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The causative agent is roundworm.
The transmission path is feck-op. Anthroponosis, geohelmintosis - for the maturation of eggs, their stay in the soil at 24 ° C is necessary.
Eggs enter the intestine, larvae are released from them, which enter the portal vein through the wall of the intestine, then into the liver (by the 5th day). By the 10th day - hematogenously into the lungs, where they molt 2 times, break through the wall of the alveoli and through the respiratory tract enter the oropharynx, where they are swallowed and again enter the intestine (day 15). Shedding 2 more times - become sexually mature. 10-12 weeks after the invasion, eggs are laid. During migration - intoxication and sensitization by the products of the exchange of larvae.
The clinical picture.
With invasion - cm intoxication.
In the liver - pain, heaviness in the right hypochondrium, hepatomegaly.
In the lungs — Leffler’s family — a cough, dry or with sputum, spasm of blood, an asthmatic comp, shortness of breath, chest pain, wheezing, with Rg - “volatile infiltrates” that change configuration and localization.
In the blood - eosinophilia.
In the intestinal phase - dyspepsia, malabsorption.
Where roundworms get there, there will be a complication - acute appendicitis, hepatic colic, obstructive jaundice, pancreatitis, obstruction, perforation.
Diagnosis - detection of eggs in feces, larvae in sputum.
The early phase is mebendazole (100 mg / 2 p / day for 4 days), thiabendazole (50 mg / kg / 2 p / day for 5-7 days).
Intestinal phase - decaris (levamisole) 150 mg once, pyrantel (10 mg / kg), medamine (10 mg / kg), piperazine (1g / 3r / day for 2 days).
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