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Laquian L, Efron PA. Antibiotic Use in the Surgical Intensive Care Unit. Adv Surg 2024; 58:203-221. [PMID: 39089778 DOI: 10.1016/j.yasu.2024.04.012] [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] [Indexed: 08/04/2024]
Abstract
Judicious use of antibiotics in the critically ill starts with the evaluation for suspected infection, including close consideration of the patient's history. If infection is present or strongly suspected, empiric antibiotics should be promptly initiated and selected based on the source of infection, patient factors, and local resistance patterns. If the surgeon decides source control is indicated, they must determine the optimal approach and timing. As soon as culture and sensitivity data are available, de-escalation to narrower spectrum agents is essential to decrease the risks of antibiotic toxicity and resistance. Importantly, surgeons should participate in antibiotic stewardship in their patients.
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Affiliation(s)
- Liza Laquian
- Department of Surgery, University of Florida College of Medicine, Gainesville, FL, USA
| | - Philip A Efron
- Department of Surgery, University of Florida College of Medicine, Gainesville, FL, USA.
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Elalouf A, Yaniv-Rosenfeld A, Maoz H. Immune response against bacterial infection in organ transplant recipients. Transpl Immunol 2024; 86:102102. [PMID: 39094907 DOI: 10.1016/j.trim.2024.102102] [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: 05/17/2024] [Revised: 07/30/2024] [Accepted: 07/30/2024] [Indexed: 08/04/2024]
Abstract
This comprehensive review delves into the intricate dynamics between the immune system and bacterial infections in organ transplant recipients. Its primary objective is to fill existing knowledge gaps while critically assessing the strengths and weaknesses of current research. The paper accentuates the delicate balance that must be struck between preventing graft rejection through immunosuppression and maintaining robust immunity against bacterial threats. In this context, personalized medicine emerges as a transformative concept, offering the potential to revolutionize clinical outcomes by tailoring immunosuppressive regimens and vaccination strategies to the unique profiles of transplant recipients. By emphasizing the pivotal role of continuous monitoring, the review underscores the necessity for vigilant surveillance of transplant recipients to detect bacterial infections and associated immune responses early, thereby reducing the risk of severe infections and ultimately improving patient outcomes. Furthermore, the study highlights the significance of the host microbiome in shaping immune responses, suggesting that interventions targeting the microbiome hold promise for enhancing bacterial immunity in transplant recipients, both in research and clinical practice. In terms of future research directions, the review advocates for large-scale, longitudinal studies encompassing diverse patient cohorts to provide more comprehensive insights into post-transplant immune responses. It also advocates integrating multi-omics approaches, including genomics, transcriptomics, proteomics, and microbiome data, to understand immune responses and their underlying mechanisms. In conclusion, this review significantly enriches our understanding of immune responses in transplant recipients. It paves the way for more effective and personalized approaches to managing infections in this complex setting.
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Affiliation(s)
- Amir Elalouf
- Bar-Ilan University, Department of Management, Ramat Gan 5290002, Israel.
| | | | - Hanan Maoz
- Bar-Ilan University, Department of Management, Ramat Gan 5290002, Israel
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3
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Ma S, Yin Y, Guo Y, Yao C, Xu S, Luo Q, Yin G, Wang S, Wang Q, Chen H, Wang R, Jin L, Liang G, Wang H. The plasma viral communities associate with clinical profiles in a large-scale haematological patients cohort. MICROBIOME 2024; 12:137. [PMID: 39044261 PMCID: PMC11265361 DOI: 10.1186/s40168-024-01855-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Accepted: 06/03/2024] [Indexed: 07/25/2024]
Abstract
BACKGROUND Haematological patients exhibit immune system abnormalities that make them susceptible to viral infections. Understanding the relationship between the virome in the blood plasma of haematological patients and their clinical characteristic is crucial for disease management. We aimed to explore the presence of viral pathogens and identify close associations between viral infections and various clinical features. RESULTS A total of 21 DNA viruses and 6 RNA viruses from 12 virus families were identified from 1383 patients. Patients with haematological diseases exhibited significantly higher diversity, prevalence, and co-detection rates of viral pathogens. During fever episodes, pathogen detection was notably higher, with Epstein-Barr virus (EBV) and Mucorales infections being the most probable culprits for fever symptoms in non-haematological patients. The detection rate of torque teno virus (TTV) significantly increases in haematological patients after transplantation and during primary lung infections. Additionally, TTV-positive patients demonstrate significantly higher absolute neutrophil counts, while C-reactive protein and procalcitonin levels are notably lower. Furthermore, TTV, cytomegalovirus, and parvovirus B19 (B19V) were found to be more prevalent in non-neutropenic patients, while non-viral pathogenic infections, such as Gram-negative bacteria and Mucorales, were more common in neutropenic patients. Pegivirus C (HPgV-C) infection often occurred post-transplantation, regardless of neutropenia. Additionally, some viruses such as TTV, B19V, EBV, and HPgV-C showed preferences for age and seasonal infections. CONCLUSIONS Analysis of the plasma virome revealed the susceptibility of haematological patients to plasma viral infections at specific disease stages, along with the occurrence of mixed infections with non-viral pathogens. Close associations were observed between the plasma virome and various clinical characteristics, as well as clinical detection parameters. Understanding plasma virome aids in auxiliary clinical diagnosis and treatment, enabling early prevention to reduce infection rates in patients and improve their quality of life. Video Abstract.
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Affiliation(s)
- Shuai Ma
- Department of Clinical Laboratory, Peking University People's Hospital, Beijing, 100044, China
- Institute of Medical Technology, Peking University Health Science Center, Beijing, China
| | - Yuyao Yin
- Department of Clinical Laboratory, Peking University People's Hospital, Beijing, 100044, China
| | - Yifan Guo
- Department of Clinical Laboratory, Peking University People's Hospital, Beijing, 100044, China
| | - Chaoqun Yao
- Department of Clinical Laboratory, Peking University People's Hospital, Beijing, 100044, China
- Institute of Medical Technology, Peking University Health Science Center, Beijing, China
| | - Siqi Xu
- Center for Infectious Disease Research, School of Medicine, Tsinghua University, Beijing, China
- Tsinghua-Peking Center for Life Sciences, Beijing, China
| | - Qingqing Luo
- Center for Infectious Disease Research, School of Medicine, Tsinghua University, Beijing, China
- Tsinghua-Peking Center for Life Sciences, Beijing, China
| | - Guankun Yin
- Department of Clinical Laboratory, Peking University People's Hospital, Beijing, 100044, China
| | - Shuyi Wang
- Department of Clinical Laboratory, Peking University People's Hospital, Beijing, 100044, China
- Institute of Medical Technology, Peking University Health Science Center, Beijing, China
| | - Qi Wang
- Department of Clinical Laboratory, Peking University People's Hospital, Beijing, 100044, China
| | - Hongbin Chen
- Department of Clinical Laboratory, Peking University People's Hospital, Beijing, 100044, China
| | - Ruobing Wang
- Department of Clinical Laboratory, Peking University People's Hospital, Beijing, 100044, China
| | - Longyang Jin
- Department of Clinical Laboratory, Peking University People's Hospital, Beijing, 100044, China
| | - Guanxiang Liang
- Center for Infectious Disease Research, School of Medicine, Tsinghua University, Beijing, China
- Tsinghua-Peking Center for Life Sciences, Beijing, China
| | - Hui Wang
- Department of Clinical Laboratory, Peking University People's Hospital, Beijing, 100044, China.
- Institute of Medical Technology, Peking University Health Science Center, Beijing, China.
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4
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Territo A, Belmonte M, Cocci A, Ruiz-Castañe E, Castiglione F, Mantica G, Prudhomme T, Pecoraro A, Piana A, Marco BB, Dönmez MI, Esperto F, Russo GI, Campi R, Breda A, López-Abad A. Is it safe to implant a penile prosthesis in a solid organ transplant recipient? A systematic review. Int J Impot Res 2024:10.1038/s41443-024-00939-x. [PMID: 39026089 DOI: 10.1038/s41443-024-00939-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2024] [Revised: 06/09/2024] [Accepted: 06/14/2024] [Indexed: 07/20/2024]
Abstract
Solid organ transplant recipients exhibit an elevated incidence of erectile dysfunction, attributed to comorbidities and specific factors associated with organ failure. While treatment mirrors the general population's, response rates are lower, and there is a heightened concern about implanting a penile prosthesis in immunocompromised patients due to the potential occurrence of severe complications. The aim of this study was to assess the safety of penile prostheses in this population. Among fourteen included studies, ten were case reports or series of cases, and four were non randomized case-control studies with non-transplanted patients as controls. Complications affected 34 patients (11.15%), with mechanical device failures in 18 cases (5.9%) and infections in 13 cases (4.26%). Most infections required hospitalization, antibiotic treatment, and prosthesis removal, with two cases of life-threatening Fournier's gangrene. Case-control studies revealed no differences in overall reoperation rates between transplant recipients and controls. However, pelvic organ transplant recipients undergoing three-piece prosthesis implantation showed higher complications rates related to reservoir issues. Despite limited evidence, case-control studies demonstrated a generally low/moderate risk of bias within each specific domain, although overall bias was moderate/severe. As a result, clinicians may mitigate concerns regarding penile prosthesis implantation in solid organ transplant recipients.
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Affiliation(s)
- Angelo Territo
- Department of Urology, Fundació Puigvert, Autonoma University of Barcelona, Barcelona, Spain.
| | - Mario Belmonte
- Unit of Urological Robotic Surgery and Renal Transplantation, University of Florence, Careggi Hospital, Florence, Italy
- Unit of Oncologic Minimally-Invasive Urology and Andrology, Careggi Hospital, Florence, Italy
| | - Andrea Cocci
- Unit of Oncologic Minimally-Invasive Urology and Andrology, Careggi Hospital, Florence, Italy
| | - Eduard Ruiz-Castañe
- Department of Urology, Fundació Puigvert, Autonoma University of Barcelona, Barcelona, Spain
| | - Fabio Castiglione
- King's College London, London, UK
- Department of Urology, King's College London Hospital NHS Foundation Trust, London, UK
- Department of Urology, IRCCS San Raffaele Scientific Institute, Milan, Italy
- Vita-Salute San Raffaele University, Milan, Italy
| | - Guglielmo Mantica
- Department of Surgical and Diagnostic Integrated Sciences (DISC), University of Genova, 16131, Genova, Italy
| | - Thomas Prudhomme
- Department of Urology, Kidney Transplantation and Andrology, Toulouse Rangueil University Hospital, Toulouse, France
| | - Alessio Pecoraro
- Unit of Urological Robotic Surgery and Renal Transplantation, University of Florence, Careggi Hospital, Florence, Italy
| | - Alberto Piana
- Department of Oncology, Division of Urology, University of Turin, Turin, Italy
| | - Beatriz Bañuelos Marco
- Department of Urology, Kidney Transplantation and Reconstructive Urology. Hospital Universitario Clinico San Carlos, Madrid, Spain
| | - Muhammet Irfan Dönmez
- Department of Urology, Istanbul University Istanbul Faculty of Medicine, Istanbul, Turkey
| | | | | | - Riccardo Campi
- Unit of Urological Robotic Surgery and Renal Transplantation, University of Florence, Careggi Hospital, Florence, Italy
| | - Alberto Breda
- Department of Urology, Fundació Puigvert, Autonoma University of Barcelona, Barcelona, Spain
| | - Alicia López-Abad
- Department of Urology, Virgen de la Arrixaca University Hospital, Murcia, Spain
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Irshad Z, Jenkins A, Lim HS, Maidment ID. Antifungal prophylaxis against invasive Candida and Aspergillus infection in adult heart transplant recipients: protocol for a systematic review and meta-analysis. Eur J Hosp Pharm 2024:ejhpharm-2024-004266. [PMID: 38960452 DOI: 10.1136/ejhpharm-2024-004266] [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: 06/06/2024] [Accepted: 06/18/2024] [Indexed: 07/05/2024] Open
Abstract
INTRODUCTION Invasive fungal infections (IFI) can contribute to increased mortality and morbidity rates after heart transplant in adults. The most common causes are Aspergillus and Candida species. There is uncertainty on how effective antifungal prophylaxis is against Candida spp infections and limited guidance on the prevention of Aspergillus spp infections. This systematic review and meta-analysis will assess the literature to see if antifungal prophylaxis reduces the incidence of IFI after heart transplant in adults. METHODS AND ANALYSIS This systematic review protocol follows the Preferred Reporting Items for Systematic reviews and Meta Analysis guidelines. A systematic search of the Cochrane Library, Web of Science, Scopus, Embase, MEDLINE, and Proquest databases will be undertaken. Reference lists of retrieved publications and conference abstracts will also be searched. Title, abstract and full-text screening will be undertaken by two reviewers. Discrepancies will be resolved by a third reviewer. Studies with paediatric patients, multi-organ transplants, or patients with a second heart transplant will be excluded, along with those who do not have clear definitions and diagnostic criteria for IFI. Risk of bias will be assessed using the Cochrane Risk of Bias 2 tool and the Risk of Bias in Non-randomised Studies of Interventions tool. A meta-analysis will be carried out, but if studies are not deemed to be sufficiently similar, only a narrative synthesis will be undertaken. ETHICS AND DISSEMINATION Ethical approval is not required for this systematic review as primary data will not be collected. The results of the review will be disseminated through publication in an academic journal and scientific conferences. PROSPERO REGISTRATION NUMBER CRD42024516588.
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Affiliation(s)
- Zahra Irshad
- Pharmacy, University Hospitals Birmingham NHS Foundation Trust, Birmingham, UK
| | - Abi Jenkins
- Pharmacy, University Hospitals Birmingham NHS Foundation Trust, Birmingham, UK
| | - Hoong Sern Lim
- Cardiology, University Hospitals Birmingham NHS Foundation Trust, Birmingham, UK
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Phornkittikorn P, Kantachuvesiri S, Sobhonslidsuk A, Yingchoncharoen T, Kiertiburanakul S, Bruminhent J. SARS-CoV-2-Specific Antibodies, B Cell and T Cell Immune Responses after ChAdOx1 nCoV-19 Vaccination in Solid Organ Transplant Recipients. Vaccines (Basel) 2024; 12:541. [PMID: 38793792 PMCID: PMC11125913 DOI: 10.3390/vaccines12050541] [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: 03/12/2024] [Revised: 04/14/2024] [Accepted: 04/18/2024] [Indexed: 05/26/2024] Open
Abstract
BACKGROUND Immunization against SARS-CoV-2 is essential for vulnerable solid organ transplant (SOT) recipients who are at risk of infection. However, there are concerns about suboptimal immunogenicity, especially in humoral immunity (HMI), and limited exploration of cell-mediated immune (CMI) responses. The primary objective of this study was to assess the immunogenicity of ChAdOx1 nCoV-19 vaccination in SOT recipients. The secondary endpoint was to evaluate factors that affect immunogenicity and adverse events (AEs) following immunization in SOT recipients. METHODS All adult SOT recipients who received the two-dose ChAdOx1 nCoV-19 vaccine at a 12-week interval underwent measurements of HMI by evaluating anti-receptor-binding domain (RBD) IgG levels and CMI by investigating SARS-CoV-2-specific T cell and B cell responses before and after complete vaccination, around 2-4 weeks post-vaccination, and compared to controls. AEs were monitored in all participants. RESULTS The study included 63 SOT recipients: 44 kidney recipients, 16 liver recipients, and 3 heart transplant recipients, along with 11 immunocompetent controls. Among SOT recipients, 36% were female, and the median (IQR) age was 52 (42-61). The median (IQR) time since transplant was 55 (28-123) months. After the second dose, the median (IQR) anti-RBD antibody levels were significantly lower in SOT recipients compared to those in the control group (8.3 [0.4-46.0] vs. 272.2 [178.1-551.6] BAU/mL, p < 0.01). This resulted in a seroconversion rate (anti-RBD antibody > 7.1 BAU/mL) of 51% among SOT recipients and 100% among controls (p = 0.008). Receiving the vaccine beyond one year post-transplant significantly affected seroconversion (OR 9.04, 95% CI 1.04-78.56, p = 0.046), and low-dose mycophenolic acid marginally affected seroconversion (OR 2.67, 95% CI 0.89-7.96, p = 0.079). RBD-specific B cell responses were also significantly lower compared to those in the control group (0 [0-4] vs. 10 [6-22] SFUs/106 PBMCs, p = 0.001). Similarly, S1- and SNMO-specific T cell responses were significantly lower compared to those in the control group (48 [16-128] vs. 216 [132-356] SFUs/106 PBMCs, p = 0.004 and 20 [4-48] vs. 92 [72-320] SFUs/106 PBMCs, p = 0.004). AEs were generally mild and spontaneously resolved. CONCLUSIONS SOT recipients who received the full two-dose ChAdOx1 nCoV-19 vaccine demonstrated significantly diminished HMI and CMI responses compared to immunocompetent individuals. Consideration should be given to administering additional vaccine doses or optimizing immunosuppressant regimens during vaccination (Thai Clinical Trial Registry: TCTR20210523002).
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Affiliation(s)
- Pattaraphorn Phornkittikorn
- Department of Medicine, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok 10400, Thailand; (P.P.); (S.K.); (A.S.); (T.Y.); (S.K.)
| | - Surasak Kantachuvesiri
- Department of Medicine, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok 10400, Thailand; (P.P.); (S.K.); (A.S.); (T.Y.); (S.K.)
- Ramathibodi Excellence Center for Organ Transplantation, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok 10400, Thailand
| | - Abhasnee Sobhonslidsuk
- Department of Medicine, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok 10400, Thailand; (P.P.); (S.K.); (A.S.); (T.Y.); (S.K.)
- Ramathibodi Excellence Center for Organ Transplantation, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok 10400, Thailand
| | - Teerapat Yingchoncharoen
- Department of Medicine, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok 10400, Thailand; (P.P.); (S.K.); (A.S.); (T.Y.); (S.K.)
- Ramathibodi Excellence Center for Organ Transplantation, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok 10400, Thailand
| | - Sasisopin Kiertiburanakul
- Department of Medicine, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok 10400, Thailand; (P.P.); (S.K.); (A.S.); (T.Y.); (S.K.)
| | - Jackrapong Bruminhent
- Department of Medicine, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok 10400, Thailand; (P.P.); (S.K.); (A.S.); (T.Y.); (S.K.)
- Ramathibodi Excellence Center for Organ Transplantation, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok 10400, Thailand
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7
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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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Stylemans D, Vandecruys M, Leunis S, Engelborghs S, Gargioli D, Monbaliu D, Cornelissen V, Van Craenenbroeck AH, De Smet S. Physical Exercise After Solid Organ Transplantation: A Cautionary Tale. Transpl Int 2024; 37:12448. [PMID: 38414660 PMCID: PMC10898592 DOI: 10.3389/ti.2024.12448] [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: 11/20/2023] [Accepted: 02/02/2024] [Indexed: 02/29/2024]
Abstract
An increasing body of randomized controlled trials suggests the safety of engaging in moderate to vigorous intensity exercise training following solid organ transplantation. Fueled by emerging sport events designed for transplant recipients and the ever-growing body of research highlighting the diverse health benefits of physical activity, transplant recipients are now increasingly participating in strenuous and occasionally competitive physical endeavors that largely surpass those evaluated in controlled research settings. This viewpoint article adopts a cautionary stance to counterbalance the prevalent one-sided optimistic perspective regarding posttransplant physical activity. While discussing methodological limitations, we explore plausible adverse impacts on the cardiovascular, immunological, and musculoskeletal systems. We also examine the physiological consequences of exercising in the heat, at high altitude, and in areas with high air pollution. Risks associated with employing performance-enhancing strategies and the conceivable psychological implications regarding physical activity as a tribute to the 'gift of life' are discussed. With a deliberate focus on the potential adverse outcomes of strenuous posttransplant physical activity, this viewpoint aims to restore a balanced dialogue on our comprehension of both beneficial and potentially detrimental outcomes of physical activity that ultimately underscores the imperative of well-informed decision-making and tailored exercise regimens in the realm of posttransplant care.
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Affiliation(s)
- Dimitri Stylemans
- Department of Respiratory Diseases, Pulmonary Rehabilitation, University Hospitals Leuven, Leuven, Belgium
| | - Marieke Vandecruys
- Nephrology and Renal Transplantation Research Group, Department of Microbiology, Immunology and Transplantation, KU Leuven, Leuven, Belgium
| | - Sofie Leunis
- Laboratory of Abdominal Transplantation, Department of Microbiology, Immunology and Transplantation, KU Leuven, Leuven, Belgium
| | - Sofie Engelborghs
- Exercise Physiology Research Group, Department of Movement Sciences, KU Leuven, Leuven, Belgium
| | - Davide Gargioli
- Exercise Physiology Research Group, Department of Movement Sciences, KU Leuven, Leuven, Belgium
| | - Diethard Monbaliu
- Laboratory of Abdominal Transplantation, Department of Microbiology, Immunology and Transplantation, KU Leuven, Leuven, Belgium
- Department of Abdominal Transplant Surgery, University Hospitals Leuven, Leuven, Belgium
- Transplantoux Foundation, Leuven, Belgium
| | - Véronique Cornelissen
- Research Group for Rehabilitation in Internal Disorders, Department of Rehabilitation Sciences, KU Leuven, Leuven, Belgium
| | - Amaryllis H. Van Craenenbroeck
- Nephrology and Renal Transplantation Research Group, Department of Microbiology, Immunology and Transplantation, KU Leuven, Leuven, Belgium
- Department of Nephrology and Kidney Transplantation, University Hospitals Leuven, Leuven, Belgium
| | - Stefan De Smet
- Exercise Physiology Research Group, Department of Movement Sciences, KU Leuven, Leuven, Belgium
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Alsanea MS, Al-Qahtani AA, Almaghrabi RS, AlAbdulkareem MA, Alahideb BM, Obeid D, Alsuwairi FA, Alhamlan FS. Diagnosis of Human Cytomegalovirus Drug Resistance Mutations in Solid Organ Transplant Recipients-A Review. Diagnostics (Basel) 2024; 14:203. [PMID: 38248079 PMCID: PMC10814084 DOI: 10.3390/diagnostics14020203] [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: 05/02/2023] [Revised: 06/11/2023] [Accepted: 06/21/2023] [Indexed: 01/23/2024] Open
Abstract
Human cytomegalovirus (HCMV) infection may be asymptomatic in healthy individuals but can cause severe complications in immunocompromised patients, including transplant recipients. Breakthrough and drug-resistant HCMV infections in such patients are major concerns. Clinicians are first challenged to accurately diagnose HCMV infection and then to identify the most effective antiviral drug and determine when to initiate therapy, alter drug dosage, or switch medication. This review critically examines HCMV diagnostics approaches, particularly for immunocompromised patients, and the development of genotypic techniques to rapidly diagnose drug resistance mutations. The current standard method to identify prevalent and well-known resistance mutations involves polymerase chain reaction amplification of UL97, UL54, and UL56 gene regions, followed by Sanger sequencing. This method can confirm clinical suspicion of drug resistance as well as determine the level of drug resistance and range of cross-resistance with other drugs. Despite the effectiveness of this approach, there remains an urgent need for more rapid and point-of-care HCMV diagnosis, allowing for timely lifesaving intervention.
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Affiliation(s)
- Madain S. Alsanea
- Department of Infection and Immunity, King Faisal Specialist Hospital and Research Center, Riyadh 11564, Saudi Arabia; (M.S.A.); (A.A.A.-Q.); (M.A.A.); (B.M.A.); (D.O.); (F.A.A.)
| | - Ahmed A. Al-Qahtani
- Department of Infection and Immunity, King Faisal Specialist Hospital and Research Center, Riyadh 11564, Saudi Arabia; (M.S.A.); (A.A.A.-Q.); (M.A.A.); (B.M.A.); (D.O.); (F.A.A.)
- College of Medicine, Alfaisal University, Riyadh 11533, Saudi Arabia
| | - Reem S. Almaghrabi
- Organ Transplant Center of Excellence, King Faisal Specialist Hospital and Research Center, Riyadh 11564, Saudi Arabia;
| | - Maha A. AlAbdulkareem
- Department of Infection and Immunity, King Faisal Specialist Hospital and Research Center, Riyadh 11564, Saudi Arabia; (M.S.A.); (A.A.A.-Q.); (M.A.A.); (B.M.A.); (D.O.); (F.A.A.)
| | - Basma M. Alahideb
- Department of Infection and Immunity, King Faisal Specialist Hospital and Research Center, Riyadh 11564, Saudi Arabia; (M.S.A.); (A.A.A.-Q.); (M.A.A.); (B.M.A.); (D.O.); (F.A.A.)
| | - Dalia Obeid
- Department of Infection and Immunity, King Faisal Specialist Hospital and Research Center, Riyadh 11564, Saudi Arabia; (M.S.A.); (A.A.A.-Q.); (M.A.A.); (B.M.A.); (D.O.); (F.A.A.)
- Organ Transplant Center of Excellence, King Faisal Specialist Hospital and Research Center, Riyadh 11564, Saudi Arabia;
| | - Feda A. Alsuwairi
- Department of Infection and Immunity, King Faisal Specialist Hospital and Research Center, Riyadh 11564, Saudi Arabia; (M.S.A.); (A.A.A.-Q.); (M.A.A.); (B.M.A.); (D.O.); (F.A.A.)
| | - Fatimah S. Alhamlan
- Department of Infection and Immunity, King Faisal Specialist Hospital and Research Center, Riyadh 11564, Saudi Arabia; (M.S.A.); (A.A.A.-Q.); (M.A.A.); (B.M.A.); (D.O.); (F.A.A.)
- College of Medicine, Alfaisal University, Riyadh 11533, Saudi Arabia
- Department of Pathology and Laboratory Medicine, King Faisal Specialist Hospital and Research Center, Riyadh 11564, Saudi Arabia
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10
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Burzio C, Balzani E, Corcione S, Montrucchio G, Trompeo AC, Brazzi L. Pneumocystis jirovecii Pneumonia after Heart Transplantation: Two Case Reports and a Review of the Literature. Pathogens 2023; 12:1265. [PMID: 37887781 PMCID: PMC10610317 DOI: 10.3390/pathogens12101265] [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: 09/16/2023] [Revised: 10/17/2023] [Accepted: 10/19/2023] [Indexed: 10/28/2023] Open
Abstract
Post-transplant Pneumocystis jirovecii pneumonia (PcP) is an uncommon but increasingly reported disease among solid organ transplantation (SOT) recipients, associated with significant morbidity and mortality. Although the introduction of PcP prophylaxis has reduced its overall incidence, its prevalence continues to be high, especially during the second year after transplant, the period following prophylaxis discontinuation. We recently described two cases of PcP occurring more than one year after heart transplantation (HT) in patients who were no longer receiving PcP prophylaxis according to the local protocol. In both cases, the disease was diagnosed following the diagnosis of a viral illness, resulting in a significantly increased risk for PcP. While current heart transplantation guidelines recommend Pneumocystis jirovecii prophylaxis for up to 6-12 months after transplantation, after that period they only suggest an extended prophylaxis regimen in high-risk patients. Recent studies have identified several new risk factors that may be linked to an increased risk of PcP infection, including medication regimens and patient characteristics. Similarly, the indication for PcP prophylaxis in non-HIV patients has been expanded in relation to the introduction of new medications and therapeutic regimens for immune-mediated diseases. In our experience, the first patient was successfully treated with non-invasive ventilation, while the second required tracheal intubation, invasive ventilation, and extracorporeal CO2 removal due to severe respiratory failure. The aim of this double case report is to review the current timing of PcP prophylaxis after HT, the specific potential risk factors for PcP after HT, and the determinants of a prompt diagnosis and therapeutic approach in critically ill patients. We will also present a possible proposal for future investigations on indications for long-term prophylaxis.
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Affiliation(s)
- Carlo Burzio
- Department of Anesthesia, Intensive Care and Emergency, Città della Salute e della Scienza di Torino Hospital, 10126 Torino, Italy; (C.B.); (G.M.); (A.C.T.); (L.B.)
| | - Eleonora Balzani
- Department of Surgical Science, University of Turin, 10124 Torino, Italy
| | - Silvia Corcione
- Department of Medical Sciences, Infectious Diseases, University of Turin, 10124 Turin, Italy;
- School of Medicine, Tufts University, Boston, MA 02111, USA
| | - Giorgia Montrucchio
- Department of Anesthesia, Intensive Care and Emergency, Città della Salute e della Scienza di Torino Hospital, 10126 Torino, Italy; (C.B.); (G.M.); (A.C.T.); (L.B.)
- Department of Surgical Science, University of Turin, 10124 Torino, Italy
| | - Anna Chiara Trompeo
- Department of Anesthesia, Intensive Care and Emergency, Città della Salute e della Scienza di Torino Hospital, 10126 Torino, Italy; (C.B.); (G.M.); (A.C.T.); (L.B.)
| | - Luca Brazzi
- Department of Anesthesia, Intensive Care and Emergency, Città della Salute e della Scienza di Torino Hospital, 10126 Torino, Italy; (C.B.); (G.M.); (A.C.T.); (L.B.)
- Department of Surgical Science, University of Turin, 10124 Torino, Italy
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11
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Velagala VR, Velagala NR, Singh A, Kumar T, Thakre S, Lamture Y. Immunological Nuances and Complications of Pediatric Organ Transplant: A Narrative Review. Cureus 2023; 15:e46309. [PMID: 37916238 PMCID: PMC10616683 DOI: 10.7759/cureus.46309] [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] [Received: 08/21/2023] [Accepted: 10/01/2023] [Indexed: 11/03/2023] Open
Abstract
Organ transplantation is considered an exaggerated immune state in which the body reacts in an elaborate cascade of reactions against the lifesaving graft transplanted. Unrepairable organ damage is the main indication for a pediatric patient to undergo a transplant. The host and the donor must fulfill the criteria for a successful transplant to have as few side effects as possible. There has been much-needed research in the domain of surgery of organ transplantation, thereby extending into the pediatric age group. This article elaborates on the post-transplant management, the immuno-biochemistry aspect, and its post-surgery treatment. The post-surgery period requires great emphasis as morbidity and mortality are highest. There is much to understand about managing transplant patients to avoid complications such as infections, hypertension, or side effects of immunosuppressive drugs. The treating clinician faces the challenges of managing the dose and frequency of immuno-suppressive medicines to prevent complications in the patients. If the dose is inadequate, there are chances of graft rejection. If the immuno-suppression is prolonged, there may be chances of infections in the patient. This article aims to summarize the mechanism of graft rejection and put forth the need for further research about creating a universal protocol for managing a patient's immune system post-transplant. The authors hope this protocol will help the clinician better understand the patient's current state and help in appropriately using immuno-suppressive drugs. It calls upon the need for a reliable and easily repeatable battery of investigations that will help solve this dilemma.
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Affiliation(s)
- Vivek R Velagala
- Medicine, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education and Research, Wardha, IND
| | - Namrata R Velagala
- Medicine, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education and Research, Wardha, IND
| | - Arihant Singh
- Medicine, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education and Research, Wardha, IND
| | - Tanishq Kumar
- Medicine, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education and Research, Wardha, IND
| | - Swedaj Thakre
- Medicine, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education and Research, Wardha, IND
| | - Yashwant Lamture
- Surgery, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education and Research, Wardha, IND
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12
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Massart N, Dupin C, Legris E, Legay F, Cady A, Fillatre P, Reizine F. Prevention of ICU-acquired infection with decontamination regimen in immunocompromised patients: a pre/post observational study. Eur J Clin Microbiol Infect Dis 2023; 42:1163-1172. [PMID: 37597052 DOI: 10.1007/s10096-023-04650-5] [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: 05/22/2023] [Accepted: 08/07/2023] [Indexed: 08/21/2023]
Abstract
PURPOSE Although the proportion of immunocompromised patients admitted to the ICU is increasing, data regarding specific management, including acquired infection (ICU-AI) prophylaxis, in this setting are lacking. We aim to investigate the effect of multiple-site decontamination regimens (MSD) in immunocompromised patients. METHODS We conducted a prospective pre-/post-observational study in 2 ICUs in Bretagne, western France. Adults who required mechanical ventilation for 24 h or more were eligible. During the study period, MSD was implemented in participating ICUs in addition to standard care. It consists of the administration of topical antibiotics (gentamicin, colistin sulfate, and amphotericin B), four times daily in the oropharynx and the gastric tube, 4% chlorhexidine bodywash once daily, and a 5-day nasal mupirocin course. RESULTS Overall, 295 immunocompromised patients were available for analysis (151 in the post-implementation group vs 143 in the pre-implementation group). Solid organ cancer was present in 77/295 patients while immunomodulatory treatments were noticed in 135/295. They were 35 ICU-AI in 29/143 patients in the standard-care group as compared with 10 ICU-AI in 9/151 patients in the post-implementation group (p < 0.001). In a multivariable Poisson regression model, MSD was independently associated with a decreased incidence of ICU-AI (incidence rate ratio = 0.39; 95%CI [0.20-0.87] p = 0.008). There were 35/143 deaths in the standard-care group as compared with 22/151 in the post-implementation group (p = 0.046), this difference remained in a multivariable Cox model (HR = 0.58; 95CI [0.34-0.95] p = 0.048). CONCLUSION In conclusion, MSD appeared to be associated with improved outcomes in critically ill immunocompromised patients.
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Affiliation(s)
- Nicolas Massart
- Service de Réanimation, CH de St BRIEUC, 10, Rue Marcel Proust, 22000, Saint-Brieuc, France.
| | - Clarisse Dupin
- Service de Microbiologie, CH de St BRIEUC, 10, Rue Marcel Proust, 22000, Saint-Brieuc, France
| | - Eleonore Legris
- Service de Pharmacie, CH de St BRIEUC, 10, Rue Marcel Proust, 22000, Saint-Brieuc, France
| | - François Legay
- Service de Réanimation, CH de St BRIEUC, 10, Rue Marcel Proust, 22000, Saint-Brieuc, France
| | - Anne Cady
- Service de Microbiologie, CH de Vannes, 20 bvd général maurice guillaudot, 56000, Vannes, France
| | - Pierre Fillatre
- Service de Réanimation, CH de St BRIEUC, 10, Rue Marcel Proust, 22000, Saint-Brieuc, France
| | - Florian Reizine
- Service de Réanimation, CH de Vannes, 20, Bd Maurice Guillaudot, 56000, Vannes, France
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13
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Moghadamnia M, Eshaghi H, Alimadadi H, Dashti-Khavidaki S. A quick algorithmic review on management of viral infectious diseases in pediatric solid organ transplant recipients. Front Pediatr 2023; 11:1252495. [PMID: 37732007 PMCID: PMC10507262 DOI: 10.3389/fped.2023.1252495] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Accepted: 08/21/2023] [Indexed: 09/22/2023] Open
Abstract
Pediatric solid organ transplant is a life-saving procedure for children with end-stage organ failure. Viral infections are a common complication following pediatric solid organ transplantation (SOT), which can lead to increased morbidity and mortality. Pediatric solid organ transplant recipients are at an increased risk of viral infections due to their immunosuppressed state. The most commonly encountered viruses include cytomegalovirus (CMV), Epstein-Barr virus (EBV), herpes simplex virus (HSV), varicella-zoster virus (VZV), adenoviruses, and BK polyomavirus. Prevention strategies include vaccination prior to transplantation, post-transplant prophylaxis with antiviral agents, and preemptive therapy. Treatment options vary depending on the virus and may include antiviral therapy and sometimes immunosuppression modification. This review provides a Quick Algorithmic overview of prevention and treatment strategies for viral infectious diseases in pediatric solid organ transplant recipient.
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Affiliation(s)
- Marjan Moghadamnia
- Department of Pharmacotherapy, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Hamid Eshaghi
- Department of Infectious Diseases, Pediatrics’ Center of Excellence, Children’s Medical Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Hosein Alimadadi
- Department of Gastroenterology, Children’s Medical Center, Tehran University of Medical Science, Tehran, Iran
| | - Simin Dashti-Khavidaki
- Department of Pharmacotherapy, Liver Transplantation Research Center, Tehran University of Medical Sciences, Tehran, Iran
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14
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Liava C, Ouranos K, Chatziioannou A, Kamenidou I, Kofinas A, Vasileiadou S, Antoniadis N, Katsanos G, Akriviadis E, Sinakos E. Impact and management of COVID-19 in liver transplant candidates and recipients. Ann Gastroenterol 2023; 36:477-489. [PMID: 37664224 PMCID: PMC10433260 DOI: 10.20524/aog.2023.0815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Accepted: 05/07/2023] [Indexed: 09/05/2023] Open
Abstract
The COVID-19 outbreak has had severe consequences for global public health, medical communities, and the socioeconomic status of a considerable number of countries. The emergence of COVID-19 has also significantly impacted the world of liver transplantation (LT). Studies from transplantation centers around the world have shown that LTs during the COVID-19 pandemic have been restricted because of the high risk of serious COVID-19 infection in this population. According to the Centers for Disease Control and Prevention, patients with liver disease are considered at higher risk for severe COVID-19 infection. In March 2020, the American Association for the Study of Liver Diseases recommended that LT should be limited to emergency cases. The COVID-19 treatment guidelines published by the National Institutes of Health are being constantly updated according to new epidemiology trends and treatment regimens. Immunocompromised patients have a higher risk of developing severe disease or death from COVID-19 compared with the general population. In this review, we summarize the available evidence regarding treatment guidelines and considerations for the evaluation and management of LT candidates and recipients in the era of COVID-19. In addition, we present data regarding COVID-19 among LT patients in our local transplantation center.
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Affiliation(s)
- Christina Liava
- Fourth Department of Internal Medicine, Hippokratio Hospital, Aristotle University of Thessaloniki (Christina Liava, Konstantinos Ouranos, Anthi Chatziioannou, Evangelos Akriviadis, Emmanouil Sinakos)
| | - Konstantinos Ouranos
- Fourth Department of Internal Medicine, Hippokratio Hospital, Aristotle University of Thessaloniki (Christina Liava, Konstantinos Ouranos, Anthi Chatziioannou, Evangelos Akriviadis, Emmanouil Sinakos)
| | - Anthi Chatziioannou
- Fourth Department of Internal Medicine, Hippokratio Hospital, Aristotle University of Thessaloniki (Christina Liava, Konstantinos Ouranos, Anthi Chatziioannou, Evangelos Akriviadis, Emmanouil Sinakos)
| | - Irene Kamenidou
- Department of Management Science and Technology, International Hellenic University, Kavala Campus (Irene Kamenidou)
| | - Athanasios Kofinas
- Department of Transplantation Surgery Clinic, Hippokratio Hospital, Aristotle University of Thessaloniki, (Athanasios Kofinas, Stella Vasileiadou, Nikolaos Antoniadis, Georgios Katsanos), Greece
| | - Stella Vasileiadou
- Department of Transplantation Surgery Clinic, Hippokratio Hospital, Aristotle University of Thessaloniki, (Athanasios Kofinas, Stella Vasileiadou, Nikolaos Antoniadis, Georgios Katsanos), Greece
| | - Nikolaos Antoniadis
- Department of Transplantation Surgery Clinic, Hippokratio Hospital, Aristotle University of Thessaloniki, (Athanasios Kofinas, Stella Vasileiadou, Nikolaos Antoniadis, Georgios Katsanos), Greece
| | - Georgios Katsanos
- Department of Transplantation Surgery Clinic, Hippokratio Hospital, Aristotle University of Thessaloniki, (Athanasios Kofinas, Stella Vasileiadou, Nikolaos Antoniadis, Georgios Katsanos), Greece
| | - Evangelos Akriviadis
- Fourth Department of Internal Medicine, Hippokratio Hospital, Aristotle University of Thessaloniki (Christina Liava, Konstantinos Ouranos, Anthi Chatziioannou, Evangelos Akriviadis, Emmanouil Sinakos)
| | - Emmanouil Sinakos
- Fourth Department of Internal Medicine, Hippokratio Hospital, Aristotle University of Thessaloniki (Christina Liava, Konstantinos Ouranos, Anthi Chatziioannou, Evangelos Akriviadis, Emmanouil Sinakos)
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15
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Tammisetti VS, Prasad SR, Dasyam N, Menias CO, Katabathina V. Immunosuppressive Therapy in Solid Organ Transplantation: Primer for Radiologists and Potential Complications. Radiol Clin North Am 2023; 61:913-932. [PMID: 37495297 DOI: 10.1016/j.rcl.2023.04.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/28/2023]
Abstract
The availability of effective immunosuppressive medication is primarily responsible for the dramatic improvement in long-term graft survival rates after solid organ transplantation. The commonly used drugs include monoclonal/polyclonal antibodies, corticosteroids, calcineurin inhibitors (cyclosporine and tacrolimus), antimetabolites, mammalian target of rapamycin, and many novel drugs. Prolonged immunosuppression is accompanied by several well-described potentially life-threatening complications. In addition to drug-related side effects, recipients of solid organs are unavoidably at a higher risk for infections and malignancies. Select infections and malignancies in solid organ transplant patients have distinctive imaging findings, and radiologists play a crucial role in the timely diagnosis and management of these conditions.
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Affiliation(s)
| | - Srinivasa R Prasad
- Department of Radiology, University of Texas M. D. Anderson Cancer Center
| | - Navya Dasyam
- Department of Radiology, University of Pittsburgh Medical Center
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16
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Congedi S, Navalesi P, Boscolo A. Multidrug-resistant organisms in lung transplant: a narrative review. Curr Opin Organ Transplant 2023; 28:174-179. [PMID: 36995685 PMCID: PMC10155683 DOI: 10.1097/mot.0000000000001066] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/31/2023]
Abstract
PURPOSE OF REVIEW The purpose of this narrative review is presenting the current knowledge of multidrug-resistant (MDR) pathogens in lung transplant recipients, considering both Gram-positive and Gram-negative bacteria. RECENT FINDINGS Overall prevalence of Gram-negative pathogens has increased remarkably (4.33/1000 recipient-days) in solid organ transplant recipients, while the prevalence of Gram-positive bacteria seems to be decreasing (0.20 cases/100 transplant-years). In lung transplant, the prevalence of postoperative infections due to MDR-GN bacteria has been assessed between 31 and 57%, and the incidence of carbapenem-resistant Enterobacterales is between 0.4 and 20%, with a related mortality up to 70%. MDR Pseudomonas aeruginosa is common in lung transplant recipients with cystic fibrosis and may contribute to bronchiolitis obliterans syndrome. The prevalence of MDR Gram-positive bacteria is around 30% (predominantly Methicillin-resistant Staphylococcus aureus and Coagulase-negative staphylococcus). SUMMARY Survival after lung transplant, although lower than in other SOT, is increasing and currently at 60% at 5 years. This review highlights the potential clinical and social burden of postoperative infections in lung transplant recipients, and confirmed that a PI due to MDR bacteria negatively affects survival. A prompt diagnosis, prevention and management of these MDR pathogens should remain the cornerstone for higher goals of care.
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Affiliation(s)
| | - Paolo Navalesi
- Department of Medicine (DIMED), University of Padua
- Institute of Anaesthesia and Intensive Care, Padua University Hospital, Padua, Italy
| | - Annalisa Boscolo
- Department of Medicine (DIMED), University of Padua
- Institute of Anaesthesia and Intensive Care, Padua University Hospital, Padua, Italy
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17
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Elalouf A. Infections after organ transplantation and immune response. Transpl Immunol 2023; 77:101798. [PMID: 36731780 DOI: 10.1016/j.trim.2023.101798] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Revised: 01/08/2023] [Accepted: 01/26/2023] [Indexed: 01/31/2023]
Abstract
Organ transplantation has provided another chance of survival for end-stage organ failure patients. Yet, transplant rejection is still a main challenging factor. Immunosuppressive drugs have been used to avoid rejection and suppress the immune response against allografts. Thus, immunosuppressants increase the risk of infection in immunocompromised organ transplant recipients. The infection risk reflects the relationship between the nature and severity of immunosuppression and infectious diseases. Furthermore, immunosuppressants show an immunological impact on the genetics of innate and adaptive immune responses. This effect usually reactivates the post-transplant infection in the donor and recipient tissues since T-cell activation has a substantial role in allograft rejection. Meanwhile, different infections have been found to activate the T-cells into CD4+ helper T-cell subset and CD8+ cytotoxic T-lymphocyte that affect the infection and the allograft. Therefore, the best management and preventive strategies of immunosuppression, antimicrobial prophylaxis, and intensive medical care are required for successful organ transplantation. This review addresses the activation of immune responses against different infections in immunocompromised individuals after organ transplantation.
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Affiliation(s)
- Amir Elalouf
- Bar-Ilan University, Department of Management, Ramat Gan 5290002, Israel.
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18
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Relationship of multidrug-resistant bacterial colonization and immune status of patients in the ICU. Intensive Care Med 2023; 49:479-480. [PMID: 36853335 DOI: 10.1007/s00134-023-07003-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/10/2023] [Indexed: 03/01/2023]
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19
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Burzio C, Balzani E, Montrucchio G, Trompeo AC, Corcione S, Brazzi L. Trichoderma spp.-Related Pneumonia: A Case Report in Heart-Lung Transplantation Recipient and a Systematic Literature Review. J Fungi (Basel) 2023; 9:195. [PMID: 36836310 PMCID: PMC9961996 DOI: 10.3390/jof9020195] [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] [Received: 01/10/2023] [Revised: 01/26/2023] [Accepted: 01/31/2023] [Indexed: 02/05/2023] Open
Abstract
Opportunistic and hospital-acquired infections are common among recipients of solid organ transplantation. New pathogens are increasingly reported in the intensive care unit (ICU) population. We report a case of a patient who developed Trichoderma spp.-related pneumonia (TRP) after heart-lung transplantation. In the absence of antifungal susceptibility testing, TRP was confirmed by histological examination, and empirical therapy with voriconazole and caspofungin was swiftly initiated. Complete resolution of pneumonia was obtained after prolonged combination therapy. Given the lack of guidelines, we conducted a systematic review to elucidate the diagnostic and therapeutic strategies to apply during Trichoderma infection. After deduplication and selection of full texts, we found 42 articles eligible for the systematic review. Pneumonia seems to be the most common clinical manifestation (31.8%). The most used antifungal therapy was amphotericin B, while combination therapy was also reported (27.3%). All the patients were immunocompromised except for one case. Despite the rarity of Trichoderma spp. infection, the increase in invasive fungal infections is of growing importance in ICU, considering their impact on mortality and the emergence of antifungal resistance. In the absence of prospective and multicenter studies, a review can provide useful insight regarding the epidemiology, clinical manifestations, and management of these unexpected challenges.
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Affiliation(s)
- Carlo Burzio
- Department of Anesthesia, Intensive Care and Emergency, Città della Salute e della Scienza di Torino Hospital, 10126 Torino, Italy
| | - Eleonora Balzani
- Department of Surgical Science, University of Turin, 10124 Torino, Italy
| | - Giorgia Montrucchio
- Department of Anesthesia, Intensive Care and Emergency, Città della Salute e della Scienza di Torino Hospital, 10126 Torino, Italy
- Department of Surgical Science, University of Turin, 10124 Torino, Italy
| | - Anna Chiara Trompeo
- Department of Anesthesia, Intensive Care and Emergency, Città della Salute e della Scienza di Torino Hospital, 10126 Torino, Italy
| | - Silvia Corcione
- Department of Medical Sciences, Infectious Diseases, University of Turin, 10124 Turin, Italy
- School of Medicine, Tufts University, Boston, MA 02111, USA
| | - Luca Brazzi
- Department of Anesthesia, Intensive Care and Emergency, Città della Salute e della Scienza di Torino Hospital, 10126 Torino, Italy
- Department of Surgical Science, University of Turin, 10124 Torino, Italy
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20
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吴 亚, 潘 亚. [Research Progress in Oral Diseases and Oral Microbiota of Organ Transplant Patients]. SICHUAN DA XUE XUE BAO. YI XUE BAN = JOURNAL OF SICHUAN UNIVERSITY. MEDICAL SCIENCE EDITION 2023; 54:61-65. [PMID: 36647644 PMCID: PMC10409052 DOI: 10.12182/20230160210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Indexed: 01/18/2023]
Abstract
Organ transplantation is an effective treatment for end-stage organ diseases. However, organ transplant recipients are susceptible to a wide variety of oral diseases, including gingival enlargement, periodontitis, oral mucosal diseases, oral malignant tumors, and dental caries. Oral microbiota may have played an important role in the organ transplant patients' increased susceptibility to oral diseases and is associated with adverse events after organ transplantation, which is gradually gaining more attention among scholars. We, herein, reviewed the common oral diseases, including periodontal tissue diseases, oral mucosal diseases, oral malignant tumors, and dental caries in organ transplantation patients. Furthermore, we discussed the characteristic changes in the oral microbiota of organ transplantation patients and the influencing factors of these changes. In-depth study of oral microbiota of organ transplant patients provides a reference for the prevention and treatment of relevant diseases after organ transplantation and serves an important role in oral and systemic health management of organ transplant patients.
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Affiliation(s)
- 亚红 吴
- 中国医科大学附属口腔医院 牙周病科 (沈阳 110002)Department of Periodontology, Hospital of Stomatology, China Medical University, Shenyang 110002, China
| | - 亚萍 潘
- 中国医科大学附属口腔医院 牙周病科 (沈阳 110002)Department of Periodontology, Hospital of Stomatology, China Medical University, Shenyang 110002, China
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21
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Pilmis B, Weiss E, Scemla A, Le Monnier A, Grossi PA, Slavin MA, Van Delden C, Lortholary O, Paugam-Burtz C, Zahar JR. Multidrug-resistant Enterobacterales infections in abdominal solid organ transplantation. Clin Microbiol Infect 2023; 29:38-43. [PMID: 35716912 DOI: 10.1016/j.cmi.2022.06.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Revised: 05/31/2022] [Accepted: 06/03/2022] [Indexed: 12/27/2022]
Abstract
BACKGROUND Transplant recipients are highly susceptible to multidrug-resistant (MDR) related infections. The lack of early appropriate antimicrobial treatment may contribute to the high mortality due to MDR-related infections in transplant recipients especially in case of metallo-β-lactamases. OBJECTIVES In this review, we present the current state of knowledge concerning multidrug-resistant Gram negative bacilli's risk management in the care of solid-organ transplant recipients and suggest control strategies. SOURCES We searched for studies treating MDR g-negative bacilli related infections in the renal and hepatic transplant patient population. We included randomized and observational studies. CONTENT Solid-organ transplant is the best therapeutic option for patients diagnosed with end-stage organ disease. While the incidence of opportunistic infections is decreasing due to better prevention, the burden of "classical" infections related to MDR bacteria especially related to Gram-negative bacteria is constantly increasing. Over the last two decades, various MDR pathogens have emerged as a relevant cause of infection in this specific population associated with significant mortality. Several factors related to the management of transplant donor candidates and recipients increase the risk of MDR infections in transplant recipients. The awareness of this high susceptibility of transplant recipients to MDR-related infections challenges the choice of empirical therapy, while its appropriateness can only be validated a posteriori. Indeed, the lack of early appropriate antimicrobial treatment may contribute to the high mortality due to MDR-related infections in transplant recipients especially in case of metallo-β-lactamases. IMPLICATIONS Multidrug-resistant Gram-negative bacteria are associated with high morbidity and mortality in solid organ transplant recipients. It seems important to identify patients at risk of colonization/MDR bacteria to evaluate strategies to limit the risk of secondary infections and to minimize the inappropriate use of broad-spectrum antibiotics.
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Affiliation(s)
- Benoît Pilmis
- Centre d'infectiologie Necker-Pasteur, Hôpital Necker Enfants-Malades, Centre médical de l'institut Pasteur, Université de Paris, Paris, France; Équipe mobile de microbiologie Clinique, Groupe Hospitalier Paris Saint Joseph, Paris, France; Institut Micalis, UMR 1319, Université Paris-Saclay, INRAe, AgroParisTech, Chatenay-Malabry, France.
| | - Emmanuel Weiss
- Department of Anesthesiology and Critical Care, Beaujon Hospital, DMU Parabol, AP-HP.Nord, Université de Paris, Paris, France; Inserm UMR S1149, Centre de recherche sur l'inflammation
| | - Anne Scemla
- Departement of Nephrology-Transplantation, Necker Hospital, Assistance Publique-Hôpitaux de Paris, University Paris Descartes, Paris, France
| | - Alban Le Monnier
- Institut Micalis, UMR 1319, Université Paris-Saclay, INRAe, AgroParisTech, Chatenay-Malabry, France; Service de Microbiologie Clinique et Plateforme de dosage des anti-infectieux, Groupe Hospitalier Paris Saint Joseph, Paris, France
| | - Paolo Antonio Grossi
- Department of Medicine and Surgery, University of Insubria and ASST Sette Laghi, Ospedale di Circolo of Varese, Varese, Italy
| | - Monica A Slavin
- Victorian Infectious Diseases Service, Royal Melbourne Hospital, Melbourne, Australia; National Centre for Infections in Cancer, Peter MacCallum Cancer Centre, Melbourne, Australia; Sir Peter MacCallum Department of Oncology, The University of Melbourne, Parkville, Australia
| | - Christian Van Delden
- Transplant Infectious Diseases Unit, University Hospitals of Geneva and Faculty of Medicine, Geneva, Switzerland
| | - Olivier Lortholary
- Centre d'infectiologie Necker-Pasteur, Hôpital Necker Enfants-Malades, Centre médical de l'institut Pasteur, Université de Paris, Paris, France
| | - Catherine Paugam-Burtz
- Department of Anesthesiology and Critical Care, Beaujon Hospital, DMU Parabol, AP-HP.Nord, Université de Paris, Paris, France; Inserm UMR S1149, Centre de recherche sur l'inflammation
| | - Jean-Ralph Zahar
- IAME, UMR 1137, Université Paris 13, Sorbonne Paris Cité, France; Service de Microbiologie Clinique et Unité de Contrôle et de Prévention du risque Infectieux, Groupe Hospitalier Paris Seine Saint-Denis, AP-HP, Bobigny, France
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22
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Schwartz B, Dupont V, Dury S, Carsin-Vu A, Thomas Guillard, Caillard S, Frimat L, Sanchez S, Schvartz B, Bani-Sadr F, Damien Jolly, Philippe Rieu, Antoine Goury. Aetiology, clinical features, diagnostic studies, and outcomes of community-acquired pneumonia in kidney transplant recipients admitted to hospital: a multicentre retrospective French cohort study. Clin Microbiol Infect 2022; 29:542.e1-542.e5. [PMID: 36574948 DOI: 10.1016/j.cmi.2022.12.014] [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: 07/05/2022] [Revised: 12/06/2022] [Accepted: 12/18/2022] [Indexed: 12/25/2022]
Abstract
OBJECTIVES To assess the aetiology, clinical features, diagnostic studies and outcomes of community-acquired pneumonia (CAP) in a French cohort of hospitalized kidney transplant recipients. METHODS We performed a retrospective, multicentre study in kidney transplant recipients admitted to ten French centres for CAP from January 2016 to December 2018. CAP discharge diagnoses were clinically and radiologically validated. We assessed a descriptive analysis of all confirmed CAP including medical ward and intensive care unit admissions. RESULTS One hundred sixty-five CAP episodes in 132 patients were included. Median time from transplantation to admission was 6.4 (interquartile range, 1.6-12.3) years, with corticosteroid exposure in 112/165 (67.9%) cases. Sputum culture was performed in 47/165 (28.5%) cases including 7/47 (14.9%) positive samples. Bronchoscopy was performed in 87/165 (52.7%) cases with pathogens identified in 39/87 (44.8%) cases. Microbiological studies led to identifying a respiratory pathogen in 64/165 (38.8%) CAP episodes including 11/64 (17.2%) polymicrobial cases. Among these 64 episodes, 75 microorganisms were identified; 46/75 (61.3%) were core respiratory pathogens and 29/75 (38.7%) were opportunistic or drug-resistant organisms including Pneumocystis jirovecii 9/75 (12%), Pseudomonas aeruginosa 5/75 (6.7%), multidrug-resistant Enterobacteriaceae 4/75 (5.3%), and Aspergillus 4/75 (5.3%). Patients required intensive care unit admission in 26/165 (15.8%) episodes, invasive ventilation in 20/165 (12.1%) cases, and 22/165 (13.3%) needed in-hospital dialysis. DISCUSSION CAP episodes occurred in kidney transplant recipients with a long history of immunosuppressive drug exposure. Diagnostic studies identified a microorganism in more than one-third of CAP episodes, including drug-resistant and opportunistic pathogens.
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Affiliation(s)
- Benoît Schwartz
- Department of Nephrology, Reims University Hospitals, Reims, France
| | - Vincent Dupont
- Department of Nephrology, Reims University Hospitals, Reims, France; French Clinical Research Infrastructure Network, Investigation Network Initiative-Cardiovascular and Renal Clinical Trialists (F-CRIN INI-CRCT), Reims, France; Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Sandra Dury
- Department of Respiratory Diseases, Reims University Hospitals, Reims, France; EA7509 IRMAIC, University of Reims Champagne-Ardenne, Reims, France
| | - Aline Carsin-Vu
- Department of Radiology, Reims University Hospitals, Reims, France
| | - Thomas Guillard
- Université de Reims Champagne-Ardenne, INSERM, CHU de Reims, Laboratoire de Bactériologie-Virologie-Hygiène Hospitalière-Parasitologie-Mycologie, P3Cell, Reims, France; Laboratoire de Bactériologie-Virologie-Hygiène Hospitalière-Parasitologie-Mycologie, Reims University Hospitals, Hôpital Robert Debré, Reims, France
| | - Sophie Caillard
- Department of Nephrology and Transplantation, Strasbourg University Hospitals, Strasbourg, France; INSERM 1109, Fédération de Médecine Translationnelle, LabEx TRANSPLANTEX, Strasbourg, France
| | - Luc Frimat
- Department of Nephrology and Transplantation, Nancy University Hospitals, Vandoeuvre les Nancy, France; EA 4360, INSERM CIC-EC CIE6, Apemac, Vandoeuvre les N, France
| | - Stephane Sanchez
- Clinical Research and Methological Unit, Troyes Hospital, Troyes, France
| | - Betoul Schvartz
- Department of Nephrology, Reims University Hospitals, Reims, France
| | - Firouzé Bani-Sadr
- Department of Internal Medicine, Infectious Diseases, and Clinical Immunology, Reims University Hospitals, Reims, France
| | - Damien Jolly
- Department of Research and Public Health, Reims University Hospitals, Reims, France
| | - Philippe Rieu
- Department of Nephrology, Reims University Hospitals, Reims, France
| | - Antoine Goury
- Intensive Care Department, Reims University Hospitals, Reims, France.
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23
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Overvad M, Koch A, Jespersen B, Gustafsson F, Krause TG, Hansen CH, Ethelberg S, Obel N. Outcomes following SARS-CoV-2 infection in individuals with and without solid organ transplantation-A Danish nationwide cohort study. Am J Transplant 2022; 22:2627-2636. [PMID: 35801493 PMCID: PMC9349987 DOI: 10.1111/ajt.17142] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2022] [Revised: 06/29/2022] [Accepted: 07/03/2022] [Indexed: 02/04/2023]
Abstract
The risk of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection, hospitalization and death, and the effects of SARS-CoV-2 vaccines in solid organ transplant recipients (SOTRs) is still debated. We performed a nationwide, population-based, matched cohort study, including all Danish SOTRs (n = 5184) and a matched cohort from the general population (n = 41 472). Cox regression analyses were used to calculate incidence rate ratios (IRRs). SOTRs had a slightly increased risk of SARS-CoV-2 infection and were vaccinated earlier than the general population. The overall risk of hospital contact with COVID-19, severe COVID-19, need for assisted respiration, and hospitalization followed by death was substantially higher in SOTRs (IRR: 32.8 95%CI [29.0-37.0], 9.2 [6.7-12.7], 12.5 [7.6-20.8], 12.4 [7.9-12.7]). The risk of hospitalization and death after SARS-CoV-2 infection decreased substantially in SOTRs after the emergence of the Omicron variant (IRR: 0.45 [0.37-0.56], 0.17 [0.09-0.30]). Three vaccinations reduced the risk of SARS-CoV-2 infection only marginally compared to two vaccinations, but SOTRs with three vaccinations had a lower risk of death (IRR: 022 [0.16-0.35]). We conclude that SOTRs have a risk of SARS-CoV-2 infection comparable to the general population, but substantially increased the risk of hospitalization and death following SARS-CoV-2 infection. A third vaccination only reduces the risk of SARS-CoV2 infection marginally, but SOTRs vaccinated 3 times have reduced mortality.
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Affiliation(s)
- Maria Overvad
- Department of Infectious Disease Epidemiology and Prevention, Statens Serum Institut, Copenhagen, Denmark
| | - Anders Koch
- Department of Infectious Disease Epidemiology and Prevention, Statens Serum Institut, Copenhagen, Denmark.,Department of Infectious Diseases, Copenhagen University Hospital, Copenhagen, Denmark.,Global Health Section, Department of Public Health, University of Copenhagen, Copenhagen, Denmark
| | - Bente Jespersen
- Department of Nephrology, Aarhus University Hospital, Aarhus, Denmark
| | - Finn Gustafsson
- Department of Cardiology, Copenhagen University Hospital, Copenhagen, Denmark
| | - Tyra Grove Krause
- Department of Infectious Disease Epidemiology and Prevention, Statens Serum Institut, Copenhagen, Denmark
| | - Christian Holm Hansen
- Department of Infectious Disease Epidemiology and Prevention, Statens Serum Institut, Copenhagen, Denmark
| | - Steen Ethelberg
- Department of Infectious Disease Epidemiology and Prevention, Statens Serum Institut, Copenhagen, Denmark.,Global Health Section, Department of Public Health, University of Copenhagen, Copenhagen, Denmark
| | - Niels Obel
- Department of Infectious Disease Epidemiology and Prevention, Statens Serum Institut, Copenhagen, Denmark.,Department of Infectious Diseases, Copenhagen University Hospital, Copenhagen, Denmark.,Faculty of Health Sciences, University of Copenhagen, Copenhagen, Denmark
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24
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Del Bello A, Marion O, Izopet J, Kamar N. Can the COVID-19 Pandemic Improve the Management of Solid Organ Transplant Recipients? Viruses 2022; 14:v14091860. [PMID: 36146666 PMCID: PMC9500961 DOI: 10.3390/v14091860] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Revised: 08/04/2022] [Accepted: 08/22/2022] [Indexed: 11/28/2022] Open
Abstract
Increased mortality due to SARS-CoV-2 infection was observed among solid organ transplant patients. During the pandemic, in order to prevent and treat COVID-19 infections in this context, several innovative procedures and therapies were initiated within a short period of time. A large number of these innovations can be applied and expanded to improve the management of non-COVID-19 infectious diseases in solid organ transplant patients and in the case of a future pandemic. In this vein, the present paper reviews and discusses medical care system adaptation, modification of immunosuppression, adjuvant innovative therapies, the role of laboratory expertise, and the prevention of infections as examples of such innovations.
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Affiliation(s)
- Arnaud Del Bello
- Department of Nephrology and Organ Transplantation, Toulouse Rangueil University Hospital, 31059 Toulouse, France
- Toulouse Institute for Infectious and Inflammatory Diseases (Infinity), INSERM UMR 1291, 31300 Toulouse, France
| | - Olivier Marion
- Department of Nephrology and Organ Transplantation, Toulouse Rangueil University Hospital, 31059 Toulouse, France
- Toulouse Institute for Infectious and Inflammatory Diseases (Infinity), INSERM UMR 1291, 31300 Toulouse, France
| | - Jacques Izopet
- Toulouse Institute for Infectious and Inflammatory Diseases (Infinity), INSERM UMR 1291, 31300 Toulouse, France
- University Toulouse III—Paul Sabatier, 31000 Toulouse, France
- Laboratory of Virology, Toulouse Purpan University Hospital, 31300 Toulouse, France
| | - Nassim Kamar
- Department of Nephrology and Organ Transplantation, Toulouse Rangueil University Hospital, 31059 Toulouse, France
- Toulouse Institute for Infectious and Inflammatory Diseases (Infinity), INSERM UMR 1291, 31300 Toulouse, France
- University Toulouse III—Paul Sabatier, 31000 Toulouse, France
- Correspondence: ; Tel.: +33-5-61-32-23-35; Fax: +33-5-61-32-39-89
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25
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A Systematic Review and Meta-Analysis of Serologic Response following Coronavirus Disease 2019 (COVID-19) Vaccination in Solid Organ Transplant Recipients. Viruses 2022; 14:v14081822. [PMID: 36016444 PMCID: PMC9413038 DOI: 10.3390/v14081822] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Revised: 08/16/2022] [Accepted: 08/17/2022] [Indexed: 12/23/2022] Open
Abstract
Solid organ transplant (SOT) recipients are at greater risk of coronavirus disease 2019 (COVID-19) and have attenuated response to vaccinations. In the present meta-analysis, we aimed to evaluate the serologic response to the COVID-19 vaccine in SOT recipients. A search of electronic databases was conducted to identify SOT studies that reported the serologic response to COVID-19 vaccination. We analyzed 44 observational studies including 6158 SOT recipients. Most studies were on mRNA vaccination (mRNA-1273 or BNT162b2). After a single and two doses of vaccine, serologic response rates were 8.6% (95% CI 6.8–11.0) and 34.2% (95% CI 30.1–38.7), respectively. Compared to controls, response rates were lower after a single and two doses of vaccine (OR 0.0049 [95% CI 0.0021–0.012] and 0.0057 [95% CI 0.0030–0.011], respectively). A third dose improved the rate to 65.6% (95% CI 60.4–70.2), but in a subset of patients who had not achieved a response after two doses, it remained low at 35.7% (95% CI 21.2–53.3). In summary, only a small proportion of SOT recipients achieved serologic response to the COVID-19 mRNA vaccine, and that even the third dose had an insufficient response. Alternative strategies for prophylaxis in SOT patients need to be developed. Key Contribution: In this meta-analysis that included 6158 solid organ transplant recipients, the serologic response to the COVID-19 vaccine was extremely low after one (8.6%) and two doses (34.2%). The third dose of the vaccine improved the rate only to 66%, and in the subset of patients who had not achieved a response after two doses, it remained low at 36%. The results of our study suggest that a significant proportion of solid organ transplant recipients are unable to achieve a sufficient serologic response after completing not only the two series of vaccination but also the third booster dose. There is an urgent need to develop strategies for prophylaxis including modified vaccine schedules or the use of monoclonal antibodies in this vulnerable patient population.
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26
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Huang Y, He Z, Manyande A, Feng M, Xiang H. Nerve regeneration in transplanted organs and tracer imaging studies: A review. Front Bioeng Biotechnol 2022; 10:966138. [PMID: 36051591 PMCID: PMC9424764 DOI: 10.3389/fbioe.2022.966138] [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: 06/10/2022] [Accepted: 07/21/2022] [Indexed: 11/13/2022] Open
Abstract
The technique of organ transplantation is well established and after transplantation the patient might be faced with the problem of nerve regeneration of the transplanted organ. Transplanted organs are innervated by the sympathetic, parasympathetic, and visceral sensory plexuses, but there is a lack of clarity regarding the neural influences on the heart, liver and kidneys and the mechanisms of their innervation. Although there has been considerable recent work exploring the potential mechanisms of nerve regeneration in organ transplantation, there remains much that is unknown about the heterogeneity and individual variability in the reinnervation of organ transplantation. The widespread availability of radioactive nerve tracers has also made a significant contribution to organ transplantation and has helped to investigate nerve recovery after transplantation, as well as providing a direction for future organ transplantation research. In this review we focused on neural tracer imaging techniques in humans and provide some conceptual insights into theories that can effectively support our choice of radionuclide tracers. This also facilitates the development of nuclear medicine techniques and promotes the development of modern medical technologies and computer tools. We described the knowledge of neural regeneration after heart transplantation, liver transplantation and kidney transplantation and apply them to various imaging techniques to quantify the uptake of radionuclide tracers to assess the prognosis of organ transplantation. We noted that the aim of this review is both to provide clinicians and nuclear medicine researchers with theories and insights into nerve regeneration in organ transplantation and to advance imaging techniques and radiotracers as a major step forward in clinical research. Moreover, we aimed to further promote the clinical and research applications of imaging techniques and provide clinicians and research technology developers with the theory and knowledge of the nerve.
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Affiliation(s)
- Yan Huang
- Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
- Department of Interventional Therapy, the First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning, China
| | - Zhigang He
- Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Anne Manyande
- School of Human and Social Sciences, University of West London, London, United Kingdom
| | - Maohui Feng
- Department of Gastrointestinal Surgery, Wuhan Peritoneal Cancer Clinical Medical Research Center, Zhongnan Hospital of Wuhan University, Hubei Key Laboratory of Tumor Biological Behaviors and Hubei Cancer Clinical Study Center, Wuhan, Hubei, China
- *Correspondence: Maohui Feng, ; Hongbing Xiang,
| | - Hongbing Xiang
- Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
- *Correspondence: Maohui Feng, ; Hongbing Xiang,
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27
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Pan L, Wu F, Cai Q, Xu Z, Hu H, Tang T, Yue R, Hou Y, Zhang X, Fang Y, Huang X, Kang Y. Whole Genome Profiling of Lung Microbiome in Solid Organ Transplant Recipients Reveals Virus Involved Microecology May Worsen Prognosis. Front Cell Infect Microbiol 2022; 12:863399. [PMID: 35372133 PMCID: PMC8967177 DOI: 10.3389/fcimb.2022.863399] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Accepted: 02/22/2022] [Indexed: 11/25/2022] Open
Abstract
Solid organ transplantation (SOT) is the final therapeutic option for recipients with end-stage organ failure, and its long-term success is limited by infections and chronic allograft dysfunction. Viral infection in SOT recipients is considered an important factor affecting prognosis. In this study, we retrospectively analyzed 43 cases of respiratory infections in SOT recipients using metagenomic next-generation sequencing (mNGS) for bronchoalveolar lavage fluid (BALF). At least one virus was detected in 26 (60.5%) recipients, while 17 (39.5%) were virus-negative. Among virus-positive recipients, cytomegalovirus (CMV) was detected in 14 (32.6%), Torque teno virus (TTV) was detected in 9 (20.9%), and other viruses were detected in 6 (14.0%). Prognostic analysis showed that the mortality of the virus-positive group was higher than that of the virus-negative group regardless whether it is the main cause of infection. Analysis of different types of viruses showed that the mortality of the CMV-positive group was significantly higher than that of the CMV-negative group, but no significant difference was observed in other type of virus groups. The diversity analysis of the lung microbiome showed that there was a significant difference between the virus-positive group and the negative group, in particular, the significant differences in microorganisms such as Pneumocystis jirovecii (PJP) and Moraxella osloensiswere detected. Moreover, in the presence of CMV, Pneumocystis jirovecii, Veillonella parvula, and other species showed dramatic changes in the lung of SOT patients, implying that high degree of co-infection between CMV and Pneumocystis jirovecii may occur. Taken together, our study shows that the presence of virus is associated with worse prognosis and dramatically altered lung microbiota in SOT recipients.
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Affiliation(s)
- Lingai Pan
- Department of Critical Care Medicine, West China Hospital, West China Clinical Medical School, Sichuan University, Chengdu, China
- Department of Critical Care Medicine, Sichuan Provincial People’s Hospital, University of Electronic Science and Technology of China, Chengdu, China
| | - Fengsheng Wu
- Genoxor Medical Science and Technology Inc., Zhejiang, China
| | - Qingqing Cai
- Genoxor Medical Science and Technology Inc., Zhejiang, China
| | - Zhuofei Xu
- Genoxor Medical Science and Technology Inc., Zhejiang, China
| | - Huan Hu
- Department of Critical Care Medicine, Sichuan Provincial People’s Hospital, University of Electronic Science and Technology of China, Chengdu, China
| | - Tian Tang
- Department of Critical Care Medicine, Sichuan Provincial People’s Hospital, University of Electronic Science and Technology of China, Chengdu, China
| | - Ruiming Yue
- Department of Critical Care Medicine, Sichuan Provincial People’s Hospital, University of Electronic Science and Technology of China, Chengdu, China
| | - Yifu Hou
- Department of Organ Transplant Center, Sichuan Provincial People’s Hospital, University of Electronic Science and Technology of China, Chengdu, China
| | - Xiaoqin Zhang
- Department of Critical Care Medicine, Sichuan Provincial People’s Hospital, University of Electronic Science and Technology of China, Chengdu, China
| | - Yuan Fang
- Genoxor Medical Science and Technology Inc., Zhejiang, China
| | - Xiaobo Huang
- Department of Critical Care Medicine, Sichuan Provincial People’s Hospital, University of Electronic Science and Technology of China, Chengdu, China
- *Correspondence: Yan Kang, ; Xiaobo Huang,
| | - Yan Kang
- Department of Critical Care Medicine, West China Hospital, West China Clinical Medical School, Sichuan University, Chengdu, China
- *Correspondence: Yan Kang, ; Xiaobo Huang,
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28
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Juneja T, Kazmi M, Mellace M, Saidi RF. Utilization of Treg Cells in Solid Organ Transplantation. Front Immunol 2022; 13:746889. [PMID: 35185868 PMCID: PMC8854209 DOI: 10.3389/fimmu.2022.746889] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2021] [Accepted: 01/17/2022] [Indexed: 11/29/2022] Open
Abstract
Organ transplants have been a life-saving form of treatment for many patients who are facing end stage organ failure due to conditions such as diabetes, hypertension, various congenital diseases, idiopathic diseases, traumas, and other end-organ failure. While organ transplants have been monumental in treatment for these conditions, the ten year survival and long-term outcome for these patients is poor. After receiving the transplant, patients receive a multi-drug regimen of immunosuppressants. These drugs include cyclosporine, mTOR inhibitors, corticosteroids, and antibodies. Polyclonal antibodies, which inhibit the recipient’s B lymphocytes, and antibodies targeting host cytokine inhibitors which prevent activation of B cells by T cells. Use of these drugs suppresses the immune system and increases the risk of opportunistic pathogen infections, tumors, and further damage to the transplanted organs and vasculature. Many regulatory mechanisms are present in organs to prevent the development of autoimmune disease, and Tregs are central to these mechanisms. Tregs secrete suppressive cytokines such as IL-10, TGF-B, and IL-35 to suppress T cells. Additionally, Tregs can bind to target cells to induce cell cycle arrest and apoptosis and can inhibit induction of IL-2 mRNA in target T cells. Tregs also interact with CTLA-4 and CD80/CD86 on antigen presenting cells (APCs) to prevent their binding to CD28 present on T cells. Due to their various immunosuppressive capabilities, Tregs are being examined as a possible treatment for patients that receive organ transplants to minimize rejection and prevent the negative outcomes. Several studies in which participants were given Tregs after undergoing organ transplantations were reviewed to determine the efficacy and safety of using Tregs in solid organ transplantation to prevent adverse outcomes.
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29
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Invasive Candidiasis in Liver Transplant Recipients: A Review. CURRENT FUNGAL INFECTION REPORTS 2021. [DOI: 10.1007/s12281-021-00426-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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30
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Tseng HT, Wu XC, Huang CY, Shih CM, Lin YW, Lin FY. The Impact of SARS-CoV-2 Infection, and Application of Immunosuppressive Agents in Kidney Transplant Recipients Suffering from COVID-19. Pharmaceuticals (Basel) 2021; 14:ph14101054. [PMID: 34681278 PMCID: PMC8537512 DOI: 10.3390/ph14101054] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Revised: 10/14/2021] [Accepted: 10/15/2021] [Indexed: 01/08/2023] Open
Abstract
In December 2019, the COVID-19 pandemic began to ravage the world quickly, causing unprecedented losses in human life and the economy. A statistical study revealed that the proportion of solid organ transplant (SOT) recipients with severe symptoms and deaths after being infected by SARS-CoV-2 is considerably higher than that of non-SOT recipients, and the prognosis is relatively poor. In addition, the clinical manifestation of SOT recipients suffering from COVID-19 is different from that of general COVID-19 patients. Acute kidney injury (AKI) is a common complication in COVID-19 patients, and it is likely more common among SOT recipients infected with SARS-CoV-2. Clinical experts consider that SOT recipients have long-term treatment with immunosuppressants, and the comorbidities are driven by a high rate of severe symptoms and mortality. Orthotopic kidney allograft transplantation is an effective treatment for patients suffering from end-stage kidney disease/kidney failure through which they can easily extend their life. Indeed, kidney transplant recipients have suffered significant damage during this pandemic. To effectively reduce the severity of symptoms and mortality of kidney transplant recipients suffering from COVID-19, precise application of various drugs, particularly immunosuppressants, is necessary. Therefore, herein, we will collate the current clinical experience of treating COVID-19 infection in kidney transplant recipients and discuss the adjustment of patients using immunosuppressive agents in the face of COVID-19.
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Affiliation(s)
- Horng-Ta Tseng
- Taipei Heart Institute, Taipei Medical University, Taipei 110, Taiwan; (H.-T.T.); (X.-C.W.); (C.-Y.H.); (C.-M.S.)
- Division of Cardiology and Cardiovascular Research Center, Taipei Medical University Hospital, Taipei 110, Taiwan
- Departments of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei 110, Taiwan
| | - Xiang-Chi Wu
- Taipei Heart Institute, Taipei Medical University, Taipei 110, Taiwan; (H.-T.T.); (X.-C.W.); (C.-Y.H.); (C.-M.S.)
- Division of Cardiology and Cardiovascular Research Center, Taipei Medical University Hospital, Taipei 110, Taiwan
- Departments of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei 110, Taiwan
| | - Chun-Yao Huang
- Taipei Heart Institute, Taipei Medical University, Taipei 110, Taiwan; (H.-T.T.); (X.-C.W.); (C.-Y.H.); (C.-M.S.)
- Division of Cardiology and Cardiovascular Research Center, Taipei Medical University Hospital, Taipei 110, Taiwan
- Departments of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei 110, Taiwan
| | - Chun-Ming Shih
- Taipei Heart Institute, Taipei Medical University, Taipei 110, Taiwan; (H.-T.T.); (X.-C.W.); (C.-Y.H.); (C.-M.S.)
- Division of Cardiology and Cardiovascular Research Center, Taipei Medical University Hospital, Taipei 110, Taiwan
- Departments of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei 110, Taiwan
| | - Yi-Wen Lin
- Taipei Heart Institute, Taipei Medical University, Taipei 110, Taiwan; (H.-T.T.); (X.-C.W.); (C.-Y.H.); (C.-M.S.)
- Departments of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei 110, Taiwan
- Institute of Oral Biology, National Yang Ming Chiao Tung University, Taipei 112, Taiwan
- Correspondence: (Y.-W.L.); (F.-Y.L.); Tel.: +886-2-87910329 (Y.-S.J.)
| | - Feng-Yen Lin
- Taipei Heart Institute, Taipei Medical University, Taipei 110, Taiwan; (H.-T.T.); (X.-C.W.); (C.-Y.H.); (C.-M.S.)
- Division of Cardiology and Cardiovascular Research Center, Taipei Medical University Hospital, Taipei 110, Taiwan
- Departments of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei 110, Taiwan
- Correspondence: (Y.-W.L.); (F.-Y.L.); Tel.: +886-2-87910329 (Y.-S.J.)
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31
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Cachera L, Adenis A, Dueymes JM, Rochemont D, Guarmit B, Roura R, Meddeb M, Nacher M, Djossou F, Epelboin L. What Is the Part of Tropical Diseases Among Infectious Complications in Renal Transplant Recipients in the Amazon? A 12-Year Multicenter Retrospective Analysis in French Guiana. Transplant Proc 2021; 53:2242-2251. [PMID: 34474909 DOI: 10.1016/j.transproceed.2021.07.038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2021] [Accepted: 07/19/2021] [Indexed: 10/20/2022]
Abstract
BACKGROUND Infectious complications in kidney transplant recipients (KTRs) are well studied in temperate countries but remain barely known in tropical ones. The main objective of this study was to describe infection-related hospitalizations in patients living in the Amazon, where it has never been described. METHODS All KTRs residing in French Guiana between 2007 and 2018 were included retrospectively. Infection-related hospitalizations were collected in the main medical centers of the territory. RESULTS Eighty-two patients were included, and 42 were infected during the study period (51%). Eighty-seven infections were identified. The main sites of infection were urinary, in 29% of cases (25/87), and pulmonary, in 22% of cases (19/87). When documented (48/87), bacterial infections were predominant (35/48), followed by viral (8/48), fungal (4/48), and parasitic infections (1/48). Endemic so-called tropical infections accounted for 6% of infections (5/87). Histoplasma capsulatum was the most commonly isolated fungus (2/4). CONCLUSIONS This study suggests that the spectrum of infections in KTRs in French Guiana differs little from that of temperate countries. Nevertheless, some tropical infections are described. More studies on fungal infections in KTRs should be undertaken to clarify the weight of histoplasmosis in these patients.
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Affiliation(s)
- Laurene Cachera
- Infectious and Tropical Medicine Department, Hospital Center of Cayenne, Cayenne, French Guiana, France; Faculté de Médecine, Université de Paris, Paris, France.
| | - Antoine Adenis
- Clinical Investigation Center in Clinical Epidemiology French Guiana « Inserm CIC 1424 », Hospital Center of Cayenne, Cayenne, French Guiana, France; EA3593, Epidémiologie des Parasitoses et des Mycoses Tropicales, Medicine University of the West Indies and French Guiana, Cayenne, French Guiana, France
| | - Jean-Marc Dueymes
- Nephrology Department, Hospital Center of Cayenne, Cayenne, French Guiana, France
| | - Devi Rochemont
- Clinical Investigation Center in Clinical Epidemiology French Guiana « Inserm CIC 1424 », Hospital Center of Cayenne, Cayenne, French Guiana, France
| | - Basma Guarmit
- Coordination Régionale de lutte contre le Virus de l'Immunodéficience Humaine, « COREVIH », Hospital Center of Cayenne, French Guiana, France
| | - Raoul Roura
- Association pour le Traitement de l'Insuffisance Rénale Guyane « A.T.I.R.G », Cayenne, French Guiana, France
| | - Mohamed Meddeb
- Nephrology Department, Hospital Center of Cayenne, Cayenne, French Guiana, France
| | - Mathieu Nacher
- Clinical Investigation Center in Clinical Epidemiology French Guiana « Inserm CIC 1424 », Hospital Center of Cayenne, Cayenne, French Guiana, France; EA3593, Epidémiologie des Parasitoses et des Mycoses Tropicales, Medicine University of the West Indies and French Guiana, Cayenne, French Guiana, France
| | - Felix Djossou
- Infectious and Tropical Medicine Department, Hospital Center of Cayenne, Cayenne, French Guiana, France; EA3593, Epidémiologie des Parasitoses et des Mycoses Tropicales, Medicine University of the West Indies and French Guiana, Cayenne, French Guiana, France
| | - Loic Epelboin
- Infectious and Tropical Medicine Department, Hospital Center of Cayenne, Cayenne, French Guiana, France; EA3593, Epidémiologie des Parasitoses et des Mycoses Tropicales, Medicine University of the West Indies and French Guiana, Cayenne, French Guiana, France
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32
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Ward D, Gørtz S, Ernst MT, Andersen NN, Kjær SK, Hallas J, Christensen S, Christiansen CF, Israelsen SB, Benfield T, Pottegård A, Jess T. The effect of immunosuppressants on the prognosis of SARS-CoV-2 infection. Eur Respir J 2021; 59:13993003.00769-2021. [PMID: 34475227 PMCID: PMC8435811 DOI: 10.1183/13993003.00769-2021] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Accepted: 08/09/2021] [Indexed: 12/15/2022]
Abstract
Background Immunosuppression may worsen severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection. We conducted a nationwide cohort study of the effect of exposure to immunosuppressants on the prognosis of SARS-CoV-2 infection in Denmark. Methods We identified all SARS-CoV-2 test-positive patients from February 2020 to October 2020 and linked healthcare data from nationwide registers, including prescriptions for the exposure (immunosuppressant drugs). We estimated relative risks of hospital admission, intensive care unit (ICU) admission and death (each studied independently up to 30 days from testing) with a log-linear binomial regression adjusted for confounders using a propensity score-based matching weights model. Results A composite immunosuppressant exposure was associated with a significantly increased risk of death (adjusted relative risk 1.56 (95% CI 1.10–2.22)). The increased risk of death was mainly driven by exposure to systemic glucocorticoids (adjusted relative risk 2.38 (95% CI 1.72–3.30)), which were also associated with an increased risk of hospital admission (adjusted relative risk 1.34 (95% CI 1.10–1.62)), but not of ICU admission (adjusted relative risk 1.76 (95% CI 0.93–3.35)); these risks were greater for high cumulative doses of glucocorticoids than for moderate doses. Exposure to selective immunosuppressants, tumour necrosis factor inhibitors or interleukin inhibitors was not associated with an increased risk of hospitalisation, ICU admission or death, nor was exposure to calcineurin inhibitors, other immunosuppressants, hydroxychloroquine or chloroquine. Conclusions Exposure to glucocorticoids was associated with increased risks of hospital admission and death. Further investigation is needed to determine the optimal management of coronavirus disease 2019 (COVID-19) in patients with pre-morbid glucocorticoid usage, specifically whether these patients require altered doses of glucocorticoids. In a nationwide cohort study of SARS-CoV-2 infections in Denmark, pre-morbid exposure to systemic glucocorticoids was associated with an increased risk of hospital admission and death, whereas other immunosuppressants were nothttps://bit.ly/3xRp7ZL
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Affiliation(s)
- Daniel Ward
- Department of Epidemiology Research, Statens Serum Institut, Copenhagen, Denmark .,Department of Clinical Medicine, Center for Molecular Prediction of Inflammatory Bowel Disease (PREDICT), Aalborg University, Copenhagen, Denmark
| | - Sanne Gørtz
- Department of Epidemiology Research, Statens Serum Institut, Copenhagen, Denmark
| | - Martin Thomsen Ernst
- Department of Public Health, Clinical Pharmacology, Pharmacy and Environmental Medicine, University of Southern Denmark, Odense, Denmark
| | - Nynne Nyboe Andersen
- Department of Medical Gastroenterology and Hepatology, Rigshospitalet, Copenhagen, Denmark
| | - Susanne K Kjær
- Unit of Virus, Lifestyle and Genes, Danish Cancer Society Research Center, Copenhagen, Denmark
| | - Jesper Hallas
- Research Unit of Clinical Pharmacology, University of Southern Denmark, Odense, Denmark
| | | | | | - Simone Bastrup Israelsen
- Department of Infectious Diseases, Center of Research & Disruption of Infectious Diseases (CREDID), Copenhagen University Hospital, Amager and Hvidovre Hospital, Hvidovre, Denmark
| | - Thomas Benfield
- Department of Infectious Diseases, Center of Research & Disruption of Infectious Diseases (CREDID), Copenhagen University Hospital, Amager and Hvidovre Hospital, Hvidovre, Denmark
| | - Anton Pottegård
- Department of Clinical Pharmacology and Pharmacy, University of Southern Denmark, Odense, Denmark
| | - Tine Jess
- Department of Epidemiology Research, Statens Serum Institut, Copenhagen, Denmark.,Department of Clinical Medicine, Center for Molecular Prediction of Inflammatory Bowel Disease (PREDICT), Aalborg University, Copenhagen, Denmark
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Clinical Characteristics, Treatments and Outcomes of 18 Lung Transplant Recipients with COVID-19. TRANSPLANTOLOGY 2021. [DOI: 10.3390/transplantology2020022] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
We report clinical features, treatments and outcomes in 18 lung transplant recipients with laboratory confirmed SARS-CoV-2 infection. We performed a single center, retrospective case series study of lung transplant recipients, who tested positive for SARS-CoV-2 between 1 February 2020 and 1 March 2021. Clinical, laboratory and radiology findingswere obtained. Treatment regimens and patient outcome data were obtained by reviewing the electronic medical record. Mean age was 49.9 (22–68) years, and twelve (67%) patients were male. The most common symptoms were fever (n = 9, 50%), nausea/vomiting (n = 7, 39%), cough (n = 6, 33%), dyspnea (n = 6, 33%) and fatigue (n = 6, 33%). Headache was reported by five patients (28%). The most notable laboratory findings were elevated levels of C-reactive protein (CRP) and lactate dehydrogenase (LDH). Computed Tomography (CT) of the chest was performed in all hospitalized patients (n = 11, 7%), and showed ground-glass opacities (GGO) in 11 patients (100%), of whom nine (82%) had GGO combined with pulmonary consolidations. Six (33%) patients received remdesivir, five (28%) intravenous dexamethasone either alone or in combination with remdesivir, and 15 (83%) were treated with broad spectrum antibiotics including co-amoxicillin, tazobactam-piperacillin and meropenem. Four (22%) patients were transferred to the intensive care unit, two patients (11%) required invasive mechanical ventilation who could not be successfully extubated and died. Eighty-nine percent of our patients survived COVID-19 and were cured. Two patients with severe COVID-19 did not survive.
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34
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Eichenberger EM, Ruffin F, Dagher M, Lerebours R, Jung SH, Sharma-Kuinkel B, Macintyre AN, Thaden JT, Sinclair M, Hale L, Kohler C, Palmer SM, Alexander BD, Fowler VG, Maskarinec SA. Bacteremia in solid organ transplant recipients as compared to immunocompetent patients: Acute phase cytokines and outcomes in a prospective, matched cohort study. Am J Transplant 2021; 21:2113-2122. [PMID: 33131212 PMCID: PMC8085168 DOI: 10.1111/ajt.16388] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Revised: 10/08/2020] [Accepted: 10/25/2020] [Indexed: 01/25/2023]
Abstract
We undertook a prospective, matched cohort study of patients with Staphylococcus aureus bacteremia (SAB) and gram-negative bacteremia (GNB) to compare the characteristics, outcomes, and chemokine and cytokine response in transplant recipients to immunocompetent, nontransplant recipients. Fifty-five transplant recipients (GNB n = 29; SAB n = 26) and 225 nontransplant recipients (GNB n = 114; SAB n = 111) were included for clinical analysis. Transplant GNB had a significantly lower incidence of septic shock than nontransplant GNB (10.3% vs 30.7%, p = .03). Thirty-day mortality did not differ significantly between transplant and nontransplant recipients with GNB (10.3% vs 15.8%, p = .57) or SAB (0.0% vs 11.7%, p = .13). Next, transplant patients were matched 1:1 with nontransplant patients for the chemokine and cytokine analysis. Five cytokines and chemokines were significantly lower in transplant GNB vs nontransplant GNB: IL-2 (median [IQR]: 7.1 pg/ml [7.1, 7.1] vs 32.6 pg/ml [7.1, 88.0]; p = .001), MIP-1β (30.7 pg/ml [30.7, 30.7] vs 243.3 pg/ml [30.7, 344.4]; p = .001), IL-8 (32.0 pg/ml [5.6, 53.1] vs 59.1 pg/ml [39.2, 119.4]; p = .003), IL-15 (12.0 pg/ml [12.0, 12.0] vs 12.0 pg/ml [12.0, 126.7]; p = .03), and IFN-α (5.1 pg/mL [5.1, 5.1] vs 5.1 pg/ml [5.1, 26.3]; p = .04). Regulated upon Activation, Normal T Cell Expressed and Secreted (RANTES) was higher in transplant SAB vs nontransplant SAB (mean [SD]: 750.2 pg/ml [194.6] vs 656.5 pg/ml [147.6]; p = .046).
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Affiliation(s)
- Emily M Eichenberger
- Division of Infectious Diseases, Department of Medicine, Duke University, Durham, North Carolina, United States of America
| | - Felicia Ruffin
- Division of Infectious Diseases, Department of Medicine, Duke University, Durham, North Carolina, United States of America
| | - Michael Dagher
- Division of Infectious Diseases, Department of Medicine, Duke University, Durham, North Carolina, United States of America
| | - Reginald Lerebours
- Department of Biostatistics & Bioinformatics, Duke University, Durham, North Carolina, United States of America
| | - Sin-Ho Jung
- Department of Biostatistics & Bioinformatics, Duke University, Durham, North Carolina, United States of America
| | - Batu Sharma-Kuinkel
- Division of Infectious Diseases, Department of Medicine, Duke University, Durham, North Carolina, United States of America
| | - Andrew N Macintyre
- Duke Human Vaccine Institute, Duke University School of Medicine, Durham, North Carolina
| | - Joshua T Thaden
- Division of Infectious Diseases, Department of Medicine, Duke University, Durham, North Carolina, United States of America
| | - Matthew Sinclair
- United States of America, Department of Nephrology, Duke University, Durham, North Carolina, United States of America,,Duke Clinical Research Institute, Duke University, Durham, North Carolina, United States of America
| | - Lauren Hale
- Division of Infectious Diseases, Department of Medicine, Duke University, Durham, North Carolina, United States of America
| | - Celia Kohler
- Division of Infectious Diseases, Department of Medicine, Duke University, Durham, North Carolina, United States of America
| | - Scott M Palmer
- Department of Transplant Pulmonology, Duke University, Durham, North Carolina, United States,,Duke Clinical Research Institute, Duke University, Durham, North Carolina, United States of America
| | - Barbara D Alexander
- Division of Infectious Diseases, Department of Medicine, Duke University, Durham, North Carolina, United States of America
| | - Vance G Fowler
- Division of Infectious Diseases, Department of Medicine, Duke University, Durham, North Carolina, United States of America,,Duke Clinical Research Institute, Duke University, Durham, North Carolina, United States of America,Corresponding author: Vance G Fowler Jr., MD, MHS, Duke University Medical Center, Division of Infectious Diseases, 315 Trent Drive Hanes House, Durham, NC 27710, , (P): 919 668-6053, (F): 919 684-8902
| | - Stacey A Maskarinec
- Division of Infectious Diseases, Department of Medicine, Duke University, Durham, North Carolina, United States of America
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35
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van Delden C, Stampf S, Hirsch HH, Manuel O, Meylan P, Cusini A, Hirzel C, Khanna N, Weisser M, Garzoni C, Boggian K, Berger C, Nadal D, Koller M, Saccilotto R, Mueller NJ. Burden and Timeline of Infectious Diseases in the First Year After Solid Organ Transplantation in the Swiss Transplant Cohort Study. Clin Infect Dis 2021; 71:e159-e169. [PMID: 31915816 PMCID: PMC7583409 DOI: 10.1093/cid/ciz1113] [Citation(s) in RCA: 141] [Impact Index Per Article: 47.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2019] [Accepted: 11/11/2019] [Indexed: 12/13/2022] Open
Abstract
Background The burden and timeline of posttransplant infections are not comprehensively documented in the current era of immunosuppression and prophylaxis. Methods In this prospective study nested within the Swiss Transplant Cohort Study (STCS), all clinically relevant infections were identified by transplant–infectious diseases physicians in persons receiving solid organ transplant (SOT) between May 2008 and December 2014 with ≥12 months of follow-up. Results Among 3541 SOT recipients, 2761 (1612 kidney, 577 liver, 286 lung, 213 heart, and 73 kidney-pancreas) had ≥12 months of follow-up; 1520 patients (55%) suffered 3520 infections during the first year posttransplantation. Burden and timelines of clinically relevant infections differed between transplantations. Bacteria were responsible for 2202 infections (63%) prevailing throughout the year, with a predominance of Enterobacteriaceae (54%) as urinary pathogens in heart, lung, and kidney transplant recipients, and as digestive tract pathogens in liver transplant recipients. Enterococcus spp (20%) occurred as urinary tract pathogens in kidney transplant recipients and as digestive tract pathogens in liver transplant recipients, and Pseudomonas aeruginosa (9%) in lung transplant recipients. Among 1039 viral infections, herpesviruses predominated (51%) in kidney, liver, and heart transplant recipients. Among 263 fungal infections, Candida spp (60%) prevailed as digestive tract pathogens in liver transplant recipients. Opportunistic pathogens, including Aspergillus fumigatus (1.4%) and cytomegalovirus (6%), were rare, scattering over 12 months across all SOT recipients. Conclusions In the current era of immunosuppression and prophylaxis, SOT recipients experience a high burden of infections throughout the first year posttransplantation, with rare opportunistic pathogens and a predominance of bacteria.
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Affiliation(s)
- Christian van Delden
- Transplant Infectious Diseases Unit, University Hospitals Geneva, Geneva, Switzerland
| | - Susanne Stampf
- Clinic for Transplantation Immunology and Nephrology (Swiss Transplant Cohort Study), University Hospital of Basel, Basel, Switzerland
| | - Hans H Hirsch
- Transplantation and Clinical Virology, Department of Biomedicine, University of Basel, Basel, Switzerland.,Infectious Diseases and Hospital Epidemiology, University Hospital Basel, Basel, Switzerland
| | - Oriol Manuel
- Infectious Diseases Service and Transplantation Center, University Hospital and University of Lausanne, Lausanne, Switzerland
| | - Pascal Meylan
- Institute of Microbiology and Infectious Diseases Service, University Hospital and Medical School, Lausanne, Switzerland
| | - Alexia Cusini
- Department of Infectious Diseases, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Cédric Hirzel
- Department of Infectious Diseases, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Nina Khanna
- Infectious Diseases and Hospital Epidemiology, University Hospital Basel, Basel, Switzerland
| | - Maja Weisser
- Infectious Diseases and Hospital Epidemiology, University Hospital Basel, Basel, Switzerland
| | - Christian Garzoni
- Department of Infectious Diseases, Bern University Hospital, University of Bern, Bern, Switzerland.,Clinic of Internal Medicine and Infectious Diseases, Clinica Luganese, Lugano, Switzerland
| | - Katja Boggian
- Division of Infectious Diseases and Hospital Epidemiology, Cantonal Hospital St Gallen, St Gallen, Switzerland
| | - Christoph Berger
- Division of Infectious Diseases and Hospital Epidemiology and Children's Research Center, University Children's Hospital, Zürich, Switzerland
| | - David Nadal
- Division of Infectious Diseases and Hospital Epidemiology and Children's Research Center, University Children's Hospital, Zürich, Switzerland
| | - Michael Koller
- Clinic for Transplantation Immunology and Nephrology (Swiss Transplant Cohort Study), University Hospital of Basel, Basel, Switzerland
| | - Ramon Saccilotto
- Clinic for Transplantation Immunology and Nephrology (Swiss Transplant Cohort Study), University Hospital of Basel, Basel, Switzerland
| | - Nicolas J Mueller
- Division of Infectious Diseases and Hospital Epidemiology, University Hospital Zurich, Zürich, Switzerland
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36
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Mahle RE, Suchindran S, Henao R, Steinbrink JM, Burke TW, McClain MT, Ginsburg GS, Woods CW, Tsalik EL. Validation of a host gene expression test for bacterial/viral discrimination in immunocompromised hosts. Clin Infect Dis 2021; 73:605-613. [PMID: 33462581 DOI: 10.1093/cid/ciab043] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2020] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND Host gene expression has emerged as a complementary strategy to pathogen detection tests for the discrimination of bacterial and viral infection. The impact of immunocompromise on host response tests remains unknown. We evaluated a host response test discriminating bacterial, viral, and non-infectious conditions in immunocompromised subjects. METHODS An 81-gene signature was measured using RT-PCR in subjects with immunocompromise (chemotherapy, solid organ transplant, immunomodulatory agents, AIDS) with bacterial infection, viral infection, or noninfectious illness. A regularized logistic regression model trained in immunocompetent subjects was used to estimate the likelihood of each class in immunocompromised subjects. RESULTS Accuracy in the 136-subject immunocompetent training cohort was 84.6% for bacterial vs. non-bacterial discrimination and 80.8% for viral vs. non-viral discrimination. Model validation in 134 immunocompromised subjects showed overall accuracy of 73.9% for bacterial infection (p=0.04 relative to immunocompetent subjects) and 75.4% for viral infection (p=0.30). A scheme reporting results by quartile improved test utility. The highest probability quartile ruled-in bacterial and viral infection with 91.4% and 84.0% specificity, respectively. The lowest probability quartile ruled-out infection with 90.1% and 96.4% sensitivity for bacterial and viral infection, respectively. Performance was independent of the type or number of immunocompromising conditions. CONCLUSION A host gene expression test discriminated bacterial, viral, and non-infectious etiologies at a lower overall accuracy in immunocompromised patients compared to immunocompetent patients, though this difference was only significant for bacterial infection classification. With modified interpretive criteria, a host response strategy may offer clinically useful diagnostic information for patients with immunocompromise.
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Affiliation(s)
- Rachael E Mahle
- Duke University School of Medicine, Durham, North Carolina, USA
| | - Sunil Suchindran
- Duke Center for Applied Genomics and Precision Medicine, Department of Medicine, Duke University School of Medicine, Durham, North Carolina, USA
| | - Ricardo Henao
- Duke Center for Applied Genomics and Precision Medicine, Department of Medicine, Duke University School of Medicine, Durham, North Carolina, USA.,Department of Electrical and Computer Engineering, Pratt School of Engineering, Duke University, Durham, North Carolina, USA
| | - Julie M Steinbrink
- Division of Infectious Diseases, Department of Medicine, Duke University School of Medicine, Durham, North Carolina, USA
| | - Thomas W Burke
- Duke Center for Applied Genomics and Precision Medicine, Department of Medicine, Duke University School of Medicine, Durham, North Carolina, USA
| | - Micah T McClain
- Duke Center for Applied Genomics and Precision Medicine, Department of Medicine, Duke University School of Medicine, Durham, North Carolina, USA.,Division of Infectious Diseases, Department of Medicine, Duke University School of Medicine, Durham, North Carolina, USA.,Medical Service, Durham VA Health Care System, Durham, North Carolina, USA
| | - Geoffrey S Ginsburg
- Duke Center for Applied Genomics and Precision Medicine, Department of Medicine, Duke University School of Medicine, Durham, North Carolina, USA
| | - Christopher W Woods
- Duke Center for Applied Genomics and Precision Medicine, Department of Medicine, Duke University School of Medicine, Durham, North Carolina, USA.,Division of Infectious Diseases, Department of Medicine, Duke University School of Medicine, Durham, North Carolina, USA.,Medical Service, Durham VA Health Care System, Durham, North Carolina, USA
| | - Ephraim L Tsalik
- Duke Center for Applied Genomics and Precision Medicine, Department of Medicine, Duke University School of Medicine, Durham, North Carolina, USA.,Division of Infectious Diseases, Department of Medicine, Duke University School of Medicine, Durham, North Carolina, USA.,Emergency Medicine Service, Durham VA Health Care System, Durham, North Carolina, USA
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Altaf M, Lineburg KE, Crooks P, Rehan S, Matthews KK, Neller MA, Ambalathingal GR, Sinha D, Grant M, Hopkins PMA, Chambers D, Khanna R, Smith C. Pretransplant Cytomegalovirus-Specific Cellular Immunity and Risk of Viral Reactivation Following Lung Transplantation: A Prospective Cohort Study. J Infect Dis 2020; 224:312-317. [DOI: 10.1093/infdis/jiaa750] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Accepted: 12/01/2020] [Indexed: 12/15/2022] Open
Abstract
Abstract
Cytomegalovirus (CMV) remains a significant burden in lung transplant recipients. Deficiencies in T-cell immunity posttransplant increase the risk of CMV-associated complications. However, it is not clear if underlying poor pretransplant immunity increases risk. To assess this, we recruited 39 prospective lung transplant patients and performed QuantiFERON-CMV on their peripheral blood. More than a third of prospective CMV-seropositive transplant recipients were CMV non-immune reactive (CMV-NIR) pretransplant. CMV-NIR status was associated with a significantly higher incidence of CMV reactivation posttransplant, demonstrating that dysfunctional CMV immunity in prospective lung transplant recipients is associated with an increased risk of viral reactivation posttransplant.
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Affiliation(s)
- Mohammed Altaf
- QIMR Berghofer Centre for Immunotherapy and Vaccine Development and Translational and Human Immunology Laboratory, Department of Immunology, QIMR Berghofer Medical Research Institute, Brisbane, Queensland, Australia
- School of Clinical Medicine, University of Queensland, Brisbane, Queensland, Australia
| | - Katie E Lineburg
- QIMR Berghofer Centre for Immunotherapy and Vaccine Development and Translational and Human Immunology Laboratory, Department of Immunology, QIMR Berghofer Medical Research Institute, Brisbane, Queensland, Australia
- School of Clinical Medicine, University of Queensland, Brisbane, Queensland, Australia
| | - Pauline Crooks
- QIMR Berghofer Centre for Immunotherapy and Vaccine Development and Translational and Human Immunology Laboratory, Department of Immunology, QIMR Berghofer Medical Research Institute, Brisbane, Queensland, Australia
| | - Sweera Rehan
- QIMR Berghofer Centre for Immunotherapy and Vaccine Development and Translational and Human Immunology Laboratory, Department of Immunology, QIMR Berghofer Medical Research Institute, Brisbane, Queensland, Australia
| | - Katherine K Matthews
- QIMR Berghofer Centre for Immunotherapy and Vaccine Development and Translational and Human Immunology Laboratory, Department of Immunology, QIMR Berghofer Medical Research Institute, Brisbane, Queensland, Australia
| | - Michelle A Neller
- QIMR Berghofer Centre for Immunotherapy and Vaccine Development and Translational and Human Immunology Laboratory, Department of Immunology, QIMR Berghofer Medical Research Institute, Brisbane, Queensland, Australia
| | - George R Ambalathingal
- QIMR Berghofer Centre for Immunotherapy and Vaccine Development and Translational and Human Immunology Laboratory, Department of Immunology, QIMR Berghofer Medical Research Institute, Brisbane, Queensland, Australia
| | - Debottam Sinha
- QIMR Berghofer Centre for Immunotherapy and Vaccine Development and Translational and Human Immunology Laboratory, Department of Immunology, QIMR Berghofer Medical Research Institute, Brisbane, Queensland, Australia
| | - Michelle Grant
- Queensland Lung Transplant Service, Prince Charles Hospital, Brisbane, Queensland, Australia
| | - Peter M A Hopkins
- School of Clinical Medicine, University of Queensland, Brisbane, Queensland, Australia
- Queensland Lung Transplant Service, Prince Charles Hospital, Brisbane, Queensland, Australia
| | - Daniel Chambers
- School of Clinical Medicine, University of Queensland, Brisbane, Queensland, Australia
- Queensland Lung Transplant Service, Prince Charles Hospital, Brisbane, Queensland, Australia
| | - Rajiv Khanna
- QIMR Berghofer Centre for Immunotherapy and Vaccine Development and Translational and Human Immunology Laboratory, Department of Immunology, QIMR Berghofer Medical Research Institute, Brisbane, Queensland, Australia
- School of Clinical Medicine, University of Queensland, Brisbane, Queensland, Australia
| | - Corey Smith
- QIMR Berghofer Centre for Immunotherapy and Vaccine Development and Translational and Human Immunology Laboratory, Department of Immunology, QIMR Berghofer Medical Research Institute, Brisbane, Queensland, Australia
- School of Clinical Medicine, University of Queensland, Brisbane, Queensland, Australia
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Kim MY, Brennan DC, Shah P. General Approach to the Clinical Care of Solid Organ Transplant Recipients with COVID-19 Infection: Management for Transplant Recipients. CURRENT TRANSPLANTATION REPORTS 2020; 7:366-378. [PMID: 33145146 PMCID: PMC7594940 DOI: 10.1007/s40472-020-00305-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/12/2020] [Indexed: 01/08/2023]
Abstract
PURPOSE OF REVIEW Insufficient knowledge about COVID-19 and the potential risks of COVID-19 are limiting organ transplantation in wait-listed candidates and deferring essential health care in solid organ transplant recipients. In this review, we expand the understanding and present an overview of the optimized management of COVID-19 in solid organ transplant recipients. RECENT FINDINGS Transplant recipients are at an increased risk of severe COVID-19. The unique characteristics of transplant recipients can make it more difficult to identify COVID-19. Based on the COVID-19 data to date and our experience, we present testing, management, and prevention methods for COVID-19. Comprehensive diagnostic tests should be performed to determine disease severity, phase of illness, and identify other comorbidities in transplant recipients diagnosed with COVID-19. Outpatients should receive education for preventative measures and optimal health care delivery minimizing potential infectious exposures. Multidisciplinary interventions should be provided to hospitalized transplant recipients for COVID-19 because of the complexity of caring for transplant recipients. SUMMARY Transplant recipients should strictly adhere to infection prevention measures. Understanding of the transplant specific pathophysiology and development of effective treatment strategies for COVID-19 should be prioritized.
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Affiliation(s)
- Min Young Kim
- Department of Internal Medicine, Johns Hopkins School of Medicine, Baltimore, MD USA
| | - Daniel C. Brennan
- Department of Internal Medicine, Johns Hopkins School of Medicine, Baltimore, MD USA
| | - Pali Shah
- Department of Internal Medicine, Johns Hopkins School of Medicine, Baltimore, MD USA
- Division of Pulmonary and Critical Care, Johns Hopkins University School of Medicine, Baltimore, MD 21205 USA
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Beyond Cytomegalovirus and Epstein-Barr Virus: a Review of Viruses Composing the Blood Virome of Solid Organ Transplant and Hematopoietic Stem Cell Transplant Recipients. Clin Microbiol Rev 2020; 33:33/4/e00027-20. [PMID: 32847820 DOI: 10.1128/cmr.00027-20] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Viral primary infections and reactivations are common complications in patients after solid organ transplantation (SOT) and hematopoietic stem cell transplantation (HSCT) and are associated with high morbidity and mortality. Among these patients, viral infections are frequently associated with viremia. Beyond the usual well-known viruses that are part of the routine clinical management of transplant recipients, numerous other viral signatures or genomes can be identified in the blood of these patients. The identification of novel viral species and variants by metagenomic next-generation sequencing has opened up a new field of investigation and new paradigms. Thus, there is a need to thoroughly describe the state of knowledge in this field with a review of all viral infections that should be scrutinized in high-risk populations. Here, we review the eukaryotic DNA and RNA viruses identified in blood, plasma, or serum samples of pediatric and adult SOT/HSCT recipients and the prevalence of their detection, with a particular focus on recently identified viruses and those for which their potential association with disease remains to be investigated, such as members of the Polyomaviridae, Anelloviridae, Flaviviridae, and Astroviridae families. Current knowledge of the clinical significance of these viral infections with associated viremia among transplant recipients is also discussed. To ensure a comprehensive description in these two populations, individuals described as healthy (mostly blood donors) are considered for comparative purposes. The list of viruses that should be on the clinicians' radar is certainly incomplete and will expand, but the challenge is to identify those of possible clinical significance.
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Wasnik AP, Aslam AA, Millet JD, Pandya A, Bude RO. Multimodality imaging of pancreas-kidney transplants. Clin Imaging 2020; 69:185-195. [PMID: 32866771 DOI: 10.1016/j.clinimag.2020.07.028] [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: 06/04/2020] [Revised: 07/08/2020] [Accepted: 07/27/2020] [Indexed: 10/23/2022]
Abstract
Simultaneous pancreas-kidney transplant remains a treatment option for patients with insulin-dependent diabetes mellitus type 1, aimed at restoring normoglycemia, alleviating insulin dependency, avoiding diabetic nephropathy, and thereby improving the quality of life. Imaging remains critical in the assessment of these transplant grafts. Ultrasound with Doppler remains the primary imaging modality for establishing baseline assessment of the graft as well as for evaluating vascular, parenchymal, and perigraft complications. Noncontrast MR imaging is preferred over non-contrast CT for evaluation of parenchymal or perigraft complications in patients with decreased renal function, although contrast-enhanced CT/MR imaging may be obtained following multidisciplinary consultation in cases with high clinical and laboratory suspicion for graft dysfunction. Catheter angiography is reserved primarily for therapeutic intervention in suspected or confirmed vascular complications. An understanding of the surgical techniques and imaging appearance of a normal graft is crucial to identify potential complications and direct timely management. This article provides an overview of surgical techniques, normal imaging appearance, as well as the spectrum of imaging findings and potential complications in pancreas-kidney transplants.
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Affiliation(s)
- Ashish P Wasnik
- Department of Radiology, University of Michigan-Michigan Medicine, 1500 E. Medical Center Dr., Ann Arbor, MI 48109, United States.
| | - Anum A Aslam
- Department of Radiology, University of Michigan-Michigan Medicine, 1500 E. Medical Center Dr., Ann Arbor, MI 48109, United States.
| | - John D Millet
- Department of Radiology, University of Michigan-Michigan Medicine, 1500 E. Medical Center Dr., Ann Arbor, MI 48109, United States.
| | - Amit Pandya
- Department of Radiology, University of Michigan-Michigan Medicine, 1500 E. Medical Center Dr., Ann Arbor, MI 48109, United States.
| | - Ronald O Bude
- Department of Radiology, University of Michigan-Michigan Medicine, 1500 E. Medical Center Dr., Ann Arbor, MI 48109, United States.
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Dashti-Khavidaki S, Mohammadi K, Khalili H, Abdollahi A. Pharmacotherapeutic considerations in solid organ transplant patients with COVID-19. Expert Opin Pharmacother 2020; 21:1813-1819. [DOI: 10.1080/14656566.2020.1790526] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
| | - Keyhan Mohammadi
- Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Hossein Khalili
- Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Azin Abdollahi
- Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
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Timsit JF, Ruppé E, Barbier F, Tabah A, Bassetti M. Bloodstream infections in critically ill patients: an expert statement. Intensive Care Med 2020; 46:266-284. [PMID: 32047941 PMCID: PMC7223992 DOI: 10.1007/s00134-020-05950-6] [Citation(s) in RCA: 159] [Impact Index Per Article: 39.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Accepted: 01/23/2020] [Indexed: 02/07/2023]
Abstract
Bloodstream infection (BSI) is defined by positive blood cultures in a patient with systemic signs of infection and may be either secondary to a documented source or primary—that is, without identified origin. Community-acquired BSIs in immunocompetent adults usually involve drug-susceptible bacteria, while healthcare-associated BSIs are frequently due to multidrug-resistant (MDR) strains. Early adequate antimicrobial therapy is a key to improve patient outcomes, especially in those with criteria for sepsis or septic shock, and should be based on guidelines and direct examination of available samples. Local epidemiology, suspected source, immune status, previous antimicrobial exposure, and documented colonization with MDR bacteria must be considered for the choice of first-line antimicrobials in healthcare-associated and hospital-acquired BSIs. Early genotypic or phenotypic tests are now available for bacterial identification and early detection of resistance mechanisms and may help, though their clinical impact warrants further investigations. Initial antimicrobial dosing should take into account the pharmacokinetic alterations commonly observed in ICU patients, with a loading dose in case of sepsis or septic shock. Initial antimicrobial combination attempting to increase the antimicrobial spectrum should be discussed when MDR bacteria are suspected and/or in the most severely ill patients. Source identification and control should be performed as soon as the hemodynamic status is stabilized. De-escalation from a broad-spectrum to a narrow-spectrum antimicrobial may reduce antibiotic selection pressure without negative impact on mortality. The duration of therapy is usually 5–8 days though longer durations may be discussed depending on the underlying illness and the source of infection. This narrative review covers the epidemiology, diagnostic workflow and therapeutic aspects of BSI in ICU patients and proposed up-to-date expert statements.
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Affiliation(s)
- Jean-François Timsit
- AP-HP, Hôpital Bichat, Medical and Infectious Diseases ICU, 75018, Paris, France. .,Université de Paris, IAME, INSERM, 75018, Paris, France.
| | - Etienne Ruppé
- Université de Paris, IAME, INSERM, 75018, Paris, France.,AP-HP, Hôpital Bichat, Bacteriology Laboratory, 75018, Paris, France
| | | | - Alexis Tabah
- ICU, Redcliffe Hospital, Faculty of Medicine, University of Queensland, Brisbane, QLD, Australia
| | - Matteo Bassetti
- Infectious Diseases Clinic, Department of Health Sciences, University of Genoa, Genoa and Hospital Policlinico San Martino-IRCCS, Genoa, Italy
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Dubler S, Lenz M, Zimmermann S, Richter DC, Weiss KH, Mehrabi A, Mieth M, Bruckner T, Weigand MA, Brenner T, Heininger A. Does vancomycin resistance increase mortality in Enterococcus faecium bacteraemia after orthotopic liver transplantation? A retrospective study. Antimicrob Resist Infect Control 2020; 9:22. [PMID: 32005223 PMCID: PMC6995054 DOI: 10.1186/s13756-020-0683-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Accepted: 01/22/2020] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND The relevance of vancomycin resistance in enterococcal blood stream infections (BSI) is still controversial. Aim of this study was to outline the effect of vancomycin resistance of Enterococcus faecium on the outcome of patients with BSI after orthotopic liver transplantation (OLT). METHODS The outcome of OLT recipients developing BSI with vancomycin-resistant (VRE) versus vancomycin-susceptible Enterococcus faecium (VSE) was compared based on data extraction from medical records. Multivariate regression analyses identified risk factors for mortality and unfavourable outcomes (defined as death or prolonged intensive care stay) after 30 and 90 days. RESULTS Mortality was similar between VRE- (n = 39) and VSE- (n = 138) group after 30 (p = 0.44) or 90 days (p = 0.39). Comparable results occurred regarding unfavourable outcomes. Mean SOFANon-GCS score during the 7-day-period before BSI onset was the independent predictor for mortality at both timepoints (HR 1.32; CI 1.14-1.53; and HR 1.18; CI 1.08-1.28). Timely appropriate antibiotic therapy, recent ICU stay and vancomycin resistance did not affect outcome after adjusting for confounders. CONCLUSION Vancomycin resistance did not influence outcome among patients with Enterococcus faecium bacteraemia after OLT. Only underlying severity of disease predicted poor outcome among this homogenous patient population. TRIAL REGISTRATION This study was registered at the German clinical trials register (DRKS-ID: DRKS00013285).
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Affiliation(s)
- S Dubler
- Department of Anaesthesiology, Heidelberg University Hospital, Im Neuenheimer Feld 110, D-69120, Heidelberg, Germany.
| | - M Lenz
- Department of Anaesthesiology, Heidelberg University Hospital, Im Neuenheimer Feld 110, D-69120, Heidelberg, Germany.,Department of Anaesthesiology, Intensive Care and Emergency Medicine, Asklepios Clinics Hamburg, AK Wandsbek, Hamburg, Germany
| | - S Zimmermann
- Department of Infectious Diseases, Medical Microbiology and Hygiene, Division Bacteriology, Heidelberg University Hospital, Heidelberg, Germany
| | - D C Richter
- Department of Anaesthesiology, Heidelberg University Hospital, Im Neuenheimer Feld 110, D-69120, Heidelberg, Germany
| | - K H Weiss
- Department of Internal Medicine, Heidelberg University Hospital, Heidelberg, Germany
| | - A Mehrabi
- Department of Visceral and Transplant Surgery, Heidelberg University Hospital, Heidelberg, Germany
| | - M Mieth
- Department of Visceral and Transplant Surgery, Heidelberg University Hospital, Heidelberg, Germany
| | - T Bruckner
- Institute for Medical Biometry and Informatics, University of Heidelberg, Heidelberg, Germany
| | - M A Weigand
- Department of Anaesthesiology, Heidelberg University Hospital, Im Neuenheimer Feld 110, D-69120, Heidelberg, Germany
| | - T Brenner
- Department of Anaesthesiology, Heidelberg University Hospital, Im Neuenheimer Feld 110, D-69120, Heidelberg, Germany
| | - A Heininger
- Division Hospital and Environmental Hygiene Department of Infectious Diseases, Medical Microbiology and Hygiene, Heidelberg University Hospital, Heidelberg, Germany
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