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1.
BMC Infect Dis ; 18(1): 506, 2018 Oct 05.
Artículo en Inglés | MEDLINE | ID: mdl-30290790

RESUMEN

The ongoing transmission of Mycobacterium (M.) leprae reflected in a very slow decline in leprosy incidence, forces us to be innovative and conduct cutting-edge research. Single dose rifampicin (SDR) as post-exposure prophylaxis (PEP) for contacts of leprosy patients, reduces their risk to develop leprosy by 60%. This is a promising new preventive measure that can be integrated into routine leprosy control programmes, as is being demonstrated in the Leprosy Post-Exposure Programme that is currently ongoing in eight countries.The limited (60%) effectiveness of SDR is likely due to the fact that some contacts have a preclinical infection beyond the early stages for which SDR is not sufficient to prevent the development of clinical signs and symptoms of leprosy. An enhanced regimen, more potent against a higher load of leprosy bacteria, would increase the effectiveness of this preventive measure significantly.The Netherlands Leprosy Relief (NLR) is developing a multi-country study aiming to show that breaking the chain of transmission of M. leprae is possible, evidenced by a dramatic reduction in incidence. In this study the assessment of the effectiveness of an enhanced prophylactic regimen for leprosy is an important component. To define the so called PEP++ regimen for this intervention study, NLR convened an Expert Meeting that was attended by clinical leprologists, public health experts, pharmacologists, dermatologists and microbiologists.The Expert Meeting advised on combinations of available drugs, with known efficacy against leprosy, as well as on the duration of the intake, aiming at a risk reduction of 80-90%. To come to a conclusion the Expert Meeting considered the bactericidal, sterilising and bacteriostatic activity of the potential drugs. The criteria used to determine an optimal enhanced regimen were: effectiveness, safety, acceptability, availability, affordability, feasibility and not inducing drug resistance.The Expert Meeting concluded that the enhanced regimen for the PEP++ study should comprise three standard doses of rifampicin 600 mg (weight adjusted when given to children) plus moxifloxacin 400 mg given at four-weekly intervals. For children and for adults with contraindications for moxifloxacin, moxifloxacin should be replaced by clarithromycin 300 mg (weight adjusted).


Asunto(s)
Antibacterianos/uso terapéutico , Lepra/prevención & control , Profilaxis Posexposición/métodos , Claritromicina/uso terapéutico , Fluoroquinolonas/uso terapéutico , Humanos , Lepra/tratamiento farmacológico , Lepra/microbiología , Moxifloxacino , Países Bajos , Rifampin/uso terapéutico
2.
Cochrane Database Syst Rev ; (5): CD005491, 2016 May 23.
Artículo en Inglés | MEDLINE | ID: mdl-27210895

RESUMEN

BACKGROUND: Leprosy causes nerve damage that can result in nerve function impairment and disability. Corticosteroids are commonly used for treating nerve damage, although their long-term effect is uncertain. This is an update of a review first published in 2007, and previously updated in 2009 and 2011. OBJECTIVES: To assess the effects of corticosteroids on nerve damage in leprosy. SEARCH METHODS: On 16 June 2015, we searched the Cochrane Neuromuscular Specialised Register, the Cochrane Central Register of Controlled Trials (CENTRAL), MEDLINE, EMBASE, CINAHL Plus, and LILACS. We also checked clinical trials registers and contacted trial authors. SELECTION CRITERIA: Randomised controlled trials (RCTs) and quasi-RCTs of corticosteroids for nerve damage in leprosy. The comparators were no treatment, placebo treatment, or a different corticosteroid regimen. DATA COLLECTION AND ANALYSIS: The primary outcome was improvement in nerve function after one year. Secondary outcomes were change in nerve pain, limitations in activities of daily living, limitations in participation, and adverse events. Two review authors independently extracted data and assessed trial quality. When data were lacking, we contacted trial authors for additional information. MAIN RESULTS: We included five RCTs involving 576 people. The trials were largely at low risk of bias, but we considered the quality of the evidence from these trials as moderate to low, largely due to imprecision from small sample sizes. Two out of the five trials reported on improvement in nerve function at one year. These two trials compared prednisolone with placebo. One trial, with 84 participants, treated mild sensory impairment of less than six months' duration, and the other, with 95 participants, treated nerve function impairment of 6 to 24 months' duration. There was no significant difference in nerve function improvement after 12 months between people treated with prednisolone and those treated with placebo. Adverse events were not reported significantly more often with corticosteroids than with placebo. The other three trials did not report on the primary outcome measure. One (334 participants) compared three corticosteroid regimens for severe type 1 reactions. No serious side effects of steroids were reported in any participant during the follow-up period. Another trial (21 participants) compared low-dose prednisone with high-dose prednisone for ulnar neuropathy. Two participants on the higher dose of prednisone reported adverse effects. The last (42 participants) compared intravenous methylprednisolone and oral prednisolone with intravenous normal saline and oral prednisolone. The trial found no significant differences between the groups in the occurrence of adverse events. AUTHORS' CONCLUSIONS: Corticosteroids are used for treating acute nerve damage in leprosy, but moderate-quality evidence from two RCTs treating either longstanding or mild nerve function impairment did not show corticosteroids to have a superior effect to placebo on nerve function improvement. A third trial showed significant benefit from a five-month steroid regimen over a three-month regimen in terms of response to treatment (need for additional corticosteroids). Further RCTs are needed to establish optimal corticosteroid regimens and to examine the efficacy and safety of adjuvant or new therapies for treating nerve damage in leprosy. Future trials should address non-clinical aspects, such as costs and impact on quality of life, which are highly relevant indicators for both policymakers and participants.


Asunto(s)
Glucocorticoides/uso terapéutico , Lepra/complicaciones , Enfermedades del Sistema Nervioso Periférico/tratamiento farmacológico , Trastornos Somatosensoriales/tratamiento farmacológico , Glucocorticoides/administración & dosificación , Glucocorticoides/efectos adversos , Humanos , Metilprednisolona/uso terapéutico , Enfermedades del Sistema Nervioso Periférico/diagnóstico , Enfermedades del Sistema Nervioso Periférico/etiología , Prednisolona/administración & dosificación , Prednisolona/uso terapéutico , Ensayos Clínicos Controlados Aleatorios como Asunto , Trastornos Somatosensoriales/diagnóstico , Trastornos Somatosensoriales/etiología
3.
Lepr Rev ; 85(1): 2-17, 2014 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-24974438

RESUMEN

The global prevalence of leprosy has declined from 5.2 million in the 1980 s to 200,000 today. However, the new case detection rate remains high: over the last 8 years, around 220,000-250,000 people have been diagnosed with leprosy each year. In June 2013, an international meeting was organised by the Novartis Foundation for Sustainable Development in Geneva, Switzerland,2 with the objective of discussing the feasibility of interrupting the transmission of leprosy. The group of physicians, epidemiologists and public health professionals concluded that a successful programme would require early diagnosis and prompt multidrug therapy (MDT) for all patients, tracing and post-exposure prophylaxis (PEP) for contacts of patients newly diagnosed with leprosy, improvements in diagnostic tools, as well as strict epidemiological surveillance and response systems to monitor progress. As a follow-up, a second expert group meeting was convened by the Novartis Foundation in January 2014 in Zurich, Switzerland, with the objective of reviewing the evidence for chemoprophylaxis in contacts and high-risk communities. The meeting also considered the definitions of 'contacts' and 'contact tracing', discussed alternative prophylaxis regimens, preliminary findings of operational pilot projects on PEP in Indonesia, as well as the development of diagnostic tools, and identified the priority questions for operational research in leprosy transmission. The meeting outlined how contact tracing and chemoprophylaxis programmes can be implemented to interrupt leprosy transmission. The expert panel reached the following conclusions: Chemoprophylaxis with single-dose rifampicin (SDR) is efficacious in reducing the risk of developing leprosy, although the protective effect appears to be smaller in contacts closer to the index patient than in more distant contacts.3 SDR can be targeted to contacts or implemented as community mass prophylaxis in certain circumstances; the preferred approach depends on local factors, such as the case detection rate, the level of community stigma against leprosy, and the degree of access to healthcare for patients and contacts. Alternative prophylaxis regimens and the role of post-exposure immunoprophylaxis need to be further investigated. Contact tracing combined with PEP across very diverse settings offers protection rates similar to those reported in controlled trials. For high-incidence pockets ('hotspots') or remote or confined high-incidence populations ('hotpops'), blanket administration of PEP may be a better option. Implementation of contact-tracing programmes is feasible and cost-effective, particularly in high-risk groups, but it should be integrated into local healthcare services to ensure their long-term sustainability. Funding and support must be maintained after an initial pilot has finished. New programmes for contact tracing need effective surveillance systems to enable appropriate follow-up and outcome evaluation. The Novartis Foundation and Netherlands Leprosy Relief (NLR) are currently developing and implementing a large international programme to demonstrate the feasibility, acceptability, cost-effectiveness and real-world efficacy of PEP as a strategy to interrupt leprosy transmission, in six pilot projects in Asia, Africa and South America. These new pilot projects will be developed together with the local health authorities, healthcare workers, communities and patients, in order to create local ownership from the outset. The pilots should aim to be scalable and sustainable, and should therefore include an objective outcome assessment. Local ownership ensures that locally appropriate language and definitions of contacts are used in each of the pilots. A test to identify subclinical disease and distinguish M. leprae exposure from infection would facilitate early and appropriate therapy (with PEP or MDT). The identification and validation of new, sensitive biomarkers for M. leprae infection and exposure may allow better targeting of PEP to those contacts at highest risk of developing leprosy.


Asunto(s)
Trazado de Contacto , Lepra/prevención & control , Femenino , Humanos , Leprostáticos/uso terapéutico , Lepra/diagnóstico , Lepra/tratamiento farmacológico , Lepra/epidemiología , Persona de Mediana Edad , Proyectos Piloto
4.
Eur Respir J ; 41(1): 25-30, 2013 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-22556024

RESUMEN

This study aimed to assess the effects of biomass smoke exposure on lung function in a Nepalese population, addressing some of the methodological issues seen in previous studies. We carried out a cross-sectional study of adults in a population exposed to biomass smoke and a non-exposed population in Nepal. Questionnaire and lung function data were acquired along with direct measures of indoor and outdoor air quality. Ventilatory function (forced expiratory volume in 1 s (FEV(1)), forced vital capacity (FVC) and forced expiratory flow at 25-75% of FVC) was significantly reduced in the population using biomass across all age groups compared to the non-biomass-using population, even in the youngest (16-25 yrs) age group (mean FEV(1) (95% CI) 2.65 (2.57-2.73) versus 2.83 (2.74-2.91) L; p=0.004). Airflow obstruction was twice as common among biomass users compared with liquefied petroleum gas users (8.1% versus 3.6%; p<0.001), with similar patterns for males (7.4% versus 3.3%; p=0.022) and females (10.8% versus 3.8%; p<0.001), based on the lower limit of normal. Smoking was a major risk factor for airflow obstruction, but biomass exposure added to the risk. Exposure to biomass smoke is associated with deficits in lung function, an effect that can be detected as early as the late teenage years. Biomass smoke and cigarette smoke have additive adverse effects on airflow obstruction in this setting.


Asunto(s)
Biomasa , Volumen Espiratorio Forzado , Pulmón/fisiopatología , Humo/efectos adversos , Capacidad Vital , Adulto , Estudios Transversales , Femenino , Humanos , Masculino , Nepal
5.
Fam Pract ; 30(3): 282-9, 2013 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-23248235

RESUMEN

BACKGROUND: Much of the emphasis for primary care management of chronic kidney disease (CKD) has focused on cardiovascular risk; however, many patients die of other causes. Aim. In order to guide future primary care management of CKD, we report the causes of death from a large U.K. CKD cohort linked to health care administrative data. DESIGN, SETTING AND METHODS: The Grampian Laboratory Outcomes Mortality and Morbidity Study (GLOMMS-1) is a community cohort of people with established CKD, identified in 2003 and followed up for 6 years. Causes of death were available from death certificates. The relative likelihood of different causes of death was compared to the general population. RESULTS: When standardized for age and sex, mortality was 4.7 (95% confidence interval 4.5-4.9) times higher in GLOMMS-1 than the general population. Non-cardiovascular diseases accounted for 1076 (50.9%) of deaths, 3.7 times more common than in the age- and sex-matched general population. For those with stages 3 and 4 CKD, without cardiovascular disease at baseline, a non-cardiovascular cause accounted for almost two-thirds of deaths. In those 75 years and older, dementia and falls were among the main non-cardiovascular causes of death. CONCLUSIONS: Mortality in those with CKD is high, with non-cardiovascular diseases accounting for more than half of all deaths. While there is evidence that intervention may benefit those at risk of cardiovascular death, most of the non-cardiovascular causes of death identified were not readily amenable to prevention. A mechanism to identify which patients may benefit from intervention to prevent cardiovascular disease or renal disease progression is needed.


Asunto(s)
Enfermedades Cardiovasculares/mortalidad , Atención Primaria de Salud , Insuficiencia Renal Crónica/mortalidad , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Causas de Muerte , Estudios de Cohortes , Femenino , Estudios de Seguimiento , Tasa de Filtración Glomerular , Humanos , Masculino , Persona de Mediana Edad , Medicina Preventiva , Reino Unido/epidemiología
6.
Lepr Rev ; 83(3): 282-91, 2012 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-23356029

RESUMEN

INTRODUCTION: Adherence with multidrug therapy (MDT) in the treatment of leprosy is important to minimise the risk of relapse and avoid the emergence of drug resistance. Adherence is defined as the extent to which the patient's behaviour matches recommendations from the prescriber. This paper reviews the methods for assessing adherence with MDT in leprosy, and community approaches to improving adherence based on evidence from the treatment of tuberculosis (TB) and HIV, as well as leprosy. METHODS: To identify and summarise the available literature regarding the assessment of treatment regularity in leprosy, a literature search of MEDLINE was conducted using the following search terms: 'leprosy' AND ('adherence' OR 'compliance' OR 'concordance'). To identify evidence for interventions that have involved community members in HIV, TB or leprosy adherence support, a literature search was conducted using the key terms and medical subject headings 'treatment or adherence' 'community,' 'HIV, TB or Leprosy' and 'low and middle income countries' combined using Boolean operators. RESULTS: Leprosy programmes routinely use defaulting and treatment completion as proxy measures of adherence as recommended by the WHO global strategy. However, a number of other methods have been used to assess adherence including questionnaires, pill counts, as well as direct measures based on testing urine for the presence of dapsone. Direct methods were extensively used during the dapsone mono-therapy era but there is little evidence of their use in MDT. Use of multiple methods of assessing adherence improves the accuracy and reliability of the results. Community activities in TB and HIV such as variants of treatment observation, and/or wider programmes of counselling or direct support to the patient or their family or to increase community or social support were shown to improve treatment outcomes. Outcomes evaluated included treatment default and completion, clinical indicators, and adherence (pill-count, self report). CONCLUSIONS: Adherence is very important in leprosy and regular assessment of medication adherence together with constructive feedback and counselling of patients is likely to be beneficial. Leprosy programme can learn from adherence support interventions developed by both TB and HIV programmes.


Asunto(s)
Leprostáticos/administración & dosificación , Lepra/tratamiento farmacológico , Cumplimiento de la Medicación , Quimioterapia Combinada , Humanos , Evaluación de Resultado en la Atención de Salud , Prevención Secundaria
7.
BMC Public Health ; 12: 640, 2012 Aug 10.
Artículo en Inglés | MEDLINE | ID: mdl-22892291

RESUMEN

BACKGROUND: Young people (18-25 years) during the adolescence/adulthood transition are vulnerable to weight gain and notoriously hard to reach. Despite increased levels of overweight/obesity in this age group, physical activity behaviour, a major contributor to obesity, is poorly understood. The purpose of this study was to explore physical activity (PA) behaviour among 18-25 year olds with influential factors including attitudes, motivators and barriers. METHODS: An explanatory mixed method study design, based on health Behaviour Change Theories was used. Those at university/college and in the community, including those Not in Education, Employment or Training (NEET) were included. An initial self reported quantitative questionnaire survey underpinned by the Theory of Planned Behaviour and Social Cognitive Theory was conducted. 1313 questionnaires were analysed. Results from this were incorporated into a qualitative phase also grounded in these theories. Seven focus groups were conducted among similar young people, varying in education and socioeconomic status. Exploratory univariate analysis was followed by multi staged modelling to analyse the quantitative data. 'Framework Analysis' was used to analyse the focus groups. RESULTS: Only 28% of 18-25 year olds achieved recommended levels of PA which decreased with age. Self-reported overweight/obesity prevalence was 22%, increasing with age, particularly in males. Based on the statistical modelling, positive attitudes toward PA were strong predictors of physical activity associated with being physically active and less sedentary. However, strong intentions to do exercise, was not associated with actual behaviour. Interactive discussions through focus groups unravelled attitudes and barriers influencing PA behaviour. Doing PA to feel good and to enjoy themselves was more important for young people than the common assumptions of 'winning' and 'pleasing others'. Further this age group saw traditional health promotion messages as 'empty' and 'fear of their future health' was not a motivating factor to change current behaviour. CONCLUSION: 18-25 year olds are a difficult group to reach and have low levels of PA. Factors such as, 'enjoyment', 'appearance 'and 'feeling good' were deemed important by this specific age group. A targeted intervention incorporating these crucial elements should be developed to improve and sustain PA levels.


Asunto(s)
Actitud Frente a la Salud , Ejercicio Físico/psicología , Intención , Adolescente , Adulto , Femenino , Grupos Focales , Humanos , Modelos Logísticos , Masculino , Conducta de Reducción del Riesgo , Escocia , Encuestas y Cuestionarios , Adulto Joven
8.
Bull World Health Organ ; 89(7): 487-95, 2011 Jul 01.
Artículo en Inglés | MEDLINE | ID: mdl-21734762

RESUMEN

OBJECTIVE: To assess different countries' chances of attaining the 2011-2015 global leprosy target set by the World Health Organization (WHO) and to assess the strategy's effect on the prevalence of grade 2 disability (G2D). METHODS: Trends in G2D rate were analysed for Brazil, China, India and Thailand and figures were compared with the WHO target: a 35% decrease by 2015 relative to the 2010 baseline. To estimate the prevalence of G2D in 2015 and 2035 for each country three assumptions were made: (i) maintenance of the current trend; (ii) attainment of the WHO target, and (iii) reduction of G2D by 50% every 5 years relative to 2010. FINDINGS: Since 1995, the G2D rate has decreased every 5 years in Brazil, China, India and Thailand by 12.7% (95% confidence interval, CI: 6.6-18.3), 7.7% (95% CI: 1.1-12.8), 53.7% (95% CI: 38.1-65.4) and 35.9% (95% CI: 23.4-46.3), respectively. New cases with G2D detected after 2010 will contribute 15% (Brazil), 3% (China), 2.5% (India) and 4% (Thailand) to the total prevalence of G2D in 2015. If no policies are changed, between 2015 and 2035, the prevalence of G2D will decrease by more than half in China, India and Thailand, and by 16% in Brazil. CONCLUSION: The implications of attaining the WHO target are different for each country and using indicators other than G2D prevalence will help monitor progress. The strategy will not immediately reduce the prevalence of G2D, but if it is applied consistently over the next 25 years, its long-term effect can be substantial.


Asunto(s)
Costo de Enfermedad , Personas con Discapacidad/clasificación , Lepra/fisiopatología , Organización Mundial de la Salud , Brasil/epidemiología , China/epidemiología , Estudios Transversales , Bases de Datos como Asunto , Humanos , India/epidemiología , Lepra/epidemiología , Objetivos Organizacionales , Tailandia/epidemiología
9.
BMC Womens Health ; 11: 42, 2011 Sep 26.
Artículo en Inglés | MEDLINE | ID: mdl-21943102

RESUMEN

BACKGROUND: Heterosexual contact is the most common mode of transmission of sexually transmitted infections (STIs) including Human Immunodeficiency Virus (HIV) in Nepal and it is largely linked to sex work. We assessed the non-use of condoms in sex work with intimate sex partners by female sex workers (FSWs) and the associated self-efficacy to inform the planning of STI/HIV prevention programmes in the general population. METHODS: This paper is based on a qualitative study of Female Sex Workers (FSWs) in Nepal. In-depth interviews and extended field observation were conducted with 15 FSWs in order to explore issues of safe sex and risk management in relation to their work place, health and individual behaviours. RESULTS: The main risk factor identified for the non-use of condoms with intimate partners and regular clients was low self efficacy. Non-use of condoms with husband and boyfriends placed them at risk of STIs including HIV. In addition to intimidation and violence from the police, clients and intimate partners, clients' resistance and lack of negotiation capacity were identified as barriers in using condoms by the FSWs. CONCLUSION: This study sheds light on the live and work of FSWs in Nepal. This information is relevant for both the Government of Nepal and Non Governmental Organisations (NGO) to help improve the position of FSWs in the community, their general well-being and to reduce their risks at work.


Asunto(s)
Infecciones por VIH/psicología , Autoeficacia , Trabajo Sexual/psicología , Sexo Inseguro/psicología , Mujeres Trabajadoras/psicología , Adulto , Condones/estadística & datos numéricos , Miedo , Femenino , Infecciones por VIH/prevención & control , Humanos , Negociación , Nepal , Medición de Riesgo , Factores de Riesgo , Asunción de Riesgos , Trabajo Sexual/estadística & datos numéricos , Parejas Sexuales , Enfermedades de Transmisión Sexual/psicología , Sexo Inseguro/estadística & datos numéricos , Adulto Joven
10.
BMC Health Serv Res ; 11: 79, 2011 Apr 18.
Artículo en Inglés | MEDLINE | ID: mdl-21501473

RESUMEN

BACKGROUND: The Nepal Demographic Health Survey (NDHS) in 2006 showed that more than half (56%) of the women with sexually transmitted infections (STIs), including HIV, in Nepal sought sexual health services. There is no such data for female sex workers (FSWs) and the limited studies on this group suggest they do not even use routine health services. This study explores FSWs use of sexual health services and the factors associated with their use and non-use of services. METHODS: This study aimed to explore the factors associated with utilisation of sexual health services by FSWs in the Kathmandu Valley of Nepal, and it used a mixed-method approach consisting of an interviewer administered questionnaire-based survey and in-depth interviews. RESULTS: The questionnaire survey, completed with 425 FSWs, showed that 90% FSWs self-reported sickness, and (30.8%) reported symptoms of STIs. A quarter (25%) of those reporting STIs had never visited any health facilities especially for sexual health services preferring to use non-governmental clinics (72%), private clinics (50%), hospital (27%) and health centres (13%). Multiple regression analysis showed that separated, married and street- based FSWs were more likely to seek health services from the clinics or hospitals. In- depth interviews with 15 FSWs revealed that FSWs perceived that personal, structural and socio-cultural barriers, such as inappropriate clinic opening hours, discrimination, the judgemental attitude of the service providers, lack of confidentiality, fear of public exposure, and higher fees for the services as barriers to their access and utilisation of sexual health services. CONCLUSION: FSWs have limited access to information and to health services, and operate under personal, structural and socio-cultural constraints. The 'education' to change individual behaviour, health worker and community perceptions, as well as the training of the health workers, is necessary.


Asunto(s)
Prejuicio , Trabajo Sexual/estadística & datos numéricos , Sexualidad/estadística & datos numéricos , Enfermedades de Transmisión Sexual/psicología , Salud de la Mujer , Adolescente , Adulto , Femenino , Accesibilidad a los Servicios de Salud , Necesidades y Demandas de Servicios de Salud , Encuestas Epidemiológicas , Humanos , Persona de Mediana Edad , Nepal/epidemiología , Organizaciones , Prevalencia , Trabajo Sexual/psicología , Sexualidad/psicología , Enfermedades de Transmisión Sexual/epidemiología , Enfermedades de Transmisión Sexual/prevención & control , Encuestas y Cuestionarios , Adulto Joven
11.
PLoS Negl Trop Dis ; 15(3): e0009279, 2021 03.
Artículo en Inglés | MEDLINE | ID: mdl-33788863

RESUMEN

BACKGROUND: The Leprosy Post-Exposure Prophylaxis (LPEP) program explored the feasibility and impact of contact tracing and the provision of single dose rifampicin (SDR) to eligible contacts of newly diagnosed leprosy patients in Brazil, India, Indonesia, Myanmar, Nepal, Sri Lanka and Tanzania. As the impact of the programme is difficult to establish in the short term, we apply mathematical modelling to predict its long-term impact on the leprosy incidence. METHODOLOGY: The individual-based model SIMCOLEP was calibrated and validated to the historic leprosy incidence data in the study areas. For each area, we assessed two scenarios: 1) continuation of existing routine activities as in 2014; and 2) routine activities combined with LPEP starting in 2015. The number of contacts per index patient screened varied from 1 to 36 between areas. Projections were made until 2040. PRINCIPAL FINDINGS: In all areas, the LPEP program increased the number of detected cases in the first year(s) of the programme as compared to the routine programme, followed by a faster reduction afterwards with increasing benefit over time. LPEP could accelerate the reduction of the leprosy incidence by up to six years as compared to the routine programme. The impact of LPEP varied by area due to differences in the number of contacts per index patient included and differences in leprosy epidemiology and routine control programme. CONCLUSIONS: The LPEP program contributes significantly to the reduction of the leprosy incidence and could potentially accelerate the interruption of transmission. It would be advisable to include contact tracing/screening and SDR in routine leprosy programmes.


Asunto(s)
Trazado de Contacto/métodos , Lepra/epidemiología , Lepra/prevención & control , Tamizaje Masivo/métodos , Prevención Primaria/métodos , Brasil , Humanos , India , Indonesia/epidemiología , Leprostáticos/uso terapéutico , Mianmar/epidemiología , Nepal/epidemiología , Profilaxis Posexposición/métodos , Rifampin/uso terapéutico , Sri Lanka/epidemiología , Tanzanía/epidemiología
12.
Lancet Glob Health ; 9(1): e81-e90, 2021 01.
Artículo en Inglés | MEDLINE | ID: mdl-33129378

RESUMEN

BACKGROUND: Innovative approaches are required for leprosy control to reduce cases and curb transmission of Mycobacterium leprae. Early case detection, contact screening, and chemoprophylaxis are the most promising tools. We aimed to generate evidence on the feasibility of integrating contact tracing and administration of single-dose rifampicin (SDR) into routine leprosy control activities. METHODS: The leprosy post-exposure prophylaxis (LPEP) programme was an international, multicentre feasibility study implemented within the leprosy control programmes of Brazil, India, Indonesia, Myanmar, Nepal, Sri Lanka, and Tanzania. LPEP explored the feasibility of combining three key interventions: systematically tracing contacts of individuals newly diagnosed with leprosy; screening the traced contacts for leprosy; and administering SDR to eligible contacts. Outcomes were assessed in terms of number of contacts traced, screened, and SDR administration rates. FINDINGS: Between Jan 1, 2015, and Aug 1, 2019, LPEP enrolled 9170 index patients and listed 179 769 contacts, of whom 174 782 (97·2%) were successfully traced and screened. Of those screened, 22 854 (13·1%) were excluded from SDR mainly because of health reasons and age. Among those excluded, 810 were confirmed as new patients (46 per 10 000 contacts screened). Among the eligible screened contacts, 1182 (0·7%) refused prophylactic treatment with SDR. Overall, SDR was administered to 151 928 (86·9%) screened contacts. No serious adverse events were reported. INTERPRETATION: Post-exposure prophylaxis with SDR is safe; can be integrated into different leprosy control programmes with minimal additional efforts once contact tracing has been established; and is generally well accepted by index patients, their contacts, and health-care workers. The programme has also invigorated local leprosy control through the availability of a prophylactic intervention; therefore, we recommend rolling out SDR in all settings where contact tracing and screening have been established. FUNDING: Novartis Foundation.


Asunto(s)
Leprostáticos/uso terapéutico , Lepra/prevención & control , Profilaxis Posexposición/métodos , Salud Pública/métodos , Rifampin/uso terapéutico , Estudios de Factibilidad , Humanos , Medicina de Precisión/métodos
13.
Thorax ; 65(3): 221-8, 2010 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-20335290

RESUMEN

BACKGROUND: Over half the world is exposed daily to the smoke from combustion of solid fuels. Chronic obstructive pulmonary disease (COPD) is one of the main contributors to the global burden of disease and can be caused by biomass smoke exposure. However, studies of biomass exposure and COPD show a wide range of effect sizes. The aim of this systematic review was to quantify the impact of biomass smoke on the development of COPD and define reasons for differences in the reported effect sizes. METHODS: A systematic review was conducted of studies with sufficient statistical power to calculate the health risk of COPD from the use of solid fuel, which followed standardised criteria for the diagnosis of COPD and which dealt with confounding factors. The results were pooled by fuel type and country to produce summary estimates using a random effects model. Publication bias was also estimated. RESULTS: There were positive associations between the use of solid fuels and COPD (OR=2.80, 95% CI 1.85 to 4.0) and chronic bronchitis (OR=2.32, 95% CI 1.92 to 2.80). Pooled estimates for different types of fuel show that exposure to wood smoke while performing domestic work presents a greater risk of development of COPD and chronic bronchitis than other fuels. CONCLUSION: Despite heterogeneity across the selected studies, exposure to solid fuel smoke is consistently associated with COPD and chronic bronchitis. Efforts should be made to reduce exposure to solid fuel by using either cleaner fuel or relatively cleaner technology while performing domestic work.


Asunto(s)
Contaminación del Aire Interior/efectos adversos , Bronquitis Crónica/etiología , Combustibles Fósiles/toxicidad , Enfermedad Pulmonar Obstructiva Crónica/etiología , Biomasa , Humanos , Sesgo de Publicación , Proyectos de Investigación , Factores de Riesgo , Humo/efectos adversos
14.
BMC Public Health ; 10: 17, 2010 Jan 15.
Artículo en Inglés | MEDLINE | ID: mdl-20078858

RESUMEN

BACKGROUND: There is considerable expertise in the obesity field in identifying, appraising, and synthesising evidence to develop guidelines and recommendations for policy and practice. The recommendations, while based on evidence, are not formulated in a way that readily leads to implementation. This paper analyses the recent UK recommendations on obesity using a proposed implementation framework. METHODS: Two bibliographic databases (Medline and Embase) and various health related and government websites were systematically searched for obesity recommendations published between 1996 and 2007. All the documents published on recommendations for either prevention or treatment of obesity in the UK were assessed. A proposed implementation framework was developed for the purpose of this review. All the UK recommendations were critically appraised and results summarised according to the criteria used within the framework. Cross-country applicability of the proposed framework was assessed using the Swedish policy recommendations on obesity. RESULTS: Most recommendations on obesity while demonstrating their basis in evidence, fail to meet the implementation standards. They tend to be non-specific in identifying who is responsible for implementation and monitoring, and often no timescale is indicated. The costs of implementation are rarely estimated and those responsible for such funding are not specified. There are some notable exemptions to the general pattern emanating from more operational and locally based groups. The Swedish policy details 79 proposals with responsibility clearly identified and costs are presented for 20 of them. This policy satisfied most of the framework criteria but failed to give details on evaluation, monitoring and the timeframe for implementation. CONCLUSIONS: Public health has developed skills in appraising evidence and formulating recommendations based on appropriate evidence but these are often not implemented. Different skills are required to translate these recommendations into actions. Public health clearly needs to develop the implementation skills to a level comparable to the ability to synthesise evidence.


Asunto(s)
Implementación de Plan de Salud , Promoción de la Salud/métodos , Obesidad/prevención & control , Bases de Datos Bibliográficas , Humanos , Obesidad/terapia , Salud Pública , Reino Unido
15.
Infect Dis Poverty ; 9(1): 156, 2020 Nov 12.
Artículo en Inglés | MEDLINE | ID: mdl-33183339

RESUMEN

BACKGROUND: Leprosy control achieved dramatic success in the 1980s-1990s with the implementation of short course multidrug therapy, which reduced the global prevalence of leprosy to less than 1 in 10 000 population. However, a period of relative stagnation in leprosy control followed this achievement, and only limited further declines in the global number of new cases reported have been achieved over the past decade. MAIN TEXT: In 2016, major stakeholders called for the development of an innovative and comprehensive leprosy strategy aimed at reducing the incidence of leprosy, lowering the burden of disability and discrimination, and interrupting transmission. This led to the establishment of the Global Partnership for Zero Leprosy (GPZL) in 2018, with partners aligned around a shared Action Framework committed to achieving the WHO targets by 2030 through national leprosy program capacity-building, resource mobilisation and an enabling research agenda. GPZL convened over 140 experts from more than 20 countries to develop a research agenda to achieve zero leprosy. The result is a detailed research agenda focusing on diagnostics, mapping, digital technology and innovation, disability, epidemiological modelling and investment case, implementation research, stigma, post exposure prophylaxis and transmission, and vaccines. This research agenda is aligned with the research priorities identified by other stakeholders. CONCLUSIONS: Developing and achieving consensus on the research agenda for zero leprosy is a significant step forward for the leprosy community. In a next step, research programmes must be developed, with individual components of the research agenda requiring distinct expertise, varying in resource needs, and operating over different timescales. Moving toward zero leprosy now requires partner alignment and new investments at all stages of the research process, from discovery to implementation.


Asunto(s)
Investigación Biomédica , Lepra/prevención & control , Vacunas Bacterianas/uso terapéutico , Quimioterapia Combinada , Humanos , Incidencia , Leprostáticos/uso terapéutico , Lepra/epidemiología , Lepra/terapia , Mycobacterium leprae/inmunología , Profilaxis Posexposición , Proyectos de Investigación
16.
Med Teach ; 31(10): 895-902, 2009 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-19877861

RESUMEN

BACKGROUND: Student Selected Components (SSCs) are an established feature of UK undergraduate medical curricula that offer students choice. They represent a large investment in time and resources. Although programmes vary between Schools, the major learning objectives remain broadly similar. Providing students engage fully with the activity, the final learning outcomes should also be comparable. However, engaging effectively and purposefully with such programmes may not be a clear and straightforward process for students. AIM: To present the challenges and solutions to inform students how to derive the greatest benefit from the learning activities in their SSC programmes. METHODS: Synthesis of the accumulated experience over more than 10 years of developing, running and evaluating SSCs by the Directors of SSCs in five Scottish Medical Schools, combined with analysis of course evaluation and student feedback. RESULTS: Consensus defined 12 tips aimed at improving the approach taken by students to their SSCs, and to provide a structure to maximise their final learning outcomes. CONCLUSION: SSC programmes provide diverse opportunities for students to develop and expand their learning. With increasing emphasis being placed upon student assessment to judge a wide range of professional skills and standards into foundation and specialist training, much greater importance is now being given to SSCs as an opportunity for personal, professional and academic developments. However, it is important that this is performed in a purposeful manner to maximise this opportunity. These 12 tips provide guidance to students on how they can maximise the opportunity presented to them by SSCs.


Asunto(s)
Curriculum , Educación Médica/organización & administración , Aprendizaje , Estudiantes de Medicina , Comunicación , Evaluación Educacional , Humanos , Modelos Educacionales , Autonomía Personal , Administración del Tiempo
17.
Lepr Rev ; 79(4): 361-71, 2008 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-19274983

RESUMEN

OBJECTIVE: Corticosteroids are commonly used for treating nerve damage in leprosy. We assessed the effectiveness of corticosteroids for treating nerve damage due to leprosy. METHODS: A systematic search was undertaken to identify randomised controlled trials (RCTs) comparing corticosteroids with placebo or with no treatment. Two authors independently assessed quality and extracted data. Where it was not possible to perform a meta-analysis, the data for each trial was summarised. RESULTS: Three RCTs involving 513 people were found. Two trials compared prednisolone with placebo. One trial treated mild sensory impairment of less than 6 months duration and the other trial treated nerve function impairment of 6 to 24 months duration. Both trials examined nerve function improvement 12 months from the start of treatment, but found no significant difference between the two groups. The third trial compared three corticosteroid regimens for severe type 1 reactions. After 12 months, a significantly higher proportion of individuals on a 3 month course required extra corticosteroids compared to the groups with a high-dose and low-dose regimen of 5 months duration. Diabetes and peptic or infected ulcers were not significantly more often reported in the corticosteroid compared to the placebo group. CONCLUSIONS: Evidence from RCTs does not show a significant long-term effect for either long-standing nerve function impairment or mild sensory impairment. A 5 month corticosteroid regimen was significantly more beneficial than a 3 month corticosteroid regimen. Further RCTs are needed to establish the effectiveness and optimal regimens of corticosteroids and to examine new therapies.


Asunto(s)
Glucocorticoides/uso terapéutico , Lepra/tratamiento farmacológico , Enfermedades del Sistema Nervioso Periférico/tratamiento farmacológico , Trastornos Somatosensoriales/tratamiento farmacológico , Humanos , Lepra/complicaciones , Enfermedades del Sistema Nervioso Periférico/diagnóstico , Enfermedades del Sistema Nervioso Periférico/etiología , Prednisolona/uso terapéutico , Ensayos Clínicos Controlados Aleatorios como Asunto , Trastornos Somatosensoriales/diagnóstico , Trastornos Somatosensoriales/etiología , Resultado del Tratamiento
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