Strongyloidosis - helminthiasis (nematodes), parasitic disease, occurring with lesions of the gastrointestinal tract and allergic manifestations.
Pathogen - small threadlike roundworm (nematode)
(Ugritsa intestinal). Male 0.7 mm, female - 2.2 mm. Eggs are oval,
transparent, size 3-5x3 m. The life cycle takes place with a change
free-living and parasitic generations. During migration ugritsy
reach sexual maturity; female fertilization occurs in the lungs.
Mature individuals of parasites in the intestinal mucosa (usually
liberkyunovyh glands in the duodenum), and
massive infection may penetrate the mucosa
pyloric part of the stomach, small and large intestines, bile and
pancreatic ducts. Of the eggs laid in the intestines out
rhabditiform (non-invasive) larva to 300-400 microns allocated
with feces. In unfavorable conditions, after 1-4 days the larvae
develop in filariform (infected) form, and enabling - in
adults able to give rise to a generation as rhabditiform so
filariform and larvae.
widespread. Most cases are recorded in
tropical countries. In temperate countries, the greatest risk
are mines and tunnels with a warm and humid climate. A source
infection - a sick man. The main mode of transmission - fecal-oral
How is strongyloidosis
characteristic of the early stages of allergic skin and lungs, on
later dominated by lesions of the gastrointestinal tract. For minor infections observed asymptomatic (30% of all patients). Migrating larvae
the body causes fever, rash papular (small
flat papules, nodules), itching, hives and swelling.
Intestinal stage is accompanied by abdominal pain
varying intensity (in severe cases - Acute pain with the rise
body temperature, anemia, cachexia (emaciation of the body)), nausea, vomiting, diarrhea with
mucus. In severe cases, a chair - a putrid odor, contains blood,
mucus and undigested food residue. Pulmonary lesions resemble
those in ascariasis and hookworm.
At risk -
Patients with compromised immune systems. Characterized by heavy
enterocolitis, liver, heart, lungs and central nervous system. Symptoms:
severe abdominal pain, diffuse pulmonary infiltrates,
ileus, meningitis, shock, sepsis.
Methods of research - in the early phase of the migration detect larval parasites in sputum.
intestinal helminth larvae detected in the content and
freshly feces (after taking laxatives) by Berman.
strongyloidiasis is suspected in the case of the first negative result
the study was repeated 3-5 times at weekly intervals.
Treatment and prevention of strongyloidiasis
- Mebendazole 200 mg (children 100mg) p 2 / day for 3 days.
- Compliance with the rules of personal hygiene
- Decontamination of the mines and land
- Sanitary and educational work among the population in endemic areas
- One month after the treatment is carried out control scatological study.