small instestine nematodes
TRANSCRIPT
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We are helminths. Our body is covered with tough
cuticle and also it is unsegmented.We are long, cylindrical in shape.We have a body cavity which has
digestive and genital system but our nervous and excretory systems are
dull.We have girlfriend (or boyfriend) and
we stay together.
Who are we?????????
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NEMATODES •
by Surjeet Acharya
VMC
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Classification
SYSTEMIC CLASSIFICATION
HABITAT OF ADULT WORM
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SYSTEMIC CLASSIFICATIONSUBCLASS ORDER SUPERFAMILY GENUS SPECIESAphasmidia Enoplida Trichinelloidea Trichinella
TrichurisCapillaria
T.spiralisT.trichiuriaC.philippiensisC.hepaticaC.aerophilia
Phasmidia Rhabditida
OxyuridaAscaridia
Spirurida
RhabditoideaStrongyloidea
TrichostrongyliodeaMetastrongyloidea
OxyuroideaAscaridoidea
Spirudoidea
StrongyloidesAncyclostomaNecatorOesophaostomumTernidensTrichostrongylusParastrongylus
EnterobiusAscarisToxocaraGnathostomaAnisakis
S.stercoralisA.duodenaleN.americanusO.apiostomumT.deminutusT.colubriformisP.cantonensisP.costaricensisE.vermicularisA.lumbricoideT.canis & catiiG.spinigerumA.Simplex
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HABITAT
INTESTINAL SOMATICSMALL INTESTINE LYMPHATIC MESENTRY
A.lumbricoides W.bancrofti M.perstansA.duodenale B.malayi M.ozarrdi
N.americanus SUBCUTANEOUSCONJUCTIVAS.stercoralis Loa loa Loa loaT.spiralis O.volvulusC.philippinensis D.medinensis
CAECUM AND APPENDIXLUNGSE.vermicularis S.stercoralisT.trichuria
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Ancyclostoma duodenaleNecator americanus
HOOKWORM
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MANAGEMENT
Albendazole 400mg single doseMebendazole 100mg twice daily x 3 days
Oral iron supplementsBlood transfusion (rare)
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MANAGEMENT
Ivermectin 200micro/kg x 2 daysIvermectin 200micro/kg x 5-7 daysAlbendazole 15mg/kg twice daily x 3 days
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Ascaris lumbricoides
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MANAGEMENT
Albendazole 400mgPyrantel pamoate 11mg/kg (max. 1 g)Ivermectin 200micro/kgMebendazole 100mg twice daily x 3 days
Nasogastric suction, piperazine, I.V fluidsAdvice!
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Enterobius vermicularis
THREAD/PIN/SEAT WORM
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CLINICAL FEATURES
ITCHING IN PERIANAL AREA (esp. at NIGHT)
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MANAGEMENT
Mebendazole 100mgAlbendazole 400mg repeatedPiperazine 1g 2 weeksPyratel pamoate 11mg/kg
Personal hygiene!!
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MANAGEMENT
Albendazole 400mg x 3 days (5-7days)Mebendazole 100mg twice daily x 3 days (same)
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INTESTINAL NEMATODES
Larvae in stoolS.stercoralis
Eggs in stoolEggs in perianal
skin
ColourlessE.vermicularis
ColourlessHookworms
E.vermicularis
ColouredA.lumbricoides
T.trichuria
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Cutaneous Larva Migrans
By non-human hookworms (A.caninum, A.braziliense, Uncinaria stenocephalia, Bunostomum phlebotomum)
Cannot penetrate beyond S.germinatum!!!
Wander in tortous tiunnel between S.corneum and S.germinatum.
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THANK
YOU