Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 26
Filtrar
Mais filtros

Bases de dados
País/Região como assunto
Tipo de documento
País de afiliação
Intervalo de ano de publicação
1.
Liver Transpl ; 24(9): 1233-1242, 2018 09.
Artigo em Inglês | MEDLINE | ID: mdl-29729113

RESUMO

Orthotopic liver transplantation (OLT) and resection are effective treatments for hepatocellular carcinoma (HCC). However, optimizing OLT and limiting HCC recurrence remains a vexing problem. New HCC Model for End-Stage Liver Disease and allocation algorithms provide greater observation of HCC patients, many while receiving local-regional treatments. Potential benefits of local-regional treatment for limiting HCC recurrence after OLT remain incompletely understood. Therefore, we aimed to define HCC-specific prognostic factors affecting recurrence in a contemporary, multicenter cohort of HCC patients undergoing OLT and specifically whether local-regional therapies limited recurrence. We identified 441 patients undergoing OLT for HCC at 3 major transplant centers from 2008 to 2013. Cox regression was used to analyze covariate-adjusted recurrence and mortality rates after OLT. "Bridging" or "downstaging" therapy was used in 238 (54%) patients with transarterial chemoembolization (TACE) being used in 170 (71%) of treated patients. The survival rate after OLT was 88% and 78% at 1 and 3 years, respectively, with HCC recurrence (28% of deaths) significantly increasing the mortality rate (hazard ratio [HR], 19.87; P < 0.001). Tumor size, not tumor number, either at presentation or on explant independently predicted HCC recurrence (HR, 1.36 and 1.73, respectively; P < 0.05) with a threshold effect noted at 4.0-cm size. Local-regional therapy (TACE) reduced HCC recurrence by 64% when adjusting for presenting tumor size (HR, 0.36; P < 0.05). Explant tumor size and microvascular invasion predicted mortality (HR, 1.19 and 1.51, respectively; P < 0.05) and pathologic response to therapy (TACE or radiofrequency ablation) significantly decreased explant tumor size (0.56-1.62 cm diameter reduction; P < 0.05). In conclusion, HCC tumor size at presentation or explant is the most important predictor for HCC recurrence after OLT. Local-regional therapy to achieve a pathologic response (decreasing tumor size) can limit HCC recurrences after OLT. Liver Transplantation 00 000-000 2018 AASLD.


Assuntos
Carcinoma Hepatocelular/cirurgia , Neoplasias Hepáticas/cirurgia , Transplante de Fígado/efeitos adversos , Recidiva Local de Neoplasia , Adulto , Idoso , Carcinoma Hepatocelular/mortalidade , Carcinoma Hepatocelular/secundário , Progressão da Doença , Feminino , Humanos , Neoplasias Hepáticas/mortalidade , Neoplasias Hepáticas/patologia , Transplante de Fígado/mortalidade , Masculino , Pessoa de Meia-Idade , Estadiamento de Neoplasias , Estudos Retrospectivos , Medição de Risco , Fatores de Risco , Fatores de Tempo , Resultado do Tratamento , Carga Tumoral , Estados Unidos
2.
J Vasc Surg ; 64(5): 1392-1399, 2016 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-27444362

RESUMO

OBJECTIVE: With improvements in medical management and survival of patients with end-stage renal disease, maintaining durable vascular access is increasingly challenging. This study compared primary, assisted primary, and secondary patency, and procedure-specific complications, and evaluated whether the number of interventions to maintain or restore patency differed between prosthetic femoral-femoral looped inguinal access (thigh) grafts and Hemodialysis Reliable Outflow (HeRO; Hemosphere Inc, Minneapolis, Minn) grafts. METHODS: A single-center, retrospective, intention-to-treat analysis was conducted of consecutive thigh and HeRO grafts placed between May 2004 and June 2015. Medical history, interventions to maintain or restore patency, and complications were abstracted from the electronic medical record. Data were analyzed using parametric and nonparametric statistical tests, Kaplan-Meier survival methods, and multivariable proportional hazards regression and logistic regression. RESULTS: Seventy-six (43 thigh, 33 HeRO) grafts were placed in 61 patients (54% male; age 53 [standard deviation, 13] years). Median follow-up time in the intention-to-treat analysis was 21.2 months (min, 0.0; max, 85.3 months) for thigh grafts and 6.7 months (min, 0.0; max, 56.3 months) for HeRO grafts (P = .02). The groups were comparable for sex, age, coronary artery disease, diabetes mellitus, peripheral vascular disease, and smoking history (all P ≥ .12). One thigh graft (2%) and five HeRO (15%) grafts failed primarily. In the intention-to-treat analysis, patency durations were significantly longer in the thigh grafts (all log-rank P ≤ .01). Point estimates of primary patency at 6 months, 1 year, and 3 years were 61%, 46%, and 4% for the thigh grafts and 25%, 15%, and 6% for the HeRO grafts. Point estimates of assisted primary patency at 6 months, 1 year, and 3 years were 75%, 66%, and 54% for the thigh grafts and 41%, 30%, and 10% for the HeRO grafts. Point estimates of secondary patency at 6 months, 1 year, and 3 years were 88%, 88%, and 70% for the thigh grafts and 53%, 43%, and 12% for the HeRO grafts. There were no differences in ischemic (P = .63) or infectious (P = .79) complications between the groups. Multivariable logistic regression demonstrated that after adjusting for follow-up time, HeRO grafts were associated with an increased number of interventions (P = .03). CONCLUSIONS: Thigh grafts have significantly better primary, assisted primary, and secondary patency compared with HeRO grafts. There is no significant difference between thigh grafts and HeRO grafts in ischemic or infectious complications. Our logistic regression model demonstrated an association between HeRO grafts and an increased number of interventions to maintain or restore patency. Although HeRO grafts may extend the use of the upper extremity, thigh grafts provide a more durable option for chronic hemodialysis.


Assuntos
Derivação Arteriovenosa Cirúrgica/instrumentação , Implante de Prótese Vascular/instrumentação , Prótese Vascular , Artéria Femoral/cirurgia , Veia Femoral/cirurgia , Falência Renal Crônica/terapia , Diálise Renal , Coxa da Perna/irrigação sanguínea , Extremidade Superior/irrigação sanguínea , Grau de Desobstrução Vascular , Adulto , Idoso , Derivação Arteriovenosa Cirúrgica/efeitos adversos , Prótese Vascular/efeitos adversos , Implante de Prótese Vascular/efeitos adversos , Registros Eletrônicos de Saúde , Feminino , Artéria Femoral/fisiopatologia , Veia Femoral/fisiopatologia , Oclusão de Enxerto Vascular/etiologia , Oclusão de Enxerto Vascular/fisiopatologia , Oclusão de Enxerto Vascular/terapia , Humanos , Análise de Intenção de Tratamento , Estimativa de Kaplan-Meier , Modelos Logísticos , Masculino , Pessoa de Meia-Idade , Análise Multivariada , Modelos de Riscos Proporcionais , Desenho de Prótese , Infecções Relacionadas à Prótese/microbiologia , Infecções Relacionadas à Prótese/terapia , Retratamento , Estudos Retrospectivos , Fatores de Risco , Tennessee , Fatores de Tempo , Resultado do Tratamento
3.
Clin Transplant ; 30(9): 1036-45, 2016 09.
Artigo em Inglês | MEDLINE | ID: mdl-27291713

RESUMO

BACKGROUND: The effect of awarding MELD exception points for hepatocellular carcinoma (HCC) on patient-reported outcomes (PROs) is unknown. We evaluated the physical and mental health-related quality of life (HRQOL) and symptoms of anxiety and depression in liver transplant recipients with HCC compared to patients without HCC. METHODS: The single-center sample measured PROs before and after transplant, which included 1521 multisurvey measurement points among 502 adults (67% male, 28% HCC, follow-up time: <1-131 months). Data were analyzed using multivariable mixed-effects models. RESULTS: Longitudinal PRO values did not differ between persons who received HCC exception points and those who did not have HCC. Patients with HCC who did not receive exception points had reduced physical HRQOL (P=.016), a late decline in mental HRQOL, and delayed reduction in anxiety (time-by-outcome interaction P<.050) compared to patients with HCC who received exception points. CONCLUSION: Transplant recipients who received HCC exception points had PROs that were comparable to those of patients without HCC, and reported better physical HRQOL and reduced symptoms of anxiety compared to patients with HCC who did not receive exception points. These analyses demonstrate the impact of HCC exception points on PROs, and may help inform policy regarding HCC exception point allocation.


Assuntos
Carcinoma Hepatocelular/diagnóstico , Doença Hepática Terminal/cirurgia , Neoplasias Hepáticas/diagnóstico , Transplante de Fígado , Medidas de Resultados Relatados pelo Paciente , Obtenção de Tecidos e Órgãos/métodos , Transplantados , Feminino , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Seleção de Pacientes , Qualidade de Vida , Estudos Retrospectivos , Fatores de Risco , Fatores de Tempo , Listas de Espera
4.
J Health Commun ; 20(7): 835-42, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-26073801

RESUMO

Most health literacy assessments are time consuming and administered verbally. Written self-administration of measures may facilitate more widespread assessment of health literacy. This study aimed to determine the intermethod reliability and concurrent validity of the written administration of the 3 subjective health literacy questions of the Short Literacy Survey (SLS). The Rapid Estimate of Adult Literacy in Medicine (REALM) and the shortened test of Functional Health Literacy in Adults (S-TOFHLA) were the reference measures of health literacy. Two hundred ninety-nine participants completed the written and verbal administrations of the SLS from June to December 2012. Intermethod reliability was demonstrated when (a) the written and verbal SLS score did not differ and (b) written and verbal scores were highly correlated. The written items were internally consistent (Cronbach's α = .733). The written total score successfully identified persons with sixth-grade equivalency or less for literacy on the REALM (AUROC = 0.753) and inadequate literacy on the S-TOFHLA (AUROC = 0. 869). The written administration of the SLS is reliable, valid, and is effective in identifying persons with limited health literacy.


Assuntos
Letramento em Saúde , Inquéritos e Questionários , Redação , Adulto , Idoso , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Reprodutibilidade dos Testes
5.
J Surg Res ; 187(1): 182-8, 2014 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-24555879

RESUMO

BACKGROUND: Peritoneal dialysis (PD) is a cost-effective alternative to hemodialysis (HD). PD catheters have traditionally been inserted through a small open incision, but insertion using laparoscopic visualization has become increasingly popular and is associated with less catheter malfunction. The aim of this study was to compare costs of laparoscopic and open insertion strategies while taking into account postoperative complications and future salvage procedures. METHODS: A decision analysis model was constructed to simulate 1 y outcomes after PD catheter insertion by either the open or laparoscopic approach. Possible outcomes after PD catheter placement included functional catheter, infection, and catheter malfunction. Ultimately, patients continued with successful PD or switched to HD. Baseline probabilities, costs, and ranges were determined from a critical review of the literature. Sensitivity analyses were performed to determine the model strength over a range of clinically relevant probabilities. RESULTS: The total annual costs, including postoperative management and dialysis treatment, were $69,491 for laparoscopic insertion and $69,960 for open insertion. In case of a catheter malfunction, an initial attempt at salvage by fluoroscopy-guided wire manipulation cost less than a first attempt by laparoscopic repositioning. CONCLUSIONS: When accounting for a year of postoperative management and treatment, laparoscopic insertion can be less costly than open insertion in the hands of an experienced surgeon. Despite higher initial costs, PD catheter insertion under laparoscopic visualization can have lower total costs due to fewer postoperative complications. With increasing emphasis on cost-effective care, laparoscopic insertion is a valuable tool for initiating PD.


Assuntos
Cateterismo/economia , Falência Renal Crônica/economia , Laparoscopia/economia , Avaliação de Processos e Resultados em Cuidados de Saúde , Diálise Peritoneal/economia , Cateterismo/efeitos adversos , Cateterismo/métodos , Análise Custo-Benefício , Árvores de Decisões , Falha de Equipamento , Feminino , Humanos , Falência Renal Crônica/terapia , Laparoscopia/efeitos adversos , Masculino , Pessoa de Meia-Idade , Diálise Peritoneal/efeitos adversos , Diálise Peritoneal/instrumentação , Complicações Pós-Operatórias/prevenção & controle
6.
Clin Transplant ; 27(2): 289-96, 2013.
Artigo em Inglês | MEDLINE | ID: mdl-23350938

RESUMO

Expansion of the donor pool with expanded criteria donors and donation after cardiac death (DCD) donors is essential. DCD grafts result in increased rates of primary non-function (PNF) and delayed graft function (DGF). However, long-term patient and graft survival is similar between donation after brain death (DBD) donors and DCD donors. The aim of this study was to evaluate the cost-effectiveness of the use of DCD donors. A Markov-based decision analytic model was created to simulate outcomes for two wait list strategies: (i) wait list composed of only DBD organs and (ii) wait list combining DBD and DCD organs. Baseline values and ranges were determined from the Scientific Registry of Transplant Recipients (SRTR) database and literature review. Sensitivity analyses were conducted to test model strength and parameter variability. The wait list strategy consisting of DBD donors only provided recipients 5.4 Quality-adjusted life years (QALYs) at $65 000/QALY, whereas a wait list strategy combining DBD + DCD donors provided recipients 6.0 QALYs at a cost of $56 000/QALY. Wait lists with DCD donors provide adequate long-term survival despite more DGF. This equates to an improvement in quality of life and decreased cost when compared to remaining on dialysis for any period of time.


Assuntos
Morte Encefálica , Morte , Função Retardada do Enxerto/etiologia , Seleção do Doador/métodos , Falência Renal Crônica/cirurgia , Transplante de Rim/economia , Doadores de Tecidos/provisão & distribuição , Análise Custo-Benefício , Técnicas de Apoio para a Decisão , Função Retardada do Enxerto/economia , Custos de Cuidados de Saúde , Humanos , Falência Renal Crônica/economia , Falência Renal Crônica/terapia , Cadeias de Markov , Modelos Econômicos , Anos de Vida Ajustados por Qualidade de Vida , Diálise Renal/economia , Estados Unidos , Listas de Espera
7.
Transpl Int ; 26(11): 1063-9, 2013 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-24118157

RESUMO

In an effort to quantify the impact of donor risk factors on recipient outcomes, the donor risk index (DRI) was developed. A high DRI correlates with poorer post-transplant survival. In this study, high-DRI donors are classified as those having DRIs >2.0, while low-DRI donors have DRIs <2.0. The aim of this study was to evaluate the cost-effectiveness of high-DRI donor use in US Transplant Centers. A Markov-based decision analytic model was created to simulate outcomes for an allocation scheme using only low-DRI donors versus a scheme using both low- and high-DRI donors. Baseline values and ranges were determined from published data and Medicare cost data. Sensitivity analyses were conducted to test model strength and parameter variability. An allocation scheme in which only low-DRI donors were used generated 5.2 quality-adjusted life years (QALYs) at a cost of $83 000/QALY. An allocation scheme using both low- and high-DRI donors generated 5.9 QALYs at a cost of $66 000/QALY. Sensitivity analyses supported the use of an allocation scheme using both low- and high-DRI donors. The overall contribution of high-DRI grafts to the donor pool and the resultant reduction in wait-list mortality make them cost-effective.


Assuntos
Transplante de Fígado/economia , Doadores de Tecidos , Obtenção de Tecidos e Órgãos/economia , Análise Custo-Benefício , Sobrevivência de Enxerto , Humanos , Transplante de Fígado/efeitos adversos , Cadeias de Markov , Anos de Vida Ajustados por Qualidade de Vida , Estados Unidos , Listas de Espera/mortalidade
8.
HPB (Oxford) ; 15(3): 182-9, 2013 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-23374358

RESUMO

OBJECTIVES: The aim of this study was to evaluate the cost-effectiveness in liver transplantation (LT) of utilizing organs donated after cardiac death (DCD) compared with organs donated after brain death (DBD). METHODS: A Markov-based decision analytic model was created to compare two LT waitlist strategies distinguished by organ type: (i) DBD organs only, and (ii) DBD and DCD organs. The model simulated outcomes for patients over 10 years with annual cycles through one of four health states: survival; ischaemic cholangiopathy; retransplantation, and death. Baseline values and ranges were determined from an extensive literature review. Sensitivity analyses tested model strength and parameter variability. RESULTS: Overall survival is decreased, and biliary complications and retransplantation are increased in recipients of DCD livers. Recipients of DBD livers gained 5.6 quality-adjusted life years (QALYs) at a cost of US$69 000/QALY, whereas recipients on the DBD + DCD LT waitlist gained 6.0 QALYs at a cost of US$61 000/QALY. The DBD + DCD organ strategy was superior to the DBD organ-only strategy. CONCLUSIONS: The extension of life and quality of life provided by DCD LT to patients on the waiting list who might otherwise not receive a liver transplant makes the continued use of DCD livers cost-effective.


Assuntos
Morte Encefálica , Custos de Cuidados de Saúde , Transplante de Fígado/economia , Transplante de Fígado/mortalidade , Complicações Pós-Operatórias/economia , Complicações Pós-Operatórias/mortalidade , Doadores de Tecidos/provisão & distribuição , Obtenção de Tecidos e Órgãos/economia , Listas de Espera/mortalidade , Análise Custo-Benefício , Técnicas de Apoio para a Decisão , Sobrevivência de Enxerto , Humanos , Transplante de Fígado/efeitos adversos , Cadeias de Markov , Método de Monte Carlo , Complicações Pós-Operatórias/cirurgia , Avaliação de Programas e Projetos de Saúde , Qualidade de Vida , Anos de Vida Ajustados por Qualidade de Vida , Reoperação/economia , Reoperação/mortalidade , Fatores de Tempo , Resultado do Tratamento
9.
HPB (Oxford) ; 15(4): 252-9, 2013 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-23458623

RESUMO

BACKGROUND: The reported effects of biliary injury on health-related quality of life (HRQOL) have varied widely. Meta-analysis methodology was applied to examine the collective findings of the long-term effect of bile duct injury (BDI) on HRQOL. METHODS: A comprehensive literature search was conducted in March, 2012. Because the HRQOL surveys differed among reports, BDI and uncomplicated laparoscopic cholecystectomy (LC) groups' HRQOL scores were expressed as effect sizes (ES) in relation to a common, general population, standard. A negative ES indicated a reduced HRQOL, with a substantive reduction defined as an ES ≤ -0.50. Weighted logistic regression tested the effects of BDI (versus LC) and follow-up time on whether physical and mental HRQOL were substantively reduced. RESULTS: Data were abstracted from six publications, which encompass all reports of HRQOL after BDI in the current, peer-reviewed literature. The analytic database comprised 90 ES computations representing 831 patients and 11 unique study groups (six BDI and five LC). After controlling for follow-up time (P ≤ 0.001), BDI patients were more likely to have reduced long-term mental [odds ratio (OR) = 38.42, 95% confidence interval (CI) = 19.14-77.10; P < 0.001] but not physical (P = 0.993) HRQOL compared with LC patients. DISCUSSION: This meta-analysis of findings from six peer-review reports indicates that, in comparison to LC, there is a long-term detrimental effect of BDI on mental HRQOL.


Assuntos
Doenças dos Ductos Biliares/cirurgia , Ductos Biliares/lesões , Colecistectomia Laparoscópica , Qualidade de Vida , Adulto , Colecistectomia Laparoscópica/efeitos adversos , Humanos , Fatores de Tempo , Resultado do Tratamento
10.
J Surg Res ; 177(1): 165-71, 2012 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-22608835

RESUMO

BACKGROUND: The Hemodialysis Reliable Outflow (HeRO) dialysis access device is a permanent tunneled dialysis graft connected to a central venous catheter and is used in patients with end-stage dialysis access (ESDA) issues secondary to central venous stenosis. The safety and effectiveness of the HeRO device has previously been proven, but no study thus far has compared the cost of its use with tunneled dialysis catheters (TDCs) and thigh grafts in patients with ESDA. MATERIALS AND METHODS: A decision analytic model was developed to simulate outcomes for patients with ESDA undergoing placement of a HeRO dialysis access device, TDC, or thigh graft. Outcomes of interest were infection, thrombosis, and ischemic events. Baseline values, ranges, and costs were determined from a systematic review of the literature. Total costs were based on 1 year of post-procedure outcomes. Sensitivity analyses were conducted to test model strength. RESULTS: The HeRO dialysis access device is the least costly dialysis access with an average 1-year cost of $6521. The 1-year cost for a TDC was $8477. A thigh graft accounted for $9567 in a 1-year time period. CONCLUSIONS: The HeRO dialysis access device is the least costly method of ESDA. The primary determinants of cost in this model are infection in TDCs and leg ischemia necessitating amputation in thigh grafts. Further study is necessary to incorporate patient preference and quality of life into the model.


Assuntos
Cateterismo Venoso Central/instrumentação , Cateteres de Demora/economia , Falência Renal Crônica/terapia , Diálise Renal/economia , Cateterismo Venoso Central/economia , Técnicas de Apoio para a Decisão , Humanos , Falência Renal Crônica/economia , Coxa da Perna
11.
J Surg Res ; 176(2): e89-94, 2012 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-22472697

RESUMO

BACKGROUND: Live donor kidney transplantation is the treatment of choice for end-stage renal disease. Open donor nephrectomy (ODN) was the standard until the introduction of the laparoscopic donor nephrectomy (LDN) in 1995. Hand-assisted laparoscopic donor nephrectomy (HALDN) was added shortly thereafter. The laparoscopic techniques are associated with increased operating room times and equipment costs; however, these techniques speed patient return to normal activity. The aim of this study is to evaluate the cost of these techniques. MATERIALS AND METHODS: A decision analysis model was developed to simulate outcomes for donors undergoing ODN, LDN, and HALDN. Outcomes were simulated from both the institutional perspective (IP) and the societal perspective (SP). Baseline values and ranges were determined from a systematic review of the literature. Sensitivity analyses were conducted to test model strength. RESULTS: From the IP, ODN is the least costly strategy with a cost of $11,000, while the cost is $15,200 for HALDN and $15,800 for LDN. From the SP, HALDN is the least costly strategy costing $27,800, while the cost for LDN is $29,000 and for ODN is $41,000. In sensitivity analysis, ODN only became the dominant strategy if the days till return to work exceeded 58 in the HALDN strategy. LDN and HALDN were nearly equivalent as the rate of open conversion of LDN approached zero. CONCLUSIONS: HALDN is the least costly donor nephrectomy strategy, especially from the SP. The primary determinants of cost in this model are conversion to open and days till return to work.


Assuntos
Falência Renal Crônica/economia , Falência Renal Crônica/cirurgia , Transplante de Rim/economia , Transplante de Rim/métodos , Doadores Vivos , Nefrectomia/economia , Adulto , Redução de Custos , Árvores de Decisões , Emprego/economia , Feminino , Gastos em Saúde , Custos Hospitalares , Humanos , Modelos Econométricos , Complicações Pós-Operatórias/economia , Licença Médica/economia
12.
Prog Transplant ; 22(4): 385-92, 2012 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-23187057

RESUMO

Approximately 10000 deceased donor organs are available yearly for 85 000 US patients awaiting kidney transplant. Living kidney donation is essential to close this gap and offers better survival rates. However, nationally, 80% of potential donors evaluated fail to donate. Nurse coordinators who perform predonation screening and education need additional insight into the large number of potential donors who fail to complete the donation process. Reasons for nondonation in donor candidates undergoing medical evaluation, and variables affecting nondonation at Vanderbilt University Medical Center between 2004 and 2009 are examined. Multivariable logistic regression models are used to test the effects of age and race on donation status and reasons for nondonation. Summary data are frequencies, percentages, and means (SD). The sample included 706 candidates (63% female, 80% white; mean age, 40 [SD, 12] years). Almost half (46%) received clearance to donate. Undiagnosed hypertension (14%), abnormal glucose tolerance (10%), and protein-urea (9%) were the most prevalent medical reasons for nondonation. About 13% of candidates changed their minds during evaluation. Analyses demonstrated an increased likelihood of older candidates (P < .001) and a decreased likelihood of white candidates (P = .007) being excluded from donation. Within the nondonation group, increased age was associated with undiagnosed hypertension and abnormal glucose tolerance (both race-adjusted, P = .01). Younger candidates (race-adjusted, P = .003) and African Americans (age-adjusted, P = .04) were more likely to decide against donation. The most prevalent medical reasons for nondonation could be identified through enhanced prescreening, and improved preevaluation education could decrease nondonation rates.


Assuntos
Transplante de Rim/psicologia , Doadores Vivos/psicologia , Adulto , Fatores Etários , Atitude Frente a Saúde , Distribuição de Qui-Quadrado , Feminino , Humanos , Transplante de Rim/etnologia , Funções Verossimilhança , Masculino , Estudos Retrospectivos , Fatores de Risco , Tennessee
13.
HPB (Oxford) ; 13(11): 783-91, 2011 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-21999591

RESUMO

OBJECTIVE: The optimal strategy for treating hepatocellular carcinoma (HCC), a disease with increasing incidence, in patients with Child-Pugh class A cirrhosis has long been debated. This study evaluated the cost-effectiveness of hepatic resection (HR) or locoregional therapy (LRT) followed by salvage orthotopic liver transplantation (SOLT) vs. that of primary orthotopic liver transplantation (POLT) for HCC within the Milan Criteria. METHODS: A Markov-based decision analytic model simulated outcomes, expressed in costs and quality-adjusted life years (QALYs), for the three treatment strategies. Baseline parameters were determined from a literature review. Sensitivity analyses tested model strength and parameter variability. RESULTS: Both HR and LRT followed by SOLT were associated with earlier recurrence, decreased survival, increased costs and decreased quality of life (QoL), whereas POLT resulted in decreased recurrence, increased survival, decreased costs and increased QoL. Specifically, HR/SOLT yielded 3.1 QALYs (at US$96 000/QALY) and LRT/SOLT yielded 3.9 QALYs (at US$74 000/QALY), whereas POLT yielded 5.5 QALYs (at US$52 000/QALY). Sensitivity analyses supported these findings at clinically meaningful probabilities. CONCLUSIONS: Under the Model for End-stage Liver Disease (MELD) system, in patients with HCC within the Milan Criteria, POLT increases survival and QoL at decreased costs compared with HR or LRT followed by SOLT. Therefore, POLT is the most cost-effective strategy for the treatment of HCC.


Assuntos
Carcinoma Hepatocelular/economia , Carcinoma Hepatocelular/cirurgia , Ablação por Cateter/economia , Custos de Cuidados de Saúde , Hepatectomia/economia , Neoplasias Hepáticas/economia , Neoplasias Hepáticas/cirurgia , Transplante de Fígado/economia , Terapia de Salvação/economia , Carcinoma Hepatocelular/diagnóstico , Carcinoma Hepatocelular/mortalidade , Carcinoma Hepatocelular/patologia , Ablação por Cateter/efeitos adversos , Ablação por Cateter/mortalidade , Simulação por Computador , Técnicas de Apoio para a Decisão , Árvores de Decisões , Hepatectomia/efeitos adversos , Hepatectomia/mortalidade , Humanos , Neoplasias Hepáticas/diagnóstico , Neoplasias Hepáticas/mortalidade , Neoplasias Hepáticas/patologia , Transplante de Fígado/efeitos adversos , Transplante de Fígado/mortalidade , Cadeias de Markov , Modelos Econômicos , Recidiva Local de Neoplasia , Seleção de Pacientes , Anos de Vida Ajustados por Qualidade de Vida , Terapia de Salvação/efeitos adversos , Terapia de Salvação/mortalidade , Taxa de Sobrevida , Fatores de Tempo , Resultado do Tratamento
14.
Arch Surg ; 140(3): 273-7, 2005 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-15781792

RESUMO

HYPOTHESIS: Donor, technical, and recipient risk factors cumulatively impact survival and health-related quality of life after liver transplantation. DESIGN: Retrospective study. SETTING: Tertiary care center. PATIENTS: A total of 483 adults undergoing primary orthotopic liver transplantation between January 1, 1991, and July 31, 2003. MAIN OUTCOME MEASURES: Graft and patient survival, Karnofsky functional performance scores, Medical Outcomes Study Short Form 36 Health Survey scores, and Psychosocial Adjustment to Illness Scale scores as influenced by potential risk factors including donor age, weight, warm ischemia time, cold ischemia time (CIT), sex, United Network for Organ Sharing (UNOS) status (1 or 2A vs 2B or 3), recipient age and disease, bilirubin level, and creatinine level. RESULTS: Five-year graft survival was 72% for recipients of donors younger than 60 years and 35% for recipients of donors 60 years and older (P<.001). A CIT of 12 hours or more was associated with shorter 5-year graft survival (71% vs 58%; P = .004). Five-year graft survival for UNOS status 2B or 3 was 71% vs 60% for status 1 or 2A (P = .02). A comparable pattern was seen for patient survival in relation to donor age (P = .003), CIT (P = .005), and urgency status (P = .03). Urgent UNOS status, advanced donor age, and prolonged CIT were independently associated with shorter graft and patient survival (P<.05). Functional performance and health-related quality of life were not affected by donor, recipient, or technical characteristics. CONCLUSIONS: Combining advanced donor age, urgent status, and prolonged CIT adversely affects graft and patient survival, and the cumulative effects of these risk factors can be modeled to predict posttransplant survival.


Assuntos
Transplante de Fígado , Qualidade de Vida , Doadores de Tecidos , Adulto , Fatores Etários , Cadáver , Feminino , Sobrevivência de Enxerto , Humanos , Transplante de Fígado/mortalidade , Masculino , Pessoa de Meia-Idade , Preservação de Órgãos , Modelos de Riscos Proporcionais , Estudos Retrospectivos , Fatores de Risco
15.
J Am Coll Surg ; 200(2): 160-5, 2005 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-15664088

RESUMO

BACKGROUND: In the evaluation of the cervical spine (c-spine), helical CT scan has higher sensitivity and specificity than plain radiographs in the moderate- and high-risk trauma population, but is more costly. We hypothesize that institutional costs associated with missed injuries make helical CT scan the least costly approach. STUDY DESIGN: A cost-minimization study was performed using decision analysis examining helical CT scan versus radiographic evaluation of the c-spine. Parameter estimates were obtained from the literature for probability of c-spine injury, probability of paralysis after missed injury, plain film sensitivity and specificity, CT scan sensitivity and specificity, and settlement cost of missed injuries resulting in paralysis. Institutional costs of CT scan and plain radiography were used. Sensitivity analyses tested robustness of strategy preference, accounted for parameter variability, and determined threshold values for individual parameters on strategy preference. RESULTS: C-spine evaluation with helical CT scan has an expected cost of US 554 dollars per patient compared with US 2,142 dollars for plain films. CT scan is the least costly alternative if threshold values exceed US 58,180 dollars for institutional settlement costs, 0.9% for probability of c-spine fracture, and 1.7% for probability of paralysis. Plain films are least costly if CT scan costs surpass US 1,918 dollars or plain film sensitivity exceeds 90%. CONCLUSIONS: Helical CT scan is the preferred initial screening test for detection of cervical spine fractures among moderate- to high-risk patients seen in urban trauma centers, reducing the incidence of paralysis resulting from false-negative imaging studies and institutional costs, when settlement costs are taken into account.


Assuntos
Vértebras Cervicais/diagnóstico por imagem , Vértebras Cervicais/lesões , Custos Hospitalares , Fraturas da Coluna Vertebral/diagnóstico por imagem , Fraturas da Coluna Vertebral/economia , Tomografia Computadorizada Espiral/economia , Centros de Traumatologia/economia , Redução de Custos , Análise Custo-Benefício , Árvores de Decisões , Erros de Diagnóstico/economia , Hospitais Urbanos/economia , Humanos , Responsabilidade Legal/economia , Paralisia/economia , Paralisia/etiologia , Radiografia/economia , Sensibilidade e Especificidade , Fraturas da Coluna Vertebral/complicações
16.
Arch Surg ; 139(5): 476-81; discussion 481-2, 2004 May.
Artigo em Inglês | MEDLINE | ID: mdl-15136346

RESUMO

HYPOTHESIS: Long-term quality of life (QOL) in patients undergoing laparoscopic cholecystectomy (LC) incurring bile duct injury (BDI) and repair is comparable to that of patients undergoing uncomplicated LC. DESIGN: Case comparison study. SETTING: Secondary and tertiary care centers. PATIENTS: Eighty-six patients incurring BDI during LC between January 1, 1991, and July 31, 2003, were surveyed. Comparison subjects underwent uncomplicated LC during the same period. MAIN OUTCOME MEASURES: Health-related QOL as assessed by the Karnofsky Performance Scale, Medical Outcomes Study 36-Item Short Form Health Survey (SF-36), and Psychosocial Adjustment to Illness Scale. RESULTS: Fifty patients with BDI (39 [78%] female; mean +/- SEM age, 55 +/- 2 years) and 74 patients with uncomplicated LC (51 [69%] female, mean +/- SEM age, 52 +/- 2 years) responded. Of the 50 BDI patients, 48 (96%) had no stricture and normal liver function at QOL assessment. The mean +/- SEM follow-up period to QOL assessment for the BDI and uncomplicated LC groups was 62 +/- 6 and 47 +/- 3 months, respectively. The mean +/- SD Karnofsky Performance Scale scores were 77 +/- 9 vs 93 +/- 8 for the 2 groups, respectively (P <.001). The mean +/- SD SF-36 physical component scale scores after BDI vs uncomplicated LC were 36 +/- 11 vs 47 +/- 12, respectively (P <.001), compared with 50 +/- 10 for the normal population (P <.001). The mean +/- SD SF-36 mental component scale scores were 43 +/- 14 vs 49 +/- 11 for the 2 groups, respectively (P =.02), compared with 50 +/- 10 for the normal population (P =.01). Patients with BDI scored poorer on the Psychosocial Adjustment to Illness Scale health care orientation and domestic environment scales (P=.01). CONCLUSION: After BDI and repair, there are long-term detrimental effects of BDI on health-related QOL.


Assuntos
Ductos Biliares Extra-Hepáticos/lesões , Colecistectomia Laparoscópica/efeitos adversos , Qualidade de Vida , Ductos Biliares Extra-Hepáticos/cirurgia , Estudos de Casos e Controles , Feminino , Indicadores Básicos de Saúde , Humanos , Complicações Intraoperatórias , Masculino , Pessoa de Meia-Idade , Ajustamento Social , Resultado do Tratamento
17.
Am J Surg ; 188(5): 571-4, 2004 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-15546572

RESUMO

BACKGROUND: We sought to determine if disparities in survival and health-related quality of life (HRQOL) occurred after solid organ transplantation at our institution. METHODS: Data were extracted from a database including information regarding transplants that took place from 1990 to 2002. The HRQOL was assessed in patients by using the Karnofsky functional performance (FP) index and the Medical Outcomes Study Short Form 36 (SF-36) questionnaire. RESULTS: Data were collected on recipients of liver (n = 413), heart (n = 299), kidney (n = 892), and lung (n = 156). Blacks represented a minority of recipients: liver 7%, heart 8%, kidney 23%, and lung 6%. There were no statistically significant differences in patient survival between blacks and whites. Graft survival differed in kidney only with a 5-year survival: 72% for blacks versus 79% for whites (P <0.001). The FP and HRQOL improved (P <0.05) after transplantation in both groups. There were no differences on measures of the FP or HRQOL. CONCLUSIONS: Blacks had comparable survival and improvement in FP and HRQOL in comparison with whites.


Assuntos
População Negra/estatística & dados numéricos , Rejeição de Enxerto/etnologia , Transplante de Órgãos/etnologia , Qualidade de Vida , População Branca/estatística & dados numéricos , Adulto , Feminino , Sobrevivência de Enxerto , Transplante de Coração/etnologia , Transplante de Coração/mortalidade , Transplante de Coração/normas , Humanos , Transplante de Rim/etnologia , Transplante de Rim/mortalidade , Transplante de Rim/normas , Transplante de Fígado/etnologia , Transplante de Fígado/mortalidade , Transplante de Fígado/normas , Transplante de Pulmão/etnologia , Transplante de Pulmão/mortalidade , Transplante de Pulmão/normas , Masculino , Pessoa de Meia-Idade , Transplante de Órgãos/mortalidade , Transplante de Órgãos/normas , Sistema de Registros , Estudos Retrospectivos , Taxa de Sobrevida , Resultado do Tratamento , Estados Unidos
18.
Transplantation ; 98(1): 88-93, 2014 Jul 15.
Artigo em Inglês | MEDLINE | ID: mdl-24573114

RESUMO

BACKGROUND: Health literacy (HL) may be a mediator for known socioeconomic and racial disparities in living kidney donation. METHODS: We evaluated the associations of patient and demographic characteristics with HL in living kidney donors (LD), living donor kidney transplant recipients (LDR), and deceased donor recipients (DDR) in a single-center retrospective review of patients undergoing kidney donation or transplantation from September 2010 to July 2012. HL and demographic data were collected. HL was assessed via the Short Literacy Survey (SLS) comprising three self-reported screening questions scored using the five-point Likert scale (low, moderate, high). Chi-square and logistic regression were used to test factors associated with lower HL. RESULTS: The sample included 360 adults (105 LD, 103 LDR, and 152 DDR; 46±14 years; 70% white; 56% male; 14±3 years of education). HL scores were skewed (49% high, 41% moderate, and 10% low). The distribution of HL categories differed significantly among groups (P=0.019). After controlling for age, race, sex, education, and a race-education interaction term, DDR was more likely to have moderate or low HL than LDR (OR, 1.911; 95% CI, 1.096-3.332; P=0.022). CONCLUSION: Overall, living donors had high HL. The distribution of low, moderate, and high HL differed significantly between LD, DDR, and LDR. DDR had a higher likelihood of having low HL than LDR. Screening kidney transplant candidates and donors for lower HL may identify barriers to living donation. Future interventions addressing HL may be important to increase living donation and reduce disparities.


Assuntos
Conhecimentos, Atitudes e Prática em Saúde , Letramento em Saúde , Transplante de Rim/psicologia , Doadores Vivos/psicologia , Pacientes/psicologia , Adulto , Distribuição de Qui-Quadrado , Feminino , Disparidades em Assistência à Saúde , Humanos , Modelos Logísticos , Masculino , Pessoa de Meia-Idade , Razão de Chances , Estudos Retrospectivos , Fatores Socioeconômicos , Inquéritos e Questionários , Tennessee
19.
J Am Coll Surg ; 214(2): 164-73, 2012 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-22137824

RESUMO

BACKGROUND: Corticosteroid use during post-transplant immunosuppression contributes to documented long-term complications in liver transplant recipients. However, the effects of steroids on post-transplant physical and mental health-related quality of life (HRQOL) have not been established. We aimed to test the association between steroid-based immunosuppression and post-transplant HRQOL in liver transplant recipients. STUDY DESIGN: We performed a retrospective analysis of prospective, longitudinal HRQOL measured using the Short Form 36 Health Survey physical and mental component summary scores, Beck Anxiety Inventory, and Center for Epidemiologic Studies Depression Scale. Steroid use (none, low [<10 mg/d], high [≥10 mg/d]) and temporally associated acute rejection (within previous 6 weeks, previous 7 to 12 weeks, and never or >12 weeks before HRQOL measurement) were determined at every post-transplant HRQOL data point. Linear mixed-effects models tested the effects of contemporaneous steroid use and dosing on post-transplant HRQOL. RESULTS: The sample included 186 adult liver transplant recipients (mean age 54 ± 8 years, 70% male) with pre- and at least 1 post-transplant HRQOL data point. Individual follow-up post-transplant averaged 21 ± 18 months (range 1 to 74 months). After controlling for pre-transplant HRQOL, time post-transplant, pre-transplant diagnosis group, and temporally associated episodes of rejection, post-transplant high-dose steroid use (≥10 mg/d) was associated with lower physical component summary (p < 0.001) and mental component summary (p = 0.049) scores and increased Beck Anxiety Inventory (p = 0.015) scores. Low-dose steroid use (<10 mg/d) was not associated with post-transplant HRQOL in any model (all p ≥ 0.28). CONCLUSIONS: High-dose steroid use for post-transplant immunosuppression in liver transplant recipients was associated with reduced physical and mental HRQOL, and increased symptoms of anxiety. There was an association between better HRQOL and steroid reduction to <10 mg/d in liver transplant recipients during a broad follow-up period.


Assuntos
Glucocorticoides/administração & dosagem , Rejeição de Enxerto/prevenção & controle , Imunossupressores/administração & dosagem , Transplante de Fígado , Qualidade de Vida , Feminino , Indicadores Básicos de Saúde , Humanos , Transplante de Fígado/imunologia , Masculino , Pessoa de Meia-Idade , Cuidados Pós-Operatórios , Período Pós-Operatório , Pulsoterapia
20.
J Am Coll Surg ; 214(6): 919-27, 2012 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-22495064

RESUMO

BACKGROUND: Controversy exists regarding the optimal timing of repair after iatrogenic bile duct injuries (BDI). Several studies advocate late repair (≥6 weeks after injury) with mandatory drainage and resolution of inflammation. Others indicate that early repair (<6 weeks after injury) produces comparable or superior clinical outcomes. Additionally, although most studies have reported inferior outcomes with primary surgeon repair, this practice continues. With disparate published recommendations and rising health care costs, decision analysis was used to examine the cost-effectiveness of BDI repair. STUDY DESIGN: A Markov model was developed to evaluate primary surgeon repair (PSR), late repair by a hepatobiliary surgeon (LHBS), and early repair by a hepatobiliary surgeon (EHBS). Baseline values and ranges were collected from the literature. Sensitivity analsyses were conducted to test the strength of the model and variability of parameters. RESULTS: The model demonstrated that EHBS was associated with lower costs, earlier return to normal activity, and better quality of life. Specifically, 1 year after repair, PSR yielded 0.53 quality adjusted life years (QALYs) ($120,000/QALY) and LHBS yielded 0.74 QALYs ($74,000/QALY); EHBS yielded 0.82 QALYs ($48,000/QALY). Sensitivity analyses supported these findings at clinically meaningful probabilities. CONCLUSIONS: This cost-effectiveness model demonstrates that early repair by a hepatobiliary surgeon is the superior strategy for the treatment of BDI in properly selected patients. Although there is little clinical difference between early and late repair, there is a great difference in cost and quality of life. Ideally, costs and quality of life should be considered in decisions regarding strategies of repair of injured bile ducts.


Assuntos
Doenças dos Ductos Biliares/cirurgia , Ductos Biliares/lesões , Procedimentos Cirúrgicos do Sistema Biliar/economia , Custos de Cuidados de Saúde/estatística & dados numéricos , Doença Iatrogênica/economia , Modelos Econômicos , Procedimentos de Cirurgia Plástica/economia , Doenças dos Ductos Biliares/economia , Doenças dos Ductos Biliares/etiologia , Ductos Biliares/cirurgia , Procedimentos Cirúrgicos do Sistema Biliar/métodos , Análise Custo-Benefício , Humanos , Complicações Pós-Operatórias , Qualidade de Vida , Anos de Vida Ajustados por Qualidade de Vida , Procedimentos de Cirurgia Plástica/métodos , Fatores de Tempo , Resultado do Tratamento
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA