Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0017536 (giardiasis)
 1,714 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Two patients presented with similar peripheral neuropathic symptoms. Muscle denervation was shown by electromyography and muscle biopsy. Motor and sensory nerve conduction studies were normal. Both patients had intestinal giardiasis: 1 had asymptomatic steatorrhoea, and the other had diarrhoea and abdominal pain. Treatment with metronidazole abolished the gastrointestinal symptoms. After a delay of several months the neurological symptoms also gradually improved. No other cause of peripheral neuropathy was apparent on investigation, and the relationship between the intestinal giardiasis and the peripheral neuropathy is discussed.
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PMID:Intestinal giardiasis, steatorrhoea and peripheral nerve dysfunction. 21 1

The therapeutic effects of quinacrine (Atabrine) and metronidazole (Flagyl) were compared in a 3-year prospective study of 160 infants and children (86 boys and 74 girls ranging in age from 4.5 months to 13 years) with giardiasis. The most common symptom was recurrent abdominal pain. In each study group stool examinations were done 5 days, 1 month, and 6 months after treatment. There were no treatment failures with metronidazole, whereas four of those treated with quinacrine had positive stools 5 days after treatment, indicating possible failure. There were no recurrences at 1 month; after 6 months, however, Giardia infection was found in 13% of both treatment groups. These recurrences were seen mainly in children from families with other infected members. Considering the low failure rate, the minimal side effects, and the relatively more tolerable flavor, metronidazole seems to be preferrable in the treatment of giardiasis. A dosage of 15-25 mg/kg a day for 5 days is recommended.
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PMID:Giardiasis in infancy and childhood: a prospective study of 160 cases with comparison of quinacrine (Atabrine) and metronidazole (Flagyl). 43 10

Giardia lamblia has a cosmopolitan distribution. The organism exists in two stages--the trophozoite and the cystic stage. Infected children may have acute or chronic diarrhea, crampy abdominal pain, anorexia, malasorption and poor weight gain and may be misdiagnosed as celiac disease. Infection may be selflimited or chronic even over years. Diagnosis is usually made by finding the characteristic cyst in stool specimens or by duodenal aspiration. Histological sections and impression smears (AMENT) of intestinal mucosa biopsies have been proved to be the most reliable method for detecting giardiasis. Evaluation of impression smears for parasites is easier and quicker than examining serial sections of biopsies. Out of 175 selected patients with intestinal complaints which were undergone small intestinal biopsy 11 were infected with giardia lamblia (6.2%). All infected children were symptomatic, malabsorption could be demonstrated in 5/8, lactase levels were reduced in most children. Examination of duodenal aspirates, stool specimens and histological sections (routine histology) alone would not have been diagnostic in every case. Evaluation of impression smears proved to be a reliable method in detecting giardia lamblia infection and is recommended whenever an intestinal biopsy is performed.
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PMID:[The value of the "impression smear" in detecting giardia lamblia infection (author's transl)]. 64 94

Giardia lamblia has been considered a facultative pathogenic organism. The prevalence of this organism was found in 18.58% and 18.18% of children with and without associated symptoms. The prevalence is higher than those previous studies from Southeast Asia. Most children are commonly infected after 1 year of age. Giardiasis should be suspected in any child with unexplained chronic diarrhoea, abdominal pain and failure to gain weight. The diagnosis is important because the disease is curable after appropriate treatment.
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PMID:Prevalence of Giardia lamblia in children attending an out-patient department of Siriraj Hospital. 70 16

The prevalence of giardiasis was assessed in 1000 consecutive adult patients undergoing upper-gastrointestinal endoscopy for the usually accepted indications. Patients with upper-gastrointestinal bleeding were excluded. The diagnosis was established by examination of duodenal aspirate and duodenal mucosal impression smears. In 21 patients (2.1%) trophozoites were detected both in the duodenal juice and stained mucosal impression smears. All were treated with metronidazole or tinidazole. In 14 of 16 patients who had subsequent duodenal intubation, eradication of the parasite was confirmed. In five patients previously existent abdominal pain disappeared with clearing of the parasite, and no other cause for their abdominal pain was discovered. A search for Giardia lamblia infestation may be a worthwhile additional procedure at the time of endoscopy when no other cause for abdominal pain is found.
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PMID:Prevalence of Giardiasis: a study at upper-gastrointestinal endoscopy. 71 53

Giardiasis is still regularly encountered in the United States, both as endemic cases from the local community as well as in patients returning from travel abroad. Giardiasis should be suspected in any child with steatorrhea, unexplained chronic diarrhea (especially if associated with growth failure), weight loss, or abdominal pain and bloating. Duodenal aspiration or small intestinal biopsy may be necessary to make a diagnosis because Giardia lamblia are not found by stool examination in 50% of symptomatic individuals. A diagnosis of giardiasis is important because the disease is curable.
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PMID:Giardiasis in childhood. 119 Jan 62

During the period from March through November 1989, 70 children who were attended at the Pediatric Department at Central Hospital in Valencia, were enrolled in the study, it was thought that Giardia lamblia infection might be present. Giardia L. were identified using two different diagnostic procedures: from stool samples and duodenal aspirates for cysts or trophozoites examination. These children were treated with Metronidazole three dosage of 15, 30 and 50 mg/kg per day for a ten day period. Our study showed predominant giardiasis in children with ages ranging from 2 to 6 years old (60%) with a relationship between female and male sex 1.05:1. In this series, 72.8% of patients presented normal nutrition, and 55.7% of them were from the suburban area. The most frequent symptoms were abdominal pain, diarrhea, vomiting, abdominal distention, constipation and flatulence. The infants prevalent symptom was diarrhea (83.3%) and the older children and school children prevalent symptom was abdominal pain with 78.5 and 100% respectively. In this study, stool examination was positive in 97.1% of the children and duodenal aspirate was positive in all 70 children (100%); the first procedure showed predominant Giardia cysts (88.2%) and the second one showed predominant trophozoites (47.1%). All 70 patients (100%) were cured with Metronidazole to different dosage. Side effects were seen with only the maxim dose, such as nausea 40%, headache 10% and appearance of yeast into 50% of duodenal aspirate.
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PMID:[Giardia lamblia: comparison of two diagnostic methods and evaluation of response to treatment with metronidazole]. 184 30

In a retrospective study performed on 125 patients with histologically diagnosed giardiasis, it is shown that this disease can lead to a variegated picture involving numerous gastroenterological symptoms. The main symptoms noted were epigastralgia (41%), diarrhoea (32%), nausea and vomiting (23%), and loss of weight (20%). The material for histological diagnosis was obtained in hospitals in 49% of the cases, in the doctor's office in 32%, and in two gastroenterological rehabilitation centres in 19%. The average duration of symptoms before establishment of the diagnosis was 2.01 years (range: 1 week to 30 years). In only 8% of the cases was the disease preceded by a visit to an endemic area. Treatment with nitroamidazole preparations completely relieved symptoms in 78% of the patients and remained unsuccessful in 4%; for the remaining 18% of the patients, no follow-up data were available. On the basis of these results, it is recommended that in patients with upper abdominal pain, diarrhoea, loss of weight, meteorism, flatulence, nausea and vomiting, the possibility of giardiasis should be considered, and that during endoscopy, two or three forceps biopsies should be obtained from macroscopically normally-appearing mucosa of the descending part of the duodenum to enable a histological search for Giardia lamblia.
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PMID:Giardiasis--a simple diagnosis that is often delayed. 195 49

Much difficulties are often encountered in finding the underlying cause of recurrent abdominal pain. Clinical features may vary from one patient to the other and occasionally from one episode to the next even in the same child. The recent development of fibre optic endoscopy may well prove to have a useful diagnostic technique, particularly in those children in whom other investigations are inconclusive. The result of endoscopic examinations in children with recurrent abdominal pain comprising of 62 children aged between 3-13 years were as follows: erosion in 7 children, oesophagitis in 4 children, duodenitis in 3 children, spasm of the pylorus in 2 children, and normal findings were found in 30 children. Of the 30 patients with "normal" endoscopic findings, 7 had psychosomatic problems, 4 had allergy, 4 had urinary tract infection, 2 showed giardiasis, one had epilepsy, 1 was treated as pulmonary tuberculosis, where as in 11 patients organic as well as nonorganic abnormalities could not be found. There seem to be of no significant correlation between the endoscopic and upper gastrointestinal series findings. Endoscopy seem to be of a safe and reliable tool in the diagnosis of a number of organic intestinal lesions otherwise not detected by ordinary investigations.
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PMID:Endoscopic examinations in children with recurrent abdominal pain. 248 37

A total of 1,167 stool specimens collected from 0.6-6 years old patients attending King Abdel Aziz University Hospital (KAUH) in Riyadh, were examined for intestinal parasites. Of these 243 (20.8%) were positive. Giardia lamblia (13.5) and Enterobius vermicularis (4.2%), were the commonest parasites found. Other parasites present include Ascaris lumbricoides, Entamoeba histolytica and Hymenolepis nana. Abdominal pain (38.6%) and diarrhoea (27.6%) were the most common causes of referral presented among both males and females examined groups. Out of 211 patients positive for different parasites and showing different causes of referral, 45.5% were accompanied with abdominal pain and 22.3% having pruritus ani, while the percentage of patients having diarrhoea and positive for different parasites (9.5%) are less. It has been concluded that diarrhoea is not a major sign of parasitic infestation in 0.6-6 years old age group. Other causes of referral include, loss of appetite, underweight and failure to thrive which are mainly associated with Giardia lamblia infection.
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PMID:Pattern of intestinal parasitic infection in preschool children in Riyadh, Saudi Arabia. 280 81


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