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1.
Artigo em Inglês | MEDLINE | ID: mdl-37609737

RESUMO

Background Increasing urbanisation has led to the occurrence of cutaneous leishmaniasis (CL) in new areas, which was otherwise localised to endemic areas. Healthcare workers should be made aware of this entity to ensure clinical suspicion of CL and investigations needed to confirm CL. The article describes patients seen at a tertiary hospital in Delhi. Aims To establish the utility of the CL Detect Rapid test as a diagnostic tool and the efficacy of Liposomal Amphotericin B (LAmB) for the complete cure of CL patients. Methods Data of patients of CL (n = 16) was retrospectively analysed concerning diagnosis and treatment. Diagnosis rested on histopathology, real-time PCR, and CL Detect Rapid Test. Speciation of the parasite was based on the Internal transcribed spacer-I gene. Patients were treated with LAmB (i.v., 5 mg/kg up to three doses, five days apart). Results A positivity of 81.3% (95%CI, 54.4-96) was observed for CL Detect Rapid test in comparison with 100% (95%CI, 79.4-100.0) for real-time PCR and 43.8% (95%CI, 19.8-70.1) for microscopy/histopathological examination. L. tropica was the infective species in all cases. All the patients treated with LAmB responded to treatment, and 9/10 patients demonstrated complete regression of lesions, while one was lost to follow-up. Limitations It is a retrospective study, and the data includes only confirmed cases of CL at a single centre. Conclusion This study highlights the utility of CL Detect as a promising diagnostic tool and the efficacy of LAmB for the complete cure of CL.


Assuntos
Anfotericina B , Antiprotozoários , Leishmaniose Cutânea , Humanos , Estudos Retrospectivos , Antiprotozoários/uso terapêutico , Centros de Atenção Terciária , Leishmaniose Cutânea/diagnóstico , Leishmaniose Cutânea/tratamento farmacológico , Leishmaniose Cutânea/epidemiologia , Índia/epidemiologia
2.
PLoS Negl Trop Dis ; 17(2): e0011138, 2023 02.
Artigo em Inglês | MEDLINE | ID: mdl-36758102

RESUMO

BACKGROUND: In Nepal, the burden of post kala-azar dermal leishmaniasis (PKDL) is not known since there is no active case detection of PKDL by the national programme. PKDL patients could pose a challenge to sustain visceral leishmaniasis (VL) elimination. The objective of this study was to determine the prevalence of PKDL and assess PKDL patients' knowledge on VL and PKDL, and stigma associated with PKDL. METHODOLOGY/PRINCIPAL FINDINGS: Household surveys were conducted in 98 VL endemic villages of five districts that reported the highest number of VL cases within 2018-2021. A total of 6,821 households with 40373 individuals were screened for PKDL. Cases with skin lesions were referred to hospitals and examined by dermatologists. Suspected PKDL cases were tested with rK39 and smear microscopy from skin lesions. An integrated diagnostic approach was implemented in two hospitals with a focus on management of leprosy cases where cases with non-leprosy skin lesions were tested for PKDL with rK39. Confirmed PKDL patients were interviewed to assess knowledge and stigma associated with PKDL, using explanatory model interview catalogue (EMIC) with maximum score of 36. Among 147 cases with skin lesions in the survey, 9 (6.12%) were confirmed as PKDL by dermatologists at the hospital. The prevalence of PKDL was 2.23 per 10,000 population. Among these 9 PKDL cases, 5 had a past history of VL and 4 did not. PKDL cases without a past history of VL were detected among the "new foci", Surkhet but none in Palpa. None of the cases negative for leprosy were positive for PKDL. There was very limited knowledge of PKDL and VL among PKDL cases. PKDL patients suffered to some degree from social and psychological stigma (mean ± s.d. score = 17.89 ± 12.84). CONCLUSIONS/SIGNIFICANCE: Strengthening the programme in PKDL case detection and management would probably contribute to sustenance of VL elimination. Awareness raising activities to promote knowledge and reduce social stigma should be conducted in VL endemic areas.


Assuntos
Leishmaniose Cutânea , Leishmaniose Visceral , Hanseníase , Humanos , Leishmaniose Visceral/epidemiologia , Prevalência , Nepal/epidemiologia , Leishmaniose Cutânea/epidemiologia , Hanseníase/epidemiologia , Índia/epidemiologia
3.
Artigo em Inglês | MEDLINE | ID: mdl-35674635

RESUMO

This cross-sectional population-based study compared clinical features of leprosy and American tegumentary leishmaniasis (ATL) in patients diagnosed with both diseases (n=414) and in those diagnosed with only leprosy (n=27,790) or only ATL (n=24,357) in Mato Grosso State, which is a hyperendemic area for both diseases in Midwest Brazil. All new cases of leprosy and ATL reported in the area from 2008 to 2017 were included. Patients diagnosed with both diseases were identified by a probabilistic linkage procedure applied to leprosy and ATL databases of the national reporting system. The distribution of the frequency of clinical features between groups was compared by the chi-square test, followed by a multivariate logistic regression. Patients diagnosed with both leprosy and ATL presented higher odds of having nerve damage (OR: 1.34; 95% CI: 1.09-1.66) and leprosy reactions (OR: 1.35; 95% CI: 1.04-1.76) compared to patients diagnosed only with leprosy. Mucocutaneous leishmaniasis (OR: 2.29; 95% CI: 1.74-3.00) was more frequent among patients with both diagnoses when compared to patients who only had ATL. In conclusion, patients diagnosed with both leprosy and ATL present more severe clinical features of such diseases. Our data can be useful for designing health policies aimed at timely and integrated management of leprosy and ATL in co-endemic areas.


Assuntos
Leishmaniose Cutânea , Leishmaniose Mucocutânea , Hanseníase , Brasil/epidemiologia , Estudos Transversais , Doenças Endêmicas , Humanos , Leishmaniose Cutânea/complicações , Leishmaniose Cutânea/diagnóstico , Leishmaniose Cutânea/epidemiologia , Leishmaniose Mucocutânea/epidemiologia , Hanseníase/complicações , Hanseníase/epidemiologia
4.
Acta Parasitol ; 67(2): 809-819, 2022 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-35113340

RESUMO

INTRODUCTION: Neglected tropical diseases (NTDs) are highly endemic and distributed within the Middle East and North Africa (MENA) region, affecting an estimated 65 million people. Lebanon suffers from several NTDs as they are either endemic in the country or imported via expats residing in endemic regions, refugees, and foreign labor force. The Syrian crisis and the displacement of refugees to Lebanon have made the country the largest host of refugees per capita right after the Syrian crisis in 2011, peaking in the year of 2013. Additionally, foreign labor in Lebanon come from different countries in Africa and Asia that are endemic with certain NTDs. The Lebanese diaspora is approximately twice the number of those residing in the country and is distributed throughout the continents carrying the risk of importing new NTDs. MATERIALS AND METHODS: A descriptive study about the prevalence of NTDs in Lebanon, their distribution, and factors contributing to spread was performed. The Lebanese Ministry of Public Health (LMPH) database regarding reportable transmissible diseases was reviewed for reportable NTDs between 2002 and 2020 in relation to age, gender, prevalence, and geographical distribution. The medical literature was searched using several engines looking for all reports about NTDs in Lebanon, those relevant to regions hosting Lebanese diaspora, and countries where the refugees and migrant workers came from. RESULTS: Only leishmaniasis, leprosy, echinococcosis, schistosomiasis, and rabies are mandatorily reportable NTDs by the LMPH. Additionally, case reports about fasciolosis, ascaridiosis, and Dengue were reported from Lebanon. The presence of the Syrian refugees in the country affected the prevalence of leishmaniasis and rabies. The most prevalent NTD in Lebanon is cutaneous leishmaniasis. The Lebanese diaspora reside mainly in South America, Africa, and in some Arab states known to be endemic with certain NTDs. CONCLUSION: Little information is known about NTDs in Lebanon. The country is at an increased risk of experiencing several new NTDs due to refugee influx, foreign labor, economic crisis, and ever-growing number of Lebanese seeking work opportunities abroad. More information is needed to assess the true burden of NTDs in Lebanon and the future steps to contain and mitigate their effects.


Assuntos
Leishmaniose Cutânea , Raiva , Refugiados , Humanos , Líbano/epidemiologia , Leishmaniose Cutânea/epidemiologia , Doenças Negligenciadas/epidemiologia
5.
PLoS Negl Trop Dis ; 15(12): e0010035, 2021 12.
Artigo em Inglês | MEDLINE | ID: mdl-34898634

RESUMO

BACKGROUND: Leprosy and cutaneous leishmaniasis (CL) are neglected tropical diseases (NTDs) affecting the skin. Their control is challenging but the integration of skin NTDs control programs is recommended to improve timely detection and treatment. However, little is known about the occurrence of leprosy and CL in the same individuals, and what are the characteristics of such patients. This study aimed to identify and characterize patients diagnosed with both leprosy and CL (i.e., outcome) in the hyperendemic state of Mato Grosso, Brazil. Also, we investigated the demographic risk factors associated with the period between the diagnosis of both diseases. METHODOLOGY/PRINCIPAL FINDINGS: A retrospective cohort study was conducted with patients diagnosed between 2008 and 2017. From the leprosy (n = 28,204) and CL (n = 24,771) databases of the national reporting system, 414 (0.8%; 414/52,561) patients presenting both diseases were identified through a probabilistic linkage procedure. This observed number was much higher than the number of patients that would be expected by chance alone (n = 22). The spatial distribution of patients presenting the outcome was concentrated in the North and Northeast mesoregions of the state. Through survival analysis, we detected that the probability of a patient developing both diseases increased over time from 0.2% in the first year to 1.0% within seven years. Further, using a Cox model we identified male sex (HR: 2.3; 95% CI: 1.7-2.9) and low schooling level (HR: 1.5; 95% CI: 1.2-1.9) as positively associated with the outcome. Furthermore, the hazard of developing the outcome was higher among individuals aged 40-55 years. CONCLUSIONS/SIGNIFICANCE: Leprosy and CL are affecting the same individuals in the area. Integration of control policies for both diseases will help to efficiently cover such patients. Measures should be focused on timely diagnosis by following-up patients diagnosed with CL, active case detection, and training of health professionals.


Assuntos
Coinfecção/epidemiologia , Leishmaniose Cutânea/epidemiologia , Hanseníase/epidemiologia , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Brasil/epidemiologia , Criança , Pré-Escolar , Coinfecção/diagnóstico , Doenças Endêmicas , Feminino , Humanos , Leishmaniose Cutânea/diagnóstico , Hanseníase/diagnóstico , Masculino , Pessoa de Meia-Idade , Modelos de Riscos Proporcionais , Estudos Retrospectivos , Fatores de Risco , Adulto Jovem
7.
Clin Dermatol ; 38(5): 547-554, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-33280802

RESUMO

Dermatology in French-speaking African countries is facing many challenges. Dermatology societies, if they exist, are relatively young and have limited financial resources to provide regular training opportunities for their members and those in training. In several sub-Saharan nations, the small number of dermatologists is truly alarming with the prevalence of such major skin diseases as cutaneous leishmaniasis, AIDS, mycetoma, leprosy, and the consequences of skin bleaching procedures, reaching catastrophic figures.


Assuntos
Dermatologistas/estatística & dados numéricos , Dermatologia/organização & administração , Educação Médica/economia , Educação Médica/organização & administração , Sociedades Médicas/organização & administração , Síndrome da Imunodeficiência Adquirida/epidemiologia , Síndrome da Imunodeficiência Adquirida/prevenção & controle , Recursos em Saúde/economia , Humanos , Leishmaniose Cutânea/epidemiologia , Leishmaniose Cutânea/prevenção & controle , Hanseníase/epidemiologia , Hanseníase/prevenção & controle , Micetoma/epidemiologia , Micetoma/prevenção & controle , Prevalência , Tunísia/epidemiologia
8.
J Infect Dev Ctries ; 14(6.1): 16S-21S, 2020 06 29.
Artigo em Inglês | MEDLINE | ID: mdl-32614791

RESUMO

INTRODUCTION: The majority of neglected tropical diseases (NTDs) have established primary skin manifestations or associated clinical feature. Skin NTDs often result in physical impairment and disfigurement, which can lead to disability. Skin diseases have been proposed as an entry point for integrated NTDs control. However, the magnitude and overlap of skin NTDs is poorly understood. METHODOLOGY: An institution-based cross-sectional study was done using medical records of dermatology patients between July 2017 and June 2018 in a dermatology service in Northeast Ethiopia. A total of 661 patient records were selected using simple random sampling. RESULTS: A total of 656 complete records were included in analysis. Skin NTDs constituted 17.2% (n = 113) of the overall of skin diseases. Of skin NTDS, cutaneous leishmaniasis (n = 40; 35.4%), leprosy (n = 38; 33.6%), and scabies (n = 31; 27.4%) were the most common. Additionally, there were four cases of mycetoma. Of the non NTDs, poverty-related infections such as superficial fungal (n = 118; 21.1%) and bacterial (n = 33; 5.2%) infections were also frequent. Tinea capitis was the most common superficial fungal infections. Impetigo and cellulitis were the predominant bacterial infections. CONCLUSIONS: Skin NTDsand other poverty related skin infections were common at the dermatology service. Dermatological services could act as a good entry point for integrated management of skin NTDs. Future studies should assess how different preventive strategies like contact tracing, early diagnosis and mass drug administration can be integrated.


Assuntos
Doenças Negligenciadas/diagnóstico , Assistência Centrada no Paciente/métodos , Dermatopatias/diagnóstico , Dermatopatias/epidemiologia , Adolescente , Adulto , Idoso , Estudos Transversais , Etiópia/epidemiologia , Feminino , Hospitais/estatística & dados numéricos , Humanos , Leishmaniose Cutânea/diagnóstico , Leishmaniose Cutânea/epidemiologia , Masculino , Pessoa de Meia-Idade , Doenças Negligenciadas/epidemiologia , Pobreza , Dermatopatias/microbiologia , Dermatopatias/parasitologia , Medicina Tropical , Adulto Jovem
9.
Trans R Soc Trop Med Hyg ; 114(7): 476-482, 2020 07 01.
Artigo em Inglês | MEDLINE | ID: mdl-32052043

RESUMO

BACKGROUND: Leprosy, cutaneous leishmaniasis (CL) and Chagas disease (CD) are neglected tropical diseases with a high psychosocial burden (PSB). These conditions are endemic in Norte de Santander and Arauca in Colombia, but data on the related PSB are scarce. Therefore, we assessed mental distress, participation restriction and stigma among CD, CL and leprosy patients. METHODS: In 2018, 305 leprosy, CD or CL patients were interviewed using a self-report questionnaire to assess mental distress, participation scale for participation restriction and explanatory model interview catalogue (EMIC) for stigma. Descriptive statistics and the significance of median score differences were compared. RESULTS: Fifty percent of CD patients and 49% of leprosy patients exhibited mental distress, percentages which were significantly higher than that of CL (26%). Twenty-seven percent of leprosy patients experienced participation restriction, which was lower for CL (6%) and CD (12%). Median EMIC scores were significantly higher for leprosy patients than for CD (27%) and CL (17%) patients. CONCLUSIONS: We found high levels of PSB among leprosy, CD and CL patients. Mental distress was highest among CD patients. Participation restriction and stigma were more prevalent in leprosy patients. Rural residence or lower educational status may impact PSB. Further investigation is needed to formulate evidence-based, holistic interventions.


Assuntos
Doença de Chagas , Leishmaniose Cutânea , Hanseníase , Colômbia/epidemiologia , Humanos , Leishmaniose Cutânea/epidemiologia , Hanseníase/epidemiologia , Projetos Piloto
10.
Geospat Health ; 15(2)2020 12 29.
Artigo em Inglês | MEDLINE | ID: mdl-33461274

RESUMO

Neglected tropical diseases characterized by skin lesions are highly endemic in the state of Mato Grosso, Brazil. We analyzed the spatial distribution of leprosy and Cutaneous Leishmaniasis (CL) and identified the degree of overlap in their distribution. All new cases of leprosy and CL reported between 2008 and 2017 through the national reporting system were included in the study. Scan statistics together with univariate Global and Local Moran's I were employed to identify clusters and spatial autocorrelation for each disease, with the spatial correlation between leprosy and CL measured by bivariate Global and Local Moran's I. Finally, we evaluated the demographic characteristics of the patients. The number of leprosy (N = 28,204) and CL (N = 24,771) cases in Mato Grosso and the highly smoothed detection coefficients indicated hyperendemicity and spatial distribution heterogeneity. Scan statistics demonstrated overlap of high-risk clusters for leprosy (RR = 2.0; P <0.001) and CL (RR = 4.0; P <0.001) in the North and Northeast mesoregions. Global Moran's I revealed a spatial autocorrelation for leprosy (0.228; P = 0.001) and CL (0.311; P = 0.001) and a correlation between them (0.164; P = 0.001). Both diseases were found to be concentrated in urban areas among men aged 31-60 years, of brown-skinned ethnicity and with a low educational level. Our findings indicate a need for developing integrated and spatially as well as socio-demographically targeted public health policies.


Assuntos
Leishmaniose Cutânea/epidemiologia , Hanseníase/epidemiologia , Análise Espacial , Adulto , Brasil/epidemiologia , Mapeamento Geográfico , Humanos , Masculino , Pessoa de Meia-Idade
11.
PLoS Negl Trop Dis ; 13(10): e0007798, 2019 10.
Artigo em Inglês | MEDLINE | ID: mdl-31652262

RESUMO

INTRODUCTION: Post-kala-azar dermal leishmaniasis (PKDL) is a skin manifestation that is a late clinical outcome of visceral leishmaniasis (VL). Its presentation is similar to leprosy, and the differential diagnosis is not always easy. In VL endemic rural areas of Bihar, India, both infectious diseases co-exist. This observational study aimed to determine the prevalence and distribution of both conditions in an area that had until recently been highly endemic for VL. METHODS: We conducted a door-to-door survey in an area that belongs to the Health and Demographic Surveillance Site (HDSS) of Muzaffarpur, Bihar, India. Within the HDSS we selected the villages that had reported the highest numbers of VL cases in preceding years. All consenting household members were screened for skin conditions, and minor conditions were treated on the spot. Upon completion of screening activities at the level of a few villages, a dermatology clinic ("skin camp") was conducted to which suspect leprosy and PKDL patients and other patients with skin conditions requiring expert advice were referred. We studied the association between distance from an index case of leprosy and the probability of disease in the neighborhood by fitting a Poisson model. RESULTS: We recorded a population of 33,319, out of which 25,686 (77.1%) were clinically screened. Participation in skin camps was excellent. Most common conditions were fungal infections, eczema, and scabies. There were three PKDL patients and 44 active leprosy patients, equivalent to a prevalence rate of leprosy of 17.1 per 10,000. Two out of three PKDL patients had a history of VL. Leprosy patients were widely spread across villages, but within villages, we found strong spatial clustering, with incidence rate ratios of 6.3 (95% C.I. 1.9-21.0) for household members and 3.6 (95% C.I. 1.3-10.2) for neighbors within 25 meters, with those living at more than 100 meters as the reference category. DISCUSSION: Even in this previously highly VL endemic area, PKDL is a rare condition. Nevertheless, even a single case can trigger a new VL outbreak. Leprosy is also a rare disease, but current prevalence is over 17 times the elimination threshold proclaimed by WHO. Both diseases require continued surveillance. Active case finding for leprosy can be recommended among household members and close neighbors of leprosy patients but would not be feasible for entire populations. Periodic skin camps may be a feasible and affordable alternative.


Assuntos
Leishmaniose Cutânea/epidemiologia , Leishmaniose Visceral/epidemiologia , Hanseníase/epidemiologia , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Criança , Pré-Escolar , Surtos de Doenças , Monitoramento Epidemiológico , Feminino , Humanos , Índia/epidemiologia , Lactente , Leishmaniose Cutânea/diagnóstico , Leishmaniose Visceral/diagnóstico , Hanseníase/diagnóstico , Masculino , Pessoa de Meia-Idade , Prevalência , População Rural , Pele/parasitologia , Adulto Jovem
12.
Indian J Dermatol Venereol Leprol ; 84(6): 690-695, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-30058565

RESUMO

BACKGROUND: Post kala azar dermal leishmaniasis (PKDL) is a neglected dermatosis that develops as a sequel to kala azar after apparent complete treatment. Being a non life threatening condition, patients often delay treatment thereby maintaining a reservoir of infection. The diagnosis of PKDL rests on the demonstration of the parasite in tissue smears, immune diagnosis by detection of parasite antigen or antibody in blood, or detection and quantitation of parasite DNA in tissue specimens. Sophisticated molecular tests are not only expensive but also need skilled hands and expensive equipment. To be useful, diagnostic methods must be accurate, simple and affordable for the population for which they are intended. AIMS: This study was designed to assess functionality and operational feasibility of slit-skin smear examination. METHODS: Sensitivity and specificity was evaluated by performing slit-skin smear and histo-pathological examination in 46 PKDL patients and the results were compared with the parasite load in both the slit aspirate and tissue biopsy specimens by performing quantitative Real-time PCR (Q-PCR). RESULTS: The slit-skin smear examination was more sensitive than tissue biopsy microscopy. The parasite loads significantly differed among various types of clinical lesions (P < 0.05). The threshold of parasite load for detection by SSS microscopy was 4 parasites/µl in slit aspirate and 60 parasites/µg tissue DNA in tissue biopsy while that for tissue microscopy was 63 parasites/µl and 502 parasites/µg tissue DNA respectively. As detection of Leishmania donovani bodies may be challenging in inexperienced hands, the microscopic structure of these has been detailed along with a comprehensive discussion of pre analytical, analytical and post analytical variables affecting its identification. To facilitate the diagnosis of PKDL, some scenarios have been suggested taking into consideration the clinical, epidemiological, immunological and microscopic aspects. CONCLUSION: Such evidence based medicine helps minimize intuition, systematize clinical experience and provides a diagnostic rationale as sufficient grounds for a clinical decision.


Assuntos
Leishmania donovani , Leishmaniose Cutânea/diagnóstico , Leishmaniose Visceral/diagnóstico , Biópsia/métodos , Humanos , Índia/epidemiologia , Leishmania donovani/isolamento & purificação , Leishmaniose Cutânea/epidemiologia , Leishmaniose Visceral/epidemiologia
13.
PLoS Negl Trop Dis ; 12(3): e0006125, 2018 03.
Artigo em Inglês | MEDLINE | ID: mdl-29494584

RESUMO

BACKGROUND: Tegumentary leishmaniasis (TL) is a disease of skin and/or mucosal tissues caused by Leishmania parasites. TL patients may concurrently carry other pathogens, which may influence the clinical outcome of TL. METHODOLOGY AND PRINCIPAL FINDINGS: This review focuses on the frequency of TL coinfections in human populations, interactions between Leishmania and other pathogens in animal models and human subjects, and implications of TL coinfections for clinical practice. For the purpose of this review, TL is defined as all forms of cutaneous (localised, disseminated, or diffuse) and mucocutaneous leishmaniasis. Human immunodeficiency virus (HIV) coinfection, superinfection with skin bacteria, and skin manifestations of visceral leishmaniasis are not included. We searched MEDLINE and other databases and included 73 records: 21 experimental studies in animals and 52 studies about human subjects (mainly cross-sectional and case studies). Several reports describe the frequency of Trypanosoma cruzi coinfection in TL patients in Argentina (about 41%) and the frequency of helminthiasis in TL patients in Brazil (15% to 88%). Different hypotheses have been explored about mechanisms of interaction between different microorganisms, but no clear answers emerge. Such interactions may involve innate immunity coupled with regulatory networks that affect quality and quantity of acquired immune responses. Diagnostic problems may occur when concurrent infections cause similar lesions (e.g., TL and leprosy), when different pathogens are present in the same lesions (e.g., Leishmania and Sporothrix schenckii), or when similarities between phylogenetically close pathogens affect accuracy of diagnostic tests (e.g., serology for leishmaniasis and Chagas disease). Some coinfections (e.g., helminthiasis) appear to reduce the effectiveness of antileishmanial treatment, and drug combinations may cause cumulative adverse effects. CONCLUSIONS AND SIGNIFICANCE: In patients with TL, coinfection is frequent, it can lead to diagnostic errors and delays, and it can influence the effectiveness and safety of treatment. More research is needed to unravel how coinfections interfere with the pathogenesis of TL.


Assuntos
Coinfecção/epidemiologia , Coinfecção/parasitologia , Leishmaniose Cutânea/epidemiologia , Animais , Argentina/epidemiologia , Brasil/epidemiologia , Modelos Animais de Doenças , Humanos , Pele/patologia
14.
An Bras Dermatol ; 92(5): 642-648, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-29166500

RESUMO

BACKGROUND: Cutaneous leishmaniasis is distributed worldwide, including Brazil. Its several clinical forms need to be distinguished from other dermatoses. Clinical similarities and lack of a gold standard diagnostic tool make leishmaniasis-like lesions a challenging diagnosis. OBJECTIVES.: To report the final diagnosis of patients primarily suspected of having American tegumentary leishmaniasis (ATL). METHODS.: A retrospective cross-sectional study was conducted on the basis of medical records of 437 patients with clinical suspicion of ATL, registered in electronic hospital system between 1980 and 2013. Demographic, clinical, and laboratory data were compiled. RESULTS.: Analysis of 86 cases (19.7%) registered as ATL in one of the hypothesis revealed a different final diagnosis; 55 (63.9%) and 31 cases (36.1%) had skin and mucosal lesions, respectively. In 58 cases (67.4%), the requested PCR did not identify Leishmania sp. In 28 cases (32.5%), biopsies established the diagnosis and confirmed tumors, mycobacteriosis, and subcutaneous or systemic mycosis. Overall, 27% of the cases had inflammatory etiology, mainly nasal nonspecific inflammatory processes; 27% had infectious etiology, especially paracoccidioidomycosis and leprosy; 20% had neoplastic etiology, mainly basal and squamous cell carcinoma; 15% had miscellaneous etiology, including neuropathic ulcer, traumatic ulcers, idiopathic ulcer; 11% missed the follow-up. STUDY LIMITATIONS: Some cases had no final diagnosis due to loss of follow-up. CONCLUSION.: ATL can be confused with several differential diagnoses, especially inflammatory and infectious granulomatous diseases as well as non-melanoma skin cancers. Clinicians working in tropical areas should be aware of the main differential diagnosis of leishmaniasis-like lesions.


Assuntos
Leishmaniose Cutânea/diagnóstico , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Biópsia , Brasil/epidemiologia , Criança , Estudos Transversais , Diagnóstico Diferencial , Feminino , Humanos , Leishmaniose Cutânea/epidemiologia , Leishmaniose Cutânea/patologia , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Adulto Jovem
15.
Am J Trop Med Hyg ; 97(4): 1103-1110, 2017 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-29031287

RESUMO

In Central America, few cases of leprosy have been reported, but the disease may be unrecognized. Diagnosis is based on clinical criteria and histology. Preliminary field work in Nicaragua and Honduras found patients, including many children, with skin lesions clinically suggestive of atypical cutaneous leishmaniasis or indeterminate leprosy. Histology could not distinguish these diseases although acid-fast organisms were visible in a few biopsies. Lesions healed after standard antimicrobial therapy for leprosy. In the present study, patients, family members, and other community members were skin-tested and provided nasal swabs and blood samples. Biopsies were taken from a subgroup of patients with clinical signs of infection. Two laboratories analyzed samples, using local in-house techniques. Mycobacterium leprae, Leishmania spp. and Leishmania infantum were detected using polymerase chain reactions. Mycobacterium leprae DNA was detected in blood samples and nasal swabs, including some cases where leprosy was not clinically suspected. Leishmania spp. were also detected in blood and nasal swabs. Most biopsies contained Leishmania DNA and coinfection of Leishmania spp. with M. leprae occurred in 33% of cases. Mycobacterium leprae DNA was also detected and sequenced from Nicaraguan and Honduran environmental samples. In conclusion, leprosy and leishmaniasis are present in both regions, and leprosy appears to be widespread. The nature of any relationship between these two pathogens and the epidemiology of these infections need to be elucidated.


Assuntos
Leishmania/isolamento & purificação , Leishmaniose Cutânea/diagnóstico , Leishmaniose Cutânea/epidemiologia , Hanseníase/diagnóstico , Hanseníase/epidemiologia , Mycobacterium leprae/isolamento & purificação , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Honduras/epidemiologia , Humanos , Masculino , Pessoa de Meia-Idade , Nicarágua/epidemiologia , Reação em Cadeia da Polimerase
16.
An. bras. dermatol ; 92(5): 642-648, Sept.-Oct. 2017. tab, graf
Artigo em Inglês | LILACS | ID: biblio-887042

RESUMO

Abstract: Background: Cutaneous leishmaniasis is distributed worldwide, including Brazil. Its several clinical forms need to be distinguished from other dermatoses. Clinical similarities and lack of a gold standard diagnostic tool make leishmaniasis-like lesions a challenging diagnosis. Objectives. To report the final diagnosis of patients primarily suspected of having American tegumentary leishmaniasis (ATL). Methods. A retrospective cross-sectional study was conducted on the basis of medical records of 437 patients with clinical suspicion of ATL, registered in electronic hospital system between 1980 and 2013. Demographic, clinical, and laboratory data were compiled. Results. Analysis of 86 cases (19.7%) registered as ATL in one of the hypothesis revealed a different final diagnosis; 55 (63.9%) and 31 cases (36.1%) had skin and mucosal lesions, respectively. In 58 cases (67.4%), the requested PCR did not identify Leishmania sp. In 28 cases (32.5%), biopsies established the diagnosis and confirmed tumors, mycobacteriosis, and subcutaneous or systemic mycosis. Overall, 27% of the cases had inflammatory etiology, mainly nasal nonspecific inflammatory processes; 27% had infectious etiology, especially paracoccidioidomycosis and leprosy; 20% had neoplastic etiology, mainly basal and squamous cell carcinoma; 15% had miscellaneous etiology, including neuropathic ulcer, traumatic ulcers, idiopathic ulcer; 11% missed the follow-up. Study limitations: Some cases had no final diagnosis due to loss of follow-up. Conclusion. ATL can be confused with several differential diagnoses, especially inflammatory and infectious granulomatous diseases as well as non-melanoma skin cancers. Clinicians working in tropical areas should be aware of the main differential diagnosis of leishmaniasis-like lesions.


Assuntos
Humanos , Masculino , Feminino , Criança , Adolescente , Adulto , Pessoa de Meia-Idade , Idoso , Idoso de 80 Anos ou mais , Adulto Jovem , Leishmaniose Cutânea/diagnóstico , Biópsia , Brasil/epidemiologia , Estudos Transversais , Estudos Retrospectivos , Leishmaniose Cutânea/patologia , Leishmaniose Cutânea/epidemiologia , Diagnóstico Diferencial
17.
Artigo em Inglês | MEDLINE | ID: mdl-26924403

RESUMO

BACKGROUND: Cutaneous leishmaniasis in India is mainly confined to the deserts of Rajasthan; some cases have been reported from the dry north-western half of the Indo-Gangetic plain, including Punjab, Himachal Pradesh, Delhi and Varanasi. AIMS: To highlight a new focus of cutaneous leishmaniasis in the Jammu division of Jammu and Kashmir State, previously a non-endemic area. This report presents the clinico-epidemiological and investigative results of 120 new cases of cutaneous leishmaniasis detected between November 2012 and October 2013. METHODS: The clinical diagnosis of cutaneous leishmaniasis was made using criteria proposed by Bari and Rahman. It was further confirmed by the demonstration of Leishman-Donovan bodies in Leishman stained slit skin smears and skin biopsy specimens, and/or by a satisfactory response to intra-lesional sodium stibogluconate given weekly for 4 weeks. Serial clinical photographs were taken before giving injections and at the end of the 6 th week. RESULTS: There were 67 females and 53 males with an age range of 8 months to 80 years. The most frequently affected site was the face. Lesions were most commonly of the nodulo-ulcerative type. The number of lesions ranged from 1 to 4. Farmers (28.1%), homemakers (27.2%) and students (27.2%) were significantly over-represented among the occupations (P < 0.001). Skin smears and biopsies were positive for Leishman-Donovan bodies in 50.8% and 44.2% cases, respectively. CONCLUSIONS: There is a new focus of cutaneous leishmaniasis in Jammu division which deserves urgent attention from the public health angle. Further epidemiological studies are warranted to establish the identity of the vector and the strain of Leishmania involved.


Assuntos
Leishmaniose Cutânea/diagnóstico , Leishmaniose Cutânea/epidemiologia , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Gluconato de Antimônio e Sódio/administração & dosagem , Antiprotozoários/administração & dosagem , Criança , Pré-Escolar , Feminino , Humanos , Índia/epidemiologia , Lactente , Injeções Intralesionais , Leishmaniose Cutânea/tratamento farmacológico , Masculino , Pessoa de Meia-Idade , Adulto Jovem
18.
Trans R Soc Trop Med Hyg ; 109(6): 408-15, 2015 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-25918216

RESUMO

BACKGROUND: We assessed the feasibility and results of active case detection (ACD) of visceral leishmaniasis (VL), post kala-azar dermal leishmaniasis (PKDL) and other febrile diseases as well as of bednet impregnation for vector control. METHODS: Fever camps were organized and analyzed in twelve VL endemic villages in Bangladesh, India, and Nepal. VL, PKDL, tuberculosis, malaria and leprosy were screened among the febrile patients attending the camps, and existing bednets were impregnated with a slow release insecticide. RESULTS: Among the camp attendees one new VL case and two PKDL cases were detected in Bangladesh and one VL case in Nepal. Among suspected tuberculosis cases two were positive in India but none in the other countries. In India, two leprosy cases were found. No malaria cases were detected. Bednet impregnation coverage during fever camps was more than 80% in the three countries. Bednet impregnation led to a reduction of sandfly densities after 2 weeks by 86% and 32%, and after 4 weeks by 95% and 12% in India and Nepal respectively. The additional costs for the control programmes seem to be reasonable. CONCLUSION: It is feasible to combine ACD camps for VL and PKDL along with other febrile diseases, and vector control with bednet impregnation.


Assuntos
Erradicação de Doenças/organização & administração , Doenças Endêmicas/prevenção & controle , Febre/prevenção & controle , Mosquiteiros Tratados com Inseticida/estatística & dados numéricos , Leishmaniose Cutânea/prevenção & controle , Leishmaniose Visceral/prevenção & controle , Hanseníase/prevenção & controle , Malária/prevenção & controle , Tuberculose/prevenção & controle , Animais , Bangladesh/epidemiologia , Estudos de Viabilidade , Febre/epidemiologia , Humanos , Índia/epidemiologia , Controle de Insetos , Inseticidas , Leishmaniose Cutânea/epidemiologia , Leishmaniose Visceral/epidemiologia , Hanseníase/epidemiologia , Malária/epidemiologia , Nepal/epidemiologia , Prevalência , Desenvolvimento de Programas , Psychodidae , Tuberculose/epidemiologia
19.
Hansen. int ; 40(1): 17-24, 2015. ilus
Artigo em Português | LILACS, Sec. Est. Saúde SP | ID: biblio-831076

RESUMO

Leishmaniose Tegumentar Americana (LTA) é uma doença infecciosa, causada por protozoários do gênero Leishmania. É uma das doenças infectoparasitárias mais incidentes no mundo. No presente trabalho realizou-se um estudo transversal retrospectivo das características clínicas, epidemiológicas e imunológicas de portadores de Leishmaniose Tegumentar Americana.Foram utilizados prontuários de 34 pacientes com diagnóstico de LTA. A análise estatística foi realizada pelo Teste de Spearman. O sexo masculino foi acometido em 68% e o feminino 32%. A idade variou de 1 a 92 anos. A forma cutânea localizada ocorreu em 79,5%,sendo as úlceras a forma clínica mais comum (56%).Principal área acometida foi face (44%). O tempo para o diagnóstico foi menor que 10 meses em 68% dos indivíduos.Intradermorreação de Montenegro (IDRM) foi realizada em 29 pacientes, com positividade em 89,6% e a imunofluorescência indireta (IFI) em apenas 16 pacientes, sendo positiva em 13. A idade e o tempode evolução da doença apresentaram associação significativa com IDRM. Entretanto não foi observada associação da IFI com a idade do paciente e o tempo de doença, pelo teste de Spearman. O tratamento foi realizado na maioria dos casos com glucantime (71%),seguido de pentamidina (17%). Os resultados evidenciam que os exames sorológicos constituem uma ferramenta auxiliar e a correlação com achados clínicos e histopatológicos são imprescindíveis.


Introduction: American cutaneous leishmaniasis (ACL) is an infectious disease caused by protozoa of the genus Leishmania. World  leishmaniasis  is an important endemic disease and public health problem in developing countries. Methods: We conducted a retrospective, descriptive and analytical cross-sectional study of 34 patients diagnosed with ACL. Statistical analysis was performed using the nonparametric Spearman’s test. Results: The gender involved was male (68%) and female(32%); the age range of 1 to 92 years old. The most common clinical manifestations were localized cutaneous form (79.5%) and the ulcers (56%).The face was main affected area (44%) and the minor time from onset of symptoms to consultation was 10 months (68%) of patients. Montenegro skin test (MST) was performed in 29 patients, being positive in (89.6%) and the indirect immunofluorescence (IIF) in only 16 patients, being positive in 13. The age and the duration of the disease were significantly associated with MST. Conclusions: It was not observed the IFI association with the patient’s age and disease duration. The treatment was in most cases, meglumine antimoniate (71%), followed Pentamidine (17%). The results demonstrated thatthe serological tests constitute an auxiliary tool andthe correlations with clinical and histopathological findings are essential.


Assuntos
Humanos , Masculino , Feminino , Lactente , Pré-Escolar , Criança , Adolescente , Pessoa de Meia-Idade , Idoso de 80 Anos ou mais , Adulto Jovem , Leishmaniose Cutânea/diagnóstico , Leishmaniose Cutânea/epidemiologia , Leishmaniose Cutânea/imunologia , Brasil/epidemiologia , Estudos Retrospectivos , Técnica Indireta de Fluorescência para Anticorpo
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