Intestinal and Tissue Nematodes - TRICHINELLA SPIRALIS Flashcards
Tissue nematode
PIGS - intermediate host
the ONLY INTRACELLULAR helminths
Trichinella spiralis
Transmission of Trichinella spiralis
digesting undercooked pork
Diagnostic test for Trichinella spiralis
MUSCLE BIOPSY: most definitive; LARVAE W/N STRIATED MUSCLE
elevated CPKs
xenodiagnosis
Bentonite Flocculation Test
Pathogenesis of Trichinella spiralis
INTESTINAL STAGE: liberated from pork by gastric juices
MUSCLE STAGE: disseminated HEMATOGENOUSLY to STRIATED SKELETAL MUSCLE – encysted w/n a host derived cell (NURSE CELL)
MILD DISEASE
fever, muscle pain (MYALGIA)
PERIORBITAL EDEMA
eosinophilia
SUBCONJUNCTIVAL HEMORRHAGE - hemorrhagic phemomena
SEVERE DISEASE
myocarditis
encephalitis
pneumonia
RESPIRATORY MYOSITIS
Treatment for trichinosis
Thiabendazole
EARLY INFECTION
*Mebendazole
SEVERE INFECTION
*steroids + Albendazole
NO EFFECTIVE TREATMENT