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1.
Pancreatology ; 2024 Jun 12.
Artigo em Inglês | MEDLINE | ID: mdl-38969544

RESUMO

BACKGROUND OBJECTIVES: The aim of this study was to determine the role of site-specific metastatic patterns over time and assess factors associated with extended survival in metastatic PDAC. Half of all patients with pancreatic ductal adenocarcinoma (PDAC) present with metastatic disease. The site of metastasis plays a crucial role in clinical decision making due to its prognostic value. METHODS: We examined 56,757 stage-IV PDAC patients from the National Cancer Database (2016-2019), categorizing them by metastatic site: multiple, liver, lung, brain, bone, carcinomatosis, or other. The site-specific prognostic value was assessed using log-rank tests while time-varying effects were assessed by Aalen's linear hazards model. Factors associated with extended survival (>3years) were assessed with logistic regression. RESULTS: Median overall survival (mOS) in patients with distant lymph node-only metastases (9.0 months) and lung-only metastases (8.1 months) was significantly longer than in patients with liver-only metastases (4.6 months, p < 0.001). However, after six months, the metastatic site lost prognostic value. Logistic regression identified extended survivors (3.6 %) as more likely to be younger, Hispanic, privately insured, Charlson-index <2, having received chemotherapy, or having undergone primary or distant site surgery (all p < 0.001). CONCLUSION: While synchronous liver metastases are associated with worse outcomes than lung-only and lymph node-only metastases, this predictive value is diminished after six months. Therefore, treatment decisions beyond this time should not primarily depend on the metastatic site. Extended survival is possible in a small subset of patients with favorable tumor biology and good conditional status, who are more likely to undergo aggressive therapies.

2.
Ann Surg ; 2023 Oct 23.
Artigo em Inglês | MEDLINE | ID: mdl-37870253

RESUMO

OBJECTIVE: This study aimed to analyze post-recurrence progression in context of recurrence sites and assess implications for post-recurrence treatment. BACKGROUND: Most patients with resected pancreatic ductal adenocarcinoma (PDAC) recur within two years. Different survival outcomes for location-specific patterns of recurrence are reported, highlighting their prognostic value. However, a lack of understanding of post-recurrence progression and survival remains. METHODS: This retrospective analysis included surgically treated PDAC patients at the NYU-Langone Health (2010-2021). Sites of recurrence were identified at time of diagnosis and further follow-up. Kaplan-Meier curves, log-rank test, and Cox-regression analyses were applied to assess survival outcomes. RESULTS: Recurrence occurred in 57.3% (196/342) patients with a median time to recurrence of 11.3 months (95%CI:12.6 to 16.5). First site of recurrence was local in 43.9% patients, liver in 23.5%, peritoneal in 8.7%, lung in 3.6%, while 20.4% had multiple sites of recurrence. Progression to secondary sites was observed in 11.7%. Only lung involvement was associated with significantly longer survival after recurrence compared to other sites (16.9 months vs. 8.49 months, P=0.003). In local recurrence, 21 (33.3%) patients were alive after one year without progression to secondary sites. This was associated with a CA19-9 of <100U/ml at time of primary diagnosis (P=0.039), nodal negative disease (P=0.023), and well-moderate differentiation (P=0.042) compared to patients with progression. CONCLUSION: Except for lung recurrence, post-recurrence survival after PDAC resection is associated with poor survival. A subset of patients with local-only recurrence do not quickly succumb to systemic spread. This is associated with markers for favorable tumor biology, making them candidates for potential curative re-resections when feasible.

3.
J Surg Oncol ; 127(1): 99-108, 2023 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-36177773

RESUMO

PURPOSE: To investigate the impact of race/ethnicity on surgical outcomes following pancreaticoduodenectomy for pancreatic cancer. METHODS: A retrospective review of patients undergoing pancreaticoduodenectomy for adenocarcinoma in the National Surgical Quality Improvement Program (NSQIP) database from 2014 to 2019. Patient and tumor characteristics and 30-day postoperative outcomes were compared. Multivariable logistic and linear regression models were conducted to investigate the relationship between race/ethnicity and surgical outcomes. RESULTS: Six thousand five hundred and sixty-two patients were included (84.5% White, 7.9% Black, 3% Hispanic, 4.6% Asian). Larger proportions of Blacks had preoperative American Society of Anesthesiologists class 3 or 4. There were no significant differences in tumor characteristics or operative techniques. A smaller proportion of Asians and Hispanics received neoadjuvant chemotherapy and/or radiation than Blacks and Whites. Relative to White, the Black race was independently associated with postoperative sepsis and reoperation. Both Black and Hispanic race/ethnicity were associated with prolonged intubation and delayed gastric emptying, and minorities races/ethnicities were associated with longer length of hospital stay. Relative to White, Hispanic, and Asian race/ethnicity were independently associated with a lower likelihood of neoadjuvant therapy (NAT) receipt. CONCLUSION: In ACS-NSQIP participating hospitals, non-White race/ethnicity was independently associated with adverse outcomes after pancreatic cancer resection. A possible disparity in NAT receipt may exist in Asian and Hispanic patients undergoing surgical resection.


Assuntos
Neoplasias Pancreáticas , Pancreaticoduodenectomia , Humanos , Pancreaticoduodenectomia/efeitos adversos , Etnicidade , Neoplasias Pancreáticas/cirurgia , Neoplasias Pancreáticas/etiologia , Complicações Pós-Operatórias/etiologia , Neoplasias Pancreáticas
4.
Int J Health Geogr ; 20(1): 27, 2021 06 07.
Artigo em Inglês | MEDLINE | ID: mdl-34098981

RESUMO

BACKGROUND: Social instability and logistical factors like the displacement of vulnerable populations, the difficulty of accessing these populations, and the lack of geographic information for hard-to-reach areas continue to serve as barriers to global essential immunizations (EI). Microplanning, a population-based, healthcare intervention planning method has begun to leverage geographic information system (GIS) technology and geospatial methods to improve the remote identification and mapping of vulnerable populations to ensure inclusion in outreach and immunization services, when feasible. We compare two methods of accomplishing a remote inventory of building locations to assess their accuracy and similarity to currently employed microplan line-lists in the study area. METHODS: The outputs of a crowd-sourced digitization effort, or mapathon, were compared to those of a machine-learning algorithm for digitization, referred to as automatic feature extraction (AFE). The following accuracy assessments were employed to determine the performance of each feature generation method: (1) an agreement analysis of the two methods assessed the occurrence of matches across the two outputs, where agreements were labeled as "befriended" and disagreements as "lonely"; (2) true and false positive percentages of each method were calculated in comparison to satellite imagery; (3) counts of features generated from both the mapathon and AFE were statistically compared to the number of features listed in the microplan line-list for the study area; and (4) population estimates for both feature generation method were determined for every structure identified assuming a total of three households per compound, with each household averaging two adults and 5 children. RESULTS: The mapathon and AFE outputs detected 92,713 and 53,150 features, respectively. A higher proportion (30%) of AFE features were befriended compared with befriended mapathon points (28%). The AFE had a higher true positive rate (90.5%) of identifying structures than the mapathon (84.5%). The difference in the average number of features identified per area between the microplan and mapathon points was larger (t = 3.56) than the microplan and AFE (t = - 2.09) (alpha = 0.05). CONCLUSIONS: Our findings indicate AFE outputs had higher agreement (i.e., befriended), slightly higher likelihood of correctly identifying a structure, and were more similar to the local microplan line-lists than the mapathon outputs. These findings suggest AFE may be more accurate for identifying structures in high-resolution satellite imagery than mapathons. However, they both had their advantages and the ideal method would utilize both methods in tandem.


Assuntos
Imunização , Vacinação , Adulto , Criança , Características da Família , Sistemas de Informação Geográfica , Humanos , Imagens de Satélites
5.
MMWR Morb Mortal Wkly Rep ; 69(41): 1497-1502, 2020 Oct 16.
Artigo em Inglês | MEDLINE | ID: mdl-33056953

RESUMO

On May 13, 2020, the Wisconsin Supreme Court declared the state's Safer at Home Emergency Order (https://evers.wi.gov/Documents/COVID19/EMO28-SaferAtHome.pdf) "unlawful, invalid, and unenforceable,"* thereby increasing opportunities for social and business interactions. By mid-June, Winnebago County,† Wisconsin experienced an increase in the number of infections with SARS-CoV-2, the virus that causes coronavirus disease 2019 (COVID-19), with the largest increase among persons aged 18-23 years (young adults) (1). This age group§ accounts for 12.5% of the population in the county. To identify factors that influence exposure to COVID-19 among young adults in Winnebago County, characteristics of COVID-19 cases and drivers of behaviors in this age group were examined. During March 1-July 18, 2020, 240 young adults received positive SARS-CoV-2 test results, accounting for 32% of all Winnebago County cases. In 30 key informant interviews, most interviewees reported exposure to misinformation, conflicting messages, or opposing views about the need for and effectiveness of masks. Thirteen young adults described social or peer pressure to not wear a mask and perceived severity of disease outcome for themselves as low but high for loved ones at risk. Having low perceived severity of disease outcome might partly explain why, when not in physical contact with loved ones at risk, young adults might attend social gatherings or not wear a mask (2). Exposure to misinformation and unclear messages has been identified as a driver of behavior during an outbreak (3,4), underscoring the importance of providing clear and consistent messages about the need for and effectiveness of masks. In addition, framing communication messages that amplify young adults' responsibility to protect others and target perceived social or peer pressure to not adhere to public health guidance might persuade young adults to adhere to public health guidelines that prevent the spread of COVID-19.


Assuntos
Infecções por Coronavirus/epidemiologia , Exposição Ambiental/estatística & dados numéricos , Pneumonia Viral/epidemiologia , Adolescente , COVID-19 , Feminino , Humanos , Masculino , Pandemias , Fatores de Risco , Wisconsin/epidemiologia , Adulto Jovem
6.
J Surg Oncol ; 121(2): 249-257, 2020 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-31792986

RESUMO

BACKGROUND: Preoperatively identifying patients who will require discharge to extended care facilities (ECFs) after major cancer surgery is valuable. This study compares existing models and derives a simple, preoperative tool for predicting discharge destination after major oncologic gastrointestinal surgery. METHODS: The American College of Surgeon National Surgical Quality Improvement datasets were used to evaluate existing risk stratification and frailty assessment tools between the years 2011 and 2015. A novel tool for predicting discharge to ECF was developed in the 2011-2015 dataset and subsequently validated in the 2016 dataset. RESULTS: Major resections were analyzed for 61 683 malignancies: 6.9% esophagus, 5.3% stomach, 20.0% liver, 21.0% pancreas, and 46.8% colon/rectum. The overall ECF discharge rate was 9.1%. The American Society of Anesthesiologist score, 11-point modified frailty index (mFI), and 5-point abbreviated modified frailty index (amFI) demonstrated only moderate discrimination in predicting ECF discharge (c-statistic: 0.63-0.65). In contrast, our weighted cancer cancer abbreviated modified frailty index (camFI) score demonstrated improved discrimination with c-statistic of 0.73. The camFI displayed >90% negative predictive value for ECF discharge at every operative site. CONCLUSION: The camFI is a simple tool that can be used preoperatively to counsel patients on their risk of ECF discharge, and to identify patients with the least need for ECF discharge after major oncologic gastrointestinal surgery.

7.
J Surg Res ; 234: 20-25, 2019 02.
Artigo em Inglês | MEDLINE | ID: mdl-30527474

RESUMO

BACKGROUND: Surgical residents train under immense stress, often manifesting into poor well-being. While recent research identifies methods of coping with stress, few studies empirically investigate the role of the environment on surgical resident well-being. We aimed to assess surgical resident perceptions of workplace climate, organizational support, burnout, and job satisfaction to test a mediation model identifying antecedents to well-being. MATERIALS AND METHODS: A convenience sampling of program directors from general surgery within the Eastern region of the United States were emailed to request either agenda time to collection data via paper survey or to forward an electronic survey link to their residents between March 2016 and June 2016. The survey included scales demonstrating validity evidence on well-being, climate, and perceptions of support. RESULTS: Based on 160 general surgery residents (out of 557; 29% response rate) across 19 training programs, our mediation model found that job satisfaction was significantly predicted by workplace climate directly (direct effect = 0.37, 95% CI [0.19, 0.55]) and indirectly (specific indirect effect = 0.07, 95% CI [0.01, 0.13]) through perceived organizational support and burnout, while controlling for training year and gender, F(5,147) = 53.76, P < 0.001, Rsq. = 0.65. CONCLUSIONS: Medical education requires an additional focus on how the clinical learning environment affects surgical resident well-being. Health systems and training programs will need to collaborate on workplace innovations to improve workplace climate for trainees to address the concerns of well-being with a modern surgical workforce.


Assuntos
Internato e Residência , Satisfação no Emprego , Cirurgiões/psicologia , Local de Trabalho/psicologia , Esgotamento Profissional , Feminino , Humanos , Masculino , Cultura Organizacional
8.
Int J Health Geogr ; 18(1): 11, 2019 05 16.
Artigo em Inglês | MEDLINE | ID: mdl-31096971

RESUMO

BACKGROUND: Four wild polio-virus cases were reported in Borno State, Nigeria 2016, 1 year after Nigeria had been removed from the list of polio endemic countries by the World Health Organization. Resulting from Nigeria's decade long conflict with Boko Haram, health officials had been unable to access as much as 60% of the settlements in Borno, hindering vaccination and surveillance efforts. This lack of accessibility made it difficult for the government to assess the current population distribution within Borno. This study aimed to use high resolution, visible band satellite imagery to assess the habitation of inaccessible villages in Borno State. METHODS: Using high resolution (31-50 cm) imagery from DigitalGlobe, analysts evaluated the habitation status of settlements in Borno State identified by Nigeria's Vaccination Tracking System. The analysts looked at imagery of each settlement and, using vegetation (overgrowth vs. cleared) as a proxy for human habitation, classified settlements into three categories: inhabited, partially abandoned, and abandoned. Analysts also classified the intact percentage of each settlement starting at 0% (totally destroyed since last assessment) and increasing in 25% intervals through 100% (completely intact but not expanded) up to 200+% (more than doubled in size) by looking for destroyed buildings. These assessments were then used to adjust previously established population estimates for each settlement. These new population distributions were compared to vaccination efforts to determine the number of children under 5 unreached by vaccination teams. RESULTS: Of the 11,927 settlements assessed 3203 were assessed as abandoned (1892 of those completely destroyed), 662 as partially abandoned, and 8062 as fully inhabited as of December of 2017. Comparing the derived population estimates from the new assessments to previous assessment and the activities of vaccination teams shows that an estimated 180,155 of the 337,411 under five children who were unreached in 2016 were reached in 2017 (70.5% through vaccination efforts in previously inaccessible areas, 29.5% through displacement to accessible areas). CONCLUSIONS: This study's methodology provides important planning and situation awareness information to health workers in Borno, Nigeria, and may serve as a model for future data gathering efforts in inaccessible regions.


Assuntos
Doenças Endêmicas/prevenção & controle , Poliomielite/prevenção & controle , Vacinas contra Poliovirus/uso terapêutico , Poliovirus/isolamento & purificação , Imagens de Satélites/métodos , Vacinação/métodos , Pré-Escolar , Feminino , Humanos , Imunização/métodos , Lactente , Recém-Nascido , Masculino , Nigéria/epidemiologia , Poliomielite/epidemiologia
9.
HPB (Oxford) ; 21(7): 810-817, 2019 07.
Artigo em Inglês | MEDLINE | ID: mdl-30528554

RESUMO

BACKGROUND: Distal pancreatic neuroendocrine tumors (PNET) and pancreatic cystic neoplasms (PCN) are often incidentally found in older adults, requiring careful consideration between operative management and watchful waiting. This study analyzes the short-term complications associated with distal pancreatectomy (DP) for PNET and PCN in older adults to inform clinical decision-making. METHODS: Patients undergoing DP for PNET and PCN were analyzed using the American College of Surgeons National Surgical Quality Improvement Program (ACS-NSQIP) database and the pancreatectomy procedure-targeted dataset. Associations between decade of age and 30-day outcomes were evaluated. RESULTS: 1626 patients were analyzed from 2014 to 2015. 692 (42.6%) were younger than 60 years, 507 (31.2%) were sexagenarians, 342 (21.0%) were septuagenarians, and 85 (5.2%) were octogenarians. Minimally invasive approaches were used in 62.7%. While septuagenarians and octogenarians constituted 26.3% of the cohort, they were affected by 55.6% of reintubations, 66.7% of failures to wean, 82.4% of myocardial infarctions, and 57.1% of septic shock. Septuagenarians and octogenarians had longer hospital stays, as compared to those younger than 60 years. CONCLUSION: Septuagenarians and octogenarians are disproportionately affected by perioperative complications after DP for PNET and PCN. Careful patient selection and thorough counseling should be provided when surgery is considered.


Assuntos
Carcinoma Neuroendócrino/cirurgia , Neoplasias Císticas, Mucinosas e Serosas/cirurgia , Pancreatectomia/efeitos adversos , Neoplasias Pancreáticas/cirurgia , Complicações Pós-Operatórias/epidemiologia , Fatores Etários , Idoso , Idoso de 80 Anos ou mais , Carcinoma Neuroendócrino/mortalidade , Carcinoma Neuroendócrino/patologia , Comorbidade , Bases de Dados Factuais , Feminino , Humanos , Incidência , Tempo de Internação , Masculino , Pessoa de Meia-Idade , Neoplasias Císticas, Mucinosas e Serosas/mortalidade , Neoplasias Císticas, Mucinosas e Serosas/patologia , Pancreatectomia/mortalidade , Neoplasias Pancreáticas/mortalidade , Neoplasias Pancreáticas/patologia , Complicações Pós-Operatórias/mortalidade , Complicações Pós-Operatórias/terapia , Prevalência , Medição de Risco , Fatores de Risco , Fatores de Tempo , Resultado do Tratamento , Estados Unidos/epidemiologia
10.
J Surg Res ; 215: 6-11, 2017 07.
Artigo em Inglês | MEDLINE | ID: mdl-28688662

RESUMO

BACKGROUND: Organizational effects on job satisfaction, burnout, work-life balance, and perceived support have not been studied in the context of the clinical learning environment. We evaluated the relationship between academic resources and resident well-being, the clinical learning environment, and in-service examination performance of surgical residents. MATERIALS AND METHODS: Residents of general surgery and surgical specialty programs were recruited from March 2016 through June 2016 across the Southeast, Mid-Atlantic, and Northeast regions. Program directors were asked to allow distribution of a paper survey or to forward an electronic survey link onto residents. Five dichotomous questions were asked regarding access to academic resources. Validated measures were obtained assessing resident well-being and perceived clinical learning environment. Data were analyzed through t-tests and chi-squared test of independence. RESULTS: We received 276 respondents across 50 programs. Residents perceiving adequate support to succeed had less burnout (P = 0.008), better resilience (P = 0.009), better job satisfaction (P < 0.001), less work/life strain (P = 0.001), better workplace climate (P < 0.001), better organizational support (P < 0.001), and were more likely to have high performance on the in-service examination (P = 0.001). Specific resources including educational stipends, review questions, in-service board prep, and support for poor performers correlated with improved well-being and perceived clinical learning environment. CONCLUSIONS: Provision of academic resources has implications beyond in-service examination performance, correlating with improved resident well-being and perceptions of the clinical learning environment.


Assuntos
Esgotamento Profissional/prevenção & controle , Competência Clínica , Internato e Residência/organização & administração , Satisfação no Emprego , Apoio Social , Especialidades Cirúrgicas/educação , Equilíbrio Trabalho-Vida/organização & administração , Feminino , Humanos , Internato e Residência/métodos , Masculino , Cultura Organizacional , Estados Unidos
11.
BMC Med Educ ; 16: 29, 2016 Jan 27.
Artigo em Inglês | MEDLINE | ID: mdl-26818129

RESUMO

BACKGROUND: The Wilmer General Eye Services (GES) at the Johns Hopkins Hospital is the clinic where residents provide supervised comprehensive medical and surgical care to ophthalmology patients. The clinic schedule and supervision structure allows for a progressive increase in trainee responsibility, with graduated autonomy and longitudinal continuity of care over the three years of ophthalmology residency training. This study sought to determine the number of cases the GES contributes to the resident surgical experiences. In addition, it was intended to create benchmarks for patient volumes, cataract surgery yield and room utilization as part of an educational initiative to introduce residents to metrics important for practice management. METHODS: The electronic surgical posting system database was explored to determine the numbers of cases scheduled for patients seen by residents in the GES. In addition, aggregated residents' self-reported Accreditation Council for Graduate Medical Education (ACGME) surgical logs were collected for comparison. Finally transactional databases were queried to determine clinic volumes of new and established patients. The proportion of resident surgeries (1(st) surgeon and assistant) provided by GES patients, cataract surgery yield and new patient rates were calculated. Data was collected from July 1(st), 2014 until March 31(st), 2015 for all 16 residents (6 third year, 5 second year and 5 first year). RESULTS: The percentage of cataract, oculoplastics, cornea and glaucoma surgeries in which a resident was 1(st) surgeon and the patient came from the GES was 91.3, 76.1, 65.6, and 93.9 respectively. The new patient rate was 28.1% and room utilization was 50.4%. Cataract surgery yield was 29.2 DISCUSSION: The GES provides a significant proportion of primary surgeon opportunities for the residents, and in some instances, the majority of cases. Compared to benchmarks available for private practices, the new patient rate is high while the cataract surgery yield is low. The room utilization is lower than the 85% preferred by the hospital system. These are the first benchmarks of this type for an academic resident ophthalmology practice in the United States. CONCLUSIONS: Our study suggests that resident-hosted clinics can provide the majority of surgical opportunities for ophthalmology trainees, particulary with regard to cataract cases. However, because our study is the first academic resident practice to publish metrics of the type used in private practices, it is impossible to determine where our clinic stands compared to other training programs. Therefore, the authors strongly encourage ophthalmology training programs to explore and publish practice metrics. This will permit the creation of a benchmarking program that could be used to quantify efforts at enhancing ophthalmic resident education.


Assuntos
Competência Clínica/normas , Procedimentos Cirúrgicos Oftalmológicos/educação , Oftalmologia/educação , Ambulatório Hospitalar/normas , Administração da Prática Médica/organização & administração , Benchmarking , Competência Clínica/estatística & dados numéricos , Educação de Pós-Graduação em Medicina/métodos , Educação de Pós-Graduação em Medicina/normas , Humanos , Internato e Residência/organização & administração , Internato e Residência/normas , Internato e Residência/estatística & dados numéricos , Procedimentos Cirúrgicos Oftalmológicos/classificação , Procedimentos Cirúrgicos Oftalmológicos/estatística & dados numéricos , Oftalmologia/organização & administração , Oftalmologia/estatística & dados numéricos , Ambulatório Hospitalar/organização & administração , Ambulatório Hospitalar/estatística & dados numéricos , Administração da Prática Médica/normas , Administração da Prática Médica/estatística & dados numéricos , Estados Unidos
12.
Reprod Biomed Online ; 24(6): 614-20, 2012 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-22503277

RESUMO

This study retrospectively analysed array comparative genomic hybridization (CGH) results of 7753 embryos from 990 patients to determine the frequency of embryonic euploidy and its relationship with the cohort size (i.e. the number of embryos available for biopsy and array CGH analysis). Linear regression analysis was performed to assess the effect of cohort size on euploidy rate adjusted for the effect of female age. While increasing female age was associated with a significant decrease in euploidy rate of day-3 and day-5 embryos (P<0.001 for both groups), cohort size was not significantly associated with euploidy rate. Logistic regression analysis was performed to assess the effect of cohort size, adjusted for maternal age, on the likelihood of having at least one euploid embryo available for transfer. The odds of having at least one euploid embryo in an assisted cycle was significantly decreased by increasing female age (P<0.01 for both day-3 and day-5 embryos) and was significantly increased by every additional embryo available for analysis (P<0.001 for both day-3 and day-5 embryos).


Assuntos
Aneuploidia , Blastocisto , Hibridização Genômica Comparativa/métodos , Transferência Embrionária/métodos , Diagnóstico Pré-Implantação/métodos , Adulto , Fatores Etários , Biópsia , Estudos de Coortes , Feminino , Humanos , Hibridização in Situ Fluorescente , Modelos Lineares , Idade Materna , Gravidez , Estudos Retrospectivos
14.
Brachytherapy ; 21(2): 255-259, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35031255

RESUMO

The treatment of borderline resectable (BR) pancreatic cancer is challenging and requires a multidisciplinary approach with chemotherapy, radiation and surgical resection. Despite using chemotherapy and radiotherapy in the neoadjuvant setting, achievement of negative surgical margins remains technically challenging. Positive margins are associated with increased local recurrences and worse overall survival and there are no standard options for treatment. The CivaSheet is an FDA-cleared implantable sheet with a matrix of unidirectional planar low-dose-rate (LDR) Palladium-103 (Pd-103) sources. The sources are shielded on one side with gold to spare radio-sensitive structures such as the bowel. The sheet can easily be customized and implanted at the time of surgery when there is concern for close or positive margins. The CivaSheet provides an interesting solution to target the region of close/positive margins after pancreatectomy. Here we discuss the physical properties, the dosimetry, clinical workflow and early patient outcomes with the CivaSheet in pancreatic cancer.


Assuntos
Braquiterapia , Neoplasias Pancreáticas , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Braquiterapia/métodos , Humanos , Terapia Neoadjuvante , Paládio/uso terapêutico , Neoplasias Pancreáticas/radioterapia , Neoplasias Pancreáticas/cirurgia , Radioisótopos/uso terapêutico
15.
Geospat Health ; 17(2)2022 11 29.
Artigo em Inglês | MEDLINE | ID: mdl-36468597

RESUMO

Afghanistan continues to experience challenges affecting polio eradication. Mass polio vaccination campaigns, which aim to protect children under the age of 5, are a key eradication strategy. To date, the polio program in Afghanistan has only employed facility-based seroprevalence surveys, which can be subject to sampling bias. We describe the feasibility in implementing a cross-sectional household poliovirus seroprevalence survey based on geographical information systems (GIS) in three districts. Digital maps with randomly selected predetermined starting points were provided to teams, with a total target of 1,632 households. Teams were instructed to navigate to predetermined starting points and enrol the closest household within 60 m. To assess effectiveness of these methods, we calculated percentages for total households enrolled with valid geocoordinates collected within the designated boundary, and whether the Euclidean distance of households were within 60 m of a predetermined starting point. A normalized difference vegetation index (NDVI) image ratio was conducted to further investigate variability in team performances. The study enrolled a total of 78% of the target sample with 52% of all households within 60 m of a pre-selected point and 79% within the designated cluster boundary. Success varied considerably between the four target areas ranging from 42% enrolment of the target sample in one place to 90% enrolment of the target sample in another. Interviews with the field teams revealed that differences in security status and amount of non-residential land cover were key barriers to higher enrolment rates. Our findings indicate household poliovirus seroprevalence surveys using GIS-based sampling can be effectively implemented in polio endemic countries to capture representative samples. We also proposed ways to achieve higher success rates if these methods are to be used in the future, particularly in areas with concerns of insecurity or spatially dispersed residential units.


Assuntos
Poliomielite , Poliovirus , Humanos , Afeganistão/epidemiologia , Estudos Transversais , Sistemas de Informação Geográfica , Poliomielite/epidemiologia , Poliomielite/prevenção & controle , Estudos Soroepidemiológicos , Pré-Escolar , Lactente
16.
Brachytherapy ; 20(1): 207-217, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-32978081

RESUMO

BACKGROUND: Margin negative resection in pancreatic cancer remains the only curative option but is challenging, especially with the retroperitoneal margin. Intraoperative radiation therapy (IORT) can improve rates of local control but requires specially designed facilities and equipment. This retrospective review describes initial results of a novel implantable mesh of uni-directional low dose rate (LDR) Pd-103 sources (sheet) used to deliver a focal margin-directed high-dose boost in patients with concern for close or positive margins. METHODS: Eleven consecutive patients from a single institution with resectable or borderline resectable pancreatic cancer with concern for positive margins were selected for sheet placement and retrospectively reviewed. Procedural outcomes, including the time to implant the device and complications, and clinical outcomes, including survival and patterns of failure, are reported. A dosimetric comparison of the LDR sheet with hypothetical stereotactic body radiotherapy (SBRT) boost is reported. RESULTS: One patient had a resectable disease, and 10 patients had a borderline resectable disease and underwent neoadjuvant treatment. Sheet placement added 15 min to procedural time with no procedural or sheet-related complications. At a median follow up of 13 months, 64% (n = 7) of patients are alive and 55% (n = 6) are disease-free. Compared to a hypothetical SBRT boost, the LDR sheet delivered a negligible dose to kidneys, liver, and spinal cord with a 50% reduction in max dose to the small bowel. CONCLUSION: This is the first report of the use of an implantable uni-directional LDR brachytherapy sheet in patients with resected pancreatic cancer with concern for margin clearance, with no associated toxicity and favorable clinical outcomes.


Assuntos
Braquiterapia , Neoplasias Pancreáticas , Braquiterapia/métodos , Estudos de Viabilidade , Humanos , Terapia Neoadjuvante , Paládio , Neoplasias Pancreáticas/radioterapia , Radioisótopos , Estudos Retrospectivos
18.
Surg Clin North Am ; 100(3): 507-521, 2020 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-32402297

RESUMO

Esophageal squamous cell carcinoma and adenocarcinoma account for 95% of all esophageal malignancies. The rates of esophageal adenocarcinoma have increased in Western countries, making it the predominant type of esophageal cancer. Treatment of both types of cancer has transformed to a more minimally invasive approach, with endoscopic methods being used for superficial cancers and more frequent use of video-assisted and laparoscopic modalities for locally advanced tumors. The current National Comprehensive Cancer Network guidelines advocate a trimodal approach to treatment, with neoadjuvant chemoradiation and surgery for locally advanced cancers.


Assuntos
Adenocarcinoma/cirurgia , Carcinoma de Células Escamosas/cirurgia , Neoplasias Esofágicas/cirurgia , Junção Esofagogástrica/cirurgia , Adenocarcinoma/patologia , Esôfago de Barrett/complicações , Carcinoma de Células Escamosas/patologia , Terapia Combinada , Progressão da Doença , Detecção Precoce de Câncer , Neoplasias Esofágicas/patologia , Esofagectomia/métodos , Junção Esofagogástrica/patologia , Esofagoscopia/métodos , Feminino , Refluxo Gastroesofágico/complicações , Humanos , Masculino , Procedimentos Cirúrgicos Minimamente Invasivos/métodos , Gradação de Tumores , Estadiamento de Neoplasias , Prognóstico , Fatores de Risco
19.
Acad Med ; 95(10): 1515-1520, 2020 10.
Artigo em Inglês | MEDLINE | ID: mdl-31972674

RESUMO

As academic medical centers and academic health centers continue to adapt to the changing landscape of medicine in the United States, the definition of what it means to be faculty must evolve as well. Both institutional economic priorities and the need to recalibrate educational programs to address current and future societal and patient needs have brought new complexity to faculty identity, faculty value, and the educational mission.The Council of Faculty and Academic Societies, 1 of 3 membership councils of the Association of American Medical Colleges (AAMC), established working groups in 2014 to provide a strong voice for academic faculty within the AAMC governance and leadership structures. The Faculty Identity and Value Working Group was charged with identifying the attributes and qualities of future academic medicine faculty in light of the transformational changes occurring at many medical schools and teaching hospitals. The working group developed a framework that could be applied throughout the United States by AAMC member schools to define and value teaching activities. This report adds to the work of others by offering a contemporary construct that is flexible and easily adaptable to enable fair and transparent implementation of an education value system; it is especially relevant for systems in which mergers and acquisitions lead to a large number of clinicians. An example of such an implementation at a large and growing academic medical center is provided.The ability to identify and quantify educational effort by faculty could be transformative by highlighting the fundamental importance of faculty to the development of the future medical workforce.


Assuntos
Docentes de Medicina/organização & administração , Inovação Organizacional , Faculdades de Medicina/organização & administração , Humanos , Sociedades Médicas , Estados Unidos
20.
BMJ Qual Saf ; 29(3): 232-237, 2020 03.
Artigo em Inglês | MEDLINE | ID: mdl-31540969

RESUMO

BACKGROUND: Socioeconomic status affects surgical outcomes, however these factors are not included in clinical quality improvement data and risk models. We performed a prospective registry analysis to determine if the Distressed Communities Index (DCI), a composite socioeconomic ranking by zip code, could predict risk-adjusted surgical outcomes and resource utilisation. METHODS: All patients undergoing surgery (n=44,451) in a regional quality improvement database (American College of Surgeons-National Surgical Quality Improvement Program ACS-NSQIP) were paired with DCI, ranging from 0-100 (low to high distress) and accounting for unemployment, education level, poverty rate, median income, business growth and housing vacancies. The top quartile of distress was compared to the remainder of the cohort and a mixed effects modeling evaluated ACS-NSQIP risk-adjusted association between DCI and the primary outcomes of surgical complications and resource utilisation. RESULTS: A total of 9369 (21.1%) patients came from severely distressed communities (DCI >75), who had higher rates of most medical comorbidities as well as transfer status (8.4% vs 4.8%, p<0.0001) resulting in higher ACS-NSQIP predicted risk of any complication (8.0% vs 7.1%, p<0.0001). Patients from severely distressed communities had increased 30-day mortality (1.8% vs 1.4%, p=0.01), postoperative complications (9.8% vs 8.5%, p<0.0001), hospital readmission (7.7 vs 6.8, p<0.0001) and resource utilisation. DCI was independently associated with postoperative complications (OR 1.07, 95% CI 1.04 to 1.10, p<0.0001) as well as resource utilisation after adjusting for ACS-NSQIP predicted risk CONCLUSION: Increasing Distressed Communities Index is associated with increased postoperative complications and resource utilisation even after ACS-NSQIP risk adjustment. These findings demonstrate a disparity in surgical outcomes based on community level socioeconomic factors, highlighting the continued need for public health innovation and policy initiatives.


Assuntos
Aceitação pelo Paciente de Cuidados de Saúde/estatística & dados numéricos , Complicações Pós-Operatórias/epidemiologia , Pobreza/estatística & dados numéricos , Características de Residência/estatística & dados numéricos , Adulto , Idoso , Idoso de 80 Anos ou mais , Estudos de Coortes , Bases de Dados Factuais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Melhoria de Qualidade , Sistema de Registros , Risco Ajustado , Fatores de Risco , Fatores Socioeconômicos , Estados Unidos/epidemiologia , Populações Vulneráveis
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