Geohelmintiasis y nematodosis tisulares

Abstract

Infection by soil-transmitted helminths is one of the most prevalent parasitosis in the world. It predominates in tropical and subtropical countries and is associated with poor health care conditions and hygiene and sanitation deficiencies. The most frequent helminthiasis of Western countries is oxyuriasis (pinworms). It is generally asymptomatic or may cause anal pruritus having nighttime predominance. Eggs are detected by the adhesive tap or Graham method. Ascariasis is generally asymptomatic, although it may cause symptoms according to its location (lung, digestive track and gall bladder). Trichuriasis (whipworm) in children may cause non-specific abdominal discomfort and a dysenteriform picture, although it is generally asymptomatic. In the uncinariasis, the symptoms depend on its location (skin, lung and digestive). In strongyloidosis, the method of choice for its diagnosis is the copro-parasitological study and it is treated with ivermectin. Anisakiasis and trichinellosis are due to intake of raw meats and fish. Toxocariasis is generally asymptomatic or can cause clinical entities as the visceral larva migrans syndrome or ocular toxocariasis.