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1.
Infection ; 51(4): 1127-1139, 2023 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-36961623

RESUMO

PURPOSE: Neurocysticercosis is common in regions endemic for Taenia solium. Active-stage neurocysticercosis can be treated with antiparasitic medication, but so far no study on efficacy and safety has been conducted in Africa. METHODS: We conducted a prospective cohort study on treatment of neurocysticercosis in Tanzania between August 2018 and January 2022. Patients were initially treated with albendazole (15 mg/kg/d) for 10 days and followed up for 6 months. Additionally in July 2021, all participants who then still had cysts were offered a combination therapy consisting of albendazole (15 mg/kg/d) and praziquantel (50 mg/kg/d). Antiparasitic treatment was accompanied by corticosteroid medication and anti-seizure medication if the patient had experienced epileptic seizures before treatment. RESULTS: Sixty-three patients were recruited for this study, of whom 17 had a complete follow-up after albendazole monotherapy. These patients had a total of 138 cysts at baseline, of which 58 (42%) had disappeared or calcified by the end of follow-up. The median cyst reduction was 40% (interquartile range 11-63%). Frequency of epileptic seizures reduced considerably (p < 0.001). Three patients had all active cysts resolved or calcified and of the remaining 14, eight received the combination therapy which resolved 63 of 66 cysts (95%). Adverse events were infrequent and mild to moderate during both treatment cycles. CONCLUSION: Cyst resolution was unsatisfactory with albendazole monotherapy but was very high when it was followed by a combination of albendazole and praziquantel.


Assuntos
Anti-Helmínticos , Cistos , Neurocisticercose , Humanos , Neurocisticercose/tratamento farmacológico , Neurocisticercose/complicações , Neurocisticercose/parasitologia , Albendazol/efeitos adversos , Antiparasitários/efeitos adversos , Praziquantel/efeitos adversos , Tanzânia , Estudos Prospectivos , Cistos/induzido quimicamente , Cistos/complicações , Cistos/tratamento farmacológico , Convulsões/tratamento farmacológico , Convulsões/induzido quimicamente , Convulsões/complicações , Anti-Helmínticos/efeitos adversos
2.
Ann R Coll Surg Engl ; 101(3): 203-207, 2019 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-30698462

RESUMO

INTRODUCTION: Isolated ulnar shortening osteotomies can be used to treat ulnocarpal abutment secondary to radial shortening following distal radius fractures. Given the increase of fragility distal radius fractures awareness of treating the sequelae of distal radius fractures is important. We present the largest reported case series in the UK of ulnar shortening osteotomies for this indication. MATERIALS AND METHODS: Twenty patients with previous distal radial fractures were included, who presented with wrist pain and radiologically evident positive ulnar variance secondary to malunion of the distal radius with no significant intercalated instability. Patients were treated with a short oblique ulnar shortening osteotomy, using a Stanley jig and small AO compression plate system. Pre- and postoperative radiographical measurements of inclination, dorsal/volar angulation and ulnar variance were made. Patients were scored pre- and postoperatively using the Quick Disabilities of the Arm, Shoulder and Hand (QuickDASH) and Patient-Rated Wrist Evaluation scores by two orthopaedic surgeons. Mean follow-up was 24 months after surgery. RESULTS: Radiographical analysis revealed a change in the ulnar variance with an average reduction of 5.74 mm. Mean preoperative scores were 61.1 (range 25-95.5) for QuickDASH and 70.4 (range 33-92) for Patient-Rated Wrist Evaluation. At the latest follow-up, mean postoperative QuickDASH scores were 10.6 (range 0-43.2) and 17.2 (range 0-44) for Patient-Rated Wrist Evaluation. Differences in scores after surgery for both QuickDASH and Patient-Rated Wrist Evaluation were statistically significant (P < 0.01). CONCLUSIONS: The ulnar shortening osteotomy is a relatively simple procedure compared with corrective radial osteotomy, with a lower complication profile. In our series, patients showed significant improvement in pain and function by correcting the ulnar variance thus preventing ulna-carpal impaction.


Assuntos
Fraturas Mal-Unidas/cirurgia , Osteotomia/métodos , Dor/cirurgia , Fraturas do Rádio/cirurgia , Ulna/cirurgia , Adulto , Idoso , Feminino , Seguimentos , Fraturas Mal-Unidas/complicações , Fraturas Mal-Unidas/diagnóstico , Humanos , Masculino , Pessoa de Meia-Idade , Dor/etiologia , Período Pós-Operatório , Fraturas do Rádio/complicações , Fraturas do Rádio/diagnóstico por imagem , Amplitude de Movimento Articular , Estudos Retrospectivos , Resultado do Tratamento , Ulna/diagnóstico por imagem , Reino Unido , Articulação do Punho/fisiopatologia , Articulação do Punho/cirurgia
3.
Acta Trop ; 165: 252-260, 2017 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-27140860

RESUMO

Taenia solium taeniasis/cysticercosis is a neglected parasitic zoonosis with significant economic and public health impacts. Control measures can be broadly grouped into community health education, improvements in hygiene and sanitary conditions, proper meat handling at household and community level, improved standards of meat inspection, pig management, treatment of individual patients and possibly human populations, and treatment and/or vaccination of porcine populations. This manuscript looks critically into currently existing control options and provides suggestions on which (combination of) tools would be most effective in the control of T. solium taeniasis/cysticercosis in sub-Saharan Africa. Field data and disease transmission simulations suggest that implementation of a single intervention control strategy will not lead to a satisfactory reduction of disease morbidity or transmission. A feasible strategy to combat T. solium taeniasis/cysticercosis would include a combination of approaches focussing on both human (health education and treatment) and animal host (management, treatment and vaccination), which can vary for different communities and different geographical locations. Selection of the specific strategy depends on cost-effectiveness analyses based on solid field data, currently unavailable, though urgently needed; as well as on health priorities and resources of the country. A One Health approach involving medical, veterinary, environmental and social sectors is essential for T. solium to be controlled and eventually eliminated. Finally the success of any intervention is largely dependent on the level of societal and political acceptance, commitment and engagement.


Assuntos
Anti-Helmínticos/uso terapêutico , Cisticercose/tratamento farmacológico , Carne/parasitologia , Doenças dos Suínos/tratamento farmacológico , Taenia solium/efeitos dos fármacos , Teníase/tratamento farmacológico , Zoonoses/tratamento farmacológico , Adolescente , Adulto , África Subsaariana/epidemiologia , Idoso , Idoso de 80 Anos ou mais , Animais , Cisticercose/epidemiologia , Cisticercose/prevenção & controle , Feminino , Educação em Saúde , Humanos , Masculino , Pessoa de Meia-Idade , Saúde Pública , Sus scrofa/parasitologia , Suínos , Doenças dos Suínos/epidemiologia , Doenças dos Suínos/parasitologia , Doenças dos Suínos/prevenção & controle , Teníase/epidemiologia , Teníase/prevenção & controle , Vacinação , Adulto Jovem , Zoonoses/prevenção & controle
4.
Eur J Clin Nutr ; 69(10): 1125-32, 2015 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-25828630

RESUMO

BACKGROUND/OBJECTIVES: Gains in fat mass and lean mass during tuberculosis (TB) treatment may determine functional recovery and survival; yet, data are scarce. We aimed to assess predictors of fat and fat-free mass during 2 months of intensive TB treatment in a cohort in Mwanza, Tanzania. SUBJECTS/METHODS: Fat and fat-free mass were determined at the start of TB treatment and repeated after 2 months using the deuterium dilution technique. Gains in fat and fat-free mass were determined and predictors assessed using regression analysis. RESULTS: Data for 116 patients were available at baseline and during follow-up. Of these, 38.8% were females, mean age was 37.3 (s.d. 13.5) years, 69% (81) had sputum-positive TB, 45.7% (53) were HIV infected and 25% (29) were current smokers. The mean weight gain was 3.3 kg (95% confidence interval: 2.7; 3.8), and it did not differ by sex. However, compared with females, males had 1.0 (0.4; 1.6) kg/m(2) lower fat mass but 0.7 (0.2; 1.3) kg/m(2) higher fat-free mass gain. Current smoking was associated with higher fat mass (0.7 kg/m(2), 0.04; 1.4) but lower fat-free mass (-0.5 kg/m(2), -1.2; 0.07) gain. Among HIV-infected patients, antiretroviral therapy (ART) led to a lower fat gain (-1.2 kg/m(2), -2.2; -0.2) but to a higher fat-free mass among sputum-negative (2.9 kg/m(2), 0.8; 5.1) but not sputum-positive patients. CONCLUSIONS: During intensive phase of TB treatment, sex, smoking and ART were predictors of body composition. Larger studies are needed to further understand predictors of body composition during recovery, to help design interventions to improve treatment outcomes.


Assuntos
Tecido Adiposo/metabolismo , Fármacos Anti-HIV/efeitos adversos , Composição Corporal , Compartimentos de Líquidos Corporais/metabolismo , Infecções por HIV/complicações , Fumar/efeitos adversos , Tuberculose/complicações , Adulto , Feminino , Infecções por HIV/tratamento farmacológico , Humanos , Masculino , Pessoa de Meia-Idade , Fatores Sexuais , Escarro , Tanzânia , Tuberculose/terapia , Adulto Jovem
5.
J Biosoc Sci ; 47(1): 28-44, 2015 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-24830775

RESUMO

Cross-sectional surveys with carers, health workers, community drug distributors (CDDs) and neighbourhood health committees were conducted to identify factors associated with utilization of community-directed treatment (ComDT) of soil-transmitted helminths in children aged 12-59 months in Mazabuka district, Zambia. The surveys took place in December 2006 and December 2007. In addition child treatment records were reviewed. The factors that were found to be significantly associated (p < 0.05) with treatment of children by the CDDs were: (1) the perception of soil-transmitted helminth infections as having significant health importance, (2) the community-based decision to launch and subsequently implement ComDT, (3) the use of the door-to-door method of drug distribution, (4) CDDs being visited by a supervisor, (5) CDDs receiving assistance in mobilizing community members for treatment, (6) CDDs having access to a bicycle and (7) CDDs having received assistance in collecting drugs from the health centre. Despite the effectiveness of ComDT in raising treatment coverage there are factors in the implementation process that will still affect whether children and their carers utilize the ComDT approach. Identification and understanding of these factors is paramount to achieving the desired levels of utilization of such interventions.


Assuntos
Serviços de Saúde Comunitária , Helmintíase/tratamento farmacológico , Sistemas de Medicação , Saúde da População Rural , Solo/parasitologia , Anti-Helmínticos/uso terapêutico , Pré-Escolar , Estudos Transversais , Feminino , Inquéritos Epidemiológicos , Humanos , Lactente , Masculino , Zâmbia
6.
J Biosoc Sci ; 45(1): 95-109, 2013 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-22677105

RESUMO

A health facility-based (HF) approach to delivering anthelminthic drugs to children aged 12-59 months in Zambia was compared with an approach where community-directed treatment (ComDT) was added to the HF approach (HF+ComDT). This paper reports on the socio-demographic factors associated with treatment coverage in the HF+ComDT and HF areas after 18 months of implementation. Data were collected by interviewing 288 and 378 caretakers of children aged 12-59 months in the HF+ComDT and HF areas, respectively. Bivariate and multivariate logistic regression analyses were used for data analysis. Statistically significant predictors of a child being treated were: a child coming from the HF+ComDT area, being 12-36 months old, the family having lived in the area for >20 years, coming from a household with only one under-five child and living ≤3 km from the health facility. It is concluded that socio-demographic factors are of public health relevance and affect treatment coverage in both the HF+ComDT and the HF approaches. The implementation and strengthening of interventions like ComDT that bring treatment closer to households will enable more children to have access to treatment.


Assuntos
Anti-Helmínticos/uso terapêutico , Helmintíase/tratamento farmacológico , Solo/parasitologia , Animais , Pré-Escolar , Serviços de Saúde Comunitária/organização & administração , Demografia , Feminino , Helmintíase/epidemiologia , Humanos , Lactente , Entrevistas como Assunto , Masculino , Fatores Socioeconômicos , Zâmbia/epidemiologia
7.
Int J STD AIDS ; 23(9): 661-6, 2012 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-23033523

RESUMO

This study explored perceptions and care-seeking practices for HIV testing and contraception in order to obtain data for designing effective interventions to increase contraception among HIV-positive women. A triangulation of methods (household survey, focus group discussions and key informant interviews) were conducted in Wakiso district, central Uganda from January to April 2009. Results show that a majority of women, 2062/2896 (71.2%) would like to have an HIV test, while access to antiretroviral therapy (ART) was low at 237/879 (27%). Of the women who were on ART, 133/266 (50.0%) could not use contraception due to negative perceptions that a combination of ART and contraceptives would weaken them, as these drugs were perceived to be 'strong'. Fear of side-effects for contraceptives and resistance from spouses were other main reasons. Constraints to HIV testing included fear of clients knowing their own HIV status and fear of their spouses' reactions to the test results. Private midwives were identified as a potential outlet for delivering contraception to HIV-positive women.


Assuntos
Comportamento Contraceptivo/estatística & dados numéricos , Infecções por HIV/prevenção & controle , Acesso aos Serviços de Saúde/estatística & dados numéricos , Transmissão Vertical de Doenças Infecciosas/prevenção & controle , Adolescente , Adulto , Antirretrovirais/uso terapêutico , Comportamento Contraceptivo/etnologia , Feminino , Grupos Focais , Infecções por HIV/tratamento farmacológico , Infecções por HIV/transmissão , Humanos , Transmissão Vertical de Doenças Infecciosas/estatística & dados numéricos , Pessoa de Meia-Idade , Tocologia , Inquéritos e Questionários , Uganda/epidemiologia , População Urbana/estatística & dados numéricos
9.
J Hand Surg Eur Vol ; 36(3): 215-8, 2011 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-21131688

RESUMO

Twenty volunteers were recruited to compare a novel, silicone ring tourniquet (the Hemaclear® tourniquet) with a pneumatic tourniquet. After application of the tourniquets, the pain and paraesthesia experienced by the participants was scored at 1 minute, 5 minutes, and 10 minutes. This was repeated with the tourniquets on the forearm. On the upper arm, the silicone ring tourniquet was associated with a significantly lower pain score than the pneumatic tourniquet. The incidence of paraesthesia was also lower with the silicone ring tourniquet. When applied to the forearm, there was no statistically significant difference in pain scores between the two types of tourniquets. However the incidence of paraesthesia was again lower with the silicone ring tourniquet.


Assuntos
Dor/etiologia , Parestesia/etiologia , Silicones , Torniquetes/efeitos adversos , Adulto , Braço , Desenho de Equipamento , Feminino , Antebraço , Humanos , Masculino , Pessoa de Meia-Idade , Fatores de Tempo , Adulto Jovem
10.
Ann Trop Med Parasitol ; 104(1): 81-90, 2010 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-20149295

RESUMO

To estimate the weight deficit and body composition of cases of pulmonary TB (PTB), and assess the roles of HIV and the acute-phase response, a cross-sectional study was carried out in Tanzania. Weight, body mass index (BMI), arm muscle area (AMA), arm fat area (AFA) and the serum concentration of the acute-phase protein alpha(1)-antichymotrypsin (serum ACT) were evaluated for each of 532 cases of PTB and 150 'non-TB' controls. On average, the female cases of PTB not only weighed 7.8 kg less but also had BMI that were 3.1-kg/m(2) lower, AMA that were 14.8-cm(2) lower, and AFA that were 7.6-cm(2) lower than those seen in the female subjects without TB. Similarly, on average, the male cases of PTB weighed 7.1 kg less and had BMI that were 2.5-kg/m(2) lower, AMA that were 18.8-cm(2) lower and AFA that were 1.6-cm(2) lower than those seen in the male subjects without TB. Although HIV infection was associated with a 1.7-kg lower weight and a 0.6-kg/m(2) lower BMI (with deficits in both AMA and AFA) among males, it was not associated with any such deficits among the female subjects. Elevated serum ACT was found to be a negative predictor of BMI, AMA and AFA, partially explaining the effects of the PTB but not those of the HIV. There is need for a better understanding of the determinants and effects of loss of fat and lean body mass in HIV-positive tuberculosis.


Assuntos
Composição Corporal , Soropositividade para HIV/epidemiologia , HIV/imunologia , Tuberculose Pulmonar/epidemiologia , alfa 1-Antiquimotripsina/sangue , Reação de Fase Aguda/sangue , Adolescente , Adulto , Pesos e Medidas Corporais , Estudos Transversais , Feminino , Soropositividade para HIV/sangue , Soropositividade para HIV/patologia , Humanos , Modelos Lineares , Masculino , Gravidez , Distribuição por Sexo , Escarro/microbiologia , Tanzânia/epidemiologia , Tuberculose Pulmonar/sangue , Tuberculose Pulmonar/patologia
11.
Int Health ; 2(1): 52-8, 2010 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-24037051

RESUMO

This study explored whether private midwives can provide prevention of mother-to-child transmission of human immune deficiency virus (HIV) integrated with malaria prevention services in pregnancy, and assess how this affects access and equity to services. A household survey supplemented by key informant interviews was conducted in Wakiso district, central Uganda from January to April 2009. Results show that private midwives are already providing essential maternity services to women (antenatal care, 22.0% and delivery care, 19.5%); and they are trusted by their communities. Despite this, access to HIV and malaria preventive services was low among women in the lowest wealth quintile, the young and the less educated. Although private midwives understood the concept of integration, their clinics were offering limited integrated services, at 30%. The constraints experienced were inadequate skills, high costs of drugs and supplies limiting the capacity to have enough stocks, lack of support supervision, low community awareness on the importance of seeking antenatal and delivery care from trained providers and inadequate support of women by their spouses. In order to improve integration, it was recommended that private midwives be given refresher courses; improve their capacity to stock essential drugs and supplies; and receive supervision and support from the district health authorities.

12.
J Biosoc Sci ; 42(2): 271-83, 2010 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-19895727

RESUMO

Understanding care-seeking practices and barriers to prevention of mother-to-child transmission (PMTCT) of HIV is necessary in designing effective programmes to address the high disease burden due to HIV/AIDS in Uganda. This study explored perceptions, care-seeking practices and barriers to PMTCT among young and HIV-positive women. A household survey (10,706 women aged 14-49 years), twelve focus group discussions and 66 key informant interviews were carried out between January and April 2009 in Wakiso district, central Uganda. Results show that access to PMTCT services (family planning, HIV counselling and testing and delivery at health units) was poor. Decision making was an important factor in accessing PMTCT services. Socioeconomic factors (wealth quintile, age, education level) and institutional practices also influenced access to PMTCT. Overall, having had an HIV test was highest when both men and women made decisions together or when women were empowered to make their own decisions. This was significant across wealth quintiles (p=0.0001), age groups (p=0.0001) and education levels (p=0.0001). The least level of HIV testing was when men made decisions for their spouses; and this was the case with family planning and deliveries at health units. Other barriers to PMTCT were fear of women and male spouses to have an HIV test and the perception that HIV testing is compulsory in antenatal clinics. In conclusion, to increase access to PMTCT among women, especially the young, poor and least educated, there is a need to empower them to make decisions on health seeking, and also to empower men to support their spouses to make good decisions. Other barriers like fear of having an HIV test should be addressed through appropriate counselling of clients.


Assuntos
Aconselhamento , Infecções por HIV/prevenção & controle , Infecções por HIV/transmissão , Transmissão Vertical de Doenças Infecciosas/prevenção & controle , Transmissão Vertical de Doenças Infecciosas/estatística & dados numéricos , Cuidado Pré-Natal/estatística & dados numéricos , Feminino , Acesso aos Serviços de Saúde/organização & administração , Humanos , Recém-Nascido , Enfermeiras Obstétricas , Aceitação pelo Paciente de Cuidados de Saúde/estatística & dados numéricos , Gravidez , Complicações Infecciosas na Gravidez/epidemiologia , Complicações Infecciosas na Gravidez/prevenção & controle , Setor Privado , Uganda/epidemiologia
13.
Sex Transm Infect ; 85(7): 534-9, 2009 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-19703840

RESUMO

OBJECTIVES: To explore whether private midwives can perform HIV counselling and testing, provide antiretroviral treatment and contraceptives, and how this affects access to services especially among young and HIV-positive women. METHODS: A formative study was conducted between January and April 2009 to assess care-seeking practices and perceptions on the prevention of mother-to-child transmission (PMTCT) and family planning services in Wakiso district, central Uganda. A household survey supplemented by 12 focus group discussions and 66 key informant interviews was carried out between January and April 2009. RESULTS: 10,706 women, mean age 25.8 years (14-49 years) were interviewed. The majority of women, 4786 (57%) were in the lowest wealth quintile; 62.0% were not using family planning (p<0.000); 56.2% did not access HIV counselling and testing because they feared knowing their HIV status (p<0.013), while 66.5% feared spouses knowing their HIV status (p<0.013). Access to these services among the young women and those with no education was also poor. Private midwives provide HIV testing to 7.8% of their clients; 5.9% received antiretroviral drugs and 8.6% received contraceptives. Client satisfaction with services at private midwifery practices was high. Private midwives are trusted and many clients confide in them. An intervention through private midwives was perceived to improve access because of short distances and no transport costs. Adolescents prioritized confidentiality, while subsidizing costs, community sensitisation and focusing on male spouses were overwhelmingly recommended. CONCLUSIONS: Private midwives clinics are potential delivery outlets for PMTCT in Uganda. A well-designed intervention linking them to the public sector and the community could increase access to services.


Assuntos
Infecções por HIV/transmissão , Transmissão Vertical de Doenças Infecciosas/prevenção & controle , Enfermeiras Obstétricas/economia , Complicações Infecciosas na Gravidez/prevenção & controle , Cuidado Pré-Natal/economia , Setor Privado , Adolescente , Adulto , Aconselhamento , Serviços de Planejamento Familiar/economia , Serviços de Planejamento Familiar/organização & administração , Serviços de Planejamento Familiar/provisão & distribuição , Feminino , Infecções por HIV/prevenção & controle , Acesso aos Serviços de Saúde/economia , Acesso aos Serviços de Saúde/organização & administração , Humanos , Transmissão Vertical de Doenças Infecciosas/economia , Pessoa de Meia-Idade , Gravidez , Complicações Infecciosas na Gravidez/economia , Cuidado Pré-Natal/organização & administração , Uganda , Adulto Jovem
14.
Parasitology ; 136(13): 1771-9, 2009 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-19490727

RESUMO

Schistosoma haematobium is refractory to praziquantel (PZQ) during the prepatent period of infection. A hypothesis based on this observation is that in areas where S. haematobium transmission is seasonal, the outcome of chemotherapy depends on the timing of the treatment relative to the annual transmission pattern. To examine this hypothesis, a study was carried out in southern Mozambique. Following demonstration of seasonal transmission, PZQ was administered separately to two cohorts of S. haematobium-infected schoolchildren in (1) the high and (2) the low transmission seasons and followed up after two months when levels of infection and intensities were measured. The prevalence of infection decreased from 54.2% and 51.7% in cohorts 1 and 2 to 30.3% and 1.8%, respectively. The geometric mean intensity of infection decreased from 23.3 eggs/10 ml of urine at baseline to 15.6 eggs/10 ml of urine in cohort 1 (treated during high transmission season), and from 23.5 eggs/10 ml urine to 7.3 eggs/10 ml of urine in cohort 2 (treated during low transmission season). The observed cure rates in cohorts 1 and 2 were 69.7% and 98.2%, respectively. Differences in infection between the cohorts in terms of cure rate and level of infection two months post-treatment were statistically significant and indicate that in areas with a seasonal transmission pattern, the effect of PZQ can be enhanced if treatment takes place during the low transmission season. We conclude that appropriately timed PZQ administration will increase the impact of schistosomiasis control programmes.


Assuntos
Praziquantel/uso terapêutico , Esquistossomose Urinária/tratamento farmacológico , Esquistossomicidas/uso terapêutico , Criança , Estudos de Coortes , Feminino , Humanos , Masculino , Moçambique/epidemiologia , Praziquantel/administração & dosagem , Prevalência , Esquistossomose Urinária/epidemiologia , Esquistossomicidas/administração & dosagem , Estações do Ano , População Urbana
15.
Parasitology ; 136(13): 1851-7, 2009 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-19281636

RESUMO

The aim of this study was to assess the effect of two doses of 40 mg/kg praziquantel with 2 weeks interval versus a standard single dose of 40 mg/kg on cure rates, egg reduction, intensity of infection, and micro-haematuria in Schistosoma haematobium infections. A randomised controlled intervention study was carried out among school-aged children in two different endemic settings with follow-up at 3, 6 and 18 months following drug administration. Differences in cure rates between the two treatment regimens were not significant. However, in high transmission areas, the double treatment regimen was more effective in egg reduction than single treatment regimen and the difference in egg reduction between the two treatments was significant at 3 months (P<0.005), 6 months (P<0.0001) and 18 months (P<0.003) after treatment. There was a significant difference in the effect of the two treatments on prevalence of micro-haematuria at 18-month follow-up in both Koulikoro (P<0.001) and Selingue (P<0.003). The study shows that although no significant difference could be observed in the overall cure-rates between the two treatment regimens, the effect of double treatment was a significant reduction in infection intensity as well as micro-haematuria which may have a great impact in reducing subtle morbidity.


Assuntos
Praziquantel/administração & dosagem , Praziquantel/uso terapêutico , Esquistossomose Urinária/tratamento farmacológico , Esquistossomicidas/administração & dosagem , Esquistossomicidas/uso terapêutico , Adolescente , Animais , Criança , Relação Dose-Resposta a Droga , Esquema de Medicação , Feminino , Hematúria , Humanos , Masculino , Mali/epidemiologia , Schistosoma haematobium , Esquistossomose Urinária/epidemiologia , Esquistossomose Urinária/urina
16.
Parasitology ; 136(13): 1781-8, 2009 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-19178756

RESUMO

Control programmes generally use a school-based strategy of mass drug administration to reduce morbidity of schistosomiasis and soil-transmitted helminthiasis (STH) in school-aged populations. The success of school-based programmes depends on treatment coverage. The community-directed treatment (ComDT) approach has been implemented in the control of onchocerciasis and lymphatic filariasis in Africa and improves treatment coverage. This study compared the treatment coverage between the ComDT approach and the school-based treatment approach, where non-enrolled school-aged children were invited for treatment, in the control of schistosomiasis and STH among enrolled and non-enrolled school-aged children. Coverage during the first treatment round among enrolled children was similar for the two approaches (ComDT: 80.3% versus school: 82.1%, P=0.072). However, for the non-enrolled children the ComDT approach achieved a significantly higher coverage than the school-based approach (80.0 versus 59.2%, P<0.001). Similar treatment coverage levels were attained at the second treatment round. Again, equal levels of treatment coverage were found between the two approaches for the enrolled school-aged children, while the ComDT approach achieved a significantly higher coverage in the non-enrolled children. The results of this study showed that the ComDT approach can obtain significantly higher treatment coverage among the non-enrolled school-aged children compared to the school-based treatment approach for the control of schistosomiasis and STH.


Assuntos
Anti-Helmínticos/uso terapêutico , Helmintíase/prevenção & controle , Programas Nacionais de Saúde/organização & administração , Esquistossomose/prevenção & controle , Esquistossomicidas/uso terapêutico , Adolescente , África/epidemiologia , Anti-Helmínticos/administração & dosagem , Criança , Serviços de Saúde Comunitária/estatística & dados numéricos , Conhecimentos, Atitudes e Prática em Saúde , Helmintíase/tratamento farmacológico , Humanos , Esquistossomose/tratamento farmacológico , Esquistossomicidas/administração & dosagem , Instituições Acadêmicas , Solo/parasitologia
17.
J Biosoc Sci ; 41(1): 89-105, 2009 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-18647439

RESUMO

The success of the Community-Directed Treatment (ComDT) approach in the control of onchocerciasis and filariasis has caught the attention of other disease control programmes. In this study the ComDT approach was implemented and compared with the school-based approach for control of schistosomiasis and soil-transmitted helminthiasis among school-age children in Lushoto District, Tanzania. This was a qualitative study, consisting of in-depth interviews with village leaders, community drug distributors (CDDs) and schoolteachers, as well as focus group discussions with separate groups of mothers and fathers to assess the perceptions and experiences of the villagers on the implementation of the two approaches. It was found that the villagers accepted the ComDT approach and took the responsibility of selecting the CDDs, organizing and implementing their own method of distributing drugs to the school-age children in their villages. The ComDT approach was well received and was successfully implemented in the villages. Although the villagers pointed out the limitation in reaching the non-enrolled children in the school-based approach, they also expressed satisfaction with this approach. This study suggests that the ComDT approach is well accepted and can be implemented effectively to ensure better coverage of especially non-enrolled school-age children.


Assuntos
Serviços de Saúde Comunitária/estatística & dados numéricos , Conhecimentos, Atitudes e Prática em Saúde , Helmintíase/prevenção & controle , Esquistossomose/prevenção & controle , Serviços de Saúde Escolar/estatística & dados numéricos , Instituições Acadêmicas , Percepção Social , Estudantes/estatística & dados numéricos , Adolescente , Adulto , Animais , Criança , Feminino , Helmintíase/epidemiologia , Helmintíase/transmissão , Humanos , Masculino , Pessoa de Meia-Idade , Desenvolvimento de Programas , Avaliação de Programas e Projetos de Saúde , Pesquisa Qualitativa , Esquistossomose/epidemiologia , Esquistossomose/transmissão , Microbiologia do Solo , Tanzânia/epidemiologia , Adulto Jovem
18.
Trans R Soc Trop Med Hyg ; 102(7): 685-93, 2008 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-18513767

RESUMO

The main objective of this study was to assess whether traditional birth attendants, drug-shop vendors, community reproductive health workers and adolescent peer mobilisers could administer intermittent preventive treatment (IPTp) with sulfadoxine-pyrimethamine (SP) to pregnant women. The study was implemented in 21 community clusters (intervention) and four clusters where health centres provided routine IPTp (control). The primary outcome measures were the proportion of women who completed two doses of SP; the effect on anaemia, parasitaemia and low birth weight; and the incremental cost-effectiveness of the intervention. The study enrolled 2785 pregnant women. The majority, 1404/2081 (67.5%) receiving community-based care, received SP early and adhered to the two recommended doses compared with 281/704 (39.9%) at health centres (P<0.001). In addition, women receiving community-based care had fewer episodes of anaemia or severe anaemia and fewer low birth weight babies. The cost per woman receiving the full course of IPTp was, however, higher when delivered via community care at US$2.60 compared with US$2.30 at health centres, due to the additional training costs. The incremental cost-effectiveness ratio of the community delivery system was Uganda shillings 1869 (US$1.10) per lost disability-adjusted life-year (DALY) averted. In conclusion, community-based delivery increased access and adherence to IPTp and was cost-effective.


Assuntos
Antimaláricos/administração & dosagem , Sistemas de Liberação de Medicamentos/economia , Malária/prevenção & controle , Complicações Parasitárias na Gravidez/prevenção & controle , Pirimetamina/administração & dosagem , Sulfadoxina/administração & dosagem , Adolescente , Anemia/tratamento farmacológico , Anemia/prevenção & controle , Animais , Antimaláricos/economia , Serviços de Saúde Comunitária/economia , Serviços de Saúde Comunitária/normas , Análise Custo-Benefício , Combinação de Medicamentos , Sistemas de Liberação de Medicamentos/normas , Feminino , Acesso aos Serviços de Saúde/normas , Humanos , Recém-Nascido , Malária/tratamento farmacológico , Centros de Saúde Materno-Infantil/economia , Centros de Saúde Materno-Infantil/normas , Aceitação pelo Paciente de Cuidados de Saúde/psicologia , Gravidez , Complicações Parasitárias na Gravidez/tratamento farmacológico , Resultado da Gravidez , Cuidado Pré-Natal/normas , Pirimetamina/economia , Fatores de Risco , Sulfadoxina/economia , Uganda
19.
Ann Trop Med Parasitol ; 102(4): 297-308, 2008 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-18510810

RESUMO

Between 2000 and 2004, a cross-sectional survey was conducted, as part of a prospective cohort study, among the women attending antenatal-care clinics in Bondo district, a malaria-endemic area of western Kenya. The aim was to assess the prevalence of iron deficiency and determine the predictors of haemoglobin and serum ferritin concentrations in the women who had a gestational age between 14 and 24 weeks. A standardized questionnaire was used to collect and store the relevant bio-data for the study. Haemoglobin and ferritin concentrations were evaluated, sickle-cell status was determined, and malarial parasitaemias were detected and evaluated, using blood samples collected at enrollment. Multiple regression analysis was then used to test for significant predictors of the haemoglobin and serum ferritin concentrations. Although 842 women were enrolled in the prospective cohort study, haemoglobin concentrations were evaluated for only 828 of them, serum ferritin levels for 621, and levels of parasitaemia for 812. The mean haemoglobin concentration recorded was 10.9 g/dl. Although 37.9% of the subjects had mild-moderate anaemia (7.0-10.5 g haemoglobin/dl), only 0.5% were severely anaemic (<7.0 g haemoglobin/dl). The geometric mean serum ferritin concentration recorded was 18.9 microg/litre, and 32.3% of the subjects evaluated had low serum concentrations of ferritin (<12 microg/litre). Among the parasitaemic primigravidae (but not the parasitaemic multigravidae), those found positive for sickle-cell trait had significantly lower haemoglobin concentrations than those found negative in a sickling test (P=0.01). Among the pregnant women of Bondo district, gravidity, malarial infection and sickle cell appear to be key predictors of haemoglobin concentration.


Assuntos
Anemia/sangue , Ferritinas/metabolismo , Hemoglobinas/metabolismo , Malária/sangue , Complicações Hematológicas na Gravidez/sangue , Complicações Parasitárias na Gravidez/sangue , Adolescente , Adulto , Anemia/epidemiologia , Métodos Epidemiológicos , Fezes/enzimologia , Feminino , Idade Gestacional , Humanos , Quênia/epidemiologia , Malária/epidemiologia , Gravidez , Complicações Hematológicas na Gravidez/epidemiologia , Complicações Parasitárias na Gravidez/epidemiologia , Cuidado Pré-Natal , Saúde da População Rural , Traço Falciforme/sangue
20.
Public Health ; 122(5): 516-25, 2008 May.
Artigo em Inglês | MEDLINE | ID: mdl-18358506

RESUMO

BACKGROUND: The impact of intermittent preventive treatment (IPTp) on malaria in pregnancy is well known. However, in countries where this policy is implemented, poor access and low compliance have been widely reported. Novel approaches are needed to deliver this intervention. OBJECTIVE: To assess whether traditional birth attendants, drug-shop vendors, community reproductive health workers and adolescent peer mobilizers can administer IPTp with sulphadoxine-pyrimethamine (SP) to pregnant women, reach those at greatest risk of malaria, and increase access and compliance with IPTp. STUDY DESIGN: An intervention study compared the delivery of IPTp in the community with routine delivery of IPTp at health units. The primary outcome measures were the proportion of adolescents and primigravidae accessed, and the proportion of women who received two doses of SP. The study also assessed the effect of the intervention on access to malaria treatment, antenatal care, other services and related costs. RESULTS: More women (67.5%) received two doses of SP through the community approach compared with health units (39.9%; P<0.0001). Women who accessed IPTp in the community were at an earlier stage of pregnancy (21.0 weeks of gestation) than women who accessed IPTp at health units (23.1 weeks of gestation; P<0.0001). However, health units were visited by a higher proportion of primigravidae (23.6% vs 20.0%; P<0.04) and adolescents (28.4% vs 25.0%; P<0.03). Generally, women who accessed IPTp at health units made more visits for malaria treatment (2.6 (1.0-4.7) vs 1.8 (1.4-2.2); P<0.03). At recruitment, more women who accessed IPTp at health units sought malaria treatment compared with those who accessed IPTp in the community (56.9% vs 49.2%). However, at delivery, a high proportion of women who accessed IPTp in the community had sought malaria treatment (70.3%), suggesting the possibility that the novel approach had a positive impact on care seeking for malaria. Similarly, utilization of antenatal care, insecticide-treated nets and delivery care by women in the community was high. The total costs per woman receiving two doses of SP for IPTp were 4093 Uganda shillings (US$ 2.3) for women who accessed IPTp at health units, and 4491 Uganda shillings (US$ 2.6) for women who accessed IPTp in the community. CONCLUSION: The community approach was effective for the delivery of IPTp, although women still accessed and benefited from malaria treatment and other services at health units. However, the costs for accessing malaria treatment and other services are high and could be a limiting factor in mitigating the burden of malaria in Uganda.


Assuntos
Antimaláricos/uso terapêutico , Serviços de Saúde Comunitária/organização & administração , Malária/prevenção & controle , Aceitação pelo Paciente de Cuidados de Saúde , Complicações Infecciosas na Gravidez/prevenção & controle , Pirimetamina/uso terapêutico , Sulfadoxina/uso terapêutico , Adolescente , Adulto , Antimaláricos/administração & dosagem , Esquema de Medicação , Combinação de Medicamentos , Feminino , Acesso aos Serviços de Saúde/organização & administração , Humanos , Pessoa de Meia-Idade , Gravidez , Pirimetamina/administração & dosagem , Fatores Socioeconômicos , Sulfadoxina/administração & dosagem , Uganda/epidemiologia
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