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1.
Nature ; 599(7883): 114-119, 2021 11.
Artigo em Inglês | MEDLINE | ID: mdl-34488225

RESUMO

The B.1.617.2 (Delta) variant of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) was first identified in the state of Maharashtra in late 2020 and spread throughout India, outcompeting pre-existing lineages including B.1.617.1 (Kappa) and B.1.1.7 (Alpha)1. In vitro, B.1.617.2 is sixfold less sensitive to serum neutralizing antibodies from recovered individuals, and eightfold less sensitive to vaccine-elicited antibodies, compared with wild-type Wuhan-1 bearing D614G. Serum neutralizing titres against B.1.617.2 were lower in ChAdOx1 vaccinees than in BNT162b2 vaccinees. B.1.617.2 spike pseudotyped viruses exhibited compromised sensitivity to monoclonal antibodies to the receptor-binding domain and the amino-terminal domain. B.1.617.2 demonstrated higher replication efficiency than B.1.1.7 in both airway organoid and human airway epithelial systems, associated with B.1.617.2 spike being in a predominantly cleaved state compared with B.1.1.7 spike. The B.1.617.2 spike protein was able to mediate highly efficient syncytium formation that was less sensitive to inhibition by neutralizing antibody, compared with that of wild-type spike. We also observed that B.1.617.2 had higher replication and spike-mediated entry than B.1.617.1, potentially explaining the B.1.617.2 dominance. In an analysis of more than 130 SARS-CoV-2-infected health care workers across three centres in India during a period of mixed lineage circulation, we observed reduced ChAdOx1 vaccine effectiveness against B.1.617.2 relative to non-B.1.617.2, with the caveat of possible residual confounding. Compromised vaccine efficacy against the highly fit and immune-evasive B.1.617.2 Delta variant warrants continued infection control measures in the post-vaccination era.


Assuntos
Evasão da Resposta Imune , SARS-CoV-2/crescimento & desenvolvimento , SARS-CoV-2/imunologia , Replicação Viral/imunologia , Anticorpos Neutralizantes/imunologia , Vacinas contra COVID-19/imunologia , Fusão Celular , Linhagem Celular , Feminino , Pessoal de Saúde , Humanos , Índia , Cinética , Masculino , Glicoproteína da Espícula de Coronavírus/metabolismo , Vacinação
2.
Mycoses ; 67(9): e13790, 2024 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-39278818

RESUMO

BACKGROUND AND OBJECTIVES: Candidaemia is a potentially life-threatening emergency in the intensive care units (ICUs). Surveillance using common protocols in a large network of hospitals would give meaningful estimates of the burden of candidaemia and central line associated candidaemia in low resource settings. We undertook this study to understand the burden and epidemiology of candidaemia in multiple ICUs of India, leveraging the previously established healthcare-associated infections (HAI) surveillance network. Our aim was also to assess the impact that the pandemic of COVID-19 had on the rates and associated mortality of candidaemia. METHODS: This study included adult patients from 67 Indian ICUs in the AIIMS-HAI surveillance network that conducted BSI surveillance in COVID-19 and non-COVID-19 ICUs during and before the COVID-19 pandemic periods. Hospitals identified healthcare-associated candidaemia and central line associated candidaemia and reported clinical and microbiological data to the network as per established and previously published protocols. RESULTS: A total of 401,601 patient days and 126,051 central line days were reported during the study period. A total of 377 events of candidaemia were recorded. The overall rate of candidaemia in our network was 0.93/1000 patient days. The rate of candidaemia in COVID-19 ICUs (2.52/1000 patient days) was significantly higher than in non-COVID-19 ICUs (1.05/patient days) during the pandemic period. The rate of central line associated candidaemia in COVID-19 ICUs (4.53/1000 central line days) was also significantly higher than in non-COVID-19 ICUs (1.73/1000 central line days) during the pandemic period. Mortality in COVID-19 ICUs associated with candidaemia (61%) was higher than that in non-COVID-19 ICUs (41%). A total of 435 Candida spp. were isolated. C. tropicalis (26.7%) was the most common species. C. auris accounted for 17.5% of all isolates and had a high mortality. CONCLUSION: Patients in ICUs with COVID-19 infections have a much higher risk of candidaemia, CLAC and its associated mortality. Network level data helps in understanding the true burden of candidaemia and will help in framing infection control policies for the country.


Assuntos
COVID-19 , Candidemia , Infecção Hospitalar , Unidades de Terapia Intensiva , Humanos , COVID-19/epidemiologia , Candidemia/epidemiologia , Índia/epidemiologia , Unidades de Terapia Intensiva/estatística & dados numéricos , Masculino , Pessoa de Meia-Idade , Feminino , Adulto , Infecção Hospitalar/epidemiologia , SARS-CoV-2 , Idoso , Infecções Relacionadas a Cateter/epidemiologia , Infecções Relacionadas a Cateter/microbiologia , Pandemias
3.
J Assoc Physicians India ; 68(5): 30-31, 2020 May.
Artigo em Inglês | MEDLINE | ID: mdl-32610862

RESUMO

INTRODUCTION: Although, urinary tract infections (UTI) remain the most common cause of mortality and morbidity in renal allograft recipients, there is scarce data from India on the etiology and antibiogram of UTI post kidney transplantation. Therefore, the current study was undertaken to evaluate the prevalence, etiology and the antibiogram of pathogens causing UTI in this cohort. METHODS: Renal allograft recipients enrolled during the study period were screened for UTI by standard microscopy and routine culture on the day of admission and subsequently every 3rd day post-surgery till discharge. If UTI was present, the etiological agent and its antibiogram were recorded along with the demographic details of the patients. RESULTS: The prevalence of UTI post-transplantation at our centre was 30%. E.coli and Klebsiella pneumoniae were the most common organisms isolated in 42% and 39% cases, respectively. Majority of patients developed UTI on Day 6 (36.6%) and Day 9 (36.6%) post-transplant. Our study revealed a high percentage of resistance to commonly used 1st and 2nd line antibiotics like third generation cephalosporins (96.6%), fluoroquinolones (96.6%), and aminoglycosides (56.7%) and carbapenems (55.2%). CONCLUSION: Considering the high prevalence of UTI and antibiotic resistance rates in kidney transplant patients in our study, there is an urgent need for developing hospital based local antibiogram for appropriate management of UTI. Fosfomycin as an empirical therapy might be a useful choice for adequate coverage of potential pathogens at our centre. Further multi-centric studies on a larger sample size are recommended from India for formulating antibiotic policy.


Assuntos
Transplante de Rim , Infecções Urinárias/tratamento farmacológico , Antibacterianos/uso terapêutico , Humanos , Índia , Testes de Sensibilidade Microbiana , Prevalência , Centros de Atenção Terciária
4.
Indian J Crit Care Med ; 24(Suppl 5): S225-S230, 2020 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-33354047

RESUMO

The management of coronavirus disease-2019 (COVID-19) is witnessing a change as we learn more about the pathophysiology and the severity of the disease. Several randomized controlled trials (RCTs) and meta-analysis have been published over the last few months. Several interventions and therapies which showed promise in the initial days of the pandemic have subsequently failed to show benefit in well-designed trials. Understanding of the methods of oxygen delivery and ventilation have also evolved over the past few months. The Indian Society of Critical Care Medicine (ISCCM) has reviewed the evidence that has emerged since the publication of its position statement in May and has put together an addendum of updated evidence. How to cite this article: Mehta Y, Chaudhry D, Abraham OC, Chacko J, Divatia J, Jagiasi B, et al. Critical Care for COVID-19 Affected Patients: Position Statement of the Indian Society of Critical Care Medicine. Indian J Crit Care Med 2020;24(Suppl 5):S225-S230.

5.
Indian J Crit Care Med ; 24(4): 222-241, 2020 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-32565632

RESUMO

The global pandemic involving severe acute respiratory syndrome-coronavirus-2 (SARS-COV-2) has stretched the limits of science. Ever since it emerged from the Wuhan province in China, it has spread across the world and has been fatal to about 4% of the victims. This position statement of the Indian Society of Critical Care Medicine represents the collective opinion of the experts chosen by the society. HOW TO CITE THIS ARTICLE: Mehta Y, Chaudhry D, Abraham OC, Chacko J, Divatia J, Jagiasi B, et al. Critical Care for COVID-19 Affected Patients: Position Statement of the Indian Society of Critical Care Medicine. Indian J Crit Care Med 2020;24(4):222-241.

6.
Indian J Med Res ; 149(3): 389-395, 2019 03.
Artigo em Inglês | MEDLINE | ID: mdl-31249205

RESUMO

Background & objectives: : Nucleic acid amplification test (NAT) in blood donor screening not only detects window period (WP) donors but also those with chronic occult infections which are negative by routine serological screening. This study was conducted to determine the time trend of NAT positivity and seroprevalence of transfusion-transmitted infections (TTIs) through a period of six years and evaluate the strength of NAT as a supplementary test in identifying the cryptic carriers in blood donor population. Methods: : A total of 1,01,411 blood donations were screened between January 2011 and December 2016 by the ELISA and individual donor (ID) NAT Procleix Ultrio Plus Assay. Additional molecular and serological assays were done on the NAT yield samples to differentiate the type of cryptic carriers. Results: : NAT yields comprised 0.05 per cent (50/101411) of the total samples tested with a yield rate of 1/2028. Hepatitis B virus (HBV) contributed to 80 per cent of the total NAT yields and the rest 20 per cent due to hepatitis C virus (HCV). Majority of HBV NAT yields (75%) were from chronic occult donors and 25 per cent were WP donors. Both HBV and HCV NAT yields had a wide range of viral count. There was no HIV NAT yield. A significant decline in the prevalence rate of TTIs through the study period of six years was observed. Interpretation & conclusions: : The cryptic infections found in blood donors increase the risk of TTIs. Blood screening by both serology and NAT can reduce this threat.


Assuntos
Antígenos de Superfície da Hepatite B/sangue , Técnicas de Amplificação de Ácido Nucleico/métodos , Estudos Soroepidemiológicos , Reação Transfusional/sangue , Adulto , Povo Asiático , Doadores de Sangue , Segurança do Sangue , DNA Viral/genética , DNA Viral/isolamento & purificação , Feminino , Hepacivirus/genética , Hepacivirus/isolamento & purificação , Hepacivirus/patogenicidade , Hepatite B/sangue , Hepatite B/epidemiologia , Hepatite B/virologia , Antígenos de Superfície da Hepatite B/isolamento & purificação , Vírus da Hepatite B/genética , Vírus da Hepatite B/isolamento & purificação , Vírus da Hepatite B/patogenicidade , Hepatite C/sangue , Hepatite C/epidemiologia , Hepatite C/virologia , Humanos , Índia/epidemiologia , Masculino , Reação Transfusional/epidemiologia , Reação Transfusional/genética , Reação Transfusional/virologia
7.
J Antimicrob Chemother ; 72(4): 969-974, 2017 04 01.
Artigo em Inglês | MEDLINE | ID: mdl-27999053

RESUMO

Many countries have observed an increase in the incidence of invasive fungal infections (IFIs) over the past two decades with emergence of new risk factors and isolation of new fungal pathogens. Early diagnosis and appropriate antifungal treatment remain the cornerstones of successful outcomes. However, due to non-specific clinical presentations and limited availability of rapid diagnostic tests, in more than half of cases antifungal treatment is inappropriate. As a result, the emergence of antifungal resistance both in yeasts and mycelial fungi is becoming increasingly common. The Delhi Chapter of the Indian Association of Medical Microbiologists (IAMM-DC) organized a 1 day workshop in collaboration with BSAC on 10 December 2015 in New Delhi to design a road map towards the development of a robust antifungal stewardship programme in the context of conditions in India. The workshop aimed at developing a road map for optimizing better outcomes in patients with IFIs while minimizing unintended consequences of antifungal use, ultimately leading to reduced healthcare costs and prevention development of resistance to antifungals. The workshop was a conclave of all stakeholders, eminent experts from India and the UK, including clinical microbiologists, critical care specialists and infectious disease physicians. Various issues in managing IFIs were discussed, including epidemiology, diagnostic and therapeutic algorithms in different healthcare settings. At the end of the deliberations, a consensus opinion and key messages were formulated, outlining a step-by-step approach to tackling the growing incidence of IFIs and antifungal resistance, particularly in the Indian scenario.


Assuntos
Antifúngicos/uso terapêutico , Farmacorresistência Fúngica , Uso de Medicamentos/normas , Política de Saúde , Micoses/tratamento farmacológico , Humanos , Índia , Reino Unido
8.
Indian J Crit Care Med ; 21(3): 154-159, 2017 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-28400686

RESUMO

BACKGROUND: There is emergence of resistance to the last-line antibiotics such as carbapenems in Intensive Care Units (ICUs), leaving little effective therapeutic options. Since there are no more newer antibiotics in the armamentarium in the near future, it has become imperative that we harness the interdisciplinary knowledge for the best clinical outcome of the patient. AIMS: The aim of the conference was to utilize the synergies between the clinical microbiologists and critical care specialists for better patient care and clinical outcome. MATERIALS AND METHODS: A combined continuing medical education program (CME) under the aegis of the Indian Association of Medical Microbiologists - Delhi Chapter and the Indian Society of Critical Care Medicine, Delhi and national capital region was organized to share their expertise on the various topics covering epidemiology, diagnosis, management, and prevention of hospital-acquired infections in ICUs. RESULTS: It was agreed that synergy between the clinical microbiologists and critical care medicine is required in understanding the scope of laboratory tests, investigative pathway testing, hospital epidemiology, and optimum use of antibiotics. A consensus on the use of rapid diagnostics such as point-of-care tests, matrix-assisted laser desorption ionization-time of flight mass spectrometry, and molecular tests for the early diagnosis of infectious disease was made. It was agreed that stewardship activities along with hospital infection control practices should be further strengthened for better utilization of the antibiotics. Through this CME, we identified the barriers and actionables for appropriate antimicrobial usage in Indian ICUs. CONCLUSIONS: A close coordination between clinical microbiology and critical care medicine opens up avenues to improve antimicrobial prescription practices.

9.
Indian J Med Res ; 142(5): 575-82, 2015 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-26658593

RESUMO

BACKGROUND & OBJECTIVES: Multidrug-resistant tuberculosis (MDR-TB) is a public health problem of great significance in India. In the present study an attempt was made to analyse the progression of MDR-TB pattern during a course of 13 years (2000-2012) among the patient population at a tertiary care centre in New Delhi, India. METHODS: Mycobacterial isolates obtained on Lowenstein-Jensen (L-J) medium/BacT/ALERT 3D were identified using AccuProbe molecular identification system, routine biochemical tests or GenoType Mycobacteria CM. Antimycobacterial susceptibility testing was performed using resistance ratio method on L-J medium (2000-2004) and one per cent proportion method on BacT/ALERT 3D system (2005-2012). RESULTS: Of the total 14,849 samples subjected to mycobacterial culture, 6569 pulmonary and 8280 extrapulmonary, 2364 were detected positive for mycobacteria. The average percentage positivity rate was 15.9 per cent (18.9 and 13.6% in case of pulmonary and extrapulmonary samples, respectively). Our study revealed a significant increase (P<0.001) in multidrug resistance by 12 per cent (4.7% in 2000 to 19.8% in 2012). MDR-TB was more in case of pulmonary (28.2%) than extrapulmonary (11.6%) TB (P<0.001). Only 6.5 per cent (154) of mycobacterial isolates were non-tuberculous mycobacteria and rapid growers represented by Mycobacterium fortuitum and M. abscessus were the most commonly isolated species. INTERPRETATION & CONCLUSIONS: Increase in prevalence of MDR-TB by 12 per cent in the past 13 years is alarming. Policy modifications may have to be done to strengthen the existing TB control programmes to encourage contact tracing and culture and drug susceptibility testing for all smear positive pulmonary cases to ensure early and appropriate therapy.


Assuntos
Hospitais , Tuberculose Resistente a Múltiplos Medicamentos/epidemiologia , Antituberculosos/farmacologia , Humanos , Índia , Testes de Sensibilidade Microbiana , Mycobacterium tuberculosis/efeitos dos fármacos , Estudos Retrospectivos , Tuberculose Resistente a Múltiplos Medicamentos/microbiologia
10.
J Assoc Physicians India ; 63(8): 82-3, 2015 08.
Artigo em Inglês | MEDLINE | ID: mdl-27604443

RESUMO

Paragonimiasis is a disease which is frequently misdiagnosed as pulmonary tuberculosis. In the areas where people eat crab/crayfish this disease should be considered in the differential diagnosis to avoid antituberculosis treatment for a non-tubercular condition. We are reporting a case of pulmonary paragonimiasis who had been treated for tuberculosis.


Assuntos
Erros de Diagnóstico/prevenção & controle , Pulmão/diagnóstico por imagem , Paragonimíase , Paragonimus/isolamento & purificação , Praziquantel/administração & dosagem , Escarro/parasitologia , Tuberculose Pulmonar/diagnóstico , Adulto , Animais , Anti-Helmínticos/administração & dosagem , Antituberculosos/farmacologia , Diagnóstico Diferencial , Humanos , Masculino , Paragonimíase/diagnóstico , Paragonimíase/fisiopatologia , Paragonimíase/terapia , Radiografia Torácica/métodos , Tomografia Computadorizada por Raios X/métodos , Resultado do Tratamento , Procedimentos Desnecessários
11.
Pediatr Crit Care Med ; 14(1): e1-7, 2013 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-23269358

RESUMO

OBJECTIVE: To evaluate the reproducibility of blind bronchial sampling in patients with suspected diagnosis of bacterial ventilator-associated pneumonia. DESIGN: Prospective study. SETTING: Pediatric intensive care unit of a tertiary care, multidisciplinary, teaching hospital in Northern India. PATIENTS: All consecutive patients on mechanical ventilation for >48 hrs were evaluated clinically for ventilator-associated pneumonia. INTERVENTIONS: Children with clinical ventilator-associated pneumonia were subjected to blind bronchial sampling twice. MEASUREMENTS AND MAIN RESULTS: Sixty-eight blind bronchial sampling samples from 34 patients were analyzed for polymorphonuclear cells, the presence, type, and number of bacteria. Acinetobacter baumannii was the most common organism grown from distal respiratory secretions. For polymorphonuclear cells, the concordance between two blind bronchial samples was 85.3% and kappa coefficient was 0.65. The concordance for the presence and type of bacteria in Gram staining in two samples was 85.3% and kappa coefficient was 0.68. The intraclass coefficients for bacterial index and predominant species index were 0.82 (95% confidence interval 0.65-0.91) and 0.89 (95% confidence interval 0.78-0.94), respectively. The use of prior antibiotics did not adversely affect the reproducibility of blind bronchial sampling. No major complications were recorded during the procedure. CONCLUSIONS: Blind bronchial sampling of lower respiratory tract secretions in mechanically ventilated patients generates reproducible results of quantitative and qualitative cultures. We suggest that blind bronchial sampling may provide valuable clue to the bacterial etiology in ventilated child with suspected clinical ventilator-associated pneumonia.


Assuntos
Infecções por Acinetobacter/diagnóstico , Brônquios/microbiologia , Pneumonia Associada à Ventilação Mecânica/diagnóstico , Infecções por Pseudomonas/diagnóstico , Manejo de Espécimes/métodos , Infecções por Acinetobacter/complicações , Acinetobacter baumannii , Adolescente , Criança , Pré-Escolar , Intervalos de Confiança , Feminino , Humanos , Lactente , Masculino , Neutrófilos , Pneumonia Associada à Ventilação Mecânica/microbiologia , Infecções por Pseudomonas/complicações , Pseudomonas aeruginosa , Reprodutibilidade dos Testes , Manejo de Espécimes/efeitos adversos , Sucção
12.
Indian J Med Microbiol ; 43: 51-57, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-36266150

RESUMO

PURPOSE: The COVID-19 pandemic was unique in the history of outbreaks because of the massive scaling up of resources related to diagnostics, treatment modalities, and vaccines. To understand the impact of the pandemic among laboratory professionals, we aimed to conduct a survey to assess the improvement in the lab capacity post-covid in terms of infrastructure and accreditation status across various levels of hospitals and to determine the changes in the practice of infection control precautions during the pandemic. METHODS: This was an anonymous, online-based survey (using 58 item questionnaire) conducted between July 09, 2021, and August 07, 2021. The survey targeted all EQAS registered diagnostic laboratories located in India. RESULTS: The survey reached out to 1182 participants, out of which 721 (61%) laboratories completed the questionnaire. During pre-COVID times, only 39% (282/721) of the laboratories had an RT-PCR facility. Among these 721 labs, 514 used open system RT-PCR assay, 217 labs used Truenat assay, 188 labs used GeneXpert assay, 31 used Abbott ID Now and 350 labs performed rapid antigen tests. During the pandemic, 55.3% got NABL accreditation and 7.4% were in the process of applying for COVID-19 molecular testing. In this, 80.7% of the laboratories participated in the ICMR - COVID quality control assessment. It was estimated that 41.4% of the laboratory professionals were re-using N95 masks. Overall, the infection prevention and control practices varied across each laboratory and hospital. CONCLUSION: These survey findings helped us to understand the strength and efficiency of laboratories in India in setting up new assays during a crisis time. Based on our findings, we propose to connect this network in a sustained manner to efficiently utilize the existing platforms to adapt to future pandemics.


Assuntos
COVID-19 , Fortalecimento Institucional , Controle de Infecções , Laboratórios Clínicos , Pessoal de Laboratório , Pandemias , Índia/epidemiologia , COVID-19/diagnóstico , COVID-19/epidemiologia , COVID-19/prevenção & controle , Pandemias/prevenção & controle , Garantia da Qualidade dos Cuidados de Saúde , Inquéritos e Questionários , Respiradores N95 , Teste para COVID-19 , Diagnóstico Precoce
13.
Am J Infect Control ; 51(1): 29-34, 2023 01.
Artigo em Inglês | MEDLINE | ID: mdl-35577058

RESUMO

BACKGROUND: Healthcare-associated infections (HAIs) are one of the most common adverse events in patient care that account for substantial morbidity and mortality. We evaluate the existing Infection Prevention and Control (IPC) practices in hospitals participating in the nationally representative HAI Surveillance network. METHODS: This cross-sectional survey was conducted in 23 hospitals across 22 states of India from October-2015 to September-2018 in the HAI surveillance network. The World Health Organization (WHO) IPC core components assessment tool for health-care facility level (IPCAT-H) was adapted from IPC assessment tool developed by US Centers for Disease Control and Prevention (US CDC) under the Epidemiology and Laboratory Capacity (ELC) Infection Control Assessment and Response (ICAR) Program. Mann-Whitney U test was used to calculate the significant difference between scores (P < .05). RESULTS: Amongst the participating hospitals, 7 were private sectors and 16 were public health care facilities. Infection IPCAT-H average score per multimodal strategy was less than 50% for programmed IPC activities (45.7); implementation of health care workers (HCWs) immunization programme (43.5%); monitoring and evaluation component (38.30%). CONCLUSIONS: There is potential for improvement in Human Resources, Surveillance of HAIs as well as Monitoring and Evaluation components.


Assuntos
Infecção Hospitalar , Controle de Infecções , Humanos , Controle de Infecções/métodos , Autorrelato , Estudos Transversais , Infecção Hospitalar/epidemiologia , Infecção Hospitalar/prevenção & controle , Hospitais
14.
Indian J Med Res ; 136(6): 997-1003, 2012 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-23391796

RESUMO

BACKGROUND & OBJECTIVES: During recent decades, there has been a change in the epidemiology of Candida infections, characterized by a progressive shift from a predominance of Candida albicans to non-albicans Candida species. This study was undertaken to analyze the change in the epidemiology of candidaemia and antifungal use at tertiary care hospital in New Delhi, India, over a period of 10 years. METHODS: A retrospective review of candidaemia between 1999 and 2008 and antifungal use from 2000 to 2008 was performed at Sir Ganga Ram Hosptial, New Delhi. Initially (1999-2005), isolates were differentiated as C. albicans and non- albicans Candida species. Between 2006-2008, these were identified to the species level and antifungal susceptibility was performed. RESULTS: The occurrence of candidaemia and total antifungal use increased significantly. Candidaemia due to non-albicans species increased and this was correlated with an increasing use of fluconazole. There was emergence and increased isolation of a novel species C. haemulonii with decreased susceptibility to both amphotericin B and azoles. Overall, sensitivities of 89.6, 90.9, 88.6, 68.8 and 54.3 per cent to amphotericin B, 5 flucytosine, voriconazole, fluconazole and itraconazole, respectively were observed. Cross-resistance or reduced susceptibility to both fluconazole (MIC >16 µg/ml) and voriconazole was observed in 11.3 per cent isolates. INTERPRETATION & CONCLUSIONS: The study demonstrates a shift to non-albicans Candida species causing fungaemia and the emergence of amphotericin B and azole resistant novel species, C. haemulonii. Decreased susceptibility to fluconazole, as well as the threat of emergence of cross-resistance to voriconazole in the background of high azole consumption may limit the use of these agents as a presumptive therapy for Candida blood stream infections (BSI).


Assuntos
Antifúngicos/farmacologia , Candida/efeitos dos fármacos , Candidíase/tratamento farmacológico , Candidíase/epidemiologia , Infecção Hospitalar/epidemiologia , Testes de Sensibilidade Microbiana/métodos , Anfotericina B/farmacologia , Antifúngicos/uso terapêutico , Candida/genética , Candidíase/sangue , Fluconazol/farmacologia , Flucitosina/farmacologia , Humanos , Incidência , Índia/epidemiologia , Itraconazol/farmacologia , Pirimidinas/farmacologia , Estudos Retrospectivos , Centros de Atenção Terciária/estatística & dados numéricos , Triazóis/farmacologia , Voriconazol
15.
Indian J Med Res ; 135(6): 907-12, 2012 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-22825611

RESUMO

BACKGROUND & OBJECTIVES: Extensive use of antibiotics has added to the escalation of antibiotic resistance. This study was undertaken to evaluate the association, if any between antibiotic use and resistance in a hospital setting, and also detect the predominant mechanism of antibiotic resistance in Escherichia coli and Klebsiella pneumoniae over a period of 10 years. METHODS: In a retrospective study of 10 years, a total of 77,618 blood culture samples from 2000 to 2009 from indoor patients were screened and those yielding E. coli and K. pneumoniae were included in the study. Antibiotic susceptibility records as well as the percentage of ESBL producers were noted. A total of 423 isolates of 2009 were also screened for AmpC and carbapenemase production. Antibiotic consumption data of 10 years were analysed. RESULTS: ESBL producing E. coli increased from 40 per cent in 2002 to 61 per cent in 2009, similarly there was a significant (P<0.05) rise in resistance to cefotaxime (75 to 97%), piperacillin-tazobactum (55- 84%) and carbapenem (2.4-52%) in K. pneumoniae. A significant (P<0.05) association was observed between resistance and consumption of carbapenem and piperacillin and tazobactum consumption in K. pneumonia. INTERPRETATION & CONCLUSIONS: Our study demonstrated a rise in consumption and resistance to broad spectrum antimicrobial agents and also established an association between consumption and resistance to these antibiotics. Over a period of 10 years, the emergence of pan-resistance in K. pneumoniae could be due to the production of carbapenemases whereas ESBL production was the common mechanism of resistance in E. coli. This study warrants a directed effort towards continued surveillance and antibiotic stewardship to minimize selection pressure and spread.


Assuntos
Escherichia coli , Infecções , Klebsiella pneumoniae , Resistência beta-Lactâmica/genética , Antibacterianos/efeitos adversos , Antibacterianos/uso terapêutico , Escherichia coli/enzimologia , Escherichia coli/genética , Escherichia coli/patogenicidade , Humanos , Infecções/sangue , Infecções/microbiologia , Klebsiella pneumoniae/enzimologia , Klebsiella pneumoniae/genética , Klebsiella pneumoniae/patogenicidade , Estudos Retrospectivos , beta-Lactamases/genética , beta-Lactamases/metabolismo
16.
Indian J Med Microbiol ; 40(4): 473-474, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36109272

RESUMO

India has confirmed 9 monkey pox (MPXV) cases by the time this editorial is being written. The size of the outbreak clusters is growing each day, as is the geographical spread across international borders. More interestingly it is being recognized as a potent sexually transmitted infection (STI) as it is attributed to close contact with lesions, with no intention of stigmatizing it. This zoonotic virus has a low level of endemicity since decades in west and central Africa, its place of origin. Now since it has spread to 75 countries and more joining, with over 25,539 plus cases, WHO declared it a public health emergency of international concern (PHEIC) on July 23, 2022.


Assuntos
Mpox , Infecções Sexualmente Transmissíveis , Surtos de Doenças , Humanos , Índia/epidemiologia , Mpox/epidemiologia , Saúde Pública
17.
Indian J Med Microbiol ; 40(1): 7-11, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35063300

RESUMO

BACKGROUND: In the situation where COVID-19 pandemic has placed unprecedented demands and pressure on the health care system, we wanted to analyze how the medical microbiologists of our country were affected. Was it actually an opportunity to showcase the specialty or was it a doom? A debate was organized as a key session in the national e-conference of the Indian Association of Medical Microbiologists, held on 10 December 2020. OBJECTIVES: The objective of the debate was to examine and analyze the various positive as well as negative impacts of COVID-19 on the discipline of the medical microbiology of our country. CONTENT: Before the debate a voting session was conducted to assess the opinion of the audience followed by a very interesting debate where both the speakers presented their view points. The points in favor of the discipline were, mainly up-gradation of the specialty of microbiology in terms of learning, skill development, infrastructure, networking & research opportunities related to COVID-19. While the main points against were, nerve wracking work load without much acknowledgement, performance pressure from hospital administration to maintain rapid turnaround time, and a forceful neglect of all other infectious diseases like tuberculosis and antimicrobial resistance which were the key battle fields of the medical microbiologists. Postgraduate & even undergraduate training programs got completely derailed to their disadvantage. By the end of the debate, it was concluded that COVID-19 was neither a boon nor a bane to the microbiologists. A balanced approach to the problem in hand is required without ignoring the pre-existing infectious diseases in our country. The post debate voting swayed the audience considerably for it to be a bane & the faculty debating for boon had a huge margin to begin with but finally won with a whisker indicating the intensity of the debate.


Assuntos
COVID-19 , Medicina , Atenção à Saúde , Humanos , Pandemias , SARS-CoV-2
18.
Indian J Med Microbiol ; 40(1): 35-45, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-34785281

RESUMO

PURPOSE: International and Indian guidelines for the management of patients with methicillin-resistant Staphylococcus aureus (MRSA) infections are available, but the local guidelines are not MRSA-specific. This study aimed to provide clinical insights for the treatment of MRSA infections in India. METHODS: We used a three-step modified Delphi method to obtain insights. Ten experts comprising infectious disease specialists, microbiologists, pulmonologists, and critical care experts agreed to participate in the analysis. In round 1, a total of 161 statements were circulated to the panel and the experts were asked to 'agree' or 'disagree' by responding 'yes' or 'no' to each statement and provide comments. The same process was used for 73 statements in round 2. Direct interaction with the experts was carried out in round 3 wherein 35 statements were discussed. At least 80% of the experts had to agree for a statement to reach concordance. RESULTS: Eighty-eight statements in round 1, thirty-eight statements in round 2, and eight statements in round 3 reached concordance and were accepted without modification. The final document comprised 152 statements on the management of various syndromes associated with MRSA such as skin and soft tissue infections, bacteremia and endocarditis, pneumonia, bone and joint infections, and central nervous system infections. CONCLUSIONS: This analysis will assist clinicians in India to choose an appropriate course of action for MRSA infections.


Assuntos
Staphylococcus aureus Resistente à Meticilina , Infecções dos Tecidos Moles , Infecções Estafilocócicas , Humanos , Índia , Infecções dos Tecidos Moles/tratamento farmacológico , Infecções Estafilocócicas/tratamento farmacológico
19.
Lancet Glob Health ; 10(9): e1317-e1325, 2022 09.
Artigo em Inglês | MEDLINE | ID: mdl-35961355

RESUMO

BACKGROUND: Health-care-associated infections (HAIs) cause significant morbidity and mortality globally, including in low-income and middle-income countries (LMICs). Networks of hospitals implementing standardised HAI surveillance can provide valuable data on HAI burden, and identify and monitor HAI prevention gaps. Hospitals in many LMICs use HAI case definitions developed for higher-resourced settings, which require human resources and laboratory and imaging tests that are often not available. METHODS: A network of 26 tertiary-level hospitals in India was created to implement HAI surveillance and prevention activities. Existing HAI case definitions were modified to facilitate standardised, resource-appropriate surveillance across hospitals. Hospitals identified health-care-associated bloodstream infections and urinary tract infections (UTIs) and reported clinical and microbiological data to the network for analysis. FINDINGS: 26 network hospitals reported 2622 health-care-associated bloodstream infections and 737 health-care-associated UTIs from 89 intensive care units (ICUs) between May 1, 2017, and Oct 31, 2018. Central line-associated bloodstream infection rates were highest in neonatal ICUs (>20 per 1000 central line days). Catheter-associated UTI rates were highest in paediatric medical ICUs (4·5 per 1000 urinary catheter days). Klebsiella spp (24·8%) were the most frequent organism in bloodstream infections and Candida spp (29·4%) in UTIs. Carbapenem resistance was common in Gram-negative infections, occurring in 72% of bloodstream infections and 76% of UTIs caused by Klebsiella spp, 77% of bloodstream infections and 76% of UTIs caused by Acinetobacter spp, and 64% of bloodstream infections and 72% of UTIs caused by Pseudomonas spp. INTERPRETATION: The first standardised HAI surveillance network in India has succeeded in implementing locally adapted and context-appropriate protocols consistently across hospitals and has been able to identify a large number of HAIs. Network data show high HAI and antimicrobial resistance rates in tertiary hospitals, showing the importance of implementing multimodal HAI prevention and antimicrobial resistance containment strategies. FUNDING: US Centers for Disease Control and Prevention cooperative agreement with All India Institute of Medical Sciences, New Delhi. TRANSLATION: For the Hindi translation of the abstract see Supplementary Materials section.


Assuntos
Anti-Infecciosos , Infecção Hospitalar , Pneumonia Associada à Ventilação Mecânica , Sepse , Infecções Urinárias , Criança , Infecção Hospitalar/epidemiologia , Infecção Hospitalar/prevenção & controle , Humanos , Recém-Nascido , Klebsiella , Pneumonia Associada à Ventilação Mecânica/complicações , Pneumonia Associada à Ventilação Mecânica/epidemiologia , Pneumonia Associada à Ventilação Mecânica/microbiologia , Estudos Prospectivos , Centros de Atenção Terciária , Infecções Urinárias/epidemiologia
20.
Am J Infect Control ; 50(4): 390-395, 2022 04.
Artigo em Inglês | MEDLINE | ID: mdl-34600081

RESUMO

BACKGROUND: Healthcare associated infections (HAIs) are prevalent and difficult to treat worldwide. Most HAIs can be prevented by effective implementation of Infection Prevention and Control (IPC) measures. A survey was conducted to assess the existing IPC practices across a network of Indian Hospitals using the World Health Organization designed self-assessment IPC Assessment Framework (IPCAF) tool. METHODS: This was a cross sectional observation study. Thirty-two tertiary care public and private facilities, part of the existing Indian HAI surveillance network was included. Data collected was analyzed by a central team at All India Institute of Medical Sciences, New Delhi, a tertiary care hospital of India. The WHO questionnaire tool was used to understand the capacity and efforts to implement IPC practices across the network. RESULTS: The overall median score of IPCAF across the network was 620. Based on the final IPCAF score of the facilities; 13% hospitals had basic IPC practices, 28% hospitals had intermediate and 59% hospitals had advanced IPC practices. The component multimodal strategies had the broadest range of score while the component IPC guidelines had the narrowest one. CONCLUSIONS: Quality improvement training for IPC nurses and healthcare professionals are needed to be provided to health facilities.


Assuntos
Infecção Hospitalar , Controle de Infecções , Infecção Hospitalar/epidemiologia , Infecção Hospitalar/prevenção & controle , Estudos Transversais , Atenção à Saúde , Instalações de Saúde , Humanos , Autorrelato , Inquéritos e Questionários
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