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1.
Am Surg ; 88(4): 746-751, 2022 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-34792413

RESUMEN

BACKGROUND: The literature is replete with studies that define the nexus of quantity and quality in complex surgical operations. These observations have heralded a call for centralization of care to high-volume centers. The purpose of this study was to chronicle improvements in quality associated with pancreaticoduodenectomy (PD) as a rural hospital matures from a low- to very high-volume center. METHODS: A retrospective review of a prospective pancreatic surgery database was undertaken from July 2007 to June 2020. Annual periods were characterized as low (≤12/year), high (13-29/year), and very high volume (≥30/year). Data for the following quality benchmarks were aggregated and compared: length of stay (LOS), 30-day readmissions, 30-day mortality, and 1- and 3-year survival. A subgroup analysis was undertaken in those patients undergoing PD for adenocarcinoma detailing margin status and number of lymph nodes harvested. Outcomes were compared using the Fisher's exact and Student's t-test. RESULTS: 375 PD were completed over the 13-year period; 62.1% were undertaken for ductal adenocarcinoma. There was a significant decrease in LOS and 30-day readmissions as the institution matured toward very high volume. There were no significant differences in 30-day mortality, 1- and 3-year survival, or margin negativity rates associated with volume. Extent of lymph node harvest significantly improved as institutional experience increased. DISCUSSION: Our pancreatic surgery program matured rapidly from low to very high volume with institutional commitment and dedicated resources. As the institution matured, operational efficiencies and surgical quality improved. Not unexpectedly, biology trumped volume as reflected in 1- and 3-year survival rates.


Asunto(s)
Adenocarcinoma , Neoplasias Pancreáticas , Adenocarcinoma/patología , Hospitales Rurales , Humanos , Tiempo de Internación , Pancreatectomía , Neoplasias Pancreáticas/patología , Pancreaticoduodenectomía , Estudios Prospectivos , Estudios Retrospectivos
2.
Am Surg ; 88(5): 929-935, 2022 May.
Artículo en Inglés | MEDLINE | ID: mdl-34964694

RESUMEN

INTRODUCTION: Although minimally invasive surgery (MIS) has clearly been associated with improved colorectal surgery outcomes, not all populations benefit from this approach. Using a national database, we analyzed both, the trend in the utilization of MIS for diverticulitis and differences in utilization by race. METHODS: Colon-targeted participant user files (PUFs) from 2012 to 18 were linked to respective PUFs in National Surgical Quality Improvement Project. Patients undergoing colectomy for acute diverticulitis or chronic diverticular disease were included. Surgical approach was stratified by race and year. To adjust for confounding and estimate the association of covariates with approach, data were fit using multivariable binary logistic regression main effects model. Using a joint effects model, we evaluated whether the odds of a particular approach over time was differentially affected by race. RESULTS: Of the 46 713 patients meeting inclusion criteria, 83% were white, with 7% black and 10% other. Over the study period, there was a decrease in the rate of open colectomy of about 5% P < .001, and increase in the rate of utilization of laparoscopic and robotic approaches (RC) P < .0001. After adjusting for confounders, black race was associated with open surgery P < .0001. CONCLUSION: There is disparity in the utilization of MIS for diverticulitis. Further research into the reasons for this disparity is critical to ensure known benefits of MIC are realized across all races.


Asunto(s)
Enfermedades Diverticulares , Diverticulitis , Laparoscopía , Colectomía , Diverticulitis/cirugía , Humanos , Procedimientos Quirúrgicos Mínimamente Invasivos , Complicaciones Posoperatorias , Estudios Retrospectivos
3.
Am Surg ; 87(5): 825-832, 2021 May.
Artículo en Inglés | MEDLINE | ID: mdl-33228390

RESUMEN

BACKGROUND: An absolute bilirubin level where preoperative biliary decompression (PBD) is indicated before pancreaticoduodenectomy has been elusive. Our goal was to identify a total bilirubin level whereby biliary decompression provides clear benefit, despite associated expenses and potential complications. MATERIALS AND METHODS: We reviewed a prospectively collected database of patients undergoing pancreaticoduodenectomy at the Vidant Medical Center between 2007 and 2016. Patients were arbitrarily subdivided into 3 groups based on presenting bilirubin level (≤10 mg/dL, 10.1-14.9 mg/dL, and ≥15 mg/dL) to determine the presence of overall complications, severe complications (Clavien-Dindo classification ≥3), prolonged length of stay (>1 SD), readmissions, or mortality. RESULTS: Common bile duct stenting independently predicted a higher incidence of complications in patients presenting with bilirubin ≤10 mg/dL (P = .03) vs. those patients going directly to surgery. No differences were observed for patients with bilirubin between 10.1 mg/dL and 14.9 mg/dL. Biliary decompression in patients with bilirubin ≥15 mg/dL independently predicted fewer overall (73.8% vs. 100%, P = .0082) and less severe complications (14.3% vs. 44.5%, P = .03) and lower readmission rates (15.8% vs. 55.6%, P = .03) vs. those going directly to surgery. Patients not undergoing biliary decompression underwent pancreaticoduodenectomy sooner than those decompressed (4.7 days vs. 17.2 days, P = .01). DISCUSSION: All patients presenting with bilirubin ≥15 mg/dL should undergo PBD, while those with bilirubin ≤10 mg/dL should forego stent placement to avoid stent-related complications. The decision to stent between 10.1 and 14.9 mg/dL should be made on a case-by-case basis keeping in mind timeliness to definitive cancer treatment.


Asunto(s)
Descompresión Quirúrgica , Drenaje , Ictericia Obstructiva/cirugía , Pancreaticoduodenectomía , Complicaciones Posoperatorias/prevención & control , Cuidados Preoperatorios/métodos , Adulto , Anciano , Anciano de 80 o más Años , Bilirrubina/sangre , Biomarcadores/sangre , Drenaje/métodos , Femenino , Humanos , Ictericia Obstructiva/sangre , Ictericia Obstructiva/diagnóstico , Tiempo de Internación/estadística & datos numéricos , Modelos Logísticos , Masculino , Persona de Mediana Edad , Readmisión del Paciente/estadística & datos numéricos , Seguridad del Paciente , Complicaciones Posoperatorias/epidemiología , Complicaciones Posoperatorias/etiología , Estudios Retrospectivos , Tiempo de Tratamiento , Resultado del Tratamiento
4.
J Am Coll Surg ; 230(4): 617-627.e9, 2020 04.
Artículo en Inglés | MEDLINE | ID: mdl-32007534

RESUMEN

BACKGROUND: Approximately 20% of patients with colorectal cancer (CRC) present with synchronous liver metastases (CRLM). The decision to resect simultaneously or sequentially remains controversial. The primary aim of this study was to determine whether simultaneous resection of CRC and CRLM is associated with increased complications compared to isolated resection. STUDY DESIGN: Prospective data from the American College of Surgeons (ACS) NSQIP, including the ACS NSQIP procedure-specific colectomy and hepatectomy modules from 2014 to 2017, were reviewed in a retrospective cohort study. Primary study outcome was combined 30-day complication rates; secondary outcomes included colectomy and hepatectomy-specific complication. Multivariable logistic regression was performed to control for confounding factors associated with postoperative complication. RESULTS: A total of 23,643 patients underwent colectomy, 7,462 hepatectomy, and 592 simultaneous resection for CRC and CLRM. Overall morbidity was higher among patients treated with simultaneous resection (29.9%) compared with either isolated colorectal (22.2%) or hepatic resection (17.1%; p < 0.001). Additionally, postoperative ileus (36.4% vs 19.1%) and anastomotic failure (7.9% vs 3.8%) were more common after simultaneous resection compared with colorectal resection (p < 0.05). Similarly, rates of bile leak (8.3% vs 6.2%, p = 0.195) and post-hepatectomy liver failure (8.7% vs 3.8%, p < 0.001) were higher after simultaneous resection compared with isolated hepatectomy. By multivariable logistic regression, simultaneous resection was associated with increased overall complication compared with isolated colon (odds ratio 1.64 [95% CI 1.36 to 1.96]) or liver resection (odds ratio 2.11 [95% CI 1.75 to 2.55]), as well as increased procedure-specific complication. CONCLUSIONS: Although simultaneous resection offers definitive resection for patients with synchronous CRC and CRLM, it is associated with significantly increased 30-day overall and procedure-specific postoperative morbidity.


Asunto(s)
Colectomía , Neoplasias Colorrectales/patología , Neoplasias Colorrectales/cirugía , Hepatectomía , Neoplasias Hepáticas/secundario , Neoplasias Hepáticas/cirugía , Complicaciones Posoperatorias/epidemiología , Adolescente , Adulto , Anciano , Estudios de Cohortes , Femenino , Humanos , Masculino , Persona de Mediana Edad , Morbilidad , Complicaciones Posoperatorias/prevención & control , Mejoramiento de la Calidad , Estudios Retrospectivos , Sociedades Médicas , Especialidades Quirúrgicas , Factores de Tiempo , Estados Unidos , Adulto Joven
5.
Am Surg ; 85(9): 965-972, 2019 Sep 01.
Artículo en Inglés | MEDLINE | ID: mdl-31638508

RESUMEN

Serum carbohydrate antigen (CA19-9) is known to correlate with stage, resectability, and prognosis of pancreatic cancer. The goal of pancreaticoduodenectomy is to achieve an R0 resection because worse outcomes are reported in the presence of positive margins. The purpose of this study was to evaluate the predictive utility of CA19-9 for pancreaticoduodenectomy margin status. A retrospective review of patients with pancreatic adenocarcinoma undergoing pancreaticoduodenectomy between October 2007 and November 2018 at our institution was performed. Patient demographics, preoperative CA19-9, and tumor characteristics were analyzed. Univariate and multivariate logistic regression was performed to determine factors associated with positive margins. A total of 184 patients were included. The mean age was 65 years; most patients were male and white. Majority had a positive preoperative CA19-9 (69%). There were nearly twice as many patients with negative as positive margins. Groups had similar demographics and preoperative CA19-9. A greater proportion of patients with negative margins had smaller tumors and early disease. On univariate and multivariate analysis, larger and higher stage tumors had greater odds of positive margins (P < 0.05). There was no significant association between margin status and preoperative CA19-9. Preoperative CA19-9 is not predictive of margin status. These results suggest that although preoperative CA19-9 values are associated with both resectability and prognosis, positive margins may not be a contributing mechanism.


Asunto(s)
Adenocarcinoma/sangre , Adenocarcinoma/cirugía , Antígeno CA-19-9/sangre , Márgenes de Escisión , Neoplasias Pancreáticas/sangre , Neoplasias Pancreáticas/cirugía , Pancreaticoduodenectomía , Adenocarcinoma/patología , Anciano , Anciano de 80 o más Años , Femenino , Humanos , Masculino , Estadificación de Neoplasias , Neoplasias Pancreáticas/patología , Estudios Retrospectivos , Análisis de Supervivencia
6.
J Surg Res ; 205(1): 95-101, 2016 09.
Artículo en Inglés | MEDLINE | ID: mdl-27621004

RESUMEN

BACKGROUND: The accurate diagnosis of malnutrition is imperative if we are to impact outcomes in the malnourished. The American Society of Parenteral and Enteral Nutrition (ASPEN) and Academy of Nutrition and Dietetics (AND), in an attempt to address this issue, have provided evidence-based criteria to diagnose malnutrition. The purpose of this study was to validate the ASPEN/AND criteria in a cohort of patients from a single high-volume surgical oncology unit. METHODS: Patients undergoing major abdominal surgery from June 2013 to March 2015 were classified by their nutritional status using the ASPEN/AND criteria. RESULTS: A total of 490 patients were included. Median age was 64 y, a majority were female (50.6%), white (60.2%), underwent elective procedures (77.6%), had a Charlson comorbidity score (CCS) of 3-5 (40.0%), and a Clavien-Dindo complication (CDC) grade of 0-II (81.2%). A total of 93 (19.0%) patients were classified as moderately/severely malnourished. On univariate analysis, malnourished patients were more likely to be older, undergo emergent procedures, and have a CCS >5 (P < 0.05). Malnutrition was also associated with a longer postoperative length of stay (LOS), higher cost, higher in-hospital mortality, more severe complications, and higher readmission rates (P < 0.05). Multivariate analysis reaffirmed the association between malnutrition, LOS (odds ratio [OR] = 1.67), and cost (OR = 2.49), P < 0.05. Complications (OR = 1.35), mortality rates (OR = 3.05), and readmission rates (OR = 1.34) P > 0.05 failed to reach significance. CONCLUSIONS: Malnutrition worsens LOS and cost. Utilization of standardized criteria consistently identifies patients at risk of negative outcomes who may benefit from perioperative nutritional support.


Asunto(s)
Procedimientos Quirúrgicos del Sistema Digestivo/efectos adversos , Desnutrición/complicaciones , Complicaciones Posoperatorias/etiología , Adulto , Anciano , Anciano de 80 o más Años , Procedimientos Quirúrgicos del Sistema Digestivo/economía , Procedimientos Quirúrgicos del Sistema Digestivo/mortalidad , Femenino , Costos de Hospital , Humanos , Tiempo de Internación , Masculino , Persona de Mediana Edad , North Carolina/epidemiología , Complicaciones Posoperatorias/mortalidad , Estudios Retrospectivos , Adulto Joven
7.
Am Surg ; 82(8): 698-703, 2016 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-27657584

RESUMEN

Readmission rates after pancreaticoduodenectomy (PD) are among the highest of any surgical procedure. The purpose of this study was to identify those factors present at discharge that may predict readmission after PD. All patients undergoing PD between 2010 and 2015 at a very high (>35 PD/year) volume center were entered into a prospective database. Twenty factors present at discharge from index admission identified on univariate analysis were subjected to multivariate analysis to identify those independently predictive of 30-day hospital readmission. A total of 220 patients underwent PD during the study period, 88 per cent of which had cancer. Mean age was 64.4 ± 11.7 years with slight male preponderance (54.5%) and significant African American representation (33.2%). Surgical complications occurred in 67.3 per cent of patients the most common of which included infectious/leak (30%), gastrointestinal (29%), cardiorespiratory (13%), other (13%), minor complications (7%), multi system failure (5%), and new onset diabetes (3%). The 30-day readmission rate was 27.3 per cent and was due to infection (89%), failure to thrive (32%), nausea/vomiting (15%), or other (15%). On multivariate analysis, presence of pancreatic leak/fistula at discharge was the only significant predictor of readmission, present in 62.5 per cent of all readmitted patients (P = 0.001). Comorbidities, length of stay, insurance status, obesity, smoking, and discharge to a care venue other than home did not predict readmission. Patients manifesting pancreatic fistula after PD are at high risk for hospital readmission. Enhanced scrutiny regarding suitability for discharge should be exercised in these patients and measures taken to minimize readmission whenever possible.


Asunto(s)
Fístula Pancreática/etiología , Neoplasias Pancreáticas/cirugía , Pancreaticoduodenectomía/efectos adversos , Alta del Paciente , Readmisión del Paciente , Complicaciones Posoperatorias/etiología , Adulto , Anciano , Anciano de 80 o más Años , Femenino , Humanos , Masculino , Persona de Mediana Edad , Estudios Retrospectivos , Factores de Riesgo , Adulto Joven
8.
Am Surg ; 82(8): 737-42, 2016 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-27657591

RESUMEN

The role of surgical resection in low-grade pancreatic neuroendocrine tumors (P-NET) is unclear. The patients diagnosed with low-grade P-NET from 1988 to 2012 were identified in SEER. Five hundred and sixty-one patients met the inclusion criteria. A majority were white (82.9%), and node negative (69.9%). Univariate analysis revealed that tumor size (<2 cm 8.3%, 2-4 cm 38.5%, and >4 cm 40.3%; P < 0.0001) and surgery (30.9% vs 25.3%; P = 0.0014) were associated with the risk of lymph node metastases (LNM). In contrast, age (P = 0.8360), gender (P = 0.4903), and race (P = 0.4235) were not. Five-year disease-free survival was associated with size (<2 cm 89.4%, 2-4 cm 80.0%, and >4 cm 74.5%; P = 0.0089), LNM (72.4% vs 82.9%; P = 0.0025), and surgery (84.3% vs 47.5%; P < 0.0001). Cox regression model showed that the association with LNM (P = 0.0025) and surgery (P < 0.0001) was significant. Surgery was associated with an improved disease-free survival for tumors >2 cm (2-4 cm, 84.4% vs 26.0% at five years; P = 0.0003, and >4 cm, 80.5% vs 49.5% at five years; P < 0.0001) but not for those with tumor size <2 cm (P = 0.4525). In conclusions, low-grade P-NETs in patients with tumor size >2 cm showed an increased risk of LNM and improved survival with resection.


Asunto(s)
Tumores Neuroendocrinos/patología , Tumores Neuroendocrinos/cirugía , Pancreatectomía , Neoplasias Pancreáticas/patología , Neoplasias Pancreáticas/cirugía , Supervivencia sin Enfermedad , Femenino , Humanos , Escisión del Ganglio Linfático , Metástasis Linfática , Masculino , Persona de Mediana Edad , Clasificación del Tumor , Estadificación de Neoplasias , Tumores Neuroendocrinos/mortalidad , Neoplasias Pancreáticas/mortalidad , Programa de VERF , Tasa de Supervivencia , Estados Unidos/epidemiología
9.
Surg Res Pract ; 2016: 6830260, 2016.
Artículo en Inglés | MEDLINE | ID: mdl-27648469

RESUMEN

Benefits of ERAS protocol have been well documented; however, it is unclear whether the improvement stems from the protocol or shifts in expectations. Interdisciplinary educational seminars were conducted for all health professionals. However, one test surgeon adopted the protocol. 394 patients undergoing elective abdominal surgery from June 2013 to April 2015 with a median age of 63 years were included. The implementation of ERAS protocol resulted in a decrease in the length of stay (LOS) and mortality, whereas the difference in cost was found to be insignificant. For the test surgeon, ERAS was associated with decreased LOS, cost, and mortality. For the control providers, the LOS, cost, mortality, readmission rates, and complications remained similar both before and after the implementation of ERAS. An ERAS protocol on the single high-volume surgical unit decreased the cost, LOS, and mortality.

10.
Cancer Genet ; 209(12): 567-581, 2016 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-27613577

RESUMEN

Molecular targeted therapy is widely utilized and effective in a number of solid tumors. In pancreatic adenocarcinoma, targeted therapy has been extensively evaluated; however, survival improvement of this aggressive disease using a targeted strategy has been minimal. The purpose of this study is to review therapeutic molecular targets in completed and ongoing later phase (II and III) clinical trials to have a better understanding of the rationale and progress towards targeted molecular therapies for pancreatic cancer. The PubMed database and the NCDI clinical trial website (www.clinicaltrials.gov) were queried to identify phase II and III completed and published (PubMed) and ongoing (clinicaltrials.gov) trials using the keywords: pancreatic cancer and molecular targeted therapy. The search engines were further limited by adding Phase II or III, active enrollment and North American. A total of 14 completed and published phase II/III clinical trials and 17 ongoing trials were identified. Evaluated strategies included inhibition of growth factor receptors (EGFR, PDGFR, VGFR, IGF-1R), tyrosine kinase inhibitors, MEK1/2, mTOR blockade and PI3K and HER2-neu pathway inhibitors. Only one trial conducted by the National Cancer Institute of Canada and the PANTAR trial have demonstrated a survival improvement from EGFR inhibition using erlotinib. These trials ultimately led to FDA approval of erlotinib/Tarceva in advanced stage disease. It remains unclear whether new combinations of cytotoxic chemotherapy or immunotherapy plus molecular targeted therapy will be beneficial in management of pancreatic adenocarcinoma. Despite a number of phase II and III trials, to date, only erlotinib has emerged as an approved targeted therapy in pancreatic adenocarcinoma. There are several ongoing late phase trials evaluating a number of targets, the results of which will become available over the next 1 to 2 years.


Asunto(s)
Adenocarcinoma/tratamiento farmacológico , Antineoplásicos/uso terapéutico , Ensayos Clínicos como Asunto , Terapia Molecular Dirigida , Proteínas de Neoplasias/antagonistas & inhibidores , Neoplasias Pancreáticas/tratamiento farmacológico , Adenocarcinoma/metabolismo , Humanos , Proteínas de Neoplasias/metabolismo , Neoplasias Pancreáticas/metabolismo
11.
Surgeon ; 14(4): 190-5, 2016 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-25563068

RESUMEN

PURPOSE: Preoperative lymphoscintigraphy for sentinel lymph node mapping in melanoma improves the ability to locate nodes. However, it still remains unclear whether this step is required for all patients. METHODS: Patients diagnosed with cutaneous melanoma from 1996 to 2012 were identified. Exclusion criteria were in situ disease, metastatic disease, or no SLN biopsy. RESULTS: 214 patients were evaluated. Median age was 57 years, the majority were male (59.8%), white (97.2%), and stage I (60.7%). SLN revealed metastatic disease in 14.5% of patients. The most common primary site was the trunk (43.4%) followed by head and neck (21%), upper extremity (19.2%), and lower extremity (16.4%). Multiple lymphatic basins were most common for head and neck lesions (66.7%) followed by those on the trunk (28.8%), with fewer identified when lower (11.4%), and upper extremities were involved (4.2%). When comparison was restricted to extremity vs. axial, a single basin was noted in 94.5% vs. 59.9% of patients, p < 0.0001. For all extremity lesions the SLN was located in the primary basin. Additional sites included in-transit (popliteal) and second tier basins. The only melanomas with bilateral or contralateral SLN were axial melanomas. CONCLUSIONS: Patients with axial melanomas benefit most from lymphoscintigraphy. This step may not be required for extremity melanoma.


Asunto(s)
Linfocintigrafia/métodos , Melanoma/diagnóstico por imagen , Melanoma/patología , Biopsia del Ganglio Linfático Centinela , Neoplasias Cutáneas/diagnóstico por imagen , Neoplasias Cutáneas/patología , Adulto , Anciano , Análisis de Varianza , Axila/patología , Estudios de Cohortes , Femenino , Humanos , Modelos Logísticos , Extremidad Inferior/patología , Ganglios Linfáticos/patología , Masculino , Melanoma/mortalidad , Melanoma/cirugía , Persona de Mediana Edad , Análisis Multivariante , Invasividad Neoplásica/patología , Estadificación de Neoplasias , Cuidados Preoperatorios/métodos , Pronóstico , Estudios Retrospectivos , Medición de Riesgo , Neoplasias Cutáneas/mortalidad , Neoplasias Cutáneas/cirugía , Análisis de Supervivencia , Resultado del Tratamiento , Extremidad Superior/patología , Melanoma Cutáneo Maligno
12.
J Surg Oncol ; 112(4): 338-43, 2015 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-26250782

RESUMEN

BACKGROUND: The impact of radiotherapy on local control in limb-preserving surgery for high-risk sarcoma has been well studied. However, the impact of the use and timing of radiation therapy on survival is unclear. METHODS: From 1988 to 2010, patients with Stage III extremity sarcoma were identified within the SEER registry and cohorts were created using propensity score matching between irradiated and non-irradiated groups. RESULTS: A total of 2,606 patients were identified, with a median age of 59 years a majority were white (81%), male (54%), received radiotherapy (78%), and had lower extremity (80%) sarcomas. The most common subtype was fibrohistiocytic (29.8%). Patients treated with radiotherapy were younger (57.2 vs. 60.3 years) and differed in subtype compared to those untreated. The matched cohorts were better balanced for all factors. Radiation therapy was associated with a 5% 5-year survival advantage on univariate analysis for both the unmatched (P = 0.002) and matched cohorts (P = 0.01). On multivariate analysis radiotherapy was associated with a 20% and 30% survival advantage for the matched and unmatched cohorts, respectively (P ≤ 0.02). The timing of radiotherapy did not affect survival. CONCLUSIONS: Radiotherapy, regardless of the timing, is associated with improved survival in high-risk sarcoma.


Asunto(s)
Extremidades/efectos de la radiación , Sarcoma/mortalidad , Sarcoma/radioterapia , Femenino , Estudios de Seguimiento , Humanos , Masculino , Persona de Mediana Edad , Análisis Multivariante , Clasificación del Tumor , Pronóstico , Puntaje de Propensión , Dosificación Radioterapéutica , Radioterapia Adyuvante , Programa de VERF , Sarcoma/patología , Tasa de Supervivencia
13.
Am Surg ; 81(8): 802-6, 2015 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-26215243

RESUMEN

Merkel cell carcinoma is a cutaneous neuroendocrine neoplasm that has been poorly studied in contemporary cohorts. Patients with Merkel cell carcinoma from 1986 to 2011 were identified in the Surveillance Epidemiology and End Results registry. A total of 5211 patients met the inclusion criteria. The mean age was 74.9 years; majority were male (61.4%) and white (94.9%). Patients were divided into two cohorts: Group 1 (1986 and 1999) and Group 2 (1999-2010). Group 2 was more likely to have Stage III disease (14.6 vs 23.3%, P < 0.001) and less likely to have Stage I/II disease (71.8 vs 65.1%, P < 0.0001). The increase in Stage III was likely secondary to increased use of sentinel lymph node biopsy. Disease-specific five-year survival for Stages I/II was 78.1 per cent and Stage III was 54 per cent. Disease-specific five-year survival was unchanged between Groups 1 and 2, 69.9 versus 66.6 per cent, respectively (P = 0.44). Both incidence and mortality significantly increased over the study period with P value for both trends <0.0001. In 1986, incidence and mortality rates per 100,000 were 0.22 and 0.03, respectively, and increased to 0.79 and 0.43 in 2011, respectively. There has been a greater than 333 per cent increase in mortality from Merkel cell carcinoma.


Asunto(s)
Carcinoma de Células de Merkel/epidemiología , Sistema de Registros , Neoplasias Cutáneas/epidemiología , Análisis de Supervivencia , Distribución por Edad , Anciano , Anciano de 80 o más Años , Carcinoma de Células de Merkel/diagnóstico , Carcinoma de Células de Merkel/terapia , Femenino , Humanos , Incidencia , Estimación de Kaplan-Meier , Masculino , Persona de Mediana Edad , Modelos de Riesgos Proporcionales , Programa de VERF , Distribución por Sexo , Neoplasias Cutáneas/diagnóstico , Neoplasias Cutáneas/terapia , Estados Unidos/epidemiología
15.
Surgery ; 158(3): 662-8, 2015 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-26096561

RESUMEN

BACKGROUND: Sentinel lymph node biopsy (SNB) as a staging and therapeutic procedure in melanomas 1-4 mm in thickness has been investigated extensively, however, the clinical value of SNB in thick melanomas is poorly understood. METHODS: Patients undergoing operation for clinically node-negative melanoma >4 mm in depth between 2003 and 2010 were identified in the Surveillance Epidemiology and End Results registry. Two groups were constructed: one with a wide excision with SNB and the other with wide excision alone. RESULTS: A total of 4,571 patients with clinically node-negative, thick melanoma were identified. The median age was 71 years, 96.9% were white, and 64.3% were male. SNB was performed in 2,746 (60.1%) and was positive in 32.2%. Univariate analysis demonstrated SNB was associated with younger age (64 vs 75 years; P < .001) and extremity primaries (P < .0001). On logistic regression, advanced age (P < .001), female sex (P = .009), and location in the head and neck region (P < .001) were associated with observation. On log-rank analysis, improved 5-year disease-specific survival (DSS) was associated with SNB (65 vs 62%; P = .008), location in the extremity versus head and neck or trunk (67 vs 61.5 and 60.3%; P = .004), female sex (69 vs 61%; P < .001), and no ulceration (74 vs 54%; P < .001). On Cox regression analysis, advanced age (P < .001), male sex (P = .01), trunk location (P = .0001), and ulceration (P < .001) continued to be associated with DSS. SNB was not associated with survival (P = .20). SNB status was a robust predictor of survival; a negative SNB had a 5-year DSS of 75.3 versus 44.1% (P < .0001), with a positive node. CONCLUSION: For patients with clinically node-negative, thick melanoma, SNB is a staging but not therapeutic procedure.


Asunto(s)
Melanoma/patología , Biopsia del Ganglio Linfático Centinela , Neoplasias Cutáneas/patología , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Femenino , Humanos , Modelos Logísticos , Masculino , Melanoma/mortalidad , Melanoma/cirugía , Persona de Mediana Edad , Pronóstico , Estudios Retrospectivos , Programa de VERF , Neoplasias Cutáneas/mortalidad , Neoplasias Cutáneas/cirugía , Análisis de Supervivencia , Resultado del Tratamiento , Adulto Joven
16.
Surgery ; 158(2): 466-71, 2015 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-26013986

RESUMEN

BACKGROUND: There has been a marked increase in the recognized incidence of gastroenteropancreatic neuroendocrine tumors (GEP-NETs). Studies have often combined duodenal neuroendocrine tumors (D-NETs) with other small bowel GEP-NETs. As a result, the natural history and clinical ramifications of these D-NETs is poorly understood. METHODS: Patients diagnosed with duodenal "carcinoid" tumors from 1983 to 2010 were identified in the Surveillance Epidemiology and End Results tumor registry. RESULTS: A total of 1,258 patients were identified. The mean age was 64 years. The majority of patients were male (55.6%), white (55.6%), and had stage I disease (66.2%). Patients meeting inclusion criteria were divided into 2 cohorts: (i) era 1 patients diagnosed with GEP-NETs from 1983 to 2005, and (ii) era 2 those diagnosed from 2005 to 2010. There was a clear increase in the incidence rate of D-NETs from 0.27 per 100,000 in 1983 to 1.1 per 100,000 in 2010 (P < .001). Comparison of patients from the different eras revealed that those in era 2 were more likely than era 1 to present with stage I disease (69.9 vs 57.5%; P < .01) and less likely to present with late-stage disease. The 5-year, disease-specific survival improved for era 2 patients compared with era 1 (89.3 vs 85.2%; P = .05); however, multivariate analysis demonstrated that stage but not era was associated with disease-specific survival. CONCLUSION: Prognosis for D-NETs, in contrast with other small bowel NETs, is excellent. There has been a steady increase in the recognized incidence of D-NETs, coincident with the migration to earlier disease stage and improved disease-specific survival.


Asunto(s)
Tumor Carcinoide/epidemiología , Neoplasias Duodenales/epidemiología , Adulto , Anciano , Tumor Carcinoide/diagnóstico , Neoplasias Duodenales/diagnóstico , Femenino , Humanos , Incidencia , Hallazgos Incidentales , Neoplasias Intestinales/diagnóstico , Neoplasias Intestinales/epidemiología , Estimación de Kaplan-Meier , Masculino , Persona de Mediana Edad , Tumores Neuroendocrinos/diagnóstico , Tumores Neuroendocrinos/epidemiología , Neoplasias Pancreáticas/diagnóstico , Neoplasias Pancreáticas/epidemiología , Pronóstico , Modelos de Riesgos Proporcionales , Programa de VERF , Neoplasias Gástricas/diagnóstico , Neoplasias Gástricas/epidemiología , Estados Unidos/epidemiología
17.
HPB (Oxford) ; 17(4): 311-7, 2015 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-25298015

RESUMEN

BACKGROUND: Pancreatic surgery is complex with the potential for costly hospitalization. METHODS: A retrospective review of patients undergoing a pancreatic resection was performed. RESULTS: The median age of the study population was 64 years. Half of the cohort was female (51%), and the majority were white (62%). Most patients underwent a pancreaticoduodenectomy (PD) (69%). The pre-operative age-adjusted Charlson comorbidity index was zero for 36% (n = 50), 1 for 31% (n = 43) and ≥2 for 33% (n = 45). The Clavien-Dindo grading system for post-operative complication was grade I in 17% (n = 24), whereas 45% (n = 62) were higher grades. The medians direct fixed, direct variable, fixed indirect and total costs were $2476, $15,397, $13,207 and $31,631, respectively. There was a positive contribution margin of $7108, whereas the net margin was a loss of $6790. On univariate analyses, age, type of operation and complication grade were associated with total cost (P ≤ 0.05), whereas operation type and complication grade were associated with a net margin (P = 0.01). These findings remained significant on multivariate analysis (P < 0.05). CONCLUSIONS: Increased cost, reimbursement and revenue were associated with type of operation and post-operative complications.


Asunto(s)
Centros Médicos Académicos/economía , Costos de Hospital , Hospitales de Alto Volumen , Reembolso de Seguro de Salud/economía , Pancreatectomía/economía , Pancreaticoduodenectomía/economía , Evaluación de Procesos, Atención de Salud/economía , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Femenino , Humanos , Modelos Logísticos , Masculino , Medicare/economía , Persona de Mediana Edad , Modelos Económicos , Análisis Multivariante , Oportunidad Relativa , Pancreatectomía/efectos adversos , Pancreaticoduodenectomía/efectos adversos , Complicaciones Posoperatorias/economía , Estudios Retrospectivos , Factores de Riesgo , Resultado del Tratamiento , Estados Unidos , Adulto Joven
19.
Am Surg ; 80(8): 821-6, 2014 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-25105406

RESUMEN

Duodenal neuroendocrine tumors are rare but increasing in incidence and optimal management is hindered by lack of duodenum-specific staging. Duodenal carcinoids were identified in the Surveillance, Epidemiology and End Results tumor registry. Depth of invasion was defined as limited to lamina propria (LP), invading muscularis propria (MP), through muscularis propria (TMP), and through serosa (S). Nine hundred forty-nine patients were identified with majorities being male (57%), white (70%), and node-negative (87%). Tumor size (cm) was less than 1, 47 per cent; 1 to 2, 35 per cent; and greater than 2, 8 per cent with 76 per cent LP. Lymph node (LN) involvement was associated with age, depth of invasion (LP 4%, MP 28%, TMP 54%, and S 57%) and size (less than 1 cm, 3%; 1 to 2 cm, 13%; and greater than 2 cm, 40%). Using the current T staging, LN involvement was: T1 (LP) 2 per cent, T2 (MP or greater than 1 cm) 13 per cent, T3 (TMP) 54 per cent, and T4 (S) 57 per cent. We reclassified current T1 to T1a and current T2 stage to T1b (1 to 2 cm and LP) and T2 (MP or greater than 2 cm). LN metastasis for T1b tumors was 4.7 per cent compared with 20.8 per cent for T2. The resulting TNM classification better defines 5-year disease-specific survival. Our modified staging schema identifies a low-risk group (T1a and T1b) that may be considered for local therapy.


Asunto(s)
Tumor Carcinoide/patología , Neoplasias Duodenales/patología , Tumores Neuroendocrinos/patología , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Supervivencia sin Enfermedad , Femenino , Humanos , Metástasis Linfática , Masculino , Persona de Mediana Edad , Estadificación de Neoplasias/métodos , Riesgo , Programa de VERF , Carga Tumoral , Estados Unidos
20.
J Surg Res ; 192(2): 280-5, 2014 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-25150082

RESUMEN

BACKGROUND: Eliminating catheter-associated urinary tract infections (CAUTI) is at the forefront of quality improvement and cost reduction for payers and hospitals alike. Herein we describe a double-focused strategy to eliminate CAUTI's on a surgical oncology unit over the course of 24 mo. METHODS: CAUTI's were tracked on a 30-bed surgical oncology unit 12 mo before and 12 mo after implementation of specific measures aimed at (1) decreasing utilization and (2) increasing catheter bundle and hand hygiene compliance. A policy of early Foley catheter removal was implemented. Univariate analyses were performed comparing nominal and numerical variables between the pre- and post-intervention groups. RESULTS: The pre- and post-intervention groups comprised of 1376 and 1467 patients, respectively. Postintervention, there was a significant decrease in both total Foley (P = 0.02) and patient (P = 0.03) days. This resulted in a significant reduction in utilization rate from 0.28 to 0.24, (P < 0.0001) and median CAUTI rate from 4.6 to 0.0 (P = 0.03). Reduced CAUTIs were associated with significant improvements in monthly bundle compliance at ≥95% (75% versus 17%, P = 0.003) and hand hygiene compliance at ≥95% (92% versus 58%, P = 0.05). Among our thoracic epidural cohort (n = 11), three patients (27%) required reinsertion for urinary retention. None of these epidural patients were diagnosed with a CAUTI. CONCLUSIONS: Although not eliminated entirely, CAUTIs on our unit were significantly reduced through decreased utilization and improved compliance to institutional patient safety measures. Adoption of these strategies to other inpatient units would not only improve patient safety but also result in significant cost savings.


Asunto(s)
Neoplasias Gastrointestinales/cirugía , Neoplasias de Cabeza y Cuello/cirugía , Control de Infecciones/métodos , Cateterismo Urinario/efectos adversos , Infecciones Urinarias/prevención & control , Neoplasias Urogenitales/cirugía , Centros Médicos Académicos/normas , Higiene de las Manos/métodos , Higiene de las Manos/normas , Humanos , Control de Infecciones/normas , Guías de Práctica Clínica como Asunto , Mejoramiento de la Calidad , Centros de Atención Terciaria/normas , Infecciones Urinarias/etiología
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