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Hatzianastasiou S, Vlachos P, Stravopodis G, Elaiopoulos D, Koukousli A, Papaparaskevas J, Chamogeorgakis T, Papadopoulos K, Soulele T, Chilidou D, Kolovou K, Gkouziouta A, Bonios M, Adamopoulos S, Dimopoulos S. Incidence, risk factors and clinical outcome of multidrug-resistant organisms after heart transplantation. World J Transplant 2024; 14:93567. [PMID: 38947964 PMCID: PMC11212582 DOI: 10.5500/wjt.v14.i2.93567] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Revised: 05/05/2024] [Accepted: 05/20/2024] [Indexed: 06/13/2024] Open
Abstract
BACKGROUND Transplant recipients commonly harbor multidrug-resistant organisms (MDROs), as a result of frequent hospital admissions and increased exposure to antimicrobials and invasive procedures. AIM To investigate the impact of patient demographic and clinical characteristics on MDRO acquisition, as well as the impact of MDRO acquisition on intensive care unit (ICU) and hospital length of stay, and on ICU mortality and 1-year mortality post heart transplantation. METHODS This retrospective cohort study analyzed 98 consecutive heart transplant patients over a ten-year period (2013-2022) in a single transplantation center. Data was collected regarding MDROs commonly encountered in critical care. RESULTS Among the 98 transplanted patients (70% male), about a third (32%) acquired or already harbored MDROs upon transplantation (MDRO group), while two thirds did not (MDRO-free group). The prevalent MDROs were Acinetobacter baumannii (14%), Pseudomonas aeruginosa (12%) and Klebsiella pneumoniae (11%). Compared to MDRO-free patients, the MDRO group was characterized by higher body mass index (P = 0.002), higher rates of renal failure (P = 0.017), primary graft dysfunction (10% vs 4.5%, P = 0.001), surgical re-exploration (34% vs 14%, P = 0.017), mechanical circulatory support (47% vs 26% P = 0.037) and renal replacement therapy (28% vs 9%, P = 0.014), as well as longer extracorporeal circulation time (median 210 vs 161 min, P = 0.003). The median length of stay was longer in the MDRO group, namely ICU stay was 16 vs 9 d in the MDRO-free group (P = 0.001), and hospital stay was 38 vs 28 d (P = 0.006), while 1-year mortality was higher (28% vs 7.6%, log-rank-χ 2: 7.34). CONCLUSION Following heart transplantation, a predominance of Gram-negative MDROs was noted. MDRO acquisition was associated with higher complication rates, prolonged ICU and total hospital stay, and higher post-transplantation mortality.
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Affiliation(s)
- Sophia Hatzianastasiou
- Microbiology Department and Infection Control Office, Onassis Cardiac Surgery Center, Athens 17674, Greece
| | - Paraskevas Vlachos
- Heart Transplantation Unit, Onassis Cardiac Surgery Center, Athens 17674, Greece
| | - Georgios Stravopodis
- Microbiology Department and Infection Control Office, Onassis Cardiac Surgery Center, Athens 17674, Greece
| | - Dimitrios Elaiopoulos
- Cardiac Surgery Intensive Care Unit, Onassis Cardiac Surgery Center, Athens 17674, Greece
| | - Afentra Koukousli
- Microbiology Department and Infection Control Office, Onassis Cardiac Surgery Center, Athens 17674, Greece
| | - Josef Papaparaskevas
- Microbiology Department and Infection Control Office, Onassis Cardiac Surgery Center, Athens 17674, Greece
| | | | - Kyrillos Papadopoulos
- Cardiac Surgery Intensive Care Unit, Onassis Cardiac Surgery Center, Athens 17674, Greece
| | - Theodora Soulele
- Cardiac Surgery Intensive Care Unit, Onassis Cardiac Surgery Center, Athens 17674, Greece
| | - Despoina Chilidou
- Heart Transplantation Unit, Onassis Cardiac Surgery Center, Athens 17674, Greece
| | - Kyriaki Kolovou
- Cardiac Surgery Intensive Care Unit, Onassis Cardiac Surgery Center, Athens 17674, Greece
| | - Aggeliki Gkouziouta
- Heart Transplantation Unit, Onassis Cardiac Surgery Center, Athens 17674, Greece
| | - Michail Bonios
- Heart Transplantation Unit, Onassis Cardiac Surgery Center, Athens 17674, Greece
| | | | - Stavros Dimopoulos
- Cardiac Surgery Intensive Care Unit, Onassis Cardiac Surgery Center, Athens 17674, Greece
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Freire MP, Pouch S, Manesh A, Giannella M. Burden and Management of Multi-Drug Resistant Organism Infections in Solid Organ Transplant Recipients Across the World: A Narrative Review. Transpl Int 2024; 37:12469. [PMID: 38952482 PMCID: PMC11215024 DOI: 10.3389/ti.2024.12469] [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: 11/24/2023] [Accepted: 05/07/2024] [Indexed: 07/03/2024]
Abstract
Solid organ transplant (SOT) recipients are particularly susceptible to infections caused by multidrug-resistant organisms (MDRO) and are often the first to be affected by an emerging resistant pathogen. Unfortunately, their prevalence and impact on morbidity and mortality according to the type of graft is not systematically reported from high-as well as from low and middle-income countries (HIC and LMIC). Thus, epidemiology on MDRO in SOT recipients could be subjected to reporting bias. In addition, screening practices and diagnostic resources may vary between countries, as well as the availability of new drugs. In this review, we aimed to depict the burden of main Gram-negative MDRO in SOT patients across HIC and LMIC and to provide an overview of current diagnostic and therapeutic resources.
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Affiliation(s)
- Maristela Pinheiro Freire
- Department of Infectious Diseases, Hospital das Clínicas, University of Sao Paulo School of Medicine, Sao Paulo, Brazil
| | - Stephanie Pouch
- Transplant Infectious Diseases, Emory University School of Medicine, Atlanta, GA, United States
| | - Abi Manesh
- Department of Infectious Diseases, Christian Medical College, Vellore, India
| | - Maddalena Giannella
- Department of Medical and Surgical Sciences, University of Bologna, Bologna, Italy
- Infectious Diseases Unit, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
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Ayaz ÇM, Turhan Ö, Yılmaz VT, Adanır H, Sezer B, Öğünç D. Can the pan-immune-inflammation value predict gram negative bloodstream infection-related 30-day mortality in solid organ transplant patients? BMC Infect Dis 2024; 24:526. [PMID: 38789916 PMCID: PMC11127423 DOI: 10.1186/s12879-024-09413-x] [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: 02/20/2024] [Accepted: 05/17/2024] [Indexed: 05/26/2024] Open
Abstract
BACKGROUND The recently used pan-immune-inflammation value (PIV) has not been adequately studied as a predictive marker for mortality in immunosuppressed patients. The aim of this study was to evaluate the usefulness of baseline PIV level as a predictor of 30-day mortality in solid organ transplant (SOT) recipients with gram negative bloodstream infections (GN-BSI). METHODS This retrospective, cross-sectional study was conducted between January 1, 2019, and December 31, 2022, in 1104 SOT recipients. During the study period, 118 GN-BSI were recorded in 113 patients. Clinical, epidemiological, and laboratory data were collected, and mortality rates (30-day and all-cause) were recorded. RESULTS The 113 recipients had a median age of 50 years [interquartile range (IQR) 37.5-61.5 years] with a male predominance (n = 72, 63.7%). The three most common microorganisms were as follows: 46 isolates (38.9%) of Escherichia coli, 41 (34.7%) of Klebsiella pneumoniae, and 12 (10.2%) of Acinetobacter baumannii. In 44.9% and 35.6% of the isolates, production of extended-spectrum beta-lactamases and carbapenem resistance were detected, respectively. The incidence of carbapenem-resistant GN-BSI was higher in liver recipients than in renal recipients (n = 27, 69.2% vs n = 13, 17.6%, p < 0.001). All-cause and 30-day mortality rates after GN-BSI were 26.5% (n = 30), and 16.8% (n = 19), respectively. In the group with GN-BSI-related 30-day mortality, the median PIV level was significantly lower (327.3, IQR 64.8-795.4 vs. 1049.6, IQR 338.6-2177.1; p = 0.002). The binary logistic regression analysis identified low PIV level [hazard ratio (HR) = 0.93, 95% confidence interval (CI) 0.86-0.99; p = 0.04], and increased age (HR = 1.05, 95% CI 1.01-1.09; p = 0.002) as factors associated with 30-day mortality. The receiver operating characteristic analysis revealed that PIV could determine the GN-BSI-related 30-day mortality with area under curve (AUC): 0.723, 95% CI 0.597-0.848, p = 0.0005. CONCLUSIONS PIV is a simple and inexpensive biomarker that can be used to estimate mortality in immunosuppressed patients, but the results need to be interpreted carefully.
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Affiliation(s)
- Çağlayan Merve Ayaz
- Department of Infectious Diseases and Clinical Microbiology, Faculty of Medicine, Akdeniz University, Antalya, Turkey
| | - Özge Turhan
- Department of Infectious Diseases and Clinical Microbiology, Faculty of Medicine, Akdeniz University, Antalya, Turkey.
| | - Vural Taner Yılmaz
- Department of Internal Medicine, Division of Nephrology, Faculty of Medicine, Akdeniz University, Antalya, Turkey
| | - Haydar Adanır
- Department of Internal Medicine, Division of Gastroenterology, Faculty of Medicine, Akdeniz University, Antalya, Turkey
| | - Beyza Sezer
- Department of Infectious Diseases and Clinical Microbiology, Faculty of Medicine, Akdeniz University, Antalya, Turkey
| | - Dilara Öğünç
- Department of Medical Microbiology, Faculty of Medicine, Akdeniz University, Antalya, Turkey
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Courjon J, Neofytos D, van Delden C. Bacterial infections in solid organ transplant recipients. Curr Opin Organ Transplant 2024; 29:155-160. [PMID: 38205868 DOI: 10.1097/mot.0000000000001134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2024]
Abstract
PURPOSE OF REVIEW Bacteria are the leading cause of infections in solid organ transplant (SOT) recipients, significantly impacting patient outcome. Recently detailed and comprehensive epidemiological data have been published. RECENT FINDING This literature review aims to provide an overview of bacterial infections affecting different types of SOT recipients, emphasizing underlying risk factors and pathophysiological mechanisms. SUMMARY Lung transplantation connects two microbiotas: one derived from the donor's lower respiratory tract with one from the recipient's upper respiratory tract. Similarly, liver transplantation involves a connection to the digestive tract and its microbiota through the bile ducts. For heart transplant recipients, specific factors are related to the management strategies for end-stage heart failure based with different circulatory support tools. Kidney and kidney-pancreas transplant recipients commonly experience asymptomatic bacteriuria, but recent studies have suggested the absence of benefice of routine treatment. Bloodstream infections (BSI) are frequent and affect all SOT recipients. Nonorgan-related risk factors as age, comorbidity index score, and leukopenia contribute to BSI development. Bacterial opportunistic infections have become rare in the presence of efficient prophylaxis. Understanding the epidemiology, risk factors, and pathophysiology of bacterial infections in SOT recipients is crucial for effective management and improved patient outcomes.
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Affiliation(s)
- Johan Courjon
- Transplant Infectious Diseases Unit, Service of Infectious Diseases, University Hospitals Geneva, Geneva, Switzerland
- Université Côte d'Azur, Inserm, C3M, Nice, France
| | - Dionysios Neofytos
- Transplant Infectious Diseases Unit, Service of Infectious Diseases, University Hospitals Geneva, Geneva, Switzerland
| | - Christian van Delden
- Transplant Infectious Diseases Unit, Service of Infectious Diseases, University Hospitals Geneva, Geneva, Switzerland
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Adelman MW, Connor AA, Hsu E, Saharia A, Mobley CM, Victor DW, Hobeika MJ, Lin J, Grimes KA, Ramos E, Pedroza C, Brombosz EW, Ghobrial RM, Arias CA. Bloodstream infections after solid organ transplantation: clinical epidemiology and antimicrobial resistance (2016-21). JAC Antimicrob Resist 2024; 6:dlad158. [PMID: 38213312 PMCID: PMC10783261 DOI: 10.1093/jacamr/dlad158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Accepted: 12/21/2023] [Indexed: 01/13/2024] Open
Abstract
Background Solid organ transplant (SOT) recipients are at risk of bloodstream infections (BSIs) with MDR organisms (MDROs). Objectives To describe the epidemiology of BSI in the year after several types of SOT, as well as the prevalence of MDRO infections in this population. Methods We conducted a single-centre, retrospective study of kidney, liver, heart, and multi-organ transplantation patients. We examined BSIs ≤1 year from SOT and classified MDRO phenotypes for Staphylococcus aureus, enterococci, Enterobacterales, Pseudomonas aeruginosa and Candida spp. We compared BSI characteristics between SOT types and determined risk factors for 90 day mortality. Results We included 2293 patients [1251 (54.6%) kidney, 663 (28.9%) liver, 219 (9.6%) heart and 160 (7.0%) multi-organ transplant]. Overall, 8.5% of patients developed a BSI. BSIs were most common after multi-organ (23.1%) and liver (11.3%) transplantation (P < 0.001). Among 196 patients with BSI, 323 unique isolates were recovered, 147 (45.5%) of which were MDROs. MDROs were most common after liver transplant (53.4%). The most frequent MDROs were VRE (69.8% of enterococci) and ESBL-producing and carbapenem-resistant Enterobacterales (29.2% and 27.2% of Enterobacterales, respectively). Mortality after BSI was 9.7%; VRE was independently associated with mortality (adjusted OR 6.0, 95% CI 1.7-21.3). Conclusions BSI incidence after SOT was 8.5%, with a high proportion of MDROs (45.5%), especially after liver transplantation. These data, in conjunction with local antimicrobial resistance patterns and prescribing practices, may help guide empirical antimicrobial selection and stewardship practices after SOT.
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Affiliation(s)
- Max W Adelman
- Division of Infectious Diseases, Department of Medicine, Houston Methodist Hospital, Houston, TX, USA
- Center for Infectious Diseases, Houston Methodist Research Institute, Houston, TX, USA
- Division of Pulmonary, Critical Care, and Sleep Medicine, Houston Methodist Hospital, Houston, TX, USA
- Department of Medicine, Weill Cornell Medical College, NewYork, NY, USA
| | - Ashton A Connor
- Department of Surgery, Weill Cornell Medical College, New York, NY, USA
- Department of Surgery, Houston Methodist Hospital, Houston, TX, USA
- J.C. Walter, Jr. Transplant Center, Houston Methodist Hospital, Houston, TX, USA
| | - Enshuo Hsu
- Center for Health Data Science and Analytics, Houston Methodist Hospital, Houston, TX, USA
| | - Ashish Saharia
- Department of Surgery, Weill Cornell Medical College, New York, NY, USA
- Department of Surgery, Houston Methodist Hospital, Houston, TX, USA
- J.C. Walter, Jr. Transplant Center, Houston Methodist Hospital, Houston, TX, USA
| | - Constance M Mobley
- Department of Surgery, Weill Cornell Medical College, New York, NY, USA
- Department of Surgery, Houston Methodist Hospital, Houston, TX, USA
- J.C. Walter, Jr. Transplant Center, Houston Methodist Hospital, Houston, TX, USA
| | - David W Victor
- J.C. Walter, Jr. Transplant Center, Houston Methodist Hospital, Houston, TX, USA
| | - Mark J Hobeika
- Department of Surgery, Weill Cornell Medical College, New York, NY, USA
- Department of Surgery, Houston Methodist Hospital, Houston, TX, USA
- J.C. Walter, Jr. Transplant Center, Houston Methodist Hospital, Houston, TX, USA
| | - Jiejian Lin
- Division of Infectious Diseases, Department of Medicine, Houston Methodist Hospital, Houston, TX, USA
- Department of Medicine, Weill Cornell Medical College, NewYork, NY, USA
| | - Kevin A Grimes
- Division of Infectious Diseases, Department of Medicine, Houston Methodist Hospital, Houston, TX, USA
- Center for Infectious Diseases, Houston Methodist Research Institute, Houston, TX, USA
- Department of Medicine, Weill Cornell Medical College, NewYork, NY, USA
| | - Elizabeth Ramos
- Division of Infectious Diseases, Department of Medicine, Houston Methodist Hospital, Houston, TX, USA
| | - Claudia Pedroza
- Center for Clinical Research and Evidence-Based Medicine, The University of Texas Health Science Center at Houston, Houston, TX, USA
| | | | - R Mark Ghobrial
- Department of Surgery, Weill Cornell Medical College, New York, NY, USA
- Department of Surgery, Houston Methodist Hospital, Houston, TX, USA
- J.C. Walter, Jr. Transplant Center, Houston Methodist Hospital, Houston, TX, USA
| | - Cesar A Arias
- Division of Infectious Diseases, Department of Medicine, Houston Methodist Hospital, Houston, TX, USA
- Center for Infectious Diseases, Houston Methodist Research Institute, Houston, TX, USA
- Department of Medicine, Weill Cornell Medical College, NewYork, NY, USA
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Morales MK, Danziger-Isakov L, Nematollahi S. A review of transplant infectious diseases and pediatric transplant infectious diseases curriculum. Curr Opin Organ Transplant 2023; 28:463-470. [PMID: 37751314 DOI: 10.1097/mot.0000000000001105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/28/2023]
Abstract
PURPOSE OF REVIEW As the volume and complexity of solid organ and hematopoietic stem cell transplantation continue to see rapid growth, the training of a specialized transplant infectious diseases physician workforce is of increasing interest and importance. This review provides an overview of the evolution of transplant infectious diseases training programs, essential elements of training, as well as future needs. RECENT FINDINGS Despite the first publication of a transplant infectious diseases curriculum in 2010, more recent surveys of infectious diseases trainees have identified gaps in didactic curriculum, donor and recipient assessment, and safe living practices. SUMMARY This review of transplant infectious diseases training summarizes growth through the decades, the current landscape of recommend training elements, suggested areas for continued development and expansion in training as well as novel methodologies to reach a modern trainee audience.
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Affiliation(s)
- Megan K Morales
- Division of Infectious Diseases and Division of Transplant Surgery, Virginia Commonwealth University, Richmond, Virginia
| | - Lara Danziger-Isakov
- Immunocompromised Host Infectious Diseases, Cincinnati Children's Hospital Medical Center, University of Cincinnati, Cincinnati, Ohio
| | - Saman Nematollahi
- Division of Infectious Diseases, University of Arizona College of Medicine, Tucson, Arizona, USA
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