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1.
JAMA Surg ; 2024 May 29.
Artículo en Inglés | MEDLINE | ID: mdl-38809546

RESUMEN

Importance: A new liver allocation policy was implemented by United Network for Organ Sharing (UNOS) in February 2020 with the stated intent of improving access to liver transplant (LT). There are growing concerns nationally regarding the implications this new system may have on LT costs, as well as access to a chance for LT, which have not been captured at a multicenter level. Objective: To characterize LT volume and cost changes across the US and within specific center groups and demographics after the policy implementation. Design, Setting, and Participants: This cross-sectional study collected and reviewed LT volume from multiple centers across the US and cost data with attention to 8 specific center demographics. Two separate 12-month eras were compared, before and after the new UNOS allocation policy: March 4, 2019, to March 4, 2020, and March 5, 2020, to March 5, 2021. Data analysis was performed from May to December 2022. Main Outcomes and Measures: Center volume, changes in cost. Results: A total of 22 of 68 centers responded comparing 1948 LTs before the policy change and 1837 LTs postpolicy, resulting in a 6% volume decrease. Transplants using local donations after brain death decreased 54% (P < .001) while imported donations after brain death increased 133% (P = .003). Imported fly-outs and dry runs increased 163% (median, 19; range, 1-75, vs 50, range, 2-91; P = .009) and 33% (median, 3; range, 0-16, vs 7, range, 0-24; P = .02). Overall hospital costs increased 10.9% to a total of $46 360 176 (P = .94) for participating centers. There was a 77% fly-out cost increase postpolicy ($10 600 234; P = .03). On subanalysis, centers with decreased LT volume postpolicy observed higher overall hospital costs ($41 720 365; P = .048), and specifically, a 122% cost increase for liver imports ($6 508 480; P = .002). Transplant centers from low-income states showed a significant increase in hospital (12%) and import (94%) costs. Centers serving populations with larger proportions of racial and ethnic minority candidates and specifically Black candidates significantly increased costs by more than 90% for imported livers, fly-outs, and dry runs despite lower LT volume. Similarly, costs increased significantly (>100%) for fly-outs and dry runs in centers from worse-performing health systems. Conclusions and Relevance: Based on this large multicenter effort and contrary to current assumptions, the new liver distribution system appears to place a disproportionate burden on populations of the current LT community who already experience disparities in health care. The continuous allocation policies being promoted by UNOS could make the situation even worse.

2.
JAMA Surg ; 159(6): 677-685, 2024 Jun 01.
Artículo en Inglés | MEDLINE | ID: mdl-38568597

RESUMEN

Importance: Normothermic regional perfusion (NRP) is an emerging recovery modality for transplantable allografts from controlled donation after circulatory death (cDCD) donors. In the US, only 11.4% of liver recipients who are transplanted from a deceased donor receive a cDCD liver. NRP has the potential to safely expand the US donor pool with improved transplant outcomes as compared with standard super rapid recovery (SRR). Objective: To assess outcomes of US liver transplants using controlled donation after circulatory death livers recovered with normothermic regional perfusion vs standard super rapid recovery. Design, Setting, and Participants: This was a retrospective, observational cohort study comparing liver transplant outcomes from cDCD donors recovered by NRP vs SRR. Outcomes of cDCD liver transplant from January 2017 to May 2023 were collated from 17 US transplant centers and included livers recovered by SRR and NRP (thoracoabdominal NRP [TA-NRP] and abdominal NRP [A-NRP]). Seven transplant centers used NRP, allowing for liver allografts to be transplanted at 17 centers; 10 centers imported livers recovered via NRP from other centers. Exposures: cDCD livers were recovered by either NRP or SRR. Main Outcomes and Measures: The primary outcome was ischemic cholangiopathy (IC). Secondary end points included primary nonfunction (PNF), early allograft dysfunction (EAD), biliary anastomotic strictures, posttransplant length of stay (LOS), and patient and graft survival. Results: A total of 242 cDCD livers were included in this study: 136 recovered by SRR and 106 recovered by NRP (TA-NRP, 79 and A-NRP, 27). Median (IQR) NRP and SRR donor age was 30.5 (22-44) years and 36 (27-49) years, respectively. Median (IQR) posttransplant LOS was significantly shorter in the NRP cohort (7 [5-11] days vs 10 [7-16] days; P < .001). PNF occurred only in the SRR allografts group (n = 2). EAD was more common in the SRR cohort (123 of 136 [56.1%] vs 77 of 106 [36.4%]; P = .007). Biliary anastomotic strictures were increased 2.8-fold in SRR recipients (7 of 105 [6.7%] vs 30 of 134 [22.4%]; P = .001). Only SRR recipients had IC (0 vs 12 of 133 [9.0%]; P = .002); IC-free survival by Kaplan-Meier was significantly improved in NRP recipients. Patient and graft survival were comparable between cohorts. Conclusion and Relevance: There was comparable patient and graft survival in liver transplant recipients of cDCD donors recovered by NRP vs SRR, with reduced rates of IC, biliary complications, and EAD in NRP recipients. The feasibility of A-NRP and TA-NRP implementation across multiple US transplant centers supports increasing adoption of NRP to improve organ use, access to transplant, and risk of wait-list mortality.


Asunto(s)
Supervivencia de Injerto , Trasplante de Hígado , Perfusión , Humanos , Femenino , Masculino , Estudios Retrospectivos , Persona de Mediana Edad , Perfusión/métodos , Estados Unidos/epidemiología , Adulto , Preservación de Órganos/métodos , Donantes de Tejidos
3.
J Am Coll Surg ; 238(1): 107-118, 2024 Jan 01.
Artículo en Inglés | MEDLINE | ID: mdl-37772721

RESUMEN

BACKGROUND: Normothermic regional perfusion (NRP) is a technique that is intended to enhance organ transplant outcomes from donation circulatory death (DCD) donors. STUDY DESIGN: A retrospective analysis of data from the Scientific Registry of Transplant Recipients was performed. DCD donors were screened for inclusion based on date of donation 2020 or later, and whether the heart was also recovered for transplantation. We grouped donors as either donation after brain death or DCD. DCD donors were further divided into groups including those in which the heart was not recovered for transplant (Non-Heart DCD) and those in which it was, based on recovery technique (thoracoabdominal-NRP [TA-NRP] Heart DCD and Super Rapid Recovery Heart DCD). RESULTS: A total of 219 kidney transplant recipients receiving organs from TA-NRP Heart DCD donors were compared to 436 SRR Super Rapid Recovery DCD, 10,630 Super Rapid Recovery non-heart DCD, and 27,820 donations after brain death recipients. Kidney transplant recipients of TA-NRP DCD allografts experienced shorter length of stay, lower rates of delayed graft function, and lower serum creatinine at the time of discharge when compared with recipients of other DCD allografts. CONCLUSIONS: Our analysis demonstrates superior early kidney allograft function when TA-NRP is used for DCD organ recovery.


Asunto(s)
Trasplante de Riñón , Obtención de Tejidos y Órganos , Humanos , Muerte Encefálica , Estudios Retrospectivos , Perfusión/métodos , Donantes de Tejidos , Supervivencia de Injerto , Preservación de Órganos/métodos , Muerte
4.
Liver Transpl ; 29(7): 683-697, 2023 07 01.
Artículo en Inglés | MEDLINE | ID: mdl-37029083

RESUMEN

HCC recurrence following liver transplantation (LT) is highly morbid and occurs despite strict patient selection criteria. Individualized prediction of post-LT HCC recurrence risk remains an important need. Clinico-radiologic and pathologic data of 4981 patients with HCC undergoing LT from the US Multicenter HCC Transplant Consortium (UMHTC) were analyzed to develop a REcurrent Liver cAncer Prediction ScorE (RELAPSE). Multivariable Fine and Gray competing risk analysis and machine learning algorithms (Random Survival Forest and Classification and Regression Tree models) identified variables to model HCC recurrence. RELAPSE was externally validated in 1160 HCC LT recipients from the European Hepatocellular Cancer Liver Transplant study group. Of 4981 UMHTC patients with HCC undergoing LT, 71.9% were within Milan criteria, 16.1% were initially beyond Milan criteria with 9.4% downstaged before LT, and 12.0% had incidental HCC on explant pathology. Overall and recurrence-free survival at 1, 3, and 5 years was 89.7%, 78.6%, and 69.8% and 86.8%, 74.9%, and 66.7%, respectively, with a 5-year incidence of HCC recurrence of 12.5% (median 16 months) and non-HCC mortality of 20.8%. A multivariable model identified maximum alpha-fetoprotein (HR = 1.35 per-log SD, 95% CI,1.22-1.50, p < 0.001), neutrophil-lymphocyte ratio (HR = 1.16 per-log SD, 95% CI,1.04-1.28, p < 0.006), pathologic maximum tumor diameter (HR = 1.53 per-log SD, 95% CI, 1.35-1.73, p < 0.001), microvascular (HR = 2.37, 95%-CI, 1.87-2.99, p < 0.001) and macrovascular (HR = 3.38, 95% CI, 2.41-4.75, p < 0.001) invasion, and tumor differentiation (moderate HR = 1.75, 95% CI, 1.29-2.37, p < 0.001; poor HR = 2.62, 95% CI, 1.54-3.32, p < 0.001) as independent variables predicting post-LT HCC recurrence (C-statistic = 0.78). Machine learning algorithms incorporating additional covariates improved prediction of recurrence (Random Survival Forest C-statistic = 0.81). Despite significant differences in European Hepatocellular Cancer Liver Transplant recipient radiologic, treatment, and pathologic characteristics, external validation of RELAPSE demonstrated consistent 2- and 5-year recurrence risk discrimination (AUCs 0.77 and 0.75, respectively). We developed and externally validated a RELAPSE score that accurately discriminates post-LT HCC recurrence risk and may allow for individualized post-LT surveillance, immunosuppression modification, and selection of high-risk patients for adjuvant therapies.


Asunto(s)
Carcinoma Hepatocelular , Neoplasias Hepáticas , Trasplante de Hígado , Humanos , Trasplante de Hígado/efectos adversos , Factores de Riesgo , Recurrencia Local de Neoplasia/patología , Estudios Retrospectivos , Recurrencia
5.
Liver Transpl ; 29(1): 34-47, 2023 01 01.
Artículo en Inglés | MEDLINE | ID: mdl-36630156

RESUMEN

NAFLD will soon be the most common indication for liver transplantation (LT). In NAFLD, HCC may occur at earlier stages of fibrosis and present with more advanced tumor stage, raising concern for aggressive disease. Thus, adult LT recipients with HCC from 20 US centers transplanted between 2002 and 2013 were analyzed to determine whether NAFLD impacts recurrence-free post-LT survival. Five hundred and thirty-eight (10.8%) of 4981 total patients had NAFLD. Patients with NAFLD were significantly older (63 vs. 58, p<0.001), had higher body mass index (30.5 vs. 27.4, p<0.001), and were more likely to have diabetes (57.3% vs. 28.8%, p<0.001). Patients with NAFLD were less likely to receive pre-LT locoregional therapy (63.6% vs. 72.9%, p<0.001), had higher median lab MELD (15 vs. 13, p<0.001) and neutrophil-lymphocyte ratio (3.8 vs. 2.9, p<0.001), and were more likely to have their maximum pre-LT alpha fetoprotein at time of LT (44.1% vs. 36.1%, p<0.001). NAFLD patients were more likely to have an incidental HCC on explant (19.4% vs. 10.4%, p<0.001); however, explant characteristics including tumor differentiation and vascular invasion were not different between groups. Comparing NAFLD and non-NAFLD patients, the 1, 3, and 5-year cumulative incidence of recurrence (3.1%, 9.1%, 11.5% vs. 4.9%, 10.1%, 12.6%, p=0.36) and recurrence-free survival rates (87%, 76%, and 67% vs. 87%, 75%, and 67%, p=0.97) were not different. In competing risks analysis, NAFLD did not significantly impact recurrence in univariable (HR: 0.88, p=0.36) nor in adjusted analysis (HR: 0.91, p=0.49). With NAFLD among the most common causes of HCC and poised to become the leading indication for LT, a better understanding of disease-specific models to predict recurrence is needed. In this NAFLD cohort, incidental HCCs were common, raising concerns about early detection. However, despite less locoregional therapy and high neutrophil-lymphocyte ratio, explant tumor characteristics and post-transplant recurrence-free survival were not different compared to non-NAFLD patients.


Asunto(s)
Carcinoma Hepatocelular , Neoplasias Hepáticas , Trasplante de Hígado , Enfermedad del Hígado Graso no Alcohólico , Adulto , Humanos , Carcinoma Hepatocelular/epidemiología , Carcinoma Hepatocelular/cirugía , Carcinoma Hepatocelular/patología , Neoplasias Hepáticas/epidemiología , Neoplasias Hepáticas/cirugía , Neoplasias Hepáticas/patología , Enfermedad del Hígado Graso no Alcohólico/complicaciones , Enfermedad del Hígado Graso no Alcohólico/epidemiología , Enfermedad del Hígado Graso no Alcohólico/cirugía , Trasplante de Hígado/efectos adversos , Estudios Retrospectivos , Recurrencia Local de Neoplasia/patología , Factores de Riesgo
6.
Ann Surg ; 276(5): 846-853, 2022 11 01.
Artículo en Inglés | MEDLINE | ID: mdl-35894433

RESUMEN

OBJECTIVE: To define benchmark values for liver transplantation (LT) in patients with perihilar cholangiocarcinoma (PHC) enabling unbiased comparisons. BACKGROUND: Transplantation for PHC is used with reluctance in many centers and even contraindicated in several countries. Although benchmark values for LT are available, there is a lack of specific data on LT performed for PHC. METHODS: PHC patients considered for LT after Mayo-like protocol were analyzed in 17 reference centers in 2 continents over the recent 5-year period (2014-2018). The minimum follow-up was 1 year. Benchmark patients were defined as operated at high-volume centers (≥50 overall LT/year) after neoadjuvant chemoradiotherapy, with a tumor diameter <3 cm, negative lymph nodes, and with the absence of relevant comorbidities. Benchmark cutoff values were derived from the 75th to 25th percentiles of the median values of all benchmark centers. RESULTS: One hundred thirty-four consecutive patients underwent LT after completion of the neoadjuvant treatment. Of those, 89.6% qualified as benchmark cases. Benchmark cutoffs were 90-day mortality ≤5.2%; comprehensive complication index at 1 year of ≤33.7; grade ≥3 complication rates ≤66.7%. These values were better than benchmark values for other indications of LT. Five-year disease-free survival was largely superior compared with a matched group of nodal negative patients undergoing curative liver resection (n=106) (62% vs 32%, P <0.001). CONCLUSION: This multicenter benchmark study demonstrates that LT offers excellent outcomes with superior oncological results in early stage PHC patients, even in candidates for surgery. This provocative observation should lead to a change in available therapeutic algorithms for PHC.


Asunto(s)
Neoplasias de los Conductos Biliares , Colangiocarcinoma , Tumor de Klatskin , Trasplante de Hígado , Benchmarking , Colangiocarcinoma/cirugía , Humanos , Tumor de Klatskin/patología , Tumor de Klatskin/cirugía , Nivel de Atención
7.
Am J Surg ; 224(5): 1285-1288, 2022 11.
Artículo en Inglés | MEDLINE | ID: mdl-35787911

RESUMEN

BACKGROUND: Previous cholecystectomy is common in patients with short bowel syndrome (SBS). An intact gallbladder is beneficial in preventing cirrhosis in SBS patients, but the nutritional consequences of cholecystectomy are largely unknown. Our aim was to evaluate the effect of pre-SBS cholecystectomy on need for chronic parenteral nutrition (PN). METHODS: We reviewed 485 adults with SBS: 267 underwent cholecystectomy prior to SBS and 218 patients had an intact gallbladder. Demographic data, intestinal anatomy, and nutritional outcome were compared. RESULTS: Pre-SBS cholecystectomy patients were more likely to have had postoperative SBS and BMI >35. Intestinal remnant length and anatomy type and performance of surgical rehabilitation procedures within the first year were similar. Overall, there was no significant difference in the need for PN > 1year between the two groups. There was also no significant difference in the need for PN > 1year in any specific subgroup of intestinal remnant length or intestinal anatomy. CONCLUSIONS: Cholecystectomy performed prior to the development of SBS does not influence the nutritional prognosis of SBS, regardless of the intestinal remnant length and anatomy type.


Asunto(s)
Síndrome del Intestino Corto , Adulto , Humanos , Síndrome del Intestino Corto/cirugía , Nutrición Parenteral , Colecistectomía , Intestinos , Pronóstico , Estudios Retrospectivos
8.
Pediatr Transplant ; 26(5): e14287, 2022 08.
Artículo en Inglés | MEDLINE | ID: mdl-35403329

RESUMEN

BACKGROUND: Pediatric myelodysplastic syndrome is a rare but life-threatening condition requiring prompt recognition and management. METHODS: We herein present the only reported case of a pediatric multi-organ transplant recipient developing myelodysplastic syndrome. RESULTS: The patient was a 14-year-old girl on chronic calcineurin inhibitor therapy who presented with peri-rectal pain approximately 13 years after liver, small bowel, and pancreas transplant. The initial workup revealed pancytopenia and parvovirus B19 viremia. Her definitive diagnosis was complicated by a lack of adequate bone marrow biopsy specimens and expert consultation that resulted in treatment for hemophagocytic lymphohistiocytosis. She was later diagnosed with high-grade myelodysplastic syndrome. Although curative treatment with chemotherapy and hematopoietic stem cell transplantation was strongly considered, it was not performed due to the child's rapid clinical progression, ventilator status, and active infections. The patient died approximately 6 months following symptom onset. CONCLUSIONS: This case emphasizes the importance of early recognition of myelodysplastic syndrome in multi-organ transplant recipients on chronic immunosuppression. Pancytopenia is a common presentation in the post-transplant period that requires thorough investigation. Multiple confounding considerations such as infection, immunosuppression, and systemic inflammation can delay the diagnosis of underlying hematological malignancies. Transplant care providers should be aware of myelodysplastic syndrome and advocate for a comprehensive evaluation, given early recognition and intervention can significantly improve outcomes.


Asunto(s)
Linfohistiocitosis Hemofagocítica , Síndromes Mielodisplásicos , Trasplante de Órganos , Pancitopenia , Adolescente , Médula Ósea/patología , Niño , Femenino , Humanos , Linfohistiocitosis Hemofagocítica/diagnóstico , Síndromes Mielodisplásicos/complicaciones , Síndromes Mielodisplásicos/diagnóstico , Síndromes Mielodisplásicos/terapia , Trasplante de Órganos/efectos adversos , Pancitopenia/diagnóstico , Pancitopenia/etiología
10.
Liver Transpl ; 27(5): 684-698, 2021 05.
Artículo en Inglés | MEDLINE | ID: mdl-33306254

RESUMEN

The incidence of hepatocellular carcinoma (HCC) is growing in the United States, especially among the elderly. Older patients are increasingly receiving transplants as a result of HCC, but the impact of advancing age on long-term posttransplant outcomes is not clear. To study this, we used data from the US Multicenter HCC Transplant Consortium of 4980 patients. We divided the patients into 4 groups by age at transplantation: 18 to 64 years (n = 4001), 65 to 69 years (n = 683), 70 to 74 years (n = 252), and ≥75 years (n = 44). There were no differences in HCC tumor stage, type of bridging locoregional therapy, or explant residual tumor between the groups. Older age was confirmed to be an independent and significant predictor of overall survival even after adjusting for demographic, etiologic, and cancer-related factors on multivariable analysis. A dose-response effect of age on survival was observed, with every 5-year increase in age older than 50 years resulting in an absolute increase of 8.3% in the mortality rate. Competing risk analysis revealed that older patients experienced higher rates of non-HCC-related mortality (P = 0.004), and not HCC-related death (P = 0.24). To delineate the precise cause of death, we further analyzed a single-center cohort of patients who received a transplant as a result of HCC (n = 302). Patients older than 65 years had a higher incidence of de novo cancer (18.1% versus 7.6%; P = 0.006) after transplantation and higher overall cancer-related mortality (14.3% versus 6.6%; P = 0.03). Even carefully selected elderly patients with HCC have significantly worse posttransplant survival rates, which are mostly driven by non-HCC-related causes. Minimizing immunosuppression and closer surveillance for de novo cancers can potentially improve the outcomes in elderly patients who received a transplant as a result of HCC.


Asunto(s)
Carcinoma Hepatocelular , Neoplasias Hepáticas , Trasplante de Hígado , Anciano , Carcinoma Hepatocelular/epidemiología , Carcinoma Hepatocelular/cirugía , Humanos , Neoplasias Hepáticas/epidemiología , Neoplasias Hepáticas/cirugía , Trasplante de Hígado/efectos adversos , Persona de Mediana Edad , Estudios Retrospectivos , Medición de Riesgo , Tasa de Supervivencia , Estados Unidos/epidemiología
11.
Pediatr Transplant ; 25(3): e13915, 2021 May.
Artículo en Inglés | MEDLINE | ID: mdl-33217110

RESUMEN

Ingestion of rare-earth magnet beads in children has been a public health concern. The potential risk of swallowing multiple magnets is related to magnet attraction to each other, resulting in serious gastrointestinal complications, such as entero-enteric fistula formation, peritonitis, bowel ischemia or necrosis, bowel perforation, and potentially death. We describe the clinical outcome of a 10-year-old child with a liver-small bowel-pancreas transplant who swallowed 26 rare-earth magnetic beads. The patient presented with fever and abdominal pain. Due to difficulty locating the magnets and post-surgical anatomy changes, only 25 magnets were removed endoscopically. After the procedure, she continued to have abdominal distention and fever, leading to further investigation and subsequently an exploratory laparotomy, which confirmed a walled-off perforation. She was treated conservatively with bowel rest and antibiotics, without the need for small bowel graft resection. She recovered well and was eventually discharged on her home enteral feeding regimen. This case emphasizes the importance of taking a good history and having a high index of suspicion to diagnose this dangerous clinical condition, especially in children with an associated predisposing condition for foreign body ingestion, such as developmental delay. Early diagnosis of multiple magnet bead ingestion and prompt detection of its complications in pediatric intestinal transplant recipients could help initiate appropriate intervention and prevent intestinal graft loss.


Asunto(s)
Cuerpos Extraños/etiología , Intestino Delgado/trasplante , Trasplante de Hígado , Imanes , Metales de Tierras Raras , Trasplante de Páncreas , Complicaciones Posoperatorias/etiología , Niño , Ingestión de Alimentos , Femenino , Humanos
12.
J Pediatr Surg ; 56(3): 454-458, 2021 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-32624206

RESUMEN

OBJECTIVE: Little is known about differences in immune function among children with multiple intestinal atresia (MIA) and those with isolated intestinal atresia (IA), and how such differences may manifest as infectious complications and patient outcomes. This study aimed to investigate the immune function and its impact on patient outcomes in IA and MIA children. METHODS: A single-center retrospective cohort study included children aged 0-19 years with intestinal atresia who were referred to a multidisciplinary intestinal rehabilitation program from 1/2000 to 12/2016. Data were collected for patient characteristics, surgical history, immunologic work-up, and infection-related hospitalizations. Groups of IA and MIA children were compared using chi-square test or Fisher's exact test for categorical variables and using Mann-Whitney test for continuous variables, as appropriate. RESULTS: Twenty-seven children (18 IA, 9 MIA) were included. More than half of the patients had low CD counts for age in IA and MIA groups: CD3 58.3% vs. 66.7% (p = 1.0), CD4 50.0% vs. 66.7% (p = 0.7), CD8 67.7% vs. 88.9% (p = 0.3), respectively. Six out of 12 IA children and 3 out of 8 MIA children had hypogammaglobulinemia (p = 0.7). Three out of 10 IA patients and 3 out of 5 MIA children had frequent bacteremia (≥5/year). Eight children (6 IA and 2 MIA) underwent intestinal and/or liver transplant; MIA children had a worse posttransplant outcome. CONCLUSIONS: IA children may have an immunodeficiency and associated infectious complications requiring hospitalization. We suggest performing immunologic evaluation not only in MIA but also in IA children presenting to an intestinal rehabilitation program to identify immunodeficiency. Early immunodeficiency screening may help initiate appropriate intervention and improve patient outcomes. LEVEL OF EVIDENCE: Level III.


Asunto(s)
Atresia Intestinal , Niño , Humanos , Inmunidad , Atresia Intestinal/epidemiología , Intestino Delgado , Intestinos , Estudios Retrospectivos
13.
Hepatology ; 72(6): 2014-2028, 2020 12.
Artículo en Inglés | MEDLINE | ID: mdl-32124453

RESUMEN

BACKGROUND AND AIMS: The Organ Procurement and Transplantation Network recently approved liver transplant (LT) prioritization for patients with hepatocellular carcinoma (HCC) beyond Milan Criteria (MC) who are down-staged (DS) with locoregional therapy (LRT). We evaluated post-LT outcomes, predictors of down-staging, and the impact of LRT in patients with beyond-MC HCC from the U.S. Multicenter HCC Transplant Consortium (20 centers, 2002-2013). APPROACH AND RESULTS: Clinicopathologic characteristics, overall survival (OS), recurrence-free survival (RFS), and HCC recurrence (HCC-R) were compared between patients within MC (n = 3,570) and beyond MC (n = 789) who were down-staged (DS, n = 465), treated with LRT and not down-staged (LRT-NoDS, n = 242), or untreated (NoLRT-NoDS, n = 82). Five-year post-LT OS and RFS was higher in MC (71.3% and 68.2%) compared with DS (64.3% and 59.5%) and was lowest in NoDS (n = 324; 60.2% and 53.8%; overall P < 0.001). DS patients had superior RFS (60% vs. 54%, P = 0.043) and lower 5-year HCC-R (18% vs. 32%, P < 0.001) compared with NoDS, with further stratification by maximum radiologic tumor diameter (5-year HCC-R of 15.5% in DS/<5 cm and 39.1% in NoDS/>5 cm, P < 0.001). Multivariate predictors of down-staging included alpha-fetoprotein response to LRT, pathologic tumor number and size, and wait time >12 months. LRT-NoDS had greater HCC-R compared with NoLRT-NoDS (34.1% vs. 26.1%, P < 0.001), even after controlling for clinicopathologic variables (hazard ratio [HR] = 2.33, P < 0.001) and inverse probability of treatment-weighted propensity matching (HR = 1.82, P < 0.001). CONCLUSIONS: In LT recipients with HCC presenting beyond MC, successful down-staging is predicted by wait time, alpha-fetoprotein response to LRT, and tumor burden and results in excellent post-LT outcomes, justifying expansion of LT criteria. In LRT-NoDS patients, higher HCC-R compared with NoLRT-NoDS cannot be explained by clinicopathologic differences, suggesting a potentially aggravating role of LRT in patients with poor tumor biology that warrants further investigation.


Asunto(s)
Técnicas de Ablación/métodos , Carcinoma Hepatocelular/terapia , Enfermedad Hepática en Estado Terminal/terapia , Neoplasias Hepáticas/terapia , Trasplante de Hígado/estadística & datos numéricos , Recurrencia Local de Neoplasia/epidemiología , Técnicas de Ablación/estadística & datos numéricos , Carcinoma Hepatocelular/diagnóstico , Carcinoma Hepatocelular/mortalidad , Carcinoma Hepatocelular/patología , Supervivencia sin Enfermedad , Enfermedad Hepática en Estado Terminal/diagnóstico , Enfermedad Hepática en Estado Terminal/mortalidad , Enfermedad Hepática en Estado Terminal/patología , Femenino , Estudios de Seguimiento , Humanos , Hígado/diagnóstico por imagen , Hígado/patología , Hígado/efectos de la radiación , Hígado/cirugía , Neoplasias Hepáticas/diagnóstico , Neoplasias Hepáticas/mortalidad , Neoplasias Hepáticas/patología , Trasplante de Hígado/normas , Masculino , Persona de Mediana Edad , Terapia Neoadyuvante/métodos , Recurrencia Local de Neoplasia/prevención & control , Estadificación de Neoplasias , Radioterapia Adyuvante/métodos , Radioterapia Adyuvante/estadística & datos numéricos , Estudios Retrospectivos , Índice de Severidad de la Enfermedad , Obtención de Tejidos y Órganos/normas , Carga Tumoral/efectos de la radiación , Estados Unidos/epidemiología , Listas de Espera/mortalidad
14.
Transpl Infect Dis ; 22(2): e13248, 2020 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-31960531

RESUMEN

Intestinal transplant recipients (ITR) are at high risk for infections due to the high level of immunosuppression required to prevent rejection. There are limited data regarding viral enteritis post-intestinal transplantation. We retrospectively reviewed ITR transplanted between January 2008 and December 2016. Descriptive statistics, including mean (standard deviation) and median (range), were performed. Sixty-one (43.9%) of the 139 transplanted patients had viral enteritis: 26% norovirus, 25% adenovirus, and 9% each rotavirus and sapovirus. The median age of pediatric patients was 1.6 years (0.4-16.9) and for adults 36.3 years (27.1-48.2). Fifty-seven (58%) of 99 pediatric ITR had viral enteritis compared to 4 (10%) of 40 adult ITR. Median time-to-clinical resolution of enteritis for all patients was 5 days (1-92). Standard of care therapies administered: anti-motility agents (10%), anti-emetics agents (14%), and intravenous fluids (42%). There was a higher incidence of viral enteritis in pediatric compared to adults ITR. The majority of viral enteritis episodes resolved within 1 week and were treated with supportive therapy.


Asunto(s)
Enteritis/virología , Intestinos/trasplante , Intestinos/virología , Receptores de Trasplantes/estadística & datos numéricos , Virosis/diagnóstico , Adolescente , Adulto , Niño , Preescolar , Enteritis/terapia , Femenino , Humanos , Terapia de Inmunosupresión/efectos adversos , Lactante , Masculino , Persona de Mediana Edad , Estudios Retrospectivos , Virosis/terapia , Adulto Joven
15.
Ann Surg ; 271(4): 616-624, 2020 04.
Artículo en Inglés | MEDLINE | ID: mdl-30870180

RESUMEN

OBJECTIVE: The aim of the study was to determine the rate, predictors, and impact of complete pathologic response (cPR) to pretransplant locoregional therapy (LRT) in a large, multicenter cohort of hepatocellular carcinoma (HCC) patients undergoing liver transplantation (LT). BACKGROUND: LRT is used to mitigate waitlist dropout for patients with HCC awaiting LT. Degree of tumor necrosis found on explant has been associated with recurrence and overall survival, but has not been evaluated in a large, multicenter study. METHODS: Comparisons were made among patients receiving pre-LT LRT with (n = 802) and without (n = 2637) cPR from the United States Multicenter HCC Transplant Consortium (UMHTC), and multivariable predictors of cPR were identified using logistic regression. RESULTS: Of 3439 patients, 802 (23%) had cPR on explant. Compared with patients without cPR, cPR patients were younger; had lower Model for End-stage Liver Disease (MELD) scores, AFP levels, and neutrophil-lymphocyte ratios (NLR); were more likely to have tumors within Milan criteria and fewer LRT treatments; and had significantly lower 1-, 3-, and 5-year incidence of post-LT recurrence (1.3%, 3.5%, and 5.2% vs 6.2%, 13.5%, and 16.4%; P < 0.001) and superior overall survival (92%, 84%, and 75% vs 90%, 78%, and 68%; P < 0.001). Multivariable predictors of cPR included age, sex, liver disease diagnosis, MELD, AFP, NLR, radiographic Milan status, and number of LRT treatments (C-statistic 0.67). CONCLUSIONS: For LT recipients with HCC receiving pretransplant LRT, achieving cPR portends significantly lower posttransplant recurrence and superior survival. Factors predicting cPR are identified, which may help prioritize patients and guide LRT strategies to optimize posttransplant cancer outcomes.


Asunto(s)
Carcinoma Hepatocelular/patología , Carcinoma Hepatocelular/terapia , Neoplasias Hepáticas/patología , Neoplasias Hepáticas/terapia , Trasplante de Hígado , Carcinoma Hepatocelular/cirugía , Progresión de la Enfermedad , Femenino , Humanos , Neoplasias Hepáticas/cirugía , Masculino , Persona de Mediana Edad , Terapia Neoadyuvante , Recurrencia Local de Neoplasia , Medición de Riesgo , Factores de Riesgo , Análisis de Supervivencia , Factores de Tiempo , Carga Tumoral , Estados Unidos
16.
Transpl Int ; 33(2): 142-148, 2020 02.
Artículo en Inglés | MEDLINE | ID: mdl-31523865

RESUMEN

Intestinal transplant recipients experience a high rate of renal complications secondary to dehydration due to increased ostomy output. It is hypothesized that inclusion of donor colon in the intestinal allograft may improve renal function in patients without functional native colon by improving fluid absorption. A single-center retrospective study of intestinal transplant recipients compared outcomes of patients receiving en bloc colon as part an intestinal allograft (ICTx), and those not receiving colon (CCNTx), as well as a control group of intestinal transplant recipients with functional native colon (ITx). Forty-seven patients (ICTx n = 17, CCNTx n = 15, ITx n = 15) were studied. One-year post-transplant renal function, as measured by change in glomerular filtration rate (GFR) and blood urea nitrogen (BUN) from baseline, was superior in ICTx (mean delta-GFR of -1.31 and delta-BUN of -1.46) compared to CCNTx (-6.54 and 17.54, P = 0.05 and P = 0.17, respectively) and similar to the ITx controls (0.55 and 2.09). Recipients of donor colon experienced a higher rate of ileostomy reversal when compared to CCNTx (62.5% vs. 20%, P = 0.0008), which was similar to the ITx controls (60%). These findings support the inclusion of en bloc donor colon in the intestinal allograft for recipients without functional native colon.


Asunto(s)
Colon/trasplante , Intestinos/trasplante , Riñón/fisiología , Aloinjertos , Tasa de Filtración Glomerular , Humanos , Ileostomía , Riñón/fisiopatología , Estudios Retrospectivos
17.
Clin Transplant ; 33(11): e13713, 2019 11.
Artículo en Inglés | MEDLINE | ID: mdl-31532002

RESUMEN

Open abdomen and fascial dehiscence after intestinal transplantation increase morbidity. This study aims to identify recipient and donor factors associated with failure to achieve sustained primary closure (failed-SPC) of the abdomen after intestinal transplant. We conducted a single-center retrospective study of 96 intestinal transplants between 2013 and 2018. Thirty-eight (40%) were adult patients, and 58 were pediatric patients. Median age at transplantation was 36.0 and 5.8 years, respectively. Failed-SPC occurred in 31 (32%) patients. Identified risk factors of failed-SPC included preexisting enterocutaneous fistula (OR: 6.8, CI: 2.4-19.6, P = .0003), isolated intestinal graft (OR: 3.4, CI: 1.24-9.47, P = .02), male sex in adults (OR: 3.93, CI: 1.43-10.8, P = .009), and age over four years (OR: 6.22, CI: 1.7-22.7, P = .004). There was no association with primary diagnosis and prior transplant with failed-SPC. Donor-to-recipient size ratios did not predict failed-SPC. There was an association between failed-SPC and extended median hospital stay (100 vs 57 days, P = .007) and increased time to enteral autonomy in pediatric patients. There is a relationship between failed-SPC and a higher rate of laparotomy (OR: 21.4, CI: 2.78-178.2, P = .0003) and fistula formation posttransplant (OR: 11.4, CI: 2.83-45.84, P = .0005) in pediatric patients. Given inferior outcomes with failed-SPC, high-risk recipients require careful evaluation.


Asunto(s)
Pared Abdominal/cirugía , Rechazo de Injerto/mortalidad , Hernia Abdominal/mortalidad , Intestinos/trasplante , Trasplante de Órganos/mortalidad , Complicaciones Posoperatorias/mortalidad , Pared Abdominal/fisiopatología , Adulto , Estudios de Casos y Controles , Niño , Preescolar , Femenino , Estudios de Seguimiento , Rechazo de Injerto/etiología , Rechazo de Injerto/patología , Supervivencia de Injerto , Hernia Abdominal/etiología , Hernia Abdominal/patología , Humanos , Masculino , Trasplante de Órganos/efectos adversos , Complicaciones Posoperatorias/etiología , Complicaciones Posoperatorias/patología , Pronóstico , Estudios Retrospectivos , Factores de Riesgo , Tasa de Supervivencia
19.
J Surg Educ ; 76(2): 427-432, 2019.
Artículo en Inglés | MEDLINE | ID: mdl-30266555

RESUMEN

BACKGROUND: No published study has explored gender differences in letters of recommendation for applicants entering surgical subspecialty fellowships. METHODS: We conducted a retrospective review of letters of recommendation to a transplant surgery fellowship written for residents finishing general surgery residency programs. A dictionary of communal and agentic terms was used to explore differences of the letters based on applicant's gender as well as the academic rank and gender of the author. RESULTS: Of the 311 reviewed letters, 228 were letters of recommendation written for male applicants. Male surgeons wrote 92.4% of the letters. Male applicant letters were significantly more likely to contain agentic terms such as superb, intelligent, and exceptional (p = 0.00086). Additionally, male applicant letters were significantly more likely to contain "future leader" (p = 0.047). Letters written by full professors, division chiefs, and program directors were significantly more likely to describe female applicants using communal terms like compassionate, calm, and delightful (p = 0.0301, p = 0.036, p = 0.036, respectively). In letters written by assistant professors, female letters of recommendation had significantly more references to family (p = 0.036). CONCLUSIONS: Gendered differences exist in letters of recommendation for surgical fellowship applicants. This research may provide insight into the inherent gender bias that is revealed in letters supporting candidates entering the field.


Asunto(s)
Correspondencia como Asunto , Becas/estadística & datos numéricos , Cirugía General/educación , Solicitud de Empleo , Selección de Personal/métodos , Selección de Personal/estadística & datos numéricos , Trasplante/educación , Femenino , Humanos , Masculino , Estudios Retrospectivos , Distribución por Sexo , Sexismo , Terminología como Asunto
20.
Am J Surg ; 216(1): 73-77, 2018 07.
Artículo en Inglés | MEDLINE | ID: mdl-29753389

RESUMEN

INTRODUCTION: Cholelithiasis is common in patients with short bowel syndrome (SBS). Prophylactic cholecystectomy (PC) of the non-diseased gallbladder has been recommended in SBS patients when laparotomy is being undertaken for other reasons. Our aim was to determine if PC is being utilized. METHODS: 500 adults with SBS were seen over a 25 year period. 215 undergoing cholecystectomy prior to SBS were excluded, leaving 285 patients for evaluation. RESULTS: 151 (53%) SBS patients underwent a subsequent laparotomy. 77 underwent cholecystectomy for cholelithiasis at the 1st opportunity. 27 patients underwent a PC at the 1st opportunity. 47 patients did not undergo PC at the 1st opportunity. 17 (36%) of these 47 patients subsequently developed cholelithiasis with 7 undergoing cholecystectomy. Age, gender, diagnosis and initial BMI and need for longterm parenteral nutrition were similar in patients who had PC or did not. PC patients were more likely to have intestinal remnant length <60 cm (59% vs 21%, p < .05). CONCLUSIONS: Overall 10% of SBS patients underwent PC. However, only 36% of eligible patients undergoing laparotomy had a PC.


Asunto(s)
Colecistectomía/estadística & datos numéricos , Colelitiasis/prevención & control , Síndrome del Intestino Corto/cirugía , Adulto , Anciano , Anciano de 80 o más Años , Colelitiasis/etiología , Femenino , Estudios de Seguimiento , Humanos , Laparotomía , Masculino , Persona de Mediana Edad , Estudios Retrospectivos , Síndrome del Intestino Corto/complicaciones , Factores de Tiempo , Resultado del Tratamiento , Adulto Joven
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