Prime focus of this lecture is on the explanation of Tissue Nematode Infections. Medical parasitology of nematode infections is well explained. In his previous lecture Dr. Dewan Ojla explained the Intestinal nematode infections.
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Lecture Duration - 00:43:42
Release Date - January 2020
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Visceral larva migrans is a syndrome caused by nematodes that are normally parasitic for nonhuman host species. In humans, these nematode larvae do not develop into adult worms but instead migrate through host tissues and elicit eosinophilic inflammation. The most common form of visceral larva migrans is toxocariasis due to larvae of the canine ascarid Toxocara canis; the syndrome is due less commonly to the feline ascarid T. cati and even less commonly to the pig ascarid Ascaris suum. Rare cases with eosinophilic meningoencephalitis have been caused by the raccoon ascarid Baylisascaris procyonis.
Then comes the explanation of Visceral and Ocular Larva Migrans life cycle and clinical features. Clinical disease most commonly afflicts preschool children. Diagnosis of Visceral and Ocular Larva Migrans involves the Eosinophilia, Leukocytosis, Chest X-rays and ELISA.
Furthermore, treatment of these infections is explained in detail. The vast majority of Toxocara infections are self-limited and resolve without specific therapy. In patients with severe myocardial, Central Nervous System, or pulmonary involvement, glucocorticoids may be employed to reduce inflammatory complications.
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Cutaneous larva migrans is a serpiginous skin eruption caused by burrowing larvae of animal hookworms, usually the dog and cat hookworm Ancylostoma braziliense. Angiostrongylus cantonensis, the rat lungworm, is the most common cause of human eosinophilic meningitis. Angiostrongyliasis life cycle, Epidemiology, Pathogenesis, Clinical features, and laboratory findings are well explained.
Infection of human tissues with larvae of Gnathostoma spinigerum can cause eosinophilic meningoencephalitis, migratory cutaneous swellings, or invasive masses of the eye and visceral organs. Gnathostomiasis life cycle, Epidemiology, Pathogenesis, Clinical features, and laboratory findings are well explained. This medical parasitology lecture notes are also available on sqadia.com.
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