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PubMed1993

[Comparison of Enterobius vermicularis infection among preschool children in Ta-Liao District of Kaohsiung County with that in Kaohsiung City].

To compare the rate of E. vermicularis infection among preschool children in Ta-Liao District of Kaohsiung County, with that in Kaohsiung City, a total of 532 preschool children from 7 kindergartens in Ta-Liao District, Kaohsiung County and 544 preschool children from Kaohsiung City kindergartens were randomly collected. The preschool children were examined for E. vermicularis infection with a scotch tape perianal swab technique (S.T.P.S.T.). After examination, the preschool childrens' parents were also interviewed. The interview included the following factors: personal data of the preschool children (age, sex and birthplace); the size of the living quarters (measured in "Ping") and the number of rooms in the living quarters; the play area floor material (e.g. carpet, wood, tile, etc.); the total number of family members; the distribution of family members in bedrooms; the frequency of finger-sucking and the frequency of hand-washing before eating meals and after using toilets; the preschool childrens' primary caregiver; the occupations of both parents; and the means and times of bathing. The obtained data were analyzed and E. vermicularis infection among the preschool children in Ta-Liao District and Kaohsiung City were compared using the Mantel-Haenszel statistical program in Statistical Analysis System (S.A.S) software. The present results indicated that the rate of E. vermicularis infection among preschool children was higher in Ta-Liao District than in Kaohsiung City.

Child↗
PubMed1996

[The role of Enterobius vermicularis in etiopathogenesis of appendicitis].

The authors present 14 cases of enterobiasis of appendix observed between 1991-94, on a total of 1093 appendectomies. The presence of the parasite was associated, in the majority of cases, to a chronic appendicitis. The symptomatology imitates an attack of acute appendicitis, but the true nature of the disease is diagnosed only through a histological examination. There is probably an etiopathogenic relationship between. E. vermicularis and chronic appendicitis, whereas the relationship between the parasite and acute appendicitis is rare and very disputed.

Adolescent↗
PubMedDate not supplied

[Various epidemiological aspects of Enterobius vermicularis infection inpatients served at public outpatient clinics and hospitals from the northern section of Santiago, Chile, 1995].

During 1995, we examined 2,666 Graham's tests (five perianal swabs with adhesive cellulose tape) prescribed to ambulatory patients attended in 14 public outpatient clinics and four hospitals from the north section of Santiago. The infection rates found by age groups were the following: 6.1% in infants (< 2 years old), 20.9% in pre-schoolchildren (2 < 6 years old), 35.2% in elementary schoolchildren (6 < 15 years old) and 15.2% in adults (> 15 years old). Similar percentages of E. vermicularis infections were observed in females and males patients. Frequency of infection in each month of the year varied between 17.4 and 26.8%, with no seasonal variation. This study and previous surveys are stressing that E. vermicularis is the most frequent helminthic agent found in Chile, specially in elementary school children.

Adolescent↗
PubMed2004

Clinical manifestations of appendiceal pinworms in children: an institutional experience and a review of the literature.

The association of Enterobius vermicularis infestation with acute appendicitis varies from 0.2-41.8% worldwide. Our purpose was to determine the significance of Enterobius-associated appendicitis by retrospective review of appendectomies performed during a 5-year period at a major children's hospital. The Surgical Pathology database at Children's Hospital, Columbus, Ohio, was reviewed for appendiceal specimens found to have Enterobius infestation. Corresponding patient charts were evaluated for age, gender, presenting symptoms, laboratory data, operative findings, and clinical course. Of the 1,549 appendectomies performed from January 1998 through January 2003, 21 specimens (1.4%) were found to contain Enterobius vermicularis. Fifteen of the appendectomies were performed for symptoms of acute appendicitis; the remaining six were incidental appendectomies in conjunction with other operations. The mean age was 8.9 years. Ten patients were male; 11 were female. Of the 15 symptomatic children, nine presented with fever >99.0 degrees F, and 11 had a WBC count >10,000. Intra-operative appearance of the appendix ranged from normal to perforation. Pathologic evaluation showed neutrophil or eosinophil infiltration in 15 of the 21 specimens. Enterobius infestation is an uncommon cause of acute appendicitis in children in the United States. It may be associated with acute appendicitis, "chronic appendicitis," ruptured appendicitis, or with no significant clinical symptoms.

Adolescent↗
PubMed1991

Enterobiasis: a histopathological study of 259 patients.

Enterobius worms or their eggs, or both, are present in preserved tissue sections or tissue specimens of 259 patients whose medical records are on file at the Armed Forces Institute of Pathology, Washington D.C., U.S.A. The most common site of infection (86.5%) was found to be the lumen of the appendix, where the worms provoke no reaction. Of the 259 patients 11 (4.2%) had worms and/or eggs in granulomas of the abdominal and pelvic peritoneum, and an equal number had granulomas on the peritoneum of the salphinx or on the surface of the ovary. There were also ectopic worms and/or eggs in granulomas on the peritoneum of the small and large intestines (2.7%). These Enterobius granulomas form around degenerating adult worms, around discrete eggs, around clusters of eggs, and, we believe, also around the tracks of migrating worms. Three patients (1.2%) had worms in perianal abscesses. A necrotic granuloma, removed from the lung of one patient, surrounded a degenerating adult worm. This suggests that the worm, carried to the lung as an embolus, impacted in a pulmonary arteriole. A stool specimen of one patient contains eggs of Enterobius, and that of another patient contains an adult Enterobius. This is the largest recorded histopathological study of enterobiasis in man.

Adolescent↗
PubMed2003

Electron miscroscopy and histochemical studies on four Egyptian helminthes eggs of medical importance.

By SEM the Fasciola gigantica egg is ovoid with a small knob like operculum, while the egg of Heterophyes heterophytes is broad oval with the operculum more tapering. The egg shell of fertilized Ascaris lumbricoides has interconnected ridges and peak-like projections, while the egg of Enterobius vermicularis is flattened with a thicker margin at the curved side. By TEM, Fasciola egg shell consists of fine reticulum fibrils of three layers. The outer lipoprotein of perivitelline membrane beneath which 2 membranes separated by inclusions, middle of protein globules and inner lipoprotein layer with minute electron-dense granules of melanin or polymer origin, in some parts of the shell giving the egg its brown coloration. The Heterophyes egg shell is more or less similar to that of Fasciola but lacking the minute electron-dense granules. The egg shell of Ascaris has outer ulterine layer with three consecutive layers, basal lipoprotein layer and the inner lipid or ascaroside layer which is the most resistant layer. The Enterobius egg shell consists of five layers, external uterine, internal uterine, vitelline, chitinous and lipid layer. Histochemically, Fasciola egg shell consists of nine amino-acids, and that of Heterophyes consists of ten amino acids. In Ascaris, the lipid layer characteristically consists 25% protein and 75% lipid. The histochemical examination of Enterobius as a detailed example, showed different degrees of reactions with mercuric bromophenol blue, diazotization coupling, Sakaguchi reaction, Sudan black and Mallory's triple stain. Temperature showed marked effect on eggs survival. Eggs of Fasciola and Heterophyes withstand more low temperatures but those of Ascaris and Enterobius withstand more high ones. There are marked correlations between the egg shell constitution, histochemical compositions on one hand and water permeability and egg dryness on the other hand. The results were photographed and discussed.

Animals↗
PubMed1992

Helminth eggs in the sludge from three sewage treatment plants in Czechoslovakia.

Developmental stages of 8 species of parasitic helminths were found during examination of sludge from 3 sewage treatment plants in Central Bohemia, Czechoslovakia. The eggs were comprised from Ascaris sp., Toxocara sp., Toxascaris leonina, Parascaris equorum, Enterobius vermicularis, Trichuris sp., Capillaria sp. and Hymenolepis spp. The quantity of these organisms in 100 g of dried sludge ranged between 24-105 eggs of Ascaris sp., 12-47 eggs of Toxocara sp., 0-8 eggs of Toxascaris leonina, 0-1 egg of Parascaris equorum, 2-33 eggs of Trichuris sp., 0-12 eggs of Capillaria sp., 0-46 eggs of Enterobius vermicularis and 0-49 eggs of Hymenolepis spp. Some eggs of Hymenolepis spp. and Enterobius vermicularis were structurally damaged, while some eggs of Ascaris sp. and Enterobius vermicularis contained developed larvae.

Animals↗
PubMed2002

Vitamin B12 and folic acid in children with intestinal parasitic infection.

OBJECTIVE: To determine prospectively plasma levels of vitamin B12 and folic acid in children with intestinal parasitic infection before and three months after antiparasitic treatment. METHODS: 3036 stool samples were collected from 1959 children and 939 cello-tape anal swabs were taken from 688 children for intestinal parasite investigation. Of these, 155 children were identified as having a parasitic infection; however, only 86 were followed up during this study: 26 children with Giardia lamblia infection were treated with tinidazole and metronidazole, pyrantel pamoate was used in the treatment of 40 children with Enterobius vermicularis, and 20 patients infected with Cryptosporidium parvum received only symptomatic treatment. Vitamin B12 and folic acid levels were measured by radioimmunoassay, before and three months after the completion of treatment. RESULTS: Vitamin B12 serum concentrations did not show any significant differences among the three groups. There was a significant increase in vitamin B12 serum concentrations after three months of anti-parasitic treatment (630.57+/-200.97 vs. 667.97+/-181.55 pg/dL, p = 0.002, n = 86). Paired analysis in each group showed only significant increases for vitamin B12 in the Giardia lamblia group and in the Enterobius vermicularis group. No statistically significant differences were found for folic acid serum concentrations before and three months after treatment. CONCLUSIONS: Patients with symptomatic infection by Giardia lamblia and Enterobius vermicularis have lower vitamin B12 levels than asymptomatic patients. This could reflect a more affected intestinal mucous. These results could present the opportunity to treat these parasitic infections and to use vitamin B12 supplementation in symptomatic children with Giardia lamblia and Enterobius vermicularis infection.

Adolescent↗
PubMed2006

[Effect of a novel drug--enteric coated tribendimidine in the treatment of intestinal nematode infections].

OBJECTIVE: To study the therapeutic effect and possible adverse effects of tribendimidine enteric coated tablets in the treatment of infections due to hookworms, Ascaris lumbricoides, Trichuris trichiura, Enterobius vermicularis. METHODS: According to the standard clinical trial design and protocol, persons infected with hookworms, Ascaris lumbricoides, Trichuris trichiura, or Enterobius vermicularis respectively, were treated with tribendimidine enteric coated tablets in four counties of Guangdong and Jiangsu Provinces, albendazole was used as control. RESULTS: For hookworm infection, the curative rate (eggs negative in the faeces) were 89.5% (85/95) and 70.6% (60/85) with tribendimidine (400 mg) and albendazole(400 mg) respectively; for Ascaris infection, 97.4% (114/117) and 98.9% (91/92) with tribendimidine(300 mg) and albendazole(400 mg) respectively; for Trichuris infection, 33.3% (25/75) and 56.1% (23/41) with tribendimidine(400 mg/day for 3 days) and albendazole(400 mg/day for 3 days) respectively; for Enterobius infection in children, 74.1% (60/81) and 93.0% (40/43) with tribendimidine(200 mg) and albendazole(200 mg) respectively. No considerable side effect was found. CONCLUSION: Tribendimidine is highly active in the treatment of hookworm, Ascaris lumbricoides infections, free of major adverse effect and easy to administer. It is more effective than albendazole for the infection of Necator americanus.

Adolescent↗
PubMed2003

[Clinical observation on the efficacy of ivermectin in the treatment of intestinal nematode infections].

OBJECTIVE: To observe the efficacy and side effects of ivermectin in the treatment of intestinal nematode infections. METHODS: A single dose of ivermectin 0.1, 0.2, 0.2 and 0.2 mg/kg was orally administered to cases with infection of Ascaris, hookworm, Trichuris and Enterobius respectively. A single dose of albendazole 400 mg was used as control. RESULTS: The egg negative conversion rates of ivermectin and albendazole were both 100% (34/34) for Ascaris infection, 17.6% (6/34) and 76.5% (26/34) respectively for hookworm infection, 67.6% (23/34) and 47.1% (16/34) respectively for Trichuris infection, 58.8% (20/34) and 100% (34/34) respectively for Enterobius infection. The worm discharge reached a peak in 1-2 days after treatment. The side effect of ivermectin was mild and transient showing no adverse effect on blood picture, liver function, renal function or ECG. CONCLUSION: Ivermectin shows similar effect on Ascaris with albendazole, better effect on Trichuris and poorer effect on hookworm and Enterobius than albendazole.

Adolescent↗
PubMed1984

The helminth fauna of the digestive tracts of chacma baboons, Papio ursinus, from different localities in the Transvaal.

All of the 111 baboons examined from the Loskop Dam, Suikerbosrand and Scrutton Nature Reserves and the Sabie-Tweefontein Forest Reserve were infested with helminths of the digestive tract. The helminths recovered were Bertiella studeri, Enterobius vermicularis, Oesophagostomum bifurcum, Physaloptera caucasica, Streptopharagus pigmentatus, Strongyloides fülleborni, Trichostrongylus falculatus, Trichuris trichiura and females of Trichuris which possibly belong to a new species. Most baboons harboured 3, and some as many as 6, species of helminths. Burdens of the various helminths varied greatly, even among baboons from the same locality, age group and sex. All helminths found in the present study can occur in very young animals. Worm burdens generally increased as the host aged, with a subsequent decrease among adult baboons for Enterobius vermicularis, Strongyloides fülleborni and Trichostrongylus falculatus. Heavier worm burdens were found in the wet season for Bertiella studeri and Oesophagostomum bifurcum, whereas Trichostrongylus falculatus occurred in greater numbers during the dry season. No significant differences between worm burdens in male and female baboons were found, but Physaloptera caucasica was more prevalent in males. Trichostrongylus falculatus and Enterobius vermicularis are new records for the chacma baboon.

Age Factors↗
PubMed1994

[Studies on the efficacy of albendazole candy for treatment of intestinal nematode infections].

A single dose of albendazole (candy) 100 mg and 100 mg qd for two days was given respectively to 135 and 321 children who were infected with Enterobius vermicularis. All cases were cured 3wk later according to perianal tape examination. The same drug of 150 mg qd and 200 mg qd for two days was administered respectively to residents with single or multi-infections of Ascaris, hookworm and Trichuris; the egg negative conversion rates of the two dosages were revealed to be 99.4% (466/469) and 99.8% (487/488) for Ascaris infection, 96.8% (91/94) and 94.3% (99/105) for hookworm infection, and 53.4% (228/427) and 76.3% (370/486) for Trichuris infection. The maximal numbers of worm expelled were 100 on d2-3, 88 on d3-5 and 588 on d2-4 for Enterobius, Ascaris and hookworm, respectively; whereas the discharged Trichuris were scarce, merely 4.3 in average. The results exhibited promising efficacy of the drug on Enterobius, Ascaris and hookworm infections, but not so on trichuriasis.

Albendazole↗
PubMed1999

Relationship between pinworm and urinary tract infections in young girls.

Urinary tract infection is particularly common in young girls and Enterobius vermicularis (pinworm) is one of the most prevalent worms found in children worldwide. Young girls, with or without urinary tract infection, were examined for pinworms in order to explore a possible relationship between these two problems. Of the 55 young girls with urinary tract infection, 20 (36.4%) had pinworm eggs in the perianal and/or perineal region monitored using the cellophane tape method, while 9 (16.4%) of 55 young girls who had never previously had a urinary tract infection were found to have Enterobius eggs in at least one of the cellophane tape tests, and the difference was found to be significant (p<0.05). These results suggested that urinary tract infections may be related to pinworms. When a urinary tract infection is diagnosed in young girls, cellulose tape should be applied to both the perianal and the perineal regions on at least three consecutive occasions.

Adolescent↗