Browsing by Author "Taber, Tim E."

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    Deceased donor organ procurement injuries in the United States
    (Baishideng Publishing Group Co (World Journal of Transplantation), 2016-06-24) Taber, Tim E.; Neidlinger, Nikole A.; Mujtaba, Muhammad A.; Eidbo, Elling E.; Cauwels, Roxane L.; Hannan, Elizabeth M.; Miller, Jennifer R.; Paramesh, Anil S.; Department of Medicine, IU School of Medicine
    AIM: To determine the incidence of surgical injury during deceased donor organ procurements. METHODS: Organ damage was classified into three tiers, from 1-3, with the latter rendering the organ non-transplantable. For 12 consecutive months starting in January of 2014, 36 of 58 organ procurement organization's (OPO)'s prospectively submitted quality data regarding organ damage (as reported by the transplanting surgeon and confirmed by the OPO medical director) seen on the procured organ. RESULTS: These 36 OPOs recovered 5401 of the nations's 8504 deceased donors for calendar year 2014. A total of 19043 organs procured were prospectively analyzed. Of this total, 59 organs sustained damage making them non-transplantable (0 intestines; 4 pancreata; 5 lungs; 6 livers; 43 kidneys). The class 3 damage was spread over 22 (of 36) reporting OPO's. CONCLUSION: While damage to the procured organ is rare with organ loss being approximately 0.3% of procured organs, loss of potential transplantable organs does occur during procurement.
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    Is the kidney donor profile index (KDPI) universal or UNOS-specific?
    (Wiley, 2017) Ekser, Burcin; Powelson, John A.; Fridell, Jonathan A.; Goggins, William C.; Taber, Tim E.; Surgery, School of Medicine
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    A National Survey of Practice Patterns for Accepting Living Kidney Donors With Prior COVID-19
    (Science Direct, 2021-08-01) Jan, Muhammad Y.; Jawed, Areeba T.; Barros, Nicolas; Adebiyi, Oluwafisayo; Diez, Alejandro; Fridell, Jonathan A.; Goggins, William C.; Yaqub, Muhammad S.; Anderson, Melissa D.; Mujtaba, Muhammad A.; Taber, Tim E.; Mishler, Dennis P.; Kumar, Vineeta; Lentine, Krista L.; Sharfuddin, Asif A.; Medicine, School of Medicine
    Introduction A critical question facing transplant programs is whether, when, and how to safely accept living kidney donors (LKDs) who have recovered from COVID-19 infection. The purpose of the study is to understand current practices related to accepting these LKDs. Methods We surveyed US transplant programs from 3 September through 3 November 2020. Center level and participant level responses were analyzed. Results A total of 174 respondents from 115 unique centers responded, representing 59% of US LKD programs and 72.4% of 2019 and 72.5% of 2020 LKD volume (Organ Procurement and Transplantation Network-OPTN 2021). In all, 48.6% of responding centers had received inquiries from such LKDs, whereas 44.3% were currently evaluating. A total of 98 donors were in the evaluation phase, whereas 27.8% centers had approved 42 such donors to proceed with donation. A total of 50.8% of participants preferred to wait >3 months, and 91% would wait at least 1 month from onset of infection to LD surgery. The most common reason to exclude LDs was evidence of COVID-19−related AKI (59.8%) even if resolved, followed by COVID-19−related pneumonia (28.7%) and hospitalization (21.3%). The most common concern in accepting such donors was kidney health postdonation (59.2%), followed by risk of transmission to the recipient (55.7%), donor perioperative pulmonary risk (41.4%), and donor pulmonary risk in the future (29.9%). Conclusion Practice patterns for acceptance of COVID-19−recovered LKDs showed considerable variability. Ongoing research and consensus building are needed to guide optimal practices to ensure safety of accepting such donors. Long-term close follow-up of such donors is warranted.
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    Nondirected Living Kidney Donation and Recipient Outcomes in the United States: A 20-Year Review
    (Elsevier, 2022-03-22) Jan, Muhammad Y.; Yaqub, Muhammad S.; Adebiyi, Oluwafisayo O.; Taber, Tim E.; Anderson, Melissa D.; Mishler, Dennis P.; Burney, Heather N.; Li, Yang; Li, Xiaochun; Sharfuddin, Asif A.; Medicine, School of Medicine
    Introduction: Nondirected donation (NDD) of the kidneys is a growing practice where donors who do not have any genetic or emotional relationship are selected to donate to a wide variety of recipients with a range of selection criteria and decisions which are left up to individual transplant centers. Methods: We review all adult living kidney donor-recipient (DR) pairs and outcomes from NDDs who were recorded in United Network for Organ Sharing (UNOS) database as code 10 (anonymous) from October 1997 to September 2017 for demographics and outcomes. Results: A total of 2174 DR pairs were identified. The number of NDDs increased from 18 in 2000 to 256 in 2016. Survival analysis showed higher death-censored-graft survival (DC-GS) when recipient was 20 years or more older than donor followed by recipient-donor within 20 years of age and lowest when donor was 20 years or more older than recipient (P = 0.0114). Conclusion: Overall, the number of NDDs has increased significantly in the 20-year review period. Transplants from NDDs have excellent long-term outcomes. Better matching of controllable DR factors, such as age and body mass index (BMI), could further improve GS. Further research is needed to incorporate these DR factors into paired kidney donation programs potentially enhancing the utility and beneficence of this invaluable donation.
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    Vasopressin for Post-kidney Transplant Hypotension
    (Elsevier, 2022-04-07) Jan, Muhammad Y.; Moe, Sharon M.; Adebiyi, Oluwafisayo; Chen, Jeannie; Powelson, John; Burney, Heather N.; Yaqub, Muhammad S.; Mishler, Dennis P.; Moorthi, Ranjani N.; Taber, Tim E.; Anderson, Melissa D.; Li, Yang; Li, Xiaochun; Fridell, Jonathan A.; Goggins, William C.; Sharfuddin, Asif A.; Medicine, School of Medicine
    Introduction: Hypotension after deceased donor kidney transplant (DDKT) is a risk factor for delayed graft function (DGF) and poor graft survival (GS). We hypothesize that vasopressin use in hypotensive DDKT recipients (DDKTRs) to increase blood pressure (BP) reduces DGF rates and is safe without increasing mortality. Methods: Group with vasopressin "study group" (n = 45) was defined as DDKTRs between 2012 and 2017 who required vasopressin for hypotension systolic BP (SBP) <120 mm Hg or diastolic BP (DBP) <60 mm Hg. DDKTRs with no-vasopressin "comparison group" (n = 90) were propensity score-matched DDKTRs between 2012 and 2017 without vasopressin use. Primary outcomes were GS, creatinine and allograft biopsy rate at 1 year, DGF rate, and death during transplant hospitalization. Results: Vasopressin group had lower mean maximum and minimum SBP and DBP in the operating room (OR). Median vasopressin start time post-DDKT was 2 hours (interquartile range [IQR] 1-6), and duration of use was 42 hours (IQR 24-63). DGF, creatinine at 1 year, and allograft biopsy rates were comparable. No deaths occurred during transplant hospitalization. Multivariable analysis did not find an effect of vasopressin use on GS. Conclusion: Treatment of hypotensive DDKTRs with vasopressin is safe and facilitated similar graft function and survival with that of nonhypotensive patients. In the absence of a randomized control trial, our study supports the safety of vasopressin therapy to prevent the adverse effects of hypotension.