Inpatient & Outpatient Medications
- An antihelminthic medication should be prescribed to patients with enterobiasis .
- Application of an antipruritic ointment or albendazole may help control scratching.[5]
Deterrence/Prevention
- Thorough handwashing can deter transmission.
Complications
- Beware of skin infection from vigorous scratching to relieve pruritus.
- Pinworms have been associated with appendicitis.[7, 8] However, small and large intestine ulcerations, perianal abscesses, intestinal pain, transient synovitis, or enuresis is believed to be coincidental and not causal.[9]
- If a patient with enterobiasis is refractory to treatment, consider the possibility of an infestation with Dipylidium caninum, which is a common tapeworm that infects domestic cats and dogs.[10]
Prognosis
- Prognosis is excellent, but reinfestation is common.
Patient Education
- Inform families that dogs and cats do not harbor E vermicularis.
- Inform families that infestation may occur in spite of proper child and household hygiene.
- Counsel families to avoid overreaction through aggressive sanitary measures. Because infectious eggs may be in bedclothes and dust and remain infectious for 20 days, wet-mopping floors or vacuuming carpets and washing bedclothes are prudent precautions.
- Reassuring families that pinworms are not a sexually transmitted disease and are not evidence of child abuse may be helpful.
- Keeping the patient's fingernails trimmed to prevent excoriations is helpful.
- Avoid scratching the area and nail biting because this is a cause of autoinfection.
- Encourage the patient to bathe in the morning, this significantly reduces the number of eggs.
- Children may return to school once they have received a dose of medication, bathed, and have nails trimmed.
- Bed linens should be washed in hot, soapy water.
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Ramezani MA, Dehghani MR. Relationship between Enterobius vermicularis and the incidence of acute appendicitis. Southeast Asian J Trop Med Public Health. Jan 2007;38(1):20-3. [Medline].
Sodergren MH, Jethwa P, Wilkinson S, Kerwat R. Presenting features of Enterobius vermicularis in the vermiform appendix. Scand J Gastroenterol. 2009;44(4):457-61. [Medline].
Arca MJ, Gates RL, Groner JI, Hammond S, Caniano DA. Clinical manifestations of appendiceal pinworms in children: an institutional experience and a review of the literature. Pediatr Surg Int. May 2004;20(5):372-5. [Medline].
Samkari A, Kiska DL, Riddell SW, et al. Dipylidium caninum mimicking recurrent enterobius vermicularis (pinworm) infection. Clin Pediatr (Phila). May 2008;47(4):397-9. [Medline].
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Kucik CJ, MartinGL, Sortor BV. Common Intestinal Parasites. Am Fam Physician. Mar 2004;69(5):11621-8.
Lormans JA, Wesel AJ, Vanprus OF. Mebendazole in enterobiasis. A clinical trial in mental retardates. Chemotherapy. 1975;21:255.
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Song HJ, Cho CH, Kim JS, et al. Prevalence and risk factors for enterobiasis among preschool children in a metropolitan city in Korea. Parasitol Res. Sep 2003;91(1):46-50. [Medline].
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