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1.
Pathology ; 52(4): 410-420, 2020 Jun.
Article in English | MEDLINE | ID: mdl-32359774

ABSTRACT

We sought to review the prevalence of EGFR T790M and other EGFR mutations associated with either proven or probable tyrosine kinase inhibitor (TKI) resistance in the Australasian lung cancer population and to perform histopathological correlation in a subset of cases. Retrospective statistical analysis was performed on a set of targeted lung cancer gene mutation tests (FIND IT gene panel) performed at Sonic Healthcare during 2018 and early 2019. A total of 1833 lung adenocarcinoma tumour samples underwent somatic mutation testing. EGFR mutations were found in 28% (n=514) of patients, in whom 9.3% (n=48) T790M mutations were present (always combined with other EGFR mutations) and 4.8% (n=25) exon 20 insertions were found. We also compared the prevalence of EGFR mutations identified in our population with that of the four largest publicly available lung cancer cohorts (total n=576 samples). Finally, a subset of 38 samples of primary/and or metastatic lung adenocarcinomas from 23 patients, including five with serial biopsies, underwent detailed morphological analysis. No reproducible morphological correlates were found to be associated with T790M, exon 20 resistance mutations or rarer co-occurring EGFR mutations. Although this may be subject to referral bias towards patients with resistant disease, the incidence of EGFR and T790M mutations is higher in this series from an Australasian population than in other similar publicly available lung adenocarcinoma cohorts. We conclude that histopathological features cannot be used to predict the acquisition of EGFR resistance.


Subject(s)
Adenocarcinoma of Lung/genetics , Drug Resistance, Neoplasm/genetics , Lung Neoplasms/genetics , Adenocarcinoma of Lung/pathology , Aged , Aged, 80 and over , Australia/epidemiology , ErbB Receptors/genetics , Female , Genes, erbB-1 , Humans , Lung Neoplasms/pathology , Male , Middle Aged , Mutation , Prevalence , Retrospective Studies
2.
3.
Surgery ; 167(3): 532-534, 2020 Mar.
Article in English | MEDLINE | ID: mdl-31327467

ABSTRACT

Owing to increasing external pressures on both faculty and learners, the practice of bedside teaching is declining. The objective of this paper is to provide an overview of educational strategies to foster bedside teaching in the current clinical practice environment for surgical educators. General strategies include building a culture within the program that promotes the atmosphere of a learning community, and providing scaffolding for trainees that fosters gradual progression to autonomous practice. Specific techniques for bedside teaching include CAMEO, the "one-minute preceptor", and mini-presentations or peer-teaching. The intentional and proactive implementation of these strategies alongside others can assist educators in capturing the "redeemable moments" that occur in the course of routine clinical care at the patient's bedside.


Subject(s)
Internship and Residency/methods , Learning , Specialties, Surgical/education , Teaching , Educational Measurement/methods , Faculty , Humans , Peer Group
4.
Ann Surg ; 270(2): 257-269, 2019 08.
Article in English | MEDLINE | ID: mdl-31306156

ABSTRACT

OBJECTIVE: The aim of the study was to identify and evaluate scholarship in multi-institutional interventional surgical education trials. SUMMARY BACKGROUND DATA: Most research on interventions in surgical education occurs at individual institutions. These studies typically involve a small number of learners in a unique environment, thereby limiting their generalizability. The status of multi-institutional studies in surgical education remains unknown. METHODS: We searched the Pubmed, ERIC, PsycINFO, SCOPUS, and CINAHL databases for all English language articles published from January 1, 2000 to December 31, 2015 using the keywords "medical education," "surgical education," "multi-institutional," "multi-center," and related terms. Articles published in an English language peer-reviewed journal that described an educational intervention conducted at more than one institution and involving surgeons were included. RESULTS: Of 3511 identified articles, 53 met criteria for full-text review and inclusion in this review. The median number of institutional sites was 4, with a range of 2 to 54. The 2 most common areas of focus were technical skills (43% of studies) and clinical knowledge (32% of studies). These were also the 2 most commonly measured outcomes (technical skills 32% of studies, clinical knowledge 21% of studies). Thirteen percentage of studies measured only learner attitudes and perceptions rather than learning outcomes. CONCLUSIONS: Multi-institutional surgical education studies do not uniformly incorporate characteristics of high quality research, particularly related to study design, measurable outcomes, and assessment tools used. Coordinated support, including grant funding, that addresses the challenging nature of multi-institutional surgical education research may improve the quality of these studies.


Subject(s)
Clinical Competence , Education, Medical/methods , General Surgery/education , Humans , Learning
5.
J Surg Educ ; 76(2): 378-386, 2019.
Article in English | MEDLINE | ID: mdl-30253983

ABSTRACT

OBJECTIVE: To evaluate trends in surgical resident exposure to complex oncologic procedures in order to determine whether additional fellowship training is necessary. DESIGN: An observational study of national Accreditation Council for Graduate Medical Education case log statistical reports was conducted to determine the average number of cases for selected oncology-relevant procedures completed during training. Linear regression and Cusick trend tests were used to assess temporal trends with the null hypothesis assuming an estimated slope of zero. Instrumental variable estimation was used to study the effect of duty-hour restrictions on oncologic cases per year. SETTING: United States general surgery residency training programs. PARTICIPANTS: Graduating surgical residents completing their training between 2000 and 2016. RESULTS: Across the study interval, mean case volume was 950.6 ± 29.7 (standard deviation) cases with 38.9 ± 3.1 complex oncologic cases per graduating resident. Decreasing trends were noted for average exposure to lymphadenectomies (-7.8 cases/decade; 95% confidence interval [CI] -8.8 to -6.8) and low rectal procedures (-0.9 cases/decade; 95% CI -1.2 to -0.6). There was no clinically important change in complex soft-tissue resections and foregut cases. A significant increase was seen in number of hepatopancreaticobiliary procedures (+3.9 cases/decade; 95% CI 3.1-4.7). Using instrumental variable estimation, there was a modest decline in cancer-relevant cases by 5.0 cases/decade (95% CI 4.5-5.6), while there was an increase in 38.5 total cases/decade (95% CI 10.4-66.7) associated with duty-hour restrictions. CONCLUSIONS: Case numbers for several complex oncologic procedures remain low, justifying a need for further fellowship training depending on individual resident experience.


Subject(s)
General Surgery/education , Internship and Residency , Medical Oncology/education , Humans , Internship and Residency/methods , Internship and Residency/trends , Neoplasms/surgery , Retrospective Studies , United States
6.
Surgery ; 163(4): 901-905, 2018 04.
Article in English | MEDLINE | ID: mdl-29395237

ABSTRACT

BACKGROUND: The VARK model categorizes learners by preferences for 4 modalities: visual, aural, read/write, and kinesthetic. Previous single-institution studies found that VARK preferences are associated with academic performance. This multi-institutional study was conducted to test the hypothesis that the VARK learning preferences of residents differ from the general population and that they are associated with performance on the American Board of Surgery In-Training Examination (ABSITE). METHODS: The VARK inventory was administered to residents at 5 general surgery programs. The distribution of the VARK preferences of residents was compared with the general population. ABSITE results were analyzed for associations with VARK preferences. χ2, Analysis of variance, and multiple linear regression were used for statistical analysis. RESULTS: A total of 132 residents completed the VARK inventory. The distribution of the VARK preferences of residents was different than the general population (P < .001). The number of aural responses on the VARK inventory was an independent predictor of ABSITE percentile rank (P = .03), percent of questions correct (P = .01), and standard score (P = .01). CONCLUSION: This study represents the first multi-institutional study to examine VARK preferences among surgery residents. The distribution of preferences among residents was different than that of the general population. Residents with a greater number of aural responses on VARK had greater ABSITE scores. The VARK model may have potential to improve learning efficiency among residents.


Subject(s)
General Surgery/education , Internship and Residency , Learning , Surgeons/psychology , Educational Measurement , Female , Humans , Linear Models , Male , Models, Educational , Retrospective Studies , United States
7.
Surgery ; 161(6): 1633-1641, 2017 06.
Article in English | MEDLINE | ID: mdl-28027818

ABSTRACT

BACKGROUND: Laparoscopic surgery for colon cancer has been demonstrated in clinical trials to have short-term benefits when compared to the open surgical approach. Guidelines of the National Comprehensive Cancer Network recommend that patients with stage III or high-risk stage II colon cancer undergo adjuvant chemotherapy. We hypothesized that laparoscopic colectomy is associated with increased compliance to recommendations for chemotherapy, a lesser time to start of chemotherapy, and increased overall survival. METHODS: The National Cancer Data Base was queried to identify patients with stage III or high-risk stage II colon cancer (T4, positive margins, <12 lymph nodes, or high tumor grade) diagnosed 2010-2012. Patients were divided into laparoscopic colectomy and open colectomy groups. Intent-to-treat analysis was used with converted cases included in the laparoscopic colectomy group. Rates of receiving adjuvant chemotherapy, time from diagnosis and date of operation to start of chemotherapy, and overall survival were compared. RESULTS: A total of 48,257 patients were included for analysis; 18,801 patients underwent laparoscopic colectomy and 29,456 underwent open colectomy. Laparoscopic colectomy patients received adjuvant chemotherapy at a somewhat greater rate than open colectomy (66.2% vs 59.4%, P < .01). Among patients who received chemotherapy, mean time to start of chemotherapy after definitive resection was somewhat less for laparoscopic colectomy than open colectomy (48.7 vs 52.7 days, P < .01). Two-year overall survival was greater for laparoscopic colectomy than open colectomy (81.9% vs 73.2%, P < .01). CONCLUSION: Compared to open colectomy, laparoscopic colectomy is associated with somewhat greater rates of compliance with guidelines for adjuvant chemotherapy for stage III and high-risk stage II colon cancer, as well as a slightly lesser time to start of chemotherapy and improved overall survival.


Subject(s)
Colonic Neoplasms/drug therapy , Colonic Neoplasms/surgery , Guideline Adherence/statistics & numerical data , Laparoscopy/mortality , Laparotomy/mortality , Adenocarcinoma/drug therapy , Adenocarcinoma/mortality , Adenocarcinoma/pathology , Adenocarcinoma/surgery , Adult , Aged , Aged, 80 and over , Chemotherapy, Adjuvant , Colectomy/methods , Colectomy/mortality , Colonic Neoplasms/mortality , Colonic Neoplasms/pathology , Databases, Factual , Disease-Free Survival , Female , Humans , Laparoscopy/methods , Laparotomy/methods , Logistic Models , Male , Middle Aged , Neoplasm Invasiveness/pathology , Neoplasm Staging , Practice Guidelines as Topic , Prognosis , Retrospective Studies , Risk Assessment , Survival Rate
8.
J Surg Educ ; 73(6): e136-e141, 2016.
Article in English | MEDLINE | ID: mdl-27424095

ABSTRACT

BACKGROUND: Learning styles theory posits that learners have distinct preferences for how they assimilate new information. The VARK model categorizes learners based on combinations of 4 learning preferences: visual (V), aural (A), read/write (R), and kinesthetic (K). A previous single institution study demonstrated that the VARK preferences of applicants who interview for general surgery residency are different from that of the general population and that learning preferences were associated with performance on standardized tests. This multiinstitutional study was conducted to determine the distribution of VARK preferences among interviewees for general surgery residency and the effect of those preferences on United States Medical Licensing Examination (USMLE) scores. METHODS: The VARK learning inventory was administered to applicants who interviewed at 3 general surgery programs during the 2014 to 2015 academic year. The distribution of VARK learning preferences among interviewees was compared with that of the general population of VARK respondents. Performance on USMLE Step 1 and Step 2 Clinical Knowledge was analyzed for associations with VARK learning preferences. Chi-square, analysis of variance, and Dunnett's test were used for statistical analysis, with p < 0.05 considered statistically significant. RESULTS: The VARK inventory was completed by a total of 140 residency interviewees. Sixty-four percent of participants were male, and 41% were unimodal, having a preference for a single learning modality. The distribution of VARK preferences of interviewees was different than that of the general population (p = 0.02). By analysis of variance, there were no overall differences in USMLE Step 1 and Step 2 Clinical Knowledge scores by VARK preference (p = 0.06 and 0.21, respectively). However, multiple comparison analysis using Dunnett's test revealed that interviewees with R preferences had significantly higher scores than those with multimodal preferences on USMLE Step 1 (239 vs. 222, p = 0.02). CONCLUSION: Applicants who interview for general surgery residency have a different pattern of VARK preferences than that of the general population. Interviewees with preferences for read/write learning modalities have higher scores on the USMLE Step 1 than those with multimodal preferences. Learning preferences may have impact on residency applicant selection and represents a topic that warrants further investigation.


Subject(s)
Education, Medical, Graduate/methods , General Surgery/education , Interviews as Topic , Learning , Adult , Career Choice , Clinical Competence , Female , Humans , Male , Personal Satisfaction , United States
9.
Am Surg ; 82(3): 243-50, 2016 Mar.
Article in English | MEDLINE | ID: mdl-27099061

ABSTRACT

The aim of our study is to evaluate the effectiveness of newly implemented general surgery intern boot camp. A 2-day didactic and skills-based intern boot camp was implemented before the start of clinical duties. Participants who did not attend all boot camp activities and had prior postgraduate training were excluded. A survey utilizing a 5-point Likert scale scoring system was used to assess the participants' confidence to perform intern-level tasks before and after the boot camp. Subgroup analyses were performed comparing changes in confidence among graduates from home institution versus others and general surgery versus other subspecialties. In the analysis, 21 participants over two years were included. Among them, 7 were graduates from home institution (4 general surgery, 3 subspecialty) and 14 were from other institutions (6 general surgery and 8 subspecialty). There were significant increases in overall confidence levels (pre = 2.79 vs post = 3.43, P < 0.001) after the boot camp. Additionally, there were improvements for all subcategories including medical knowledge (2.65 vs 3.36, P < 0.001), technical skill (3.02 vs 3.51, P < 0.001), interpersonal skills and communication (3.04 vs 3.53, P = 0.001), and practice-based learning (2.65 vs 3.41, P = 0.001). There was an improvement in confidence level for both home institution graduates (2.89 vs 3.53, P = 0.022) and other graduates (2.74 vs 3.34, P < 0.001). Similarly, participants from general surgery (2.78 vs 3.46, P = 0.001) and other specialties (2.74 vs 3.34, P < 0.001) reported significant improvement in confidence. General surgery intern boot camp before the start of official rotation is effective in improving confidence level in performing level-appropriate tasks of the incoming new interns.


Subject(s)
Clinical Competence , General Surgery/education , Internship and Residency/standards , Humans
10.
Am J Surg ; 211(2): 476-481.e3, 2016 Feb.
Article in English | MEDLINE | ID: mdl-26701698

ABSTRACT

BACKGROUND: The interview is one of the most important factors in selecting candidates for general surgery residency. There is significant research on best practices for conducting interviews. Blinded interviews and standardized questions improve interview utility and accuracy; however, their utilization in surgical residency programs is unclear. The purpose of this study was to determine the current practices of surgery residency programs in the interview process and the application of established best practices. METHODS: An online survey consisting of 26 questions was distributed to program directors of accredited surgery residency programs in the United States and Canada. RESULTS: Overall, 108 responses (40%) were received. The vast majority of programs (90%) reported basing at least 25% of their final ranking on the interview score. Only 22 (20%) programs reported using some form of blinding for their interviewers. Five programs (5%) reported using standardized interview questions. CONCLUSIONS: Few residency programs use blinded interviews or standardized questions. This may indicate a gap between research findings and practice and may represent an area for improvement in the resident selection process.


Subject(s)
Attitude of Health Personnel , General Surgery/education , Internship and Residency , School Admission Criteria , Canada , Guideline Adherence , Humans , Practice Guidelines as Topic , Program Evaluation , Surveys and Questionnaires , United States
11.
J Surg Res ; 198(1): 61-5, 2015 Sep.
Article in English | MEDLINE | ID: mdl-26070495

ABSTRACT

BACKGROUND: The learning style preferences of general surgery residents have been previously reported; there is evidence that residents who prefer read/write learning styles perform better on the American Board of Surgery In-Training Examination (ABSITE). However, little is known regarding the learning style preferences of applicants to general surgery residency and their impact on educational outcomes. In this study, the preferred learning styles of surgical residency applicants were determined. We hypothesized that applicant rank data are associated with specific learning style preferences. MATERIALS AND METHODS: The Fleming VARK learning styles inventory was offered to all general surgery residency applicants that were interviewed at a university hospital-based program. The VARK model categorizes learners as visual (V), aural (A), read/write (R), kinesthetic (K), or multimodal (MM). Responses on the inventory were scored to determine the preferred learning style for each applicant. Applicant data, including United States Medical Licensing Examination (USMLE) scores, class rank, interview score, and overall final applicant ranking, were examined for association with preferred learning styles. RESULTS: Sixty-seven applicants were interviewed. Five applicants were excluded due to not completing the VARK inventory or having incomplete applicant data. The remaining 62 applicants (92%) were included for analysis. Most applicants (57%) had a multimodal preference. Sixty-nine percent of all applicants had some degree of preference for kinesthetic learning. There were statistically significant differences between applicants of different learning styles in terms of USMLE step 1 scores (P = 0.001) and USMLE step 2 clinical knowledge scores (P = 0.01), but not for class ranks (P = 0.27), interview scores (P = 0.20), or final ranks (P = 0.14). Multiple comparison analysis demonstrated that applicants with aural preferences had higher USMLE 1 scores (233.2) than those with kinesthetic (211.8, P = 0.005) or multimodal (214.5, P = 0.008) preferences, whereas applicants with visual preferences had higher USMLE 1 scores (230.0) than those with kinesthetic preferences (P = 0.047). Applicants with aural preferences also had higher USMLE 2 scores (249.6) than those with kinesthetic (227.6, P = 0.006) or multimodal (230.1, P = 0.008) preferences. CONCLUSIONS: Most applicants to general surgery residency have a multimodal learning style preference. Learning style preferences are associated with higher USMLE step 1 and step 2 scores, in particular for applicants with aural preferences. Students who performed well in lecture-dominated medical school environments because of their aural preferences could be at a disadvantage in the more independent, reading-focused learning environments of surgical residency.


Subject(s)
General Surgery/education , Internship and Residency , Learning , Female , Humans , Male
12.
J Surg Res ; 198(2): 371-6, 2015 Oct.
Article in English | MEDLINE | ID: mdl-25959832

ABSTRACT

BACKGROUND: Obesity has been associated with poor prognosis in breast cancer. However, most previous studies examined populations with relatively low proportions of obese patients. Given that forecasts predict obesity rates to exceed 50% by 2030, it is important to examine breast cancer outcomes in populations with higher rates of obesity. We hypothesized that obesity, as measured by body mass index (BMI), is associated with decreased overall survival and disease-free survival in patients with invasive breast cancer in a population with a high prevalence of obesity. METHODS: A retrospective review of a prospectively maintained database was conducted on patients treated for invasive breast cancer at an academic medical center between 1997 and 2013. BMI was calculated from each patient's height and weight at the time of diagnosis. Patients were categorized as normal (BMI <25 kg/m(2)), overweight (BMI 25-30 kg/m(2)), or obese (BMI >30 kg/m(2)), as per the definitions established by the World Health Organization. The end points of overall survival and disease-free survival were analyzed. RESULTS: A total of 523 patients with invasive breast cancer were included for analysis. Based on BMI, 87 (16%) were categorized as normal, 150 (29%) were overweight, and 286 (55%) were obese. The median follow-up was 49 mo. There were 16 deaths (18.4%) in normal patients, 25 (16.7 %) in overweight patients, and 45 (15.7%) in obese patients (P = 0.84). By Kaplan-Meier survival analysis, there were no differences in overall survival (P = 0.49) or in disease-free survival (P = 0.33) among the three groups. CONCLUSIONS: Obesity is not associated with decreased overall or disease-free survival in a patient population with a high prevalence of obesity. These findings suggest that there may be other factors that contribute to the poor prognosis of obese breast cancer patients observed in populations with lower rates of obesity.


Subject(s)
Breast Neoplasms/complications , Obesity/complications , Body Mass Index , Breast Neoplasms/mortality , Female , Humans , Louisiana/epidemiology , Middle Aged , Obesity/epidemiology , Prevalence , Retrospective Studies
13.
J Surg Educ ; 72(4): 726-31, 2015.
Article in English | MEDLINE | ID: mdl-25648283

ABSTRACT

BACKGROUND: There is a growing body of literature that suggests that learners assimilate information differently, depending on their preferred learning style. The VARK model categorizes learners as visual (V), aural (A), read/write (R), kinesthetic (K), or multimodal (MM). We hypothesized that resident VARK learning style preferences and American Board of Surgery In-Training Examination (ABSITE) performance are associated. METHODS: The Fleming VARK learning styles inventory was administered to all general surgery residents at a university hospital-based program each year to determine their preferred learning style. Resident scores from the 2012 and 2013 ABSITE were examined to identify any correlation with learning style preferences. RESULTS: Over a 2-year period, residents completed 53 VARK inventory assessments. Most (51%) had a multimodal preference. Dominant aural and read/write learners had the lowest and highest mean ABSITE scores, respectively (p = 0.03). CONCLUSION: Residents with dominant read/write learning preferences perform better on the ABSITE than their peers did, whereas residents with dominant aural learning preferences underperform on the ABSITE. This may reflect an inherent and inadvertent bias of the examination against residents who prefer to learn via aural modalities.


Subject(s)
Education, Medical, Graduate/methods , Educational Measurement , General Surgery/education , Internship and Residency , Learning , Female , Humans , Male , Surveys and Questionnaires , United States
14.
J Surg Educ ; 72(3): 418-29, 2015.
Article in English | MEDLINE | ID: mdl-25456409

ABSTRACT

OBJECTIVE: To systematically review the published literature on the effectiveness of interventions intended to improve residents' American Board of Surgery In-Training Examination (ABSITE) performances. DESIGN: A systematic review was conducted by 2 independent investigators to identify all publications that examined the effect of specific interventions on residents' ABSITE performances from 1975 to 2013. RESULTS: Overall, 26 published articles met study criteria. Structured reading programs and setting clear expectations with mandatory remedial programs were consistently effective in improving ABSITE performance, whereas the effect of didactic teaching conferences and problem-based learning groups was mixed. There was marked heterogeneity in the usage of study designs and reporting of results. CONCLUSIONS: Structured reading programs and mandatory remedial programs appear to be consistently effective measures that can improve residents' ABSITE performances. There is a need for improved study design and reporting in future research conducted in this field.


Subject(s)
Education, Medical, Graduate/methods , Educational Measurement , General Surgery/education , Specialty Boards , Humans , Internship and Residency , United States
15.
Radiographics ; 34(7): 1873-84, 2014.
Article in English | MEDLINE | ID: mdl-25384289

ABSTRACT

Postoperative imaging findings contribute to the diagnosis of successful and failed fundoplication procedures. Gastroesophageal reflux disease, a common illness in the United States, is primarily treated medically but may require surgery if there are persistent symptoms or reflux complications despite medical treatment. Laparoscopic Nissen fundoplication has become the most used and successful surgical antireflux procedure since its introduction in 1991. Radiologists should understand the anatomy of the esophagogastric junction, antireflux and esophageal protective mechanisms, and preoperative radiologic findings that contribute to selection of the surgical technique, as well as the most commonly used antireflux operations and their indications. Barium examination and computed tomography of the thorax and abdomen play an important role in the follow-up of patients with gastric fundoplication, including evaluation of surgical effectiveness and detection and characterization of postoperative complications. Failed fundoplications are classified into six types: tight Nissen, incompetent repair, disruption of the wrap, stomach slippage above the diaphragm, slipped Nissen, and transdiaphragmatic wrap herniation. Classification is based on radiologic visualization of the obstructed esophageal lumen, recurrence of gastroesophageal reflux, integrity and location of the gastric wrap, stomach slippage, and recurrence of hiatal hernia. Imaging findings are useful in detecting complications, providing anatomic information to identify the cause of surgical failure, and selecting appropriate medical or surgical management.


Subject(s)
Fundoplication , Gastroesophageal Reflux/diagnostic imaging , Gastroesophageal Reflux/surgery , Postoperative Complications/diagnostic imaging , Tomography, X-Ray Computed/methods , Barium Sulfate , Contrast Media , Humans , Reoperation , Treatment Failure
16.
J Am Coll Surg ; 218(4): 663-71, 2014 Apr.
Article in English | MEDLINE | ID: mdl-24491247

ABSTRACT

BACKGROUND: Molecular events impact systemic dissemination. Overexpression of eukaryotic initiation factor 4E (eIF4E) has been shown to predict worse clinical outcomes in breast cancer. Node-positive breast cancer patients were specifically studied to determine if eIF4E elevation increases risk for systemic dissemination. STUDY DESIGN: Two hundred two node-positive breast cancer patients were prospectively accrued and treated with standardized treatment and surveillance protocol. Tumor eIF4E protein level was quantified by Western blots as x-fold over benign samples from noncancer patients. Primary end point was systemic metastasis. RESULTS: Systemic recurrence was detected in 22.2% of the low eIF4E group, 27.3% of the intermediate group, and 49% of the high group, at a median follow-up of 47 months. A greater risk for systemic metastasis was seen in the high eIF4E group compared with the low group (log-rank test, p = 0.0084). Patients in the high eIF4E group had a 1.5-fold (hazard ratio = 1.52; 95% CI, 1.07-2.17; p = 0.0206) higher risk for systemic metastasis than the low group. Sixty percent of the patients with high eIF4E were observed to have metastasis to multiple sites, compared with 50% in the intermediate group, and 14.5% in the low group (p = 0.02, Fisher's exact test). When patients were segregated based on nodal classification (N1, N2, and N3), eIF4E overexpression continued to be a predictor for systemic dissemination in patients with N1 disease. CONCLUSIONS: High eIF4E is correlated with an increased risk for systemic metastasis in node-positive breast cancer patients. High eIF4E overexpression was associated with a higher incidence of metastasis to multiple sites. Therefore, high eIF4E overexpression appears to be a marker for molecular events that increases risk for systemic dissemination.


Subject(s)
Biomarkers, Tumor/metabolism , Breast Neoplasms/pathology , Eukaryotic Initiation Factor-4E/metabolism , Blotting, Western , Breast Neoplasms/metabolism , Breast Neoplasms/mortality , Breast Neoplasms/therapy , Combined Modality Therapy , Female , Follow-Up Studies , Humans , Lymphatic Metastasis , Middle Aged , Neoplasm Metastasis , Neoplasm Staging , Prospective Studies , Risk , Survival Analysis
17.
J Surg Sci ; 2(1): 18-24, 2014 Dec.
Article in English | MEDLINE | ID: mdl-25705707

ABSTRACT

BACKGROUND: Pulmonary metastasectomy is an acceptable treatment option in various metastatic lesions. The role of minimally invasive surgery for metastasectomy remains controversial. We report on a recently described hybrid video-assisted thoracoscopic surgery (hVATS) technique in the community hospital setting. METHODS: Using a retrospective study design, data on 61 patients undergoing 67 resections between April 2000 and January 2008 was collected at a single institution. Patient demographics, pathology, and clinical outcome data were recorded. Kaplan Meier estimates and multivariate Cox regression were used to assess survival and prognostic factors, respectively. RESULTS: Mean patient age was 61.7 years. The majority of lesions were solitary, unilateral, and genitourinary or gastrointestinal in origin (69%). R0 resection was achieved in 97% of cases with the most common operation being lobectomy. Mean length of stay was 4.4 days. Mean follow-up was 39.7 months and 5-year overall survival was 63.2% for the cohort; median survival was not reached. The number of lesions (univariate only) and tumor size over 4 cm influenced overall survival. CONCLUSIONS: Hybrid VATS is a safe and feasible technique in the community medical center setting and warrants additional investigation as an alternative strategy in the management of pulmonary metastases.

18.
J Surg Educ ; 70(6): 720-4, 2013.
Article in English | MEDLINE | ID: mdl-24209647

ABSTRACT

OBJECTIVE: To determine if vacations in January or on-call status have an effect on American Board of Surgery In-Training Examination (ABSITE) scores. DESIGN: Retrospective review of the performance of general surgery residents on ABSITE. Data collected included ABSITE scores, United States Medical Licensing Examination Step 2 scores, January vacation schedules, and call schedules. ABSITE performance was examined for correlation with vacation or call schedules. Student t test was used for statistical analysis, with a p value of less than 0.05 considered significant. SETTING: General surgery residency program at the Louisiana State University Health Sciences Center-Shreveport, a university hospital-based program with 5 categorical residents per year. PARTICIPANTS: Postgraduate year (PGY) 1 through 5 general surgery categorical residents from 2006 to 2012. RESULTS: A total of 170 ABSITE scores from 55 residents were reviewed. The mean score when vacation was taken was 48.6 as compared with 36.3 when no vacation was taken (p = 0.02). Residents who took a January vacation at least once in their residency had a mean score of 42.8 as compared with 37.7 of those who did not (p = 0.43). The mean United States Medical Licensing Examination Step 2 score of residents who took a January vacation at least once in their residency was 218 as compared with 217 for their peers (p = 0.78). Among residents who took January vacations, the mean score in the years they took vacation was 49.4 as compared with 35.4 in the years they did not (p = 0.02). Prior night call status had no effect on the examination scores (44.2 vs 38.6, p = 0.30). CONCLUSIONS: Mean ABSITE scores were higher for residents who took a January vacation before the examination, despite no apparent difference in baseline test-taking ability. Among residents who took January vacations, mean scores were higher in the years they took vacation than in other years. On-call status did not have an effect on ABSITE performance. Vacation schedules in January can have a significant effect on ABSITE scores.


Subject(s)
Accreditation , After-Hours Care/statistics & numerical data , Educational Measurement , General Surgery/education , Internship and Residency/organization & administration , Leisure Activities , Academic Medical Centers , Adult , Education, Medical, Graduate/organization & administration , Female , Hospitals, University , Humans , Louisiana , Male , Retrospective Studies , Seasons , Test Taking Skills
19.
Anticancer Res ; 33(9): 3867-9, 2013 Sep.
Article in English | MEDLINE | ID: mdl-24023321

ABSTRACT

AIM: To determine whether morbidly obese (MO) patients with early-stage breast cancer (BCa) benefit from standard-of-care interventions. PATIENTS AND METHODS: Between 1992 and 2005, 100 patients underwent breast-conserving surgery and postoperative whole-breast irradiation of 50 Gy for minimally invasive BCa with tumor-free surgical margins. Twenty-seven MO women were compared to 73 non-morbidly obese (NMO) patients. RESULTS: At 10 years, the cumulative disease-free survival rate for the NMO patients was 91% compared to the non-statistically significant lower rate of 89% in the MO women (p=0.66). Patients who were excessively obese were not at an increased risk for local (p=0.99) or regional disease recurrence (p=0.29). CONCLUSION: The results suggest that patients with minimally invasive BCa and excessively large body habitus should not be disqualified from receiving breast-conserving therapy.


Subject(s)
Breast Neoplasms/surgery , Mastectomy, Segmental/methods , Obesity, Morbid/complications , Adult , Aged , Aged, 80 and over , Breast Neoplasms/complications , Breast Neoplasms/physiopathology , Disease-Free Survival , Female , Humans , Middle Aged , Neoplasm Recurrence, Local , Retrospective Studies
20.
Surg Laparosc Endosc Percutan Tech ; 23(3): e138-40, 2013 Jun.
Article in English | MEDLINE | ID: mdl-23752024

ABSTRACT

A 45-year-old female who presented with nausea, vomiting, abdominal pain, and anemia was found to have an 8 × 5 × 5 cm ileal tumor on CT imaging. Laparoscopic evaluation and small bowel resection was performed with clear margins with a diagnosis of low-grade leiomyosarcoma. Small intestine leiomyosarcoma is very rare, and there are no prior reports of laparoscopic resection.


Subject(s)
Ileal Neoplasms/surgery , Laparoscopy/methods , Leiomyosarcoma/surgery , Diagnosis, Differential , Endoscopy, Gastrointestinal , Female , Humans , Ileal Neoplasms/diagnosis , Leiomyosarcoma/diagnosis , Middle Aged , Tomography, X-Ray Computed
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