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1.
Obes Surg ; 34(4): 1224-1231, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-38379059

RESUMO

BACKGROUND: Non-alcoholic steatohepatitis (NASH) is one of the leading indications for liver transplantation (LT) in the United States. As with the current obesity epidemic, the incidence of NASH continues to rise. However, the impact of broad utilization of bariatric surgery (BS) for patients with NASH is unknown, particularly in regard to mitigating the need for LT. METHODS: Markov decision analysis was performed to simulate the lives of 20,000 patients with obesity and concomitant NASH who were deemed ineligible to be waitlisted for LT unless they achieved a body mass index (BMI) < 35 kg/m2. Life expectancy following medical weight management (MWM) and sleeve gastrectomy (SG) were estimated. Base case patients were defined as having NASH without fibrosis and a pre-intervention BMI of 45 kg/m2. Sensitivity analysis of initial BMI was performed. RESULTS: Simulated base case analysis patients who underwent SG gained 14.3 years of life compared to patients who underwent MWM. One year after weight loss intervention, 9% of simulated MWM patients required LT compared to only 5% of SG patients. Survival benefit for SG was observed above a BMI of 32.2 kg/m2. CONCLUSION: In this predictive model of 20,000 patients with obesity and concomitant NASH, surgical weight loss is associated with a reduction in the progression of NASH, thereby reducing the need for LT. A reduced BMI threshold of 32 kg/m2 for BS may offer survival benefit for patients with obesity and NASH.


Assuntos
Transplante de Fígado , Hepatopatia Gordurosa não Alcoólica , Obesidade Mórbida , Humanos , Hepatopatia Gordurosa não Alcoólica/complicações , Obesidade Mórbida/cirurgia , Obesidade/cirurgia , Redução de Peso , Gastrectomia , Resultado do Tratamento
2.
Pediatr Transplant ; 28(1): e14641, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-37946593

RESUMO

BACKGROUND: Liver transplantation (LT) is the only potentially curative option for children with unresectable hepatoblastoma (HBL). Although post-transplant outcomes have improved in the contemporary era, the impact of donor graft type on survival remains unclear. METHODS: Using the United Network for Organ Sharing database (02/2002-06/2021), demographics, clinical characteristics, and patient and graft survival were analyzed in children (<18 years) who underwent LT for HBL according to donor graft type. The Kaplan-Meier method, log-rank tests, and Cox regression modeling were used to evaluate the effect of whole, partial, and split deceased donor liver transplantation (DDLT) and living donor liver transplantation (LDLT) on patient and graft survival. RESULTS: A total of 590 pediatric HBL LT recipients (344 whole graft DDLT; 62 partial graft DDLT; 139 split graft DDLT; 45 LDLT) were included. During 2012-2021 the proportion of LDLTs for HBL decreased to about 5% compared with about 11% during 2002-2011. No significant differences were identified by donor graft type in either patient survival (log-rank test, p = .45) or graft survival (log-rank test, p = .69). The results remained similar during the 2002-2011 era, while during the 2012-2021 era, split graft DDLT was associated with decreased graft loss risk versus whole graft DDLT (hazard ratio: 0.48, 95% confidence interval: 0.23-0.99, p = .046) without any other significant between-group differences. CONCLUSIONS: Utilizing non-whole liver grafts can increase access to LT in children with unresectable HBL while ensuring favorable outcomes. LDLT is underutilized in children with HBL in the United States, and efforts to explore LDLT options should be undertaken.


Assuntos
Hepatoblastoma , Neoplasias Hepáticas , Transplante de Fígado , Criança , Humanos , Estados Unidos , Doadores Vivos , Transplante de Fígado/métodos , Hepatoblastoma/cirurgia , Estudos Retrospectivos , Sobrevivência de Enxerto , Neoplasias Hepáticas/cirurgia , Resultado do Tratamento
4.
Pediatr Transplant ; 28(1): e14645, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-38013236

RESUMO

BACKGROUND: Hepatic undifferentiated embryonal sarcoma (HUES) is the third most common primary hepatic malignancy in children. If unresectable, liver transplantation (LT) is the only curative option. Historically, HUES LT outcomes were not favorable; however, modern-era data are lacking. We aimed to describe LT outcomes in children with HUES and compared with LT outcomes in children transplanted for hepatoblastoma (HBL) and non-malignancy indications. METHODS: Children 18 years or younger with HUES who underwent LT from 1987 to 2021 were identified from the Scientific Registry of Transplant Recipients database. Graft and patient survival were studied in HUES and LT recipients with HBL and non-malignancy indications using Kaplan-Meier analysis. Cox regression was used to compare patient and graft survival among groups, controlling for confounders. RESULTS: Twenty-one children with HUES underwent LT during the study period with a median age at LT of 10 years (IQR: 8-12 years). One and five-year patient survival for HUES recipients was not significantly different from that of recipients with HBL (p = .3) or non-malignancy diagnoses (p = .6). There were no deaths due to HUES recurrence. In multivariable Cox regression, HUES did not increase risk of either patient or graft loss as compared to HBL (HR 2.36, p = .2) or non-malignancy indications (HR 0.74, p = .7). CONCLUSION: LT outcomes are more favorable in patients with HUES than historically described, and similar to LT outcomes of patients with HBL and non-malignancy indications. Transplant should be considered for HUES patients with unresectable localized tumors.


Assuntos
Hepatoblastoma , Neoplasias Hepáticas , Transplante de Fígado , Sarcoma , Criança , Humanos , Resultado do Tratamento , Estudos Retrospectivos , Neoplasias Hepáticas/cirurgia , Hepatoblastoma/cirurgia , Sarcoma/cirurgia , Sobrevivência de Enxerto
5.
Am J Surg ; 226(6): 829-834, 2023 12.
Artigo em Inglês | MEDLINE | ID: mdl-37604748

RESUMO

INTRODUCTION: Creatinine, bilirubin, and fibrinolysis resistance are associated with multi-organ dysfunction and likely risk factors for prolonged intensive care unit (pICU) stay following liver transplantation (LT). We hypothesize postoperative day-1 (POD-1) labs will predict pICU. METHODS: LT recipients had clinical laboratories and viscoelastic testing with tissue plasminogen activator thrombelastography (tPA TEG) to quantify fibrinolysis resistance (LY30) on POD-1. pICU was defined as one week or longer in the ICU. Logistic regression was used to identify the relationship between POD-1 labs and pICU. RESULTS: Of 304 patients, 50% went to the ICU, with 15% experiencing pICU. Elevated creatinine (OR 6.6, P â€‹< â€‹0.001) and low tPA TEG LY30 (OR 3.7, P â€‹= â€‹0.004) were independent predictors of pICU after controlling for other risk factors. A 9-fold increase in the rate of 90-day graft loss (19% vs 2% p â€‹< â€‹0.001) was observed patients who had these risk factors for pICU. CONCLUSION: Elevated creatine and fibrinolysis resistance are associated with pICU and poor outcomes following LT.


Assuntos
Transplante de Fígado , Ativador de Plasminogênio Tecidual , Humanos , Creatinina , Fibrinólise , Cuidados Críticos
6.
Pediatr Transplant ; 27(2): e14428, 2023 03.
Artigo em Inglês | MEDLINE | ID: mdl-36329627

RESUMO

BACKGROUND: Each year, children die awaiting LT as the demand for grafts exceeds the available supply. Candidates with public health insurance are significantly less likely to undergo both deceased donor LT and D-LLD LT. ND-LLD is another option to gain access to a graft. The aim of this study was to evaluate if recipient insurance type is associated with likelihood of D-LLD versus ND-LLD LT. METHODS: The SRTR/OPTN database was reviewed for pediatric LDLT performed between January 1, 2014 (Medicaid expansion era) and December 31, 2019 at centers that performed ≥1 ND-LLD LDLT during the study period. A multivariable logistic regression was performed to assess relationship between type of living donor (directed vs. non-directed) and recipient insurance. RESULTS: Of 299 pediatric LDLT, 46 (15%) were from ND-LLD performed at 18 transplant centers. Fifty-nine percent of ND-LLD recipients had public insurance in comparison to 40% of D-LLD recipients (p = .02). Public insurance was associated with greater odds of ND-LLD in comparison to D-LLD upon multivariable logistic regression (OR 2.37, 95% CI 1.23-4.58, p = .01). CONCLUSIONS: ND-LLD allows additional children to receive LTs and may help address some of the socioeconomic disparity in pediatric LDLT, but currently account for only a minority of LDLT and are only performed at a few institutions. Initiatives to improve access to both D-LLD and ND-LLD transplants are needed.


Assuntos
Transplante de Fígado , Humanos , Criança , Disparidades Socioeconômicas em Saúde , Fígado , Doadores Vivos , Medição de Risco , Resultado do Tratamento , Estudos Retrospectivos , Sobrevivência de Enxerto
7.
Am J Surg ; 224(6): 1398-1402, 2022 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-36400602

RESUMO

Debate continues as to whether choledochoduodenostomy (CDD) can be used instead of Roux-en-Y choledochojejunostomy (CDJ) when duct-to-duct (DTD) is not an option. We hypothesized that CDD and CDJ had similar rates of complications. All deceased-donor liver transplantations from September 2011 to March 2020 were categorized by biliary reconstruction. Primary outcomes were bleeding, bile leak, anastomotic stricture, and cholangitis. Of the 1,086 patients, 812 (74.8%) received a DTD; 225 (20.7%) received a CDD; and 49 (4.5%) received a CDJ. Cholangitis was significantly higher in CDJ compared to DTD and CDD (26.5% vs 6% vs 13.8%, p < 0.0001). When controlling for significant confounders, CDJ had 10.2 higher odds of cholangitis (95% CI 4.4-23.2) compared to DTD, and 3.3 higher odds compared to CDD (95% CI 1.4-7.8). When compared to DTD, CDJ and CDD had significantly lower odds of stricture. CDD continues to be a safe alternative for biliary reconstruction in deceased-donor liver transplantation.


Assuntos
Transplante de Fígado , Humanos , Ductos Biliares/cirurgia , Doadores Vivos , Anastomose em-Y de Roux , Coledocostomia
8.
Pediatr Transplant ; 26(8): e14377, 2022 12.
Artigo em Inglês | MEDLINE | ID: mdl-35959784

RESUMO

BACKGROUND: Acute kidney injury (AKI) is common in pediatric patients undergoing liver transplantation (LT), with an incidence 17%-55%. Fluid, metabolic, and acid-base aberrancies are often pronounced pre-operatively and further worsened by events during LT, making intra-operative continuous renal replacement therapy (CRRT) an option for critically ill LT recipients. METHODS: All pediatric LT performed at our institution who underwent intra-operative CRRT between January 2017 and August 2021 were included. Patient demographics and clinical data including graft outcomes, intra-operative findings, and timing and indications for CRRT were collected from the electronic medical record. RESULTS: CRRT was used in nine of the 76 (12%) pediatric LT performed at our center during the study period. Ages at LT ranged from 39 to 17.7 years. Recipients requiring CRRT were more likely to have acute liver failure, status 1A, and higher calculated MELD/PELD scores. CRRT was initiated pre-transplant in three recipients and continued post-transplant in six recipients. Median duration of CRRT was two (range 0-14) days. Indications included hyperammonemia (3/9), acidosis (3/9), fluid overload (6/9), and hyperkalemia (2/9). The CRRT group had a significantly longer post-transplant intensive care unit length of stay in comparison to those that did not require CRRT (median 6, range 3-40 days vs. median 3, range 0-121 days, p = .02], but there were no significant differences in reoperations, hospital length of stay, or recipient or graft survival. CONCLUSIONS: We demonstrate that CRRT can be safely performed in pediatric LT recipients, including young infants through adolescents.


Assuntos
Injúria Renal Aguda , Terapia de Substituição Renal Contínua , Transplante de Fígado , Humanos , Criança , Lactente , Adolescente , Terapia de Substituição Renal , Transplante de Fígado/efeitos adversos , Estudos Retrospectivos , Injúria Renal Aguda/etiologia , Injúria Renal Aguda/terapia , Estado Terminal
9.
Pediatr Transplant ; 26(8): e14352, 2022 12.
Artigo em Inglês | MEDLINE | ID: mdl-35844082

RESUMO

BACKGROUND: Immediate extubation (IE) following pediatric liver transplantation is being increasingly performed. The aim of this study was to characterize the rate of IE at our institution and identify recipient factors predictive of IE. METHODS: All pediatric liver transplants performed at our institution between January 1, 2015 and December 31, 2020 were reviewed. Retransplants and multi-organ transplants were excluded. IE was defined as extubation in the operating room following transplant. Backward stepwise logistic regression at a p-value threshold of .05 was performed to identify variables associated with IE. RESULTS: IE was achieved in 58 (72%) of the 81 pediatric liver transplants. The IE cohort had significantly shorter ICU length of stay and overall hospital length of stay, though IE was not an independent predictor of posttransplant length of stay. Age <2 years, preoperative mechanical ventilation, and total intraoperative epinephrine and dopamine infusion requirements were significant, independent risk factors against IE. This multivariable model was highly predictive of IE (area under the curve = 0.89). CONCLUSIONS: We describe the highest rate of IE postpediatric liver transplantation that has been reported to date and identified significant risk factors against successful IE.


Assuntos
Extubação , Transplante de Fígado , Humanos , Criança , Pré-Escolar , Extubação/efeitos adversos , Transplante de Fígado/efeitos adversos , Tempo de Internação , Estudos Retrospectivos , Respiração Artificial/efeitos adversos
10.
Transplantation ; 106(9): 1807-1813, 2022 09 01.
Artigo em Inglês | MEDLINE | ID: mdl-35579406

RESUMO

BACKGROUND: Pediatric living donor liver transplantation (LDLT) remains infrequently performed in the United States and localized to a few centers. This study aimed to compare pediatric waiting list and posttransplant outcomes by LDLT center volume. METHODS: The Scientific Registry of Transplant Recipients/Organ Procurement and Transplantation Network database was retrospectively reviewed for all pediatric (age <18 y) liver transplant candidates listed between January 1, 2009, and December 31, 2019. The average annual number of LDLT, deceased donor partial liver transplant (DDPLT), and overall (ie, LDLT + DDPLT + whole liver transplants) pediatric liver transplants performed by each transplant center during the study period was calculated. RESULTS: Of 88 transplant centers, only 44 (50%) performed at least 1 pediatric LDLT during the study period. LDLT, DDPLT, and overall transplant center volume were all positively correlated. LDLT center volume was protective against waiting list dropout after adjusting for confounding variables (adjusted hazard ratio, 0.92; 95% confidence interval, 0.86-0.97; P = 0.004), whereas DDPLT and overall center volume were not ( P > 0.05); however, DDPLT center volume was significantly protective against both recipient death and graft loss, whereas overall volume was only protective against graft loss and LDLT volume was not protective for either. CONCLUSIONS: High-volume pediatric LDLT center can improve waiting list survival, whereas DDPLT and overall volume are associated with posttransplant survival. Expertise in all types of pediatric liver transplant options is important to optimize outcomes.


Assuntos
Transplante de Fígado , Obtenção de Tecidos e Órgãos , Criança , Sobrevivência de Enxerto , Humanos , Transplante de Fígado/efeitos adversos , Doadores Vivos , Estudos Retrospectivos , Estados Unidos/epidemiologia , Listas de Espera
11.
J Pediatr Surg ; 57(10): 407-413, 2022 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-35065808

RESUMO

INTRODUCTION: Kasai hepatoportoenterostomy is the standard of care for children with biliary atresia, but a majority of patients progress to end-stage liver disease and require a salvage liver transplant. Given the high failure rates of the hepatoportoenterostomy operation, some have advocated for primary liver transplantation as a superior treatment approach. The aim of this study was to compare outcomes of pediatric candidates with biliary atresia listed for primary vs. salvage liver transplantation. METHODS: The SRTR/OPTN database was retrospectively reviewed for all children with biliary atresia listed for liver transplant between March 2002 and February 2021. Candidates were categorized as primary liver transplant if they had not undergone previous abdominal surgery prior to listing and salvage liver transplant if they had. Salvage transplants were further categorized as early failure if listed within the first year of life or late failure if listed at an older age. RESULTS: 3438 children with biliary atresia were listed for transplant during the study period, with 15% of them listed for a primary transplant, 17% for salvage transplant after early failure, and 67% after late failure. Recipients of salvage liver transplant with late failure had lower bilirubin levels and were less critically ill as demonstrated by MELD/PELD scores and hospitalization status. Correspondingly, these recipients had higher waiting list and graft survival, though this did not remain statistically significant after adjustment in multivariable models. There were no differences in waiting list, recipient, or graft survival with primary vs. salvage liver transplant after early failure. CONCLUSION: Kasai hepatoportoenterostomy should remain the standard of care in biliary atresia as it may delay need for transplant beyond the first year of life in a subset of recipients and does not jeopardize subsequent transplant outcomes, even with early failure. LEVELS OF EVIDENCE: Retrospective cohort study (Level III).


Assuntos
Atresia Biliar , Transplante de Fígado , Atresia Biliar/cirurgia , Criança , Sobrevivência de Enxerto , Humanos , Lactente , Portoenterostomia Hepática , Estudos Retrospectivos
12.
Pediatr Transplant ; 26(2): e14185, 2022 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-34741368

RESUMO

BACKGROUND: In children with cirrhosis, the prevalence of HPS ranges from 3% to 20%, resulting in impaired gas exchange due to alterations in pulmonary microvasculature. LT is the gold-standard cure for cirrhosis complicated by HPS and should ideally be performed prior to the development of severe HPS due to increased risk for post-transplant hypoxia, right heart failure, and outflow obstruction. METHODS: We present a case of a 13-year-old man, who underwent pediatric LT for severe HPS complicated by postoperative respiratory collapse, requiring a 92-day course of veno-venous ECMO. RESULTS: Post-transplant, despite BiPAP, inhaled nitric oxide and isoproterenol infusion, he remained hypoxic postoperatively and acutely decompensated on postoperative day 25, requiring veno-venous ECMO. After 84 days on ECMO, a persistent large splenorenal shunt was identified that was embolized by interventional radiology, and 8 days after shunt embolization and ASD closure, he was successfully weaned off ECMO. CONCLUSIONS: This case describes the longest known duration of ECMO in a pediatric LT recipient and a unique improvement in hypoxemia following a portosystemic shunt closure. ECMO presents a heroic rescue measure for pediatric LT recipients with HPS that develops acute respiratory failure postoperatively refractory to alternative measures.


Assuntos
Oxigenação por Membrana Extracorpórea , Síndrome Hepatopulmonar/terapia , Transplante de Fígado , Complicações Pós-Operatórias/terapia , Adolescente , Síndrome Hepatopulmonar/cirurgia , Humanos , Masculino
13.
Pediatr Transplant ; 26(2): e14182, 2022 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-34738706

RESUMO

BACKGROUND: Delayed time to listing (TTL) for pediatric transplant patients is associated with increased risks of mortality and morbidity. The full range of health disparities, sociodemographic factors, and other barriers associated with delays in listing in the pediatric transplant candidate evaluation process has not been fully examined. METHODS: Retrospective chart reviews were conducted for 183 kidney, liver, and heart transplant candidates ages 0-18 who were referred for evaluation during 2012-2015. Demographic information and potential barriers (e g., social/medical factors, financial concerns) were gathered from pre-transplant evaluations and included in a comprehensive model to evaluate mechanisms that explain differences in TTL. Descriptive statistics, logistic regression models, Cox proportional hazards models, and path analysis were used for analyses. RESULTS: Candidates included 26.8% heart, 33.3% liver, and 39.9% kidney patients. The most common barrier to listing was financial (71.6%), followed by caregiver psychological or substance use (57.9%), and medical problems (49.7%). Higher age, kidney, and liver organ type (relative to the heart), and presence of social, medical, administrative/motivation, and financial barriers were all directly associated with longer TTL. Public insurance was indirectly associated with TTL through social, administrative/motivation, and financial barriers. Organ type was indirectly associated with TTL through financial barriers. CONCLUSIONS: Results suggest social problems, administrative issues, and financial issues act as mechanisms through which insurance type and liver transplant candidates face increased risk of delays in transplant listing time. There are numerous clinical implications and interventions that are warranted to reduce TTL among pediatric transplant candidates with co-occurring barriers.


Assuntos
Disparidades em Assistência à Saúde/estatística & dados numéricos , Transplante de Órgãos , Listas de Espera , Adolescente , Criança , Pré-Escolar , Feminino , Humanos , Lactente , Recém-Nascido , Masculino , Estudos Retrospectivos , Fatores de Risco , Fatores Socioeconômicos
14.
Liver Transpl ; 27(10): 1392-1400, 2021 10.
Artigo em Inglês | MEDLINE | ID: mdl-34048131

RESUMO

A gap exists between the demand for pediatric liver transplantation and the supply of appropriate size-matched donors. We describe our center's experience with pediatric liver transplantation using anonymous nondirected living liver donors (ND-LLD). First-time pediatric liver transplant candidates listed at our center between January 2012 and June 2020 were retrospectively reviewed and categorized by donor graft type, and recipients of ND-LLD grafts were described. A total of 13 ND-LLD pediatric liver transplantations were performed, including 8 left lateral segments, 4 left lobes, and 1 right lobe. Of the ND-LLD recipients, 5 had no directed living donor evaluated, whereas the remaining 8 (62%) had all potential directed donors ruled out during the evaluation process. Recipient and graft survival were 100% during a median follow-up time of 445 (range, 70-986) days. Of ND-LLDs, 69% were previous living kidney donors, and 1 ND-LLD went on to donate a kidney after liver donation. Of the ND-LLDs, 46% were approved prior to the recipient being listed. Over time, the proportion of living donor transplants performed, specifically from ND-LLDs, increased, and the number of children on the waiting list decreased. The introduction of ND-LLDs to a pediatric liver transplant program can expand the benefit of living donor liver transplantation to children without a suitable directed living donor while achieving excellent outcomes for both the recipients and donors.


Assuntos
Transplante de Fígado , Criança , Sobrevivência de Enxerto , Humanos , Fígado , Transplante de Fígado/efeitos adversos , Doadores Vivos , Estudos Retrospectivos
15.
Transplantation ; 105(10): 2239-2244, 2021 10 01.
Artigo em Inglês | MEDLINE | ID: mdl-33065726

RESUMO

BACKGROUND: This study aimed to compare trends in use of drug overdose (DO) donors in adult versus pediatric liver transplants and the utilization of split liver transplantation in this donor population. METHODS: The United Network for Organ Sharing database was reviewed for deceased donor liver transplants from March 2002 to December 2017. Recipients were categorized by donor mechanism of death. Donor splitting criteria was defined as age <40 y, single vasopressor or less, transaminases no >3 times the normal limit, and body mass index ≤ 28 kg/m2. RESULTS: Adult liver transplants from DO donors increased from 2% in 2002 to 15% in 2017, while pediatric liver transplants from DO donors only increased from <1% to 3% in the same time. While 28% of DO donors met splitting criteria, only 3% of those meeting splitting criteria were used as a split graft. Both pediatric and adult recipients of DO donor livers achieved excellent patient and graft survival. CONCLUSIONS: DO donors are underutilized in pediatric liver transplantation. Increased splitting of DO donor livers could significantly decrease, if not eliminate, the pediatric liver waiting list.


Assuntos
Seleção do Doador/tendências , Overdose de Drogas/mortalidade , Doença Hepática Terminal/cirurgia , Transplante de Fígado/tendências , Epidemia de Opioides/mortalidade , Transtornos Relacionados ao Uso de Opioides/mortalidade , Doadores de Tecidos/provisão & distribuição , Adulto , Fatores Etários , Idoso , Causas de Morte , Criança , Pré-Escolar , Bases de Dados Factuais , Doença Hepática Terminal/diagnóstico , Doença Hepática Terminal/mortalidade , Feminino , Humanos , Lactente , Recém-Nascido , Transplante de Fígado/efeitos adversos , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Medição de Risco , Fatores de Risco , Fatores de Tempo , Resultado do Tratamento , Listas de Espera/mortalidade , Adulto Jovem
16.
Am J Surg ; 220(6): 1511-1517, 2020 12.
Artigo em Inglês | MEDLINE | ID: mdl-32878689

RESUMO

BACKGROUND: End stage renal disease (ESRD) is associated with elevated fibrinogen levels and fibrinolysis inhibition. However, there is a paucity of data on how renal transplantation impacts coagulation. we hypothesize that renal transplantation recipients with good functioning grafts will have improved fibrinolytic activity following surgery. METHODS: Kidney recipients were analyzed pre-operatively and on post-operative day 1(POD1) using three different TEG assays with and without two concentration of tissue-plasminogen activator (t-PA). TEG indices and percent reduction in creatinine from pre-op to POD1 were measured, with >50% defining "good" graft function. Follow up was done at 6, 12, and 24 months. RESULTS: Percent lysis(LY30) on POD1 the t-PA TEG was significantly correlated to change creatinine from pre-op to POD-1(p = 0.006). A LY30 ≥ 23% was associated with good early graft function, and lower creatinine at 24-months(p = 0.028) compared to recipients with low POD1 LY30. CONCLUSIONS: Post-operative tPA-TEG LY30 is associated with favorable early and late outcomes in kidney transplant.


Assuntos
Coagulação Sanguínea , Falência Renal Crônica/cirurgia , Transplante de Rim , Tromboelastografia , Ativador de Plasminogênio Tecidual/sangue , Adulto , Feminino , Humanos , Testes de Função Renal , Masculino , Pessoa de Meia-Idade , Período Pós-Operatório , Valor Preditivo dos Testes , Estudos Prospectivos , Resultado do Tratamento
17.
Am J Surg ; 220(6): 1518-1525, 2020 12.
Artigo em Inglês | MEDLINE | ID: mdl-32907708

RESUMO

INTRODUCTION: During the anhepatic phase of liver transplantation (LT), fibrinolytic activity increases, since the liver clears tissue plasminogen activator (tPA). We hypothesize that patients who fail to reduce fibrinolytic activity following graft reperfusion will have an increased rate of early allograft dysfunction (EAD). METHODS: Assessment of fibrinolysis in liver transplant recipients was quantified with thrombelastography (TEG) LY30. Changes in LY30 were assessed after graft reperfusion. The 30-min post-reperfusion LY30 was subtracted from the anhepatic LY30 quantifying fibrinolytic changes (delta-LY30). RESULTS: Seventy-three primary LT patients were included in the analysis. Receiver operating characteristic curve (ROC) analysis identified an inflection point of delta-LY30-5.3% as a risk factor for EAD. EAD occurred in 44% of these patients compared to 5% in high delta-LY30 (p = 0.002). CONCLUSION: LT recipients that develop hyperfibrinolysis who fail to reduce fibrinolytic activity 30 min after graft reperfusion had an EAD rate 8-fold higher than patients who had a large reduction in LY30 following reperfusion.


Assuntos
Transplante de Fígado , Complicações Pós-Operatórias/sangue , Complicações Pós-Operatórias/diagnóstico , Reperfusão , Adulto , Idoso , Sistemas Computacionais , Feminino , Fibrinólise , Humanos , Período Intraoperatório , Testes de Função Hepática , Masculino , Pessoa de Meia-Idade , Complicações Pós-Operatórias/fisiopatologia , Estudos Prospectivos , Reperfusão/métodos , Fatores de Tempo
18.
Am J Surg ; 220(6): 1379-1386, 2020 12.
Artigo em Inglês | MEDLINE | ID: mdl-32907709

RESUMO

BACKGROUND: An NIH clinical coagulopathy score has been devised for trauma patients, but no such clinical score exists in transplantation surgery. We hypothesize that that this coagulopathy score can effectively identify laboratory defined coagulopathy during liver transplantation and correlates to blood product utilization. METHODS: TEGs were performed and coagulopathy scores (1, normal bleeding - 5, diffuse coagulopathic bleeding) were assigned by the surgeons at 5 intra-operative time points. Blood products used during the case were recorded between time points. Statistical analyses were performed to identify correlations between coagulopathy scores, TEG-detected abnormalities, and blood product utilization. RESULT: Transfusions rarely correlated with the appropriate TEG measurements of coagulation dysfunction. Coagulopathy score had significant correlation to various transfusions and TEG-detected coagulopathies at multiple points during the case. High aggregate coagulopathy scores identified patients receiving more transfusions, re-operations, and longer hospital stays CONCLUSION: The combination of viscoelastic testing and a standardized clinical coagulopathy score has the potential to optimize transfusions if used in tandem as well as standardize communication between surgery and anesthesia teams about clinically evident coagulopathy.


Assuntos
Transtornos da Coagulação Sanguínea/classificação , Transfusão de Componentes Sanguíneos/estatística & dados numéricos , Técnicas Hemostáticas , Transplante de Fígado , Ressuscitação/métodos , Adulto , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Valor Preditivo dos Testes , Estudos Prospectivos , Tromboelastografia , Viscosidade
20.
J Stroke Cerebrovasc Dis ; 29(9): 105068, 2020 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-32807471

RESUMO

BACKGROUND AND PURPOSE: The coronavirus disease-2019 (COVID-19) pandemic caused unprecedented demand and burden on emergency health care services in New York City. We aim to describe our experience providing acute stroke care at a comprehensive stroke center (CSC) and the impact of the pandemic on the quality of care for patients presenting with acute ischemic stroke (AIS). METHODS: We retrospectively analyzed data from a quality improvement registry of consecutive AIS patients at New York University Langone Health's CSC between 06/01/2019-05/15/2020. During the early stages of the pandemic, the acute stroke process was modified to incorporate COVID-19 screening, testing, and other precautionary measures. We compared stroke quality metrics including treatment times and discharge outcomes of AIS patients during the pandemic (03/012020-05/152020) compared with a historical pre-pandemic group (6/1/2019-2/29/2020). RESULTS: A total of 754 patients (pandemic-120; pre-pandemic-634) were admitted with a principal diagnosis of AIS; 198 (26.3%) received alteplase and/or mechanical thrombectomy. Despite longer median door to head CT times (16 vs 12 minutes; p = 0.05) and a trend towards longer door to groin puncture times (79.5 vs. 71 min, p = 0.06), the time to alteplase administration (36 vs 35 min; p = 0.83), door to reperfusion times (103 vs 97 min, p = 0.18) and defect-free care (95.2% vs 94.7%; p = 0.84) were similar in the pandemic and pre-pandemic groups. Successful recanalization rates (TICI≥2b) were also similar (82.6% vs. 86.7%, p = 0.48). After adjusting for stroke severity, age and a prior history of transient ischemic attack/stroke, pandemic patients had increased discharge mortality (adjusted OR 2.90 95% CI 1.77 - 7.17, p = 0.021) CONCLUSION: Despite unprecedented demands on emergency healthcare services, early multidisciplinary efforts to adapt the acute stroke treatment process resulted in keeping the stroke quality time metrics close to pre-pandemic levels. Future studies will be needed with a larger cohort comparing discharge and long-term outcomes between pre-pandemic and pandemic AIS patients.


Assuntos
Betacoronavirus/patogenicidade , Assistência Integral à Saúde/organização & administração , Infecções por Coronavirus/terapia , Prestação Integrada de Cuidados de Saúde/organização & administração , Pneumonia Viral/terapia , Melhoria de Qualidade/organização & administração , Indicadores de Qualidade em Assistência à Saúde/organização & administração , Acidente Vascular Cerebral/terapia , Trombectomia , Terapia Trombolítica , Idoso , Idoso de 80 Anos ou mais , COVID-19 , Infecções por Coronavirus/diagnóstico , Infecções por Coronavirus/epidemiologia , Infecções por Coronavirus/virologia , Procedimentos Clínicos/organização & administração , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Cidade de Nova Iorque/epidemiologia , Pandemias , Equipe de Assistência ao Paciente/organização & administração , Pneumonia Viral/diagnóstico , Pneumonia Viral/epidemiologia , Pneumonia Viral/virologia , Sistema de Registros , Estudos Retrospectivos , SARS-CoV-2 , Acidente Vascular Cerebral/diagnóstico , Acidente Vascular Cerebral/epidemiologia , Fatores de Tempo , Tempo para o Tratamento/organização & administração , Resultado do Tratamento , Fluxo de Trabalho
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