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1.
JAMA Surg ; 2024 May 29.
Artigo em Inglês | MEDLINE | ID: mdl-38809546

RESUMO

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 ; 156(7): 639-645, 2021 07 01.
Artigo em Inglês | MEDLINE | ID: mdl-34037705

RESUMO

Importance: The Organ Procurement and Transplantation Network (OPTN) approved changes to the US kidney allocation system in 2019. The potential effects of this policy change using transplant rates normalized to end-stage kidney disease (ESKD) incidence have not been investigated. Objective: To estimate how the OPTN kidney allocation policy will affect areas of the US currently demonstrating low rates of kidney transplant, when accounting for the regional burden of ESKD. Design, Setting, and Participants: This cross-sectional population-based economic evaluation analyzed access of patients with ESKD to kidney transplant in the US. Participants included patients with incident ESKD, those on the kidney transplant wait list, and those who received a kidney transplant. Data were collected from January 1 to December 31, 2017, and were analyzed in 2019. Main Outcomes and Measures: The probability of a patient with ESKD being placed on the transplant wait list or receiving a deceased donor kidney transplant. States and donor service areas (DSAs) were compared for gains and losses in rates of transplanted kidneys under the new allocation system. Transplant rates were normalized for ESKD burden. Results: A total of 122 659 patients had incident ESKD in the US in 2017 (58.2% men; mean [SD] age, 62.8 [15.1] years). The probability of a patient with ESKD receiving a deceased donor kidney transplant varied 3-fold across the US (from 6.36% in West Virginia to 18.68% in the District of Columbia). Modeling of the OPTN demonstrates that DSAs from New York (124%), Georgia (65%), and Illinois (56%) are estimated to experience the largest increases in deceased donor kidney allocation. Other than Georgia, these states have kidney transplant rates per incident ESKD cases above the mean (of 50 states plus the District of Columbia, New York is 16th and Illinois is 24th). In contrast, DSAs from Nevada (-74%), Ohio (-67%), and North Carolina (-61%)-each of which has a transplant rate per incident ESKD cases significantly below the mean-are estimated to experience the largest decreases in deceased donor allocation (of 50 states plus the District of Columbia, North Carolina is 34th, Ohio is 38th, and Nevada is 47th). Conclusions and Relevance: The new OPTN-approved kidney allocation policy may result in worsening geographic disparities in access to transplants when measured against the burden of ESKD within a particular region of the US.


Assuntos
Política de Saúde , Falência Renal Crônica/epidemiologia , Falência Renal Crônica/cirurgia , Transplante de Rim/estatística & dados numéricos , Seleção de Pacientes , Obtenção de Tecidos e Órgãos/organização & administração , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Efeitos Psicossociais da Doença , Estudos Transversais , Feminino , Humanos , Incidência , Falência Renal Crônica/diagnóstico , Masculino , Pessoa de Meia-Idade , Estados Unidos , Listas de Espera , Adulto Jovem
3.
Clin Pharmacol Drug Dev ; 8(8): 995-1008, 2019 11.
Artigo em Inglês | MEDLINE | ID: mdl-30667591

RESUMO

The pharmacokinetics of once-daily extended-release tacrolimus tablets (LCPT) in de novo liver transplantation have not been previously reported. In this phase II, randomized, open-label study, de novo liver transplant recipients were randomized to LCPT 0.07-0.13 mg/kg/day (taken once daily; n = 29) or twice-daily immediate-release tacrolimus capsules (IR-Tac) at 0.10-0.15 mg/kg/day (divided twice daily; n = 29). Subsequent doses of both drugs were adjusted to maintain tacrolimus trough concentrations of 5 to 20 ng/mL through day 90, and 5-15 ng/mL thereafter. Twenty-four-hour pharmacokinetic profiles were obtained on days 1, 7, and 14, with trough concentration and efficacy/safety monitoring through year 1. Similar proportions of patients in both groups achieved therapeutic trough concentrations on days 7 and 14 (day 7: LCPT = 78%, IR-Tac = 75%; day 14: LCPT = 86%, IR-Tac = 91%) as well as similar systemic and peak exposure. There was a robust correlation between drug concentration at time 0 and area under the concentration-time curve for both LCPT and IR-Tac (respectively, day 7: r = 0.86 and 0.79; day 14: r = 0.93 and 0.86; P < .0001 for all). Dose adjustments during days 1 to 14 were frequent. Thirty-five patients completed the extended-use period. No significant differences in adverse events were seen between groups. Incidence of biopsy-proven acute rejection (LCPT = 6 and IR-Tac = 4) was similar on day 360. Between formulations, overall exposure was similar at 1 week after transplant with the characteristic delayed-release pharmacokinetic profile of LCPT demonstrated in this novel population. These data support further investigation of the safety and efficacy of LCPT in de novo liver transplantation.


Assuntos
Rejeição de Enxerto/prevenção & controle , Imunossupressores/administração & dosagem , Imunossupressores/sangue , Transplante de Fígado , Tacrolimo/administração & dosagem , Tacrolimo/sangue , Área Sob a Curva , Disponibilidade Biológica , Cápsulas , Preparações de Ação Retardada , Esquema de Medicação , Efeitos Colaterais e Reações Adversas Relacionados a Medicamentos/epidemiologia , Efeitos Colaterais e Reações Adversas Relacionados a Medicamentos/etiologia , Feminino , Rejeição de Enxerto/imunologia , Humanos , Imunossupressores/efeitos adversos , Masculino , Taxa de Depuração Metabólica , Pessoa de Meia-Idade , Comprimidos , Tacrolimo/efeitos adversos
4.
J Vasc Interv Radiol ; 28(2): 231-237.e2, 2017 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-27939085

RESUMO

PURPOSE: To measure transarterial chemoembolization utilization and survival benefit among patients with hepatocellular carcinoma (HCC) in the Surveillance, Epidemiology, and End Results (SEER) patient population. MATERIALS AND METHODS: A retrospective study identified 37,832 patients with HCC diagnosed between 1991 and 2011. Survival was estimated by Kaplan-Meier method and compared by log-rank test. Propensity-score matching was used to address an imbalance of covariates. RESULTS: More than 75% of patients with HCC did not receive any HCC-directed treatment. Transarterial chemoembolization was the most common initial therapy (15.9%). Factors associated with the use of chemoembolization included younger age, more HCC risk factors, more comorbidities, higher socioeconomic status, intrahepatic tumor, unifocal tumor, vascular invasion, and smaller tumor size (all P < .001). Median survival was improved in patients treated with chemoembolization compared with those not treated with chemoembolization (20.1 vs 4.3 mo; P < .0001). Similar findings were demonstrated in propensity-scoring analysis (14.5 vs 4.2 mo; P < .0001) and immortal time bias sensitivity analysis (9.5 vs 3.6 mo; P < .0001). There was a significantly improved survival hazard ratio (HR) in patients treated with chemoembolization (HR, 0.42; 95% confidence interval, 0.39-0.45). CONCLUSIONS: Patients with HCC treated with transarterial chemoembolization experienced a significant survival advantage compared with those not treated with transarterial chemoembolization. More than 75% of SEER/Medicare patients diagnosed with HCC received no identifiable oncologic treatment. There is a significant public health need to increase awareness of efficacious HCC treatments such as transarterial chemoembolization.


Assuntos
Carcinoma Hepatocelular/terapia , Quimioembolização Terapêutica/tendências , Neoplasias Hepáticas/terapia , Padrões de Prática Médica/tendências , Idoso , Idoso de 80 Anos ou mais , Carcinoma Hepatocelular/mortalidade , Carcinoma Hepatocelular/patologia , Quimioembolização Terapêutica/efeitos adversos , Quimioembolização Terapêutica/mortalidade , Quimioembolização Terapêutica/estatística & dados numéricos , Distribuição de Qui-Quadrado , Feminino , Humanos , Estimativa de Kaplan-Meier , Neoplasias Hepáticas/mortalidade , Neoplasias Hepáticas/patologia , Modelos Logísticos , Masculino , Medicare , Seleção de Pacientes , Pontuação de Propensão , Modelos de Riscos Proporcionais , Estudos Retrospectivos , Fatores de Risco , Programa de SEER , Fatores de Tempo , Resultado do Tratamento , Estados Unidos/epidemiologia
5.
Hepatol Commun ; 1(4): 338-346, 2017 06.
Artigo em Inglês | MEDLINE | ID: mdl-29404463

RESUMO

Transarterial chemoembolization (TACE) is the most common oncologic therapy used according to the American Association for the Study of Liver Diseases (AASLD) guidelines established in 2005, revised in 2011. The purpose of this study was to determine how AASLD criteria for the management of hepatocellular carcinoma (HCC) have impacted TACE practice in the community. Clinical, demographic, and cause of death information were collected for patients diagnosed with HCC in the 2012 linkage of the Surveillance, Epidemiology, and End Results Medicare database. Propensity score survival analysis was used to compare survival outcomes in patients whose HCC tumor characteristics were less than, met, or were beyond AASLD criteria. The proportion of patients with HCC receiving TACE who met the AASLD-recommended criteria increased after the 2005 guidelines were published. Up to 17% of patients treated with TACE had tumor characteristics less than the AASLD criteria and were not offered potentially curative therapies. Propensity score matching demonstrated the largest survival advantage in patients with HCC whose tumor characteristics met the AASLD criteria (hazard ratio, 0.42; 95% confidence interval, 0.38-0.47). A significant survival advantage was also observed in patients with HCC whose tumor characteristics exceeded the AASLD criteria. Conclusion: The AASLD criteria successfully identify a population of patients with HCC that maximally benefit from TACE therapy. However, patients with HCC with tumor characteristics beyond the AASLD criteria also appear to receive a significant survival advantage with TACE. Further studies are necessary to improve referral patterns and appropriate use of chemoembolization in the management of unresectable HCC. (Hepatology Communications 2017;1:338-346).

6.
HPB (Oxford) ; 18(10): 843-850, 2016 10.
Artigo em Inglês | MEDLINE | ID: mdl-27542590

RESUMO

BACKGROUND: The ideal adjuvant therapy for resected cholangiocarcinoma remains controversial. National guidelines stratify recommendations based on margin status, though few studies are currently available for reference. METHODS: Data was abstracted on all patients with definitive resections of cholangiocarcinoma at our institution between 2000 and 2013. Adjuvant chemoradiation consisted of 45 Gy delivered to elective nodal regions and 50.4-54 Gy to the surgical bed with concurrent fluoropyrimidine-based chemotherapy. Subgroup analyses were performed delineated by margin status. RESULTS: Curative resection was performed on 95 patients followed by adjuvant chemoradiation in 23/95 (24%) and observation in 72/95 (76%) with a median follow-up of 21.7 months. For those receiving adjuvant chemoradiation the median overall survival was 30.2 months compared with 26.3 months for those observed (p = 0.0695). In a multivariable model controlling for other prognostic factors, adjuvant chemoradiation was associated with improved disease-free survival (HR 0.50, p = 0.03) and overall survival (HR 0.37, p = 0.004). In multivariable models stratified by margin status, adjuvant chemoradiation was associated with improved overall survival following both margin-negative (HR 0.34, p = 0.035) and margin-positive (HR 0.15, p = 0.003) resections. CONCLUSIONS: Overall survival was improved with adjuvant chemoradiation following either margin-negative or margin-positive resections, which is not currently reflected in national guidelines.


Assuntos
Neoplasias dos Ductos Biliares/terapia , Quimiorradioterapia Adjuvante , Colangiocarcinoma/terapia , Colecistectomia , Hepatectomia , Pancreaticoduodenectomia , Adulto , Idoso , Idoso de 80 Anos ou mais , Alabama , Neoplasias dos Ductos Biliares/mortalidade , Neoplasias dos Ductos Biliares/patologia , Quimiorradioterapia Adjuvante/efeitos adversos , Quimiorradioterapia Adjuvante/mortalidade , Distribuição de Qui-Quadrado , Colangiocarcinoma/mortalidade , Colangiocarcinoma/patologia , Colecistectomia/efeitos adversos , Colecistectomia/mortalidade , Intervalo Livre de Doença , Feminino , Hepatectomia/efeitos adversos , Hepatectomia/mortalidade , Humanos , Estimativa de Kaplan-Meier , Masculino , Margens de Excisão , Pessoa de Meia-Idade , Análise Multivariada , Recidiva Local de Neoplasia , Neoplasia Residual , Pancreaticoduodenectomia/efeitos adversos , Pancreaticoduodenectomia/mortalidade , Modelos de Riscos Proporcionais , Doses de Radiação , Estudos Retrospectivos , Fatores de Risco , Fatores de Tempo , Resultado do Tratamento
7.
J Oncol ; 2016: 4692139, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-26949394

RESUMO

Purpose. The association between transarterial chemoembolization- (TACE-) induced HCC tumor necrosis measured by the modified Response Evaluation Criteria In Solid Tumors (mRECIST) and patient survival is poorly defined. We hypothesize that survival will be superior in HCC patients with increased TACE-induced tumor necrosis. Materials and Methods. TACE interventions were retrospectively reviewed. Tumor response was quantified via dichotomized (responders and nonresponders) and the four defined mRECIST categories. Results. Median survival following TACE was significantly greater in responders compared to nonresponders (20.8 months versus 14.9 months, p = 0.011). Survival outcomes also significantly varied among the four mRECIST categories (p = 0.0003): complete, 21.4 months; partial, 20.8; stable, 16.8; and progressive, 7.73. Only progressive disease demonstrated significantly worse survival when compared to complete response. Multivariable analysis showed that progressive disease, increasing total tumor diameter, and non-Child-Pugh class A were independent predictors of post-TACE mortality. Conclusions. Both dichotomized (responders and nonresponders) and the four defined mRECIST responses to TACE in patients with HCC were predictive of survival. The main driver of the survival analysis was poor survival in the progressive disease group. Surprisingly, there was small nonsignificant survival benefit between complete, partial, and stable disease groups. These findings may inform HCC treatment decisions following first TACE.

9.
Am Surg ; 82(11): 1133-1139, 2016 Nov 01.
Artigo em Inglês | MEDLINE | ID: mdl-28206944

RESUMO

Intrahepatic cholangiocarcinoma (ICC) is classified according to the following subtypes: massforming (MF), periductal infiltrating (PI), and intraductal growth (IG). The aim of this study is to measure the association between ICC subtypes and patient survival after surgical resection. Data were abstracted on all patients treated with definitive resections of ICC at a single institution between 2000 and 2011 with at least three years follow-up. Survival estimates were quantified using Kaplan-Meier curves and compared using the log-rank test. There were 37 patients with ICC treated with definitive partial hepatectomies with a median survival of 33.5 months. Tumor stage (P < 0.0001), satellitosis (P < 0.001), lymphovascular space invasion (P = 0.003), and macroscopic subtype (P = 0.003) were predictive of postoperative survival. Disease-free survivals for MF, PI, and IG subtypes, respectively, were 30 per cent, 0 per cent, and 57 per cent (P = 0.017). Overall survivals among ICC macroscopic subtypes were as follows: MF 37 per cent, PI 0 per cent, and IG 71 per cent (P = 0.003). Although limited by the small sample size of this rare cancer, this study demonstrates significant differences among macroscopic subtypes of ICC in both disease-free survivals and overall survivals after definitive partial hepatectomy.


Assuntos
Neoplasias dos Ductos Biliares/mortalidade , Neoplasias dos Ductos Biliares/cirurgia , Colangiocarcinoma/mortalidade , Colangiocarcinoma/cirurgia , Adulto , Idoso , Idoso de 80 Anos ou mais , Neoplasias dos Ductos Biliares/diagnóstico por imagem , Neoplasias dos Ductos Biliares/patologia , Colangiocarcinoma/diagnóstico por imagem , Colangiocarcinoma/patologia , Intervalo Livre de Doença , Feminino , Hepatectomia/métodos , Hepatectomia/mortalidade , Humanos , Estimativa de Kaplan-Meier , Masculino , Pessoa de Meia-Idade , Invasividade Neoplásica , Período Pós-Operatório , Tomografia Computadorizada por Raios X
10.
HPB (Oxford) ; 17(2): 140-9, 2015 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-25186290

RESUMO

OBJECTIVES: The optimal locoregional treatment for non-resectable hepatocellular carcinoma (HCC) of ≥ 3 cm in diameter is unclear. Transarterial chemoembolization (TACE) is the initial intervention most commonly performed, but it rarely eradicates HCC. The purpose of this study was to measure survival in HCC patients treated with adjuvant stereotactic body radiotherapy (SBRT) following TACE. METHODS: A retrospective study of patients with HCC of ≥ 3 cm was conducted. Outcomes in patients treated with TACE alone (n = 124) were compared with outcomes in those treated with TACE + SBRT (n = 37). RESULTS: There were no significant baseline differences between the two groups. The pre-TACE mean number of tumours (P = 0.57), largest tumour size (P = 0.09) and total tumour diameter (P = 0.21) did not differ significantly between the groups. Necrosis of the HCC tumour, measured after the first TACE, did not differ between the groups (P = 0.69). Local recurrence was significantly decreased in the TACE + SBRT group (10.8%) in comparison with the TACE-only group (25.8%) (P = 0.04). After censoring for liver transplantation, overall survival was found to be significantly increased in the TACE + SBRT group compared with the TACE-only group (33 months and 20 months, respectively; P = 0.02). CONCLUSIONS: This retrospective study suggests that in patients with HCC tumours of ≥ 3 cm, treatment with TACE + SBRT provides a survival advantage over treatment with only TACE. Confirmation of this observation requires that the concept be tested in a prospective, randomized clinical trial.


Assuntos
Carcinoma Hepatocelular/cirurgia , Quimioembolização Terapêutica , Neoplasias Hepáticas/cirurgia , Radiocirurgia , Idoso , Carcinoma Hepatocelular/diagnóstico por imagem , Carcinoma Hepatocelular/mortalidade , Carcinoma Hepatocelular/patologia , Carcinoma Hepatocelular/terapia , Quimioembolização Terapêutica/métodos , Feminino , Humanos , Neoplasias Hepáticas/diagnóstico por imagem , Neoplasias Hepáticas/mortalidade , Neoplasias Hepáticas/patologia , Neoplasias Hepáticas/terapia , Masculino , Pessoa de Meia-Idade , Radioterapia Adjuvante/métodos , Estudos Retrospectivos , Tomografia Computadorizada por Raios X
11.
HPB Surg ; 2014: 816246, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-25505820

RESUMO

Introduction. This study's objective was to identify risk factors associated with reoperation for bleeding following liver transplantation (LTx). Methods. A retrospective study was performed at a single institution between 2001 and 2012. Operative reports were used to identify patients who underwent reoperation for bleeding within 2 weeks following LTx (operations for nonbleeding etiologies were excluded). Results. Reoperation for bleeding was observed in 101/928 (10.8%) of LTx patients. The following characteristics were associated with reoperation on multivariable analysis: recipient MELD score (OR 1.06/MELD unit, 95% CI 1.03, 1.09), number of platelets transfused (OR 0.73/platelet unit, 95% CI 0.58, 0.91), and aminocaproic acid utilization (OR 0.46, 95% CI 0.27, 0.80). LTx patients who underwent reoperation for bleeding had a longer ICU stay (5 days ± 7 versus 2 days ± 3, P < 0.001) and hospitalization (18 days ± 9 versus 10 days ± 18, P < 0.001). The risk of death increased in patients who underwent reoperation for bleeding (HR 1.89, 95% CI 1.26, 2.85). Conclusion. Reoperation for bleeding following LTx was associated with increased resource utilization and recipient mortality. A lower threshold for intraoperative platelet transfusion and antifibrinolytics, especially in patients with high lab-MELD score, may decrease the incidence of reoperation for bleeding following LTx.

12.
HPB (Oxford) ; 16(12): 1095-101, 2014 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-25158123

RESUMO

OBJECTIVES: Repeat transarterial chemoembolization (TACE) is a common intervention performed for hepatocellular carcinoma (HCC). The aim of this study was to identify predictors of the need for repeat TACE. METHODS: Between 2008 and 2012, data on patient and tumour variables were collected for 262 patients treated with a first TACE procedure for HCC. The decision to perform repeat TACE procedures was made at the completion of the first TACE or after follow-up imaging demonstrated the subtotal treatment of HCC tumours. RESULTS: Repeat TACE was performed in 67 of 262 (25.6%) patients. Necrosis of HCC, measured after the first TACE, was lower in patients who subsequently received repeat TACE (P = 0.042). On multivariable analysis, total tumour diameter of >5 cm [odds ratio (OR) 2.76, 95% confidence interval (CI) 1.45-5.25; P = 0.002] and increasing age (OR 1.04/year, 95% CI 1.00-1.07; P = 0.030) were predictive of the need for repeat TACE. Measures of liver function and TACE approach (selective versus non-selective) were not predictive of repeat TACE. Median survival did not differ significantly between patients who did (median survival: 21.1 months) and did not (median survival: 26.1 months) receive a repeat TACE procedure (P = 0.574). CONCLUSIONS: The requirement for repeat TACE is associated with older age, increased HCC tumour burden and subtotal TACE-induced HCC necrosis. Importantly, repeat TACE was not associated with reduced survival.


Assuntos
Carcinoma Hepatocelular/tratamento farmacológico , Quimioembolização Terapêutica , Neoplasias Hepáticas/tratamento farmacológico , Fatores Etários , Idoso , Carcinoma Hepatocelular/mortalidade , Carcinoma Hepatocelular/patologia , Quimioembolização Terapêutica/efeitos adversos , Quimioembolização Terapêutica/mortalidade , Distribuição de Qui-Quadrado , Feminino , Humanos , Estimativa de Kaplan-Meier , Neoplasias Hepáticas/mortalidade , Neoplasias Hepáticas/patologia , Masculino , Pessoa de Meia-Idade , Análise Multivariada , Necrose , Razão de Chances , Retratamento , Estudos Retrospectivos , Fatores de Risco , Fatores de Tempo , Resultado do Tratamento , Carga Tumoral
13.
HPB (Oxford) ; 16(7): 648-55, 2014 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-25072067

RESUMO

BACKGROUND: Transarterial chemoembolization (TACE) is recommended as a treatment for unresectable hepatocellular carcinoma (HCC) in patients with normal underlying liver function. The efficacy of TACE in cirrhotic patients with compromised liver function is unknown. METHODS: All 'first' TACE interventions for HCC performed at a single institution from 2008 to 2012 were retrospectively reviewed (n = 190). Liver function was quantified via the Child's score. Tumour necrosis after TACE was quantified via the mRECIST criteria. RESULTS: The 'first' TACE procedures of 100 Child's A and 90 Child's B/C cirrhotic patients were evaluated. As expected, the lab-model for end-stage liver disease (MELD) score was significantly higher in the Child's B/C group. Although the number of tumours were similar between the groups, both the size of the largest tumour and the total tumour diameter were greater in the Child's A group. There were no significant differences in post-TACE tumour necrosis between groups. The median survival after TACE was significantly longer in the Child's A compared with Child's B/C patients (21.9 versus 13.7 months, P = 0.03). CONCLUSIONS: TACE appears to be equally efficacious in cirrhotic patients regardless of their Child's classification based upon equivalent mRECIST measures of tumour necrosis. However, inferior survival after TACE was observed in the Child's B/C group.


Assuntos
Carcinoma Hepatocelular/terapia , Quimioembolização Terapêutica , Cirrose Hepática/complicações , Neoplasias Hepáticas/terapia , Idoso , Alabama , Carcinoma Hepatocelular/diagnóstico , Carcinoma Hepatocelular/etiologia , Carcinoma Hepatocelular/mortalidade , Carcinoma Hepatocelular/fisiopatologia , Quimioembolização Terapêutica/efeitos adversos , Quimioembolização Terapêutica/mortalidade , Feminino , Humanos , Estimativa de Kaplan-Meier , Cirrose Hepática/diagnóstico , Cirrose Hepática/mortalidade , Cirrose Hepática/fisiopatologia , Testes de Função Hepática , Neoplasias Hepáticas/diagnóstico , Neoplasias Hepáticas/etiologia , Neoplasias Hepáticas/mortalidade , Neoplasias Hepáticas/fisiopatologia , Masculino , Pessoa de Meia-Idade , Necrose , Seleção de Pacientes , Valor Preditivo dos Testes , Modelos de Riscos Proporcionais , Estudos Retrospectivos , Fatores de Risco , Fatores de Tempo , Resultado do Tratamento
14.
HPB (Oxford) ; 16(4): 327-35, 2014 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-23980917

RESUMO

BACKGROUND: Radiographical features associated with a favourable response to trans-arterial chemoembolization (TACE) are poorly defined for patients with hepatocellular carcinoma (HCC). METHODS: From 2008 to 2012, all first TACE interventions for HCC performed at the University of Alabama at Birmingham (UAB) were retrospectively reviewed. Only patients with a pre-TACE and a post-TACE computed tomography (CT) scan were included in the analyses (n = 115). HCC tumour response to TACE was quantified via the the modified Response Evaluation Criteria in Solid Tumors (mRECIST) criteria. Univariate and multivariable analyses were constructed. RESULTS: The index HCC tumours experienced a > 90% or complete tumour necrosis in 59/115 (51%) of patients after the first TACE intervention. On univariate analysis, smaller tumour size, peripheral tumour location and arterial enhancement were associated with a > 90% or complete tumour necrosis, whereas, only smaller tumour size [odds ratio (OR) 0.62; 95% confidence interval (CI) 0.48, 0.81] and peripheral location (OR 6.91; 95% CI 1.75, 27.29) were significant on multivariable analysis. There was a trend towards improved survival in the patients that experienced a > 90% or complete tumour necrosis (P = 0.08). CONCLUSIONS: Peripherally located smaller HCC tumours are most likely to experience a > 90% or complete tumour necrosis after TACE. Surprisingly, arterial-phase enhancement and portal venous-phase washout were not significantly predictive of TACE-induced tumour necrosis. The TACE response was not statistically associated with improved survival.


Assuntos
Carcinoma Hepatocelular/diagnóstico por imagem , Carcinoma Hepatocelular/terapia , Quimioembolização Terapêutica , Neoplasias Hepáticas/diagnóstico por imagem , Neoplasias Hepáticas/terapia , Tomografia Computadorizada Multidetectores , Alabama , Carcinoma Hepatocelular/mortalidade , Carcinoma Hepatocelular/patologia , Humanos , Estimativa de Kaplan-Meier , Neoplasias Hepáticas/mortalidade , Neoplasias Hepáticas/patologia , Modelos Logísticos , Masculino , Pessoa de Meia-Idade , Análise Multivariada , Necrose , Razão de Chances , Seleção de Pacientes , Valor Preditivo dos Testes , Estudos Retrospectivos , Resultado do Tratamento
15.
HPB (Oxford) ; 14(9): 625-34, 2012 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-22882200

RESUMO

BACKGROUND: Orthotopic liver transplantation (LT) in non-alcoholic steatohepatitis (NASH) is increasing in parallel with the obesity epidemic. METHODS: This study retrospectively reviewed the clinical outcomes of LTs in NASH (n = 129) and non-NASH (n = 775) aetiologies carried out at a single centre between 1999 and 2009. RESULTS: Rates of 1-, 3- and 5-year overall survival in NASH (90%, 88% and 85%, respectively) were comparable with those in non-NASH (92%, 86% and 80%, respectively) patients. Mortality within 4 months of LT was twice as high in NASH as in non-NASH patients (8.5% vs. 4.2%; P = 0.04). Compared with non-NASH patients, post-LT mortality in NASH patients was more commonly caused by infectious (38% vs. 26%; P < 0.05) or cardiac (19% vs. 7%; P < 0.05) aetiologies. Five-year survival was lower in NASH patients with a high-risk phenotype (age >60 years, body mass index >30 kg/m(2), with hypertension and diabetes) than in NASH patients without these characteristics (72% vs. 87%; P = 0.02). Subgroup analyses revealed that 5-year overall survival in NASH was equivalent to that in Laennec's cirrhosis (85% vs. 80%; P 0.87), but lower than that in cirrhosis of cryptogenic aetiology (85% vs. 96%; P = 0.04). CONCLUSIONS: Orthotopic LT in NASH was associated with increased early postoperative mortality, but 1-, 3- and 5-year overall survival rates were equivalent to those in non-NASH patients.


Assuntos
Fígado Gorduroso/cirurgia , Hepatopatias/cirurgia , Transplante de Fígado/mortalidade , Adulto , Idoso , Alabama , Causas de Morte , Distribuição de Qui-Quadrado , Fígado Gorduroso/mortalidade , Feminino , Humanos , Estimativa de Kaplan-Meier , Hepatopatias/mortalidade , Transplante de Fígado/efeitos adversos , Masculino , Pessoa de Meia-Idade , Análise Multivariada , Hepatopatia Gordurosa não Alcoólica , Complicações Pós-Operatórias/etiologia , Complicações Pós-Operatórias/mortalidade , Complicações Pós-Operatórias/cirurgia , Modelos de Riscos Proporcionais , Reoperação , Estudos Retrospectivos , Medição de Risco , Fatores de Risco , Fatores de Tempo , Resultado do Tratamento
16.
Vasc Endovascular Surg ; 46(1): 70-4, 2012 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-22156151

RESUMO

We describe a technique that allows repositioning of malfunctioning peritoneovenous shunt (PVS) catheters. We report a 67-year-old female with refractory ascites, who presented with malfunctioning PVS. The catheter tip was outside the superior vena cava (SVC), possibly in a small mediastinal vein, which makes its tip inaccessible to regular snares and retrieval devices. We used "in situ" loop snare technique to reposition the tip of the catheter into the inferior vena cava (IVC). In situ loop snare technique can be used to reposition malfunctioning PVS catheters caused by a kink or by malposition of its tip. The technique avoids surgical or interventional replacement of these catheters. This technique can be also used for retrieval of foreign body fragments that have no free ends and, therefore, cannot be captured by a snare or other retrieval devices.


Assuntos
Ascite/terapia , Cateterismo Venoso Central/instrumentação , Cateteres de Demora , Derivação Peritoneovenosa/instrumentação , Veia Cava Superior , Idoso , Cateterismo Venoso Central/efeitos adversos , Desenho de Equipamento , Falha de Equipamento , Feminino , Humanos , Derivação Peritoneovenosa/efeitos adversos , Flebografia , Radiografia Intervencionista , Resultado do Tratamento , Veia Cava Superior/diagnóstico por imagem
17.
HPB (Oxford) ; 13(1): 24-32, 2011 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-21159100

RESUMO

BACKGROUND: Radiofrequency ablation (RFA) of hepatocellular carcinoma (HCC) is widely utilized as a bridge to liver transplant with limited evidence to support efficacy. The purpose of the present study was to measure the effect of RFA on time to drop-off in HCC-listed patients. METHODS: Patients with Milan criteria tumours listed between January 1999 and June 2007 were stratified into RFA (n= 77) and No Treatment groups (n= 93). RESULTS: The primary effectiveness of RFA was 83% (complete radiographic response). RFA was associated with a longer median wait time to transplant (9.5 vs. 5 months). Tumour-specific drop-off events were equivalent between RFA (21%) and No Treatment (12%) groups (P= 0.11). Controlling for wait time, there was no difference in overall (P= 0.56) or tumour-specific drop-off (P= 0.94). Furthermore, there were no differences in 5-year overall or tumour-free survivals from list date or transplant. Using multivariate analysis, the likelihood of receiving a transplant and patient survivals were associated with tumour characteristics (AFP, tumour number and size) and not with bridge therapy or waiting time. DISCUSSION: RFA allows patients to be maintained longer on the waiting list without negative consequences on drop-off or survival compared with no treatment. Post-transplant outcomes are affected more by tumour characteristics than RFA or wait time.


Assuntos
Carcinoma Hepatocelular/cirurgia , Ablação por Cateter/métodos , Neoplasias Hepáticas/cirurgia , Transplante de Fígado , Adulto , Idoso , Carcinoma Hepatocelular/mortalidade , Intervalo Livre de Doença , Feminino , Seguimentos , Humanos , Neoplasias Hepáticas/mortalidade , Masculino , Pessoa de Meia-Idade , Pacientes Desistentes do Tratamento/estatística & dados numéricos , Prognóstico , Estudos Retrospectivos , Taxa de Sobrevida/tendências , Listas de Espera
18.
Liver Transpl ; 15(11): 1435-42, 2009 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-19877218

RESUMO

The ability to inform prospective donors of the psychosocial risks of living liver donation is currently limited by the scant empirical literature. The present study was designed to examine donor perceptions of the impact of donation on financial, vocational, and interpersonal life domains and identify demographic and clinical factors related to longer recovery times and greater life interference. A total of 143 donors completed a retrospective questionnaire that included a standardized measure of life interference [Illness Intrusiveness Rating Scale (IIRS)] and additional questions regarding the perceived impact of donation. Donor IIRS scores suggested that donors experience a relatively low level of life interference due to donation [1.60 +/- 0.72, with a possible range of 1 ("not very much" interference) to 7 ("very much" interference)]. However, approximately 1 in 5 donors reported that donating was a significant financial burden. Logistic regression analysis revealed that donors with a psychiatric diagnosis at or prior to donation took longer to return to their self-reported predonation level of functioning (odds ratio = 3.78, P = 0.016). Medical complications were unrelated to self-reported recovery time. Multiple regression analysis revealed 4 independent predictors of greater life interference: less time since donation (b = 0.11, P < 0.001), income lower than CAD$100,000 (b = 0.28, P = 0.038), predonation concerns about the donation process (b = 0.24, P = 0.008), and the perception that the recipient is not caring for the new liver (b = 0.12, P = 0.031). In conclusion, life interference due to living liver donation appears to be relatively low. Donors should be made aware of risk factors for greater life disruptions post-surgery and of the potential financial burden of donation.


Assuntos
Efeitos Psicossociais da Doença , Emprego , Hepatectomia , Doadores Vivos/psicologia , Complicações Pós-Operatórias , Adulto , Idoso , Canadá/epidemiologia , Estudos Transversais , Feminino , Custos de Cuidados de Saúde , Hepatectomia/economia , Hepatectomia/psicologia , Hepatectomia/estatística & dados numéricos , Humanos , Modelos Logísticos , Masculino , Transtornos Mentais/epidemiologia , Pessoa de Meia-Idade , Complicações Pós-Operatórias/economia , Complicações Pós-Operatórias/epidemiologia , Complicações Pós-Operatórias/psicologia , Valor Preditivo dos Testes , Psicologia , Fatores de Risco , Adulto Jovem
19.
J Vasc Surg ; 49(1): 255-9, 2009 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-19174264

RESUMO

This report describes a simple venous reconstructive technique that results in an autogenous vascular graft with sufficient luminal diameter for replacing the vena cava. The majority of vena caval reconstructions are performed using prosthetic grafts; however, graft infection is a concern in clean-contaminated hepatobiliary and retroperitoneal resections.


Assuntos
Veia Femoral/transplante , Lipossarcoma/cirurgia , Neoplasias Retroperitoneais/cirurgia , Procedimentos Cirúrgicos Vasculares , Veias Cavas/cirurgia , Anastomose Cirúrgica , Procedimentos Cirúrgicos do Sistema Digestório , Feminino , Humanos , Lipossarcoma/diagnóstico por imagem , Pessoa de Meia-Idade , Flebografia/métodos , Neoplasias Retroperitoneais/diagnóstico por imagem , Tomografia Computadorizada por Raios X , Transplante Autólogo , Resultado do Tratamento , Procedimentos Cirúrgicos Vasculares/efeitos adversos , Veias Cavas/diagnóstico por imagem
20.
Transplantation ; 86(11): 1560-4, 2008 Dec 15.
Artigo em Inglês | MEDLINE | ID: mdl-19077890

RESUMO

BACKGROUND: Urologic complications cause substantial morbidity in the pediatric population after renal transplantation, but their impact on graft survival and transplant costs is poorly understood. In this retrospective review, we evaluated the records of all pediatric renal transplant recipients at our center from 1995 to 2004. METHODS: Patient demographics, presence of urinary leak, stricture, compression, or vesicoureteral reflux, and hospital costs were analyzed. Univariable analysis identified predictors of complications and of need for reoperation, and Kaplan-Meier analysis was used to assess graft survival in relation to urinary complications. RESULTS: One hundred forty-seven children received renal transplants; mean follow-up was 1478+/-965 days. Nine (6.1%) patients had urologic complications and seven (4.8%) patients developed vesicoureteral reflux requiring reoperation. Sex, ischemia time, race, previous transplant, donor type, nephrectomy technique, and stent use did not affect the incidence of urologic complications. Previous urologic reconstruction and pretransplant ureteral pathologic conditions increased the risk of urologic complication and vesicoureteral reflux. Patients with urologic complications had equivalent graft survival, but triple the hospital costs of unaffected recipients. CONCLUSIONS: Prior urologic surgery is associated with increased risk of urologic complications posttransplant. Posttransplant urologic complications are associated with substantially increased costs in the first year after transplant, but not with decreased graft survival.


Assuntos
Transplante de Rim/efeitos adversos , Transplante de Rim/métodos , Doenças Urológicas/etiologia , Adolescente , Criança , Pré-Escolar , Feminino , Sobrevivência de Enxerto , Humanos , Lactente , Recém-Nascido , Transplante de Rim/economia , Masculino , Reoperação , Estudos Retrospectivos , Fatores de Risco , Resultado do Tratamento , Doenças Urológicas/complicações
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