Reliability of current estimates of schistosomiasis prevalence in the Rainforest Zone of the state of Pernambuco, Northeastern Brazil

Favre, Tereza Cristina; Ximenes, Ricardo A. A.; Galvao, Aline F; Pereira, Ana Paula B.; Wanderlei, Tereza Neuma Guedes; Barbosa, Constança Simões; Pieri, Otávio Sarmento

doi:10.1590/s0074-02762006000900011

Cited by 12 publications

(15 citation statements)

References 6 publications

(9 reference statements)

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“…Taking into consideration the results discussed above, which express the health situation among schoolchildren in some municipalities and localities in Pernambuco, along with the observation that it has been impossible for the PCE in Pernambuco to attain its goal of covering the endemic areas for schistosomiasis, we corroborate the propositions of Favre et al 14 who showed that it is feasible to diagnose and treat at least the school-age children in the ZMP.…”

Section: Poso�vity For S Mansoni (%) Infec�on Intensity For S Mansosupporting

confidence: 86%

“…Even though various surveys and studies over the last 30 years have shown occurrences of schistosomiasis and geohelminthiasis in the ZMP 7,8,14,15 no preventive measures are known to have been effective in the endemic area for decreasing the numbers of cases and morbidity due to these health hazards among schoolchildren in the ZMP. …”

Section: Poso�vity For S Mansoni (%) Infec�on Intensity For S Mansomentioning

confidence: 99%

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Spatial distribution of schistosomiasis and geohelminthiasis cases in the rural areas of Pernambuco, Brazil

Barbosa

Araújo

Neto

et al. 2012

Rev. Soc. Bras. Med. Trop.

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INTRODUCTION: The prevalence and intensity of geohelminth infections and schistosomiasis remain high in the rural areas of Zona da Mata, Pernambuco (ZMP), Brazil, where these parasites still represent a significant public health problem. The present study aimed to spatially assess the occurrences of schistosomiasis and geohelminthiasis in the ZMP. METHODS: The ZMP has a population of 1,132,544 inhabitants, formed by 43 municipalities. An ecological study was conducted, using secondary data relating to positive human cases and parasite loads of schistosomiasis and positive human cases of geohelminthiasis that were worked up in Excel 2007. We used the coordinates of the municipal headquarters to represent the cities which served as the unit of analysis of this study. The Kernel estimator was used to spatially analyze the data and identify distribution patterns and case densities, with analysis done in ArcGIS software. RESULTS: Spatial analysis from the Kernel intensity estimator made it possible to construct density maps showing that the northern ZMP was the region with the greatest number of children infected with parasites and the populations most intensely infected by Schistosoma mansoni. In relation to geohelminths, there was higher spatial distribution of cases of Ascaris lumbricoides and Trichuris trichiura in the southern ZMP, and greater occurrence of hookworms in the northern/central ZMP. CONCLUSIONS: Despite several surveys and studies showing occurrences of schistosomiasis and geohelminthiasis in the ZMP, no preventive measures that are known to have been effective in decreasing these health hazards have yet been implemented in the endemic area.

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Section: Poso�vity For S Mansoni (%) Infec�on Intensity For S Mansosupporting

confidence: 86%

Section: Poso�vity For S Mansoni (%) Infec�on Intensity For S Mansomentioning

confidence: 99%

Spatial distribution of schistosomiasis and geohelminthiasis cases in the rural areas of Pernambuco, Brazil

Barbosa

Araújo

Neto

et al. 2012

Rev. Soc. Bras. Med. Trop.

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“…The data regarding prevalence of infection will be evaluated in a separate paper (Favre et al 2006).…”

Section: Methodsmentioning

confidence: 99%

Attaining the minimum target of resolution WHA 54.19 for schistosomiasis control in the Rainforest Zone of the state of Pernambuco, Northeastern Brazil

Favre

Ximenes

Galvao

et al. 2006

Mem. Inst. Oswaldo Cruz

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“…(5)(6)(7) In the northeastern region of Brazil, hepatosplenic schistosomiasis (HSS)-the hepatosplenic form of schistosomiasis mansoni-is considered to be a leading cause of PH. (8) It is known that HSS causes presinusoidal PH through increased blood flow from the splenic vein and increased resistance due to liver fibrosis, without significant destruction of hepatocytes, thus preserving the architecture and function of the liver. (9) Liver fibrosis in HSS, also known as Symmers' fibrosis, is not diffuse and is located in the periportal region.…”

Section: Introductionmentioning

confidence: 99%

Ocorrência de síndrome hepatopulmonar em pacientes cirróticos candidatos a transplante de fígado

et al. 2010

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Objective: To determine the occurrence of hepatopulmonary syndrome (HPS) in patients with cirrhosis who are candidates for liver transplantation; to compare demographic, clinical, laboratory, and spirometric characteristics, as well as echocardiography results, arterial blood gas analysis, and severity of liver disease between the groups of patients with and without HPS; and to describe the occurrence of HPS in the subgroup of patients with cirrhosis and schistosomiasis mansoni (mixed liver disease). Methods: Between January and November of 2007, we evaluated 44 patients under treatment at the Liver Transplant Outpatient Clinic of the Federal University of Pernambuco Hospital das Clínicas, in the city of Recife, Brazil. The diagnostic criteria for HPS were intrapulmonary vascular dilatation, identified by transthoracic echocardiography, and an alveolar-arterial oxygen tension difference ≥ 15 mmHg or a PaO 2 < 80 mmHg. Results: The mean age of the patients was 52 years, and 31 patients (70%) were males. The most common cause of cirrhosis was alcohol use. Schistosomiasis was present in 28 patients (64%). Of the 44 patients, 20 (45.5%) were diagnosed with HPS. No significant differences were found between those patients and the patients without HPS in terms of any of the characteristics studied. Of the 28 patients with cirrhosis and schistosomiasis, 10 (35.7%) were diagnosed with HPS. Conclusions: In the population studied, HPS was highly prevalent and did not correlate with any of the variables analyzed.Keywords: Hepatopulmonary syndrome; Liver transplantation; Liver cirrhosis; Hypertension, portal; Schistosomiasis mansoni; Echocardiography. ResumoObjetivo: Verificar a ocorrência da síndrome hepatopulmonar (SHP) em pacientes cirróticos candidatos a transplante de fígado; comparar as características demográficas, clínicas, laboratoriais e espirométricas, resultados de ecocardiografia, análise de gases arteriais e da gravidade da doença hepática nos pacientes com e sem SHP; e descrever a ocorrência de SHP no subgrupo de pacientes com cirrose associada à esquistossomose mansônica (doença hepática mista). Métodos: Entre janeiro e novembro de 2007, foram avaliados 44 pacientes inscritos no Ambulatório de Transplante Hepático do Hospital das Clínicas da Universidade Federal de Pernambuco, em Recife (PE). Os critérios diagnósticos para SHP foram a presença de dilatações vasculares intrapulmonares, identificadas por ecocardiografia transtorácica, assim como diferença alveoloarterial de oxigênio ≥ 15 mmHg ou PaO 2 < 80 mmHg. Resultados: A idade média foi 52 anos, e 31 pacientes (70%) eram do sexo masculino. A causa mais frequente de cirrose foi uso de etanol. A esquistossomose esteve presente em 28 pacientes (64%). Dos 44 pacientes, 20 (45,5%) foram diagnosticados com SHP. Não foram observadas diferenças significativas em relação às características estudadas. No subgrupo de pacientes com cirrose associada à esquistossomose, 10/28 (35,7%) receberam o diagnóstico de SHP. Conclusões: A SHP apresentou elevada prevalênc...

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Reliability of current estimates of schistosomiasis prevalence in the Rainforest Zone of the state of Pernambuco, Northeastern Brazil

Abstract: The Program for Schistosomiasis Control within the Unified Health System (PCE-SUS) was implemented by 1999 in the Rainforest

Cited by 12 publications

References 6 publications

Spatial distribution of schistosomiasis and geohelminthiasis cases in the rural areas of Pernambuco, Brazil

Spatial distribution of schistosomiasis and geohelminthiasis cases in the rural areas of Pernambuco, Brazil

Attaining the minimum target of resolution WHA 54.19 for schistosomiasis control in the Rainforest Zone of the state of Pernambuco, Northeastern Brazil

Ocorrência de síndrome hepatopulmonar em pacientes cirróticos candidatos a transplante de fígado

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