugía , Masculino , Persona de Mediana Edad , Conducto Nasolagrimal/diagnóstico por imagen , Conducto Nasolagrimal/cirugía , Radiografía , Estudios RetrospectivosRESUMEN
Num periodo de 10 anos o autor estudou 30 pacientes portadores de neurofibromatose palpebral. Destes, 20 casos foram submetidos a tratamento cirurgico segundo tecnica do proprio autor.As palpebras hipertrofiadas tinham suas proporcoes reduzidas a custa da remocao de triangulos de espessura total lateralmente. Os resultados foram considerados bastante satisfatorios, com reducao do volume palpebral e melhora da aparencia dos pacientes. Em apenas um caso houve necessidade de nova intervencao cirurgica em virtude de recurrencia do crescimento tumoral. Nos demais casos operados o resultado obtido foi duradouro