Browsing by Author "Locke, Jayme E."

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    Decreasing deceased donor transplant rates among children (≤6 years) under the new kidney allocation system
    (Elsevier, 2018) Shelton, Brittany A.; Sawinski, Deirdre; Ray, Christopher; Reed, Rhiannon D.; MacLennan, Paul A.; Blackburn, Justin; Young, Carlton J.; Gray, Stephen; Yanik, Megan; Massie, Allan; Segev, Dorry L.; Locke, Jayme E.; Health Policy and Management, School of Public Health
    The Kidney Allocation System (KAS) was implemented in December 2014 with unknown impact on the pediatric waitlist. To understand the effect of KAS on pediatric registrants, deceased donor kidney transplant (DDKT) rate was assessed using interrupted time series analysis and time-to-event analysis. Two allocation eras were defined with an intermediary washout period: Era 1 (01/01/2013-09/01/2014), Era 2 (09/01/2014-03/01/2015), and Era 3(03/01/2015-03/01/2017). When using Cox proportional hazards, there was no significant association between allocation era and DDKT likelihood as compared to Era 1 (Era 3: aHR: 1.07, 95% CI: 0.97-1.18, P = .17). However, this was not consistent across all subgroups. Specifically, while highly sensitized pediatric registrants were consistently less likely to be transplanted than their less sensitized counterparts, this disparity was attenuated in Era 3 (Era 1 aHR: 0.04, 95%CI: 0.01-0.14, P < .001; Era 3 aHR: 0.33, 95% CI: 0.21-0.53, P < .001) whereas the youngest registrants aged 0-6 experienced a 21% decrease in DDKT likelihood in Era 3 as compared to Era 1 (aHR: 0.79, 95% CI: 0.64-0.98, P = .03). Thus, while overall DDKT likelihood remained stable with the introduction of KAS, registrants ≤ 6 years of age were disadvantaged, warranting further study to ensure equitable access to transplantation.
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    Optimal Timing of Administration of Direct-Acting Antivirals for Patients with Hepatitis C-Associated Hepatocellular Carcinoma Undergoing Liver Transplantation
    (Wolters Kluwer, 2021-10) Turgeon, Michael K.; Shah, Shimul A.; Delman, Aaron M.; Tran, Benjamin V.; Agopian, Vatche G.; Wedd, Joel P.; Magliocca, Joseph F.; Kim, Ahyoung; Cameron, Andrew; Olyaei, Ali; Orloff, Susan L.; Anderson, Matthew P.; Kubal, Chandrashekhar A.; Cannon, Robert M.; Locke, Jayme E.; Simpson, Mary A.; Akoad, Mohamed E.; Wongjirad, Chelsey P.; Emamaullee, Juliet; Moro, Amika; Aucejo, Federico; Feizpour, Cyrus A.; Vagefi, Parsia A.; Nguyen, Mindie H.; Esquivel, Carlos O.; Dhanireddy, Kiran; Subramanian, Vijay; Chavarriaga, Alejandro; Kazimi, Marwan M.; Anderson, Maia S.; Sonnenday, Christopher J.; Kim, Steven C.; Foley, David P.; Abdouljoud, Marwan; Salgia, Reena J.; Moris, Dimitrios; Sudan, Debra L.; Ganesh, Swaytha R.; Humar, Abhinav; Doyle, Majella; Chapman, William C.; Maithel, Shishir K.; Surgery, School of Medicine
    Objective: To investigate the optimal timing of direct acting antiviral (DAA) administration in patients with hepatitis C-associated hepatocellular carcinoma (HCC) undergoing liver transplantation (LT). Summary of Background Data: In patients with hepatitis C (HCV) associated HCC undergoing LT, the optimal timing of direct-acting antivirals (DAA) administration to achieve sustained virologic response (SVR) and improved oncologic outcomes remains a topic of much debate. Methods: The United States HCC LT Consortium (2015–2019) was reviewed for patients with primary HCV-associated HCC who underwent LT and received DAA therapy at 20 institutions. Primary outcomes were SVR and HCC recurrence-free survival (RFS). Results: Of 857 patients, 725 were within Milan criteria. SVR was associated with improved 5-year RFS (92% vs 77%, P < 0.01). Patients who received DAAs pre-LT, 0–3 months post-LT, and ≥3 months post-LT had SVR rates of 91%, 92%, and 82%, and 5-year RFS of 93%, 94%, and 87%, respectively. Among 427 HCV treatment-naïve patients (no previous interferon therapy), patients who achieved SVR with DAAs had improved 5-year RFS (93% vs 76%, P < 0.01). Patients who received DAAs pre-LT, 0–3 months post-LT, and ≥3 months post-LT had SVR rates of 91%, 93%, and 78% (P < 0.01) and 5-year RFS of 93%, 100%, and 83% (P = 0.01). Conclusions: The optimal timing of DAA therapy appears to be 0 to 3 months after LT for HCV-associated HCC, given increased rates of SVR and improved RFS. Delayed administration after transplant should be avoided. A prospective randomized controlled trial is warranted to validate these results.