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Martha Godfrey, Alexandra A Rosser, Carla M Pugh, David Williamson Shaffer, Ajit K Sachdeva, Sarah A Jung
BACKGROUND: Interest is growing in simulation-based continuing medical education courses for practicing surgeons. However, little research has explored the instruction employed during these courses. This study examines instruction practices used during an annual simulation-based continuing medical education course. METHODS: Audio-video data were collected from surgeon instructors (n = 12) who taught a simulated laparoscopic hernia repair continuing medical education course across 2 years...
March 12, 2019: Surgery
Yi-Ming Shyr
No abstract text is available yet for this article.
March 12, 2019: Surgery
Kfir Ben-David, Ryan M Thomas
No abstract text is available yet for this article.
March 12, 2019: Surgery
Hengqiang Zhao, Tao Huang, Hehe Li
BACKGROUND: Lymph node metastases from papillary thyroid cancer is believed to disseminate sequentially, first to the central neck and later to the lateral neck. Skip metastases of papillary thyroid cancer, however, are defined as lateral lymph node metastasis without central lymph node metastasis. The aim of this study was to investigate the risk factors for skip metastases and lateral lymph node metastasis of papillary thyroid cancer. METHODS: We reviewed 721 papillary thyroid cancer patients undergoing total thyroidectomy with central lymph node dissection and lateral lymph node dissection during 2013 to 2018...
March 12, 2019: Surgery
Marta L McCrum, Brian Leroux, Tingzhi Fang, Eileen Bulger, Sam Arbabi, Charles E Wade, Erin Fox, John B Holcomb, Bryce Robinson
BACKGROUND: Women are underrepresented in trauma research, and aggregated results of clinical trials may mask effects that differ by sex. It is unclear whether women respond differently to severe hemorrhage compared with men. We sought to evaluate sex-based differences in outcomes after severe trauma with hemorrhage. METHODS: We performed a secondary analysis of the Pragmatic Randomized Optimal Platelet and Plasma Ratios trial. Trauma patients predicted to require massive transfusion were randomized to a 1:1:1 vs 1:1:2 plasma to platelet to red blood cell transfusion ratio...
March 11, 2019: Surgery
Lotte C Franken, Anne Marthe Schreuder, Eva Roos, Susan van Dieren, Olivier R Busch, Marc G Besselink, Thomas M van Gulik
BACKGROUND: Morbidity and mortality after hepatectomy for perihilar cholangiocarcinoma are known to be high. However, reported postoperative outcomes vary, with notable differences between Western and Asian series. We aimed to determine morbidity and mortality rates after major hepatectomy in patients with perihilar cholangiocarcinoma and assess differences in outcome regarding geographic location and hospital volume. METHODS: A systematic review was performed by searching the MEDLINE and EMBASE databases through November 20, 2017...
March 11, 2019: Surgery
Essa M Aleassa, Gareth Morris-Stiff
No abstract text is available yet for this article.
March 8, 2019: Surgery
Luca Gianotti, Marta Sandini
No abstract text is available yet for this article.
March 8, 2019: Surgery
Christopher P Childers, Melinda Maggard-Gibbons
No abstract text is available yet for this article.
March 8, 2019: Surgery
Amy E Liepert, Andrew J Velic, Brooks Rademacher, Allison A Blumenfeld, Elizabeth Bingman, Ann P O'Rourke, Sarah Sullivan
BACKGROUND: Mastery learning is an effective educational tool to assess basic procedural skill proficiency and may also be beneficial for more complex skills along the continuum of surgical training. In addition, anxiety and confidence have effects on cognitive and decision-making performance, both in educational and clinical settings. This study evaluates anxiety and confidence in a skills-level-appropriate mastery learning module for chest tube insertion in graduating medical students...
March 6, 2019: Surgery
Naoya Okada, Hiroyuki Daiko, Jun Kanamori, Ataru Sato, Yasumasa Horikiri, Takuji Sato, Hisashi Fujiwara, Toshifumi Tomioka, Takeo Fujita, Takashi Kojima, Satoshi Fujii
BACKGROUND: This study aimed to elucidate the impact of extranodal extension, pathologically assessed according to new diagnostic criteria, on the prognosis of esophageal squamous cell carcinoma. Extranodal extension has been shown to be a prognostic indicator for head and neck cancers; however, its utility in esophageal squamous cell carcinoma has not been demonstrated. METHODS: We enrolled 174 consecutive esophageal squamous cell carcinoma patients who had undergone esophagectomy with lymph node dissection in the three fields...
March 5, 2019: Surgery
Xiao-Long Li, Xiao-Dong Zhu, Hao Cai, Yan Li, Jian Zhou, Jia Fan, Zhao-You Tang, Hui-Chuan Sun
BACKGROUND: To investigate the prognostic values of the change of α-fetoprotein within 1 week after resection of hepatocellular carcinoma. METHODS: We retrospectively analyzed patients with hepatocellular carcinoma who underwent curative hepatectomy as primary therapy at Zhongshan Hospital, Fudan University (Shanghai, China) from 2009 to 2011. We measured serum α-fetoprotein before (α-fetoprotein0 ) and 1 week after (α-fetoprotein7 ) hepatectomy, calculated change of α-fetoprotein, namely the α-fetoprotein response by the formula: AR = lgAFP7 /lgAFP0 (lg = log10 ), analyzed the relationship between patient survival and α-fetoprotein response, and explored the potential clinical implications of the α-fetoprotein response...
March 4, 2019: Surgery
Sarah E Rudasill, Amit Iyengar, Yas Sanaiha, Habib Khoury, Alexandra L Mardock, Hanning Xing, Murray H Kwon, Curtis Hunter, Peyman Benharash
BACKGROUND: Malignancy is a relative contraindication in transplant candidates, given the increased neoplastic risk accompanying posttransplant immunosuppression. However, the number of patients receiving a lung transplant despite pretransplant malignancy is rising, and their outcomes remain unclear. Our purpose was to examine the outcomes of lung transplant recipients with pretransplant malignancy in the modern era. METHODS: We evaluated the United Network for Organ Sharing registry for adult lung transplants that were completed between June 2005 and September 2016...
February 28, 2019: Surgery
Michael G Sarr, Kevin E Behrns
No abstract text is available yet for this article.
February 26, 2019: Surgery
Tao Jiang, Yanhong Liu, Qiuming Meng, Xiangqi Lv, Ziyong Yue, Wengang Ding, Tianhua Liu, Xiaoguang Cui
BACKGROUND: Lung ischemia-reperfusion injury is a complex pathophysiologic process associated with high morbidity and mortality. We have demonstrated elsewhere that diabetes mellitus aggravated ischemia-induced lung injury. Oxidative stress and mitochondrial dysfunction are drivers of diabetic lung ischemia-reperfusion injury; however, the pathways that mediate these events are unexplored. In this study using a high-fat diet-fed model of streptozotocin-induced type 2 diabetes in rats, we determined the effect of hydrogen sulfide on lung ischemia-reperfusion injury with a focus on Sirtuin3 signaling...
February 26, 2019: Surgery
Ryosuke Nakano, Masahiro Ohira, Tsuyoshi Kobayashi, Kentaro Ide, Hiroyuki Tahara, Shintaro Kuroda, Seiichi Shimizu, Tomoki Kimura, Yasushi Nagata, Hiroshi Aikata, Kazuaki Chayama, Hideki Ohdan
No abstract text is available yet for this article.
February 22, 2019: Surgery
Guido Torzilli
No abstract text is available yet for this article.
February 20, 2019: Surgery
Michael G Bateman, William K Durfee, Tinen L Iles, Cindy M Martin, Kenneth Liao, Arthur G Erdman, Paul A Iaizzo
BACKGROUND: Three-dimensional printing is an additive manufacturing method that builds objects from digitally generated computational models. Core technologies behind three-dimensional printing are evolving rapidly with major advances in materials, resolution, and speed that enable greater realism and higher accuracy. These improvements have led to novel applications of these processes in the medical field. METHODS: The process of going from a medical image data set (computed tomography, magnetic resonance imaging, ultrasound) to a physical three-dimensional print includes several steps that are described...
February 18, 2019: Surgery
Meghan Brennan, Sahil Puri, Tezcan Ozrazgat-Baslanti, Zheng Feng, Matthew Ruppert, Haleh Hashemighouchani, Petar Momcilovic, Xiaolin Li, Daisy Zhe Wang, Azra Bihorac
BACKGROUND: Major postoperative complications are associated with increased cost and mortality. The complexity of electronic health records overwhelms physicians' abilities to use the information for optimal and timely preoperative risk assessment. We hypothesized that data-driven, predictive-risk algorithms implemented in an intelligent decision-support platform simplify and augment physicians' risk assessments. METHODS: This prospective, nonrandomized pilot study of 20 physicians at a quaternary academic medical center compared the usability and accuracy of preoperative risk assessment between physicians and MySurgeryRisk, a validated, machine-learning algorithm, using a simulated workflow for the real-time, intelligent decision-support platform...
February 18, 2019: Surgery
SuEllen J Pommier, Rosemary E Morgan, Kristen E Limbach, Cynthia M Jackson, Arpana M Naik, Jennifer L Peckham, Patrick J Muller, Mary E Condron, Nora E Jameson, Rodney F Pommier
BACKGROUND: Approximately 70% of breast cancer patients have residual disease after neoadjuvant chemotherapy. This study was designed to determine whether breast cancer cells with stemlike properties are present in residual disease after neoadjuvant chemotherapy and whether they exhibit oncogenic mutations. The presence of breast cancer cells with stemlike properties with specific mutations may help explain the poor prognosis associated with residual disease. METHODS: A total of 68 breast cancer specimens were collected at the time of mastectomy or lumpectomy...
February 15, 2019: Surgery
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