Malaria vectors in the municipality of Serra do Navio, State of Amapá, Amazon Region, Brazil.

We conducted a survey to determine the vectors of malaria in six localities of Serra do Navio municipality, State of Amapá, from 1990 to 1991. Malaria infection rates of 29.3%, 6.2% and 20.4% were detected by human blood smears in Colônia Agua Branca, Porto Terezinha and Arrependido, respectively. There was no malaria infection detected in Serra do Navio. Fifteen species were identified among 3,053 anopheline mosquitoes collected by human bait and 64.4% were identified as Anopheles albitarsis s.l., 16.7% An. braziliensis, 9.5% An. nuneztovari and 5.8% An. triannulatus. An. darlingi, the main vector of malaria in the Amazon region of Brazil, was scare. Using enzyme-linked immunosorbent assay (ELISA), a total positive rate of 0.8% (23/2876) was found for six species: fifteen An. albitarsis s.l., four An. nuneztovari, and one of each: An. braziliensis, An. triannulatus, An. oswaldoi and An. rangeli. Nine of 23 positive mosquitoes were infected with Plasmodium malariae, eight with P. vivax VK210, three with P. vivax VK247 and three with P. falciparum. Since An. albitarsis s.l. was collected feeding on humans, was present in the highest density and was positive by ELISA for malaria sporozoites, it probably plays an important role in malaria transmission in this area

Coleção subdural na criança: fisiopatologia e tratamento Subdural effusions in children: pathophysiology and treatment

Nove crianças portadoras de coleção subdural (CSD) foram tratadas por meio de derivação subduro-peritoneal. Todas foram submetidas a controle com tomografia computadorizada do encéfalo. O tamanho da coleção subdural foi avaliado por medida de sua área no corte tomográfico por meio de morfologia quantitativa com planímetro. Ocorreu regressão completa ou quase completa da CSD em oito pacientes. Os resultados funcionais foram excelentes em quatro pacientes, bons em três e maus em dois. Foi feita uma revisão da fisiopatologia e do tratamento da CSD na criança.<br>Nine children harboring subdural effusions were treated by subduro peritoneal shunt. These patients were followed-up by CT scans. The area of the subdural effusions was measured by quantitative morphology with a planimeter. With the surgical treatment, the subdural effusion disappeared completely or near completely in 8 patients. The patient's functional state were excellent in 4, good in 3 and bad in 2 in the postoperative follow-up. We aldo reviewed the literature as far as the pathophysiology and the treatment of the subdural effusions are concerned

Aneurisma paraclinóideo: técnica cirúrgica e resultados em 51 pacientes Paraclinoid aneurysms: surgical technique and results in 51 patients

Analisam-se 51 pacientes portadores de 55 aneurismas paraclinóideos (APC) submetidos a tratamento cirúrgico. Em decorrência de tratar-se de procedimento de alta complexidade, descrevemos em pormenor os seus aspectos técnicos. O processo clinóideo anterior foi removido por via extradural após secção da duplicação dural da tenda da fissura orbitária superior e/ou por via intradural. Conseguiu-se exclusão do APC nos 51 pacientes. Em dois casos a clipagem foi parcial e, em três, ocorreu oclusão da ACI. Em 42 (82%) pacientes ocorreu bom resultado; em 5 (10%), incapacidade moderada; em 1 (2%), incapacidade grave e três (6%) faleceram por infarto cerebral. Sete (13,7%) pacientes tiveram lesão adicional do nervo óptico, sendo parcial em 4 (7,7%) e total em 3 (6%).<br>An analysis of the surgical results of 51 patients harboring 55 paraclinoid aneurysms is performed, along with a throughoutful description of it’s complex microsurgical technique. The anterior clinoid process was removed by the extradural route after sectioning the dural duplication between the superior orbital fissure and the dura of the temporal lobe, and/or by the intradural approach. All 55 aneurysms was excluded. In two cases the clipping was partial and the internal carotid artery were ocluded in three cases. The surgical outcome was good in 42 (82%) patients, moderate incapacity occurred in five (10%) and severe incapacity in one patient (2%). Three patients (6%) died due to brain infarction. Seven patients (13,7%) had adicional lesion of the optic nerve, being partial in 4 (7,7%) and total in 3 (6%)