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Monthly Archives: May 2012
Lyme Disease
Lyme borreliosis (Lyme disease) is caused by the spirochete Borrelia burgdorferi and is transmitted by a specific Ixodes tick species. It is present in the northeastern, middle/south Atlantic, and north central regions of North America and in countries with moderate … Continue reading
Posted in Infectious Disease
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Congenital Heart Disease: Fontan Circulation
The Fontan procedure refers to any operation that results in the flow of systemic venous blood to the lungs without passing through a ventricle. Once the procedure is complete the systemic venous blood directly enters the pulmonary circulation, placing the … Continue reading
Posted in Cardiology, Pediatrics, Resus
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Netropenic Fever
Neutropenia is common with chemotherapy, nadirs at 7-14 days, and is defined as an absolute neutrophil count (ANC) < 500 cells/μL or < 1,000 cells/μL with a predicted nadir of < 500 cells/μL. Fever in a neutropenic patient is defined as a … Continue reading
Posted in Infectious Disease, Oncology
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Sickle Cell Disease: Acute Sequestration Crisis
Acute sequestration crisis is caused by obstruction of the splenic sinusoids with sickled cells. It most commonly presents in children between 6 months and 2 years although it has been reported into the early twenties. Signs and symptoms include the … Continue reading
Posted in Hematology, Pediatrics
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