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1.
J Surg Res ; 283: 205-216, 2023 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-36410237

RESUMO

INTRODUCTION: Esophageal cancer therapy is commonly multimodal. The CROSS trial demonstrated a survival benefit of neoadjuvant chemoradiation versus surgery alone in T1N1 or T2-3N0-1 patients. Theoretically, chemoradiation should be most beneficial to patients with advanced disease. Treating the intermediary stage, T2N0M0, is challenging as national guidelines offer multiple options. This study aims to compare survival outcomes and associated factors in clinical T2N0M0 esophageal cancer via treatment modality and compare clinical to pathological stage. The authors conclude that neoadjuvant therapy use has increased; however, there is no associated survival benefit, which may be due to over- or under-staging. METHODS: A retrospective study was performed using the National Cancer Database (2006-2016). Patients who underwent neoadjuvant chemoradiation followed by surgery (NCRT + ESOPH) were compared to patients who underwent esophagectomy first (ESOPH). Multivariable logistic regression was used to determine factors associated with treatment pathway. Overall survival was compared using Kaplan-Meier estimates and log-rank tests at 1-, 3-, and 5-y post-treatment. Additionally, a multiple logistic regression analysis was conducted to identify factors associated with adjuvant therapy in ESOPH patients. RESULTS: There were 1662 patients (NCRT + ESOPH: 904 [54.4%], ESOPH: 758 [45.6%]). There was no difference in 5-y survival between NCRT + ESOPH and ESOPH patients. Despite this, NCRT + ESOPH treatment rates rose from 33% to 74% between 2006 and 2016. Patients who received NCRT + ESOPH were younger and more commonly had no Charlson-Deyo comorbidities. Notably, 41% of patients were over-staged (T1 or lower), and 32.8% were under-staged (N ≥ 1). CONCLUSIONS: T2N0M0 remains difficult to characterize, and pathological staging corresponds poorly to clinical staging. Neoadjuvant therapy use has increased; however, the lack of a significant survival benefit to correlate with such may be secondary to over- or under-staging.


Assuntos
Neoplasias Esofágicas , Humanos , Estudos Retrospectivos , Estadiamento de Neoplasias , Neoplasias Esofágicas/patologia , Terapia Combinada , Terapia Neoadjuvante , Esofagectomia , Resultado do Tratamento , Taxa de Sobrevida , Quimiorradioterapia Adjuvante
2.
J Surg Res ; 286: 65-73, 2023 06.
Artigo em Inglês | MEDLINE | ID: mdl-36758322

RESUMO

INTRODUCTION: Oncotype Dx (ODX) is a genetic assay that analyzes tumor recurrence risk and provides chemotherapy recommendations for T1-T2 stage, hormone receptor-positive, human epidermal growth factor receptor-negative, and nodal-negative breast cancer patients. Despite its established validity, the utilization of this assay is suboptimal. The study aims to evaluate factors that are associated with adherence rate with the testing guidelines and examine changes in utilization trends. METHODS: This is a retrospective study, utilizing data from the National Cancer Database from 2010 to 2017. Patients who met the ODX testing guidelines were first evaluated for testing adherence. Secondly, all patients who underwent ODX testing were assessed to evaluate the trend in ODX utilization. RESULTS: A total of 429,648 patients met the criteria for ODX, and 43.4% of this population underwent testing. Advanced age, racial minorities, low-income status, well-differentiated tumor grade, uninsured status, and treatment at community cancer centers were associated with a decreased likelihood of receiving ODX in eligible patients. Additionally, a notable amount of testing was performed on patients who did not meet the ODX testing criteria. Among the 295,326 patients that underwent ODX testing, 16.6% of patients were node-positive and 1.8% had T3 or T4 stage tumors. CONCLUSIONS: A considerable number of patients who were eligible for ODX did not receive it, indicating potential barriers to care and disparities in breast cancer treatment. ODX usage has been expanded to broader patient populations, indicating more research is needed to validate the effectiveness of the assay in these patient groups.


Assuntos
Neoplasias da Mama , Recidiva Local de Neoplasia , Humanos , Feminino , Estudos Retrospectivos , Recidiva Local de Neoplasia/diagnóstico , Recidiva Local de Neoplasia/genética , Recidiva Local de Neoplasia/metabolismo , Neoplasias da Mama/diagnóstico , Neoplasias da Mama/genética , Neoplasias da Mama/terapia , Receptores ErbB/genética , Bases de Dados Factuais , Perfilação da Expressão Gênica , Prognóstico
3.
Ann Surg Oncol ; 24(6): 1459-1464, 2017 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-28168388

RESUMO

PURPOSE: Survival nomograms offer individualized predictions using a more diverse set of factors than traditional staging measures, including the American Joint Committee on Cancer Tumor Node Metastasis (AJCC TNM) Staging System. A nomogram predicting overall survival (OS) for resected, non-metastatic non-small cell lung cancer (NSCLC) has been previously derived from Asian patients. The present study aims to determine the nomogram's predictive capability in the US using the National Cancer Database (NCDB). METHODS: This was a retrospective review of adults with resected, non-metastatic NSCLC entered into the NCDB between 2004 and 2012. Concordance indices and calibration plots analyzed discrimination and calibration, respectively. Multivariate analysis was also used. RESULTS: A total of 57,313 patients were included in this study. The predominant histologies were adenocarcinoma (48.2%) and squamous cell carcinoma (31.3%), and patients were diagnosed with stage I-A (38.3%), stage I-B (22.7%), stage II-A (14.2%), stage II-B (11.5%), and stage III-A (13.3%). Median OS was 74 months. 1-, 3- and 5-year OS rates were 89.8% [95% confidence interval (CI) 89.5-90.0%], 71.1% (95% CI 70.7-71.6%), and 55.7% (95% CI 54.7-56.6%), respectively. The nomogram's concordance index (C-index) was 0.804 (95% CI 0.792-0.817). AJCC TNM staging demonstrated higher discrimination (C-index 0.833, 95% CI 0.821-0.840). CONCLUSIONS: The nomogram's individualized estimates accurately predicted survival in this patient collective, demonstrating higher discrimination in this population than in the developer's cohorts. However, the generalized survival estimates provided by traditional staging demonstrated superior predictive capability; therefore, AJCC TNM staging should remain the gold standard for the prognostication of resected NSCLC in the US.


Assuntos
Adenocarcinoma/mortalidade , Carcinoma de Células Grandes/mortalidade , Carcinoma Pulmonar de Células não Pequenas/mortalidade , Carcinoma de Células Escamosas/mortalidade , Bases de Dados Factuais , Neoplasias Pulmonares/mortalidade , Nomogramas , Adenocarcinoma/patologia , Adenocarcinoma/terapia , Idoso , Carcinoma de Células Grandes/patologia , Carcinoma de Células Grandes/terapia , Carcinoma Pulmonar de Células não Pequenas/patologia , Carcinoma Pulmonar de Células não Pequenas/terapia , Carcinoma de Células Escamosas/patologia , Carcinoma de Células Escamosas/terapia , Terapia Combinada , Feminino , Seguimentos , Humanos , Neoplasias Pulmonares/patologia , Neoplasias Pulmonares/terapia , Masculino , Pessoa de Meia-Idade , Prognóstico , Estudos Prospectivos , Estudos Retrospectivos , Taxa de Sobrevida
4.
JSLS ; 16(1): 45-9, 2012.
Artigo em Inglês | MEDLINE | ID: mdl-22906329

RESUMO

OBJECTIVES: Laparoscopic adrenalectomy has become the standard of care for resection of adrenal masses, with extremely low morbidity and mortality. This study investigates the difference in outcomes in patients who underwent laparoscopic adrenalectomy, comparing obese with healthy weight patients. METHODS: A retrospective chart review was performed on patients undergoing laparoscopic adrenalectomy between January 2000 and February 2010. Intraoperative and postoperative complications in the patients were compared. A patient with a body mass index >30kg/m(2) was considered obese. RESULTS: Eighty patients underwent laparoscopic adrenalectomy between January 2000 and February 2010. Forty-nine patients (61%) were considered obese based on the body mass index criteria. Operative time, estimated blood loss, and length of stay did not differ significantly between the 2 cohort groups. There was no 30-day mortality in the population. There were 9 complications in the obese population and no complications in the healthy weight population (P<.011). Four obese patients had intraoperative complications, and 5 obese patients had postoperative morbidity. CONCLUSIONS: A significant increase occurred in intraoperative and postoperative complications for obese individuals undergoing laparoscopic adrenalectomy compared with healthy weight individuals. However, high body mass index should not preclude elective laparoscopic adrenalectomy.


Assuntos
Neoplasias das Glândulas Suprarrenais/epidemiologia , Adrenalectomia/efeitos adversos , Adrenalectomia/métodos , Angiomiolipoma/epidemiologia , Complicações Intraoperatórias/epidemiologia , Obesidade/epidemiologia , Feocromocitoma/epidemiologia , Neoplasias das Glândulas Suprarrenais/cirurgia , Adulto , Idoso , Angiomiolipoma/cirurgia , Índice de Massa Corporal , Comorbidade , Feminino , Humanos , Laparoscopia , Tempo de Internação , Masculino , Pessoa de Meia-Idade , Feocromocitoma/cirurgia , Complicações Pós-Operatórias/epidemiologia
5.
Am Surg ; 87(3): 396-403, 2021 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-32993353

RESUMO

BACKGROUND: The mainstay of treatment for pancreatic cancer is surgical resection; however, positive surgical margins remain commonplace. We identified hospitals with higher than predicted rates of positive margins and isolated factors that caused this discordance. METHODS: This is a retrospective review of patients with head of the pancreas adenocarcinoma in the National Cancer Database between 2004 and 2015. A nomogram was used to calculate the observed to expected positive margin rates (O/E) for facilities. If the O/E differed significantly (P < .05), it was considered an outlier. RESULTS: Among a total of 19 968 patients, 24.3% had positive margins. Among hospitals with lower than expected positive margin rates, 73.6% were academic or research programs, 17% were comprehensive community cancer programs, and none were community cancer programs (P = .0002). Within the group with higher than expected positive margin rates, 47% were comprehensive community cancer programs and 38.6% were academic or research programs (P = .0002). The mean hospital volume was higher in the low positive margin group (110.4 vs 48.8, P < .0001). CONCLUSIONS: Facility type and hospital volume can predict improvement in the O/E ratio for margin positivity in pancreatic adenocarcinoma resection. Surgeons should consider referral to academic or research facilities with higher case volumes for improved surgical resection.


Assuntos
Adenocarcinoma/cirurgia , Hospitais com Alto Volume de Atendimentos/normas , Hospitais com Baixo Volume de Atendimentos/normas , Margens de Excisão , Neoplasias Pancreáticas/cirurgia , Pancreaticoduodenectomia/normas , Melhoria de Qualidade , Adenocarcinoma/mortalidade , Adenocarcinoma/patologia , Adulto , Idoso , Idoso de 80 Anos ou mais , Bases de Dados Factuais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Nomogramas , Neoplasias Pancreáticas/mortalidade , Neoplasias Pancreáticas/patologia , Garantia da Qualidade dos Cuidados de Saúde , Estudos Retrospectivos , Análise de Sobrevida , Estados Unidos/epidemiologia
6.
Am J Surg ; 219(1): 129-135, 2020 01.
Artigo em Inglês | MEDLINE | ID: mdl-31262435

RESUMO

BACKGROUND: Multimodal therapy is beneficial in gastric cancer, however this practice is not universal. This study examines trends, identifies associative factors, and examines overall survival (OS) benefit from multimodal therapy in gastric cancer. METHODS: Gastric cancer patients staged IB-III from 2005 to 2014, identified using the National Cancer Database, were categorized by treatment: surgery alone, perioperative chemotherapy, and adjuvant chemoradiation. Groups were analyzed to identify associative factors of perioperative therapy. RESULTS: We examined 9243 patients, with the majority receiving multimodal therapy (57%). The proportion of those receiving perioperative chemotherapy rose dramatically from 7.5% in 2006 to 46% in 2013. Academic center treatment was strongly associated with perioperative over adjuvant therapy (p < 0.0001). An OS advantage was clearly seen in those receiving multimodal therapy versus surgery alone (p < 0.0001), with no difference between perioperative and adjuvant therapies. CONCLUSIONS: Treatment of gastric cancer with multimodal therapy has risen significantly since 2005, largely due to increasing use of perioperative chemotherapy. As perioperative therapy becomes more prevalent, more patients will have the opportunity for the improved survival benefit of multimodal therapy.


Assuntos
Neoplasias Gástricas/mortalidade , Neoplasias Gástricas/terapia , Adolescente , Adulto , Idoso , Antineoplásicos/uso terapêutico , Quimiorradioterapia Adjuvante , Terapia Combinada/tendências , Bases de Dados Factuais , Feminino , Gastrectomia , Humanos , Masculino , Pessoa de Meia-Idade , Período Pré-Operatório , Estudos Retrospectivos , Taxa de Sobrevida , Adulto Jovem
7.
Clin Cancer Res ; 14(1): 270-80, 2008 Jan 01.
Artigo em Inglês | MEDLINE | ID: mdl-18172279

RESUMO

PURPOSE: Over the past 60 years, cytotoxic chemotherapy has targeted the cancer cell. Despite this, there have been few cancer cures. A new approach to cancer therapy is to target the multicellular biological entity of the tumor microenvironment. EXPERIMENTAL DESIGN: Lenalidomide, an immunomodulatory drug, sunitinib, a tyrosine kinase inhibitor, and low-dose metronomic cyclophosphamide, were tested alone and in combination for their abilities to inhibit endothelial cell tube formation, rat aortic ring outgrowth, tumor growth, and metastatic development in mice. In addition, ectopic tumor lysates were evaluated for the presence of proangiogenic proteins. RESULTS: The three agents alone were shown to significantly inhibit endothelial cells' ability to form tubes and significantly inhibit the multicellular microenvironment in the rat aortic ring assay (P < 0.01 and P < 0.001). This effect was also significantly augmented when the agents were combined. Furthermore, the three-drug combination was able halt the progression of tumor growth almost completely in xenograft models of ocular melanoma, colon cancer, pancreatic cancer, and cutaneous melanoma. These agents significantly decrease the number of proliferating cells in tumors, significantly increase the number of cells undergoing active cell death in tumors, and significantly decrease the number of blood vessels in treated tumors (P < 0.05). Combination therapy shows a decrease in the compensatory up-regulation of proangiogenic proteins after treatment when compared with single-agent therapy. CONCLUSIONS: This combination of agents causes an inhospitable microenvironment for tumor cells and shows great promise for use in the clinic.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Proliferação de Células/efeitos dos fármacos , Neoplasias Experimentais/tratamento farmacológico , Neovascularização Patológica/tratamento farmacológico , Animais , Linhagem Celular Tumoral , Ciclofosfamida/administração & dosagem , Células Endoteliais/efeitos dos fármacos , Feminino , Imunofluorescência , Humanos , Indóis/administração & dosagem , Lenalidomida , Camundongos , Neoplasias Experimentais/irrigação sanguínea , Pirróis/administração & dosagem , Ratos , Sunitinibe , Talidomida/administração & dosagem , Talidomida/análogos & derivados , Ensaios Antitumorais Modelo de Xenoenxerto
8.
J Robot Surg ; 13(1): 69-75, 2019 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-29696591

RESUMO

BACKGROUND: Laparoscopic adrenalectomy (LA) has become the standard treatment of adrenal lesions. Recently, robotic-assisted adrenalectomy (RA) has become an option, however, short-term outcomes for RA have not been well studied and benefits over LA are debatable. The aim of this study was to explore differences in short-term outcomes between LA and RA using the national inpatient sample (NIS) database. METHODS: Patient data were collected from the NIS. All patients undergoing LA or RA from January 2009 to December 2012 were included. Univariate analysis and propensity matching were performed to look for differences between the groups. RESULTS: A total of 1006 patients (66.4% in LA group and 33.6% in RA group) were identified. Patient age group, gender, race, risk of mortality, severity of illness or indication for adrenalectomy did not differ significantly between the LA or RA cohorts. Insurance type predicted procedure type (45% of medicare patients underwent RA versus 29% of patients with private insurance, p < 0.0001). Patients living in the highest income areas were more likely to receive the laparoscopic approach (31.7 versus 17.4%, p < 0.0001). Hospital volume, bed size and teaching status of the hospital were not significant factors in the decision of RA versus LA. There was no difference in complication and conversion rates between RA versus LA. The mean length of stay was shorter in the RA group (2.2 versus 1.9 days, p = 0.03). Total charges were higher in the RA group ($42,659 versus $33,748, p < 0.0001). There was a significant trend towards more adrenalectomies being performed robotic assisted by year. Only 22% of adrenalectomies were performed robotic-assisted in 2009 compared with 48% in 2012. CONCLUSIONS: The overall benefit for RA remains small and higher total charges for RA may currently outweigh the benefits. These findings may change as more cases are performed robotically assisted and robotic technology improves.


Assuntos
Adrenalectomia/métodos , Adrenalectomia/estatística & dados numéricos , Bases de Dados como Assunto , Pacientes Internados , Laparoscopia/métodos , Laparoscopia/estatística & dados numéricos , Procedimentos Cirúrgicos Robóticos/métodos , Procedimentos Cirúrgicos Robóticos/estatística & dados numéricos , Adolescente , Adrenalectomia/economia , Adulto , Idoso , Idoso de 80 Anos ou mais , Análise de Variância , Humanos , Laparoscopia/economia , Pessoa de Meia-Idade , Pontuação de Propensão , Procedimentos Cirúrgicos Robóticos/economia , Fatores de Tempo , Resultado do Tratamento , Adulto Jovem
9.
Am Surg ; 85(2): 201-205, 2019 Feb 01.
Artigo em Inglês | MEDLINE | ID: mdl-30819299

RESUMO

Surgical therapy for esophageal cancer is the cornerstone of treatment, and the highest quality operation should lead to the highest cure rate. Evaluated lymph node (ELN) count is one quality measure that has been championed. The objective of this study was to explore ELN in esophagectomy, examine predictors of harvesting ≥12 nodes, and determine whether higher ELN improves overall survival (OS). ELN was examined in patients with resected esophageal cancer using the National Cancer Database from 2004 to 2013. In this study, 41,746 patients met the inclusion criteria. Fifty-two per cent of patients had 12 or more nodes harvested. Academic programs were most likely to harvest ≥12 nodes (58% of cases) compared with other programs (43-56% of cases). Seventy per cent of cases with ≥12 nodes harvested were performed at high-volume centers. Preoperative radiation or preoperative chemoradiation led to lower ELN (46% and 48%) versus preoperative chemotherapy alone (66%). Multivariate analysis showed that patients who had ≥12 nodes removed had better OS (Hazard Ratio 0.843 [95 confidence interval 0.820-0.867]). In addition, care at a high-volume facility, care at an academic facility, private insurance, and income ≥$63,000 were all associated with improved OS. Higher ELN count is associated with OS in patients with esophageal cancer. Patients who receive care at high-volume centers and academic centers are more likely to undergo more extensive lymphadenectomy. All centers should strive to examine at least 12 nodes to provide a quality esophagectomy.


Assuntos
Neoplasias Esofágicas/patologia , Neoplasias Esofágicas/cirurgia , Esofagectomia , Excisão de Linfonodo , Adulto , Idoso , Bases de Dados Factuais , Neoplasias Esofágicas/mortalidade , Feminino , Humanos , Linfonodos/patologia , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Taxa de Sobrevida , Resultado do Tratamento , Estados Unidos
10.
Am Surg ; 85(4): 327-334, 2019 Apr 01.
Artigo em Inglês | MEDLINE | ID: mdl-31043190

RESUMO

Studies have shown high-volume institutions have decreased mortality and increased survival for pancreatectomy. However, not all patients can travel to high-volume centers. Socioeconomic factors may influence treatment decisions. The goal of this study is to examine socioeconomic factors that determine where a patient is treated and how that location affects outcome. This is a retrospective study of the National Cancer Database of patients diagnosed with pancreatic cancer from 2004 to 2014. The primary outcome was to examine socioeconomic factors that predicted where a patient underwent their pancreatectomy. Patients treated at academic programs (APs) had to travel a mean distance of 80.9 miles, whereas patients treated at community programs (CPs) had to travel 31.7 miles (P < 0.0001). Spanish and Hispanic patients were less likely to travel to an AP (69% had surgery at an AP versus 76% of non-Hispanic patients, P < 0.001). Patients with higher comorbidities were also more likely to have care at CPs. Patients who had pancreatic cancer surgery at CPs were more likely to be Hispanic or with higher medical comorbidities. Those who had surgery at AP traveled further distances but had better perioperative outcomes and had an improvement in overall survival.


Assuntos
Adenocarcinoma/cirurgia , Acessibilidade aos Serviços de Saúde/estatística & dados numéricos , Disparidades em Assistência à Saúde/estatística & dados numéricos , Pancreatectomia , Neoplasias Pancreáticas/cirurgia , Fatores Socioeconômicos , Centros Médicos Acadêmicos , Adenocarcinoma/economia , Adenocarcinoma/etnologia , Adenocarcinoma/mortalidade , Adulto , Idoso , Bases de Dados Factuais , Feminino , Acessibilidade aos Serviços de Saúde/economia , Disparidades em Assistência à Saúde/economia , Disparidades em Assistência à Saúde/etnologia , Hospitais com Alto Volume de Atendimentos , Humanos , Masculino , Pessoa de Meia-Idade , Pancreatectomia/economia , Neoplasias Pancreáticas/economia , Neoplasias Pancreáticas/etnologia , Neoplasias Pancreáticas/mortalidade , Estudos Retrospectivos , Análise de Sobrevida , Viagem , Resultado do Tratamento , Estados Unidos/epidemiologia
11.
Am J Surg ; 215(4): 586-592, 2018 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-29100591

RESUMO

BACKGROUND: This study characterized the failure rate of non-operative management (NOM) for complicated appendicitis (CA; perforation, abscess, phlegmon), and compared outcomes among patients undergoing acute appendectomy (AA), elective interval appendectomy (EIA), and unplanned appendectomy after failing to improve with NOM. METHODS: Adults treated at one facility between 2007 and 2014 were retrospectively studied. RESULTS: Ninety-five patients presented with CA. Sixty individuals underwent AA. The remaining 35 patients initially underwent NOM: 14 underwent EIA, nine (25.7%) failed NOM, 12 never underwent surgery. All patients failing NOM had an open operation with most (55.6%) requiring bowel resection. AA and EIA were comparable in surgical approach, bowel resection and post-operative readmission. However, AA demonstrated a lower incidence of bowel resection (3.3% vs 17.1%, P = 0.048) when compared to all patients initially undergoing NOM. CONCLUSIONS: Due to the high incidence of failed NOM and the morbidity associated with failure, AA may be appropriate for CA.


Assuntos
Apendicite/complicações , Apendicite/terapia , Tratamento Conservador/métodos , Apendicectomia/estatística & dados numéricos , Apendicite/cirurgia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Falha de Tratamento , Resultado do Tratamento
12.
Am Surg ; 84(9): 1439-1445, 2018 Sep 01.
Artigo em Inglês | MEDLINE | ID: mdl-30268172

RESUMO

There is controversy regarding the role of neoadjuvant versus adjuvant chemotherapy for pancreatic cancer (PAC). Neoadjuvant therapy has been touted as a method to improve survival in PAC patients. This study's objective is to investigate predictors and potential benefits of neoadjuvant therapy in resectable PAC patients. The National Cancer Data Base was used to retrospectively analyze stage I and II surgically resected PAC patients receiving adjuvant or neoadjuvant therapy from 2004 to 2012. A total of 12,983 patients were identified. A significant increase in the rate of neoadjuvant therapy was observed over time with 5 per cent receiving neoadjuvant therapy in 2004 versus 17 per cent in 2012 (P < 0.0001). Multivariate analysis showed that patients were more likely to receive neoadjuvant therapy if they were treated at an academic facility. Private insurance was associated with higher odds of neoadjuvant chemotherapy (P < 0.0001). Pathological outcomes were improved in neoadjuvant patients compared with adjuvant patients on multivariate analysis with neoadjuvant patients having higher rates of negative surgical margins (OR: 1.273, 95% Confidence interval: 1.099-1.474) and negative lymph nodes (OR: 2.852, 95% Confidence interval: 2.547-3.194). Pathological outcomes are improved after neoadjuvant therapy compared with adjuvant therapy, with more patients achieving negative margins and negative lymph nodes. Prospective studies are needed to compare these two treatment modalities in a head to head comparison.


Assuntos
Adenocarcinoma/terapia , Antineoplásicos/uso terapêutico , Quimioterapia Adjuvante , Terapia Neoadjuvante , Pancreatectomia , Neoplasias Pancreáticas/terapia , Adenocarcinoma/mortalidade , Adenocarcinoma/patologia , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Bases de Dados Factuais , Feminino , Humanos , Tempo de Internação , Masculino , Margens de Excisão , Pessoa de Meia-Idade , Estadiamento de Neoplasias , Neoplasias Pancreáticas/mortalidade , Neoplasias Pancreáticas/patologia , Estudos Retrospectivos , Estados Unidos , Adulto Jovem
13.
J Transl Med ; 5: 38, 2007 Jul 18.
Artigo em Inglês | MEDLINE | ID: mdl-17640369

RESUMO

BACKGROUND: Ocular melanoma is the leading intraocular malignancy. There is no effective treatment for metastatic ocular melanoma. We sought a treatment targeting the tumor microenvironment as well as the tumor cells. METHODS: Migration of HUVEC cells, the ability of HUVEC cells to form tubes, and proliferative capacity of a human ocular melanoma cell line were tested in the presence of lenalidomide and sorafenib alone and in combination. The compounds were also tested in a rat aortic ring assay and were tested in a highly aggressive human ocular melanoma xenograft model. RESULTS: Lenalidomide and Sorafenib inhibit HUVEC ability to migrate and form tubes and when used in combination the inhibition is increased. The agents alone and in combination inhibit outgrowth in the rat aortic ring model. The combination of the agents improved the inhibition over either single agent. In a xenograft model, combination therapy inhibited tumor growth over inhibition by single agent alone in a significant fashion (p < 0.004: lenalidomide and p < 0.0035: sorafenib). Furthermore, spontaneous lung metastasis development was completely inhibited in the combination treated animals. Sixty percent of vehicle treated animals developed lung metastases compared to 50% of lenalidomide treated animals, and 33% of sorafenib treated animals. CONCLUSION: Lenalidomide and sorafenib are effective at targeting endothelial cells, inhibiting growth of ocular melanoma cells and can inhibit growth of tumors in a xenograft model as well as inhibit development of metastases. Combining these agents works in an additive to synergistic way to inhibit the growth of tumors and development of metastases.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Neoplasias Oculares/tratamento farmacológico , Melanoma/tratamento farmacológico , Animais , Protocolos de Quimioterapia Combinada Antineoplásica/farmacologia , Benzenossulfonatos/uso terapêutico , Movimento Celular/efeitos dos fármacos , Proliferação de Células/efeitos dos fármacos , Modelos Animais de Doenças , Células Endoteliais/efeitos dos fármacos , Células Endoteliais/metabolismo , Neoplasias Oculares/irrigação sanguínea , Neoplasias Oculares/patologia , Humanos , Técnicas In Vitro , Lenalidomida , Melanoma/irrigação sanguínea , Melanoma/patologia , Neovascularização Patológica/tratamento farmacológico , Niacinamida/análogos & derivados , Compostos de Fenilureia , Piridinas/uso terapêutico , Ratos , Ratos Sprague-Dawley , Sorafenibe , Talidomida/análogos & derivados , Talidomida/farmacologia , Talidomida/uso terapêutico , Ensaios Antitumorais Modelo de Xenoenxerto
14.
J Surg Educ ; 74(6): e31-e38, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-28623114

RESUMO

OBJECTIVE: Characterize the concordance among faculty and resident perceptions of surgical case complexity, resident technical performance, and autonomy in a diverse sample of general surgery procedures using case-specific evaluations. DESIGN: A prospective study was conducted in which a faculty surgeon and surgical resident independently completed a postoperative assessment examining case complexity, resident operative performance (Milestone assessment) and autonomy (Zwisch model). Pearson correlation coefficients (r) reaching statistical significance (p < 0.05) were further classified as moderate (r ≥ 0.40), strong (r ≥ 0.60), or very strong (r ≥ 0.80). SETTING: This study was conducted in the General Surgery Residency Program at an academic tertiary care facility (Geisinger Medical Center, Danville, PA). PARTICIPANTS: Participants included 6 faculty surgeons, in addition to 5 postgraduate year (PGY) 1, 6 midlevel (PGY 2-3), and 4 chief (PGY 4-5) residents. RESULTS: In total, 75 surgical cases were analyzed. Midlevel residents accounted for the highest number of cases (35, 46.6%). Overall, faculty and resident perceptions of case complexity demonstrated a strong correlation (r = 0.76, p < 0.0001). Technical performance scores were also strongly correlated (r = 0.66, p < 0.0001), whereas perceptions of autonomy demonstrated a moderate correlation (r = 0.56, p < 0.0001). Subgroup analysis revealed very strong correlations among faculty perceptions of case complexity and the perceptions of PGY 1 (r = 0.80, p < 0.0001) and chief residents (r = 0.82, p < 0.0001). All other intergroup correlations were strong with 2 notable exceptions as follows: midlevel and chief residents failed to correlate with faculty perceptions of autonomy and operative performance, respectively. CONCLUSIONS: General surgery residents generally demonstrated high correlations with faculty perceptions of case complexity, technical performance, and operative autonomy. This generalized accord supports the use of the Milestone and Zwisch assessments in residency programs. However, discordance among perceptions of midlevel resident autonomy and chief resident operative performance suggests that these trainees may need more direct communication from the faculty.


Assuntos
Docentes de Medicina/organização & administração , Cirurgia Geral/educação , Internato e Residência/organização & administração , Relações Interprofissionais , Salas Cirúrgicas , Autonomia Profissional , Adulto , Competência Clínica , Estudos de Coortes , Educação Baseada em Competências , Educação de Pós-Graduação em Medicina/organização & administração , Feminino , Humanos , Masculino , Percepção , Estudos Prospectivos , Estados Unidos
15.
Am Surg ; 82(9): 846-52, 2016 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-27670575

RESUMO

Literature about combining expertise of two specialties in esophageal cancer surgery is limited. We present the experience at a single institute comparing single-team (ST) versus two-team (TT) approach combining thoracic and abdominal surgeons. This is a retrospective study from a single tertiary care center. Data were collected from electronic medical records. Patients undergoing esophagectomy for esophageal cancer from November 2006 until August 2014 were included. The primary outcome measured was 30-day postoperative morbidity, secondary outcomes measured were operative time, intraoperative blood loss, and 30-day mortality. Results are reported as mean with an interquartile range. Forty-nine patients underwent esophagectomy by an ST and 51 patients by TT. Patient demographics, tumor characteristics, stage, pathology, and use of neoadjuvant therapy were comparable between groups. Charlson comorbidity index was significantly higher in TT group [3 (2, 4) vs 2 (2, 3), P = 0.02]. The TT group had a significantly shorter operative time compared to the ST group [304 (252,376) minutes vs 438 (375, 494] minutes, P < 0.0001). Intraoperative blood loss was 300 (200, 550) mL for the TT group and 250 (200,400) mL for the ST group (P = 0.29). There was no difference in 30-day postoperative morbidity (68.6% for TT, 59.2% for ST, P = 0.32) and mortality (2% each, P = 1) between the two groups. In conclusion, the operative time by the TT approach was significantly shorter than the ST approach with comparable postoperative morbidity and mortality. Long-term follow-up is needed to study this approach's effect on long-term survival.


Assuntos
Adenocarcinoma/cirurgia , Neoplasias Esofágicas/cirurgia , Esofagectomia/métodos , Equipe de Assistência ao Paciente/organização & administração , Adenocarcinoma/mortalidade , Adulto , Idoso , Idoso de 80 Anos ou mais , Perda Sanguínea Cirúrgica/estatística & dados numéricos , Neoplasias Esofágicas/mortalidade , Esofagectomia/mortalidade , Feminino , Seguimentos , Humanos , Tempo de Internação/estatística & dados numéricos , Modelos Lineares , Modelos Logísticos , Masculino , Pessoa de Meia-Idade , Análise Multivariada , Duração da Cirurgia , Complicações Pós-Operatórias/epidemiologia , Estudos Retrospectivos , Resultado do Tratamento
16.
JSLS ; 9(2): 222-4, 2005.
Artigo em Inglês | MEDLINE | ID: mdl-15984716

RESUMO

Massive splenomegaly due to multifocal littoral cell angioma was discovered incidentally in a 55-year-old man during a workup for an unrelated condition. The tumor was removed successfully by laparoscopic splenectomy. We report the second case of littoral cell angioma of the spleen treated laparoscopically.


Assuntos
Hemangioma/cirurgia , Laparoscopia , Esplenectomia/métodos , Neoplasias Esplênicas/cirurgia , Hemangioma/diagnóstico por imagem , Humanos , Achados Incidentais , Masculino , Pessoa de Meia-Idade , Neoplasias Esplênicas/diagnóstico por imagem , Tomografia Computadorizada por Raios X
18.
Arch Surg ; 137(7): 818-21, 2002 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-12093339

RESUMO

HYPOTHESIS: The application and reliability of fine-needle aspiration (FNA) biopsy in community hospitals may be less efficacious in the clinical assessment of patients with thyroid nodules than in tertiary referral centers. DESIGN: Retrospective review. SETTING: One community teaching hospital. PATIENTS: One hundred eighty-three patients who underwent thyroidectomy after FNA biopsy. INTERVENTIONS: Preoperative FNA biopsy cytopathologic testing and thyroidectomy and postoperative histopathologic testing. MAIN OUTCOME MEASURE: Preoperative cytopathologic reports were compared with postthyroidectomy histopathologic reports. RESULTS: Thyroid cancer was confirmed postoperatively in 70 patients (38%). An FNA biopsy diagnosis of papillary carcinoma (in 29 patients) correlated with a predictive accuracy of 93% (27 patients). Suspicious for papillary carcinoma (n = 14) correlated with malignancy in 8 patients (57%). Indeterminate follicular lesion (n = 60) correlated with malignancy in 18 patients (30%), of whom 16 (89%) had papillary carcinoma (10 patients had follicular variant) and 2 (11%) had follicular carcinoma. Indeterminate Hürthle cell lesion (n = 20) correlated with malignancy in 7 patients (35%). Atypical cell clusters (n = 5) did not correlate with malignancy. Benign FNA biopsy findings (n = 44) in patients who underwent thyroidectomy for other clinical features correlated with malignancy in 8 (18%). Of 11 patients who underwent thyroidectomy for insufficient number of cells after repeated FNA biopsy attempts, 2 (18%) had carcinoma. CONCLUSIONS: The accuracy of an FNA biopsy of thyroid nodules in a community hospital setting is comparable to results from major endocrine referral centers. An indeterminate follicular lesion was the most common FNA biopsy indication for thyroidectomy and correlated with the presence of differentiated thyroid cancers in 18 (30%) of 60 patients.


Assuntos
Biópsia por Agulha/métodos , Nódulo da Glândula Tireoide/patologia , Biópsia por Agulha/instrumentação , Hospitais Comunitários , Humanos , Valor Preditivo dos Testes , Cuidados Pré-Operatórios , Estudos Retrospectivos , Nódulo da Glândula Tireoide/cirurgia , Tireoidectomia
19.
J Gastrointest Surg ; 8(5): 539-42, 2004.
Artigo em Inglês | MEDLINE | ID: mdl-15239987

RESUMO

The objective of this study was to compare elective with emergent surgery in patients over the age of 90 years. We retrospectively reviewed the records of patients over 90 years of age who underwent alimentary tract surgery between 1994 and 2002 at a community teaching hospital. Of 100 patients (mean age 92 years; range 90 to 98 years), 82 were women and 18 were men. Seventy-three percent were admitted from private homes or assisted-living facilities, and 27% came from a skilled-nursing facility (SNF). Major comorbid conditions existed in 93%. Procedures included right hemicolectomy (22%), adhesiolysis and/or small bowel resection (19%), cholecystectomy (14%), left-sided or sigmoid colectomy (11%), and perineal proctectomy (8%). Overall morbidity and mortality were 36% and 15%, respectively. Postoperative complications included respiratory failure and pneumonia (11%), arrhythmias (9%), delirium (7%), congestive heart failure and myocardial infarction (6%), and urinary complications (4%). Twenty-eight percent of the operations were elective, and 72% were emergent. Morbidity and mortality were higher in the emergent group (41% and 19%, respectively) than in the elective group (26% and 4%, respectively; P=0.04), especially for patients with an emergent surgical problem who came from a nursing home (22%). Average length of stay was 12 +/- 10 days (range 2 to 69 days) with little difference between elective and emergent cases. Sixty-four percent of patients were discharged to skilled-nursing facilities. Alimentary tract surgery can be performed safely in nonagenarians, and they should not be denied surgical care solely because of age.


Assuntos
Idoso de 80 Anos ou mais , Procedimentos Cirúrgicos do Sistema Digestório/mortalidade , Procedimentos Cirúrgicos Eletivos/mortalidade , Emergências/epidemiologia , Idoso , Procedimentos Cirúrgicos do Sistema Digestório/estatística & dados numéricos , Procedimentos Cirúrgicos Eletivos/estatística & dados numéricos , Feminino , Instituição de Longa Permanência para Idosos , Hospitais Comunitários/estatística & dados numéricos , Hospitais de Ensino/estatística & dados numéricos , Humanos , Masculino , Casas de Saúde , Pennsylvania/epidemiologia , Estudos Retrospectivos
20.
J Gastrointest Surg ; 16(3): 524-8, 2012 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-22187411

RESUMO

BACKGROUND: Pancreatic fistula is a significant problem for patients undergoing distal pancreatectomy with fistula rates up to 61%. Fistulas lead to substantial morbidity. The study objective was to compare radiofrequency dissector closure with traditional stump closure for distal pancreatectomy. METHODS: Sixty-two patients underwent distal pancreatectomy at our institution between 2002 and 2011. Thirty-three patients had traditional stump closure compared with 29 patients who had radiofrequency closure. Fistula rates, operative times, and blood loss were compared. The control patients underwent open operation in 20 (60%) cases and laparoscopic operation in the remaining 13 (40%). Of the patients that underwent radiofrequency closure, 10 (35%) underwent open operation, and the remaining 19 (65%) patients underwent laparoscopic operation. RESULTS: Fistula occurred in 12 of 33 (36%) patients with traditional stump closure compared to 3 of 29 (10%) patients with radiofrequency closure (p<0.02). Operative time (307 vs. 231 min [p<0.002]) and blood loss (364-200 mL [p<0.02]) were decreased in the radiofrequency closure group. Length of stay decreased from 7.8 to 6.6 days; however, this was not statistically significant. CONCLUSIONS: The use of radiofrequency dissector in distal pancreatectomy is effective with low rates of fistula formation. Radiofrequency closure should be studied further in prospective trials.


Assuntos
Laparoscopia/métodos , Pancreatectomia/métodos , Fístula Pancreática/prevenção & controle , Neoplasias Pancreáticas/cirurgia , Técnicas de Sutura , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Incidência , Masculino , Pessoa de Meia-Idade , Pancreatectomia/efeitos adversos , Fístula Pancreática/epidemiologia , Fístula Pancreática/etiologia , Complicações Pós-Operatórias/epidemiologia , Complicações Pós-Operatórias/etiologia , Complicações Pós-Operatórias/prevenção & controle , Estudos Prospectivos , Taxa de Sobrevida/tendências , Resultado do Tratamento , Estados Unidos/epidemiologia
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