ascariasis


Also found in: Dictionary, Thesaurus, Encyclopedia, Wikipedia.

ascariasis

 [as″kah-ri´ah-sis]
infection by the nematode Ascaris lumbricoides, seen in temperate and tropical regions of the world; it is common in the southern mountain region of the United States and is associated with poor sanitation such as when human feces is used as fertilizer. The Ascaris eggs develop into larvae in the soil and on growing plants on which feces have been deposited. When such vegetables are eaten without having been properly washed or cooked, live larvae are carried into the digestive system along with the food. Migrating from the intestines into the blood, then to the lungs and the esophagus, the larvae finally return to the intestines, where they grow to maturity, reaching a length ranging from 15 to 35 cm (6 to 14 in).

Ascaris infection may go unsuspected until a worm is passed in the stool. But there may be colic or other abdominal symptoms, and occasionally the worms are vomited during their passage through the esophagus. In children, “wandering worms” may emerge through the skin near the navel, and in adults, near the groin. Infected children usually are thin because the worms consume vital nutrients and inhibit the digestion of proteins. Loss of appetite and angioneurotic edema are common, and the face may be swollen.

Accurate diagnosis of the presence and extent of Ascaris infection usually depends on the detection of eggs in a stool sample examined microscopically. Treatment involves the use of medications such as mebendazole or pyrantel. to destroy and expel the parasites, and is completely successful in nearly every case. Prevention of Ascaris infection depends primarily on the sanitary disposal of human feces and discontinuing their use as fertilizer. Also important are the thorough washing of hands before food is prepared, and the careful cleaning and cooking of possibly infected foods.

as·ca·ri·a·sis

(as'kă-rī'ă-sis), Do not confuse this word with acariasis.
Disease caused by infection with Ascaris or related ascarid nematodes.
[G. askaris, an intestinal worm, + -iasis, condition]

ascariasis

(ăs′kə-rī′ə-sĭs)
n.
Infestation with or disease caused by the parasitic roundworm Ascaris lumbricoides.

ascariasis

Infestation by the nematode Ascaris lumbricoides.
Epidemiology Infection occurs after ingesting eggs in contaminated food or, more commonly, is carried to mouth by the hands after contact with contaminated soil. After an early pulmonary phase (larval migration), worms stay in the intestine.
Clinical findings Often asymptomatic.
Clinical findings, larval migration to lungs Wheezing, cough, chest pain, dyspnoea, pneumonitis at time of transpulmonary migration.
Clinical findings, larval migration elsewhere Conjunctivitis, fever, seizures, rash.
Clinical findings with mature worms Abdominal colic, nausea, vomiting, anorexia, anal pruritus, weight loss, diarrhoea, malabsorption.
Management Mebendazole, piperazine.

ascariasis

Infectious disease Infection by a nematode, Ascaris lumbricoides Epidemiology Infection occurs after ingesting eggs in contaminated food or more commonly, carried to mouth by hands after contact with contaminated soil; after an early pulmonary phase–larval migration, worms stay in the intestine Clinical Asymptomatic; pneumonitis at time of transpulmonary migration; diarrhea, abdominal colic Management Mebendazole, pyrantel pamoate

as·ca·ri·a·sis

, ascaridiasis , ascaridosis , ascariosis (askă-rīă-sis, -ri-dīă-sis, -ri-dōsis, -rē-ōsis)
A disease caused by infection with Ascaris or related ascarid nematodes.
[G. askaris, an intestinal worm, + -iasis, condition]

ascariasis

Infestation with the roundworm Ascaris lumbricoides which lives, often in considerable numbers, in the small intestine.
References in periodicals archive ?
Biliary ascariasis as a cause of acute cholangitis: a case report.
Encephalopathy as a presenting feature of ascariasis manifestation is very unusual and rarely mentioned in the literature.
Thus, immediate surgical treatment in ascariasis is indicated in the presence of peritonitis and persistent intestinal obstruction.
Ascariasis. Ascariasis is the most common soil-transmitted roundworm zoonotic infection.
En contraste, la encuesta parasitologica nacional del ano 2011 reporta una prevalencia general de 43,5%, con 43% de tricuriasis, 22% de ascariasis y 0,9% de infecciones por anquilostomideos (12).
Changes that take place in some biochemical parameters (ALT, LDH, total protein, albumin, cholesterol, triglyceride, glucose) in dogs with ascariasis. Sci Parasitol 16: 53-57.
macrostachyus has many uses including abdominal pain, abortifacient, amoebiasis, antidote for scorpion, and snake venom, anthrax, ascariasis, cancer, constipation, diarrhoea, dysentery, epilepsy, jaundice, leprosy, malaria, ringworm, sexually transmitted infections (STIs), skin diseases, stomach ache, tapeworms, typhoid, and wounds [17, 20, 26, 28-32, 34, 35, 38, 40, 44, 45, 49-52, 55-57, 60, 61, 63, 65, 67, 69, 72, 74, 82].
A number of neglected infectious diseases can also be cited, for example, malaria and diarrhoeal diseases, which alone cause about three million deaths in children every year, and tuberculosis, African trypanosomiasis, echinococcosis, schistosomiasis, leishmaniasis, ascariasis, rabies, cysticercosis, and dengue (Table 3).
Radiographic imaging of biliary ascariasis is usually pathognomonic.
[7] used of ethanolic extraction of Calligonum comosum and recorded that, it have highly efficacy in the treatment of Ascariasis. Nabila S.
B., Roberts, L., and Schiff, C., "Effects of Improved Water Supply and Sanitation on Ascariasis, Diarrhea, Dracunculiasis, Hookworm Infection, Schistosomiasis and Trachoma", Bull World Health Organ.
Wheeze is characteristic of parasites in a lung migration phase (eg, strongyloidiasis and ascariasis) or asthma.