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1.
Emerg Infect Dis ; 30(3): 611-613, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38407178

RESUMO

We sequenced Leishmania donovani genomes in blood samples collected in emerging foci of visceral leishmaniasis in western Nepal. We detected lineages very different from the preelimination main parasite population, including a new lineage and a rare one previously reported in eastern Nepal. Our findings underscore the need for genomic surveillance.


Assuntos
Leishmania donovani , Leishmaniose Visceral , Humanos , Leishmania donovani/genética , Leishmaniose Visceral/epidemiologia , Nepal/epidemiologia , Genômica
2.
Pediatr Crit Care Med ; 25(4): e177-e185, 2024 Apr 01.
Artigo em Inglês | MEDLINE | ID: mdl-37966344

RESUMO

OBJECTIVES: Profound dengue shock syndrome (DSS) complicated by severe respiratory failure necessitating mechanical ventilation (MV) accounts for high case fatality rates among PICU-admitted patients. A major challenge to management is the assessment of intravascular volume, which can be hampered by severe plasma leakage and the use of MV. DESIGN: Retrospective cohort, from 2013 to 2021. PATIENTS: Sixty-seven children with profound DSS supported by MV, some of whom underwent bedside point-of-care ultrasound (POCUS) for assessment and monitoring of hemodynamics and fluid administration. SETTING: PICU of the tertiary Children's Hospital No. 2 in Vietnam. INTERVENTIONS: None. MEASUREMENTS AND MAIN RESULTS: We analyzed data clinical and laboratory data during PICU stay. In particular, during use of MV (i.e., at times 0-, 6-, and 24-hr after commencement) and fluid resuscitation. The primary study outcome was 28-day in-hospital mortality, and the secondary outcomes were associations with changes in hemodynamics, blood lactate, and vasoactive-inotrope score (VIS). Patients had a median age of 7 years (interquartile range, 4-9). Use of POCUS during fluid management (39/67), as opposed to not using (28/67), was associated with lower mortality (6/39 [15%] vs. 18/28 [64%]; difference 49 % [95% CI, 28-70%], p < 0.001). Use of POCUS was associated with lower odds of death (adjusted odds ratio 0.17 [95% CI, 0.04-0.76], p = 0.02). The utilization of POCUS, versus not, was associated with greater use of resuscitation fluid, and reductions in VIS and pediatric logistic organ dysfunction (PELOD-2) score at 24 hours after MV and PICU discharge. CONCLUSIONS: In our experience of pediatric patients with profound DSS and undergoing MV (2013-2021), POCUS use was associated with lower odds of death, a higher volume of resuscitation fluid, and improvements in the blood lactate levels, VIS, and PELOD-2 score.


Assuntos
Respiração Artificial , Dengue Grave , Criança , Humanos , Lactente , Estudos Retrospectivos , Sistemas Automatizados de Assistência Junto ao Leito , Lactatos , Unidades de Terapia Intensiva Pediátrica
3.
Clin Infect Dis ; 75(8): 1423-1432, 2022 10 12.
Artigo em Inglês | MEDLINE | ID: mdl-35147680

RESUMO

BACKGROUND: Visceral leishmaniasis (VL) in patients with human immunodeficiency virus (HIV) presents an increasingly important patient cohort in areas where both infections are endemic. Evidence for treatment is sparce, with no high-quality studies from the Indian subcontinent. METHODS: This is a randomized, open-label, parallel-arm, phase 3 trial conducted within a single hospital in Patna, India. One hundred and fifty patients aged ≥18 years with serologically confirmed HIV and parasitologically confirmed VL were randomly allocated to 1 of 2 treatment arms, either a total 40 mg/kg intravenous liposomal amphotericin B (AmBisome; Gilead Pharmaceuticals) administered in 8 equal doses over 24 days or a total 30 mg/kg intravenous AmBisome administered in 6 equal doses given concomitantly with a total 1.4 g oral miltefosine administered through 2 daily doses of 50 mg over 14 days. The primary outcome was intention-to-treat relapse-free survival at day 210, defined as absence of signs and symptoms of VL or, if symptomatic, negative parasitological investigations. RESULTS: Among 243 patients assessed for eligibility, 150 were recruited between 2 January 2017 and 5 April 2018, with no loss to follow-up. Relapse-free survival at day 210 was 85% (64/75; 95% CI, 77-100%) in the monotherapy arm, and 96%, (72/75; 90-100%) in the combination arm. Nineteen percent (28/150) were infected with concurrent tuberculosis, divided equally between arms. Excluding those with concurrent tuberculosis, relapse-free survival at day 210 was 90% (55/61; 82-100%) in the monotherapy and 97% (59/61; 91-100%) in the combination therapy arm. Serious adverse events were uncommon and similar in each arm. CONCLUSIONS: Combination therapy appears to be safe, well tolerated, and effective, and halves treatment duration of current recommendations. CLINICAL TRIALS REGISTRATION: Clinical Trial Registry India (CTRI/2015/05/005807; the protocol is available online at https://osf.io/avz7r).


Assuntos
Antiprotozoários , Coinfecção , Infecções por HIV , Leishmaniose Visceral , Adolescente , Adulto , Anfotericina B , Antiprotozoários/efeitos adversos , Coinfecção/tratamento farmacológico , Quimioterapia Combinada , HIV , Infecções por HIV/complicações , Infecções por HIV/tratamento farmacológico , Humanos , Índia , Leishmaniose Visceral/complicações , Leishmaniose Visceral/tratamento farmacológico , Preparações Farmacêuticas , Fosforilcolina/efeitos adversos , Fosforilcolina/análogos & derivados , Recidiva , Resultado do Tratamento
4.
Clin Infect Dis ; 75(1): e368-e379, 2022 08 24.
Artigo em Inglês | MEDLINE | ID: mdl-35323932

RESUMO

BACKGROUND: In locations where few people have received coronavirus disease 2019 (COVID-19) vaccines, health systems remain vulnerable to surges in severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infections. Tools to identify patients suitable for community-based management are urgently needed. METHODS: We prospectively recruited adults presenting to 2 hospitals in India with moderate symptoms of laboratory-confirmed COVID-19 to develop and validate a clinical prediction model to rule out progression to supplemental oxygen requirement. The primary outcome was defined as any of the following: SpO2 < 94%; respiratory rate > 30 BPM; SpO2/FiO2 < 400; or death. We specified a priori that each model would contain three clinical parameters (age, sex, and SpO2) and 1 of 7 shortlisted biochemical biomarkers measurable using commercially available rapid tests (C-reactive protein [CRP], D-dimer, interleukin 6 [IL-6], neutrophil-to-lymphocyte ratio [NLR], procalcitonin [PCT], soluble triggering receptor expressed on myeloid cell-1 [sTREM-1], or soluble urokinase plasminogen activator receptor [suPAR]), to ensure the models would be suitable for resource-limited settings. We evaluated discrimination, calibration, and clinical utility of the models in a held-out temporal external validation cohort. RESULTS: In total, 426 participants were recruited, of whom 89 (21.0%) met the primary outcome; 257 participants comprised the development cohort, and 166 comprised the validation cohort. The 3 models containing NLR, suPAR, or IL-6 demonstrated promising discrimination (c-statistics: 0.72-0.74) and calibration (calibration slopes: 1.01-1.05) in the validation cohort and provided greater utility than a model containing the clinical parameters alone. CONCLUSIONS: We present 3 clinical prediction models that could help clinicians identify patients with moderate COVID-19 suitable for community-based management. The models are readily implementable and of particular relevance for locations with limited resources.


Assuntos
COVID-19 , Adulto , COVID-19/diagnóstico , Progressão da Doença , Humanos , Interleucina-6 , Modelos Estatísticos , Alta do Paciente , Segurança do Paciente , Prognóstico , Estudos Prospectivos , Receptores de Ativador de Plasminogênio Tipo Uroquinase , Reprodutibilidade dos Testes , SARS-CoV-2
5.
Trop Med Int Health ; 26(5): 504-517, 2021 05.
Artigo em Inglês | MEDLINE | ID: mdl-33452857

RESUMO

OBJECTIVES: To explore the current evidence on interventions to influence antibiotic prescribing behaviour of health professionals in outpatient settings in low-income and lower-middle-income countries, an underrepresented area in the literature. METHODS: The systematic review protocol for this study was registered in PROSPERO (CRD42020170504). We searched PubMed, Embase and the Cochrane Central Register of Controlled Trials (CENTRAL) for studies relating to antibiotic prescribing of health professionals in outpatient settings in low-income and lower-middle-income countries. Behavioural interventions were classified as persuasive, enabling, restrictive, structural or bundle (mix of different interventions). In total, 3,514 abstracts were screened and 42 studies were selected for full-text review, with 13 studies included in the final narrative synthesis. RESULTS: Of the 13 included studies, five were conducted in Vietnam, two in Sudan, two in Tanzania, two in India and two in Kenya. All studies were conducted in the outpatient or ambulatory setting: eight took place in primary health centres, two in private clinics and three in pharmacies. Our review found that enabling or educational interventions alone may not be sufficient to overcome the ingrained incentives to link revenue generation to sales of antibiotics, and hence, their inappropriate prescription or misuse. Bundle interventions appear to be very effective at changing prescription behaviour among healthcare providers, including drug sellers and pharmacists. CONCLUSIONS: Multi-faceted bundle interventions that combine regulation enforcement with face-to-face education and peer influence may be more effective than educational interventions alone at curbing inappropriate antibiotic use.


Assuntos
Antibacterianos/uso terapêutico , Fidelidade a Diretrizes/estatística & dados numéricos , Prescrição Inadequada/prevenção & controle , Pacientes Ambulatoriais , Padrões de Prática Médica/estatística & dados numéricos , Instituições de Assistência Ambulatorial , Países em Desenvolvimento , Humanos , Índia , Quênia , Sudão , Tanzânia , Vietnã
6.
J Vector Borne Dis ; 58(2): 159-164, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-35074951

RESUMO

BACKGROUND & OBJECTIVES: There is limited evidence regarding the accuracy of dengue rapid diagnostic kits despite their extensive use in India. We evaluated the performance of four immunochromatographic Rapid Diagnostic Test (RDTs) kits: Multisure dengue Ab/Ag rapid test (MP biomedicals; MP), Dengucheck combo (Zephyr Biomedicals; ZB), SD bioline dengue duo (Alere; SD) and Dengue day 1 test (J Mitra; JM). METHODS: This is a laboratory-based diagnostic evaluation study. Rapid tests results were compared to reference non-structural (NS1) antigen or immunoglobulin M (IgM) enzyme-linked immunosorbent assay (ELISA) results of 241 dengue-positive samples and 247 dengue-negative samples. Sensitivity and specificity of NS1 and IgM components of each RDT were calculated separately and in combination (either NS1 or IgM positive) against reference standard ELISA. RESULTS: A total of 238, 226, 208, and 146 reference NS1 ELISA samples were tested with MP, ZB, SD, and JM tests, respectively. In comparison to the NS1 ELISA reference tests, the NS1 component of MP, ZB, SD, and JM RDTs demonstrated a sensitivity of 71.8%, 85.1%, 77.2% and 80.9% respectively and specificity of 90.1%, 92.8%, 96.1 %, and 93.6%, respectively. In comparison to the IgM ELISA reference test, the IgM component of RDTs showed a sensitivity of 40.0%, 50.3%, 47.3% and 20.0% respectively and specificity of 92.4%, 88.6%, 96.5%, and 92.2% respectively. Combining NS1 antigen and IgM antibody results led to sensitivities of 87.5%, 82.9%, 93.8% and 91.7% respectively, and specificities of 75.3%, 73.9%, 76.5%, and 80.0% respectively. INTERPRETATION & CONCLUSION: Though specificities were acceptable, the sensitivities of each test were markedly lower than manufacturers' claims. These results also support the added value of combined antigen-and antibody-based RDTs for the diagnosis of acute dengue.


Assuntos
Vírus da Dengue , Dengue , Anticorpos Antivirais , Dengue/diagnóstico , Ensaio de Imunoadsorção Enzimática , Humanos , Imunoglobulina M , Sensibilidade e Especificidade , Proteínas não Estruturais Virais
7.
Lancet ; 392(10151): 951-970, 2018 09 15.
Artigo em Inglês | MEDLINE | ID: mdl-30126638

RESUMO

Leishmaniasis is a poverty-related disease with two main clinical forms: visceral leishmaniasis and cutaneous leishmaniasis. An estimated 0·7-1 million new cases of leishmaniasis per year are reported from nearly 100 endemic countries. The number of reported visceral leishmaniasis cases has decreased substantially in the past decade as a result of better access to diagnosis and treatment and more intense vector control within an elimination initiative in Asia, although natural cycles in transmission intensity might play a role. In east Africa however, the case numbers of this fatal disease continue to be sustained. Increased conflict in endemic areas of cutaneous leishmaniasis and forced displacement has resulted in a surge in these endemic areas as well as clinics across the world. WHO lists leishmaniasis as one of the neglected tropical diseases for which the development of new treatments is a priority. Major evidence gaps remain, and new tools are needed before leishmaniasis can be definitively controlled.


Assuntos
Antiprotozoários/uso terapêutico , Leishmaniose Cutânea , Leishmaniose Visceral , Animais , Coinfecção/complicações , Vetores de Doenças , Saúde Global , Infecções por HIV/complicações , Humanos , Leishmania , Leishmaniose Cutânea/diagnóstico , Leishmaniose Cutânea/tratamento farmacológico , Leishmaniose Cutânea/epidemiologia , Leishmaniose Cutânea/fisiopatologia , Leishmaniose Visceral/diagnóstico , Leishmaniose Visceral/tratamento farmacológico , Leishmaniose Visceral/epidemiologia , Leishmaniose Visceral/fisiopatologia
8.
Clin Infect Dis ; 67(5): 667-675, 2018 08 16.
Artigo em Inglês | MEDLINE | ID: mdl-29554244

RESUMO

Background: A safe and effective short-course treatment regimen for post-kala-azar dermal leishmaniasis (PKDL) is considered essential for achieving and sustaining elimination of visceral leishmaniasis (VL) in the Indian subcontinent [1, 2]. Here, single-dose liposomal amphotericin B (AmBisome) has been adopted as a first-line regimen for VL; however the effectiveness and safety of AmBisome for PKDL has not been formally evaluated. Methods: The safety and effectiveness of AmBisome 15 mg/kg, given over 15 days in 5 biweekly infusions of 3 mg/kg on an outpatient basis, was evaluated between April and November 2014 in patients with clinically diagnosed PKDL, aged ≥12 years and residing in a highly VL-endemic area in Bangladesh. This was a prospective cohort observational study, with the objective to assess final cure 12 months after treatment. Clinical response was monitored at 1, 3, 6, and 12 months, and safety during treatment and up to 1 month after treatment. Results: Of the 280 patients meeting the inclusion criteria, 273 were assessed at 12 months. A complete or major improvement of lesions was seen in 245 patients (89.7%); 213 (78.0%) were considered completely cured. Lesions did not improve in 28 (10.3%) and new lesions appeared in 13 (4.8%). All patients completed treatment without severe or serious adverse events. Conclusions: A short-course 15-mg/kg AmBisome regimen proved safe and effective in the treatment of clinically diagnosed PKDL in Bangladesh, and should be considered a treatment option for routine programmatic use in the VL elimination effort in the Indian subcontinent.


Assuntos
Anfotericina B/uso terapêutico , Antiprotozoários/uso terapêutico , Leishmaniose Visceral/complicações , Leishmaniose Visceral/tratamento farmacológico , Adolescente , Adulto , Bangladesh , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Recidiva , Resultado do Tratamento , Adulto Jovem
9.
Clin Infect Dis ; 61(8): 1255-62, 2015 Oct 15.
Artigo em Inglês | MEDLINE | ID: mdl-26129756

RESUMO

BACKGROUND: There are considerable numbers of patients coinfected with human immunodeficiency virus (HIV) and visceral leishmaniasis (VL) in the VL-endemic areas of Bihar, India. These patients are at higher risk of relapse and death, but there are still no evidence-based guidelines on how to treat them. In this study, we report on treatment outcomes of coinfected patients up to 18 months following treatment with a combination regimen. METHODS: This retrospective analysis included all patients with confirmed HIV-VL coinfection receiving combination treatment for VL at a Médecins Sans Frontières treatment center between July 2012 and September 2014. Patients were treated with 30 mg/kg body weight intravenous liposomal amphotericin B (AmBisome) divided as 6 equal dose infusions combined with 14 days of 100 mg/day oral miltefosine (Impavido). All patients were encouraged to start or continue on antiretroviral therapy (ART). RESULTS: 102 patients (76% males, 57% with known HIV infection, 54% with a prior episode of VL) were followed-up for a median of 11 months (interquartile range: 4-18). Cumulative incidence of all-cause mortality and VL relapse at 6, 12, and 18 months was 11.7%, 14.5%, 16.6% and 2.5%, 6.0%,13.9%, respectively. Cumulative incidence of poor outcome at 6, 12, and 18 months was 13.9%, 18.4%, and 27.2%, respectively. Not initiating ART and concurrent tuberculosis were independent risk factors for mortality, whereas no factors were associated with relapse. CONCLUSIONS: In this Bihar-based study, combination therapy appeared to be well tolerated, safe, and effective and may be considered as an option for treatment of VL in HIV coinfected patients.


Assuntos
Anfotericina B/administração & dosagem , Coinfecção , Infecções por HIV/complicações , Leishmaniose Visceral/complicações , Leishmaniose Visceral/tratamento farmacológico , Fosforilcolina/análogos & derivados , Administração Intravenosa , Administração Oral , Adolescente , Adulto , Anfotericina B/uso terapêutico , Esquema de Medicação , Quimioterapia Combinada , Feminino , Seguimentos , Infecções por HIV/tratamento farmacológico , Infecções por HIV/mortalidade , Infecções por HIV/virologia , Humanos , Índia , Leishmaniose Visceral/mortalidade , Leishmaniose Visceral/parasitologia , Masculino , Pessoa de Meia-Idade , Fosforilcolina/administração & dosagem , Fosforilcolina/uso terapêutico , Recidiva , Estudos Retrospectivos , Fatores de Risco , Falha de Tratamento , Resultado do Tratamento , Adulto Jovem
10.
Lancet ; 393(10174): 872-873, 2019 03 02.
Artigo em Inglês | MEDLINE | ID: mdl-30837140

Assuntos
Leishmaniose , Humanos
11.
BMC Infect Dis ; 15: 338, 2015 Aug 18.
Artigo em Inglês | MEDLINE | ID: mdl-26282537

RESUMO

BACKGROUND: Diarrhoea still accounts for considerable mortality and morbidity worldwide. The highest burden is concentrated in tropical areas where populations lack access to clean water, adequate sanitation and hygiene. In contrast to acute diarrhoea (<14 days), the spectrum of pathogens that may give rise to persistent diarrhoea (≥14 days) and persistent abdominal pain is poorly understood. It is conceivable that pathogens causing neglected tropical diseases play a major role, but few studies investigated this issue. Clinical management and diagnostic work-up of persistent digestive disorders in the tropics therefore remain inadequate. Hence, important aspects regarding the pathogenesis, epidemiology, clinical symptomatology and treatment options for patients presenting with persistent diarrhoea and persistent abdominal pain should be investigated in multi-centric clinical studies. METHODS/DESIGN: This multi-country, prospective, non-experimental case-control study will assess persistent diarrhoea (≥14 days; in individuals aged ≥1 year) and persistent abdominal pain (≥14 days; in children/adolescents aged 1-18 years) in up to 2000 symptomatic patients and 2000 matched controls. Subjects from Côte d'Ivoire, Indonesia, Mali and Nepal will be clinically examined and interviewed using a detailed case report form. Additionally, each participant will provide a stool sample that will be examined using a suite of diagnostic methods (i.e., microscopic techniques, rapid diagnostic tests, stool culture and polymerase chain reaction) for the presence of bacterial and parasitic pathogens. Treatment will be offered to all infected participants and the clinical treatment response will be recorded. Data obtained will be utilised to develop patient-centred clinical algorithms that will be validated in primary health care centres in the four study countries in subsequent studies. DISCUSSION: Our research will deepen the understanding of the importance of persistent diarrhoea and related digestive disorders in the tropics. A diversity of intestinal pathogens will be assessed for potential associations with persistent diarrhoea and persistent abdominal pain. Different diagnostic methods will be compared, clinical symptoms investigated and diagnosis-treatment algorithms developed for validation in selected primary health care centres. The findings from this study will improve differential diagnosis and evidence-based clinical management of digestive syndromes in the tropics. TRIAL REGISTRATION: ClinicalTrials.gov; identifier: NCT02105714 .


Assuntos
Diarreia/epidemiologia , Dor Abdominal/etiologia , Adolescente , Animais , Estudos de Casos e Controles , Criança , Pré-Escolar , Técnicas de Laboratório Clínico/economia , Técnicas de Laboratório Clínico/normas , Análise Custo-Benefício , Côte d'Ivoire/epidemiologia , Diarreia/complicações , Diarreia/diagnóstico , Diarreia/economia , Diarreia/microbiologia , Diarreia/parasitologia , Fezes/parasitologia , Feminino , Humanos , Indonésia/epidemiologia , Lactente , Recém-Nascido , Mali/epidemiologia , Nepal/epidemiologia , Estudos Prospectivos , Fatores de Risco
12.
Public Health Nutr ; 18(17): 3234-43, 2015 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-25753193

RESUMO

OBJECTIVE: Since 2009, Médecins Sans Frontières has implemented a community management of acute malnutrition (CMAM) programme in rural Biraul block, Bihar State, India that has admitted over 10 000 severely malnourished children but has struggled with poor coverage and default rates. With the aim of improving programme outcomes we undertook a qualitative study to understand community perceptions of childhood undernutrition, the CMAM programme and how these affected health-seeking behaviour. DESIGN: Semi-structured and narrative interviews were undertaken with families of severely malnourished children, non-undernourished children and traditional and allopathic health-care workers. Analysis of transcripts was by qualitative content analysis. SETTING: Biraul, Bihar State, India, 2010. SUBJECTS: One hundred and fifty people were interviewed in individual or group discussions during fifty-eight interviews. RESULTS: Undernutrition was not viewed as a disease; instead, local disease concepts were identified that described the clinical spectrum of undernutrition. These concepts informed perception, so caregivers were unlikely to consult health workers if children were 'only skinny'. Hindu and Muslim priests and other traditional health practitioners were more regularly consulted and perceived as easier to access than allopathic health facilities. Senior family members and village elders had significant influence on the health-seeking behaviour of parents of severely malnourished children. CONCLUSIONS: The results reaffirm how health education and CMAM programmes should encompass local disease concepts, beliefs and motivations to improve awareness that undernutrition is a disease and one that can be treated. CMAM is well accepted by the community; however, programmes must do better to engage communities, including traditional healers, to enable development of a holistic approach within existing social structures.


Assuntos
Fenômenos Fisiológicos da Nutrição Infantil , Agentes Comunitários de Saúde , Conhecimentos, Atitudes e Prática em Saúde , Desnutrição/prevenção & controle , Medicina Tradicional , Aceitação pelo Paciente de Cuidados de Saúde , Desnutrição Aguda Grave/dietoterapia , Pré-Escolar , Assistência à Saúde Culturalmente Competente , Diagnóstico Tardio , Grupos Focais , Homeopatia , Humanos , Índia , Lactente , Agências Internacionais , Desnutrição/diagnóstico , Desnutrição/dietoterapia , Desnutrição/etiologia , Estado Nutricional , Pesquisa Qualitativa , Saúde da População Rural , Desnutrição Aguda Grave/diagnóstico , Desnutrição Aguda Grave/etiologia , Desnutrição Aguda Grave/prevenção & controle , Instituições Filantrópicas de Saúde , Recursos Humanos
13.
Clin Infect Dis ; 69(1): 190, 2019 06 18.
Artigo em Inglês | MEDLINE | ID: mdl-30561583
14.
Clin Infect Dis ; 59(4): 552-5, 2014 Aug 15.
Artigo em Inglês | MEDLINE | ID: mdl-24814660

RESUMO

Although human immunodeficiency virus (HIV) and visceral leishmaniasis coinfection is recognized as a major public health challenge in Africa, data regarding the prevalence in India are very limited. Consecutive HIV screening of 2077 patients aged ≥14 years with confirmed visceral leishmaniasis in Bihar, eastern India, found that 5.6% were HIV positive, including 2.4% with newly diagnosed HIV infection.


Assuntos
Coinfecção/epidemiologia , Infecções por HIV/complicações , Infecções por HIV/epidemiologia , Leishmaniose Visceral/complicações , Leishmaniose Visceral/epidemiologia , Adolescente , Adulto , Idoso , Coinfecção/parasitologia , Coinfecção/virologia , Feminino , Humanos , Índia/epidemiologia , Masculino , Pessoa de Meia-Idade , Prevalência , Adulto Jovem
15.
Lancet Infect Dis ; 24(1): e36-e46, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-37640031

RESUMO

For the past 15 years, trials of combination therapy options for visceral leishmaniasis have been conducted with the aim of identifying effective, and safe treatment regimens that were shorter than existing monotherapy regimens and could also prevent or delay the emergence of drug resistance. Although first-line treatment currently relies on combination therapy in east Africa, this is not true in Latin America owing to disappointing trial results, with lower than expected efficacy seen for the combination treatment group. By contrast, several effective combination therapy regimens have been identified through trials on the Indian subcontinent; yet, first-line therapy is still AmBisome monotherapy as the drug is part of a free donation programme and is highly effective in this region. Achieving a short all-oral combination treatment will require new chemical entities, several of which are currently under evaluation. Future studies should systematically include pharmacological substudies to ensure optimal dosing for all patient groups. To achieve maximal impact of new combination treatments, mechanisms to ensure drug availability and access after trials should be established. Enhancing the longevity of current and novel treatments will require effective systems for early detection of emerging drug resistance.


Assuntos
Antiprotozoários , Leishmaniose Visceral , Humanos , Leishmaniose Visceral/tratamento farmacológico , Antiprotozoários/uso terapêutico , Quimioterapia Combinada , Fosforilcolina/uso terapêutico , Terapia Combinada
16.
J Microbiol Methods ; 223: 106974, 2024 Jun 14.
Artigo em Inglês | MEDLINE | ID: mdl-38880389

RESUMO

Microscopy as a basic diagnostic method cannot be used everywhere globally. Validity of slide reading was tested on torch-modified microscopes. Experienced microscopists handled the modification without prior standard-adaptation. In contrast, microscopist-trainees required more detailed instructions to get acquainted with this new technique. The overall results encourage further, setting-specific validation.

17.
Medicine (Baltimore) ; 103(1): e36797, 2024 Jan 05.
Artigo em Inglês | MEDLINE | ID: mdl-38181280

RESUMO

RATIONALE: Hand-foot-mouth disease (HFMD) caused by Enterovirus A71, complicated by cardiopulmonary failure, is associated with a high mortality rate despite intensive treatment. To date, there is a paucity of clinical management data, regarding the use of extracorporeal life support (VA-ECMO) for Enterovirus-A71 associated cardiopulmonary failure reported. PATIENT CONCERNS: The patient in this study presented with severe HFMD complicated by cardiopulmonary failure, polymorphic ventricular tachycardia, and cardiac arrest. DIAGNOSES: Clinical presentations, laboratory data, and polymerase chain reaction (PCR) results from rectal swabs were used to confirm the diagnosis of severe HFMD caused by Enterovirus A71. INTERVENTIONS: The patient was managed with chest compression and an automatic external defibrillator, mechanical ventilation, intravenous immunoglobulin (IVIG), continuous renal replacement therapy (CRRT) and inotrope (milrinone). The patient did not respond to these interventions and subsequently required further management with VA-ECMO. OUTCOMES: The patient achieved a favorable outcomes. LESSONS: Our study highlights that extracorporeal membrane oxygenation and CRRT can enhance the survival outcomes of patients with severe HFMD with cardiopulmonary failure complications. Furthermore, we propose specific indications for the initiation of VA-ECMO.


Assuntos
Terapia de Substituição Renal Contínua , Infecções por Enterovirus , Enterovirus , Oxigenação por Membrana Extracorpórea , Doença de Mão, Pé e Boca , Humanos , Infecções por Enterovirus/complicações , Infecções por Enterovirus/terapia , Doença de Mão, Pé e Boca/complicações , Doença de Mão, Pé e Boca/terapia , Antígenos Virais
18.
JAC Antimicrob Resist ; 6(1): dlad151, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-38170073

RESUMO

Objectives: To describe the prevalence of common bacterial pathogens and antibiotic susceptibility patterns amongst advanced HIV disease (AHD) patients admitted between May 2019 and March 2021 to a Médecins Sans Frontières (MSF)-supported AHD inpatient unit in Bihar, India. Methods: A retrospective analysis of routinely collected demographic, clinical and microbiological data. Antibacterial susceptibility testing was done by an accredited referral laboratory using the modified Kirby-Bauer disc diffusion method. Results: A total of 238 isolates from 577 patients were identified through culture testing. Patient median (IQR) age was 38 (31-45) years, and 75% were male. Predominant sample types included blood (600; 38%), urine (266; 17%) and sputum (178; 11%). Of the isolated bacteria, Escherichia coli (80; 13.9%) was the most prevalent, followed by Klebsiella pneumonia (54; 9.4%), Pseudomonas aeruginosa (22; 3.8%), Klebsiella oxytoca (10; 1.7%), Proteus mirabilis (9; 1.6%), and Acinetobacter baumannii (7; 1.2%). The resistance pattern showed that most bacterial isolates were highly resistant to commonly prescribed antibiotics such as third-generation cephalosporins, fluoroquinolones and co-trimoxazole. Most pathogens were moderately resistant to antibiotics from the WHO Watch group, such as meropenem and piperacillin/tazobactam. In contrast, isolates were more susceptible to aminoglycosides, such as amikacin, gentamicin and nitrofurantoin. Conclusions: In Bihar, inpatients with AHD displayed a concerning array of antibiotic-resistant infections. This study provides a starting point from which further work on antimicrobial resistance in this vulnerable cohort of patients can be conducted.

20.
PLoS One ; 19(4): e0289578, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38630746

RESUMO

In Nepal, visceral leishmaniasis (VL) has been targeted for elimination as a public health problem by 2026. Recently, increasing numbers of VL cases have been reported from districts of doubtful endemicity including hills and mountains, threatening the ongoing VL elimination program in Nepal. We conducted a multi-disciplinary, descriptive cross-sectional survey to assess the local transmission of Leishmania donovani in seven such districts situated at altitudes of up to 1,764 meters in western Nepal from March to December 2019. House-to-house surveys were performed for socio-demographic data and data on past and current VL cases. Venous blood was collected from all consenting individuals aged ≥2 years and tested with the rK39 RDT. Blood samples were also tested with direct agglutination test, and a titer of ≥1:1600 was taken as a marker of infection. A Leishmania donovani species-specific PCR (SSU-rDNA) was performed for parasite species confirmation. We also captured sand flies using CDC light traps and mouth aspirators. The house-to-house surveys documented 28 past and six new VL cases of which 82% (28/34) were without travel exposure. Overall, 4.1% (54/1320) of healthy participants tested positive for L. donovani on at least one serological or molecular test. Among asymptomatic individuals, 17% (9/54) were household contacts of past VL cases, compared to 0.5% (6/1266) among non-infected individuals. Phlebotomus argentipes, the vector of L. donovani, was found in all districts except in Bajura. L. donovani was confirmed in two asymptomatic individuals and one pool of sand flies of Phlebotomus (Adlerius) sp. We found epidemiological and entomological evidence for local transmission of L. donovani in areas previously considered as non-endemic for VL. The national VL elimination program should revise the endemicity status of these districts and extend surveillance and control activities to curb further transmission of the disease.


Assuntos
Leishmania donovani , Leishmaniose Visceral , Phlebotomus , Psychodidae , Animais , Humanos , Leishmaniose Visceral/epidemiologia , Nepal/epidemiologia , Estudos Transversais , Leishmania donovani/genética , Phlebotomus/parasitologia
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