Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 30
Filtrar
1.
J Clin Oncol ; : JCO2302745, 2024 Mar 19.
Artigo em Inglês | MEDLINE | ID: mdl-38502889

RESUMO

PURPOSE: To update an evidence-based guideline to assist in clinical decision-making for patients with advanced hepatocellular carcinoma (HCC). METHODS: ASCO convened an Expert Panel to update the 2020 guideline on systemic therapy for HCC. The panel updated the systematic review to include randomized controlled trials (RCTs) published through October 2023 and updated recommendations. RESULTS: Ten new RCTs met the inclusion criteria and were added to the evidence base. RECOMMENDATIONS: Atezolizumab + bevacizumab (atezo + bev) or durvalumab + tremelimumab (durva + treme) may be offered first-line for patients with advanced HCC, Child-Pugh class A liver disease, and Eastern Cooperative Oncology Group performance status 0-1. Where there are contraindications to these therapies, sorafenib, lenvatinib, or durvalumab may be offered first-line. Following first-line treatment with atezo + bev, second-line therapy with a tyrosine kinase inhibitor (TKI), ramucirumab (for patients with alpha-fetoprotein [AFP] ≥400 ng/mL), durva + treme, or nivolumab + ipilimumab (nivo + ipi) may be recommended for appropriate candidates. Following first-line therapy with durva + treme, second-line therapy with a TKI is recommended. Following first-line treatment with sorafenib or lenvatinib, second-line therapy options include cabozantinib, regorafenib for patients who previously tolerated sorafenib, ramucirumab (AFP ≥400 ng/mL), nivo + ipi, or durvalumab; atezo + bev or durva + treme may be considered for patients who did not have access to these therapies in the first-line setting, and do not have contraindications. Pembrolizumab or nivolumab are also options for appropriate patients following sorafenib or lenvatinib. Third-line therapy may be considered in Child-Pugh class A patients with good PS, using one of the agents listed previously that has a nonidentical mechanism of action with previously received therapy. A cautious approach to systemic therapy is recommended for patients with Child-Pugh class B advanced HCC. Further guidance on choosing between options is included within the guideline.Additional information is available at www.asco.org/gastrointestinal-cancer-guidelines.

2.
Proc Natl Acad Sci U S A ; 121(12): e2322453121, 2024 Mar 19.
Artigo em Inglês | MEDLINE | ID: mdl-38470919

RESUMO

The phlebotomine sandfly, Lutzomyia longipalpis, a major vector of the Leishmania parasite, uses terpene pheromones to attract conspecifics for mating. Examination of the L. longipalpis genome revealed a putative terpene synthase (TPS), which-upon heterologous expression in, and purification from, Escherichia coli-yielded a functional enzyme. The TPS, termed LlTPS, converted geranyl diphosphate (GPP) into a mixture of monoterpenes with low efficiency, of which ß-ocimene was the major product. (E,E)-farnesyl diphosphate (FPP) principally produced small amounts of (E)-ß-farnesene, while (Z,E)- and (Z,Z)-FPP yielded a mixture of bisabolene isomers. None of these mono- and sesquiterpenes are known volatiles of L. longipalpis. Notably, however, when provided with (E,E,E)-geranylgeranyl diphosphate (GGPP), LlTPS gave sobralene as its major product. This diterpene pheromone is released by certain chemotypes of L. longipalpis, in particular those found in the Ceará state of Brazil. Minor diterpene components were also seen as products of the enzyme that matched those seen in a sandfly pheromone extract.


Assuntos
Diterpenos , Psychodidae , Animais , Feromônios/metabolismo , Psychodidae/metabolismo , Diterpenos/metabolismo , Terpenos , Monoterpenos
3.
Clin Liver Dis (Hoboken) ; 23(1): e0103, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38312995
4.
Aliment Pharmacol Ther ; 59(6): 742-751, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38173278

RESUMO

BACKGROUND: Racial and ethnic disparities exist for hepatitis C virus (HCV) treatment and hepatocellular carcinoma (HCC) survival. AIM: To evaluate the impact of HCV treatment on such disparities. METHODS: In a retrospective cohort study, we analysed 6069 patients with HCV-related HCC (54.2% Asian, 30.1% White, 8.5% Black, and 7.3% Hispanic) from centres in the United States and Asia. RESULTS: The mean age was 61, 60, 59 and 68, respectively, for White, Black, Hispanic and Asian patients. Black patients were most likely to have Barcelona Clinic Liver Cancer stage D, vascular invasion and distant metastasis (23% vs. 5%-15%, 20% vs. 10%-17% and 10% vs. 5%-7%, respectively; all p < 0.0001). Treatment rate with direct-acting antiviral agents (DAA) was 35.9% for Asian, 34.9% for White, 30.3% for Hispanic (30.3%), and 18.7% for Black patients (p < 0.0001). Among those untreated or without sustained virologic response (SVR), 10-year survival rates were 35.4, 27.5, 19.3 and 14.0, respectively, for Asian, Hispanic, White and Black patients (p < 0.0001). There were no statistically significant differences among those with SVR (p = 0.44). On multivariable analysis adjusted for relevant confounders, there was no statistically significant association between survival and being Hispanic (aHR: 0.68, p = 0.26) or Black (aHR: 1.18, p = 0.60) versus White. There was a significant association between being Asian American and survival (aHR: 0.24, p = 0.001; non-U.S. Asian: aHR: 0.66, p = 0.05), and for SVR (aHR: 0.30, p < 0.0001). CONCLUSION: DAA treatment rates were suboptimal. Racial and ethnic disparities resolved with HCV cure. Early diagnosis and improved access to HCV treatment is needed for all patients with HCV infection.


Assuntos
Carcinoma Hepatocelular , Hepatite C Crônica , Hepatite C , Neoplasias Hepáticas , Humanos , Estados Unidos/epidemiologia , Antivirais/uso terapêutico , Hepacivirus , Resposta Viral Sustentada , Estudos Retrospectivos , Hepatite C Crônica/tratamento farmacológico , Detecção Precoce de Câncer , Hepatite C/tratamento farmacológico
5.
J Pers Soc Psychol ; 2023 Nov 16.
Artigo em Inglês | MEDLINE | ID: mdl-37971854

RESUMO

Intergroup felt understanding-the belief that outgroup members understand and accept ingroup perspectives-has been found to predict positive intergroup outcomes, but the mechanism through which it has its positive effects is unclear. Across eight studies, we tested the hypothesis that felt positive regard-the perception that outgroup members like and respect ingroup members-mediates the positive effects of felt understanding on outcomes like outgroup trust. Studies 1-6 (total N = 1,366) included cross-sectional and experimental designs and a range of intergroup settings such as Sunni-Shia relations in Lebanon, gender relations, and support for "Brexit" in the United Kingdom. Results of meta-analytic structural equation models across these studies provided evidence of the indirect effect of felt understanding via felt positive regard on outcomes including trust and positive relational emotions. Study 7 (N = 307) then tested the causal effect of felt positive regard through a direct manipulation. Findings confirmed that felt positive (vs. negative) regard did lead to more positive intergroup perceptions. Finally, Study 8 (N = 410) tested the indirect effect as a within-person change process using a year-long, two-wave study of the conflict in Chile between Indigenous Mapuche and Non-Indigenous Chileans: Change over time in felt understanding indirectly predicted change over time in trust via change in felt positive regard. We consider the theoretical implications of the findings for how intergroup relations may be improved and the possibilities presented by felt understanding for intervention development. (PsycInfo Database Record (c) 2023 APA, all rights reserved).

6.
Am J Transplant ; 23(11): 1771-1780, 2023 11.
Artigo em Inglês | MEDLINE | ID: mdl-37532179

RESUMO

Patients with hepatocellular carcinoma meeting united network for organ sharing (UNOS)-downstaging (DS) criteria have excellent liver transplantation (LT) outcomes after DS. However, outcomes for "all-comers" (AC) patients with tumors initially exceeding UNOS-DS are poorly understood. Patients meeting AC (n = 82) or UNOS-DS (n = 229) at 7 LT centers in 4 UNOS regions were prospectively followed from 2015-2020. AC patients had a lower probability of successful DS (67% vs 83% within 12 months; P < .001). The 3-year survival was 69% for UNOS-DS vs 58% for AC (P = .05) and reduced to 30% in patients with Child-Pugh B/C cirrhosis or alpha-fetoprotein (AFP) ≥ 500. Five-year LT probability was 42% for AC vs 74% in UNOS-DS (P = .10). Thirty-eight percent were understaged on explant, with the increasing sum of the largest tumor diameter plus the number of lesions before LT (odds ratio 1.3; P = .01) and AFP ≥ 20 (odds ratio 5.9; P = .005) associated with understaging. Post-LT 3-year survival was 91% for AC vs 81% for UNOS-DS (P = .67). In this first prospective multiregional study of AC patients from the multicenter evaluation of reduction in tumor size before liver transplantation (MERITS-LT) consortium, we observed a 65% probability of successful DS. Three-year survival in AC was nearly 60%, though AC with Child-Pugh B/C or AFP ≥ 500 had poor survival. Explant pathology and 3-year post-LT outcomes were similar between cohorts, suggesting that LT is a reasonable goal in selected AC patients.


Assuntos
Carcinoma Hepatocelular , Neoplasias Hepáticas , Transplante de Fígado , Humanos , Carcinoma Hepatocelular/patologia , Neoplasias Hepáticas/patologia , alfa-Fetoproteínas , Estudos Prospectivos , Estudos Retrospectivos , Recidiva Local de Neoplasia , Estudos Multicêntricos como Assunto
7.
J Pharm Pract ; 36(6): 1419-1423, 2023 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-35981562

RESUMO

Purpose: Further elucidate the potential drug interaction between tacrolimus and carbapenems in order to appropriately maintain the balance between infection treatment and therapeutic immunosuppression. Methods: This study was a retrospective evaluation of solid organ transplant recipients on a stable dose of tacrolimus who received either ertapenem or meropenem. Patients were excluded if they had acute kidney injury, acute liver failure, concomitant initiation of medications that interact with tacrolimus, or were pregnant. The primary endpoint was the change in the median daily tacrolimus dose after meropenem or ertapenem administration. The secondary endpoint was the change in serum tacrolimus levels after meropenem or ertapenem administration. Results: A total of 28 patients on tacrolimus were included in the study, 12 received ertapenem and 16 received meropenem. The median daily tacrolimus dose was 4.5 mg [IQR 3.0 mg - 8.8 mg] prior to and 3.4 mg [IQR 2.3 mg - 8.8 mg] after ertapenem administration. The median daily tacrolimus dose was 3.0 mg [IQR 1.6 mg - 5.5 mg] before and 3.0 mg [IQR 1.6 mg - 5.5 mg] after meropenem administration. No statistically significant difference in regard to the change in the median daily tacrolimus dose after ertapenem (P =.173) or meropenem administration (P =.755) was observed. There was no statistically significant difference found after ertapenem (P =.583) or meropenem (P =.317) administration when comparing pre- and post-administration median serum tacrolimus levels. Conclusion: The administration of ertapenem or meropenem did not affect serum tacrolimus levels or daily tacrolimus dose suggesting against empiric dose adjustments with co-administration.


Assuntos
Antibacterianos , Tacrolimo , Humanos , Ertapenem , Meropeném , Antibacterianos/uso terapêutico , Estudos Retrospectivos , beta-Lactamas/uso terapêutico
8.
Gastroenterology ; 161(5): 1502-1512, 2021 11.
Artigo em Inglês | MEDLINE | ID: mdl-34331914

RESUMO

BACKGROUND & AIMS: United Network of Organ Sharing (UNOS) has adopted uniform criteria for downstaging (UNOS-DS) of hepatocellular carcinoma (HCC) before liver transplantation (LT), but the downstaging success rate and intention-to-treat outcomes across broad geographic regions are unknown. METHODS: In this first multiregional study (7 centers, 4 UNOS regions), 209 consecutive patients with HCC undergoing downstaging based on UNOS-DS criteria were prospectively evaluated from 2016 to 2019. RESULTS: Probability of successful downstaging to Milan criteria and dropout at 2 years from the initial downstaging procedure was 87.7% and 37.3%, respectively. Pretreatment with lectin-reactive α-fetoprotein ≥10% (hazard ratio, 3.7; P = .02) was associated with increased dropout risk. When chemoembolization (n = 132) and yttrium-90 radioembolization (n = 62) were compared as the initial downstaging treatment, there were no differences in Modified Response Evaluation Criteria In Solid Tumors response, probability of or time to successful downstaging, waiting list dropout, or LT. Probability of LT at 3 years was 46.6% after a median of 17.2 months. In the explant, 17.5% had vascular invasion, and 42.8% exceeded Milan criteria (understaging). The only factor associated with understaging was the sum of the number of lesions plus largest tumor diameter on the last pre-LT imaging, and the odds of understaging increased by 35% per 1-unit increase in this sum. Post-LT survival at 2 years was 95%, and HCC recurrence occurred in 7.9%. CONCLUSION: In this first prospective multiregional study based on UNOS-DS criteria, we observed a successful downstaging rate of >80% and similar efficacy of chemoembolization and yttrium-90 radioembolization as the initial downstaging treatment. A high rate of tumor understaging was observed despite excellent 2-year post-LT survival of 95%. Additional LRT to reduce viable tumor burden may reduce tumor understaging.


Assuntos
Carcinoma Hepatocelular/terapia , Quimioembolização Terapêutica , Neoplasias Hepáticas/terapia , Transplante de Fígado , Compostos Radiofarmacêuticos/uso terapêutico , Listas de Espera , Idoso , Carcinoma Hepatocelular/diagnóstico por imagem , Carcinoma Hepatocelular/mortalidade , Carcinoma Hepatocelular/patologia , Quimioembolização Terapêutica/efeitos adversos , Quimioembolização Terapêutica/mortalidade , Progressão da Doença , Estudos de Viabilidade , Feminino , Humanos , Neoplasias Hepáticas/diagnóstico por imagem , Neoplasias Hepáticas/mortalidade , Neoplasias Hepáticas/patologia , Transplante de Fígado/efeitos adversos , Transplante de Fígado/mortalidade , Masculino , Pessoa de Meia-Idade , Recidiva Local de Neoplasia , Estadiamento de Neoplasias , Pacientes Desistentes do Tratamento , Estudos Prospectivos , Compostos Radiofarmacêuticos/efeitos adversos , Medição de Risco , Fatores de Risco , Fatores de Tempo , Resultado do Tratamento , Carga Tumoral , Estados Unidos , Listas de Espera/mortalidade
9.
Hepatol Commun ; 5(1): 122-132, 2021 01.
Artigo em Inglês | MEDLINE | ID: mdl-33437906

RESUMO

Metabolic-associated fatty liver disease (MAFLD) is a major cause of liver-related complications, including hepatocellular carcinoma (HCC). While MAFLD-related HCC is known to occur in the absence of cirrhosis, our understanding of MAFLD-related HCC in this setting is limited. Here, we characterize MAFLD-related HCC and the impact of cirrhosis and screening on survival. This was a multicenter, retrospective, cohort study of MAFLD-related HCC. MAFLD was defined based on the presence of race-adjusted overweight, diabetes, or both hypertension and dyslipidemia in the absence of excess alcohol use or other underlying cause of liver disease. The primary outcome of interest was overall survival, and the primary dependent variables were cirrhosis status and prior HCC screening. We used Kaplan-Meier methods to estimate overall survival and Cox proportional hazards models and random forest machine learning to determine factors associated with prognosis. This study included 1,382 patients from 11 centers in the United States and East/Southeast Asia. Cirrhosis was present in 62% of patients, but under half of these patients had undergone imaging within 12 months of HCC diagnosis. Patients with cirrhosis were more likely to have early stage disease but less often received curative therapy. After adjustment, cirrhosis was not associated with prognosis, but the presence of cancer-related symptoms at diagnosis was associated with poorer prognosis. Conclusion: Cirrhosis was not associated with overall survival in this cohort of MAFLD-related HCC, while diagnosis in the presence of symptoms was associated with poorer prognosis. The HCC surveillance rate in patients with MAFLD-related HCC was disappointingly low in a multicenter cohort.


Assuntos
Carcinoma Hepatocelular/mortalidade , Cirrose Hepática/complicações , Neoplasias Hepáticas/mortalidade , Hepatopatia Gordurosa não Alcoólica/complicações , Idoso , Ásia/epidemiologia , Feminino , Humanos , Masculino , Análise Multivariada , Prognóstico , Estudos Retrospectivos , Fatores de Risco , Análise de Sobrevida , Estados Unidos/epidemiologia
10.
Br J Psychiatry ; : 1-7, 2021 Dec 09.
Artigo em Inglês | MEDLINE | ID: mdl-35049485

RESUMO

BACKGROUND: Eating disorders are stigmatised. Little is known about whether stigma has decreased over time and which groups hold more stigmatising beliefs. AIMS: To explore whether stigma towards eating disorders has changed between 1998 and 2008 and whether it varies by sociodemographic characteristics. METHOD: We used the Office for National Statistics Omnibus surveys 1998 and 2008. As outcomes, we selected four questions eliciting participants' views on issues of blame and ability to recover, and compared their mean scores across eating disorders, depression and alcohol dependence in both years. We used multivariable linear regressions to investigate associations between sociodemographic characteristics and each stigma domain. RESULTS: In total, 2720 participants had data on all variables of interest. Compared with 1998, in 2008 stigmatising views towards eating disorders improved. In both years, participants believed it was easier to recover from eating disorders than depression or alcohol dependence. Respondents believed people with eating disorders were more to blame for their condition than those with depression, but less than those with alcohol dependence. Men, those with less formal education, and those from ethnic minority backgrounds were more likely to place greater blame on individuals for their mental illness. Men were more likely than women to think it was possible to recover from an eating disorder. CONCLUSIONS: Stigmatising attitudes towards people with eating disorders have improved over time, but are still greater than those observed for other mental illnesses. Improving eating disorder mental health literacy could help to reduce these negative views and lead to improved quality of life, greater help-seeking and better prognosis.

11.
J Clin Oncol ; 38(36): 4317-4345, 2020 12 20.
Artigo em Inglês | MEDLINE | ID: mdl-33197225

RESUMO

PURPOSE: To develop an evidence-based clinical practice guideline to assist in clinical decision making for patients with advanced hepatocellular carcinoma (HCC). METHODS: ASCO convened an Expert Panel to conduct a systematic review of published phase III randomized controlled trials (2007-2020) on systemic therapy for advanced HCC and provide recommended care options for this patient population. RESULTS: Nine phase III randomized controlled trials met the inclusion criteria. RECOMMENDATIONS: Atezolizumab + bevacizumab (atezo + bev) may be offered as first-line treatment of most patients with advanced HCC, Child-Pugh class A liver disease, Eastern Cooperative Oncology Group Performance Status (ECOG PS) 0-1, and following management of esophageal varices, when present, according to institutional guidelines. Where there are contraindications to atezolizumab and/or bevacizumab, tyrosine kinase inhibitors sorafenib or lenvatinib may be offered as first-line treatment of patients with advanced HCC, Child-Pugh class A liver disease, and ECOG PS 0-1. Following first-line treatment with atezo + bev, and until better data are available, second-line therapy with a tyrosine kinase inhibitor may be recommended for appropriate candidates. Following first-line therapy with sorafenib or lenvatinib, second-line therapy options for appropriate candidates include cabozantinib, regorafenib for patients who previously tolerated sorafenib, or ramucirumab (for patients with α-fetoprotein ≥ 400 ng/mL), or atezo + bev where patients did not have access to this option as first-line therapy. Pembrolizumab or nivolumab are also reasonable options for appropriate patients following sorafenib or lenvatinib. Consideration of nivolumab + ipilimumab as an option for second-line therapy and third-line therapy is discussed. Further guidance on choosing between therapy options is included within the guideline. Additional information is available at www.asco.org/gastrointestinal-cancer-guidelines.


Assuntos
Carcinoma Hepatocelular/tratamento farmacológico , Neoplasias Hepáticas/tratamento farmacológico , Humanos
12.
Gastroenterology ; 157(5): 1253-1263.e2, 2019 11.
Artigo em Inglês | MEDLINE | ID: mdl-31374215

RESUMO

BACKGROUND & AIMS: There is controversy regarding the benefits of direct-acting antiviral (DAA) therapy for hepatitis C virus (HCV) infection for patients with a history of hepatocellular carcinoma (HCC). We performed a multicenter cohort study to compare overall survival between patients with HCV infection treated with DAAs and patients who did not receive DAA treatment for their HCV infection after complete response to prior HCC therapy. METHODS: We conducted a retrospective cohort study of patients with HCV-related HCC who achieved a complete response to resection, local ablation, transarterial chemo- or radioembolization, or radiation therapy, from January 2013 through December 2017 at 31 health care systems throughout the United States and Canada. We used Cox proportional hazards regression to determine the association between receipt of DAA therapy, modeled as a time-varying covariate, and all-cause mortality, accounting for informative censoring and confounding using inverse probability weighting. RESULTS: Of 797 patients with HCV-related HCC, 383 (48.1%) received DAA therapy and 414 (51.9%) did not receive treatment for their HCV infection after complete response to prior HCC therapy. Among DAA-treated patients, 43 deaths occurred during 941 person-years of follow-up, compared with 103 deaths during 526.6 person-years of follow-up among patients who did not receive DAA therapy (crude rate ratio, 0.23; 95% confidence interval [CI], 0.16-0.33). In inverse probability-weighted analyses, DAA therapy was associated with a significant reduction in risk of death (hazard ratio, 0.54; 95% CI, 0.33-0.90). This association differed by sustained virologic response to DAA therapy; risk of death was reduced in patients with sustained virologic response to DAA therapy (hazard ratio, 0.29; 95% CI, 0.18-0.47), but not in patients without a sustained virologic response (hazard ratio, 1.13; 95% CI, 0.55-2.33). CONCLUSIONS: In an analysis of nearly 800 patients with complete response to HCC treatment, DAA therapy was associated with a significant reduction in risk of death.


Assuntos
Antivirais/uso terapêutico , Carcinoma Hepatocelular/terapia , Hepatite C/tratamento farmacológico , Neoplasias Hepáticas/terapia , Idoso , Antivirais/efeitos adversos , Carcinoma Hepatocelular/mortalidade , Carcinoma Hepatocelular/virologia , Feminino , Hepatite C/complicações , Hepatite C/mortalidade , Hepatite C/virologia , Humanos , Neoplasias Hepáticas/mortalidade , Neoplasias Hepáticas/virologia , Masculino , Pessoa de Meia-Idade , América do Norte , Fatores de Proteção , Estudos Retrospectivos , Medição de Risco , Fatores de Risco , Fatores de Tempo , Resultado do Tratamento
13.
Gastroenterology ; 156(6): 1683-1692.e1, 2019 05.
Artigo em Inglês | MEDLINE | ID: mdl-30660729

RESUMO

BACKGROUND & AIMS: There is controversy over the effects of direct-acting antiviral (DAA) therapies for hepatitis C virus (HCV) infection on hepatocellular carcinoma (HCC) recurrence and tumor aggressiveness. We compared HCC recurrence patterns between DAA-treated and untreated HCV-infected patients who had achieved a complete response to HCC treatment in a North American cohort. METHODS: We conducted a retrospective cohort study of patients with HCV-related HCC with a complete response to resection, local ablation, transarterial chemo- or radioembolization, or radiation therapy from January 2013 through December 2017 at 31 health systems throughout the United States and Canada. Cox regression was used to examine the association between DAA therapy and time to recurrence after a complete response, with DAA therapy analyzed as a time-varying exposure. We also estimated the association between DAA therapy and risk of early HCC recurrence (defined as 365 days after complete response). RESULTS: Of 793 patients with HCV-associated HCC, 304 (38.3%) received DAA therapy and 489 (61.7%) were untreated. HCC recurred in 128 DAA-treated patients (42.1%; early recurrence in 52 patients) and 288 untreated patients (58.9%; early recurrence in 227 patients). DAA therapy was not associated with HCC recurrence (hazard ratio 0.90, 95% confidence interval 0.70-1.16) or early HCC recurrence (hazard ratio 0.96, 95% confidence interval 0.70-1.34) after we adjusted for study site, age, sex, Child-Pugh score, α-fetoprotein level, tumor burden, and HCC treatment modality. In DAA-treated and untreated patients, most recurrences were within the Milan criteria (74.2% vs 78.8%; P = .23). A larger proportion of DAA-treated than untreated patients received potentially curative HCC therapy for recurrent HCC (32.0% vs 24.6%) and achieved a complete or partial response (45.3% vs 41.0%) but this did not achieve statistical significance. CONCLUSION: In a large cohort of North American patients with complete response to HCC treatment, DAA therapy was not associated with increased overall or early HCC recurrence. HCC recurrence patterns, including treatment response, were similar in DAA-treated and untreated patients.


Assuntos
Antivirais/uso terapêutico , Carcinoma Hepatocelular/virologia , Hepatite C Crônica/tratamento farmacológico , Neoplasias Hepáticas/virologia , Recidiva Local de Neoplasia/epidemiologia , Idoso , Canadá/epidemiologia , Carcinoma Hepatocelular/terapia , Feminino , Hepatite C Crônica/complicações , Humanos , Neoplasias Hepáticas/terapia , Masculino , Pessoa de Meia-Idade , Recidiva Local de Neoplasia/terapia , Recidiva Local de Neoplasia/virologia , Estudos Retrospectivos , Resposta Viral Sustentada , Fatores de Tempo , Estados Unidos/epidemiologia
15.
Clin Gastroenterol Hepatol ; 16(6): 955-964, 2018 06.
Artigo em Inglês | MEDLINE | ID: mdl-29175528

RESUMO

BACKGROUND & AIMS: Single-center studies have reported excellent outcomes of patients who underwent liver transplantation for hepatocellular carcinoma (HCC) after successful down-staging (reduction of tumor burden with local-regional therapy), but multi-center studies are lacking. We performed a multi-center study, applying a uniform down-staging protocol, to assess outcomes of liver transplantation and performed an intention to treat analysis. We analyzed factors associated with treatment failure, defined as dropout from the liver transplant waitlist due to tumor progression, liver-related death without transplant, or recurrence of HCC after transplant. METHODS: We performed a retrospective multi-center study of 187 consecutive adults with HCC enrolled in the down-staging protocol at 3 liver transplant centers in California (Region 5), from 2002 through 2012. All patients underwent abdominal imaging 1 month after each local-regional treatment, and at a minimum of once every 3 months. The primary outcome was probability of treatment failure. RESULTS: Liver transplantation was performed after successful down staging in 109 patients (58%). Tumor explant from only 1 patient had poorly differentiated grade and 7 (6.4%) had vascular invasion. Based on Kaplan-Meier analysis of data collected a median 4.3 years after liver transplantation, 95% of patients would survive 1 year and 80% of patients would survive 5 years; probabilities of recurrence-free survival were 95% and 87%, respectively. There were no center-specific differences in survival in the intention to treat analysis (P = .62), in survival after liver transplantation (P = .95), or in recurrence of HCC (P = .99). Patients were removed from the liver transplantation waitlist due to tumor progression in (n = 59; 32%) or liver-related death without liver transplantation (n = 9; 5%). Factors associated with treatment failure, based on multivariable analysis, were pre-treatment levels of alpha-fetoprotein (AFP) >1000 ng/mL (hazard ratio, 3.3; P < .001) and Child Pugh class B or C (hazard ratio, 1.6; P < .001). The probability of treatment failure at 2 years from the first down-staging procedure was 100% for patients with levels of AFP >1000 and Child Pugh class B or C vs 29.4% for patients with neither risk factor (P < .001). CONCLUSIONS: In a retrospective, multi-center study on HCC down staging under a uniform protocol, we found patients to have excellent outcomes following liver transplantation, with no center-specific effects. Our findings support application of the down-staging protocol on a broader scale. Patients with Child Pugh class B or C and AFP >1000 are unlikely to benefit from down staging.


Assuntos
Carcinoma Hepatocelular/patologia , Carcinoma Hepatocelular/cirurgia , Neoplasias Hepáticas/patologia , Neoplasias Hepáticas/terapia , Transplante de Fígado , Idoso , California , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estadiamento de Neoplasias , Recidiva , Estudos Retrospectivos , Análise de Sobrevida , Resultado do Tratamento
16.
World J Gastroenterol ; 21(42): 12197-210, 2015 Nov 14.
Artigo em Inglês | MEDLINE | ID: mdl-26576104

RESUMO

AIM: To conduct a meta-analysis to investigate the clinical outcomes of surgical resection and locoregional treatments for hepatocellular carcinoma (HCC) in elderly patients defined as aged 70 years or more. METHODS: Literature documenting a comparison of clinical outcomes for elderly and non elderly patients with hepatocellular carcinoma was identified by searching PubMed, Ovid, Cochrane Library, and Web of Science databases, for those from inception to March 2015 with no limits. Dichotomous outcomes and standard meta-analysis techniques were used. Heterogeneity was tested by the Cochrane Q statistic. Pooled estimates were measured using the fixed or random effect model. RESULTS: Twenty three studies were included with a total of 12482 patients. Of these patients, 6341 were treated with surgical resection, 3138 were treated with radiofrequency ablation (RFA), and 3003 were treated with transarterial chemoembolization (TACE). Of the patients who underwent surgical resection, the elderly had significantly more respiratory co-morbidities than the younger group, with both groups having a similar proportion of cardiovascular co-morbidities and diabetes. After 1 year, the elderly group had significantly increased survival rates after surgical resection compared to the younger group (OR = 0.762, 95%CI: 0.583-0.994, P = 0.045). However, the 3-year and 5-year survival outcomes with surgical resection between the two groups were similar (OR = 0.947, 95%CI: 0.777-1.154, P = 0.67 for the third year; and OR = 1.131, 95%CI: 0.895-1.430, P = 0.304 for the fifth year). Postoperative treatment complications were similar between the elderly and younger group. The elderly group and younger group had similar survival outcomes for the first and third year after RFA (OR = 1.5, 95%CI: 0.788-2.885, P = 0.217 and OR = 1.352, 95%CI: 0.940-1.944, P = 0.104). For the fifth year, the elderly group had significantly worse survival rates compared to the younger group after RFA (OR = 1.379, 95%CI: 1.079-1.763, P = 0.01). For patients who underwent TACE, the elderly group had significantly increased survival compared to the younger group for the first and third year (OR = 0.664, 95%CI: 0.548-0.805, P = 0.00 and OR = 0.795, 95%CI: 0.663-0.953, P = 0.013). At the fifth year, there were no significant differences in overall survival between the elderly group and younger group (OR = 1.256, 95%CI: 0.806-1.957, P = 0.313). CONCLUSION: The optimal management strategy for elderly patients with HCC is dependent on patient and tumor characteristics. Compared to patients less than 70, elderly patients have similar three year survival after resection and ablation and an improved three year survival after TACE. At five years, elderly patients had a lower survival after ablation but similar survival with resection and TACE as compared to younger patients. Heterogeneity of patient populations and selection bias can explain some of these findings. Overall, elderly patients have similar success, if not better, with these treatments and should be considered for all treatments after assessment of their clinical status and cancer burden.


Assuntos
Carcinoma Hepatocelular/terapia , Ablação por Cateter , Quimioembolização Terapêutica , Hepatectomia , Neoplasias Hepáticas/terapia , Fatores Etários , Carcinoma Hepatocelular/diagnóstico , Carcinoma Hepatocelular/mortalidade , Ablação por Cateter/efeitos adversos , Ablação por Cateter/mortalidade , Quimioembolização Terapêutica/efeitos adversos , Quimioembolização Terapêutica/mortalidade , Comorbidade , Intervalo Livre de Doença , Hepatectomia/efeitos adversos , Hepatectomia/mortalidade , Humanos , Neoplasias Hepáticas/diagnóstico , Neoplasias Hepáticas/mortalidade , Razão de Chances , Seleção de Pacientes , Medição de Risco , Fatores de Risco , Análise de Sobrevida , Fatores de Tempo , Resultado do Tratamento
17.
Case Rep Transplant ; 2015: 286276, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-26240773

RESUMO

Patients undergoing antiviral therapy for chronic hepatitis C often develop anemia secondary to ribavirin and interferon. Recombinant erythropoietin has been used to improve anemia associated with antiviral therapy and to minimize dose reductions, which are associated with decreased rates of sustained virologic response. A rare potential side effect of recombinant erythropoietin is anti-erythropoietin antibody associated pure red cell aplasia. In chronic kidney disease patients with this entity, there have been good outcomes associated with renal transplant and subsequent immunosuppression. In this case, a chronic liver disease patient developed anti-erythropoietin associated pure red cell aplasia and recovered after liver transplantation and immunosuppression. It is unclear whether it is the transplanted organ, the subsequent immunosuppression, or the combination that contributed to the response. In conclusion, anti-erythropoietin associated pure red cell aplasia is a serious complication of erythropoietin therapy, but this entity should not be considered a contraindication for solid organ transplantation.

18.
Liver Transpl ; 20(10): 1221-8, 2014 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-25045002

RESUMO

Liver transplantation (LT) is the treatment of choice for patients with cirrhosis and hepatocellular carcinoma (HCC) not amenable to resection. Locoregional therapies for HCC are often used to reduce tumor burden, bridge patients to LT, and down-stage HCC so that patients are eligible for LT. We hypothesized that prior endovascular antitumor therapy may increase the risk of hepatic artery (HA) and biliary complications after LT. The aim of this study was to compare HA and biliary complications in LT recipients with HCC who received transarterial chemoembolization (TACE) before LT with complications in LT recipients with HCC who did not receive TACE before LT. This was a retrospective cohort study of HCC patients at two transplant centers. The prevalence of HA complications (HA thrombosis, stenosis, or pseudoaneurysm) and biliary complications (nonanastomotic stricture, bile leak, and diffuse injury) were compared between patients treated with or without TACE. There were 456 HCC patients with a median age of 61 years (77% were male, and 63% had hepatitis C virus), and 328 (72%) received TACE before LT. The overall prevalence of HA complications was 4.7% in the no-TACE group and 7.9% in the TACE group (P = 0.22). All HA stenosis complications (n = 14) occurred in the TACE group (P = 0.018 versus the no-TACE group). An older donor age and a lower albumin level significantly increased the odds of HA complications. There was a nonstatistically significant increased odds of HA complications in the TACE group versus the no-TACE group according to an adjusted analysis (odds ratio = 2.02, 95% confidence interval = 0.79-5.16, P = 0.14). The overall prevalence of biliary complications was 16.4% in the no-TACE group and 19.8% in the TACE group (P = 0.40). In conclusion, a lower pre-LT albumin level and an older donor age were significantly associated with higher odds of HA complications after LT. TACE was not associated with higher odds of overall HA complications but was associated with a higher prevalence of HA stenosis. Further studies are warranted to confirm the HA stenosis findings and elucidate the pathogenesis.


Assuntos
Sistema Biliar/patologia , Carcinoma Hepatocelular/terapia , Quimioembolização Terapêutica/efeitos adversos , Artéria Hepática/patologia , Neoplasias Hepáticas/terapia , Transplante de Fígado , Adulto , Idoso , California/epidemiologia , Carcinoma Hepatocelular/mortalidade , Quimioembolização Terapêutica/métodos , Constrição Patológica , Feminino , Seguimentos , Previsões , Humanos , Neoplasias Hepáticas/mortalidade , Masculino , Pessoa de Meia-Idade , Cuidados Pré-Operatórios/métodos , Estudos Retrospectivos , Fatores de Risco , Taxa de Sobrevida/tendências
19.
Can J Diet Pract Res ; 75(2): 95-100, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-24897016

RESUMO

A provincial focus on immigration and improved foreign credential recognition has led to an investigation of best practices and subsequent recommendations for the development and implementation of a sustainable university-based bridging program for internationally educated dietitians in Atlantic Canada. Data were collected from various sources and used to inform program decisions and direction. An advisory framework was established through a core group representing dietetics education and regulation and internationalization. Subsequently, a key stakeholder group was formed. As a result of this collaboration and research, a dietetics bridging framework was developed and a program pilot tested. Lessons learned may inform similar endeavours and highlight the importance of collaborative leadership and collaboration among multiple stakeholders, and of creatively addressing program sustainability issues while keeping learners (internationally educated dietitians) at the centre.


Assuntos
Credenciamento , Emigrantes e Imigrantes , Nutricionistas/educação , Humanos , Nova Escócia , Nutricionistas/normas , Projetos Piloto
20.
Transplantation ; 98(7): 781-7, 2014 Oct 15.
Artigo em Inglês | MEDLINE | ID: mdl-24825513

RESUMO

BACKGROUND: Hepatocellular carcinoma (HCC) is responsible for significant morbidity and mortality worldwide. Despite its increasing incidence, significant progress has been made in the clinical management of HCC. Transarterial chemoembolization (cTACE) has been shown to improve survival in patients with unresectable HCC; it has also been successfully used as bridging therapy before orthotopic liver transplantation (OLT) in efforts to delay tumor growth or to downstage HCC. TACE with drug-eluting beads (DEB-TACE), a novel drug delivery system that produces a slow and sustained release of chemotherapeutic agent, has recently been shown to have similar efficacy to conventional TACE (cTACE); it also exhibits fewer adverse effects resulting from reduced systemic drug concentrations. To date, the pathologic response rate to cTACE compared with DEB-TACE in patients undergoing OLT has not been well described. METHODS: A total of 111 consecutive patients with HCC who underwent cTACE (n=76) or DEB-TACE (n=35) before OLT at a single center between January 2005 and December 2010 were evaluated. RESULTS: Complete necrosis was achieved in 50.9% and 57.1% of cTACE and DEB-TACE patients, respectively; at least 50% necrosis was evident in approximately three fourths of patients in both groups. Rates of necrosis and tumor recurrence did not differ between groups. Dropout from the transplant list was equal in both groups. CONCLUSIONS: Either modality is an acceptable treatment to achieve tumor control for patients awaiting OLT and can be expected to result in excellent necrosis rates in the majority of patients.


Assuntos
Antineoplásicos/química , Quimioembolização Terapêutica/métodos , Transplante de Fígado , Idoso , Carcinoma Hepatocelular/patologia , Carcinoma Hepatocelular/cirurgia , Sistemas de Liberação de Medicamentos , Feminino , Seguimentos , Humanos , Neoplasias Hepáticas/patologia , Neoplasias Hepáticas/cirurgia , Masculino , Pessoa de Meia-Idade , Necrose , Recidiva Local de Neoplasia , Resultado do Tratamento
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA
...