National Healthcare Quality and Disparities Report
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AHRQ Research Studies
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Research Studies is a compilation of published research articles funded by AHRQ or authored by AHRQ researchers.
Results
1 to 25 of 41 Research Studies DisplayedStrauss AT, Sidoti CN, Purnell TS
Multicenter study of racial and ethnic inequities in liver transplantation evaluation: understanding mechanisms and identifying solutions.
This multicenter study examined racial and ethnic inequities in liver transplantation. The authors recruited participants from the liver transplantation (LT) teams including coordinators, advanced practice providers, physicians, social workers, dieticians, pharmacists, leadership at 2 major LT centers. They conducted 54 interviews and had 49 observation hours. They created a conceptual framework describing how transplant work system characteristics and other external factors may improve equity in the LT evaluation process. They proposed transplant center-level solutions (i.e., including but not limited to training of staff on health equity) to modifiable barriers in the clinical work system that could help patient navigation, reduce disparities, and improve access to care. Their findings call for an urgent need for transplant centers, national societies, and policy makers to focus efforts on improving equity (tailored, patient-centered resources) using the science of human factors and systems engineering.
AHRQ-funded; HS024600.
Citation: Strauss AT, Sidoti CN, Purnell TS .
Multicenter study of racial and ethnic inequities in liver transplantation evaluation: understanding mechanisms and identifying solutions.
Liver Transpl 2022 Dec;28(12):1841-56. doi: 10.1002/lt.26532..
Keywords: Racial and Ethnic Minorities, Transplantation, Disparities, Access to Care
Qin CX, Auerbach SR, Charnaya O
Antibody response to three SARS-CoV-2 mRNA vaccines in adolescent solid organ transplant recipients.
The purpose of this observational cohort study was to assess whether a third SARS-CoV-2 vaccine would improve immunogenicity in adolescent solid organ transplant recipients (SOTRs), and to report the antibody response and safety of a third mRNA vaccine dose (D3) in adolescent SOTRs. Forty-two participants received three BNT162b2 doses and one received three mRNA-1273 doses. Participants were 6-13 years from transplant (median 10 [IQR]), and heart transplant was the most common procedure, in 41.9% of the participants. 9.3% of participants reported pre-D1 SARS-CoV-2 infections and 9.3% reported breakthrough infections. The study found that 88.4% of adolescent SOTRs had positive antibody responses 1 month post-D3, an increase from 63–73% post-D2. 54.5% of participants with prior negative responses seroconverted and 100% with positive responses increased or remained at maximum titer. Titers remained stable 3 months post-D3. There were no vaccine-related adverse events and four breakthrough infections. The researchers concluded that although this was a convenience sample, the results suggest there is an antibody response benefit to a third SARS-CoV-2 vaccine in adolescent SOTRs.
AHRQ-funded; HS026510.
Citation: Qin CX, Auerbach SR, Charnaya O .
Antibody response to three SARS-CoV-2 mRNA vaccines in adolescent solid organ transplant recipients.
Am J Transplant 2022 Oct;22(10):2481-83. doi: 10.1111/ajt.17085..
Keywords: Children/Adolescents, COVID-19, Vaccination, Transplantation
Butler T, Cummings LS, Purnell TS
The case for prioritizing diversity in the transplantation workforce to advance kidney health equity.
The authors of this article propose a more diverse transplant workforce to address the problem of kidney transplant inequity. Black patients are disproportionately affected by kidney failure and systemic barriers to kidney transplantation such as delayed referrals, which may be due to clinician bias. Workforce diversity would help to alleviate the harm of implicit biases.
AHRQ-funded; HS024600.
Citation: Butler T, Cummings LS, Purnell TS .
The case for prioritizing diversity in the transplantation workforce to advance kidney health equity.
J Am Soc Nephrol 2022 Oct; 33(10):1817-19. doi: 10.1681/asn.2022040429..
Keywords: Kidney Disease and Health, Transplantation, Workforce, Disparities, Racial and Ethnic Minorities
Israni AK, Schladt D, Bruin MJ
Deconstructing silos of knowledge around lung transplantation to support patients: a patient-specific search of scientific registry of transplant recipients data.
This article describes the development of the web site www.transplantcentersearch.org intended to support lung transplant patients by providing program-level data from the Scientific Registry of Transplant Recipients (SRTR) on each program in the United States. There is a high level of variation in selection criteria and although nearly half of recipients reside within 50 miles of their transplant program, >30% travel 100 miles or more. The web site allows patients to search for programs in the area of their choosing and receive information on the number of transplants and program factors that are most predictive of recipient survival after listing. Patients can also review information on recipients and donors at each program to further differentiate program options. This feature is patient-specific, allowing the patient to enter information about their clinical background and indicate general preferences for their treatment before receiving counts on recipients and donors matching their entries. The development of the site involved 2 phases. In Phase I the authors examined variations between programs using data on waitlist and transplant outcomes from the SRTR. Phase II involved interviews and focus groups with transplant candidates, recipients, and family members to gain insight into the decision-making process, barriers, and knowledge groups. In the future randomized trials will be conducted to evaluate the efficacy of the web site.
AHRQ-funded; HS026379.
Citation: Israni AK, Schladt D, Bruin MJ .
Deconstructing silos of knowledge around lung transplantation to support patients: a patient-specific search of scientific registry of transplant recipients data.
Transplantation 2022 Aug;106(8):1517-19. doi: 10.1097/tp.0000000000004051..
Keywords: Transplantation, Registries, Patient-Centered Outcomes Research, Evidence-Based Practice
Alvarado F, Cervantes CE, Crews DC
Examining post-donation outcomes in Hispanic/Latinx living kidney donors in the United States: a systematic review.
The purpose of this systematic qualitative review was to evaluate outcomes in Hispanic donors and examine how Hispanic ethnicity was presented. In October 2021, the researchers reviewed PubMed, EMBASE, and Scopus for studies, with 18 meeting the inclusion criteria. Across the studies, Hispanic donors ranged between 6% and 21% of the donor populations. The study found that Hispanic donors were not at increased risk for end-stage kidney disease, cardiovascular disease, non-pregnancy-related hospitalizations, overall perioperative surgical complications or post-donation mortality compared to non-Hispanic White donors. Also compared to non-Hispanic White donors, most studies showed Hispanic donors were at higher risk for diabetes mellitus following nephrectomy; however, mixed findings were observed regarding the risk for post-donation chronic kidney disease and hypertension. The researchers concluded that future studies should explain variation in health outcomes by considering and assessing differences within the Hispanic donor population.
AHRQ-funded; HS024600.
Citation: Alvarado F, Cervantes CE, Crews DC .
Examining post-donation outcomes in Hispanic/Latinx living kidney donors in the United States: a systematic review.
Am J Transplant 2022 Jul;22(7):1737-53. doi: 10.1111/ajt.17017..
Keywords: Transplantation, Kidney Disease and Health, Chronic Conditions, Racial and Ethnic Minorities, Disparities
Gonzales HM, Fleming JN, Gebregziabher M
A critical analysis of the specific pharmacist interventions and risk assessments during the 12-month TRANSAFE Rx randomized controlled trial.
The objective of this study was to describe frequency and types of interventions made during a pharmacist-led, mobile health-based intervention of high-risk kidney transplant (KTX) recipients and to assess impact on patient risk levels. Primary pharmacist intervention types were medication reconciliation, patient education, and medication changes. The authors concluded that pharmacist-led mHealth may enhance opportunities for interventions and mitigate risk levels in KTX recipients.
AHRQ-funded; HS023754.
Citation: Gonzales HM, Fleming JN, Gebregziabher M .
A critical analysis of the specific pharmacist interventions and risk assessments during the 12-month TRANSAFE Rx randomized controlled trial.
Ann Pharmacother 2022 Jun; 56(6):685-90. doi: 10.1177/10600280211044792..
Keywords: Provider: Pharmacist, Medication: Safety, Medication, Risk, Transplantation, Kidney Disease and Health, Adverse Drug Events (ADE), Medical Errors, Patient Safety
Wall SP, Castillo P, Shuchat Shaw F
Including medical footage and emotional content in organ donation educational videos for Latinx viewers.
The purpose of this 2 x 3 randomized controlled trial was to evaluate whether different types of videos shown in Latinx-owned barbershops and beauty salons affected deceased organ donor registration. Videos included medical footage of organ preservation and transplantation, as well as sad, uplifting, or unresolved stories. Impact was measured as it related to the impact of medical footage and storylines on three variables: registry enrollment, donation willingness and stage of change, and emotions. The study found that 14.8% of participants registered for deceased organ donation. Medical footage, sad, and unresolved stories did not differentially affect registration or willingness to donate organs. Compared to the uplifting story, the sad and unresolved stories increased sadness and decreased positive affect. The educational videos which included or excluded medical footage of organ preservation and transplantation and varying emotional levels of stories did not differentially affect registration. The researchers concluded that future work is necessary to analyze qualitative data that was collected with a subset of participants in order to report the qualitative reasons for participants' registration decisions.
AHRQ-funded; HS016482.
Citation: Wall SP, Castillo P, Shuchat Shaw F .
Including medical footage and emotional content in organ donation educational videos for Latinx viewers.
Health Educ Behav 2022 Jun;49(3):424-36. doi: 10.1177/10901981211022240..
Keywords: Transplantation, Education: Patient and Caregiver, Racial and Ethnic Minorities
Bowring MG, Massie AB, Schwarz KB
Survival benefit of split-liver transplantation for pediatric and adult candidates.
The patient and graft survival rates for split -liver transplantations (SLTs) among pediatric and adult recipients are similar to those of whole-liver transplantations (WLTs), yet SLTs are rarely used. The purpose of the study was to compare the survival benefit of accepting an offer of a splittable graft vs waiting for a subsequent offer. The researchers utilized data from the 2010 to 2018 Scientific Registry of Transplant Recipients (SRTR) on 1814 adult and 928 pediatric liver transplantation candidates ever offered a splittable graft, and compared the eventual mortality between patients who accepted vs declined an offer for an SLT. The study discovered that among adult candidates, acceptance of an SLT offer was associated with a 43% reduction in mortality, and within 1 year of declining an offer 39.3% received a WLT, and 7.9% died. In pediatric cases with a weight of less than or equal to 7 kilograms, acceptance of a split liver offer versus declining the offer was associated with a 63% reduction in mortality, and within 1 year of declining 45.8% received a WLT and 6.4% died. In the group of pediatric cases with weight greater than 7 kilograms there was no significant difference between acceptance of an SLT offer and decline. The study concluded that accepting an offer for SLT could significantly improve survival for adults and small children on the liver transplant waiting list.
AHRQ-funded; HS023876.
Citation: Bowring MG, Massie AB, Schwarz KB .
Survival benefit of split-liver transplantation for pediatric and adult candidates.
Liver Transpl 2022 Jun;28(6):969-82. doi: 10.1002/lt.26393..
Keywords: Children/Adolescents, Transplantation
Jacobson CE, Heximer A, Olmeda-Barrientos R
Language accessibility of liver transplantation center websites.
This research letter describes an analysis of language accessibility of liver transplantation center websites. The authors surveyed patient-facing educational websites of all 140 active, accredited US liver transplantation centers. Thirty-eight states and the District of Columbia had websites. Inclusion criteria was that they were using the Organ Procurement and Transplantation Network website. They analyzed each website for non-English content. Excluded were websites from Puerto Rico, as Spanish is the predominant governmental language. A total of 23 states had no transplant websites with online materials in a second language, and 34 sites (24.3%) had resources other than English on their website. California had the highest number of centers with resources in a language other than English, followed by Texas and New York. Spanish was the most common language available at 100% of sites that had resources other than English, followed by Arabic at 38.9% and Mandarin Chinese at 38.9%. A total of 108 different languages were represented among 10 state websites.
AHRQ-funded; HS000053.
Citation: Jacobson CE, Heximer A, Olmeda-Barrientos R .
Language accessibility of liver transplantation center websites.
Liver Transpl 2022 Apr; 28(4):722-24. doi: 10.1002/lt.26343..
Keywords: Transplantation, Clinician-Patient Communication, Communication, Health Information Technology (HIT), Health Literacy
Barreto EF, May HP, Schreier DJ
Development and feasibility of a multidisciplinary approach to AKI survivorship in care transitions: research letter.
The purpose of this study was to observe and describe the development and feasibility of a multidisciplinary approach to caring for acute kidney injury (AKI) survivors at care transitions (ACT). The studied population were adults with stage 3 AKI who were not discharging on dialysis and were established with a primary care provider at the authors’ academic medical center in the U.S. Preliminary data indicated that AKI survivors of interest could primarily be identified, educated, and followed up with using the multidisciplinary approach model, which also maximized the unique expertise of each team member. The authors concluded that this multidisciplinary ACT workflow supported by clinical decision support was feasible, scalable, and addressed gaps in existing care transition models.
AHRQ-funded; HS028060.
Citation: Barreto EF, May HP, Schreier DJ .
Development and feasibility of a multidisciplinary approach to AKI survivorship in care transitions: research letter.
Can J Kidney Health Dis 2022 Mar 6; 9:20543581221081258. doi: 10.1177/20543581221081258..
Keywords: Kidney Disease and Health, Transplantation, Transitions of Care
Kemme S, Yoeli D, Sundaram SS
Decreased access to pediatric liver transplantation during the COVID-19 pandemic.
The purpose of the study was to explore and understand the impact of the COVID-19 pandemic on nationwide pediatric liver transplants. The researchers compared data for transplant waiting list additions, removals, and liver transplants during pre-COVID-19 (March-November 2016-2019), early COVID-19 (March-May 2020), and late COVID-19 (June-November 2020). The study results showed a 38% decrease in liver transplantations during early COVID-19, recovering to pre-pandemic rates during late COVID-19. White children had a 30% decrease in overall liver transplantation, while non-White children had a 44% decrease in overall liver transplantation. Additions to the waiting list decreased 25% during COVID-19, with Black transplant candidates the most affected, and children spent longer on the waiting list during early COVID-19 compared to pre-COVID-19 (140 vs. 96 days). The study concluded that the COVID-19 pandemic decreased access to pediatric liver transplants, especially during early COVID-19. The researchers discussed that although the rate of pediatric liver transplants has resumed to pre-COVID-19 levels, racial disparities must be addressed.
AHRQ-funded; HS026510.
Citation: Kemme S, Yoeli D, Sundaram SS .
Decreased access to pediatric liver transplantation during the COVID-19 pandemic.
Pediatr Transplant 2022 Mar;26(2):e14162. doi: 10.1111/petr.14162..
Keywords: Children/Adolescents, COVID-19, Transplantation, Access to Care, Disparities
Gianaris K, Vargas GB, Johnson M
Perceived susceptibility to chronic kidney disease and hypertension self-management among Black and White live kidney donors.
This study examines the theory whether Black kidney donors are more likely than White donors to develop hypertension (HTN) and chronic kidney disease after donation. The authors ascertained electronic medical records and phone survey data from live donors enrolled in the multi-center Wellness and Health Outcomes of LivE Donors (WHOLE-Donor) Hypertension Care Study between May 2013 and April 2020. The study cohort included 318 US-based live kidney donors who developed post-donation HTN with 57.6% female, 78.9% White, 18.6% Black, and a mean age of 46.7 years. Donors with diabetes or who were older than 50 years reported being moderately or strongly concerned about kidney disease. A large majority (87%) reported taking at least one action to help control blood pressure, with no significant differences by sociodemographic factors. They found no substantial differences in perceived susceptibility to kidney disease among Black and White donors, despite published evidence that Black donors may experience greater risk of developing kidney disease than White donors.
AHRQ-funded; HS024600.
Citation: Gianaris K, Vargas GB, Johnson M .
Perceived susceptibility to chronic kidney disease and hypertension self-management among Black and White live kidney donors.
Ethn Dis 2022 Spring;32(2):101-08. doi: 10.18865/ed.32.2.101..
Keywords: Kidney Disease and Health, Chronic Conditions, Racial and Ethnic Minorities, Transplantation, Patient Self-Management, Blood Pressure
Qin CX, Auerbach SR, Charnaya O
Antibody response to 2-dose SARS-CoV-2 mRNA vaccination in pediatric solid organ transplant recipients.
While many adult solid organ transplant recipients (SOTRs) have impaired antibody response to severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) vaccination, pediatric SOTRs’ response has not been assessed. In this article, the researchers reported the immunogenicity and safety of BNT162b2 mRNA vaccination in pediatric SOTRs.
AHRQ-funded; HS026510.
Citation: Qin CX, Auerbach SR, Charnaya O .
Antibody response to 2-dose SARS-CoV-2 mRNA vaccination in pediatric solid organ transplant recipients.
Am J Transplant 2022 Feb;22(2):669-72. doi: 10.1111/ajt.16841..
Keywords: Children/Adolescents, Vaccination, COVID-19, Transplantation
Almasri J, Tello M, Benkhadra R
A systematic review for variables to be collected in a transplant database for improving risk prediction.
This study is a systematic review that was commissioned to identify new variables associated with transplant outcomes that are not currently collected by the Organ Procurement and Transplantation Network. They identified 81 unique studies including almost 1.2 million patients with median follow-up of 36 months posttransplant. A total of 108 unique risk factors were reported with most (104) recipient related and only 4 donor related. Most risk factors were small to moderate (ranging between 1.0 and 2.0). There were four relative association measures that were the strongest: 1) heart transplant recipients with a previous Fontan operation (8.6); 2) kidney transplant recipients with sickle cell nephropathy as primary cause of end-stage renal disease (2.8); 3) liver transplant recipients with serum ferritin >500 microg/L (14.3); and 4) lung transplant recipients with Burkholderia cepacia complex infection for 1 year or less (63.). These four risk factors were considered candidates for collection in databases and registries.
AHRQ-funded; HS024527.
Citation: Almasri J, Tello M, Benkhadra R .
A systematic review for variables to be collected in a transplant database for improving risk prediction.
Transplantation 2019 Dec;103(12):2591-601. doi: 10.1097/tp.0000000000002652..
Keywords: Transplantation, Risk, Shared Decision Making
Montgomery JR, Waits SA, Dimick JB
Risks of bariatric surgery among patients with end-stage renal disease.
Pretransplant morbid obesity among patients with end-stage renal disease (ESRD) is a significant predictor of delayed access to transplant and inferior posttransplant patient and kidney allograft outcomes. In this study, the authors performed an analysis of perioperative safety of bariatric surgery in obese patients with ESRD using a national registry capturing greater than 95% of bariatric operations.
AHRQ-funded; HS025778.
Citation: Montgomery JR, Waits SA, Dimick JB .
Risks of bariatric surgery among patients with end-stage renal disease.
JAMA Surg 2019 Dec;154(12):1160-62. doi: 10.1001/jamasurg.2019.2824..
Keywords: Surgery, Obesity, Obesity: Weight Management, Kidney Disease and Health, Transplantation, Risk, Chronic Conditions
Feldman AG, Sundaram SS, Beaty BL
Immunization status at the time of liver transplant in children and adolescents.
In this research letter, the authors quantified the percentage of patients at Society of Pediatric Liver Transplantation centers who were up to date for their age on immunizations at the time of transplant, and determined whether demographic and clinical factors were associated with immunization status at the time of transplant. They concluded that further research is needed to understand barriers to immunization in the pediatric transplant population and called for novel tools that provide pretransplant vaccine education and enhance communication between primary care and subspecialty clinicians.
AHRQ-funded; HS026510.
Citation: Feldman AG, Sundaram SS, Beaty BL .
Immunization status at the time of liver transplant in children and adolescents.
JAMA 2019 Nov 12;322(18):1822-24. doi: 10.1001/jama.2019.14386..
Keywords: Transplantation, Children/Adolescents, Vaccination, Surgery
DiBrito SR, Bowring MG, Holscher CM
Acute care surgery for transplant recipients: a national survey of surgeon perspectives and practices.
This study is a survey of acute care surgeons (ACS) and transplant surgeons on their attitudes as to who would feel comfortable operating on transplant patients for nontransplant-related issues. The researchers conducted a national survey of ACS and transplant surgeons and obtained 230 ACS responses and 240 from transplant surgeons. While both ACS and transplant surgeons felt care is better at transplant centers and if the patient requires acute surgery they should be transferred to a transplant center, the ACS still felt comfortable operating and performing laparoscopy on transplant recipients.
Citation: DiBrito SR, Bowring MG, Holscher CM .
Acute care surgery for transplant recipients: a national survey of surgeon perspectives and practices.
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Keywords: Transplantation, Surgery, Provider: Physician, Provider, Practice Patterns
Luo X, Mogul DB, Massie AB
Predicting chance of liver transplantation for pediatric wait-list candidates.
The authors sought to predict the chance of receiving a deceased donor liver transplant (DDLT) for pediatric patients. Their model accurately predicted chance of transplant and was able to predict DDLT at specific follow-up times. They conclude that their model can serve as the basis for an online tool that would provide useful information for pediatric wait-list candidates.
AHRQ-funded; HS023876.
Citation: Luo X, Mogul DB, Massie AB .
Predicting chance of liver transplantation for pediatric wait-list candidates.
Pediatr Transplant 2019 Nov;23(7):e13542. doi: 10.1111/petr.13542..
Keywords: Children/Adolescents, Transplantation, Healthcare Delivery, Access to Care
Mogul DB, Fredericks EM, Brady TM
Digital wings: innovations in transition readiness for adolescent and young adult transplant recipients.
This article reports on two multi-stakeholder symposia organized by The Johns Hopkins University School of Medicine on February 2, 2018, and January 11, 2019, to address the problem of high graft failure in adolescent and young adult solid organ transplant recipients. Additionally, data collected from recipients demonstrated a substantial gap in how this population uses technologies for health-related activities, alongside an increased interest in an app to help them manage their transplant.
AHRQ-funded; HS023876.
Citation: Mogul DB, Fredericks EM, Brady TM .
Digital wings: innovations in transition readiness for adolescent and young adult transplant recipients.
Transplantation 2019 Oct;103(10):1970-74. doi: 10.1097/tp.0000000000002749..
Keywords: Transplantation, Children/Adolescents, Young Adults, Surgery, Patient-Centered Outcomes Research, Evidence-Based Practice
Purnell TS, Luo X, Crews DC
Neighborhood poverty and sex differences in live donor kidney transplant outcomes in the United States.
Neighborhood poverty has been associated with worse outcomes after live donor kidney transplantation (LDKT), and prior work suggests that women with kidney disease may be more susceptible to the negative influence of poverty than men. As such, our goal was to examine whether poverty differentially affects women in influencing LDKT outcomes. The investigators concluded that given their findings that poverty was more strongly associated with graft loss in women, targeted efforts are needed to specifically address mechanisms driving these disparities in LDKT outcomes.
AHRQ-funded; HS024600.
Citation: Purnell TS, Luo X, Crews DC .
Neighborhood poverty and sex differences in live donor kidney transplant outcomes in the United States.
Transplantation 2019 Oct;103(10):2183-89. doi: 10.1097/tp.0000000000002654.
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Keywords: Transplantation, Kidney Disease and Health, Patient-Centered Outcomes Research, Disparities, Women, Sex Factors, Low-Income, Outcomes
Stepkowski SM, Mierzejewska B, Fumo D
The 6-year clinical outcomes for patients registered in a multiregional United States Kidney Paired Donation program - a retrospective study.
This retrospective study examined 6-year clinical outcomes for patients registered in a multiregional US Kidney Paired Donation (KPF) program. A total of 1121 end-stage renal disease patients who registered with their willing/incompatible living donors for kidney exchange were followed. Out of the 1121, 65% were transplanted with 37% of them in kidney paired donations, 10% with compatible live donors, and 18% with deceased donors. The remaining patients withdrew due to illness or death, or were still waiting (20%). There were similar survival rates with the different donor methods.
AHRQ-funded; HS020610.
Citation: Stepkowski SM, Mierzejewska B, Fumo D .
The 6-year clinical outcomes for patients registered in a multiregional United States Kidney Paired Donation program - a retrospective study.
Transpl Int 2019 Aug;32(8):839-53. doi: 10.1111/tri.13423..
Keywords: Kidney Disease and Health, Mortality, Outcomes, Transplantation
Mogul DB, Lee J, Purnell TS
Barriers to access in pediatric living-donor liver transplantation.
This study examined knowledge and attitudes about living donor liver transplantation (LDLT) among patients/caregivers for children awaiting or having received a liver transplant. LDLT is only used for 10% of transplant recipients, but has a much better outcome. A survey was conducted among 217 respondents. While 97% of respondents knew an individual could donate a portion of their kidney, only 72% knew evaluation steps, and 69% knew the donor surgery was covered by the recipient’s insurance. Individuals receiving public insurance and without a college degree were less likely to know someone who had been a living donor. This gap in knowledge can create barriers to increasing LDLT for children.
AHRQ-funded; HS023876; HS024600.
Citation: Mogul DB, Lee J, Purnell TS .
Barriers to access in pediatric living-donor liver transplantation.
Pediatr Transplant 2019 Sep;23(6):e13513. doi: 10.1111/petr.13513..
Keywords: Children/Adolescents, Access to Care, Transplantation
Yanik MV, Seifert ME MV, Seifert ME, Locke JE
CYP3A5 genotype affects time to therapeutic tacrolimus level in pediatric kidney transplant recipients.
Optimal management of immunosuppression in kidney transplantation requires a delicate balance of efficacy and toxicity. Tacrolimus (TAC) dose requirements are significantly impacted by genetic variation in CYP3A5 polymorphisms, however the impact that genotype has on clinical outcomes in the pediatric kidney transplant population remains unclear. In this study, the investigators evaluated a retrospective cohort of 98 pediatric kidney transplant recipients. In this paper, they report on their findings.
AHRQ-funded; HS013852.
Citation: Yanik MV, Seifert ME MV, Seifert ME, Locke JE .
CYP3A5 genotype affects time to therapeutic tacrolimus level in pediatric kidney transplant recipients.
Pediatr Transplant 2019 Aug;23(5):e13494. doi: 10.1111/petr.13494..
Keywords: Children/Adolescents, Transplantation, Kidney Disease and Health, Genetics
Chang SH, Wang M, Liu X
Racial/ethnic disparities in access and outcomes of simultaneous liver-kidney transplant among liver transplant candidates with renal dysfunction in the United States.
Since the Model for End-stage Liver Disease (MELD) allocation system was implemented, the proportion of simultaneous liver-kidney transplantation (SLKT) has increased significantly. The investigators study whether racial/ethnic disparities exist in access to SLKT and post-SLKT survival. The investigators concluded that in the MELD era, racial/ethnic differences exist in access and survival of SLKT for patients with renal dysfunction at listing for LT.
AHRQ-funded; HS022330.
Citation: Chang SH, Wang M, Liu X .
Racial/ethnic disparities in access and outcomes of simultaneous liver-kidney transplant among liver transplant candidates with renal dysfunction in the United States.
Transplantation 2019 Aug;103(8):1663-74. doi: 10.1097/tp.0000000000002574..
Keywords: Access to Care, Disparities, Kidney Disease and Health, Outcomes, Policy, Transplantation
Hart A, Gustafson SK, Wey A
The association between loss of Medicare, immunosuppressive medication use, and kidney transplant outcomes.
The purpose of this study was to determine the association between the timing of Medicare loss and immunosuppressive medication fills and kidney allograft loss. Findings indicated that the medication possession ratio (MPR) was lower for recipients with early or late Medicare loss compared with no coverage loss for all immunosuppressive medication types. When recipients were matched by age, posttransplant timing of Medicare loss, and donor risk, the hazard of allograft loss was significantly higher after Medicare loss, with no difference in the hazard for on-time Medicare loss.
AHRQ-funded; HS024527.
Citation: Hart A, Gustafson SK, Wey A .
The association between loss of Medicare, immunosuppressive medication use, and kidney transplant outcomes.
Am J Transplant 2019 Jul;19(7):1964-71. doi: 10.1111/ajt.15293..
Keywords: Kidney Disease and Health, Medicare, Medication, Outcomes, Patient-Centered Outcomes Research, Transplantation