Kaylee E Caniff, Chloe Judd, Kristen Lucas, Sandra Goro, Caroline Orzol, Mirna Eshaya, Mohammed Al Musawa, Michael P Veve, Michael J Rybak
{"title":"Heartfelt Impact: A Descriptive Analysis of Ceftaroline-Containing Regimens in Endocarditis due to Methicillin-Resistant Staphylococcus aureus.","authors":"Kaylee E Caniff, Chloe Judd, Kristen Lucas, Sandra Goro, Caroline Orzol, Mirna Eshaya, Mohammed Al Musawa, Michael P Veve, Michael J Rybak","doi":"10.1007/s40121-024-01068-0","DOIUrl":"https://doi.org/10.1007/s40121-024-01068-0","url":null,"abstract":"<p><strong>Introduction: </strong>Infective endocarditis (IE) due to methicillin-resistant Staphylococcus aureus (MRSA) is characterized by frequent treatment failure to first-line agents and high mortality, necessitating use of alternative management strategies. Ceftaroline fosamil (CPT) is a cephalosporin antibiotic with activity against MRSA but without regulatory approval for the indication of IE. This study describes clinical experience with CPT-based regimens utilized in MRSA-IE.</p><p><strong>Methods: </strong>This is a retrospective, observational, descriptive analysis of patients from two major urban medical centers in Detroit, Michigan from 2011 to 2023. Included adult patients (≥ 18 years) had ≥ 1 positive blood culture for MRSA, met definitive clinical criteria for IE, and received CPT for ≥ 72 h. The primary outcome was treatment failure, defined as a composite of 30-day all-cause mortality from index culture or failure to improve or resolve infectious signs/symptoms after CPT initiation.</p><p><strong>Results: </strong>Seventy patients were included. The median (interquartile range [IQR]) age was 51 (34-63) years and 45.7% were male. Persons with injection drug use (PWID) made up 55.7% of the cohort and right-sided IE was the most prevalent subtype (50.0%). CPT was frequently employed second-line or later, often in combination with vancomycin (10.0%) or daptomycin (72.9%). Overall, 31.4% experienced treatment failure and 30-day all-cause mortality occurred in 15.7%.</p><p><strong>Conclusions: </strong>These findings illustrate the challenges posed by MRSA-IE, including frequent treatment failures, and highlight the utilization of CPT as salvage therapy. Comparative studies are needed to more clearly define its role in MRSA-IE.</p>","PeriodicalId":13592,"journal":{"name":"Infectious Diseases and Therapy","volume":null,"pages":null},"PeriodicalIF":4.7,"publicationDate":"2024-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142564402","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Kira Zhi Hua Lai, Stuart Greenstein, Rajesh Govindasamy, Jaya Paranilam, Joseph Brown, Samantha Kimball-Carroll
{"title":"COVID-19 Vaccination Recommendations for Immunocompromised Patient Populations: Delphi Panel and Consensus Statement Generation in the United States.","authors":"Kira Zhi Hua Lai, Stuart Greenstein, Rajesh Govindasamy, Jaya Paranilam, Joseph Brown, Samantha Kimball-Carroll","doi":"10.1007/s40121-024-01052-8","DOIUrl":"10.1007/s40121-024-01052-8","url":null,"abstract":"<p><strong>Introduction: </strong>The United States Advisory Committee on Immunization Practices (ACIP) and the Centers for Disease Control (CDC) recommend COVID-19 vaccines for all immunocompromised individuals. Certain disease groups are at increased risk of comorbidity and death for which disease-specific recommendations should be considered. The objective of the Delphi panel of experts was to summarize expert consensus on COVID-19 vaccinations for patients with rheumatologic disease, renal disease, hematologic malignancy and solid organ transplant (SOT) in the US.</p><p><strong>Methods: </strong>A two-stage Delphi panel method was employed, starting with qualitative interviews with key opinion leaders (KOLs) in the four disease areas (n = 4 KOLs, n = 16 total) followed by three rounds of iterative revision of disease-specific COVID-19 vaccine recommendations. Final consensus was rated after the third round. Statements addressed primary and booster dosing (e.g., number and frequency) and other considerations such as vaccine type or heterologous messenger ribonucleic acid (mRNA) vaccination. Following the Delphi Panel, an online survey was conducted to assess physician agreement within the disease areas (n = 50 each, n = 200 total) with the consensus statements.</p><p><strong>Results: </strong>Moderate to strong consensus was achieved for all primary series vaccination statements across disease groups, except one in hematology. Similarly, moderate to strong consensus was achieved for all booster series statements in all disease areas. However, statements on antibody titer measurements for re-vaccination considerations and higher dosages for immunocompromised patients did not reach agreement. Overall, approximately 62%-96% of physicians strongly agreed with the primary and booster vaccine recommendations. However, low agreement (29%-69%) was found among physicians for time interval between disease-specific treatment and vaccination, recommendations for mRNA vaccines, heterologous mRNA vaccination, antibody titer measurement and higher vaccine dosage for immunocompromised groups.</p><p><strong>Conclusion: </strong>Consensus was achieved for disease-specific COVID-19 vaccine recommendations concerning primary and booster series vaccines and was generally well accepted by practicing physicians.</p>","PeriodicalId":13592,"journal":{"name":"Infectious Diseases and Therapy","volume":null,"pages":null},"PeriodicalIF":4.7,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11499552/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142464280","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Lucila Rey-Ares, Ahuva Averin, Nadia Zuccarino, Celina Guadalupe Vega, Emily Kutrieb, Erin Quinn, Mark Atwood, Derek Weycker, Amy W Law
{"title":"Cost-Effectiveness of Bivalent Respiratory Syncytial Virus Prefusion F (RSVpreF) Vaccine During Pregnancy for Prevention of Respiratory Syncytial Virus Among Infants in Argentina.","authors":"Lucila Rey-Ares, Ahuva Averin, Nadia Zuccarino, Celina Guadalupe Vega, Emily Kutrieb, Erin Quinn, Mark Atwood, Derek Weycker, Amy W Law","doi":"10.1007/s40121-024-01055-5","DOIUrl":"10.1007/s40121-024-01055-5","url":null,"abstract":"<p><strong>Introduction: </strong>Lower respiratory tract illness (LRTI) caused by respiratory syncytial virus (RSV) is common among young children in Argentina. Use of the currently available prophylactic agent is limited to children aged ≤ 2 years with selected high-risk conditions, and thus the majority of infants remain unprotected. We estimated the value-based price (VBP) of a novel RSVpreF vaccine for use among pregnant people for prevention of RSV-LRTI among infants during the first year of life.</p><p><strong>Methods: </strong>Clinical outcomes and economic costs of RSV-LRTI during infancy and expected impact of RSVpreF vaccination during pregnancy were projected using a population-based Markov-type cohort model. Model results-estimated on the basis of gestational age at birth, disease/fatality rates, and mother's vaccination status-include total numbers of RSV-LRTI cases, RSV-LRTI-related deaths, and associated costs. Base case analyses (RSVpreF vs. no vaccine) were conducted from the healthcare system perspective. Probabilistic sensitivity analyses (PSA; 1000 replications) were also conducted. Willingness-to-pay (WTP) was $10,636 per quality-adjusted life-year (QALY; i.e., 1 × 2021 gross domestic product [GDP] per capita) in base case analyses and PSA. Costs are reported in USD, estimated on the basis of the June 22, 2023 exchange rate.</p><p><strong>Results: </strong>Use of RSVpreF among 342,110 pregnant persons provided protection to 330,079 infants at birth. In total, RSVpreF prevented 3915 RSV hospitalizations, 6399 RSV cases requiring emergency department care, 6182 RSV cases requiring a physician office visit, and 67 disease-related deaths. Direct costs were projected to be reduced by $5.0 million. With 2061 QALYs gained and vaccine administration cost of $1.4 million, the VBP of RSVpreF was estimated to be $74.46 per dose. In PSA, mean VBP was $75.02 (95% confidence interval 54.24-97.30).</p><p><strong>Conclusions: </strong>RSVpreF among pregnant persons would significantly reduce the clinical and economic burden of RSV-LRTI among infants in Argentina and would be considered a cost-effective intervention up to a price of approximately $75.</p>","PeriodicalId":13592,"journal":{"name":"Infectious Diseases and Therapy","volume":null,"pages":null},"PeriodicalIF":4.7,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11499499/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142371747","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Mariana Haeberer, Martin Mengel, Rong Fan, Marina Toquero-Asensio, Alejandro Martin-Toribio, Qing Liu, Yongzheng He, Sonal Uppal, Silvia Rojo-Rello, Marta Domínguez-Gil, Cristina Hernán-García, Virginia Fernández-Espinilla, Jessica E Atwell, Javier Castrodeza Sanz, José M Eiros, Ivan Sanz-Muñoz
{"title":"Respiratory Syncytial Virus Risk Profile in Hospitalized Infants and Comparison with Influenza and COVID-19 Controls in Valladolid, Spain, 2010-2022.","authors":"Mariana Haeberer, Martin Mengel, Rong Fan, Marina Toquero-Asensio, Alejandro Martin-Toribio, Qing Liu, Yongzheng He, Sonal Uppal, Silvia Rojo-Rello, Marta Domínguez-Gil, Cristina Hernán-García, Virginia Fernández-Espinilla, Jessica E Atwell, Javier Castrodeza Sanz, José M Eiros, Ivan Sanz-Muñoz","doi":"10.1007/s40121-024-01058-2","DOIUrl":"10.1007/s40121-024-01058-2","url":null,"abstract":"<p><strong>Introduction: </strong>We aimed to describe the risk profile of RSV infections among children aged ≤ 24 months in Valladolid from January 2010 to August 2022 and to compare them with influenza and COVID-19 controls.</p><p><strong>Methods: </strong>We conducted a retrospective cohort study of all laboratory-confirmed RSV, influenza, and COVID-19 infections. We analyzed risk factors for RSV hospitalization and severity (length-of-stay ≥ 8 days, intensive-care-unit admission, in-hospital death or readmission < 30 days) and compared severity between hospitalized RSV patients vs. influenza and COVID-19 controls using multivariable logistic regression models.</p><p><strong>Results: </strong>We included 1507 patients with RSV (1274 inpatient), 32 with influenza, and 52 COVID-19 controls. Hospitalized RSV (mean age 5.3 months) and COVID-19 (4 months) were younger than influenza (9.1 months) patients. Sixteen percent of patients had RSV within the first month of life. Most infants did not have comorbidities (74% RSV, 56% influenza, and 69% COVID-19). Forty-one percent of patients with RSV and influenza were coinfected vs. 27% COVID-19 (p = 0.04). Among RSV, hospitalization risk factors were prematurity (adjusted OR 3.11 [95% CI 1.66, 4.44]) and coinfection (2.03 [1.45, 2.85]). Risks for higher severity were maternal smoking (1.89 [1.07, 3.33]), prematurity (2.31 [1.59, 3.34]), chronic lung disease (2.20 [1.06, 4.58]), neurodevelopmental condition (4.28 [2.10, 8.73]), and coinfection (2.67 [2.09, 3.40]). Breastfeeding was protective against hospitalization (0.87 [0.80, 0.95]) and severity (0.81 [0.74, 0.88]), while complete vaccination schedule was protective against severity (0.51 [0.27, 0.97]). RSV had 2.47 (1.03, 5.96) higher risk of experiencing any severe outcome compared to influenza and did not show significant differences vs. COVID-19.</p><p><strong>Conclusions: </strong>RSV hospitalizations were more frequent and severe than influenza, while severity was comparable to the early pandemic COVID-19. Currently, both influenza and COVID-19 vaccines are included in the maternal and childhood Spanish immunization schedule between the ages of 6 and 59 months. RSV monoclonal antibody is recommended for ≤ 6 months but a third of patients were aged 6-24 months. Maternal RSV vaccination can protect their children directly from birth and indirectly through breastfeeding.</p>","PeriodicalId":13592,"journal":{"name":"Infectious Diseases and Therapy","volume":null,"pages":null},"PeriodicalIF":4.7,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11499554/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142464284","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jaya Paranilam, Francesco Arcioni, Antonio Franco, Kira Zhi Hua Lai, Joseph Brown, Samantha Kimball-Carroll
{"title":"Delphi Panel Consensus Statement Generation: COVID-19 Vaccination Recommendations for Immunocompromised Populations in the European Union.","authors":"Jaya Paranilam, Francesco Arcioni, Antonio Franco, Kira Zhi Hua Lai, Joseph Brown, Samantha Kimball-Carroll","doi":"10.1007/s40121-024-01051-9","DOIUrl":"10.1007/s40121-024-01051-9","url":null,"abstract":"<p><strong>Introduction: </strong>The coronavirus disease 2019 (COVID-19) pandemic has caused unprecedented pressure on healthcare systems globally. The lack of quality guidelines on the management of COVID-19 in rheumatologic disease, renal disease, hematological malignancy, and solid organ transplant recipients has resulted in a wide variation in clinical practice.</p><p><strong>Methods: </strong>Using a Delphi process, a panel of 16 key opinion leaders developed clinical practice statements regarding vaccine recommendations in areas where standards are absent or limited. Agreement among practicing physicians with consensus statements was also assessed via an online physician survey. The strength of the consensus was determined by the following rating system: a strong rating was defined as all four key opinion leaders (KOLs) rating the statement ≥ 8, a moderate rating was defined as three out of four KOLs rating the statement ≥ 8, and no consensus was defined as less than three out of four KOLs provided a rating of ≤ 8. Specialists voted on agreement with each consensus statement for their disease area using the same ten-point scoring system.</p><p><strong>Results: </strong>Key opinion leaders in rheumatology, nephrology, and hematology achieved consensuses for all nine statements pertaining to the primary and booster series with transplant physicians reaching consensus on eight of nine statements. Experts agreed that COVID-19 vaccines are safe, effective, and well tolerated by patients with rheumatological conditions, renal disease, hematologic malignancy, and recipients of solid organ transplants. The Delphi process yielded strong to moderate suggestions for the use of COVID-19 messenger ribonucleic acid (mRNA) vaccines and the necessity of the COVID-19 booster for the immunocompromised population. The expert panel had mixed feelings concerning the measurement of antibody titers, higher-dose mRNA vaccines, and the development of disease-specific COVID-19 guidance.</p><p><strong>Conclusions: </strong>These results confirmed the necessity of COVID-19 vaccines and boosters in immunocompromised patients with rheumatologic disease, renal disease, hematological malignancy, and solid organ transplant recipients. Statements where consensus was not achieved were due to absent or limited evidence.</p>","PeriodicalId":13592,"journal":{"name":"Infectious Diseases and Therapy","volume":null,"pages":null},"PeriodicalIF":4.7,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11499477/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142390267","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Beatrice Grabein, Francis F Arhin, George L Daikos, Luke S P Moore, V Balaji, Nathalie Baillon-Plot
{"title":"Navigating the Current Treatment Landscape of Metallo-β-Lactamase-Producing Gram-Negative Infections: What are the Limitations?","authors":"Beatrice Grabein, Francis F Arhin, George L Daikos, Luke S P Moore, V Balaji, Nathalie Baillon-Plot","doi":"10.1007/s40121-024-01044-8","DOIUrl":"10.1007/s40121-024-01044-8","url":null,"abstract":"<p><p>The spread of carbapenemase-producing gram-negative pathogens, especially those producing metallo-β-lactamases (MBLs), has become a major health concern. MBLs are molecularly the most diverse carbapenemases, produced by a wide spectrum of gram-negative organisms, including the Enterobacterales, Pseudomonas spp., Acinetobacter baumannii, and Stenotrophomonas maltophilia, and can hydrolyze most β-lactams using metal ion cofactors in their active sites. Over the years, the prevalence of MBL-carrying isolates has increased globally, particularly in Asia. MBL infections are associated with adverse clinical outcomes including longer length of hospital stay, ICU admission, and increased mortality across the globe. The optimal treatment for MBL infections not only depends on the pathogen but also on the underlying resistance mechanisms. Currently, there are only few drugs or drug combinations that can efficiently offset MBL-mediated resistance, which makes the treatment of MBL infections challenging. The rising concern of MBLs along with the limited treatment options has led to the need and development of drugs that are specifically targeted towards MBLs. This review discusses the prevalence of MBLs, their clinical impact, and the current treatment options for MBL infections and their limitations. Furthermore, this review will discuss agents currently in the pipeline for treatment of MBL infections.</p>","PeriodicalId":13592,"journal":{"name":"Infectious Diseases and Therapy","volume":null,"pages":null},"PeriodicalIF":4.7,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11499561/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142345906","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Acute Cerebellitis Following COVID-19: Alarming Clinical Presentation Challenged by Normal Paraclinical Findings.","authors":"Samantha Poloni, Abdoulaye Hamani, Valentine Kassis, Pauline Escoffier, Beate Hagenkotter, Vincent Gendrin, Souheil Zayet, Timothée Klopfenstein","doi":"10.1007/s40121-024-01048-4","DOIUrl":"10.1007/s40121-024-01048-4","url":null,"abstract":"<p><p>We report the case of an acute cerebellitis following COVID-19 in 32-year-old man who presented with a life-threatening critical cerebellar syndrome contrasting with normal paraclinical findings. Despite this fulminant critical presentation, the patient fully recovered in 37 days after early treatment with high-dose steroids and intravenous immunoglobulins. This case highlights the need for clinicians to be aware of acute cerebellitis following COVID-19, despite normal laboratory, imaging and electroencephalography findings and the importance to start appropriate treatment as soon as possible.</p>","PeriodicalId":13592,"journal":{"name":"Infectious Diseases and Therapy","volume":null,"pages":null},"PeriodicalIF":4.7,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11499496/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142307699","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Letter to the Editor: \"Real-World Effectiveness of Ensitrelvir in Reducing Severe Outcomes in Outpatients at High Risk for COVID-19\".","authors":"Hideharu Hagiya","doi":"10.1007/s40121-024-01053-7","DOIUrl":"10.1007/s40121-024-01053-7","url":null,"abstract":"","PeriodicalId":13592,"journal":{"name":"Infectious Diseases and Therapy","volume":null,"pages":null},"PeriodicalIF":4.7,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11499574/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142307700","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Letter to the Editor Regarding \"Prognostic Significance of NLR and PLR in COVID-19: A Multi-Cohort Validation Study\".","authors":"Jiahua Zhang, Xinjie Wang","doi":"10.1007/s40121-024-01045-7","DOIUrl":"10.1007/s40121-024-01045-7","url":null,"abstract":"","PeriodicalId":13592,"journal":{"name":"Infectious Diseases and Therapy","volume":null,"pages":null},"PeriodicalIF":4.7,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11499481/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142345904","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Enteric Pathogen Detection Using Multiplex PCR Assay in Kidney Transplant Recipients with Diarrhea-Retrospective Before-After Study.","authors":"Alaa Atamna, Ruth Rahamimov, Aviel Levit, Loulou Saleh, Haim Ben Zvi, Jihad Bishara, Dafna Yahav","doi":"10.1007/s40121-024-01056-4","DOIUrl":"10.1007/s40121-024-01056-4","url":null,"abstract":"<p><strong>Introduction: </strong>Diarrhea is a frequent complication after kidney transplantation, however the etiology is often not identified. Multiplex PCR assays may increase the detection of diarrheal pathogens among kidney transplant recipients (KTRs), leading to improved management.</p><p><strong>Methods: </strong>This was a retrospective before-after study, conducted in a high-volume transplant center. In September 2017, multiplex PCR assay was introduced. We reviewed all hospitalized KTRs with diarrhea during 1/2015-8/2017 (pre-GI PCR, n = 111) and 9/2017-12/2021 (GI PCR, n = 159) and followed them for 3 years. We performed univariate and multivariate analysis for predictors of pathogen identification, introducing the study period as an independent variable.</p><p><strong>Results: </strong>Among 270 hospitalized KTRs with diarrhea, 64 (24%) had an identified diarrheal pathogen. The proportion of KTRs with an identified pathogen increased from 20% (13/64) in the pre-GI PCR to 80% (51/64) post GI PCR (p < 0.01). Of 51 KTRs with an identified pathogen in the post GI PCR, 44 (86%) were diagnosed using GI PCR. GI PCR was more likely used in younger KTRs with more recent transplantation and higher creatinine level at admission. The most common non-C. difficile diarrheal pathogens in the post-GI PCR cohort were enteropathogenic Escherichia coli (n = 23, 58%), norovirus (n = 11, 28%), and Campylobacter (n = 11, 28%). Implementing GI PCR significantly increased the detection and identification of GI pathogens (odds ratio [OR] = 21, CI 95% 10-44; p < 0.001).</p><p><strong>Conclusions: </strong>Infectious etiologies of diarrhea were identified in a higher proportion of KTRs after the implementation of GI PCR. This emphasizes the importance of integrating this diagnostic tool into diarrhea workup in KTRs.</p>","PeriodicalId":13592,"journal":{"name":"Infectious Diseases and Therapy","volume":null,"pages":null},"PeriodicalIF":4.7,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11499484/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142464281","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}