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1.
Transplant Proc ; 2024 Jul 12.
Article in English | MEDLINE | ID: mdl-39003206

ABSTRACT

The maximum cumulative life span of kidneys and livers first in donors and then in transplant recipients has not been established. The purpose of this study was to determine if cumulative organ function for more than 90 years is possible for transplanted kidneys and livers. This study included kidney and liver transplants from living or deceased donors ≥55 years. Cumulative organ function (COF) = Organ Age at Donation [Years] + Tx Allograft Function [Years]. Univariate and multivariable methods were used to describe characteristics and outcomes. Between 1987 and 2022, a total of 81,807 kidney and 37,099 liver transplants were included in this study. Of all kidney grafts 2.7% but 16.6% of all liver grafts reached the 90-year COF mark. There were only 2 living donor kidneys that surpassed the 100-year mark versus 29 deceased liver grafts. The longest kidney function was 104 years and longest liver function 108 years. Multivariate analysis showed that optimal donor and recipient selection and management are predictors for allograft longevity. COF in organs exceeding 100 physiologic years is possible. Extended organ longevity was 5 times more common for livers than kidneys. These analyses support that age alone should not exclude older kidney and liver donors from consideration for transplantation.

2.
Ann Surg ; 2024 Jun 25.
Article in English | MEDLINE | ID: mdl-38916985

ABSTRACT

OBJECTIVE: To describe the evolution of pancreas transplantation, including improved outcomes and factors associated with improved outcomes over the past five decades. BACKGROUND: The world's first successful pancreas transplant was performed in December 1966 at the University of Minnesota. As new modalities for diabetes treatment mature, we must carefully assess the current state of pancreas transplantation to determine its ongoing role in patient care. METHODS: A single-center retrospective review of 2,500 pancreas transplants performed over >50 years in bivariate and multivariable models. Transplants were divided into six eras; outcomes are presented for the entire cohort and by era. RESULTS: All measures of patient and graft survival improved progressively through the six transplant eras. The overall death censored (DC) pancreas graft half-lives were >35 years for simultaneous pancreas and kidney (SPK), 7.1 years for pancreas after kidney (PAK), and 3.3 years for pancreas transplants alone (PTA). The 10-year DC pancreas graft survival rate in the most recent era was 86.9% for SPK recipients, 58.2% for PAK recipients, and 47.6% for PTA. Overall graft loss was most influenced by patient survival in SPK transplants, whereas graft loss in PAK and PTA recipients was more often due to graft failures. Predictors of improved pancreas graft survival were primary transplants, bladder drainage of exocrine secretions, younger donor age, and shorter preservation time. CONCLUSIONS: Pancreas outcomes have significantly improved over time via sequential, but overlapping, advances in surgical technique, immunosuppressive protocols, reduced preservation time, and the more recent reduction of immune-mediated graft loss.

3.
Am J Transplant ; 24(3): 362-379, 2024 Mar.
Article in English | MEDLINE | ID: mdl-37871799

ABSTRACT

The Banff pancreas working schema for diagnosis and grading of rejection is widely used for treatment guidance and risk stratification in centers that perform pancreas allograft biopsies. Since the last update, various studies have provided additional insight regarding the application of the schema and enhanced our understanding of additional clinicopathologic entities. This update aims to clarify terminology and lesion description for T cell-mediated and antibody-mediated allograft rejections, in both active and chronic forms. In addition, morphologic and immunohistochemical tools are described to help distinguish rejection from nonrejection pathologies. For the first time, a clinicopathologic approach to islet pathology in the early and late posttransplant periods is discussed. This update also includes a discussion and recommendations on the utilization of endoscopic duodenal donor cuff biopsies as surrogates for pancreas biopsies in various clinical settings. Finally, an analysis and recommendations on the use of donor-derived cell-free DNA for monitoring pancreas graft recipients are provided. This multidisciplinary effort assesses the current role of pancreas allograft biopsies and offers practical guidelines that can be helpful to pancreas transplant practitioners as well as experienced pathologists and pathologists in training.


Subject(s)
Pancreas Transplantation , Transplantation, Homologous , Biopsy , Isoantibodies , T-Lymphocytes
4.
Transplant Direct ; 10(1): e1543, 2024 Jan.
Article in English | MEDLINE | ID: mdl-38094134

ABSTRACT

Despite the continued improvements in pancreas transplant outcomes in recent decades, a subset of recipients experience graft failure and can experience substantial morbidity and mortality. Here, we summarize what is known about the failed pancreas allograft and what factors are important for consideration of retransplantation. The current definition of pancreas allograft failure and its challenges for the transplant community are explored. The impacts of a failed pancreas allograft are presented, including patient survival and resultant morbidities. The signs, symptoms, and medical and surgical management of a failed pancreas allograft are described, whereas the options and consequences of immunosuppression withdrawal are reviewed. Medical and surgical factors necessary for successful retransplant candidacy are detailed with emphasis on how well-selected patients may achieve excellent retransplant outcomes. To achieve substantial medical mitigation and even pancreas retransplantation, patients with a failed pancreas allograft warrant special attention to their residual renal, cardiovascular, and pulmonary function. Future studies of the failed pancreas allograft will require improved reporting of graft failure from transplant centers and continued investigation from experienced centers.

5.
Parkinsonism Relat Disord ; 115: 105811, 2023 Oct.
Article in English | MEDLINE | ID: mdl-37657299

ABSTRACT

BACKGROUND: DBS is an effective surgical treatment for ET, PD, and dystonia. Racial disparities in DBS utilization in PD have been documented demonstrating that Black patients receive DBS at lower rates than White patients. To our knowledge, no studies have investigated if this pattern of non-use persists in other movement disorders with FDA-approval. OBJECTIVE: To identify racial and ethnic disparities in DBS utilization in those hospitalized for ET, PD, and dystonia. METHODS: The NIS database was queried for US hospitalizations from 2012 to 2018 with a primary diagnosis of ET, PD, or dystonia, and a total of 3,363, 21,963, and 1,835 discharges were recorded, respectively. Within that sample, treatment with DBS was identified. Sex, race, age, payment method, income quartile, year, mortality risk, hospital size, urban/rural setting, teaching status, and geographic region were extracted. A multivariate logistic regression was performed to identify predictors for use and non-use of DBS. RESULTS: Between 2012 and 2018, Black patients with PD, ET, and dystonia were less likely to receive DBS than White patients. Black patients with PD were 7 times less likely to receive DBS (OR = 0.145, CI = 0.111-0.189), and Black patients with ET and dystonia were 5 times less likely to receive DBS than White patients (OR = 0.188, CI = 0.124-0.285; OR = 0.186, CI = 0.084-0.414). Compared to White patients, Hispanic patients with PD (OR = 0.631, OR = 0.539-0.740) and ET (OR = 0.438, CI = 0.277-0.695) were less likely to undergo DBS. When controlling for patient and hospital level characteristics, racial and ethnic disparities remained. CONCLUSIONS: Our data suggest that Black patients with a diagnosis of ET, PD, or dystonia and Hispanic patients with a diagnosis of ET or PD were less likely to be treated with DBS than White patients between 2012 and 2018.

6.
Clin Transplant ; 37(10): e15063, 2023 Oct.
Article in English | MEDLINE | ID: mdl-37392191

ABSTRACT

BACKGROUND: There remains a paucity of modern data comparing early steroid withdrawal (ESW) versus chronic corticosteroid (CCS) immunosuppression in simultaneous pancreas kidney (SPK) transplant recipients with long-term follow-up. Therefore, the purpose of this study is to assess the effectiveness and tolerability of ESW compared to CCS post-SPK. METHODS: This was a retrospective single-center matched comparison with the International Pancreas Transplant Registry (IPTR). Patients from University of Illinois Hospital (UIH) represented the ESW group and were compared to those matched CCS patients from the IPTR. Included patients were adult recipients of a primary SPK transplant between 2003 and 2018 within the US receiving rabbit anti-thymocyte globulin induction. Patients were excluded if they had early technical failures, missing IPTR data, graft thrombosis, re-transplant, or positive crossmatch SPK. RESULTS: A total of 156 patients were matched and included in the analysis. Patients were predominantly African American (46.15%) males (64.1%) with Type 1 diabetes etiology (92.31%). Overall pancreas allograft survival (hazard ratio [HR] = .89, 95% confidence interval [CI] .34-2.30, p = .81) and kidney allograft survival (HR = .80, 95%CI .32-2.03, p = .64) were similar between the two groups. Immunologic pancreas allograft loss was statistically similar at 1-year (ESW 1.3% vs. CCS 0%, p = .16), 5-year (ESW 1.3% vs. CCS 7.7%, p = .16), and 10-year (ESW 11.0% vs. CCS 7.7%, p = .99). The 1-year (ESW 2.6% vs. CCS 0%, p > .05), 5-year (ESW 8.3% vs. CCS 7.0%, p > .05), and 10-year (ESW 22.7% vs. CCS 9.9%, p = .2575) immunologic kidney allograft loss were also statistically similar. There was no difference in 10-year overall patient survival (ESW 76.2% vs. CCS 65.6%, p = .63). CONCLUSIONS: No differences were found between allograft or patient survival post-SPK when comparing an ESW or CCS protocol. Future assessment is needed to determine differences in metabolic outcomes.

7.
Transplantation ; 107(9): 1870-1873, 2023 09 01.
Article in English | MEDLINE | ID: mdl-37314468
8.
Arch Phys Med Rehabil ; 104(10): 1573-1579, 2023 10.
Article in English | MEDLINE | ID: mdl-37295706

ABSTRACT

OBJECTIVE: Investigate stroke survivors' (SS) preferences for a hypothetical mHealth app for post-stroke care and to study the influence of demographic variables on these preferences. DESIGN: Mixed-methods, sequential, observational study. SETTING: Focus groups (phase 1) were conducted to identify SS perceptions and knowledge of mHealth applications (apps). Using grounded theory approach, recurring themes were identified. A multiple-choice questionnaire of 5 desired app features was generated using these themes and mailed to SS (national survey, phase 2). SS' demographics and perceived usefulness (yes/no) for each feature were recorded. In-person usability testing (phase 3) was conducted to identify areas of improvement in user interfaces of existing apps. Summative telephone interviews (phase 4) were conducted for final impressions supplementary to national survey. PARTICIPANTS: SS aged >18 years recruited from study hospital, national stroke association database, stroke support and advocacy groups. Non-English speakers and those unable to communicate were excluded. INTERVENTIONS: None. MAIN OUTCOME MEASURES: (1) Percentage of SS (phase 2) identifying proposed app features to be useful. (2) Influence of age, sex, race, education, and time since stroke on perceived usefulness. RESULTS: Ninety-six SS participated in focus groups. High cost, complexity, and lack of technical support were identified as barriers to adoption of mHealth apps. In the national survey (n=1194), ability to track fitness and diet (84%) and communication (70%) were the most and least useful features, respectively. Perceived usefulness was higher among younger SS (P<.001 to .006) and SS of color (African American and Hispanic) (ORs 1.73-4.41). Simple design and accommodation for neurologic deficits were main recommendations from usability testing. CONCLUSIONS: SS are willing to adopt mHealth apps that are free of cost and provide technical support. Apps for SS should perform multiple tasks and be of simple design. Greater interest for the app's features among SS of color may provide opportunities to address health inequities.


Subject(s)
Mobile Applications , Humans , Patient Preference , Focus Groups , Surveys and Questionnaires , Survivors
9.
Eur J Endocrinol ; 188(4): R73-R87, 2023 Apr 05.
Article in English | MEDLINE | ID: mdl-36929837

ABSTRACT

Successful pancreas or islet transplantation is currently the only cure for type 1 diabetes mellitus. Since the first pancreas transplant in 1966, there have been various refinements of surgical technique along with improved immunosuppressive regimens, resulting in significantly improved outcomes, with contemporary research into graft monitoring and newer biomarkers, potentially lengthening graft survival rates further. Patients with insulin-dependent diabetes mellitus who are eligible for pancreas or islet transplantation represent a select group, the tip of the iceberg for a significant global diabetes disease burden. In the last 50 years, there have been quantum advances in alternative technologies in diabetes therapy, both experimental and translational. Further development and improved access are required to treat the larger proportion of people suffering from diabetes. Emerging stem cell therapy is still experimental whereas alternatives including automated insulin delivery systems and islet cell transplantation are already used in some countries. Whilst automated insulin delivery systems have increased in efficacy, they still do not achieve the near physiological control of blood sugar, which can be achieved by successful pancreas or islet transplantation. This state-of-the-art review provides a summary of pancreas and islet transplantation to its current place in diabetes therapy, along with alternative and future therapies, including the obstacles associated with the dissemination of these new therapies. With the advent of these modern cellular and technological advances, this review addresses the question: are we entering an era where whole organ pancreas transplantation could be replaced entirely by modern technological advances in diabetes therapy?


Subject(s)
Diabetes Mellitus, Type 1 , Insulins , Islets of Langerhans Transplantation , Pancreas Transplantation , Humans , Pancreas Transplantation/methods , Islets of Langerhans Transplantation/methods , Diabetes Mellitus, Type 1/therapy , Immunosuppressive Agents
10.
Am J Transplant ; 23(5): 642-648, 2023 05.
Article in English | MEDLINE | ID: mdl-36775204

ABSTRACT

Robotic-assisted kidney transplant (RAKT) has proven to be a successful approach for patients with elevated body mass index (BMI). To date, a paucity of studies comprehensively analyzing the clinical outcomes of RAKT by using the grafts from deceased donors exists. This was a single-center retrospective analysis of RAKT from deceased donor kidneys (n = 93) from 2009 to 2021. The cohort was divided into 3 groups on the basis of recipient BMI (BMI ≤ 41.2 vs BMI 41.2-44.5 vs BMI ≥ 44.5 kg/m2, n = 31). Delayed graft function was significantly higher in the group with the highest BMI (BMI ≤ 41.2 vs BMI 41.2-44.5 vs BMI ≥ 44.5 kg/m2, 12.5% vs 10% vs 45.16%, P = .001). Graft survival after 12 months of follow-up was significantly lower in the group with BMI of ≥44.5 kg/m2 (BMI ≤ 41.2 vs BMI 41.2-44.5 vs BMI ≥ 44.5 kg/m2, 93.7% vs 100% vs 83.9%. P = .05). For BMI, the relative risk of patient survival was 1.10 for each increase in a BMI in the range of 5 (CI 95%, 0.98-1.21). Death-censored graft survival after 5 years was significantly better than the UNOS-matched cohort (dRAKT vs match, 86.2% vs 68.9%, P = .03). This single-center analysis shows that RAKT can be performed safely; however, caution should be used when matching marginal kidneys with patients with high BMI.


Subject(s)
Kidney Transplantation , Robotic Surgical Procedures , Humans , Retrospective Studies , Treatment Outcome , Tissue Donors , Kidney , Graft Survival
11.
Clin Transplant ; 37(4): e14923, 2023 04.
Article in English | MEDLINE | ID: mdl-36700660

ABSTRACT

INTRODUCTION: Dual organ donation and transplantation from living donors (LDs) is a rare practice. Dual organ transplants can be done from the same LD or from different LDs and either simultaneously or sequentially. Simultaneous dual organ transplants from the same LD are of considerable concern due to the magnitude of the donor procedure. METHODS AND RESULTS: According to the UNOS/OPTN and IPTR databases, the US experience of LD dual organ transplants from 1981 to 2021 comprised 101 simultaneous or sequential dual organ transplants from the same LD and 111 transplants from different LDs for a total of 212 LD dual transplants. The first simultaneous or sequential dual organ transplants from either the same LD or different LDs were pancreas-kidney transplants (n = 92). Four additional LD organ transplant combinations have been performed in the United States: liver-kidney (n = 93), lung-kidney (n = 16), liver-intestine (n = 9), and intestine-kidney (n = 2). Only for dual pancreas-kidney (n = 49) and liver-intestinal transplants (n = 4), organs from the same LD have been procured simultaneously. Importantly, no donor deaths have been reported after any simultaneous or sequential procurement. LD dual organ outcomes in all recipient categories have been excellent. CONCLUSIONS: LD dual organ donation and transplantation is safe and successful. Any potential dual organ LD candidate must be subject to the highest level of evaluation scrutiny. A (dual) organ donor registry is warranted for long-term follow-up.


Subject(s)
Kidney Transplantation , Organ Transplantation , Tissue and Organ Procurement , Humans , United States , Living Donors , Graft Survival , Tissue Donors , Registries
12.
J Clin Endocrinol Metab ; 108(3): 614-623, 2023 02 15.
Article in English | MEDLINE | ID: mdl-36377963

ABSTRACT

Pancreas transplantation (PTx) reestablishes an autoregulating source of endogenous insulin responsive to normal feedback controls. In addition to achieving complete ß-cell replacement that frees the patient with diabetes from the need to monitor serum glucose and administer exogenous insulin, successful PTx provides counterregulatory hormone secretion and exocrine function. A functioning PTx mitigates glycemic variability, eliminates the daily stigma and burden of diabetes, restores normal glucose homeostasis in patients with complicated diabetes, and improves quality of life and life expectancy. The tradeoff is that it entails a major surgical procedure and requisite long-term immunosuppression. Despite the high likelihood of rendering patients euglycemic independent of exogenous insulin, PTx is considered a treatment rather than a cure. In spite of steadily improving outcomes in each successive era coupled with expansion of recipient selection criteria to include patients with a type 2 diabetes phenotype, a decline in PTx activity has occurred in the new millennium related to a number of factors including: (1) lack of a primary referral source and general acceptance by the diabetes care community; (2) absence of consensus criteria; and (3) access, education, and resource issues within the transplant community. In the author's experience, patients who present as potential candidates for PTx have felt as though they needed to circumvent the conventional diabetes care model to gain access to transplant options. PTx should be featured more prominently in the management algorithms for patients with insulin requiring diabetes who are failing exogenous insulin therapy or experiencing progressive diabetic complications regardless of diabetes type. Furthermore, all patients with diabetes and chronic kidney disease should undergo consideration for simultaneous pancreas-kidney transplantation independent of geography or location.


Subject(s)
Diabetes Mellitus, Type 1 , Diabetes Mellitus, Type 2 , Pancreas Transplantation , Humans , Pancreas Transplantation/adverse effects , Pancreas Transplantation/methods , Diabetes Mellitus, Type 2/etiology , Quality of Life , Diabetes Mellitus, Type 1/therapy , Insulin , Glucose
13.
Transplant Proc ; 54(7): 1918-1943, 2022 Sep.
Article in English | MEDLINE | ID: mdl-35970624

ABSTRACT

Over the last decades, the number of pancreas transplants has increased all over the world. Since the first pancreas transplant in 1966, patient and graft survival after simultaneous pancreas and kidney as well as after solitary pancreas transplantation have improved significantly. Patient survival at 1 year is >96% in all 3 recipient categories and pancreas graft survival is >90% for simultaneous pancreas and kidney and >86% for solitary transplants. For transplants performed between 2001 and 2010, with >10 years' follow-up time, the half-life (50% graft function) was 13 years for simultaneous pancreas and kidney, almost 10 years for a pancreas after kidney transplant, and >6 years for a pancreas transplant alone. These excellent results are even more astonishing because more high-risk patients were transplanted. The main reasons for improvement in outcome were reductions in technical failures and immunologic graft losses. These decreases were due to better patient and donor selection, standardization of surgical techniques, and superior immunosuppressive protocols.


Subject(s)
Kidney Transplantation , Pancreas Transplantation , Humans , Pancreas Transplantation/adverse effects , Registries , Graft Survival , Kidney Transplantation/adverse effects , Immunosuppressive Agents/therapeutic use
15.
Am J Transplant ; 21 Suppl 3: 17-59, 2021 09.
Article in English | MEDLINE | ID: mdl-34245223

ABSTRACT

The First World Consensus Conference on Pancreas Transplantation provided 49 jury deliberations regarding the impact of pancreas transplantation on the treatment of diabetic patients, and 110 experts' recommendations for the practice of pancreas transplantation. The main message from this consensus conference is that both simultaneous pancreas-kidney transplantation (SPK) and pancreas transplantation alone can improve long-term patient survival, and all types of pancreas transplantation dramatically improve the quality of life of recipients. Pancreas transplantation may also improve the course of chronic complications of diabetes, depending on their severity. Therefore, the advantages of pancreas transplantation appear to clearly surpass potential disadvantages. Pancreas after kidney transplantation increases the risk of mortality only in the early period after transplantation, but is associated with improved life expectancy thereafter. Additionally, preemptive SPK, when compared to SPK performed in patients undergoing dialysis, appears to be associated with improved outcomes. Time on dialysis has negative prognostic implications in SPK recipients. Increased long-term survival, improvement in the course of diabetic complications, and amelioration of quality of life justify preferential allocation of kidney grafts to SPK recipients. Audience discussions and live voting are available online at the following URL address: http://mediaeventi.unipi.it/category/1st-world-consensus-conference-of-pancreas-transplantation/246.


Subject(s)
Diabetes Mellitus, Type 1 , Kidney Transplantation , Pancreas Transplantation , Graft Survival , Humans , Quality of Life , Renal Dialysis
16.
Transplant Proc ; 53(3): 913-919, 2021 Apr.
Article in English | MEDLINE | ID: mdl-32977978

ABSTRACT

There is an increase in older-adult renal transplant recipients in United States. The objective of this study was to assess the association between physical function (PF) and patient survival in renal transplant recipients who are aged 65 years or older. Using United Network for Organ Sharing (UNOS) data from 2007 to 2016, renal transplant recipients aged 65 years or older were included. Multivariable Cox regression was used to assess associations between survival and functional status adjusted for age, sex, race, donor quality, diabetes, and dialysis vintage. The study identified 26,721 patients. Patient survival was significantly higher in recipients who needed no assistance and lowest in patients in need of total assistance (P < .0001). In deceased donor (DD) transplants, the relative risk for mortality was 2.06 (1.74-2.43) for total assistance and 1.17 (1.08-1.28) for moderate assistance compared to no assistance (P < .0001). In living donor (LD) transplants, the relative risk of mortality was 1.38 (0.78-2.42) for patients needing total assistance and 1.37 (1.14-1.65) for patients needing moderate assistance compared to patients who did not need assistance (0.003). PF is an independent predictor of post-transplant mortality. Assessment of older potential renal transplant recipients should include assessment and standardization of functional status to counsel about post-transplant survival.


Subject(s)
Kidney Transplantation/mortality , Kidney Transplantation/methods , Physical Fitness , Transplant Recipients , Age Factors , Aged , Female , Humans , Male , United States
17.
SAGE Open Med ; 8: 2050312120934839, 2020.
Article in English | MEDLINE | ID: mdl-32637104

ABSTRACT

Universally, the volume of data has increased, with the collection rate doubling every 40 months, since the 1980s. "Big data" is a term that was introduced in the 1990s to include data sets too large to be used with common software. Medicine is a major field predicted to increase the use of big data in 2025. Big data in medicine may be used by commercial, academic, government, and public sectors. It includes biologic, biometric, and electronic health data. Examples of biologic data include biobanks; biometric data may have individual wellness data from devices; electronic health data include the medical record; and other data demographics and images. Big data has also contributed to the changes in the research methodology. Changes in the clinical research paradigm has been fueled by large-scale biological data harvesting (biobanks), which is developed, analyzed, and managed by cheaper computing technology (big data), supported by greater flexibility in study design (real-world data) and the relationships between industry, government regulators, and academics. Cultural changes along with easy access to information via the Internet facilitate ease of participation by more people. Current needs demand quick answers which may be supplied by big data, biobanks, and changes in flexibility in study design. Big data can reveal health patterns, and promises to provide solutions that have previously been out of society's grasp; however, the murkiness of international laws, questions of data ownership, public ignorance, and privacy and security concerns are slowing down the progress that could otherwise be achieved by the use of big data. The goal of this descriptive review is to create awareness of the ramifications for big data and to encourage readers that this trend is positive and will likely lead to better clinical solutions, but, caution must be exercised to reduce harm.

18.
Clin Transplant ; 34(7): e13893, 2020 07.
Article in English | MEDLINE | ID: mdl-32365253

ABSTRACT

BACKGROUND: Drug dosing for Tacrolimus (TAC) and Mycophenolate Mofetil (MMF) after kidney transplantation remains challenging. Therapeutic drug monitoring (TDM) offers a means to individualize drug dosing and improve outcomes. METHODS: In this observational study, patients having mycophenolic acid (MPA) exposure assessed by limited sampling strategy (LSS) within the first 6 months were included and followed for 1 year. RESULTS: A total of 113 clinical events occurring in 110 patients were classified into 3 groups: Group 1 Stable (n = 34), Group 2 Over drug exposed (n = 64) having infections or drug toxicity and Group 3 Under drug exposed (n = 15) developing rejection or de novo donor-specific alloantibodies. Although TAC levels, MMF dose, MPA, and MPA Glucuronide (MPAG) exposure, expressed as area under curve (AUC), individually failed to predict outcomes, a scoring model incorporating all 3 drug levels TAC TDM × (MPA AUC + MPAG/10 AUC) correctly classified outcomes. A score over 1071 had a sensitivity and specificity of 0.94 (95% CI 0.56-0.83) and 0.84 (95% CI 0.69-0.89) for over exposure. A score below 625 had a sensitivity and specificity of 0.76 (95% CI 0.53-0.93) and 0.80 (95% CI 0.41-0.70) for under exposure. CONCLUSIONS: This integrated model of assessing TAC and MMF exposure may facilitate individualized therapy.


Subject(s)
Immunosuppressive Agents , Kidney Transplantation , Mycophenolic Acid , Tacrolimus , Area Under Curve , Drug Therapy, Combination , Humans , Immunosuppressive Agents/administration & dosage , Mycophenolic Acid/administration & dosage , Tacrolimus/administration & dosage
19.
Am Surg ; 86(1): 21-27, 2020 Jan 01.
Article in English | MEDLINE | ID: mdl-32077412

ABSTRACT

Hospital-acquired conditions (HACs) are used to define hospital performance measures. Patient comorbidity may influence HAC development. The National Inpatient Sample database was used to investigate HACs for the patients who underwent liver transplantation. Multivariate analysis was used to identify HAC risk factors. We found a total of 13,816 patients who underwent liver transplantation during 2002-2014. Of these, 330 (2.4%) had a report of HACs. Most frequent HACs were vascular catheter-associated infection [220 (1.6%)], falls and trauma [66 (0.5%), catheter-associated UTI [24 (0.2%)], and pressure ulcer stage III/IV [22 (0.2%)]. Factors correlating with HACs included extreme loss function (AOR: 52.13, P < 0.01) and major loss function (AOR: 8.11, P = 0.04), hepatopulmonary syndrome (AOR: 3.39, P = 0.02), portal hypertension (AOR: 1.49, P = 0.02), and hospitalization length of stay before transplant (AOR: 1.01, P < 0.01). The rate of HACs for liver transplantation is three times higher than the reported overall rate of HACs for GI procedures. Multiple patient factors are associated with HACs, and HACs may not be a reliable measure to evaluate hospital performance. Vascular catheter-associated infection is the most common HAC after liver transplantation.


Subject(s)
Iatrogenic Disease/epidemiology , Liver Transplantation , Postoperative Complications/epidemiology , Adult , Aged , Comorbidity , Female , Hospital Mortality , Humans , Male , Middle Aged , Postoperative Complications/mortality , Risk Factors , United States/epidemiology
20.
Clin Med Insights Circ Respir Pulm Med ; 14: 1179548420980699, 2020.
Article in English | MEDLINE | ID: mdl-33402859

ABSTRACT

BACKGROUND: Coronavirus disease-19 (COVID-19) is associated with acute kidney injury (AKI) and acute respiratory distress syndrome (ARDS) with high mortality rates. In African American (AA) populations, COVID-19 presentations and outcomes are more severe. NIH and Interim WHO guidelines had suggested against the use of corticosteroids unless in clinical trials until the recent publication of the RECOVERY trial. Here, we analyzed the treatment effect of methylprednisolone on patients with AKI and ARDS during the initial 2 months of COVID-19 and detail the learning effect within our institution. METHODS: Between March 1 and April 30, 2020, 75 AA patients met our inclusion criteria for ARDS and AKI, of which 37 had received corticosteroids. Twenty-eight-day mortality, improvement in PaO2/FiO2 ratio, and renal function were analyzed. The impact of methylprednisolone treatment was assessed with multivariable methods. RESULTS: Survival in the methylprednisolone group reached 51% at 21 days compared to 29% in the non-corticosteroid group (P < .001). Methylprednisolone improved the likelihood of renal function improvement. PaO2/FiO2 ratio in the methylprednisolone group improved by 73% compared to 45% in the non-corticosteroid group (P = .01). Age, gender, BMI, preexisting conditions, and other treatment factors did not show any impact on renal or PaO2/FiO2 ratio improvement. The use of anticoagulants, the month of treatment, and AKI during hospitalization also influenced outcomes. CONCLUSION: In AA COVID-19 positive patients with ARDS and AKI, IV methylprednisolone lowered the incidence of mortality and improved the likelihood of renal and lung function recovery. Further investigation with a randomized control trial of corticosteroids is warranted.

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