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Effect of carbapenem resistance on outcomes of bloodstream infection caused by Enterobacteriaceae in low-income and middle-income countries (PANORAMA): a multinational prospective cohort study

Stewardson, Andrew J, Marimuthu, Kalisvar, Sengupta, Sharmila, Allignol, Arthur, El-Bouseary, Maisra, Carvalho, Maria J, Hassan, Brekhna, Delgado-Ramirez, Monica A, Arora, Anita, Bagga, Ruchika, Owusu-Ofori, Alex K, Ovosi, Joseph O, Aliyu, Shamsudin, Saad, Hala, Kanj, Souha S, Khanal, Basudha, Bhattarai, Balkrishna, Saha, Samir K, Uddin, Jamal, Barman, Purabi, Sharma, Latika, El-Banna, Tarek, Zahra, Rabaab, Saleemi, Mansab Ali, Kaur, Amarjeet, Iregbu, Kenneth, Uwaezuoke, Nkolika SC, Abi Hanna, Pierre, Feghali, Rita, Correa, Ana L, Munera, Maria I, Le, Thi Anh Thu, Tran, Thi Thanh Nga, Phukan, Chimanjita, Phukan, Chiranjita, Valderrama-Beltrán, Sandra L, Alvarez-Moreno, Carlos, Walsh, Timothy R and Harbarth, Stephan 2019. Effect of carbapenem resistance on outcomes of bloodstream infection caused by Enterobacteriaceae in low-income and middle-income countries (PANORAMA): a multinational prospective cohort study. Lancet Infectious Diseases 19 (6) , pp. 601-610. 10.1016/S1473-3099(18)30792-8

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Background Low-income and middle-income countries (LMICs) are under-represented in reports on the burden of antimicrobial resistance. We aimed to quantify the clinical effect of carbapenem resistance on mortality and length of hospital stay among inpatients in LMICs with a bloodstream infection due to Enterobacteriaceae. Methods The PANORAMA study was a multinational prospective cohort study at tertiary hospitals in Bangladesh, Colombia, Egypt, Ghana, India, Lebanon, Nepal, Nigeria, Pakistan, and Vietnam, recruiting consecutively diagnosed patients with carbapenem-susceptible Enterobacteriaceae (CSE) and carbapenem-resistant Entero-bacteriaceae (CRE) bloodstream infections. We excluded patients who had previously been enrolled in the study and those not treated with curative intent at the time of bloodstream infection onset. There were no age restrictions. Central laboratories in India and the UK did confirmatory testing and molecular characterisation, including strain typing. We applied proportional subdistribution hazard models with inverse probability weighting to estimate the effect of carbapenem resistance on probability of discharge alive and in-hospital death, and multistate modelling for excess length of stay in hospital. All patients were included in the analysis. Findings Between Aug 1, 2014, and June 30, 2015, we recruited 297 patients from 16 sites in ten countries: 174 with CSE bloodstream infection and 123 with CRE bloodstream infection. Median age was 46 years (IQR 15–61). Crude mortality was 20% (35 of 174 patients) for patients with CSE bloodstream infection and 35% (43 of 123 patients) for patients with CRE bloodstream infection. Carbapenem resistance was associated with an increased length of hospital stay (3·7 days, 95% CI 0·3–6·9), increased probability of in-hospital mortality (adjusted subdistribution hazard ratio 1·75, 95% CI 1·04–2·94), and decreased probability of discharge alive (0·61, 0·45–0·83). Multilocus sequence typing showed various clades, with marginal overlap between strains in the CRE and CSE clades. Interpretation Carbapenem resistance is associated with increased length of hospital stay and mortality in patients with bloodstream infections in LMICs. These data will inform global estimates of the burden of antimicrobial resistance and reinforce the need for better strategies to prevent, diagnose, and treat CRE infections in LMICs.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Medicine
Publisher: Elsevier: Lancet
ISSN: 1473-3099
Date of First Compliant Deposit: 22 August 2019
Last Modified: 17 Oct 2019 17:38

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