Asacriasis + enterobiasis Flashcards
ascaris lives
SI - mainly jejanum
moa
soil transmitted disease contamination with eggs
infective form
eggs (rhabditiform larvae)
loeffler syndrome associated with
ascaris + strongyloids stercoralise
loffler syndrome
eosinophilia
x ray - migrating infiltrates
ascaris pneumonia - produce sputum with crystals charcot leyden crytals
wheezing, fever uritcaria
whats interesting about ascaris
worms can randomly crawl out the nose, mouth rectum
lifecycle of AL
monoxenous
diagnosis of AL
bile stained egg
stool- eggs
x ray - loffler
larvae can be found in gastric washings or sputum
which is the lagets helminth
ascaris
IP for ascaris
3 months
treatment of AL
AlBENDAZOLE/MEBANDAZOLE
iP enterobiasis
1 month
other name for AL
ROUNDWORM
other name for enterobius
pin worm (posterior end of female is like a pin where she lays eggs)
diagnosis of enterobiasis
excoriation marks in perianal area
scotch tape method
better to take samples at night or early morning before bathing
worms can sometimes be seen in poo but eggs not really usefull
target for enterobiasis
children
infective form enterobiasis
eggs (but not infective right away )
enterobiasis worm lives
cecum + appendix
treatment of enterobiasis
ALBENDAZOLE/MEBANDAZOLE
how to kids get infected with enterobiasis
autoinfection- eggs under the nails in kids
retroinfection : fresh eggs laid go back inside
symptoms of enterobiasis
nocturnal enuresis
females: mucoid discharges, cervicitis, uti
teeth grinding
pathogenesis of AL
eggs ingested, hatch in duodenum release rhabditiform larvae - portal system - heart - lungs - crawl up to be swallowed, develop into adults in SI
symptoms of AL
mostly due to the allergy not so much the worms themselves but can cause
mechanical: obstruction
ectopic ascariasis
nutritional effects -
which worms penetrate human skin
Ascaris lumbricoides Trichuris trichiura, Ancylostoma duodenale and Necator americanus).
different ways to catch ascaris lumbricoids
when the soil is heavily contaminated the eggs can be airborne and inhaled, where they get swallowd
commonly fecal oral through vegetables use to fertiliser
children playing in mud through dirty fingers
what are the symptoms of ascariasis caused by
the larvae or adults
adults (migrating) causing loefllers , the effect of the larvae is more to do with allergic reaction and not the actual larvae themselves - so usually becomes apparent when heavy infection
what’s unique about vermicular s
unlike the usual situation where helminth infections are common in the poor people of the tropic its quite the opposite its more comonin more affluent nations and colder countries also eosohagus has a double bulb structure which is unique to this worm
