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https://www.readbyqxmd.com/read/29780731/the-resident-s-point-of-view-in-the-learning-curve-of-thymic-mis-why-should-i-learn-it
#1
REVIEW
Anna E Frick, Hans Van Veer, Herbert Decaluwé, Willy Coosemans, Dirk Van Raemdonck
Minimally invasive surgery (MIS) in thoracic surgery became quite popular during the last years. The aim of introducing and performing more MIS is to reduce surgical trauma, pain and complications in patients. Training in MIS increases operative time and thus cost in theatre but thus improves with experience. For a resident, the cases should be well selected with experienced supervision in a suitable setting with supporting staff and optimal instruments. Understanding the anatomy of the lung, using simulators, and attending workshops makes the learning curve shorter...
2018: Journal of Visualized Surgery
https://www.readbyqxmd.com/read/29780724/uniportal-vats-lobectomies-masterclass-in-bratislava
#2
Miroslav Janik, Peter Juhos
On February 5-6, an event on uniportal VATS approach to pulmonary resections took place in Bratislava. It focused on developing uniportal VATS technique. The two-day event gave opportunity to discuss the topic with masters of thoracic surgery such as Prof. Hasan Batirel and Diego Gonzalez, to train basic skills on simulators developed by Dr. Tomaz Stupnik and to watch live surgery performed by Diego Gonzalez. Two patients underwent uniportal VATS lobectomy. This event was another step to advance miniinvasive major pulmonary procedures...
2018: Journal of Visualized Surgery
https://www.readbyqxmd.com/read/29776819/corrective-osteotomy-for-hyperextended-elbow-with-limited-flexion-due-to-supracondylar-fracture-malunion
#3
Keiichiro Oura, Atsuo Shigi, Kunihiro Oka, Hiroyuki Tanaka, Tsuyoshi Murase
BACKGROUND: Extension deformity of the distal humerus after a malunited supracondylar fracture can restrict elbow flexion. Here we report a computer-assisted operative procedure and review the results of clinical cases in which corrective surgery was performed. METHODS: The medical records of the patients who underwent corrective osteotomy for hyperextended elbow malunion of the distal humerus with limited elbow flexion (flexion angle ≤100°) were reviewed retrospectively...
May 15, 2018: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/29774638/loss-of-sirtuin-1-and-mitofusin-2-contributes-to-enhanced-ischemia-reperfusion-injury-in-aged-livers
#4
Sung Kook Chun, Sooyeon Lee, Joseph Flores-Toro, Rebecca Y U, Ming-Jim Yang, Kristina L Go, Thomas G Biel, Catherine E Miney, Schiley Pierre Louis, Brian K Law, Mary E Law, Elizabeth M Thomas, Kevin E Behrns, Christiaan Leeuwenburgh, Jae-Sung Kim
Ischemia/reperfusion (I/R) injury is a causative factor contributing to morbidity and mortality during liver resection and transplantation. Livers from elderly patients have a poorer recovery from these surgeries, indicating reduced reparative capacity with aging. Mechanisms underlying this age-mediated hypersensitivity to I/R injury remain poorly understood. Here, we investigated how sirtuin 1 (SIRT1) and mitofusin 2 (MFN2) are affected by I/R in aged livers. Young (3 months) and old (23-26 months) male C57/BL6 mice were subjected to hepatic I/R in vivo...
May 17, 2018: Aging Cell
https://www.readbyqxmd.com/read/29774550/efficacy-of-vaporized-hydrogen-peroxide-for-repeated-sterilization-of-a-single-use-single-incision-laparoscopic-surgery-port
#5
Valery F Scharf, Brian Dent, Megan E Jacob, Brandon Moore
OBJECTIVE: To determine the ability of vaporized hydrogen peroxide (VHP) to sterilize a single-use single-incision laparoscopic surgery port and its associated components after repeated simulated uses. STUDY DESIGN: Prospective in vitro experimental study. SAMPLE POPULATION: Six single-use single-incision laparoscopic surgery ports with associated cannulas and insufflation tubing. METHODS: Ports, cannulas, and tubing were subjected to 10 cycles of simulated use, bacterial inoculation with Staphylococcus pseudintermedius and Escherichia coli, decontamination and sterilization, and testing via culture based on their treatment group designation...
May 17, 2018: Veterinary Surgery: VS
https://www.readbyqxmd.com/read/29773457/effect-of-increasing-flow-when-grooving-during-phacoemulsification
#6
Brian A Bird, Rhett S Thomson, Lance A Stutz, Joshua B Heczko, Ashlie A Bernhisel, William R Barlow, Brian Zaugg, Jeff H Pettey, Randall J Olson
PURPOSE: To determine optimum flow settings on the Centurion Vision System during the grooving step in cataract surgery. SETTING: John A. Moran Eye Center Laboratory, University of Utah, Salt Lake City, Utah, USA. DESIGN: Experimental study. METHODS: Intact porcine lenses hardened by formalin and placed in a chamber designed to simulate the anterior chamber of the eye were used to test flow rate settings at 20 mL/min, 40 mL/min, and 60 mL/min...
May 15, 2018: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/29773409/correlation-of-objective-assessment-data-with-general-surgery-resident-in-training-evaluation-reports-and-operative-volumes
#7
Jad M Abdelsattar, Yazan N AlJamal, Raaj K Ruparel, Phillip G Rowse, Stephanie F Heller, David R Farley
OBJECTIVE: Faculty evaluations, ABSITE scores, and operative case volumes often tell little about true resident performance. We developed an objective structured clinical examination called the Surgical X-Games (5 rooms, 15 minutes each, 12-15 tests total, different for each postgraduate [PGY] level). We hypothesized that performance in X-Games will prove more useful in identifying areas of strength or weakness among general surgery (GS) residents than faculty evaluations, ABSITE scores, or operative cases volumes...
May 14, 2018: Journal of Surgical Education
https://www.readbyqxmd.com/read/29769058/efficacy-of-standardized-training-on-a-virtual-reality-simulator-to-advance-knee-and-shoulder-arthroscopic-motor-skills
#8
Stefan Rahm, Karl Wieser, David E Bauer, Felix Wa Waibel, Dominik C Meyer, Christian Gerber, Sandro F Fucentese
BACKGROUND: Most studies demonstrated, that training on a virtual reality based arthroscopy simulator leads to an improvement of technical skills in orthopaedic surgery. However, how long and what kind of training is optimal for young residents is unknown. In this study we tested the efficacy of a standardized, competency based training protocol on a validated virtual reality based knee- and shoulder arthroscopy simulator. METHODS: Twenty residents and five experts in arthroscopy were included...
May 16, 2018: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/29767239/time%C3%A2-dependent-and-independent-effects-of-thyroid-hormone-administration-following-myocardial-infarction-in-rats
#9
Ioanna Iliopoulou, Iordanis Mourouzis, George I Lambrou, Dimitra Iliopoulou, Dimitrios-Dionysios Koutsouris, Constantinos Pantos
Cardiac function is reduced following myocardial infarction (MI) due to myocardial injury and alterations in the viable non‑ischemic myocardium, a process known as cardiac remodeling. The current treatments available for patients with acute MI (AMI) reduce infarct size, preserve left ventricular (LV) function and improve survival; however, these treatments do not prevent remodeling, which can lead to heart failure. The aim of the present study was to investigate the effects of thyroid hormone (TH) treatment following MI in an in vivo rat model...
May 11, 2018: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29765829/injury-of-the-carotid-artery-during-endoscopic-endonasal-surgery-surveys-of-skull-base-surgeons
#10
Nicholas R Rowan, Meghan T Turner, Benita Valappil, Juan C Fernandez-Miranda, Eric W Wang, Paul A Gardner, Carl H Snyderman
Objectives  This study aimed to review endoscopic skull base surgeon experience with internal carotid artery (ICA) injuries during endoscopic endonasal surgery (EES) to provide an estimate of the incidence of ICA injury, the associated factors and identify the best training modalities for the management of this complication. Design  Anonymous electronic survey of past participants at a well-established endoscopic skull base surgery course and a global online community of skull base surgeons. Main Outcome Measures  Relative incidence of ICA injuries during EES, associated anatomic and intraoperative factors, and surgeon experience...
June 2018: Journal of Neurological Surgery. Part B, Skull Base
https://www.readbyqxmd.com/read/29765459/the-number-of-strata-in-propensity-score-stratification-for-a-binary-outcome
#11
Markus Neuhäuser, Matthias Thielmann, Graeme D Ruxton
Introduction: Non-interventional and other observational studies have become important in medical research. In such observational, non-randomized studies, groups usually differ in some baseline covariates. Propensity scores are increasingly being used in the statistical analysis of these studies. Stratification, also called subclassification, based on propensity scores is one of the possible methods. There is the quasi-standard of using five strata. In this paper we focus on a binary outcome and evaluate the above-mentioned standard of using five strata...
April 2018: Archives of Medical Science: AMS
https://www.readbyqxmd.com/read/29765445/augmented-reality-in-neurosurgery
#12
Raniel Tagaytayan, Arpad Kelemen, Cecilia Sik-Lanyi
Neurosurgery is a medical specialty that relies heavily on imaging. The use of computed tomography and magnetic resonance images during preoperative planning and intraoperative surgical navigation is vital to the success of the surgery and positive patient outcome. Augmented reality application in neurosurgery has the potential to revolutionize and change the way neurosurgeons plan and perform surgical procedures in the future. Augmented reality technology is currently commercially available for neurosurgery for simulation and training...
April 2018: Archives of Medical Science: AMS
https://www.readbyqxmd.com/read/29764028/-application-of-3d-virtual-reality-technology-with-multi-modality-fusion-in-resection-of-glioma-located-in-central-sulcus-region
#13
T N Chen, X T Yin, X G Li, J Zhao, L Wang, N Mu, K Ma, K Huo, D Liu, B Y Gao, H Feng, F Li
Objective: To explore the clinical and teaching application value of virtual reality technology in preoperative planning and intraoperative guide of glioma located in central sulcus region. Method: Ten patients with glioma in the central sulcus region were proposed to surgical treatment. The neuro-imaging data, including CT, CTA, DSA, MRI, fMRI were input to 3dgo sczhry workstation for image fusion and 3D reconstruction. Spatial relationships between the lesions and the surrounding structures on the virtual reality image were obtained...
May 8, 2018: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/29762452/the-use-of-expanded-polytetrafluoroethylene-in-short-nose-elongation-fourteen-years-of-clinical-experience
#14
Jiao Wei, Tanja Herrler, Ning Deng, Hua Xu, Bowen Shi, Chuanchang Dai
BACKGROUND: Short nose elongation is a relatively common rhinoplasty procedure, especially in Asia. The selection of the adequate graft material is challenging. Previous reports have described the application of expanded polytetrafluoroethylene (ePTFE) for dorsal augmentation rhinoplasty, but studies using ePTFE for nose elongation are lacking. We propose ePTFE as an alternative treatment for short noses, describe the technique, and discuss outcomes, patient selection, and complications based on our 14-year experience...
May 14, 2018: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/29761956/-research-on-adaptive-quasi-linear-viscoelastic-model-for-nonlinear-viscoelastic-properties-of-in-vivo-soft-tissues
#15
Heng Wang, Yuanjun Sang
The mechanical behavior modeling of human soft biological tissues is a key issue for a large number of medical applications, such as surgery simulation, surgery planning, diagnosis, etc. To develop a biomechanical model of human soft tissues under large deformation for surgery simulation, the adaptive quasi-linear viscoelastic (AQLV) model was proposed and applied in human forearm soft tissues by indentation tests. An incremental ramp-and-hold test was carried out to calibrate the model parameters. To verify the predictive ability of the AQLV model, the incremental ramp-and-hold test, a single large amplitude ramp-and-hold test and a sinusoidal cyclic test at large strain amplitude were adopted in this study...
October 1, 2017: Sheng Wu Yi Xue Gong Cheng Xue za Zhi, Journal of Biomedical Engineering, Shengwu Yixue Gongchengxue Zazhi
https://www.readbyqxmd.com/read/29761538/pharmacokinetics-of-cefuroxime-in-infants-and-neonates-undergoing-cardiac-surgery
#16
R Gertler, M Gruber, G Wiesner, S Grassin-Delyle, S Urien, P Tassani-Prell, K Martin
AIM: Very little data exist regarding the effect of cardiopulmonary bypass (CPB) on cefuroxime (CXM) pharmacokinetics in children less than one year of age. METHODS: 50 mg kg-1 CXM iv after induction were followed by 75 mg kg-1 into the CPB circuit. In 42 patients undergoing cardiac surgery 15 to 20 samples were obtained between 5 and 360 min after each dose. Total CXM concentrations were measured by high-performance liquid chromatography and a PK/PD modelling was performed...
May 14, 2018: British Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/29761422/computational-pre-surgical-planning-of-arterial-patch-reconstruction-parametric-limits-and-in-vitro-validation
#17
S Samaneh Lashkarinia, Senol Piskin, Tijen A Bozkaya, Ece Salihoglu, Can Yerebakan, Kerem Pekkan
Surgical treatment of congenital heart disease (CHD) involves complex vascular reconstructions utilizing artificial and native surgical materials. A successful surgical reconstruction achieves an optimal hemodynamic profile through the graft in spite of the complex post-operative vessel growth pattern and the altered pressure loading. This paper proposes a new in silico patient-specific pre-surgical planning framework for patch reconstruction and investigates its computational feasibility. The proposed protocol is applied to the patch repair of main pulmonary artery (MPA) stenosis in the Tetralogy of Fallot CHD template...
May 14, 2018: Annals of Biomedical Engineering
https://www.readbyqxmd.com/read/29761352/examining-validity-evidence-for-a-simulation-based-assessment-tool-for-basic-robotic-surgical-skills
#18
Maria Cecilie Havemann, Torur Dalsgaard, Jette Led Sørensen, Kristin Røssaak, Steffen Brisling, Berit Jul Mosgaard, Claus Høgdall, Flemming Bjerrum
Increasing focus on patient safety makes it important to ensure surgical competency among surgeons before operating on patients. The objective was to gather validity evidence for a virtual-reality simulator test for robotic surgical skills and evaluate its potential as a training tool. Surgeons with varying experience in robotic surgery were recruited: novices (zero procedures), intermediates (1-50), experienced (> 50). Five experienced surgeons rated five exercises on the da Vinci Skills Simulator. Participants were tested using the five exercises...
May 14, 2018: Journal of Robotic Surgery
https://www.readbyqxmd.com/read/29761316/impact-of-visual-feedback-on-dose-volume-histograms-for-organs-at-risk-in-postoperative-radiotherapy-with-deep-inspiration-breath-holding-for-patients-treated-with-breast-conserving-therapy-a-planning-study
#19
Keiko Nemoto Murofushi, Masaru Nakajima, Tetsuya Tomita, Minako Sumi, Yasuo Yoshioka, Masahiko Oguchi, Hideyuki Sakurai
BACKGROUND: We evaluated the effectiveness of visual feedback (VF) on radiotherapy with deep inspiration breath-holding (DIBH), and reviewed the dose for organs at risk (OARs). METHODS: Respiratory motions during DIBH for 15 s were monitored during planning computed tomography (CT)-scanning and simulation for 40 patients after breast-conserving surgery from June 2007 to February 2008. For 22 of 40 patients, a goggle-type liquid crystal display monitor was used for VF...
May 14, 2018: Breast Cancer: the Journal of the Japanese Breast Cancer Society
https://www.readbyqxmd.com/read/29761273/a-randomised-trial-of-observational-learning-from-2d-and-3d-models-in-robotically-assisted-surgery
#20
David J Harris, Samuel J Vine, Mark R Wilson, John S McGrath, Marie-Eve LeBel, Gavin Buckingham
BACKGROUND: Advances in 3D technology mean that both robotic surgical devices and surgical simulators can now incorporate stereoscopic viewing capabilities. While depth information may benefit robotic surgical performance, it is unclear whether 3D viewing also aids skill acquisition when learning from observing others. As observational learning plays a major role in surgical skills training, this study aimed to evaluate whether 3D viewing provides learning benefits in a robotically assisted surgical task...
May 14, 2018: Surgical Endoscopy
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