Ultrasonographical aspects of urinary schistosomiasis: Assessment of morphological lesions in the upper and lower urinary tract

Dittrich, Matthias; Doehring, E

doi:10.1007/bf02456292

Cited by 24 publications

(10 citation statements)

References 29 publications

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“…As reported by many investigators, children had higher rates of infection, heavy infection, and pathologic lesions than adults. 5,8,9 One third of the 7-14-year-old children had ureteric dilatation and about half of them had bladder lesions; similar figures were reported from Tanzania. 10 Bladder lesions included mostly bladder polyps, bladder wall thickening, and irregularities.…”

Section: Discussionmentioning

confidence: 52%

The public health significance of urinary schistosomiasis as a cause of morbidity in two districts in Mali.

Traoré

Traoré²,

Kardorff³

et al. 1998

The American Journal of Tropical Medicine and Hygiene

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Schistosoma haematobium-related morbidity was studied in the perennial irrigation area of Office du Niger and the small reservoirs area of Plateau Dogon in Mali. Questionnaire, clinical, parasitologic, and ultrasound examination data were collected from 1,041 individuals at the baseline survey in 1991; 705 were reexamined one year after treatment. At baseline, the overall prevalence of S. haematobium infection was 55.2%; half of those infected had no clinical symptoms and 30% had pathologic lesions. Both infection and morbidity were more frequent in children than in adults, with a peak prevalence at 7-14 years of age. The rates of lesions were more than twice as high in those heavily infected as in lightly infected individuals. Reagent strip testing for microhematuria was more sensitive in detecting individuals with pathologic lesions than in detecting individuals with infection. One year after treatment with praziquantel, more than 80% of the urinary tract lesions had cleared. It is concluded that S. haematobium-related morbidity is frequent in Mali, but passive case detection for treatment would not cover a great deal of early stages of the disease; active intervention using reagent strip testing for microhematuria at the most peripheral levels would be an efficient system for morbidity control and monitoring of control operations.

show abstract

Section: Discussionmentioning

confidence: 52%

The public health significance of urinary schistosomiasis as a cause of morbidity in two districts in Mali.

Traoré

Traoré²,

Kardorff³

et al. 1998

The American Journal of Tropical Medicine and Hygiene

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show abstract

“…Previous community-based ultrasound studies have indicated that severe bladder pathology occurs in school-aged children and that this group should be targeted for intervention [7][8][9][10]. This study showed that there was a peak of minor bladder wall pathology at age 5-9 years but that more-severe bladder leat New York University on June 20, 2015 http://jid.oxfordjournals.org/ Downloaded from Figure 3.…”

Section: Discussionmentioning

confidence: 72%

“…It is safe, rapid, noninvasive, and acceptable and applicable in field settings, and it enables examinations of large numbers of people at a relatively low cost per capita [7][8][9][10][11]. Ultrasonography is the only technique that is feasible at present for field use to assess the impact of the disease in terms of damage to organs, the regression of lesions after treatment, and the resurgence of pathological lesions due to reinfection [12].…”

mentioning

confidence: 99%

Resolution and Resurgence ofSchistosoma haematobium–induced Pathology After Community‐based Chemotherapy in Ghana, as Detected by Ultrasound

et al. 1999

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Community-based treatment is recommended for endemic populations with urinary schistosomiasis; however, the optimal target group for treatment and retreatment interval have not been established. Using ultrasound, this study identified subpopulations whose lesions were most likely to respond to treatment and characterized resurgence of pathology. Ultrasound examination of 1202 infected patients was followed by chemotherapy with praziquantel. A sample of 698 patients was followed for 18 months after treatment. Nearly all types of bladder pathologies resolved after treatment, regardless of patient's age or intensity of initial infection. However, many patients' upper urinary tract pathologies (62.5%) did not resolve. During the 18-month follow-up period, reappearance of severe bladder pathologies was rare, and <10% of persons had resurgence of mild bladder pathologies. For this population, retreatment is not needed annually but might be cost effective if given several years later. Confirmation from other areas is required before general policies can be formed.

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“…Dittrich and Doehring [7] first reported a detailed evaluation of ultrasonographic abnormalities of urinary tract schistosomiasis in 1986. Comparing their study and the present results shows agreement between the forms and location of urinary bladder lesions.…”

Section: Discussionmentioning

confidence: 99%

Ultrasonography of urinary tract lesions caused by bilharziasis in Yemeni patients

Salah

2000

BJU International

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Objective To evaluate abnormalities detected by ultrasonography in Yemeni patients with active Schistosoma haematobium infection. Patients and methods As part of a co-operation between a private hospital and the Schistosomiasis Control Project in Yemen, laboratory and ultrasonographic examinations were undertaken in 158 patients (eight female, 150 male, mean age 17 years) with active S. haematobium infection. Upper urinary tract dilatation, lower ureteric changes and bladder wall abnormalities (thickness, hyper-echogenicity and polypoid lesions) were recorded. Laboratory ®ndings and ultrasonographic changes were evaluated and categorized according to the age of the patients. Results Twenty-eight patients (18%) showed no morphological lesion on ultrasonography. Bladder abnormalities (thickness, hyper-echogenicity and polypoid lesions) were found in 130 patients (82%) and upper tract lesions in 86 (54%). There were no upper tract lesions seen without an associated bladder abnormality. There were polyps within the lower ureteric lumen in four patients; in these patients there was a higher incidence of severe infection. One patient had a urinary bladder tumour. Conclusion Urinary bilharziasis has typical ultrasonographic features, but may occur with no morphological lesion detectable on ultrasonography. Upper tract lesions seem to develop only with lower tract abnormalities.

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Ultrasonographical aspects of urinary schistosomiasis: Assessment of morphological lesions in the upper and lower urinary tract

Cited by 24 publications

References 29 publications

The public health significance of urinary schistosomiasis as a cause of morbidity in two districts in Mali.

The public health significance of urinary schistosomiasis as a cause of morbidity in two districts in Mali.

Resolution and Resurgence ofSchistosoma haematobium–induced Pathology After Community‐based Chemotherapy in Ghana, as Detected by Ultrasound

Ultrasonography of urinary tract lesions caused by bilharziasis in Yemeni patients

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