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Lopera C, Monzó P, Aiello TF, Chumbita M, Peyrony O, Gallardo-Pizarro A, Pitart C, Cuervo G, Morata L, Bodro M, Herrera S, Del Río A, Martínez JA, Soriano A, Puerta-Alcalde P, Garcia-Vidal C. Prevalence and impact of multidrug-resistant bacteria in solid cancer patients with bloodstream infection: a 25-year trend analysis. Microbiol Spectr 2024:e0296123. [PMID: 39194256 DOI: 10.1128/spectrum.02961-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Accepted: 03/14/2024] [Indexed: 08/29/2024] Open
Abstract
The study aimed to describe the epidemiology of multidrug-resistant (MDR) bacteria among solid cancer (SC) patients with bloodstream infections (BSIs), evaluating inappropriate empiric antibiotic treatment (IEAT) use and mortality trends over a 25-year period. All BSI occurrences in adult SC patients at a university hospital were analyzed across five distinct five-year intervals. MDR bacteria were classified as extended-spectrum beta-lactamases (ESBL)-producing and/or Carbapenem-resistant Enterobacterales, non-fermenting Gram-negative bacilli (GNB) resistant to at least three antibiotic classes, methicillin-resistant Staphylococcus aureus (MRSA), and Vancomycin-resistant Enterococci. A multivariate regression model identified the risk factors for MDR BSI. Of 6,117 BSI episodes, Gram-negative bacilli (GNB) constituted 60.4% (3,695/6,117), being the most common are Escherichia coli with 26.8% (1,637/6,117), Klebsiella spp. with 12.4% (760/6,117), and Pseudomonas aeruginosa with 8.6% (525/6,117). MDR-GNB accounted for 644 episodes (84.8% of MDR or 644/759), predominantly ESBL-producing strains (71.1% or 540/759), which escalated significantly over time. IEAT was administered in 24.8% of episodes, mainly in MDR BSI, and was associated with higher mortality (22.9% vs. 14%, P < 0.001). Independent factors for MDR BSI were prior antibiotic use [odds ratio (OR) 2.93, confidence interval (CI) 2.34-3.67], BSI during antibiotic treatment (OR 1.46, CI 1.18-1.81), biliary (OR 1.84, CI 1.34-2.52) or urinary source (OR 1.86, CI 1.43-2.43), admission period (OR) 1.28, CI 1.18-1.38, and community-acquired infection (OR 0.57, CI 0.39-0.82). The study showed an increase in MDR-GNB among SC patients with BSI. A quarter received IEAT, which was linked to increased mortality. Improving risk assessment for MDR infections and the judicious prescription of empiric antibiotics are crucial for better outcomes. IMPORTANCE Multidrug-resistant (MDR) bacteria pose a global public health threat as they are more challenging to treat, and they are on the rise. Solid cancer patients are often immunocompromised due to their disease and cancer treatments, making them more susceptible to infections. Understanding the changes and trends in bloodstream infections in solid cancer patients is crucial, to help physicians make informed decisions about appropriate antibiotic therapies, manage infections in this vulnerable population, and prevent infection. Solid cancer patients often require intensive and prolonged treatments, including surgery, chemotherapy, and radiation therapy. Infections can complicate these treatments, leading to treatment delays, increased healthcare costs, and poorer patient outcomes. Investigating new strategies to combat MDR infections and researching novel antibiotics in these patients is of paramount importance to avoid these negative impacts.
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Affiliation(s)
- Carlos Lopera
- Infectious Diseases Department, Hospital Clínic de Barcelona, Barcelona, Spain
| | - Patricia Monzó
- Infectious Diseases Department, Hospital Clínic de Barcelona, Barcelona, Spain
| | | | - Mariana Chumbita
- Infectious Diseases Department, Hospital Clínic de Barcelona, Barcelona, Spain
| | - Olivier Peyrony
- Emergency Department, Hôpital Saint-Louis, Assistance Publique - Hôpitaux de Paris, Paris, France
| | | | - Cristina Pitart
- Microbiology Department, Hospital Clínic de Barcelona, Barcelona, Spain
| | - Guillermo Cuervo
- Infectious Diseases Department, Hospital Clínic de Barcelona, Barcelona, Spain
| | - Laura Morata
- Infectious Diseases Department, Hospital Clínic de Barcelona, Barcelona, Spain
| | - Marta Bodro
- Infectious Diseases Department, Hospital Clínic de Barcelona, Barcelona, Spain
| | - Sabina Herrera
- Infectious Diseases Department, Hospital Clínic de Barcelona, Barcelona, Spain
| | - Ana Del Río
- Infectious Diseases Department, Hospital Clínic de Barcelona, Barcelona, Spain
| | | | - Alex Soriano
- Infectious Diseases Department, Hospital Clínic de Barcelona, Barcelona, Spain
- Universitat de Barcelona, Barcelona, Spain
| | - Pedro Puerta-Alcalde
- Infectious Diseases Department, Hospital Clínic de Barcelona, Barcelona, Spain
- Universitat de Barcelona, Barcelona, Spain
| | - Carolina Garcia-Vidal
- Infectious Diseases Department, Hospital Clínic de Barcelona, Barcelona, Spain
- Universitat de Barcelona, Barcelona, Spain
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Shah S, Nadeem MD, Ali J, Ahmad U, Mahmood A, Ikhlas Z. Risk Factors and Mortality Outcomes in Elderly Patients With Bloodstream Infections: A Retrospective Analysis. Cureus 2024; 16:e65275. [PMID: 39184803 PMCID: PMC11343016 DOI: 10.7759/cureus.65275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/24/2024] [Indexed: 08/27/2024] Open
Abstract
Background The objective of our investigation was to evaluate the mortality rate and predictor factors that are associated with bloodstream infections (BSIs) in elderly patients who are admitted to the internal medicine ward. Materials and methods A retrospective cross-sectional analysis was conducted at a 550-bed tertiary care hospital in Peshawar, Pakistan, from January 2021 to June 2022. The study involved elderly inpatients aged 65 and older with positive culture results detected within two days of admission. Data collection involved demographic and patient-related risk variables, BSI-related risk factors, and environmental risk factors, with statistical analysis performed using the Statistical Package for the Social Sciences (IBM SPSS Statistics for Windows, IBM Corp., Version 26.0, Armonk, NY). Results Of the total study sample (n=186), 103 (55.4%) survived while 83 (44.6%) did not. The non-survivor group had a higher median Sequential Organ Failure Assessment (SOFA) score (6 vs. 2, p<0.0001) and Charlson Comorbidity Index (5 ± 2 vs. 3 ± 2, p<0.0001), with more frequent immunosuppression (25.3% vs. 8.7%, p=0.001). Additionally, gram-positive bacteria were more common in non-survivors (42% vs. 10%, p<0.0001), while gram-negative bacteria were more prevalent in survivors (73% vs. 36%, p=0.002). Conclusions Our research validates that BSI in older adults is a serious condition that is linked to a substantial death rate during hospitalization. The biggest determinant of death in older patients with BSI is the severity of clinical symptoms evaluated by the SOFA score upon admission. It is imperative to acknowledge that respiratory-induced BSIs are the most fatal, and patients who are hospitalized and admitted to the intensive care unit (ICU) are at an elevated risk.
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Affiliation(s)
- Shahin Shah
- General Medicine, Medlife Medical Center, Abu Dhabi, ARE
| | | | - Junaid Ali
- General Medicine, Khyber Medical University, Peshawar, PAK
| | - Umair Ahmad
- Medicine, Khyber Pakhtunkhwa Health Department, Peshawar, PAK
| | - Abroo Mahmood
- Internal Medicine, Advocare North Brunswick Medical Associates, North Brunswick, USA
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Wang X, Zhang H, Zhang N, Zhang S, Shuai Y, Miao X, Liu Y, Qiu L, Ren S, Lai S, Han Y, Yao H, Zhang X, Fan F, Sun H, Yi H. Application value of metagenomic next-generation sequencing in hematological patients with high-risk febrile neutropenia. Front Cell Infect Microbiol 2024; 14:1366908. [PMID: 38725449 PMCID: PMC11079123 DOI: 10.3389/fcimb.2024.1366908] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2024] [Accepted: 04/08/2024] [Indexed: 05/12/2024] Open
Abstract
Background Metagenomic next-generation sequencing (mNGS) is a novel non-invasive and comprehensive technique for etiological diagnosis of infectious diseases. However, its practical significance has been seldom reported in the context of hematological patients with high-risk febrile neutropenia, a unique patient group characterized by neutropenia and compromised immune responses. Methods This retrospective study evaluated the results of plasma cfDNA sequencing in 164 hematological patients with high-risk febrile neutropenia. We assessed the diagnostic efficacy and clinical impact of mNGS, comparing it with conventional microbiological tests. Results mNGS identified 68 different pathogens in 111 patients, whereas conventional methods detected only 17 pathogen types in 36 patients. mNGS exhibited a significantly higher positive detection rate than conventional methods (67.7% vs. 22.0%, P < 0.001). This improvement was consistent across bacterial (30.5% vs. 9.1%), fungal (19.5% vs. 4.3%), and viral (37.2% vs. 9.1%) infections (P < 0.001 for all comparisons). The anti-infective treatment strategies were adjusted for 51.2% (84/164) of the patients based on the mNGS results. Conclusions mNGS of plasma cfDNA offers substantial promise for the early detection of pathogens and the timely optimization of anti-infective therapies in hematological patients with high-risk febrile neutropenia.
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Affiliation(s)
- Xiao Wang
- Department of Hematology, The General Hospital of Western Theater Command, Chengdu, China
| | - Huiye Zhang
- School of Pharmacy, Chengdu Medical College, Chengdu, China
- Department of Pharmacy, Chengdu Eighth People’s Hospital, Chengdu, China
| | - Nan Zhang
- Department of Hematology, The General Hospital of Western Theater Command, Chengdu, China
| | - Shan Zhang
- Department of Hematology, The General Hospital of Western Theater Command, Chengdu, China
| | - Yanrong Shuai
- Department of Hematology, The General Hospital of Western Theater Command, Chengdu, China
| | - Xiaojuan Miao
- Department of Hematology, The General Hospital of Western Theater Command, Chengdu, China
| | - Yilan Liu
- Department of Hematology, The General Hospital of Western Theater Command, Chengdu, China
| | - Ling Qiu
- Department of Hematology, The General Hospital of Western Theater Command, Chengdu, China
| | - Shihui Ren
- Department of Hematology, The General Hospital of Western Theater Command, Chengdu, China
| | - Sihan Lai
- Department of Hematology, The General Hospital of Western Theater Command, Chengdu, China
| | - Ying Han
- Department of Hematology, The General Hospital of Western Theater Command, Chengdu, China
| | - Hao Yao
- Department of Hematology, The General Hospital of Western Theater Command, Chengdu, China
| | - Xupai Zhang
- Department of Hematology, The General Hospital of Western Theater Command, Chengdu, China
| | - Fangyi Fan
- Department of Hematology, The General Hospital of Western Theater Command, Chengdu, China
| | - Haoping Sun
- Department of Hematology, The General Hospital of Western Theater Command, Chengdu, China
| | - Hai Yi
- Department of Hematology, The General Hospital of Western Theater Command, Chengdu, China
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Zhang R, Xiong Y, Zhang L, Liu L. Epidemiology, Microbiology, and Risk Factors of Bacterial Bloodstream Infections in Patients After Allogeneic Hematopoietic Stem Cell Transplantation. Infect Drug Resist 2024; 17:1561-1569. [PMID: 38660056 PMCID: PMC11041975 DOI: 10.2147/idr.s451781] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Accepted: 03/27/2024] [Indexed: 04/26/2024] Open
Abstract
Purpose To investigate the clinical characteristics, etiology, and risk factors of bacterial bloodstream infection (BSI) in allogeneic hematopoietic stem cell transplantation (allo-HSCT) recipients. This study also aimed to provide a clinical basis for early identification of high-risk patients and optimization of empirical antimicrobial treatment. Patients and Methods This is a retrospective study of clinical data during agranulocytosis from 331 patients with hematological malignancies who underwent allo-HSCT at our institute between January 2016 and December 2022. The incidence, distribution and drug resistance patterns, and the risk factors of BSI were analyzed. Results Among the 331 HSCT patients, 250 had febrile neutropenia and 45 cases were found to have BSI. The incidence of BSI in patients with agranulocytosis fever was 18% (45/250). A total of 48 pathogens were isolated during BSI episodes, gram-negative bacteria (GNB) accounted for 70.8% (34/48), gram-positive bacteria (GPB) for 29.2% (14/48). Multivariate analysis revealed that ≥grade 2 acute graft-versus-host disease (aGVHD) and previous BSI within 6 months before HSCT were independently associated with an increased occurrence of BSI. Coagulase-negative staphylococci (CoNS) and Escherichia coli were the most commonly isolated GPB and GNB, respectively. A total of 32 GNB were tested for drug susceptibility, the detection rate of carbapenem-resistant Enterobacteriaceae (CRE) was 12.5% (4/32), and extended-spectrum β-lactamase (ESBL) accounted for 56.3% (18/32). Conclusion BSIs are still a common and severe complication after allo-HSCT. In our center, BSIs in allo-HSCT patients are dominated by gram-negative bacteria and the resistance rate to carbapenem drugs is high. Risk factors for BSI during agranulocytosis were previous BSI within 6 months before HSCT and ≥grade 2 aGVHD.
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Affiliation(s)
- Ruonan Zhang
- Department of Hematology, the First Affiliated Hospital of Chongqing Medical University, Chongqing, People’s Republic of China
| | - Yiying Xiong
- Department of Hematology, the First Affiliated Hospital of Chongqing Medical University, Chongqing, People’s Republic of China
| | - Linyi Zhang
- Department of Hematology, the First Affiliated Hospital of Chongqing Medical University, Chongqing, People’s Republic of China
| | - Lin Liu
- Department of Hematology, the First Affiliated Hospital of Chongqing Medical University, Chongqing, People’s Republic of China
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Handal N, Whitworth J, Lyngbakken MN, Berdal JE, Dalgard O, Bakken Jørgensen S. Mortality and length of hospital stay after bloodstream infections caused by ESBL-producing compared to non-ESBL-producing E. coli. Infect Dis (Lond) 2024; 56:19-31. [PMID: 37795955 DOI: 10.1080/23744235.2023.2261538] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Accepted: 09/14/2023] [Indexed: 10/06/2023] Open
Abstract
OBJECTIVE To compare mortality and length of hospital stay between patients with ESBL-producing E. coli bloodstream infections (BSIs) and patients with non-ESBL E. coli BSIs. We also aimed at describing risk factors for ESBL-producing E. coli BSIs and time to effective antibiotic treatment for the two groups. METHODS A retrospective case-control study among adults admitted between 2014 and 2021 to a Norwegian University Hospital. RESULTS A total of 468 E. coli BSI episodes from 441 patients were included (234 BSIs each in the ESBL- and non-ESBL group). Among the ESBL-producing E. coli BSIs, 10.9% (25/230) deaths occurred within 30 days compared to 9.0% (21/234) in the non-ESBL group. The adjusted 30-day mortality OR was 1.6 (95% CI 0.7-3.7, p = 0.248). Effective antibiotic treatment was administered within 24 hours to 55.2% (129/234) in the ESBL-group compared to 86.8% (203/234) in the non-ESBL group. Among BSIs of urinary tract origin (n = 317), the median length of hospital stay increased by two days in the ESBL group (six versus four days, p < 0.001). No significant difference in the length of hospital stay was found for other sources of infection (n = 151), with a median of seven versus six days (p = 0.550) in the ESBL- and non-ESBL groups, respectively. CONCLUSION There was no statistically significant difference in 30-day mortality in ESBL-producing E. coli compared to non-ESBL E. coli BSI, despite a delay in the administration of an effective antibiotic in the former group. ESBL-production was associated with an increased length of stay in BSIs of urinary tract origin.
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Affiliation(s)
- Nina Handal
- Department of Microbiology and Infection Control, Division for Diagnostics and Technology, Akershus University Hospital, Lørenskog, Norway
| | - Jimmy Whitworth
- Department of Infectious Disease Epidemiology, London School of Hygiene and Tropical Medicine, United Kingdom
| | - Magnus Nakrem Lyngbakken
- Department of Infectious Diseases, Division of Medicine, Akershus University Hospital, Lørenskog, Norway
- Institute for Clinical Medicine, University of Oslo, Norway
| | - Jan Erik Berdal
- Department of Infectious Diseases, Division of Medicine, Akershus University Hospital, Lørenskog, Norway
- Institute for Clinical Medicine, University of Oslo, Norway
| | - Olav Dalgard
- Department of Infectious Diseases, Division of Medicine, Akershus University Hospital, Lørenskog, Norway
- Institute for Clinical Medicine, University of Oslo, Norway
| | - Silje Bakken Jørgensen
- Department of Microbiology and Infection Control, Division for Diagnostics and Technology, Akershus University Hospital, Lørenskog, Norway
- Department for Emergency Medicine, Division for Internal Medicine, Akershus University Hospital, Lørenskog, Norway
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Ohta T, Ueno T, Uehara Y, Yokoyama T, Nakazawa M, Sato Y, Uchida Y, Ohno Y, Sugio Y. Incidence, Etiology, Risk Factors, and Outcomes of Bloodstream Infection after a Second Hematopoietic Stem Cell Transplantation. Intern Med 2023; 62:3305-3316. [PMID: 37032079 DOI: 10.2169/internalmedicine.1666-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 04/11/2023] Open
Abstract
Objective Infections after a second hematopoietic stem cell transplantation (HSCT) occur commonly and are associated with high mortality. However, studies on bloodstream infection (BSI) after a second HSCT are lacking. We therefore evaluated the details of BSI after a second HSCT. Methods We retrospectively evaluated the incidence, etiology, risk factors, and outcomes of BSI after a second HSCT. Patients Fifty-two adult patients with hematological malignancies who underwent allogeneic HSCT, including cord blood transplantation (CBT; n=33), as the second transplantation were enrolled. The second transplantation was limited to allogeneic HSCT. Patients who underwent HSCT for graft failure were excluded. Results The median HSCT interval was 438 (range: 39-3,893) days. Overall, 31 (59.6%) patients received autologous HSCT as the first HSCT. The cumulative incidence of BSI was 40.4% at 100 days after the second HSCT, with Gram-positive bacteria accounting for the majority (30.8%) of pathogens. Overall, 92.0% of BSIs occurred during the pre-engraftment period, and Enterococcus faecium accounted for 29.6% of pathogens. On a multivariate analysis, CBT was most closely associated with pre-engraftment BSI after the second HSCT (hazard ratio: 3.43, 95% confidence interval: 1.05-11.23, p=0.042). The 1-year survival rate after the second HSCT was lower in patients with BSI than in patients without BSI (p=0.10). Conclusion BSI is common after a second HSCT, especially with CBT. During the pre-engraftment period, BSI caused by pathogens such as E. faecium should be anticipated and appropriately treated to improve transplant outcomes.
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Affiliation(s)
- Takanori Ohta
- Department of Hematology, Kitakyushu Municipal Medical Center, Japan
| | - Toshiyuki Ueno
- Department of Hematology, Kitakyushu Municipal Medical Center, Japan
| | - Yasufumi Uehara
- Department of Hematology, Kitakyushu Municipal Medical Center, Japan
| | - Takashi Yokoyama
- Department of Infectious Diseases, Kitakyushu Municipal Medical Center, Japan
| | - Megumi Nakazawa
- Department of Infectious Diseases, Kitakyushu Municipal Medical Center, Japan
| | - Yoriko Sato
- Department of Infectious Diseases, Kitakyushu Municipal Medical Center, Japan
| | - Yujiro Uchida
- Department of Infectious Diseases, Kitakyushu Municipal Medical Center, Japan
| | - Yuju Ohno
- Department of Hematology, Kitakyushu Municipal Medical Center, Japan
| | - Yasuhiro Sugio
- Department of Hematology, Kitakyushu Municipal Medical Center, Japan
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Ramos JF, Pereira AD, Seiwald MCN, Gandolpho LS, Molla VC, Guaraná M, Nouér SA, Nucci M, Rodrigues CA. Low utilization of vancomycin in febrile neutropenia: real-world evidence from 4 Brazilian centers. Support Care Cancer 2023; 31:687. [PMID: 37947888 DOI: 10.1007/s00520-023-08152-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Accepted: 10/30/2023] [Indexed: 11/12/2023]
Abstract
PURPOSE The prompt initiation of a betalactam antibiotic in febrile neutropenic patients is considered standard of care, while the empiric use of vancomycin is recommended by guidelines in specific situations, with a low level of evidence. The objective of this study was to assess the utilization of vancomycin in the management of febrile neutropenia within four Brazilian medical centers that implemented more stringent criteria for its administration. METHODS A comprehensive retrospective analysis was performed encompassing all instances of febrile neutropenia observed during the period from 2013 to 2019. The primary focus was to identify the reasons for initiating vancomycin therapy. RESULTS A total of 536 consecutive episodes of febrile neutropenia were documented, involving 384 patients with a median age of 52 years (range 18-86). Chemotherapy preceded febrile neutropenia in 59.7% of cases, while 40.3% occurred after hematopoietic stem cell transplantation. The most prevalent underlying diseases were acute myeloid leukemia (26.5%) and non-Hodgkin's lymphoma (22%). According to international guidelines, vancomycin should have been initiated at the onset of fever in 145 episodes (27%); however, it was administered in only 27 cases (5.0%). Three episodes were associated with Staphylococcus aureus bacteremia, two of which were methicillin resistant. The 15-day and 30-day mortality rates were 5.0% and 9.9%, respectively. CONCLUSIONS The results of this study underscore the notably low utilization rate of vancomycin in cases of febrile neutropenia, despite clear indications outlined in established guidelines. These findings emphasize the importance of carefully implementing guideline recommendations, considering local epidemiological factors, especially when the strength of recommendation is weak.
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Affiliation(s)
| | - André Domingues Pereira
- Universidade Federal de São Paulo, Sao Paulo, Brazil
- Instituto de Cardiologia Do Distrito Federal, Brasília, Brazil
| | | | - Larissa Simão Gandolpho
- Universidade Federal de São Paulo, Sao Paulo, Brazil
- Hospital Nove de Julho - Rede DASA, Sao Paulo, Brazil
| | - Vinicius Campos Molla
- Universidade Federal de São Paulo, Sao Paulo, Brazil
- Hospital Nove de Julho - Rede DASA, Sao Paulo, Brazil
| | - Mariana Guaraná
- Universidade Federal Do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Simone A Nouér
- Universidade Federal Do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Marcio Nucci
- Universidade Federal Do Rio de Janeiro, Rio de Janeiro, Brazil.
- , Grupo Oncoclínicas, Brazil.
| | - Celso Arrais Rodrigues
- Universidade Federal de São Paulo, Sao Paulo, Brazil
- Hospital Nove de Julho - Rede DASA, Sao Paulo, Brazil
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Liu CG, Liao AJ. [Feature analysis of different neutrophil levels on the distribution of pathogens in bloodstream infection in patients with hematologic malignancy]. ZHONGHUA XUE YE XUE ZA ZHI = ZHONGHUA XUEYEXUE ZAZHI 2023; 44:857-860. [PMID: 38049340 PMCID: PMC10694080 DOI: 10.3760/cma.j.issn.0253-2727.2023.10.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Indexed: 12/06/2023]
Affiliation(s)
- C G Liu
- Department of Hematology, Shengjing Hospital of China Medical University, Shenyang 110004, China
| | - A J Liao
- Department of Hematology, Shengjing Hospital of China Medical University, Shenyang 110004, China
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Grafia I, Chumbita M, Seguí E, Cardozo C, Laguna JC, García de Herreros M, Garcia-Pouton N, Villaescusa A, Pitart C, Rico-Caballero V, Marco-Hernández J, Zamora C, Viladot M, Padrosa J, Tuca A, Mayor-Vázquez E, Marco F, Martínez JA, Mensa J, Garcia-Vidal C, Soriano A, Puerta-Alcalde P. Epidemiology and risk factors for recurrence in biliary source bloodstream infection episodes in oncological patients. Microbiol Spectr 2023; 11:e0214223. [PMID: 37610217 PMCID: PMC10580831 DOI: 10.1128/spectrum.02142-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2023] [Accepted: 07/11/2023] [Indexed: 08/24/2023] Open
Abstract
We aimed to describe the characteristics and outcomes of biliary source bloodstream infections (BSIs) in oncological patients. Secondarily, we analyzed risk factors for recurrent BSI episodes. All episodes of biliary source BSIs in oncological patients were prospectively collected (2008-2019) and retrospectively analyzed. Logistic regression analyses were performed. A rule to stratify patients into risk groups for recurrent biliary source BSI was conducted. Four hundred biliary source BSIs were documented in 291 oncological patients. The most frequent causative agents were Escherichia coli (42%) and Klebsiella spp. (27%), and 86 (21.5%) episodes were caused by multidrug-resistant Gram-negative bacilli (MDR-GNB). The rates of MDR-GNB increased over time. Overall, 73 patients developed 118 recurrent BSI episodes. Independent risk factors for recurrent BSI episodes were prior antibiotic therapy (OR 3.781, 95% CI 1.906-7.503), biliary prosthesis (OR 2.232, 95% CI 1.157-4.305), prior admission due to suspected biliary source infection (OR 4.409, 95% CI 2.338-8.311), and BSI episode caused by an MDR-GNB (OR 2.857, 95% CI 1.389-5.874). With these variables, a score was generated that predicted recurrent biliary source BSI with an area under the receiver operating characteristic (ROC) curve of 0.819. Inappropriate empirical antibiotic treatment (IEAT) was administered in 23.8% of patients, and 30-d mortality was 19.5%. As a conclusion, biliary source BSI in oncological patients is mainly caused by GNB, with high and increasing MDR rates, frequent IEAT, and high mortality. Recurrent BSI episodes are frequent. A simple score to identify recurrent episodes was developed to potentially establish prophylactic strategies. IMPORTANCE This study shows that biliary source bloodstream infections (BSIs) in oncological patients are mainly caused by Gram-negative bacilli (GNB), with high and increasing rates of multidrug resistance. Importantly, recurrent biliary source BSI episodes were very frequent and associated with delays in chemotherapy, high rates of inappropriate empirical antibiotic therapy, and high 30-d mortality (19.5%). Using the variable independently associated with recurrent BSI episodes, a score was generated that predicted recurrent biliary source BSI with high accuracy. This score could be used to establish prophylactic strategies and lower the risk of relapsing episodes and the associated morbidity and mortality.
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Affiliation(s)
- Ignacio Grafia
- Medical Oncology Department, Hospital Clínic-IDIBAPS, Barcelona, Spain
| | - Mariana Chumbita
- Infectious Diseases Department, Hospital Clínic-IDIBAPS, Barcelona, Spain
| | - Elia Seguí
- Medical Oncology Department, Hospital Clínic-IDIBAPS, Barcelona, Spain
| | - Celia Cardozo
- Infectious Diseases Department, Hospital Clínic-IDIBAPS, Barcelona, Spain
| | | | | | | | - Ana Villaescusa
- Medical Oncology Department, Hospital Clínic-IDIBAPS, Barcelona, Spain
| | - Cristina Pitart
- Microbiology Department, Centre Diagnòstic Biomèdic, Hospital Clínic, Barcelona, Spain
| | | | - Javier Marco-Hernández
- Internal Medicine Department, Supportive and Palliative Care in Cancer Unit, Hospital Clínic, Barcelona, Spain
| | - Carles Zamora
- Medical Oncology Department, Hospital Clínic-IDIBAPS, Barcelona, Spain
| | - Margarita Viladot
- Medical Oncology Department, Hospital Clínic-IDIBAPS, Barcelona, Spain
| | - Joan Padrosa
- Medical Oncology Department, Hospital Clínic-IDIBAPS, Barcelona, Spain
| | - Albert Tuca
- Medical Oncology Department, Hospital Clínic-IDIBAPS, Barcelona, Spain
| | - Eric Mayor-Vázquez
- Medical Intensive Care Unit, Internal Medicine Department, Hospital Clínic-IDIBAPS, Barcelona, Spain
| | - Francesc Marco
- Microbiology Department, Centre Diagnòstic Biomèdic, Hospital Clínic, Barcelona, Spain
- ISGlobal, Hospital Clínic - Universitat de Barcelona, Barcelona, Spain
| | - Jose A. Martínez
- Infectious Diseases Department, Hospital Clínic-IDIBAPS, Barcelona, Spain
- University of Barcelona, Barcelona, Spain
| | - Josep Mensa
- Infectious Diseases Department, Hospital Clínic-IDIBAPS, Barcelona, Spain
| | - Carolina Garcia-Vidal
- Infectious Diseases Department, Hospital Clínic-IDIBAPS, Barcelona, Spain
- University of Barcelona, Barcelona, Spain
- CIBERINF, CIBER in Infectious Diseases, Barcelona, Spain
| | - Alex Soriano
- Infectious Diseases Department, Hospital Clínic-IDIBAPS, Barcelona, Spain
- University of Barcelona, Barcelona, Spain
- CIBERINF, CIBER in Infectious Diseases, Barcelona, Spain
| | - Pedro Puerta-Alcalde
- Infectious Diseases Department, Hospital Clínic-IDIBAPS, Barcelona, Spain
- University of Barcelona, Barcelona, Spain
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10
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Chumbita M, Puerta-Alcalde P, Yáñez L, Angeles Cuesta M, Chinea A, Español-Morales I, Fernandez-Abellán P, Gudiol C, González-Sierra P, Rojas R, Sánchez-Pina JM, Vadillo IS, Sánchez M, Varela R, Vázquez L, Guerreiro M, Monzo P, Lopera C, Aiello TF, Peyrony O, Soriano A, Garcia-Vidal C. High Rate of Inappropriate Antibiotics in Patients with Hematologic Malignancies and Pseudomonas aeruginosa Bacteremia following International Guideline Recommendations. Microbiol Spectr 2023; 11:e0067423. [PMID: 37367629 PMCID: PMC10434044 DOI: 10.1128/spectrum.00674-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Accepted: 05/27/2023] [Indexed: 06/28/2023] Open
Abstract
Optimal coverage of Pseudomonas aeruginosa is challenging in febrile neutropenic patients due to a progressive increase in antibiotic resistance worldwide. We aimed to detail current rates of resistance to antibiotics recommended by international guidelines for P. aeruginosa isolated from bloodstream infections (BSI) in patients with hematologic malignancies. Secondarily, we aimed to describe how many patients received inappropriate empirical antibiotic treatment (IEAT) and its impact on mortality. We conducted a retrospective, multicenter cohort study of the last 20 BSI episodes caused by P. aeruginosa in patients with hematologic malignancies from across 14 university hospitals in Spain. Of the 280 patients with hematologic malignancies and BSI caused by P. aeruginosa, 101 (36%) had strains resistant to at least one of the β-lactam antibiotics recommended in international guidelines, namely, cefepime, piperacillin-tazobactam, and meropenem. Additionally, 21.1% and 11.4% of the strains met criteria for MDR and XDR P. aeruginosa, respectively. Even if international guidelines were followed in most cases, 47 (16.8%) patients received IEAT and 66 (23.6%) received inappropriate β-lactam empirical antibiotic treatment. Thirty-day mortality was 27.1%. In the multivariate analysis, pulmonary source (OR 2.22, 95% CI 1.14 to 4.34) and IEAT (OR 2.67, 95% CI 1.37 to 5.23) were factors independently associated with increased mortality. We concluded that P. aeruginosa-causing BSI in patients with hematologic malignancies is commonly resistant to antibiotics recommended in international guidelines, which is associated with frequent IEAT and higher mortality. New therapeutic strategies are needed. IMPORTANCE Bloodstream infection (BSI) caused by P. aeruginosa is related with an elevated morbidity and mortality in neutropenic patients. For this reason, optimal antipseudomonal coverage has been the basis of all historical recommendations in the empirical treatment of febrile neutropenia. However, in recent years the emergence of multiple types of antibiotic resistances has posed a challenge in treating infections caused by this microorganism. In our study we postulated that P. aeruginosa-causing BSI in patients with hematologic malignancies is commonly resistant to antibiotics recommended in international guidelines. This observation is associated with frequent IEAT and increased mortality. Consequently, there is a need for a new therapeutic strategy.
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Affiliation(s)
- Mariana Chumbita
- Hospital Clínic de Barcelona-IDIBAPS, Universitat de Barcelona, Barcelona, Spain
| | - Pedro Puerta-Alcalde
- Hospital Clínic de Barcelona-IDIBAPS, Universitat de Barcelona, Barcelona, Spain
| | - Lucrecia Yáñez
- Hospital Universitario Marqués de Valdecilla, Santander, Spain
| | | | | | | | | | - Carlota Gudiol
- Hospital Universitario de Bellvitge, Institut Català d'Oncologia, IDIBELL, l'Hospitalet de Llobregat, Barcelona, Spain
| | | | - Rafael Rojas
- Hospital Universitario Reina Sofia, Córdoba, Spain
| | | | | | | | | | - Lourdes Vázquez
- Complejo Asistencial Universitario de Salamanca, Salamanca, Spain
| | | | - Patricia Monzo
- Hospital Clínic de Barcelona-IDIBAPS, Universitat de Barcelona, Barcelona, Spain
| | - Carlos Lopera
- Hospital Clínic de Barcelona-IDIBAPS, Universitat de Barcelona, Barcelona, Spain
| | | | - Oliver Peyrony
- Hospital Clínic de Barcelona-IDIBAPS, Universitat de Barcelona, Barcelona, Spain
- Emergency Department, Hôpital Saint-Louis, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - Alex Soriano
- Hospital Clínic de Barcelona-IDIBAPS, Universitat de Barcelona, Barcelona, Spain
- Centro de Investigación Biomédica en Red (CIBER) de Enfermedades Infecciosas, Barcelona, Spain
| | - Carolina Garcia-Vidal
- Hospital Clínic de Barcelona-IDIBAPS, Universitat de Barcelona, Barcelona, Spain
- Centro de Investigación Biomédica en Red (CIBER) de Enfermedades Infecciosas, Barcelona, Spain
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11
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Wang S, Song Y, Shi N, Yin D, Kang J, Cai W, Duan J. Characteristics, Outcomes, and Clinical Indicators of Bloodstream Infections in Neutropenic Patients with Hematological Malignancies: A 7-Year Retrospective Study. Infect Drug Resist 2023; 16:4471-4487. [PMID: 37449245 PMCID: PMC10337688 DOI: 10.2147/idr.s413454] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Accepted: 06/27/2023] [Indexed: 07/18/2023] Open
Abstract
Purpose The aim of this study was to investigate the current epidemiology, its changes during the study years, and inflammatory biomarkers of bacterial bloodstream infections (BSIs) in neutropenic patients with hematological malignancies. We assessed mortality risk factors and multidrug-resistant (MDR) gram-negative BSI predictors. Patients and Methods We conducted a retrospective study from January 2015 to December 2021, which included adult neutropenic oncohematological patients with confirmed BSIs. We used univariable and multivariable analyses to analyze the risk factors. Each index's reliability for bacterial BSI diagnosis was assessed using the receiver-operating characteristic curve and area under the curve. Results A total of 514 isolates were obtained from the 452 patients. The average mortality was 17.71%. Gram-negative organisms were the predominant causes of BSI. Escherichia coli was the most common microorganism (49.90%). The overall variation trend of the isolation rate of MDR and carbapenem-resistant gram-negative bacteria increased. Multivariate analysis indicated that: 1) neutropenia that lasted for more than 7 days, patients ≥ 60 years of age, septic shock, hospitalization for >20 days, BSI with a carbapenem-resistant strain, and treatment with linezolid or vancomycin in infections lasting less than 30 days were independent mortality risk factors; 2) severe neutropenia exceeding 7 days, unreasonable empirical therapy, and receipt of aminoglycosides or 3rd or 4th generation cephalosporins in infections lasting less than 30 days were independent risk factors of MDR gram-negative bacteria. Procalcitonin, absolute neutrophil count, and white blood cell indicate higher diagnostic accuracy for BSIs. Moreover, bacteria time to detection was better at differentiating Gram-negative and Gram-positive bacterial infections. Conclusion We analyzed the risk factors for BSI neutropenic patients with hematological malignancies, the distribution of bacteria, antibiotic resistance, and the changes in clinical parameters. This single-center retrospective study may provide clinicians with novel insights into the diagnosis and treatment of BSI to improve future clinical outcomes.
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Affiliation(s)
- Shuyun Wang
- Department of Pharmacy, Second Hospital of Shanxi Medical University, Taiyuan, Shanxi, People’s Republic of China
| | - Yan Song
- Department of Pharmacy, Second Hospital of Shanxi Medical University, Taiyuan, Shanxi, People’s Republic of China
| | - Nan Shi
- Department of Pharmacy, Second Hospital of Shanxi Medical University, Taiyuan, Shanxi, People’s Republic of China
- Department of Pharmacy, School of Pharmacy, Shanxi Medical University, Taiyuan, Shanxi, People’s Republic of China
| | - Donghong Yin
- Department of Pharmacy, Second Hospital of Shanxi Medical University, Taiyuan, Shanxi, People’s Republic of China
| | - Jianbang Kang
- Department of Pharmacy, Second Hospital of Shanxi Medical University, Taiyuan, Shanxi, People’s Republic of China
| | - Wanni Cai
- Department of Pharmacy, School of Pharmacy, Shanxi Medical University, Taiyuan, Shanxi, People’s Republic of China
| | - Jinju Duan
- Department of Pharmacy, Second Hospital of Shanxi Medical University, Taiyuan, Shanxi, People’s Republic of China
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12
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Danielsen AS, Franconeri L, Page S, Myhre AE, Tornes RA, Kacelnik O, Bjørnholt JV. Clinical outcomes of antimicrobial resistance in cancer patients: a systematic review of multivariable models. BMC Infect Dis 2023; 23:247. [PMID: 37072711 PMCID: PMC10114324 DOI: 10.1186/s12879-023-08182-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Accepted: 03/17/2023] [Indexed: 04/20/2023] Open
Abstract
BACKGROUND Infections are major causes of disease in cancer patients and pose a major obstacle to the success of cancer care. The global rise of antimicrobial resistance threatens to make these obstacles even greater and hinder continuing progress in cancer care. To prevent and handle such infections, better models of clinical outcomes building on current knowledge are needed. This internally funded systematic review (PROSPERO registration: CRD42021282769) aimed to review multivariable models of resistant infections/colonisations and corresponding mortality, what risk factors have been investigated, and with what methodological approaches. METHODS We employed two broad searches of antimicrobial resistance in cancer patients, using terms associated with antimicrobial resistance, in MEDLINE and Embase through Ovid, in addition to Cinahl through EBSCOhost and Web of Science Core Collection. Primary, observational studies in English from January 2015 to November 2021 on human cancer patients that explicitly modelled infection/colonisation or mortality associated with antimicrobial resistance in a multivariable model were included. We extracted data on the study populations and their malignancies, risk factors, microbial aetiology, and methods for variable selection, and assessed the risk of bias using the NHLBI Study Quality Assessment Tools. RESULTS Two searches yielded a total of 27,151 unique records, of which 144 studies were included after screening and reading. Of the outcomes studied, mortality was the most common (68/144, 47%). Forty-five per cent (65/144) of the studies focused on haemato-oncological patients, and 27% (39/144) studied several bacteria or fungi. Studies included a median of 200 patients and 46 events. One-hundred-and-three (72%) studies used a p-value-based variable selection. Studies included a median of seven variables in the final (and largest) model, which yielded a median of 7 events per variable. An in-depth example of vancomycin-resistant enterococci was reported. CONCLUSIONS We found the current research to be heterogeneous in the approaches to studying this topic. Methodological choices resulting in very diverse models made it difficult or even impossible to draw statistical inferences and summarise what risk factors were of clinical relevance. The development and adherence to more standardised protocols that build on existing literature are urgent.
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Affiliation(s)
- Anders Skyrud Danielsen
- Department of Microbiology, Oslo University Hospital, Oslo, Norway.
- Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway.
| | - Léa Franconeri
- Department of Infection Control and Preparedness, Norwegian Institute of Public Health, Oslo, Norway
- ECDC Fellowship Programme, Field Epidemiology Path (EPIET), European Centre for Disease Prevention and Control, (ECDC), Stockholm, Sweden
| | - Samantha Page
- Department of Infection Control and Preparedness, Norwegian Institute of Public Health, Oslo, Norway
| | | | - Ragnhild Agathe Tornes
- The Library for the Healthcare Administration, Norwegian Institute of Public Health, Oslo, Norway
| | - Oliver Kacelnik
- Department of Infection Control and Preparedness, Norwegian Institute of Public Health, Oslo, Norway
| | - Jørgen Vildershøj Bjørnholt
- Department of Microbiology, Oslo University Hospital, Oslo, Norway
- Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway
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Zavrelova A, Sima M, Malakova J, Rozsivalova P, Paterova P, Zak P, Visek B, Michalickova D, Slanar O, Radocha J. Superiority of ceftazidime off-label high-dose regimen in PK/PD target attainment during treatment of extensively drug-resistant Pseudomonas aeruginosa infections in cancer patients. Br J Clin Pharmacol 2023; 89:1452-1461. [PMID: 36422512 DOI: 10.1111/bcp.15612] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Revised: 11/06/2022] [Accepted: 11/21/2022] [Indexed: 11/25/2022] Open
Abstract
AIM The objective of this study was to evaluate off-label high-dose ceftazidime population pharmacokinetics in cancer patients with suspected or proven extensively drug-resistant (XDR) Pseudomonas aeruginosa infections and then to compare the achievement of the pharmacokinetic/pharmacodynamic (PK/PD) target after standard and off-label high-dose regimens using population model-based simulations. A further aim was to clinically observe the occurrence of adverse effects during the off-label high-dose ceftazidime treatment. METHODS In patients treated with off-label high-dose ceftazidime (3 g every 6 h), blood samples were collected and ceftazidime serum levels measured using LC-MS/MS. A pharmacokinetic population model was developed using a nonlinear mixed-effects modelling approach and Monte Carlo simulations were then used to compare standard and high-dose regimens for PK/PD target attainment. RESULTS A total of 14 cancer patients with serious infection suspected of XDR P. aeruginosa aetiology were eligible for PK analysis. XDR P. aeruginosa was confirmed in 10 patients as the causative pathogen. Population ceftazidime volume of distribution was 13.23 L, while clearance started at the baseline of 1.48 L/h and increased by 0.0076 L/h with each 1 mL/min/1.73 m2 of eGFR. High-dose regimen showed significantly higher probability of target attainment (i.e., 86% vs. 56% at MIC of 32 mg/L). This was translated into a very low mortality rate of 20%. Only one case of reversible neurological impairment was observed. CONCLUSION We proved the superiority of the ceftazidime off-label high-dose regimen in PK/PD target attainment with very low occurrence of adverse effects. The off-label high-dose regimen should be used to optimize treatment of XDR P. aeruginosa infections.
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Affiliation(s)
- Alzbeta Zavrelova
- 4th Department of Internal Medicine - Hematology, University Hospital Hradec Kralove and Faculty of Medicine in Hradec Kralove, Charles University, Hradec Kralove, Czech Republic
| | - Martin Sima
- Department of Pharmacology, First Faculty of Medicine, Charles University and General University Hospital in Prague, Prague, Czech Republic
| | - Jana Malakova
- Institute of Clinical Biochemistry, University Hospital Hradec Kralove and Charles University in Prague, Faculty of Medicine in Hradec Kralove, Hradec Kralove, Czech Republic
| | - Petra Rozsivalova
- Department of Clinical Pharmacy, Hospital Pharmacy, Faculty of Pharmacy in Hradec Kralove, Charles University and University Hospital Hradec Kralove, Hradec Kralove, Czech Republic
| | - Pavla Paterova
- Department of Clinical Microbiology, University Hospital Hradec Kralove and Faculty of Medicine in Hradec Kralove, Charles University, Hradec Kralove, Czech Republic
| | - Pavel Zak
- 4th Department of Internal Medicine - Hematology, University Hospital Hradec Kralove and Faculty of Medicine in Hradec Kralove, Charles University, Hradec Kralove, Czech Republic
| | - Benjamin Visek
- 4th Department of Internal Medicine - Hematology, University Hospital Hradec Kralove and Faculty of Medicine in Hradec Kralove, Charles University, Hradec Kralove, Czech Republic
| | - Danica Michalickova
- Department of Pharmacology, First Faculty of Medicine, Charles University and General University Hospital in Prague, Prague, Czech Republic
| | - Ondrej Slanar
- Department of Pharmacology, First Faculty of Medicine, Charles University and General University Hospital in Prague, Prague, Czech Republic
| | - Jakub Radocha
- 4th Department of Internal Medicine - Hematology, University Hospital Hradec Kralove and Faculty of Medicine in Hradec Kralove, Charles University, Hradec Kralove, Czech Republic
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Dietl B, Boix-Palop L, Gisbert L, Mateu A, Garreta G, Xercavins M, Badía C, López-Sánchez M, Pérez J, Calbo E. Risk factors associated with inappropriate empirical antimicrobial treatment in bloodstream infections. A cohort study. Front Pharmacol 2023; 14:1132530. [PMID: 37063300 PMCID: PMC10091116 DOI: 10.3389/fphar.2023.1132530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Accepted: 03/13/2023] [Indexed: 03/31/2023] Open
Abstract
Introduction: Bloodstream infections (BSI) are a major cause of mortality all over the world. Inappropriate empirical antimicrobial treatment (i-EAT) impact on mortality has been largely reported. However, information on related factors for the election of i-EAT in the treatment of BSI in adults is lacking. The aim of the study was the identification of risk-factors associated with the use of i-EAT in BSI. Methods: A retrospective, observational cohort study, from a prospective database was conducted in a 400-bed acute-care teaching hospital including all BSI episodes in adult patients between January and December 2018. The main outcome variable was EAT appropriation. Multivariate analysis using logistic regression was performed. Results: 599 BSI episodes were included, 146 (24%) received i-EAT. Male gender, nosocomial and healthcare-associated acquisition of infection, a high Charlson Comorbidity Index (CCI) score and the isolation of multidrug resistant (MDR) microorganisms were more frequent in the i-EAT group. Adequation to local guidelines' recommendations on EAT resulted in 91% of appropriate empirical antimicrobial treatment (a-EAT). Patients receiving i-EAT presented higher mortality rates at day 14 and 30 when compared to patients with a-EAT (14% vs. 6%, p = 0.002 and 22% vs. 9%, p < 0.001 respectively). In the multivariate analysis, a CCI score ≥3 (OR 1.90 (95% CI 1.16-3.12) p = 0.01) and the isolation of a multidrug resistant (MDR) microorganism (OR 3.79 (95% CI 2.28-6.30), p < 0.001) were found as independent risk factors for i-EAT. In contrast, female gender (OR 0.59 (95% CI 0.35-0.98), p = 0.04), a correct identification of clinical syndrome prior to antibiotics administration (OR 0.26 (95% CI 0.16-0.44), p < 0.001) and adherence to local guidelines (OR 0.22 (95% CI 0.13-0.38), p < 0.001) were identified as protective factors against i-EAT. Conclusion: One quarter of BSI episodes received i-EAT. Some of the i-EAT related factors were unmodifiable (male gender, CCI score ≥3 and isolation of a MDR microorganism) but others (incorrect identification of clinical syndrome before starting EAT or the use of local guidelines for EAT) could be addressed to optimize the use of antimicrobials.
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Affiliation(s)
- Beatriz Dietl
- Department of Infectious Diseases, Hospital Universitari Mútua de Terrassa, Barcelona, Spain
| | - Lucía Boix-Palop
- Department of Infectious Diseases, Hospital Universitari Mútua de Terrassa, Barcelona, Spain
- Faculty of Medicine, Infectious Diseases, Universitat Internacional de Catalunya, Barcelona, Spain
| | - Laura Gisbert
- Department of Infectious Diseases, Hospital Universitari Mútua de Terrassa, Barcelona, Spain
| | - Aina Mateu
- Department of Infectious Diseases, Hospital Universitari Mútua de Terrassa, Barcelona, Spain
| | - Gemma Garreta
- Department of Clinical Pharmacy, Hospital Universitari Mútua de Terrassa, Barcelona, Spain
| | | | - Cristina Badía
- Department of Infectious Diseases, Hospital Universitari Mútua de Terrassa, Barcelona, Spain
| | - María López-Sánchez
- Infection Control Nursing Team, Hospital Universitari Mútua de Terrassa, Barcelona, Spain
| | - Josefa Pérez
- CatLab, Department of Microbiology, Barcelona, Spain
| | - Esther Calbo
- Department of Infectious Diseases, Hospital Universitari Mútua de Terrassa, Barcelona, Spain
- Faculty of Medicine, Infectious Diseases, Universitat Internacional de Catalunya, Barcelona, Spain
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15
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Micozzi A, Minotti C, Capria S, Cartoni C, Trisolini SM, Assanto GM, Barberi W, Moleti ML, Santilli S, Martelli M, Gentile G. Benefits and Safety of Empiric Antibiotic Treatment Active Against KPC- K. pneumoniae in Febrile Neutropenic Patients with Acute Leukemia Who are Colonized with KPC- K. pneumoniae. A 7-Years Retrospective Observational Cohort Study. Infect Drug Resist 2023; 16:695-704. [PMID: 36747900 PMCID: PMC9899007 DOI: 10.2147/idr.s393802] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Accepted: 12/23/2022] [Indexed: 02/01/2023] Open
Abstract
Purpose To evaluate the benefits and safety of the empiric antibiotic treatment (EAT) active against KPC-K. pneumoniae in febrile neutropenic patients with acute leukaemia (AL) who are colonised by KPC-K. pneumoniae. Patients and Methods A 7-year (2013-2019) retrospective observational cohort study was conducted at the Haematology, Sapienza Rome University (Italy) on 94 febrile neutropenia episodes (FNE) in AL patients KPC-K. pneumoniae carriers treated with active EAT. Results Eighty-two (87%) FNE were empirically treated with antibiotic combinations [38 colistin-based and 44 ceftazidime-avibactam (CAZAVI)-based], 12 with CAZAVI monotherapy. Successful outcomes were observed in 88/94 (94%) FNE, 46/49 (94%) microbiologically documented infections, and 24/27 (89%) gram-negative bloodstream infections (GNB-BSI). Mortality due to infective causes was 4.2% (2.1% within 1 week). KPC-K. pneumoniae infections caused 28/94 FNE (30%) and KPC-K. pneumoniae-BSI was documented in 22 FNE (23.4%) (85% of GNB-BSI), in all cases patients received active EAT, and 21 survived. KPC-K.pneumoniae-BSI mortality rate was 4.5%. CAZAVI-based EAT showed better results than colistin-based EAT (55/56 vs 33/38, p = 0.037), overall and without EAT modification (41/56 vs 20/38, p = 0.02). Empirical combinations including CAZAVI were successful in 98% of cases (43/44 vs 33/38 for colistin-based EAT, p = 0.01), without modifications in 82% (36/44 vs 20/28, p = 0.02). All deaths occurred in patients treated with colistin-based EAT (4/38 vs 0/56, p = 0.02). CAZAVI-containing EAT was the only independent factor for an overall successful response (HR 0.058, CI 0.013-1.072, p = 0.058). Nephrotoxicity occurred in 3(8%) patients undergoing colistin-based EAT (none in those undergoing CAZAVI-based EAT, p = 0.02). Conclusion KPC-K. pneumoniae infections are frequent in colonised AL patients with FNE. EAT with active antibiotics, mainly CAZAVI-based combinations, was effective, safe, and associated with low overall and KPC-K. pneumoniae-BSI-related mortality.
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Affiliation(s)
- Alessandra Micozzi
- Haematology, Department of Translational and Precision Medicine, Sapienza University of Rome, Rome, Italy,Correspondence: Alessandra Micozzi, Haematology, Department of Translational and Precision Medicine, Sapienza University of Rome, Via Benevento 6, Rome, 00161, Italy, Tel +39 6 857951, Fax +39 6 44241984, Email
| | - Clara Minotti
- Department of Haematology, Oncology and Dermatology, Azienda Policlinico Umberto I, Rome, Italy
| | - Saveria Capria
- Department of Haematology, Oncology and Dermatology, Azienda Policlinico Umberto I, Rome, Italy
| | - Claudio Cartoni
- Department of Haematology, Oncology and Dermatology, Azienda Policlinico Umberto I, Rome, Italy
| | - Silvia Maria Trisolini
- Department of Haematology, Oncology and Dermatology, Azienda Policlinico Umberto I, Rome, Italy
| | - Giovanni Manfredi Assanto
- Haematology, Department of Translational and Precision Medicine, Sapienza University of Rome, Rome, Italy
| | - Walter Barberi
- Department of Haematology, Oncology and Dermatology, Azienda Policlinico Umberto I, Rome, Italy
| | - Maria Luisa Moleti
- Department of Haematology, Oncology and Dermatology, Azienda Policlinico Umberto I, Rome, Italy
| | - Stefania Santilli
- Department of Diagnostics, Azienda Policlinico Umberto I, Rome, Italy
| | - Maurizio Martelli
- Haematology, Department of Translational and Precision Medicine, Sapienza University of Rome, Rome, Italy
| | - Giuseppe Gentile
- Haematology, Department of Translational and Precision Medicine, Sapienza University of Rome, Rome, Italy
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16
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Better Outcome of Off-Label High-Dose Ceftazidime in Hemato-Oncological Patients with Infections Caused by Extensively Drug-Resistant Pseudomonas Aeruginosa. Mediterr J Hematol Infect Dis 2023; 15:e2023001. [PMID: 36660352 PMCID: PMC9833305 DOI: 10.4084/mjhid.2023.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Accepted: 12/09/2022] [Indexed: 01/03/2023] Open
Abstract
Background P. aeruginosa sepsis in immunocompromised patients is a serious complication of cancer treatment, especially in the case of an Extensively Drug Resistant (XDR) pathogen. The aim of the study is to evaluate the efficacy of high-dose ceftazidime in the treatment of XDR P. aeruginosa infection and to compare it with the conventionally treated cohort in hemato-oncological patients. Methods We identified 27 patients with XDR P. aeruginosa infection during the 2008-2018 period, 16 patients served as a conventionally treated cohort with an antipseudomonal beta-lactam antibiotic in standard dose (cohort A), and 11 patients were treated with high-dose ceftazidime (cohort B). Most of the patients were neutropenic and under active treatment for their cancer in both cohorts. Results Mortality and related mortality were statistically significantly better for cohort B than cohort A; it was 18.2% and 9.1% for cohort B and 68.8% and 68.8% for cohort A, respectively. More patients in cohort A needed mechanical ventilation and renal replacement therapy, 75% and 50% for cohort A and 27.3% and 9.9% for cohort B, respectively. It corresponded well with the worst sequential organ failure score (SOFA) in cohort A compared to cohort B, 16 versus 7, respectively. Reversible neurotoxicity was seen only in two patients in cohort B. Conclusion Ceftazidime in high doses is a very potent antibiotic (ATB) for treating XDR P. aeruginosa infections in neutropenic cancer with acceptable toxicity.
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Guidance of empirical antimicrobial therapy by surveillance cultures in high-risk neutropenic patients: a retrospective cohort study. Antimicrob Resist Infect Control 2022; 11:160. [PMID: 36529742 PMCID: PMC9759862 DOI: 10.1186/s13756-022-01198-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Accepted: 12/07/2022] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND In neutropenic patients, bloodstream infections (BSI) significantly contribute to morbidity and mortality. Appropriate empirical antibiotic therapy (EAT) of BSI is essential, at the same time overconsumption of very broad-spectrum antibiotics should be avoided. We investigated: (1) whether surveillance cultures can predict BSI with third-generation cephalosporin -resistant Enterobacterales and Pseudomonas aeruginosa (3GC-R), (2) the effect of inappropriate empirical antimicrobial therapy (IEAT) on clinical outcome and (3) the potential reduction of carbapenem use when using surveillance cultures to guide therapy. METHODS Retrospective study of adult patients with haematological malignancies with febrile episodes during chemotherapy-induced high-risk neutropenia in whom surveillance cultures were collected weekly. IEAT was defined as the absence of in vitro susceptibility of blood-isolates to the administered EAT. Clinical outcome (ICU admission and death) was evaluated within 30 days. RESULTS A total of 673 febrile episodes occurred among 372 high-risk neutropenic patients. BSI was present in 20.1% (135/673), of which 25.9% (35/135) were due to Enterobacterales and P. aeruginosa. Of these, 17/35 were 3GC-R and 70.6% (12/17) were preceded by 3GC-R colonization. Negative predictive value of surveillance cultures for 3GC-R BSI was 99.1%. IEAT due to (3GC-R) BSI was not significantly associated with clinical outcome. Using surveillance cultures to guide EAT could potentially reduce carbapenem use by 82.8%, when compared to standard EAT with carbapenem. CONCLUSIONS This retrospective analysis shows that in patients with high-risk neutropenia, surveillance cultures can potentially reduce the use of carbapenems with infrequent IEAT for 3GC-R BSI and no negative impact on clinical outcome.
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Lin H, Gao Y, Qiu Y, Zhu H, Zhang S, Summah HD, Shi G, Cheng T, Yang Z, Feng Y. The Prognostic Factors of Bloodstream Infection in Immunosuppressed Elderly Patients: A Retrospective, Single-center, Five-year Cohort Study. Clin Interv Aging 2022; 17:1647-1656. [DOI: 10.2147/cia.s386922] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Accepted: 11/06/2022] [Indexed: 11/19/2022] Open
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19
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Royo-Cebrecos C, Laporte-Amargós J, Peña M, Ruiz-Camps I, Puerta-Alcalde P, Abdala E, Oltolini C, Akova M, Montejo M, Mikulska M, Martín-Dávila P, Herrera F, Gasch O, Drgona L, Morales HMP, Brunel AS, García E, Isler B, Kern WV, Palacios-Baena ZR, de la Calle GM, Montero MM, Kanj SS, Sipahi OR, Calik S, Márquez-Gómez I, Marin JI, Gomes MZR, Hemmatti P, Araos R, Peghin M, del Pozo JL, Yáñez L, Tilley R, Manzur A, Novo A, Carratalà J, Gudiol C. Pseudomonas aeruginosa Bloodstream Infections in Patients with Cancer: Differences between Patients with Hematological Malignancies and Solid Tumors. Pathogens 2022; 11:pathogens11101132. [PMID: 36297188 PMCID: PMC9610728 DOI: 10.3390/pathogens11101132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Revised: 09/21/2022] [Accepted: 09/23/2022] [Indexed: 11/30/2022] Open
Abstract
Objectives: To assess the clinical features and outcomes of Pseudomonas aeruginosa bloodstream infection (PA BSI) in neutropenic patients with hematological malignancies (HM) and with solid tumors (ST), and identify the risk factors for 30-day mortality. Methods: We performed a large multicenter, retrospective cohort study including onco-hematological neutropenic patients with PA BSI conducted across 34 centers in 12 countries (January 2006−May 2018). Episodes occurring in hematologic patients were compared to those developing in patients with ST. Risk factors associated with 30-day mortality were investigated in both groups. Results: Of 1217 episodes of PA BSI, 917 occurred in patients with HM and 300 in patients with ST. Hematological patients had more commonly profound neutropenia (0.1 × 109 cells/mm) (67% vs. 44.6%; p < 0.001), and a high risk Multinational Association for Supportive Care in Cancer (MASCC) index score (32.2% vs. 26.7%; p = 0.05). Catheter-infection (10.7% vs. 4.7%; p = 0.001), mucositis (2.4% vs. 0.7%; p = 0.042), and perianal infection (3.6% vs. 0.3%; p = 0.001) predominated as BSI sources in the hematological patients, whereas pneumonia (22.9% vs. 33.7%; p < 0.001) and other abdominal sites (2.8% vs. 6.3%; p = 0.006) were more common in patients with ST. Hematological patients had more frequent BSI due to multidrug-resistant P. aeruginosa (MDRPA) (23.2% vs. 7.7%; p < 0.001), and were more likely to receive inadequate initial antibiotic therapy (IEAT) (20.1% vs. 12%; p < 0.001). Patients with ST presented more frequently with septic shock (45.8% vs. 30%; p < 0.001), and presented worse outcomes, with increased 7-day (38% vs. 24.2%; p < 0.001) and 30-day (49% vs. 37.3%; p < 0.001) case-fatality rates. Risk factors for 30-day mortality in hematologic patients were high risk MASCC index score, IEAT, pneumonia, infection due to MDRPA, and septic shock. Risk factors for 30-day mortality in patients with ST were high risk MASCC index score, IEAT, persistent BSI, and septic shock. Therapy with granulocyte colony-stimulating factor was associated with survival in both groups. Conclusions: The clinical features and outcomes of PA BSI in neutropenic cancer patients showed some differences depending on the underlying malignancy. Considering these differences and the risk factors for mortality may be useful to optimize their therapeutic management. Among the risk factors associated with overall mortality, IEAT and the administration of granulocyte colony-stimulating factor were the only modifiable variables.
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Affiliation(s)
- Cristina Royo-Cebrecos
- Internal Medicine Department, Hospital Nostra Senyora de Meritxell, Andorra Health Services (SAAS), AD700 Escaldes-Engordany, Andorra
| | - Julia Laporte-Amargós
- Infectious Diseases Department, Bellvitge University Hospital, IDIBELL, University of Barcelona, 08907 Barcelona, Spain
- Institut Català d’Oncologia (ICO), Hospital Duran i Reynals, IDIBELL, 08907 Barcelona, Spain
| | - Marta Peña
- Hematology Department, Institut Català d’Oncologia (ICO)–Hospital Duran i Reynals, IDIBELL, 08907 Barcelona, Spain
| | - Isabel Ruiz-Camps
- Infectious Diseases Department, Vall d’Hebron University Hospital, 08035 Barcelona, Spain
| | - Pedro Puerta-Alcalde
- Infectious Diseases Department, Hospital Clínic i Provincial, 08035 Barcelona, Spain
| | - Edson Abdala
- Instituto do Câncer do Estado de São Paulo, Faculty of Medicine, Univesity of São Paulo, Sao Paulo 01246, Brazil
| | - Chiara Oltolini
- Unit of Infectious and Tropical Diseases, IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy
| | - Murat Akova
- Department of Infectious Diseases, Hacettepe University School of Medicine, 06230 Ankara, Turkey
| | - Miguel Montejo
- Infectious Diseases Unit, Cruces University Hospital, 48903 Bilbao, Spain
| | - Malgorzata Mikulska
- Division of Infectious Diseases, University of Genoa (DISSAL) and Ospedale Policlinico San Martino, 16132 Genoa, Italy
| | | | - Fabian Herrera
- Infectious Diseases Section, Department of Medicine, Centro de Educación Médica e Investigaciones Clínicas (CEMIC), Buenos Aires C1430EFA, Argentina
| | - Oriol Gasch
- Infectious Diseases Department, Parc Taulí University Hospital, 08208 Sabadell, Spain
| | - Lubos Drgona
- Oncohematology Department, Comenius University and National Cancer Institute, 81499 Bratislava, Slovakia
| | | | - Anne-Sophie Brunel
- Infectious Diseases Department, Department of Medicine, Lausanne University Hospital, (CHUV), 1011 Lausanne, Switzerland
| | - Estefanía García
- Hematology Department, Reina Sofía University Hospital-IMIBIC-UCO, Córdoba 14004, Argentina
| | - Burcu Isler
- Department of Infectious Diseases and Clinical Microbiology, Istanbul Education and Research Hospital, 34668 Istanbul, Turkey
| | - Winfried V. Kern
- Division of Infectious Diseases, Department of Medicine II, University of Freiburg Medical Center and Faculty of Medicine, 79106 Freiburg, Germany
| | - Zaira R. Palacios-Baena
- Unit of Infectious Diseases and Clinical Microbiology, Virgen Macarena University Hospital, Institute of Biomedicine of Seville (IBIS), 41013 Seville, Spain
| | - Guillermo Maestro de la Calle
- Infectious Diseases Unit, Instituto de Investigación Hospital “12 de Octubre” (i+12), “12 de Octubre”, University Hospital, School of Medicine, Universidad Complutense, 28041 Madrid, Spain
| | - Maria Milagro Montero
- Infectious Diseases Service, Hospital del Mar, Infectious Pathology and Antimicrobials Research Group (IPAR), Institut Hospital del Mar d’Investigations Mèdiques (IMIM), Universitat Autònoma de Barcelona (UAB), CEXS-Universitat Pompeu Fabra, 08003 Barcelona, Spain
| | - Souha S. Kanj
- Infectious Diseases Division, American University of Beirut Medical Center, Beirut 1107 2020, Lebanon
| | - Oguz R. Sipahi
- Faculty of Medicine, Ege University, 35040 Izmir, Turkey
| | - Sebnem Calik
- University of Health Science Izmir Bozyaka Training and Research Hospital, 35170 Izmir, Turkey
| | | | - Jorge I. Marin
- Infectious Diseases and Clinical Microbiology Department, Clínica Maraya, Pereira, Colombia. Critical Care and Clinical Microbiology Department, Manizales 170001-17, Colombia
| | - Marisa Z. R. Gomes
- Hospital Federal dos Servidores do Estado, and Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Ministério da Saúde, Rio de Janeiro 20221-161, Brazil
| | - Philipp Hemmatti
- Department of Hematology, Oncology and Palliative Care, Klinikum Ernst von Bergmann, Academic Teaching Hospital, Charité University Medical School, 10117 Berlin, Germany
| | - Rafael Araos
- Instituto de Ciencias e Innovación en Medicina, Facultad de Medicina Clínica Alemana Universidad del Desarrollo, Santiago de Chile 12461, Chile, and Millennium Initiative for Collaborative Research on Bacterial Resistance (MICROB-R)
| | - Maddalena Peghin
- Infectious Diseases Clinic, Department of Medicine, University of Udine and Azienda Sanitaria Universitaria Integrata in Udine, and Infectious and Tropical Diseases Unit, Department of Medicine and Surgery, University of Insubria-ASST-Sette Laghi, 33100 Udine, Italy
| | - José Luis del Pozo
- Infectious Diseases and Microbiology Unit, Navarra University Clinic, 31008 Pamplona, Spain
| | - Lucrecia Yáñez
- Hematology Department, Marqués de Valdecilla University Hospital, 39008 Santander, Spain
| | - Robert Tilley
- Microbiology Department, University Hospitals Plymouth NHS Trust, Plymouth PL6 8DH, UK
| | - Adriana Manzur
- Infectious Diseases, Hospital Rawson, San Juan J5400, Argentina
| | - Andrés Novo
- Hematology Department, Son Espases University Hospital, 07120 Palma de Mallorca, Spain
| | - Jordi Carratalà
- Infectious Diseases Department, Bellvitge University Hospital, IDIBELL, University of Barcelona, 08907 Barcelona, Spain
- University of Barcelona, 08007 Barcelona, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Infecciosas (CIBERINFEC), Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Carlota Gudiol
- Infectious Diseases Department, Bellvitge University Hospital, IDIBELL, University of Barcelona, 08907 Barcelona, Spain
- Institut Català d’Oncologia (ICO), Hospital Duran i Reynals, IDIBELL, 08907 Barcelona, Spain
- University of Barcelona, 08007 Barcelona, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Infecciosas (CIBERINFEC), Instituto de Salud Carlos III, 28029 Madrid, Spain
- Correspondence: ; Tel.: +34-932607625; Fax: +34-932607637
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Hung YP, Lee CC, Ko WC. Effects of Inappropriate Administration of Empirical Antibiotics on Mortality in Adults With Bacteraemia: Systematic Review and Meta-Analysis. Front Med (Lausanne) 2022; 9:869822. [PMID: 35712120 PMCID: PMC9197423 DOI: 10.3389/fmed.2022.869822] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2022] [Accepted: 05/03/2022] [Indexed: 11/13/2022] Open
Abstract
Introduction Bloodstream infections are associated with high mortality rates and contribute substantially to healthcare costs, but a consensus on the prognostic benefits of appropriate empirical antimicrobial therapy (EAT) for bacteraemia is lacking. Methods We performed a systematic search of the PubMed, Cochrane Library, and Embase databases through July 2021. Studies comparing the mortality rates of patients receiving appropriate and inappropriate EAT were considered eligible. The quality of the included studies was assessed using Joanna Briggs Institute checklists. Results We ultimately assessed 198 studies of 89,962 total patients. The pooled odds ratio (OR) for the prognostic impacts of inappropriate EAT was 2.06 (P < 0.001), and the funnel plot was symmetrically distributed. Among subgroups without between-study heterogeneity (I2 = 0%), those of patients with severe sepsis and septic shock (OR, 2.14), Pitt bacteraemia scores of ≥4 (OR, 1.88), cirrhosis (OR, 2.56), older age (OR, 1.78), and community-onset/acquired Enterobacteriaceae bacteraemia infection (OR, 2.53) indicated a significant effect of inappropriate EAT on mortality. The pooled adjusted OR of 125 studies using multivariable analyses for the effects of inappropriate EAT on mortality was 2.02 (P < 0.001), and the subgroups with low heterogeneity (I2 < 25%) exhibiting significant effects of inappropriate EAT were those of patients with vascular catheter infections (adjusted OR, 2.40), pneumonia (adjusted OR, 2.72), or Enterobacteriaceae bacteraemia (adjusted OR, 4.35). Notably, the pooled univariable and multivariable analyses were consistent in revealing the negligible impacts of inappropriate EAT on the subgroups of patients with urinary tract infections and Enterobacter bacteraemia. Conclusion Although the current evidence is insufficient to demonstrate the benefits of prompt EAT in specific bacteraemic populations, we indicated that inappropriate EAT is associated with unfavorable mortality outcomes overall and in numerous subgroups. Prospective studies designed to test these specific populations are needed to ensure reliable conclusions. Systematic Review Registration https://www.crd.york.ac.uk/prospero/, identifier: CRD42021270274.
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Affiliation(s)
- Yuan-Pin Hung
- Department of Internal Medicine, Tainan Hospital, Ministry of Health and Welfare, Tainan City, Taiwan.,Department of Internal Medicine, College of Medicine, National Cheng Kung University Hospital, National Cheng Kung University, Tainan City, Taiwan.,Department of Medicine, College of Medicine, National Cheng Kung University, Tainan City, Taiwan
| | - Ching-Chi Lee
- Department of Internal Medicine, College of Medicine, National Cheng Kung University Hospital, National Cheng Kung University, Tainan City, Taiwan.,Clinical Medicine Research Centre, College of Medicine, National Cheng Kung University Hospital, National Cheng Kung University, Tainan City, Taiwan
| | - Wen-Chien Ko
- Department of Internal Medicine, College of Medicine, National Cheng Kung University Hospital, National Cheng Kung University, Tainan City, Taiwan.,Department of Medicine, College of Medicine, National Cheng Kung University, Tainan City, Taiwan
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Zhang L, Tan FC, Strasfeld L, Hakki M, Kirienko NV. Long-Term Dominance of Carbapenem-Non-Susceptible Pseudomonas aeruginosa ST111 in Hematologic Malignancy Patients and Hematopoietic Cell Transplant Recipients. Front Cell Infect Microbiol 2022; 12:904602. [PMID: 35782141 PMCID: PMC9244782 DOI: 10.3389/fcimb.2022.904602] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Accepted: 05/16/2022] [Indexed: 11/13/2022] Open
Abstract
An epidemiological study uncovered that fluoroquinolone (FQ) neutropenic prophylaxis in hematopoietic cell transplant and hematologic malignancy (HCT/HM) patients was associated with breakthrough Pseudomonas aeruginosa bloodstream infections (BSIs) with isolates non-susceptible to both FQs and meropenem. The molecular epidemiology of the FQ/meropenem-non-susceptible P. aeruginosa isolates causing FQ-breakthrough BSIs in the HCT/HM patients remains unclear. Through whole genome sequencing on 57 P. aeruginosa isolates from 54 patients diagnosed with HM or receiving an HCT, we found that ST111 strains predominated, accounting for 22 (38.6%) of the isolates. 17 of 33 (51.5%) FQ-breakthrough BSIs were caused by ST111 strains, of which 15 (88.2%) were meropenem non-susceptible. ST111 strains, but not other oprD-deficient, meropenem-non-susceptible clinical strains, were found to have a colonization advantage over P. aeruginosa strain PA14 in C. elegans and to outcompete PA14 in in vitro co-culture assays. Together, we found that breakthrough P. aeruginosa BSIs during FQ prophylaxis in HCT/HM patients are dominated by clonally-related FQ/meropenem non-susceptible strains, predominantly ST111 type, and that the dominance of ST111 strains may be explained by a relative fitness advantage over other clinical strains. Additional work is necessary to better understand the factors driving the dominance and persistence of these ST111 strains.
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Affiliation(s)
- Liyang Zhang
- Department of BioSciences, Rice University, Houston, TX, United States
| | - Filemon C. Tan
- Department of BioSciences, Rice University, Houston, TX, United States
| | - Lynne Strasfeld
- Division of Infectious Diseases, Department of Medicine, Oregon Health and Science University, Portland, OR, United States
| | - Morgan Hakki
- Division of Infectious Diseases, Department of Medicine, Oregon Health and Science University, Portland, OR, United States
- *Correspondence: Natalia V. Kirienko, ; Morgan Hakki,
| | - Natalia V. Kirienko
- Department of BioSciences, Rice University, Houston, TX, United States
- *Correspondence: Natalia V. Kirienko, ; Morgan Hakki,
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22
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Paprocka P, Durnaś B, Mańkowska A, Król G, Wollny T, Bucki R. Pseudomonas aeruginosa Infections in Cancer Patients. Pathogens 2022; 11:pathogens11060679. [PMID: 35745533 PMCID: PMC9230571 DOI: 10.3390/pathogens11060679] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Revised: 06/06/2022] [Accepted: 06/07/2022] [Indexed: 12/11/2022] Open
Abstract
Pseudomonas aeruginosa (P. aeruginosa) is one of the most frequent opportunistic microorganisms causing infections in oncological patients, especially those with neutropenia. Through its ability to adapt to difficult environmental conditions and high intrinsic resistance to antibiotics, it successfully adapts and survives in the hospital environment, causing sporadic infections and outbreaks. It produces a variety of virulence factors that damage host cells, evade host immune responses, and permit colonization and infections of hospitalized patients, who usually develop blood stream, respiratory, urinary tract and skin infections. The wide intrinsic and the increasing acquired resistance of P. aeruginosa to antibiotics make the treatment of infections caused by this microorganism a growing challenge. Although novel antibiotics expand the arsenal of antipseudomonal drugs, they do not show activity against all strains, e.g., MBL (metalo-β-lactamase) producers. Moreover, resistance to novel antibiotics has already emerged. Consequently, preventive methods such as limiting the transmission of resistant strains, active surveillance screening for MDR (multidrug-resistant) strains colonization, microbiological diagnostics, antimicrobial stewardship and antibiotic prophylaxis are of particular importance in cancer patients. Unfortunately, surveillance screening in the case of P. aeruginosa is not highly effective, and a fluoroquinolone prophylaxis in the era of increasing resistance to antibiotics is controversial.
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Affiliation(s)
- Paulina Paprocka
- Department of Microbiology and Immunology, Institute of Medical Science, Collegium Medicum, Jan Kochanowski University, IX Wieków Kielc 19A, 25-317 Kielce, Poland; (P.P.); (B.D.); (A.M.); (G.K.)
| | - Bonita Durnaś
- Department of Microbiology and Immunology, Institute of Medical Science, Collegium Medicum, Jan Kochanowski University, IX Wieków Kielc 19A, 25-317 Kielce, Poland; (P.P.); (B.D.); (A.M.); (G.K.)
| | - Angelika Mańkowska
- Department of Microbiology and Immunology, Institute of Medical Science, Collegium Medicum, Jan Kochanowski University, IX Wieków Kielc 19A, 25-317 Kielce, Poland; (P.P.); (B.D.); (A.M.); (G.K.)
| | - Grzegorz Król
- Department of Microbiology and Immunology, Institute of Medical Science, Collegium Medicum, Jan Kochanowski University, IX Wieków Kielc 19A, 25-317 Kielce, Poland; (P.P.); (B.D.); (A.M.); (G.K.)
| | - Tomasz Wollny
- Holy Cross Oncology Center of Kielce, Artwińskiego 3, 25-734 Kielce, Poland;
| | - Robert Bucki
- Department of Microbiology and Immunology, Institute of Medical Science, Collegium Medicum, Jan Kochanowski University, IX Wieków Kielc 19A, 25-317 Kielce, Poland; (P.P.); (B.D.); (A.M.); (G.K.)
- Department of Medical Microbiology and Nanobiomedical Engineering, Medical University of Białystok, Jana Kilińśkiego 1 Białystok, 15-089 Białystok, Poland
- Correspondence: ; Tel.: +48-85-748-54-83
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Hung YP, Chen PL, Ho CY, Hsieh CC, Lee CH, Lee CC, Ko WC. Prognostic Effects of Inappropriate Empirical Antimicrobial Therapy in Adults With Community-Onset Bacteremia: Age Matters. Front Med (Lausanne) 2022; 9:861032. [PMID: 35479958 PMCID: PMC9037591 DOI: 10.3389/fmed.2022.861032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Accepted: 02/28/2022] [Indexed: 11/13/2022] Open
Abstract
Background Studies have reported the effects of delayed administration of appropriate antimicrobial therapy (AAT) on the short-term prognosis of patients with bloodstream infections; however, whether there is an age-related difference in these effects remains debated. Methods In this 4-year multicenter case-control study, patients with community-onset bacteremia were retrospectively categorized into the "middle-aged" (45-64 years), "old" (65-74 years), and "very old" (≥75 years) groups. Two methods were adopted to investigate the prognostic effects of delayed AAT in each age group. First, its effects were, respectively, investigated, after adjustment for the independent predictors of 30-day mortality. Second, patients in each age group were matched by the closest propensity-score (PS), which was calculated by independent predictors of mortality; the survival curves and Pearson chi-square tests were adopted to disclose its effects in each PS-matching group. Results Each hour of delayed AAT resulted in an average increase in the 30-day crude mortality rate of 0.2% (P = 0.03), 0.4% (P < 0.001), and 0.7% (P < 0.001) in middle-aged (968 patients), old (683), and very old (1,265) patients, after, respectively, adjusting the independent predictors of mortality in each group. After appropriate PS-matching, no significant proportion differences in patient demographics, bacteremia characteristics, severity of bacteremia and comorbidities, and 15-day or 30-day crude mortality rates were observed between three matched groups (582 patients in each group). However, significant differences in survival curves between patients with delayed AAT > 24 or >48 h and those without delayed administration were demonstrated in each age group. Furthermore, the odds ratios of 30-day mortality for delayed AAT > 24 or >48 h were 1.73 (P = 0.04) or 1.82 (P = 0.04), 1.84 (P = 0.03) or 1.95 (P = 0.02), and 1.87 (P = 0.02) or 2.34 (P = 0.003) in the middle-aged, old, and very old groups, respectively. Notably, the greatest prognostic impact of delayed AAT > 24 or >48 h in the very old group and the smallest impact in the middle-aged group were exhibited. Conclusion For adults (aged ≥45 years) with community-onset bacteremia, the delayed AAT significantly impacts their short-term survival in varied age groups and the age-related differences in its prognostic impact might be evident.
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Affiliation(s)
- Yuan-Pin Hung
- Department of Internal Medicine, Tainan Hospital, Ministry of Health and Welfare, Tainan, Taiwan.,Department of Internal Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan.,Department of Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Po-Lin Chen
- Department of Internal Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan.,Department of Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Ching-Yu Ho
- Department of Adult Critical Care Medicine, Tainan Sin-Lau Hospital, Tainan, Taiwan.,Department of Nursing, National Tainan Junior College of Nursing, Tainan, Taiwan
| | - Chih-Chia Hsieh
- Department of Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan.,Department of Emergency Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Chung-Hsun Lee
- Department of Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan.,Department of Emergency Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Ching-Chi Lee
- Department of Internal Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan.,Clinical Medicine Research Center, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Wen-Chien Ko
- Department of Internal Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan.,Department of Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan
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Real-Life Use of Ceftolozane/Tazobactam for the Treatment of Bloodstream Infection Due to Pseudomonas aeruginosa in Neutropenic Hematologic Patients: a Matched Control Study (ZENITH Study). Microbiol Spectr 2022; 10:e0229221. [PMID: 35475683 PMCID: PMC9241913 DOI: 10.1128/spectrum.02292-21] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
We sought to assess the characteristics and outcomes of neutropenic hematologic patients with Pseudomonas aeruginosa (PA) bloodstream infection (BSI) treated with ceftolozane-tazobactam (C/T). We conducted a multicenter, international, matched-cohort study of PA BSI episodes in neutropenic hematologic patients who received C/T. Controls were patients with PA BSI treated with other antibiotics. Risk factors for overall 7-day and 30-day case fatality rates were analyzed. We compared 44 cases with 88 controls. Overall, 91% of episodes were caused by multidrug-resistant (MDR) strains. An endogenous source was the most frequent BSI origin (35.6%), followed by pneumonia (25.8%). There were no significant differences in patient characteristics between groups. C/T was given empirically in 11 patients and as definitive therapy in 41 patients. Treatment with C/T was associated with less need for mechanical ventilation (13.6% versus 33.3%; P = 0.021) and reduced 7-day (6.8% versus 34.1%; P = 0.001) and 30-day (22.7% versus 48.9%; P = 0.005) mortality. In the multivariate analysis, pneumonia, profound neutropenia, and persistent BSI were independent risk factors for 30-day mortality, whereas lower mortality was found among patients treated with C/T (adjusted OR [aOR] of 0.19; confidence interval [CI] 95% of 0.07 to 0.55; P = 0.002). Therapy with C/T was associated with less need for mechanical ventilation and reduced 7-day and 30-day case fatality rates compared to alternative agents in neutropenic hematologic patients with PA BSI. IMPORTANCE Ceftolozane-tazobactam (C/T) has been shown to be a safe and effective alternative for the treatment of difficult to treat infections due to Pseudomonas aeruginosa (PA) in the general nonimmunocompromised population. However, the experience of this agent in immunosuppressed neutropenic patients is very limited. Our study is unique because it is focused on extremely immunosuppressed hematological patients with neutropenia and bloodstream infection (BSI) due to PA (mainly multidrug resistant [MDR]), a scenario which is often associated with very high mortality rates. In our study, we found that the use of C/T for the treatment of MDR PA BSI in hematological neutropenic patients was significantly associated with improved outcomes, and, in addition, it was found to be an independent risk factor associated with increased survival. To date, this is the largest series involving neutropenic hematologic patients with PA BSI treated with C/T.
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25
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Infection prevention requirements for the medical care of immunosuppressed patients: recommendations of the Commission for Hospital Hygiene and Infection Prevention (KRINKO) at the Robert Koch Institute. GMS HYGIENE AND INFECTION CONTROL 2022; 17:Doc07. [PMID: 35707229 PMCID: PMC9174886 DOI: 10.3205/dgkh000410] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
In Germany, guidelines for hygiene in hospitals are given in form of recommendations by the Commission for Hospital Hygiene and Infection Prevention (Kommission für Krankenhaushygiene und Infektionsprävention, "KRINKO"). The KRINKO and its voluntary work are legitimized by the mandate according to § 23 of the Infection Protection Act (Infektionsschutzgesetz, "IfSG"). The original German version of this document was published in February 2021 and has now been made available to the international professional public in English. The guideline provides recommendations on infection prevention and control for immunocompromised individuals in health care facilities. This recommendation addresses not only measures related to direct medical care of immunocompromised patients, but also management aspects such as surveillance, screening, antibiotic stewardship, and technical/structural aspects such as patient rooms, air quality, and special measures during renovations.
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26
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Lin H, Yang L, Fang J, Gao Y, Zhu H, Zhang S, Summah HD, Shi G, Sun J, Ni L, Feng Y. Clinical Characteristics of Bloodstream Infection in Immunosuppressed Patients: A 5-Year Retrospective Cohort Study. Front Cell Infect Microbiol 2022; 12:796656. [PMID: 35444962 PMCID: PMC9014008 DOI: 10.3389/fcimb.2022.796656] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2021] [Accepted: 03/07/2022] [Indexed: 11/21/2022] Open
Abstract
Introduction Immunosuppressed patients with bloodstream infection are at risk of mortality. Our objective was to assess the independent risk factors of bloodstream infection with mortality in immunosuppressive states. Methods The medical data of a total of 896 patients who were hospitalized in our hospital were collected from January 2015 to December 2019. Evaluation of the independent risk factors of mortality was done by univariate and multivariate logistic regression analyses. Results Of the 896 immunosuppressed patients with bloodstream infection, 698 had over 60-day survivals and 198 had 60-day mortality. In our study, PCT (mean ±; standard: 11.40 ±; 31.89 µg/l vs. 62.45 ±; 17.10 µg/l, p = 0.007) and presence of age >60 years (40% vs. 14.19%, p = 0.001) were significantly different between situations with and without 60-day survivals in both univariate and multivariate logistic regression analyses. Age >60 years and PCT could be used as indicators for bloodstream infection with 60-day death in immunosuppressive states; the OR (95% CI) were 1.532 (1.099–2.135) and 2.063 (1.413–3.013), respectively. In different subgroups, PCT and age were also independent risk factors of blood system diseases, Klebsiella pneumoniae infection, diabetes, and ICU-stay subgroups. Conclusions Age and PCT were independently associated with mortality in immunosuppressive states, which may help to identify the highly risky situation of bloodstream infection in immunosuppressive states.
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Affiliation(s)
- Hongxia Lin
- Department of Respiratory and Critical Care Medicine, Ruijin Hospital Affiliated Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Institute of Respiratory Diseases, School of Medicine, Shanghai Jiaotong University, Shanghai, China
| | - Lili Yang
- Institute of Respiratory Diseases, People’s Hospital of Fuyang City, Fuyang, China
| | - Jie Fang
- Department of Pharmacy, Ruijin Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China
| | - Yulian Gao
- Department of Respiratory and Critical Care Medicine, Ruijin Hospital Affiliated Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Institute of Respiratory Diseases, School of Medicine, Shanghai Jiaotong University, Shanghai, China
| | - Haixing Zhu
- Department of Respiratory and Critical Care Medicine, Ruijin Hospital Affiliated Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Institute of Respiratory Diseases, School of Medicine, Shanghai Jiaotong University, Shanghai, China
| | - Shengxiong Zhang
- Department of Respiratory and Critical Care Medicine, Ruijin Hospital Affiliated Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Institute of Respiratory Diseases, School of Medicine, Shanghai Jiaotong University, Shanghai, China
| | - Hanssa Dwarka Summah
- Department of Respiratory and Critical Care Medicine, Poudre D’Or Chest Hospital, Rivière du Rempart, Mauritius
| | - Guochao Shi
- Department of Respiratory and Critical Care Medicine, Ruijin Hospital Affiliated Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Institute of Respiratory Diseases, School of Medicine, Shanghai Jiaotong University, Shanghai, China
| | - Jingyong Sun
- Department of Laboratory Medicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- *Correspondence: Yun Feng, ; Lei Ni, ; Jingyong Sun,
| | - Lei Ni
- Department of Respiratory and Critical Care Medicine, Ruijin Hospital Affiliated Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Institute of Respiratory Diseases, School of Medicine, Shanghai Jiaotong University, Shanghai, China
- *Correspondence: Yun Feng, ; Lei Ni, ; Jingyong Sun,
| | - Yun Feng
- Department of Respiratory and Critical Care Medicine, Ruijin Hospital Affiliated Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Institute of Respiratory Diseases, School of Medicine, Shanghai Jiaotong University, Shanghai, China
- *Correspondence: Yun Feng, ; Lei Ni, ; Jingyong Sun,
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Effect of Combination Antibiotic Empirical Therapy on Mortality in Neutropenic Cancer Patients with Pseudomonas aeruginosa Pneumonia. Microorganisms 2022; 10:microorganisms10040733. [PMID: 35456784 PMCID: PMC9027680 DOI: 10.3390/microorganisms10040733] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Revised: 03/18/2022] [Accepted: 03/21/2022] [Indexed: 12/30/2022] Open
Abstract
To assess the effect of combination antibiotic empirical therapy on 30-day case-fatality rate in neutropenic cancer patients with Pseudomonas aeruginosa (PA) bacteremic pneumonia. This was a multinational, retrospective cohort study of neutropenic onco-hematological patients with PA bloodstream infection (BSI) (2006−2018). The effect of appropriate empirical combination therapy, appropriate monotherapy and inappropriate empirical antibiotic therapy [IEAT] on 30-day case-fatality was assessed only in patients with PA bacteremic pneumonia. Among 1017 PA BSI episodes, pneumonia was the source of BSI in 294 (28.9%). Among those, 52 (17.7%) were caused by a multidrug-resistant (MDR) strain and 68 (23.1%) received IEAT, mainly when the infection was caused by an MDR strain [38/52 (73.1%) vs. 30/242 (12.4%); p < 0.001]. The 30-day case-fatality rate was higher in patients with PA bacteremic pneumonia than in those with PA BSI from other sources (55.1% vs. 31.4%; p < 0.001). IEAT was associated with increased 30-day case-fatality (aHR 1.44 [95%CI 1.01−2.03]; p = 0.042), whereas the use of appropriate combination empirical treatment was independently associated with improved survival (aHR 0.46 [95%CI 0.27−0.78]; p = 0.004). Appropriate empirical monotherapy was not associated with improved overall survival (aHR 1.25 [95%CI 0.76−2.05]; p = 0.39). Combination antibiotic empirical therapy should be administered promptly in febrile neutropenic patients with suspected pneumonia as the source of infection.
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Characteristics and Outcomes of Bloodstream Infections in a Tertiary-Care Pediatric Hematology-Oncology Unit: A 10-Year Study. J Clin Med 2022; 11:jcm11030880. [PMID: 35160334 PMCID: PMC8836920 DOI: 10.3390/jcm11030880] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Revised: 01/24/2022] [Accepted: 02/03/2022] [Indexed: 12/21/2022] Open
Abstract
Bloodstream infections (BSIs) after chemotherapy or hematopoietic stem cell transplantation (HSCT) are a leading cause of morbidity and mortality. Data on 154 BSIs that occurred in 111 onco-hematological patients (57 hematological malignancies, 28 solid tumors, and 26 non-malignant hematological diseases) were retrospectively collected and analyzed. Monomicrobial Gram-positive (GP), Gram-negative (GN), and fungal BSIs accounted for 50% (77/154), 38.3% (59/144), and 3.2% (5/154) of all episodes. Polymicrobial infections were 7.8% (12/154), while mixed bacterial-fungal infections were 0.6% (1/154). The most frequent GN isolates were Escherichia coli (46.9%), followed by Pseudomonas aeruginosa (21.9%), Klebsiella species (18.8%), and Enterobacter species (6.3%). Overall, 18.8% (12/64) of GN organisms were multidrug-resistant (seven Escherichia coli, three Klebsiella pneumoniae, and two Enterobacter cloacae), whereas GP resistance to glycopeptides was observed in 1% (1/97). Initial empirical antibiotic therapy was deemed inappropriate in 12.3% of BSIs (19/154). The 30-day mortality was 7.1% (11/154), while the bacteremia-attributable mortality was 3.9% (6/154). In multivariate analysis, septic shock was significantly associated with 30-day mortality (p = 0.0001). Attentive analysis of epidemiology and continuous microbiological surveillance are essential for the appropriate treatment of bacterial infections in pediatric onco-hematological patients.
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Niikura M, Atobe S, Takahashi A, Kado Y, Sugimoto T, Tsuji H, Shimizu K, Ogura H, Asahara T. Development of a rapid and sensitive analytical system for Pseudomonas aeruginosa based on reverse transcription quantitative PCR targeting of rRNA molecules. Emerg Microbes Infect 2021; 10:677-686. [PMID: 33734032 PMCID: PMC8023615 DOI: 10.1080/22221751.2021.1906164] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Revised: 03/10/2021] [Accepted: 03/14/2021] [Indexed: 12/05/2022]
Abstract
For Pseudomonas aeruginosa (PA), infection control and appropriate antimicrobial treatment have become important issues. Diagnosis is critical in managing PA infection, but conventional methods are not highly accurate or rapid. We developed a new PA quantification system based on 23S rRNA-targeted reverse transcription quantitative PCR (RT-qPCR). We confirmed that RT-qPCR can quantify PA directly from clinical samples quickly (within 6 h) and with high sensitivity (blood, 1 cell/mL; stool, 100 cells/g) and without cross-reaction. Also, under antibiotic treatment, PA viable counts detected by this system correlated well with the inflammatory response of infected Caco-2 cells compared to other methods such as culturing and qPCR. Next, we utilized this system on fecal samples collected from 65 septic ICU patients and 44 healthy volunteers to identify ICU infection status. We confirmed that the PA detection ratio in ICU patients was significantly higher than that in healthy volunteers (49.2% vs. 13.6%, P < 0.05). Additionally, we monitored drug-resistant PA in 4 ICU patients by this system. The trends in PA counts accurately reflected various treatment backgrounds such as antibiotic use and mechanical ventilator use. Our results suggest that this RT-qPCR system is beneficial for the early diagnosis and evaluation of appropriate antibacterial treatment and may be a useful tool in combating PA infection.
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Affiliation(s)
- Mai Niikura
- Yakult Central Institute, Yakult Honsha Co., Ltd., Kunitachi, Tokyo, Japan
| | - Satomi Atobe
- Yakult Central Institute, Yakult Honsha Co., Ltd., Kunitachi, Tokyo, Japan
| | - Akira Takahashi
- Yakult Central Institute, Yakult Honsha Co., Ltd., Kunitachi, Tokyo, Japan
| | - Yukiko Kado
- Yakult Central Institute, Yakult Honsha Co., Ltd., Kunitachi, Tokyo, Japan
| | - Takuya Sugimoto
- Yakult Central Institute, Yakult Honsha Co., Ltd., Kunitachi, Tokyo, Japan
| | - Hirokazu Tsuji
- Yakult Central Institute, Yakult Honsha Co., Ltd., Kunitachi, Tokyo, Japan
| | - Kentaro Shimizu
- Department of Traumatology and Acute Critical Medicine, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Hiroshi Ogura
- Department of Traumatology and Acute Critical Medicine, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Takashi Asahara
- Yakult Central Institute, Yakult Honsha Co., Ltd., Kunitachi, Tokyo, Japan
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Impact of empirical antibiotic regimens on mortality in neutropenic patients with bloodstream infection presenting with septic shock. Antimicrob Agents Chemother 2021; 66:e0174421. [PMID: 34843387 DOI: 10.1128/aac.01744-21] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Objectives: We analyzed risk factors for mortality in febrile neutropenic patients with bloodstream infections (BSI) presenting with septic shock and assessed the impact of empirical antibiotic regimens. Methods: Multicenter retrospective study (2010-2019) of two prospective cohorts comparing BSI episodes in patients with or without septic shock. Multivariate analysis was performed to identify independent risk factors for mortality in episodes with septic shock. Results: Of 1563 patients with BSI, 257 (16%) presented with septic shock. Those patients with septic shock had higher mortality than those without septic shock (55% vs 15%, p<0.001). Gram-negative bacilli caused 81% of episodes with septic shock; gram-positive cocci, 22%; and Candida species 5%. Inappropriate empirical antibiotic treatment (IEAT) was administered in 17.5% of septic shock episodes. Empirical β-lactam combined with other active antibiotics was associated with the lowest mortality observed. When amikacin was the only active antibiotic, mortality was 90%. Addition of empirical specific gram-positive coverage had no impact on mortality. Mortality was higher when IEAT was administered (76% vs 51%, p=0.002). Age >70 years (OR 2.3, 95% CI 1.2-4.7), IEAT for Candida spp. or gram-negative bacilli (OR 3.8, 1.3-11.1), acute kidney injury (OR 2.6, 1.4-4.9) and amikacin as the only active antibiotic (OR 15.2, 1.7-134.5) were independent risk factors for mortality, while combination of β-lactam and amikacin was protective (OR 0.32, 0.18-0.57). Conclusions: Septic shock in febrile neutropenic patients with BSI is associated with extremely high mortality, especially when IEAT is administered. Combination therapy including an active β-lactam and amikacin results in the best outcomes.
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Fontana L, Hakki M. Emergence of non-susceptibility during persistent Pseudomonas aeruginosa bacteraemia in haematopoietic cell transplant recipients and haematological malignancy patients. JAC Antimicrob Resist 2021; 3:dlab125. [PMID: 34661107 PMCID: PMC8519295 DOI: 10.1093/jacamr/dlab125] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Accepted: 07/18/2021] [Indexed: 01/13/2023] Open
Abstract
Background Systematic studies pertaining to the emergence of resistance during therapy
of Pseudomonas aeruginosa bloodstream infections (BSIs) in
haematopoietic cell transplant (HCT) recipients and haematological
malignancy (HM) patients are lacking. Objectives To determine how frequently non-susceptibility emerges during therapy of
P. aeruginosa BSIs and to compare these findings with
non-HCT/HM patients. Patients and methods P. aeruginosa BSIs that occurred at our institution between
1 July 2012 and 31 October 2019 in HCT/HM patients and non-HCT/HM patients
were identified. Episodes in which bacteraemia persisted while on
appropriate therapy (‘persistent BSI’) were evaluated for
emergence of non-susceptibility during therapy. Results In total, 96 BSI episodes among 86 HCT/HM patients were analysed. Eight
persistent BSI episodes (8.3%) occurred in eight patients
(9.3%). Repeat susceptibility testing was performed in seven
(87.5%) of these episodes. Non-susceptibility to the treatment agent
emerged in five (71.4%) episodes and to any antipseudomonal agent in
seven (100%) episodes. The 21 day mortality rate associated
with persistent BSI was 87.5% (seven of eight), and it was 80%
(four of five) among persistent BSI episodes in which non-susceptibility to
the treatment agent emerged on therapy. Non-susceptibility to any
antipseudomonal agent during persistent BSI emerged significantly more
frequently in HCT/HM patients compared with non-HCT/HM patients. Conclusions Non-susceptibility emerges frequently during persistent P.
aeruginosa BSIs in HCT/HM patients, and this is associated with
a high mortality rate. Our findings have implications for the management of
persistent P. aeruginosa BSIs in these patients. Larger
studies are needed to confirm and expand on our findings.
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Affiliation(s)
- Lauren Fontana
- Division of Infectious Diseases, University of Minnesota, Minneapolis, MN, USA
| | - Morgan Hakki
- Division of Infectious Diseases, Oregon Health and Science University, Portland, OR, USA
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Chathuranga G, Dissanayake T, Fernando N, Wanigatunge C. Appropriateness of the Empirical Antibiotics Prescribed and Their Concordance with National Guidelines for Three Selected Infections among Cancer Patients in a Tertiary Care Centre in Sri Lanka. Int J Microbiol 2021; 2021:7572215. [PMID: 34621317 PMCID: PMC8492258 DOI: 10.1155/2021/7572215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 09/01/2021] [Accepted: 09/06/2021] [Indexed: 12/09/2022] Open
Abstract
BACKGROUND Prophylactic and empirical antibiotic use is essential in cancer patients due to the underlying immune deficiencies. We examined the spectrum of causative bacteria and the appropriateness of empirical antibiotic prescription for three selected infections in cancer patients. Methodology. A descriptive cross-sectional study was conducted at the National Institute of Cancer (NIC), Sri Lanka, from June 2018 to February 2019. Bacterial isolates obtained from adult cancer patients with a diagnosis of lower respiratory tract infections (LRTI), skin and soft tissue infections (SSTI), or urinary tract infections (UTI) were included. Causative bacteria were identified and the antibiotic susceptibility was determined by standard microbiological methods. Empirical therapy was defined as appropriate if the isolated pathogen was susceptible in vitro to the given antibiotic. RESULTS A total of 155 bacterial isolates were included in the analysis. LRTI were the most prevalent infections (37.2%, 55/148) encountered during the study period. Majority (90.9%) of the isolated bacteria were ESKAPE pathogens. Klebsiella pneumoniae was the most frequent pathogen causing LRTI (42.4%, 25/59), whereas Escherichia coli (32%, 16/50) and Staphylococcus aureus (26.1%, 12/46) predominated in UTI and SSTI, respectively. Meropenem was the most prescribed empirical antibiotic for LRTI (29.1%, 16/55) and SSTI (26.6%, 11/43) while it was ceftazidime for UTI (36%, 18/50). Only 20.6% (32/155) of the isolated bacteria were susceptible to the empirical antibiotic prescribed while 48.4% (75/155) were resistant to them. The prescribed empirical antibiotic did not have the spectrum of activity for the isolated bacteria in 29% (45/155) of cases. CONCLUSION High resistance rates were observed against the prescribed empirical antibiotics. National empirical antibiotic guidelines should be revised with updated data on causative organisms and their susceptibility patterns to ensure appropriate empirical antibiotic prescription.
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Affiliation(s)
- Gayashan Chathuranga
- Department of Medical Laboratory Sciences, Faculty of Allied Health Sciences, University of Sri Jayewardenepura, Nugegoda, Sri Lanka
| | - Thushari Dissanayake
- Department of Microbiology, Faculty of Medical Sciences, University of Sri Jayewardenepura, Nugegoda, Sri Lanka
| | - Neluka Fernando
- Department of Microbiology, Faculty of Medical Sciences, University of Sri Jayewardenepura, Nugegoda, Sri Lanka
| | - Chandanie Wanigatunge
- Department of Pharmacology, Faculty of Medical Sciences, University of Sri Jayewardenepura, Nugegoda, Sri Lanka
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Daikos GL, da Cunha CA, Rossolini GM, Stone GG, Baillon-Plot N, Tawadrous M, Irani P. Review of Ceftazidime-Avibactam for the Treatment of Infections Caused by Pseudomonas aeruginosa. Antibiotics (Basel) 2021; 10:antibiotics10091126. [PMID: 34572708 PMCID: PMC8467554 DOI: 10.3390/antibiotics10091126] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Revised: 09/15/2021] [Accepted: 09/16/2021] [Indexed: 12/12/2022] Open
Abstract
Pseudomonas aeruginosa is an opportunistic Gram-negative pathogen that causes a range of serious infections that are often challenging to treat, as this pathogen can express multiple resistance mechanisms, including multidrug-resistant (MDR) and extensively drug-resistant (XDR) phenotypes. Ceftazidime–avibactam is a combination antimicrobial agent comprising ceftazidime, a third-generation semisynthetic cephalosporin, and avibactam, a novel non-β-lactam β-lactamase inhibitor. This review explores the potential role of ceftazidime–avibactam for the treatment of P. aeruginosa infections. Ceftazidime–avibactam has good in vitro activity against P. aeruginosa relative to comparator β-lactam agents and fluoroquinolones, comparable to amikacin and ceftolozane–tazobactam. In Phase 3 clinical trials, ceftazidime–avibactam has generally demonstrated similar clinical and microbiological outcomes to comparators in patients with complicated intra-abdominal infections, complicated urinary tract infections or hospital-acquired/ventilator-associated pneumonia caused by P. aeruginosa. Although real-world data are limited, favourable outcomes with ceftazidime–avibactam treatment have been reported in some patients with MDR and XDR P. aeruginosa infections. Thus, ceftazidime–avibactam may have a potentially important role in the management of serious and complicated P. aeruginosa infections, including those caused by MDR and XDR strains.
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Affiliation(s)
- George L. Daikos
- Department of Medicine, National and Kapodistrian University of Athens, 115-27 Athens, Greece
- Correspondence: ; Tel.: +30-210-804-9218
| | | | - Gian Maria Rossolini
- Department of Experimental and Clinical Medicine, University of Florence, I-50134 Florence, Italy;
- Clinical Microbiology and Virology Unit, Careggi University Hospital, I-50134 Florence, Italy
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Albasanz-Puig A, Gudiol C, Puerta-Alcalde P, Ayaz CM, Machado M, Herrera F, Martín-Dávila P, Laporte-Amargós J, Cardozo C, Akova M, Álvarez-Uría A, Torres D, Fortún J, García-Vidal C, Muñoz P, Bergas A, Pomares H, Mercadal S, Durà-Miralles X, García-Lerma E, Pallarès N, Carratalà J. Impact of the Inclusion of an Aminoglycoside to the Initial Empirical Antibiotic Therapy for Gram-Negative Bloodstream Infections in Hematological Neutropenic Patients: a Propensity-Matched Cohort Study (AMINOLACTAM Study). Antimicrob Agents Chemother 2021; 65:e0004521. [PMID: 33972253 PMCID: PMC8284470 DOI: 10.1128/aac.00045-21] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2021] [Accepted: 05/02/2021] [Indexed: 01/09/2023] Open
Abstract
To test the hypothesis that the addition of an aminoglycoside to a β-lactam antibiotic could provide better outcomes than β-lactam monotherapy for the initial empirical treatment of hematological neutropenic patients with subsequently documented Gram-negative bacillus (GNB) bloodstream infection (BSI), a multinational, retrospective, cohort study of GNB BSI episodes in hematological neutropenic patients in six centers (2010 to 2017) was conducted. Combination therapy (β-lactam plus aminoglycoside) was compared to β-lactam monotherapy. The primary endpoint was the case fatality rate, assessed at 7 and 30 days from BSI onset. Secondary endpoints were nephrotoxicity and persistent BSI. Propensity score (PS) matching was performed. Among 542 GNB BSI episodes, 304 (56%) were initially treated with combination therapy, with cefepime plus amikacin being most common (158/304 [52%]). Overall, Escherichia coli (273/304 [50.4%]) was the main etiological agent, followed by Pseudomonas aeruginosa, which predominated in the combination group (76/304 [25%] versus 28/238 [11.8%]; P < 0.001). Multidrug resistance rates were similar between groups (83/294 [28.2%] versus 63/233 [27%]; P = 0.95). In the multivariate analysis, combination therapy was associated with a lower 7-day case fatality rate (odds ratio [OR], 0.37; 95% CI, 0.14 to 0.91; P = 0.035) with a tendency toward lower mortality at 30 days (OR, 0.56; 95% CI, 0.29 to 1.08; P = 0.084). After PS matching, these differences remained for the 7-day case fatality rate (OR, 0.33; 95% CI, 0.13 to 0.82; P = 0.017). In addition, aminoglycoside use was not significantly associated with renal function impairment (OR, 1.12; 95% CI, 0.26 to 4.87; P = 0.9). The addition of an aminoglycoside to the initial empirical therapy regimen for febrile neutropenic hematological patients should be considered.
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Affiliation(s)
- A. Albasanz-Puig
- Infectious Disease Department, Bellvitge University Hospital, L’Hospitalet de Llobregat, Barcelona, Spain
- Infections of the Respiratory Tract and in Immunocompromised Patients Research Group, Infectious Diseases and Transplantation Program, Institut d’Investigació Biomèdica de Bellvitge, L’Hospitalet de Llobregat, Barcelona, Spain
- Spanish Network for Research in Infectious Disease, Instituto de Salud Carlos III, Madrid, Spain
| | - C. Gudiol
- Infectious Disease Department, Bellvitge University Hospital, L’Hospitalet de Llobregat, Barcelona, Spain
- Infections of the Respiratory Tract and in Immunocompromised Patients Research Group, Infectious Diseases and Transplantation Program, Institut d’Investigació Biomèdica de Bellvitge, L’Hospitalet de Llobregat, Barcelona, Spain
- Spanish Network for Research in Infectious Disease, Instituto de Salud Carlos III, Madrid, Spain
- University of Barcelona, Barcelona, Spain
- Institut Català d’Oncologia, L’Hospitalet de Llobregat, Barcelona, Spain
| | - P. Puerta-Alcalde
- Spanish Network for Research in Infectious Disease, Instituto de Salud Carlos III, Madrid, Spain
- Infectious Diseases Department, Hospital Clínic i Provincial, Barcelona, Spain
| | - C. M. Ayaz
- Hacettepe University School of Medicine, Ankara, Turkey
| | - M. Machado
- Clinical Microbiology and Infectious Diseases Department, Hospital General Universitario Gregorio Marañón, Madrid, Spain
| | - F. Herrera
- Infectious Diseases Section, Department of Medicine, Centro de Educación Médica e Investigaciones Clínicas, Buenos Aires, Argentina
| | - P. Martín-Dávila
- Infectious Diseases Department, Ramón y Cajal Hospital, Madrid, Spain
| | - J. Laporte-Amargós
- Infectious Disease Department, Bellvitge University Hospital, L’Hospitalet de Llobregat, Barcelona, Spain
- Infections of the Respiratory Tract and in Immunocompromised Patients Research Group, Infectious Diseases and Transplantation Program, Institut d’Investigació Biomèdica de Bellvitge, L’Hospitalet de Llobregat, Barcelona, Spain
- Spanish Network for Research in Infectious Disease, Instituto de Salud Carlos III, Madrid, Spain
| | - C. Cardozo
- Infectious Diseases Department, Hospital Clínic i Provincial, Barcelona, Spain
| | - M. Akova
- Hacettepe University School of Medicine, Ankara, Turkey
| | - A. Álvarez-Uría
- Clinical Microbiology and Infectious Diseases Department, Hospital General Universitario Gregorio Marañón, Madrid, Spain
| | - D. Torres
- Infectious Diseases Section, Department of Medicine, Centro de Educación Médica e Investigaciones Clínicas, Buenos Aires, Argentina
| | - J. Fortún
- Infectious Diseases Department, Ramón y Cajal Hospital, Madrid, Spain
| | - C. García-Vidal
- Spanish Network for Research in Infectious Disease, Instituto de Salud Carlos III, Madrid, Spain
- Infectious Diseases Department, Hospital Clínic i Provincial, Barcelona, Spain
| | - P. Muñoz
- Clinical Microbiology and Infectious Diseases Department, Hospital General Universitario Gregorio Marañón, Madrid, Spain
| | - A. Bergas
- Infectious Disease Department, Bellvitge University Hospital, L’Hospitalet de Llobregat, Barcelona, Spain
| | - H. Pomares
- Hematology Department, Institut Català d’Oncologia, L’Hospitalet de Llobregat, Barcelona, Spain
| | - S. Mercadal
- Hematology Department, Institut Català d’Oncologia, L’Hospitalet de Llobregat, Barcelona, Spain
| | - X. Durà-Miralles
- Infectious Disease Department, Bellvitge University Hospital, L’Hospitalet de Llobregat, Barcelona, Spain
- Infections of the Respiratory Tract and in Immunocompromised Patients Research Group, Infectious Diseases and Transplantation Program, Institut d’Investigació Biomèdica de Bellvitge, L’Hospitalet de Llobregat, Barcelona, Spain
- Spanish Network for Research in Infectious Disease, Instituto de Salud Carlos III, Madrid, Spain
| | - E. García-Lerma
- Biostatistics Unit, Institut d’Investigació Biomèdica de Bellvitge, L’Hospitalet de Llobregat, Barcelona, Spain
| | - N. Pallarès
- Biostatistics Unit, Institut d’Investigació Biomèdica de Bellvitge, L’Hospitalet de Llobregat, Barcelona, Spain
| | - J. Carratalà
- Infectious Disease Department, Bellvitge University Hospital, L’Hospitalet de Llobregat, Barcelona, Spain
- Infections of the Respiratory Tract and in Immunocompromised Patients Research Group, Infectious Diseases and Transplantation Program, Institut d’Investigació Biomèdica de Bellvitge, L’Hospitalet de Llobregat, Barcelona, Spain
- Spanish Network for Research in Infectious Disease, Instituto de Salud Carlos III, Madrid, Spain
- University of Barcelona, Barcelona, Spain
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Puerta-Alcalde P, Ambrosioni J, Chumbita M, Hernández-Meneses M, Garcia-Pouton N, Cardozo C, Moreno-García E, Marco F, Mensa J, Rovira M, Esteve J, Martínez JA, García F, Mallolas J, Soriano A, Miró JM, Garcia-Vidal C. Clinical Characteristics and Outcome of Bloodstream Infections in HIV-Infected Patients with Cancer and Febrile Neutropenia: A Case-Control Study. Infect Dis Ther 2021; 10:955-970. [PMID: 33840061 PMCID: PMC8116456 DOI: 10.1007/s40121-021-00445-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Accepted: 03/27/2021] [Indexed: 12/12/2022] Open
Abstract
INTRODUCTION We aimed to compare the clinical characteristics and outcomes of bloodstream infections (BSI) in cancer patients presenting febrile neutropenia with and without HIV infection, and analyze the prognostic factors for mortality. METHODS BSI episodes in febrile neutropenic patients following chemotherapy were prospectively collected (1997-2018). A case (HIV-infected)-control (non-HIV-infected) sub-analysis was performed (1:2 ratio), matching patients by age, gender, baseline disease, and etiological microorganism. RESULTS From 1755 BSI episodes in neutropenic cancer patients, 60 (3.4%) occurred in those with HIV. HIV characteristics: 51.7% were men who have sex with men; 58.3% had < 200 CD4; 51.7% had a detectable HIV-1 RNA viral load before the BSI episode; 70.0% met AIDS-defining criteria; and 93.3% were on antiretroviral therapy, with a protease inhibitor-based regimen being the most common (53.0%). HIV-infected patients were younger, more frequently male and more commonly presenting chronic liver disease (p < 0.001 for all). BSI due to Enterococcus spp. was significantly more frequent among patients with HIV (p = 0.017) with no differences in other pathogens. HIV-infected patients with cancer presented with shock more frequently (p = 0.014) and had higher mortality (31.7% vs. 18.1%, p = 0.008). In the case-control analysis, cases (HIV-infected) had chronic liver disease (p = 0.003) more frequently, whereas acute leukemia (p = 0.013) and hematopoietic stem-cell transplant (p = 0.023) were more common among controls. There was a non-significant trend for cases to have higher mortality (p = 0.084). However, in multivariate analysis, HIV infection was not associated with mortality (p = 0.196). CONCLUSION HIV-infected patients with cancer developing febrile neutropenia and BSI have different epidemiological and clinical profiles, and experience higher mortality. However, HIV infection by itself was not associated with mortality.
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Affiliation(s)
- Pedro Puerta-Alcalde
- Infectious Diseases Department, Hospital Clinic-IDIBAPS, Carrer de Villarroel 170, 08036, Barcelona, Spain.
| | - Juan Ambrosioni
- Infectious Diseases Department, Hospital Clinic-IDIBAPS, Carrer de Villarroel 170, 08036, Barcelona, Spain.
| | - Mariana Chumbita
- Infectious Diseases Department, Hospital Clinic-IDIBAPS, Carrer de Villarroel 170, 08036, Barcelona, Spain
| | - Marta Hernández-Meneses
- Infectious Diseases Department, Hospital Clinic-IDIBAPS, Carrer de Villarroel 170, 08036, Barcelona, Spain
| | - Nicole Garcia-Pouton
- Infectious Diseases Department, Hospital Clinic-IDIBAPS, Carrer de Villarroel 170, 08036, Barcelona, Spain
| | - Celia Cardozo
- Infectious Diseases Department, Hospital Clinic-IDIBAPS, Carrer de Villarroel 170, 08036, Barcelona, Spain
| | - Estela Moreno-García
- Infectious Diseases Department, Hospital Clinic-IDIBAPS, Carrer de Villarroel 170, 08036, Barcelona, Spain
| | - Francesc Marco
- Microbiology Department, Centre Diagnòstic Biomèdic, Hospital Clinic, Barcelona, Spain
- ISGlobal, Hospital Clinic, University of Barcelona, Barcelona, Spain
| | - Josep Mensa
- Infectious Diseases Department, Hospital Clinic-IDIBAPS, Carrer de Villarroel 170, 08036, Barcelona, Spain
| | - Montserrat Rovira
- Hematology Department, Hospital Clinic-IDIBAPS, Barcelona, Spain
- University of Barcelona, Barcelona, Spain
| | - Jordi Esteve
- Hematology Department, Hospital Clinic-IDIBAPS, Barcelona, Spain
- University of Barcelona, Barcelona, Spain
| | - Jose A Martínez
- Infectious Diseases Department, Hospital Clinic-IDIBAPS, Carrer de Villarroel 170, 08036, Barcelona, Spain
- University of Barcelona, Barcelona, Spain
| | - Felipe García
- Infectious Diseases Department, Hospital Clinic-IDIBAPS, Carrer de Villarroel 170, 08036, Barcelona, Spain
- University of Barcelona, Barcelona, Spain
| | - Josep Mallolas
- Infectious Diseases Department, Hospital Clinic-IDIBAPS, Carrer de Villarroel 170, 08036, Barcelona, Spain
- University of Barcelona, Barcelona, Spain
| | - Alex Soriano
- Infectious Diseases Department, Hospital Clinic-IDIBAPS, Carrer de Villarroel 170, 08036, Barcelona, Spain
- University of Barcelona, Barcelona, Spain
| | - José M Miró
- Infectious Diseases Department, Hospital Clinic-IDIBAPS, Carrer de Villarroel 170, 08036, Barcelona, Spain
- University of Barcelona, Barcelona, Spain
| | - Carolina Garcia-Vidal
- Infectious Diseases Department, Hospital Clinic-IDIBAPS, Carrer de Villarroel 170, 08036, Barcelona, Spain
- University of Barcelona, Barcelona, Spain
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Thomson GK, Jamros K, Snyder JW, Thomson KS. Digital imaging for reading of direct rapid antibiotic susceptibility tests from positive blood cultures. Eur J Clin Microbiol Infect Dis 2021; 40:2105-2112. [PMID: 33895887 DOI: 10.1007/s10096-021-04249-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Accepted: 04/11/2021] [Indexed: 10/21/2022]
Abstract
Delaying effective antibiotic therapy is a major cause of sepsis-associated mortality. The EUCAST rapid antibiotic susceptibility test (RAST) is performed from positive blood cultures to provide rapid results. Disc diffusion tests inoculated with positive blood culture broth are read at 4, 6, and 8 h and interpreted against species and time-specific criteria. Potential problems are the possibility of missing specific reading times for tests and slower growth in incubators that are frequently opened. The current study aimed to assess if digital visualization by the BD Kiestra™ total laboratory automation system is suitable for reading RASTs by capturing images at the correct times and retaining them for review. Utilizing the Kiestra™ InoqulA, 100 μl of positive blood culture broth was lawn-inoculated onto Mueller-Hinton agar and incubated at 35 °C for automated digital zone measurement at 4, 6, and 8 h. Aliquots from 135 positive blood cultures were tested against EUCAST-recommended and other drugs and assessed for readability of digital images. Microdilution MICs were determined in parallel to RASTs. All isolates except 7/10 enterococci yielded images of suitable quality for zone measurement. Of the 641 digitally read tests for other organisms, 207 (32.3%) were readable in 4 h, 555 (86.6%) in 6 h, and 641 (100%) in 8 h. For tests included in EUCAST criteria, 92.1% provided categorical agreement with microdilution MICs. Digital image reading of RASTs is a potentially viable, inexpensive tool for providing rapid susceptibility results which can help reduce sepsis-associated mortality.
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Affiliation(s)
- Gina K Thomson
- Microbiology Department, University of Louisville Hospital, 530 South Jackson St, Louisville, KY, 40202, USA. .,Department of Pathology and Laboratory Medicine, University of Louisville School of Medicine, Louisville, KY, USA.
| | - Kira Jamros
- Microbiology Department, University of Louisville Hospital, 530 South Jackson St, Louisville, KY, 40202, USA
| | - James W Snyder
- Department of Pathology and Laboratory Medicine, University of Louisville School of Medicine, Louisville, KY, USA
| | - Kenneth S Thomson
- Department of Pathology and Laboratory Medicine, University of Louisville School of Medicine, Louisville, KY, USA
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Peng X, Zhou W, Zhu Y, Wan C. Epidemiology, risk factors and outcomes of bloodstream infection caused by ESKAPEEc pathogens among hospitalized children. BMC Pediatr 2021; 21:188. [PMID: 33882891 PMCID: PMC8059001 DOI: 10.1186/s12887-021-02661-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Accepted: 04/12/2021] [Indexed: 12/20/2022] Open
Abstract
Background Bloodstream infection (BSI) resulting from ESKAPEEc pathogens (Enterococcus faecium, Staphylococcus aureus, Klebsiella pneumoniae, Escherichia coli, Acinetobacter baumannii, Pseudomonas aeruginosa and Enterobacter spp) is relevant to high mortality and economic cost. Data concerning the impact of BSI due to ESKAPEEc in pediatric population was virtually scant. Our purpose was to summarize the epidemiology, risk factors and outcomes of ESKAPEEc BSI among hospitalized children. Methods Inpatients diagnosed with BSI with definite etiology between January 2016 and December 2018 were enrolled retrospectively at the West China Second University Hospital. Data were systematically reviewed on patients’ clinical characteristics and laboratory findings to ascertain independent predictors, clinical features and outcomes. Results Of the 228 patients with BSI, 174 (76.3%) were caused by ESKAPEEc (124 MDR-ESKAPEEc). Multivariate analysis demonstrated that premature and/ or low birth weight (odds ratio [OR] = 2.981, P = 0.036), previous surgery and/or trauma (OR = 5.71, P = 0.029) and source of urinary tract infection (OR = 10.60, P = 0.004) were independently associated with ESKAPEEc BSI. The independent risk factor for MRD-ESKAPEEc BSI was nosocomial infection (OR = 3.314, P = 0.037). The overall mortality rate in patients with ESKAPEEc BSI was 14.4% (25/174), and no significant difference was ascertained in mortality between MRD-ESKAPEEc and non-MRD ESKAPEEc BSI groups (13.7% vs. 11.4%, P = 0.692). In addition, previous surgery and/or trauma, thrombocytopenia, and mechanical ventilation were significant risk factors for mortality caused by ESKAPEEc BSI. Conclusions More than two-thirds of BSI among hospitalized children were caused by ESKAPEEc. Previous surgery and/or trauma, thrombocytopenia and mechanical ventilation increased the risk rate for mortality in ESKAPEEc BSI. The risk factors ascertained could assist physicians to early suspect ESKAPEEc BSI and MDR ESKAPEEc BSI.
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Affiliation(s)
- Xiaoshan Peng
- Department of Pediatrics, West China Second Hospital, Sichuan University, No 20, 3rd section of Renmin South Road, 610041, Chengdu, China.,Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Chengdu, China
| | - Wei Zhou
- Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Chengdu, China.,Department of Clinical Microbiology Laboratory, West China Second Hospital, Sichuan University, Chengdu, China
| | - Yu Zhu
- Department of Pediatrics, West China Second Hospital, Sichuan University, No 20, 3rd section of Renmin South Road, 610041, Chengdu, China. .,Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Chengdu, China.
| | - Chaomin Wan
- Department of Pediatrics, West China Second Hospital, Sichuan University, No 20, 3rd section of Renmin South Road, 610041, Chengdu, China. .,Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Chengdu, China.
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Gudiol C, Albasanz-Puig A, Cuervo G, Carratalà J. Understanding and Managing Sepsis in Patients With Cancer in the Era of Antimicrobial Resistance. Front Med (Lausanne) 2021; 8:636547. [PMID: 33869250 PMCID: PMC8044357 DOI: 10.3389/fmed.2021.636547] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Accepted: 03/08/2021] [Indexed: 12/23/2022] Open
Abstract
Sepsis is a frequent complication in immunosuppressed cancer patients and hematopoietic stem cell transplant recipients that is associated with high morbidity and mortality rates. The worldwide emergence of antimicrobial resistance is of special concern in this population because any delay in starting adequate empirical antibiotic therapy can lead to poor outcomes. In this review, we aim to address: (1) the mechanisms involved in the development of sepsis and septic shock in these patients; (2) the risk factors associated with a worse prognosis; (3) the impact of adequate initial empirical antibiotic therapy given the current era of widespread antimicrobial resistance; and (4) the optimal management of sepsis, including adequate and early source control of infection, optimized antibiotic use based on the pharmacokinetic and pharmacodynamics changes in these patients, and the role of the new available antibiotics.
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Affiliation(s)
- Carlota Gudiol
- Infectious Diseases Department, Bellvitge University Hospital, Bellvitge Biomedical Research Institute (IDIBELL), University of Barcelona, Barcelona, Spain.,Institut Català d'Oncologia (ICO), Hospital Duran i Reynals, Bellvitge Biomedical Research Institute (IDIBELL), Barcelona, Spain.,Spanish Network for Research in Infectious Diseases (REIPI RD16/0016/0001), Instituto de Salud Carlos III, Madrid, Spain
| | - Adaia Albasanz-Puig
- Infectious Diseases Department, Bellvitge University Hospital, Bellvitge Biomedical Research Institute (IDIBELL), University of Barcelona, Barcelona, Spain.,Spanish Network for Research in Infectious Diseases (REIPI RD16/0016/0001), Instituto de Salud Carlos III, Madrid, Spain
| | - Guillermo Cuervo
- Infectious Diseases Department, Bellvitge University Hospital, Bellvitge Biomedical Research Institute (IDIBELL), University of Barcelona, Barcelona, Spain.,Spanish Network for Research in Infectious Diseases (REIPI RD16/0016/0001), Instituto de Salud Carlos III, Madrid, Spain
| | - Jordi Carratalà
- Infectious Diseases Department, Bellvitge University Hospital, Bellvitge Biomedical Research Institute (IDIBELL), University of Barcelona, Barcelona, Spain.,Spanish Network for Research in Infectious Diseases (REIPI RD16/0016/0001), Instituto de Salud Carlos III, Madrid, Spain
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Abstract
The management of febrile neutropenia is a backbone of treating patients with hematologic malignancies and has evolved over the past decades. This article reviews my approach to the evaluation and treatment of febrile neutropenic patients. Key topics discussed include antibacterial and antifungal prophylaxis, the initial workup for fever, the choice of the empiric antibiotic regimen and its modifications, and criteria for discontinuation. For each of these questions, I review the literature and present my perspective.
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40
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Anforderungen an die Infektionsprävention bei der medizinischen Versorgung von immunsupprimierten Patienten. Bundesgesundheitsblatt Gesundheitsforschung Gesundheitsschutz 2021; 64:232-264. [PMID: 33394069 PMCID: PMC7780910 DOI: 10.1007/s00103-020-03265-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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41
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Guisado-Gil AB, Aguilar-Guisado M, Peñalva G, Lepe JA, Espigado I, Rodríguez-Arbolí E, González-Campos J, Rodríguez-Torres N, Montero-Cuadrado MI, Falantes-González JF, Reguera-Ortega JL, Gil-Navarro MV, Molina J, Pérez-Simón JA, Cisneros JM. Long-Term Impact of an Educational Antimicrobial Stewardship Program on Management of Patients with Hematological Diseases. Antibiotics (Basel) 2021; 10:antibiotics10020136. [PMID: 33573180 PMCID: PMC7911074 DOI: 10.3390/antibiotics10020136] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Revised: 01/06/2021] [Accepted: 01/27/2021] [Indexed: 02/01/2023] Open
Abstract
Antimicrobial stewardship programs (ASPs) in hematological patients are especially relevant. However, information about ASPs in this population is scarce. For 11 years, we quarterly assessed antimicrobial consumption and incidence and death rates of multidrug-resistant (MDR) bloodstream infections (BSI) in the hematology Department. Healthcare activity indicators were also monitored yearly. We performed an interrupted time-series analysis. Antimicrobials showed a sustained reduction with a relative effect of −62.3% (95% CI −84.5 to −40.1) nine years after the inception of the ASP, being especially relevant for antifungals (relative effect −80.4%, −90.9 to −69.9), quinolones (relative effect −85.0%, −102.0 to −68.1), and carbapenems (relative effect −68.8%, −126.0 to −10.6). Incidence density of MDR BSI remained low and stable (mean 1.10 vs. 0.82 episodes per 1000 occupied bed days for the pre-intervention and the ASP period, respectively) with a quarterly percentage of change of −0.3% (95% CI −2.0 to 1.4). Early and late mortality of MDR BSI presented a steady trend (quarterly percentage of change −0.7%, 95% CI −1.7 to 0.3 and −0.6%, 95% CI −1.5 to 0.3, respectively). Volume and complexity of healthcare activity increased over the years. The ASP effectively achieved long-term reductions in antimicrobial consumption and improvements in the prescription profile, without increasing the mortality of MDR BSI.
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Affiliation(s)
- Ana Belén Guisado-Gil
- Department of Infectious Diseases, Microbiology and Preventive Medicine, Infectious Diseases Research Group, Institute of Biomedicine of Seville (IBiS), University of Seville/CSIC/University Hospital Virgen del Rocio, 41013 Seville, Spain; (A.B.G.-G.); (G.P.); (J.A.L.); (J.M.); (J.M.C.)
- Department of Pharmacy, University Hospital Virgen del Rocio, 41013 Seville, Spain;
| | - Manuela Aguilar-Guisado
- Department of Infectious Diseases, Microbiology and Preventive Medicine, Infectious Diseases Research Group, Institute of Biomedicine of Seville (IBiS), University of Seville/CSIC/University Hospital Virgen del Rocio, 41013 Seville, Spain; (A.B.G.-G.); (G.P.); (J.A.L.); (J.M.); (J.M.C.)
- Correspondence: ; Tel.: +34-670943816
| | - Germán Peñalva
- Department of Infectious Diseases, Microbiology and Preventive Medicine, Infectious Diseases Research Group, Institute of Biomedicine of Seville (IBiS), University of Seville/CSIC/University Hospital Virgen del Rocio, 41013 Seville, Spain; (A.B.G.-G.); (G.P.); (J.A.L.); (J.M.); (J.M.C.)
| | - José Antonio Lepe
- Department of Infectious Diseases, Microbiology and Preventive Medicine, Infectious Diseases Research Group, Institute of Biomedicine of Seville (IBiS), University of Seville/CSIC/University Hospital Virgen del Rocio, 41013 Seville, Spain; (A.B.G.-G.); (G.P.); (J.A.L.); (J.M.); (J.M.C.)
| | - Ildefonso Espigado
- Department of Hematology, Institute of Biomedicine of Seville (IBiS/CSIC/CIBERONC), University Hospital Virgen del Rocio, University of Seville, 41013 Seville, Spain; (I.E.); (E.R.-A.); (J.G.-C.); (N.R.-T.); (M.I.M.-C.); (J.F.F.-G.); (J.L.R.-O.); (J.-A.P.-S.)
| | - Eduardo Rodríguez-Arbolí
- Department of Hematology, Institute of Biomedicine of Seville (IBiS/CSIC/CIBERONC), University Hospital Virgen del Rocio, University of Seville, 41013 Seville, Spain; (I.E.); (E.R.-A.); (J.G.-C.); (N.R.-T.); (M.I.M.-C.); (J.F.F.-G.); (J.L.R.-O.); (J.-A.P.-S.)
| | - José González-Campos
- Department of Hematology, Institute of Biomedicine of Seville (IBiS/CSIC/CIBERONC), University Hospital Virgen del Rocio, University of Seville, 41013 Seville, Spain; (I.E.); (E.R.-A.); (J.G.-C.); (N.R.-T.); (M.I.M.-C.); (J.F.F.-G.); (J.L.R.-O.); (J.-A.P.-S.)
| | - Nancy Rodríguez-Torres
- Department of Hematology, Institute of Biomedicine of Seville (IBiS/CSIC/CIBERONC), University Hospital Virgen del Rocio, University of Seville, 41013 Seville, Spain; (I.E.); (E.R.-A.); (J.G.-C.); (N.R.-T.); (M.I.M.-C.); (J.F.F.-G.); (J.L.R.-O.); (J.-A.P.-S.)
| | - María Isabel Montero-Cuadrado
- Department of Hematology, Institute of Biomedicine of Seville (IBiS/CSIC/CIBERONC), University Hospital Virgen del Rocio, University of Seville, 41013 Seville, Spain; (I.E.); (E.R.-A.); (J.G.-C.); (N.R.-T.); (M.I.M.-C.); (J.F.F.-G.); (J.L.R.-O.); (J.-A.P.-S.)
| | - José Francisco Falantes-González
- Department of Hematology, Institute of Biomedicine of Seville (IBiS/CSIC/CIBERONC), University Hospital Virgen del Rocio, University of Seville, 41013 Seville, Spain; (I.E.); (E.R.-A.); (J.G.-C.); (N.R.-T.); (M.I.M.-C.); (J.F.F.-G.); (J.L.R.-O.); (J.-A.P.-S.)
| | - Juan Luis Reguera-Ortega
- Department of Hematology, Institute of Biomedicine of Seville (IBiS/CSIC/CIBERONC), University Hospital Virgen del Rocio, University of Seville, 41013 Seville, Spain; (I.E.); (E.R.-A.); (J.G.-C.); (N.R.-T.); (M.I.M.-C.); (J.F.F.-G.); (J.L.R.-O.); (J.-A.P.-S.)
| | | | - José Molina
- Department of Infectious Diseases, Microbiology and Preventive Medicine, Infectious Diseases Research Group, Institute of Biomedicine of Seville (IBiS), University of Seville/CSIC/University Hospital Virgen del Rocio, 41013 Seville, Spain; (A.B.G.-G.); (G.P.); (J.A.L.); (J.M.); (J.M.C.)
| | - José-Antonio Pérez-Simón
- Department of Hematology, Institute of Biomedicine of Seville (IBiS/CSIC/CIBERONC), University Hospital Virgen del Rocio, University of Seville, 41013 Seville, Spain; (I.E.); (E.R.-A.); (J.G.-C.); (N.R.-T.); (M.I.M.-C.); (J.F.F.-G.); (J.L.R.-O.); (J.-A.P.-S.)
| | - José Miguel Cisneros
- Department of Infectious Diseases, Microbiology and Preventive Medicine, Infectious Diseases Research Group, Institute of Biomedicine of Seville (IBiS), University of Seville/CSIC/University Hospital Virgen del Rocio, 41013 Seville, Spain; (A.B.G.-G.); (G.P.); (J.A.L.); (J.M.); (J.M.C.)
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Zinter MS, Dvorak CC, Auletta JJ. How We Treat Fever and Hypotension in Pediatric Hematopoietic Cell Transplant Patients. Front Oncol 2020; 10:581447. [PMID: 33042850 PMCID: PMC7526343 DOI: 10.3389/fonc.2020.581447] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Accepted: 08/24/2020] [Indexed: 11/13/2022] Open
Abstract
Pediatric allogeneic hematopoietic cell transplant (HCT) survival is limited by the development of post-transplant infections. In this overview, we discuss a clinical approach to the prompt recognition and treatment of fever and hypotension in pediatric HCT patients. Special attention is paid to individualized hemodynamic resuscitation, thorough diagnostic testing, novel anti-pathogen therapies, and the multimodal support required for recovery. We present three case vignettes that illustrate the complexities of post-HCT sepsis and highlight best practices that contribute to optimal transplant survival in children.
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Affiliation(s)
- Matt S Zinter
- Division of Critical Care Medicine, UCSF Benioff Children's Hospital, University of California, San Francisco, San Francisco, CA, United States
| | - Christopher C Dvorak
- Division of Allergy, Immunology, and Blood and Marrow Transplantation, UCSF Benioff Children's Hospital, University of California, San Francisco, San Francisco, CA, United States
| | - Jeffery J Auletta
- Division of Hematology, Oncology, Blood and Marrow Transplantation, Nationwide Children's Hospital, Columbus, OH, United States.,Division of Infectious Diseases, Nationwide Children's Hospital, Columbus, OH, United States
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Impact of Rapid Antimicrobial Susceptibility Testing in Gram-Negative Rod Bacteremia: a Quasi-experimental Study. J Clin Microbiol 2020; 58:JCM.00360-20. [PMID: 32434782 DOI: 10.1128/jcm.00360-20] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Accepted: 05/11/2020] [Indexed: 12/22/2022] Open
Abstract
Clinical justification for rapid antimicrobial susceptibility testing (AST) in Gram-negative rod (GNR) bacteremia is compelling; however, evidence supporting its value is sparse. We investigated the impact of rapid AST on clinical and antimicrobial stewardship outcomes in real-world practice. We performed a before-and-after quasi-experimental study from February 2018 to July 2019 at a tertiary hospital of the 24-h/day, 7-day/week implementation of the direct Vitek 2 AST method from positive blood culture broth for GNR bacteremia with electronic isolate-specific de-escalation comments and daytime antibiotic stewardship program (ASP) intervention. The primary outcome was time to appropriate antibiotic escalation or de-escalation, and secondary outcomes included time to oral antibiotic stepdown, hospital length of stay (LOS), all-cause 30-day mortality, 7-day incidence of acute kidney injury (AKI), and 30-day incidence of Clostridioides difficile infection (CDI). A total of 671 GNR isolates were included from 643 adult patients. Among patients for whom antibiotic change occurred after rapid AST result, rapid AST was associated with a trend in decreased time to escalation or de-escalation (hazard ratio, 1.22; 95% confidence interval [CI], 0.99 to 1.51; P = 0.06), with median times of 52.3 versus 42.2 h. Secondary outcomes were similar in both groups and include median time to oral antibiotic stepdown, LOS, all-cause mortality, and incidence of AKI and CDI. Rapid AST led to improved stewardship measures but did not impact clinical patient outcomes. These results highlight that multiple variables in addition to the timing of the AST result contribute to clinical outcome and that further intervention may be required to clinically justify rapid AST implementation.
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Ji J, Klaus J, Burnham JP, Michelson A, McEvoy CA, Kollef MH, Lyons PG. Bloodstream Infections and Delayed Antibiotic Coverage Are Associated With Negative Hospital Outcomes in Hematopoietic Stem Cell Transplant Recipients. Chest 2020; 158:1385-1396. [PMID: 32561441 DOI: 10.1016/j.chest.2020.06.011] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Revised: 05/26/2020] [Accepted: 06/06/2020] [Indexed: 12/22/2022] Open
Abstract
BACKGROUND Bloodstream infections (BSIs) are common after hematopoietic stem cell transplantation (HSCT) and are associated with increased long-term morbidity and mortality. However, short-term outcomes related to BSI in this population remain unknown. More specifically, it is unclear whether choices related to empiric antimicrobials for potentially infected patients are associated with patient outcomes. RESEARCH QUESTION Are potential delays in appropriate antibiotics associated with hospital outcomes among HSCT recipients with BSI? STUDY DESIGN AND METHODS We conducted a retrospective cohort study at a large comprehensive inpatient academic cancer center between January 2014 and June 2017. We identified all admissions for HSCT and prior recipients of HSCT. We defined potential delay in appropriate antibiotics as > 24 h between positive blood culture results and the initial dose of an antimicrobial with activity against the pathogen. RESULTS We evaluated 2,751 hospital admissions from 1,086 patients. Of these admissions, 395 (14.4%) involved one or more BSIs. Of these 395 hospitalizations, 44 (11.1%) involved potential delays in appropriate antibiotics. The incidence of mortality was higher in BSI hospitalizations than in those without BSI (23% vs 4.5%; P < .001). In multivariable analysis, BSI was an independent predictor of mortality (OR, 8.14; 95% CI, 5.06-13.1; P < .001). Mortality was higher for admissions with potentially delayed appropriate antibiotics than for those with appropriate antibiotics (48% vs 20%; P < .001). Potential delay in antibiotics was also an independent predictor of mortality in multivariable analysis (OR, 13.8; 95% CI, 5.27-35.9; P < .001). INTERPRETATION BSIs were common and independently associated with increased morbidity and mortality. Delays in administration of appropriate antimicrobials were identified as an important factor in hospital morbidity and mortality. These findings may have important implications for our current practice of empiric antibiotic treatment in HSCT patients.
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Affiliation(s)
- Joyce Ji
- Division of Hospital Medicine, Department of Medicine, Washington University School of Medicine, St. Louis, MO
| | - Jeff Klaus
- Department of Pharmacy, Barnes-Jewish Hospital, St. Louis, MO
| | - Jason P Burnham
- Division of Infectious Diseases, Department of Medicine, Washington University School of Medicine, St. Louis, MO
| | - Andrew Michelson
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Washington University School of Medicine, St. Louis, MO
| | - Colleen A McEvoy
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Washington University School of Medicine, St. Louis, MO
| | - Marin H Kollef
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Washington University School of Medicine, St. Louis, MO
| | - Patrick G Lyons
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Washington University School of Medicine, St. Louis, MO; Siteman Cancer Center, St. Louis, MO; Healthcare Innovation Lab, BJC HealthCare, St. Louis, MO.
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Antibiotic prescribing and outcomes in cancer patients with febrile neutropenia in the emergency department. PLoS One 2020; 15:e0229828. [PMID: 32109264 PMCID: PMC7048306 DOI: 10.1371/journal.pone.0229828] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Accepted: 02/16/2020] [Indexed: 01/26/2023] Open
Abstract
Introduction The benefit of reducing the time of antibiotic initiation in the emergency department (ED) for neutropenic patients is controversial and the research on the impact of antibiotic adherence to international guidelines in the ED is scarce. We aimed to investigate the effect of antibiotic timing and appropriateness on outcomes in patients with febrile neutropenia (FN) and to assess the performance of the MASCC risk-index to risk-stratify such patients in the ED. Methods We prospectively identified patients with FN who presented to our ED and assessed their Multinational Association of Supportive Care in Cancer (MASCC) risk-index. The time to parenteral antibiotic initiation and the appropriateness of the antibiotic regimen according to international guidelines were retrospectively abstracted. The performance of the MASCC risk-index in predicting the absence of complication was assessed with sensitivity, specificity and the area under the receiver operating characteristics curve (AUC). We investigated the effect of the time to antibiotic initiation and the appropriateness of the antibiotic regimen on the outcome (ICU admission or death) by logistic regression analyses. Results We included 249 patients. Median age was 60 years and 67.9% had hematological malignancies, 26 (10.4%) were admitted to the ICU and 23 (9.8%) died during hospital stay. Among the 173 patients at low risk according to the MASCC risk-index, 56 (32.4%) presented at least one complication including 11 deaths. The MASCC risk-index had a sensitivity and a specificity of 0.78% and 0.43%, respectively, in predicting the absence of complication and the AUC was 0.67. The time to antibiotic initiation in the ED was not associated with the outcome after adjusting for performance status and shock-index. Conversely, an inadequate ED antibiotic regimen was associated with higher ICU admission or death during hospital stay (OR = 3.50; 95% CI = 1.49 to 8.28). Conclusion An inadequate ED antibiotic regimen in patients with FN was significantly associated with higher ICU admission or death during hospital stay.
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The Value of Adding Surveillance Cultures to Fluoroquinolone Prophylaxis in the Management of Multiresistant Gram Negative Bacterial Infections in Acute Myeloid Leukemia. J Clin Med 2019; 8:jcm8111985. [PMID: 31731650 PMCID: PMC6912560 DOI: 10.3390/jcm8111985] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Revised: 11/02/2019] [Accepted: 11/13/2019] [Indexed: 12/31/2022] Open
Abstract
Multidrug resistant Gram-Negative Bacterial Infections (MR-GNBI) are an increasing cause of mortality in acute myeloid leukemia (AML), compromising the success of antineoplastic therapy. We prospectively explored a novel strategy, including mandatory fluoroquinolone prophylaxis, weekly surveillance cultures (SC) and targeted antimicrobial therapy for febrile neutropenia, aimed to reduce infectious mortality due to MR-GNBI. Over 146 cycles of chemotherapy, cumulative incidence of colonization was 50%. Half of the colonizations occurred in the consolidation phase of treatment. Application of this strategy led to a significant reduction in the incidence of GNB and carbapenemase-producing Klebisella pneumoniae (cpKp) species, resulting in a reduction of infectious mortality (HR 0.35 [95%, CI 0.13–0.96], p = 0.042). In multivariate analysis, fluroquinolone prophylaxis in addition to SC was associated with improved survival (OR 0.55 [95% CI 0.38–0.79], p = 0.001). Targeted therapy for colonized patients did not overcome the risk of death once cpKp or XDR Pseudomonas aeruginosa infections were developed. Mortality rate after transplant was similar between colonized and not colonized patients. However only 9% of transplanted patients were colonized by cpkp. In conclusion, colonization is a common phenomenon, not limited to the induction phase. This strategy reduces infectious mortality by lowering the global incidence of GN infections and the spread of resistant species.
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Garcia-Vidal C, Sanjuan G, Puerta-Alcalde P, Moreno-García E, Soriano A. Artificial intelligence to support clinical decision-making processes. EBioMedicine 2019; 46:27-29. [PMID: 31303500 PMCID: PMC6710912 DOI: 10.1016/j.ebiom.2019.07.019] [Citation(s) in RCA: 61] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2019] [Accepted: 07/05/2019] [Indexed: 12/26/2022] Open
Affiliation(s)
- Carolina Garcia-Vidal
- Infectious Diseases Department, Hospital Clínic-IDIBAPS, University of Barcelona, Barcelona, Spain..
| | | | - Pedro Puerta-Alcalde
- Infectious Diseases Department, Hospital Clínic-IDIBAPS, University of Barcelona, Barcelona, Spain
| | - Estela Moreno-García
- Infectious Diseases Department, Hospital Clínic-IDIBAPS, University of Barcelona, Barcelona, Spain
| | - Alex Soriano
- Infectious Diseases Department, Hospital Clínic-IDIBAPS, University of Barcelona, Barcelona, Spain
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