{"title":"Emergent Total Gastrectomy for Gas Gangrene of the Stomach due to Clostridium butyricum After Living Donor Liver Transplantation.","authors":"Kenei Furukawa, Tomohiko Taniai, Toru Ikegami","doi":"10.1111/tid.70083","DOIUrl":"https://doi.org/10.1111/tid.70083","url":null,"abstract":"","PeriodicalId":23318,"journal":{"name":"Transplant Infectious Disease","volume":" ","pages":"e70083"},"PeriodicalIF":2.6,"publicationDate":"2025-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144660367","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Estela Giménez, Irene García Cadenas, José Luis Piñana, Eliseo Albert, Lourdes Vázquez, Alejandro Avendaño, Mónica Cabrero, Albert Esquirol, Rodrigo Martino, Javier López-Jiménez, María Ángeles Cuesta, Karem Humala, Sara Villar, Montserrat Rovira, Inmaculada Heras, Teresa Zudaire, Ignacio Arroyo, Amaya Zabalza, Beatriz Aguado, Carlos Solano, David Navarro
{"title":"Cytomegalovirus DNA Doubling Time for Early Identification of Clinically Significant Infection Episodes in Allogeneic Hematopoietic Stem Cell Transplant Recipients Undergoing Primary Letermovir Prophylaxis: A Multicenter Study.","authors":"Estela Giménez, Irene García Cadenas, José Luis Piñana, Eliseo Albert, Lourdes Vázquez, Alejandro Avendaño, Mónica Cabrero, Albert Esquirol, Rodrigo Martino, Javier López-Jiménez, María Ángeles Cuesta, Karem Humala, Sara Villar, Montserrat Rovira, Inmaculada Heras, Teresa Zudaire, Ignacio Arroyo, Amaya Zabalza, Beatriz Aguado, Carlos Solano, David Navarro","doi":"10.1111/tid.70080","DOIUrl":"https://doi.org/10.1111/tid.70080","url":null,"abstract":"<p><strong>Background: </strong>Letermovir (LMV) prophylaxis currently represents the first-line strategy for preventing clinically significant cytomegalovirus (CMV) infection (CsCMVi) in CMV-seropositive recipients of allogeneic hematopoietic stem cell transplantation (allo-HSCT). A wide variety of CMV DNA thresholds for LMV interruption and preemptive antiviral therapy (PET) inception are in place across transplantation centers.</p><p><strong>Methods: </strong>We evaluated the potential of CMV DNA doubling time (dt) in plasma to distinguish between CsCMVi and abortive CMV infection in allo-HSCT recipients on primary LMV prophylaxis. Data from the Spanish Hematopoietic Transplantation and Cell Therapy Group multicenter registry included 296 allo-HSCT patients receiving LMV prophylaxis. Participating centers used a plasma CMV DNA threshold of ≥1000 IU/mL for initiating PET. The CMV DNA dt was calculated from the first two or three positive polymerase chain reaction (PCR) results based on pre-established criteria.</p><p><strong>Results: </strong>CMV DNAemia developed in 64 recipients (21.6%) with a total of 88 episodes, of which CsCMVi occurred in 9 recipients (3.04%) and included 10 episodes (one patient had confirmed CMV gastrointestinal disease). A non-calculable CMV DNA dt had a negative predictive value of 94% for CsCMVi. For initial episodes with calculable CMV DNA dts (4/7 CsCMVi and 8/57 no-CsCMVi), a threshold of >2.35 days had a specificity of 100% for ruling out CsCMVi.</p><p><strong>Conclusion: </strong>CMV DNA dt could optimize CMV infection management in allo-HSCT patients under LMV prophylaxis, independent of the PCR platform used.</p>","PeriodicalId":23318,"journal":{"name":"Transplant Infectious Disease","volume":" ","pages":"e70080"},"PeriodicalIF":2.6,"publicationDate":"2025-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144660366","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Prognostic Impact of Cytomegalovirus Reactivation After Transplantation From Cord Blood Compared to Other Donor Sources in Patients With Adult T-Cell Leukemia/Lymphoma in the Pre-Letermovir Era.","authors":"Takuya Fukushima, Hidehiro Itonaga, Hikaru Sakamoto, Wataru Takeda, Masahito Tokunaga, Takeharu Kato, Takuro Kuriyama, Toshiro Kawakita, Machiko Fujioka, Yasuhiko Miyazaki, Naoyuki Uchida, Yasuo Mori, Hirohisa Nakamae, Masao Ogata, Kazunori Imada, Makoto Onizuka, Kazuho Morichika, Yoshinobu Kanda, Takahiro Fukuda, Yoshiko Atsuta, Shigeo Fuji, Makoto Yoshimitsu","doi":"10.1111/tid.70070","DOIUrl":"https://doi.org/10.1111/tid.70070","url":null,"abstract":"<p><strong>Background: </strong>Cytomegalovirus reactivation (CMV-react) is an indicator for the worse non-relapse mortality (NRM) and overall survival (OS) after allogeneic hematopoietic stem cell transplantation using HLA-matched related donor (MRD) and unrelated donor (URD) for adult T-cell leukemia/lymphoma (ATL). However, it remains unclear whether CMV-react correlates with outcomes after unrelated cord blood (U-CB) transplantation.</p><p><strong>Methods: </strong>We conducted a retrospective nationwide study to evaluate the impact of CMV-react on the outcomes after posttransplant 100 days. Data were collected from 205, 461, and 268 patients who used MRD, URD, and U-CB, respectively, between 2001 and 2022 and survived without relapse for over 100 days after transplantation.</p><p><strong>Results: </strong>In multivariate analyses, CMV-react correlated with worse OS in the MRD (hazard ratio [HR], 1.56; 95% confidence interval [CI], 1.02-2.39; p = 0.04) and URD groups (HR, 1.45; 95% CI, 1.00-2.09; p = 0.05), but not in the U-CB group (HR, 1.34; 95% CI, 0.88-2.03; p = 0.2). CMV-react correlated with higher NRM in the MRD (HR, 1.79; 95% CI, 1.01-3.16; p = 0.05) and URD groups (HR, 1.68; 95% CI, 1.01-2.82; p = 0.05), but not in the U-CB group (HR, 1.16; 95% CI, 0.62-2.19; p = 0.6). CMV-react did not correlate with the incidence of relapse in any group.</p><p><strong>Conclusion: </strong>CMV-react was not associated with the outcomes in the U-CB group, while CMV-react correlates with worse OS and NRM in the MRD and URD groups, indicating the need for a more intensive strategy for late-phase complications in U-CB transplantation for ATL with and without CMV-react.</p>","PeriodicalId":23318,"journal":{"name":"Transplant Infectious Disease","volume":" ","pages":"e70070"},"PeriodicalIF":2.6,"publicationDate":"2025-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144584905","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jeremy A W Gold, Kaitlin Benedict, Elizabeth Sajewski, Tom Chiller, Meghan Lyman, Mitsuru Toda, Jessica S Little, Luis Ostrosky-Zeichner
{"title":"Invasive Fungal Disease in Solid Organ and Hematopoietic Cell Transplant Recipients, United States.","authors":"Jeremy A W Gold, Kaitlin Benedict, Elizabeth Sajewski, Tom Chiller, Meghan Lyman, Mitsuru Toda, Jessica S Little, Luis Ostrosky-Zeichner","doi":"10.1111/tid.70077","DOIUrl":"10.1111/tid.70077","url":null,"abstract":"<p><strong>Background: </strong>Updated benchmark data on invasive fungal disease (IFD) in solid organ transplantation (SOT) and hematopoietic cell transplantation (HCT) recipients are necessary to increase clinical recognition and inform treatment and prevention strategies. We estimated IFD incidence and potential risk factors in transplant recipients in a large US commercial health insurance database.</p><p><strong>Methods: </strong>We observed patients who received SOT or HCT during 2018-2022 until IFD development, disenrollment, or database end date (July 31, 2023). We calculated incidence (per 1000 person-years) and time to IFD development, comparing demographic features and underlying conditions for IFD versus non-IFD patients.</p><p><strong>Results: </strong>Overall, 9143 patients received an SOT (5667 kidney, 2025 liver, 759 heart, 650 lung, 39 pancreas, 3 intestine), and 5693 patients received an HCT (3519 autologous, 2114 allogeneic, 60 unspecified type). Among SOT patients, 360 developed an IFD (incidence: 21.0 [per 1000 person-years]). Mold infections had the highest incidence (7.1), followed by unspecified mycoses (3.9) and endemic mycoses (3.3). Among HCT patients, 292 developed an IFD (incidence: 28.5), with higher incidence among allogeneic (58.4) versus autologous (12.8) HCT recipients; among all HCT recipients, unspecified mycoses had the highest incidence (8.3), then pneumocystosis (7.6), and mold infections (6.7). Median time to IFD was 173.5 days for SOT recipients and 197.5 days for HCT recipients. IFD risk varied substantially by transplant type, region, and certain underlying conditions.</p><p><strong>Conclusion: </strong>Our results suggest that IFDs remain an important cause of infection among SOT and HCT recipients, particularly later in the posttransplant period, and highlight the need for prevention strategies.</p>","PeriodicalId":23318,"journal":{"name":"Transplant Infectious Disease","volume":" ","pages":"e70077"},"PeriodicalIF":2.6,"publicationDate":"2025-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12289323/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144584977","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Erdem Bektas, Aysenur Yilmaz, Cevat Ilteris Kikili, Kanan Nuriyev, Zulal Istemihan, Ibrahim Volkan Senkal, Ziya Imanov, Bilger Cavus, Asli Cifcibasi Ormeci, Filiz Akyuz, Kadir Demir, Selman Fatih Besisik, Sabahattin Kaymakoglu
{"title":"Real World Efficacy and Safety of Switching From Tenofovir Disoproxil Fumarate to Tenofovir Alafenamide in Liver Transplant Recipients.","authors":"Erdem Bektas, Aysenur Yilmaz, Cevat Ilteris Kikili, Kanan Nuriyev, Zulal Istemihan, Ibrahim Volkan Senkal, Ziya Imanov, Bilger Cavus, Asli Cifcibasi Ormeci, Filiz Akyuz, Kadir Demir, Selman Fatih Besisik, Sabahattin Kaymakoglu","doi":"10.1111/tid.70068","DOIUrl":"https://doi.org/10.1111/tid.70068","url":null,"abstract":"<p><strong>Background: </strong>The efficacy and safety of nucleos(t)ide analogs is currently a critical issue in the treatment of hepatitis B virus infection. We aimed to investigate the long-term efficacy and safety profile of tenofovir alafenamide (TAF) treatment in the liver transplant recipients (LTRs).</p><p><strong>Methods: </strong>This retrospective study was conducted with 72 LTRs who received TAF as sequential therapy after tenofovir disoproxil fumarate (TDF). The renal, metabolic outcomes, and efficacy of TAF were evaluated. In addition, some parameters were evaluated separately according to the use of calcineurin inhibitors.</p><p><strong>Results: </strong>Following TAF treatment, median serum phosphorus levels and estimated glomerular filtration rate (eGFR) increased significantly in the overall cohort (from 2.4 to 2.85 mg/dL [p < 0.001]; from 66 to 74 mL/min/1.73 m<sup>2</sup> [p = 0.028], respectively). These improvements were more pronounced in patients with baseline hypophosphatemia and reduced eGFR. However, no significant changes were observed in eGFR staging. A categorical worsening of lipid profile was noted based on the NCEP ATP-III criteria, with increases in some lipid parameters. No significant weight gain or increase in the incidence of posttransplant diabetes mellitus was observed. Antiviral efficacy was maintained following the switch from TDF to TAF. In addition, no significant changes in immunosuppressive drug dosing were required, and no adverse events related to TAF were reported.</p><p><strong>Conclusion: </strong>TAF was well-tolerated and effective in LTRs. The long-term benefits of TAF on hypophosphatemia, renal function, and effective viral suppression were demonstrated. The patients with an increased risk of cardiovascular disease should receive more intensive monitoring for changes in their lipid profile.</p>","PeriodicalId":23318,"journal":{"name":"Transplant Infectious Disease","volume":" ","pages":"e70068"},"PeriodicalIF":2.6,"publicationDate":"2025-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144555062","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Brennan Collis, Karen Urbancic, Jack Whitelaw, Gemma Reynolds, Sara Vogrin, Hossein Jahanabadi, Dinesh Pandey, Marie Sinclair, Avik Majumdar, Adam Testro, Jason A Trubiano, Olivia C Smibert
{"title":"Outcomes of Invasive Aspergillosis in Liver Transplant Recipients From an Institution Using Targeted Antifungal Prophylaxis and an Antifungal Stewardship Program.","authors":"Brennan Collis, Karen Urbancic, Jack Whitelaw, Gemma Reynolds, Sara Vogrin, Hossein Jahanabadi, Dinesh Pandey, Marie Sinclair, Avik Majumdar, Adam Testro, Jason A Trubiano, Olivia C Smibert","doi":"10.1111/tid.70046","DOIUrl":"10.1111/tid.70046","url":null,"abstract":"<p><strong>Background: </strong>Recent evidence suggests liver transplant recipients (LiTRs) with invasive aspergillosis (IA) have lower rates of dissemination and mortality compared to historical data. However, contemporary data from other centers remain scarce. We aimed to evaluate modern IA outcomes at our institution, where targeted perioperative echinocandin prophylaxis and an active antifungal stewardship program (AFSP) have been implemented.</p><p><strong>Methods: </strong>This is a single-center retrospective analysis of patients who underwent liver transplantation between January 1, 2017 and June 30, 2022. During the study period, targeted anidulafungin perioperative prophylaxis was administered to patients considered high-risk for invasive fungal infection (IFI), and a multidisciplinary AFSP assisted with IFI diagnosis and management. Patients with proven and probable IA diagnosed post-operatively were identified using internationally accepted definitions. The primary outcomes were IA dissemination and 1-year all-cause mortality rates. Data were extracted from the electronic medical record and descriptive summary statistics were performed.</p><p><strong>Results: </strong>Six patients (6/377, 1.6%) met the inclusion criteria. Patients with IA were significantly more likely to be colonized with multidrug-resistant Gram-negative organisms compared to those without IA (50.0% vs. 12.1%, p = 0.006). The median time to IA diagnosis was 22 days post-transplant (IQR 5-109). No cases of dissemination were observed. One-year all-cause mortality was 16.7%.</p><p><strong>Conclusion: </strong>Consistent with contemporary data, LiTRs had lower IA dissemination and mortality rates compared to earlier studies. These improved outcomes likely reflect a combination of modern advancements in liver transplantation, and we highlight two potentially modifiable interventions; targeted echinocandin prophylaxis and an AFSP. Further studies are needed to support their broader implementation.</p>","PeriodicalId":23318,"journal":{"name":"Transplant Infectious Disease","volume":" ","pages":"e70046"},"PeriodicalIF":2.6,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144029045","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Marko Novakovic, Daryl Nnani, Enklajd Marsela, Sasa Vukelic, Yogita Rochlani, Omar Saeed, Shivank Madan, Daniel Sims, Jooyoung Shin, Sandhya Murthy, Abdulhamid Bazarbachi, Patricia Chavez, Christiana Gjelaj, Ulrich Jorde, Snehal R Patel
{"title":"Does Switching From Trimethoprim/Sulfamethoxazole to Atovaquone Result in Less Hyperkalemia? A Single-Center Retrospective Analysis in Heart Transplant Patients.","authors":"Marko Novakovic, Daryl Nnani, Enklajd Marsela, Sasa Vukelic, Yogita Rochlani, Omar Saeed, Shivank Madan, Daniel Sims, Jooyoung Shin, Sandhya Murthy, Abdulhamid Bazarbachi, Patricia Chavez, Christiana Gjelaj, Ulrich Jorde, Snehal R Patel","doi":"10.1111/tid.70043","DOIUrl":"10.1111/tid.70043","url":null,"abstract":"<p><strong>Background: </strong>Trimethoprim/sulfamethoxazole (TMP/SMX) is commonly used after orthotopic heart transplant (OHT) for opportunistic infection (OI) prophylaxis, but its contribution to hyperkalemia is uncertain. Whether switching to atovaquone (ATQ), which has a narrower antimicrobial spectrum, affects infection risk and improves hyperkalemia has not been investigated. This study evaluated whether transitioning from TMP/SMX to ATQ in the setting of post-OHT hyperkalemia is beneficial in lowering risk of recurrent hyperkalemia while maintaining OI prophylaxis efficacy.</p><p><strong>Methods: </strong>A single-center retrospective review of OHT patients (January 2011-April 2022) compared those maintained on TMP/SMX with those switched to ATQ due to side effects, specifically hyperkalemia. The primary endpoint was the resolution of hyperkalemia, and the secondary endpoint was the combined infection rate.</p><p><strong>Results: </strong>Among 321 OHT recipients, 76% were switched to ATQ. Patients switched to ATQ had higher rates of severe and recurrent hyperkalemia and experienced numerically higher overall infection rates compared to TMP/SMX patients (27% vs. 52%; p < 0.001). However, in a Poisson regression model adjusted for immortal time bias, the incidence rate ratio (IRR) for infections with ATQ versus TMP/SMX was 1.32 (95% CI: 0.93-1.86; p = 0.119). Multivariable analyses excluding chronic kidney disease patients confirmed TMP/SMX's association with lower hyperkalemia rates (initial/recurrent). Age and diabetes independently predicted initial hyperkalemia.</p><p><strong>Conclusions: </strong>Transitioning from TMP/SMX to ATQ did not decrease hyperkalemia rates and was associated with a numerically higher incidence of infections, though this difference was not statistically significant. Hyperkalemia is likely multifactorial and often unresolved by switching from TMP/SMX.</p>","PeriodicalId":23318,"journal":{"name":"Transplant Infectious Disease","volume":" ","pages":"e70043"},"PeriodicalIF":2.6,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144050000","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Effect of Antibiotics With Anaerobic Coverage on Graft-Versus-Host Disease in Patients Undergoing Allogeneic Hematopoietic Stem Cell Transplantation: A Systematic Review and Meta-Analysis.","authors":"Hiroshi Ito, Yui Okamura, Yuna Tomura, Jura Oshida, Minori Fujita, Daiki Kobayashi","doi":"10.1111/tid.70049","DOIUrl":"10.1111/tid.70049","url":null,"abstract":"<p><strong>Background: </strong>Broad-spectrum antibiotics are standard for febrile neutropenia (FN) in allogeneic hematopoietic stem cell transplantation (HSCT) but may disrupt gut microbiota, increasing the risk of graft-versus-host disease (GVHD). However, current evidence on the effects of anaerobic versus limited anaerobic antibiotic coverage on GVHD-related outcomes remains inconclusive.</p><p><strong>Methods: </strong>We systematically searched for studies assessing overall survival, acute GVHD incidence, and GVHD-related mortality in patients with allogeneic HSCT receiving antibiotics with anaerobic versus limited anaerobic coverage. A random-effects meta-analysis calculated risk ratios (RRs) and 95% confidence intervals (CIs) after assessing bias risk.</p><p><strong>Results: </strong>Six of the 323 screened studies met the inclusion criteria, encompassing 2169 patients: five studies included adult populations, and one included a pediatric population. Meta-analysis revealed no significant difference in 1-year overall survival between the anaerobic and the limited anaerobic coverage groups (RR: 1.01; 95% CI: 0.92-1.12). Acute GVHD incidence was significantly higher in the anaerobic coverage group than in the limited anaerobic coverage group (RR: 1.33; 95% CI: 1.17-1.51). GVHD-related mortality tended to be higher in the anaerobic coverage group than in the limited coverage group (RR: 1.65; 95% CI: 0.94-2.91). Of the six studies, three had a high risk of bias. Moderate heterogeneity was observed between citations regarding GVHD-related mortality (I<sup>2</sup> = 63%).</p><p><strong>Conclusion: </strong>Antibiotics with anaerobic coverage appear to increase acute GVHD incidence in patients who received an allogeneic HSCT compared to antibiotics with limited anaerobic coverage. However, the strength of this conclusion is limited by the quality of available evidence. Further well-designed research is necessary to clarify the impact of anaerobic antibiotic coverage on GVHD-related outcomes.</p>","PeriodicalId":23318,"journal":{"name":"Transplant Infectious Disease","volume":" ","pages":"e70049"},"PeriodicalIF":2.6,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12416444/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144055285","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}