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Hand anatomy

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https://www.readbyqxmd.com/read/28107764/endoscopic-ultrasound-guided-biliary-access-versus-precut-papillotomy-in-patients-with-failed-biliary-cannulation-a-retrospective-study
#1
Alexander Lee, Anupam Aditi, Yasser M Bhat, Kenneth F Binmoeller, Chris Hamerski, Oriol Sendino, Steve Kane, John P Cello, Lukejohn W Day, Medi Mohamadnejad, V Raman Muthusamy, Rabindra Watson, Jason B Klapman, Sri Komanduri, Sachin Wani, Janak N Shah
Background and aims Precut papillotomy is widely used after failed biliary cannulation. Endoscopic ultrasound (EUS)-guided biliary access techniques are newer methods to facilitate access and therapy in failed cannulation. We evaluated the impact of EUS-guided biliary access on endoscopic retrograde cholangiopancreatography (ERCP) success and compared these techniques to precut papillotomy. Patients and methods We retrospectively compared two ERCP cohorts. One cohort consisted of biliary ERCPs (n = 1053) attempted in patients with native papillae and surgically unaltered anatomy in whom precut papillotomy and/or EUS-guided biliary access were routinely performed immediately after failed cannulation...
January 20, 2017: Endoscopy
https://www.readbyqxmd.com/read/28103500/thoracoscopic-surgery-in-the-prone-position-for-esophageal-cancer-in-patients-with-situs-inversus-totalis-a-report-of-two-cases
#2
Toru Nakano, Takashi Kamei, Yu Onodera, Naoto Ujiie, Noriaki Ohuchi
INTRODUCTION: Situs inversus totalis (SIT) is a rare congenital condition characterized by a complete transposition of thoracic and abdominal organs. Here, we present two successful cases of left thoracoscopic esophagectomy in the prone position for SIT-associated esophageal cancer. PRESENTATION OF CASE: Our first case was of an 82-year-old man who underwent a left thoracoscopic esophagectomy in the prone position, followed by hand-assisted laparoscopic gastric mobilization...
January 6, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28095914/vascular-mapping-of-the-retroauricular-skin-proposal-for-a-posterior-superior-surgical-incision-for-transcutaneous-bone-conduction-hearing-implants
#3
Adam Perenyi, Zsofia Bere, Janos Jarabin, Balazs Sztano, Edit Kukla, Ziad Bikhazi, Laszlo Tiszlavicz, Ferenc Toth, Jozsef Geza Kiss, Laszlo Rovo
BACKGROUND: Passive transcutaneous osseointegrated hearing implant systems have become increasingly popular more recently. The area over the implant is vulnerable due to vibration and pressure from the externally worn sound processor. Good perfusion and neural integrity has the potential to reduce complications. The authors' objective was to determine the ideal surgical exposure to maintain perfusion and neural integrity and decrease surgical time as a result of reduced bleeding. METHODS: The vascular anatomy of the temporal-parietal soft tissue was examined in a total of 50 subjects...
January 17, 2017: Journal of Otolaryngology—Head & Neck Surgery
https://www.readbyqxmd.com/read/28071705/digestive-and-appendicular-soft-parts-with-behavioural-implications-in-a-large-ordovician-trilobite-from-the-fezouata-lagerst%C3%A3-tte-morocco
#4
Juan C Gutiérrez-Marco, Diego C García-Bellido, Isabel Rábano, Artur A Sá
Trilobites were one of the most successful groups of marine arthropods during the Palaeozoic era, yet their soft-part anatomy is only known from a few exceptionally-preserved specimens found in a handful of localities from the Cambrian to the Devonian. This is because, even if the sclerotized appendages were not destroyed during early taphonomic stages, they are often overprinted by the three-dimensional, mineralised exoskeleton. Inferences about the ventral anatomy and behavioural activities of trilobites can also be derived from the ichnological record, which suggests that most Cruziana and Rusophycus trace fossils were possibly produced by the actions of trilobites...
January 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28065641/mdct-of-hand-and-wrist-infections-emphasis-on-compartmental-anatomy
#5
REVIEW
S Ahlawat, F M Corl, D M LaPorte, E K Fishman, L M Fayad
Hand and wrist infections can present with a spectrum of manifestations ranging from cellulitis to deep-space collections. The various infectious processes can be categorised as superficial or deep infections based on their respective locations relative to the tendons. Superficial hand infections are located superficial to the tendons and are comprised of cellulitis, lymphangitis, paronychia, pulp-space infections, herpetic whitlow, and include volar as well as dorsal subcutaneous abscesses. Deep hand infections are located deep to the tendon sheaths and include synovial space infections, such as infectious tenosynovitis, deep fascial space infections, septic arthritis, necrotising fasciitis, and osteomyelitis...
January 5, 2017: Clinical Radiology
https://www.readbyqxmd.com/read/28059650/surgical-benefits-of-combined-awake-craniotomy-and-intraoperative-magnetic-resonance-imaging-for-gliomas-associated-with-eloquent-areas
#6
Kazuya Motomura, Atsushi Natsume, Kentaro Iijima, Shunichiro Kuramitsu, Masazumi Fujii, Takashi Yamamoto, Satoshi Maesawa, Junko Sugiura, Toshihiko Wakabayashi
OBJECTIVE Maximum extent of resection (EOR) for lower-grade and high-grade gliomas can increase survival rates of patients. However, these infiltrative gliomas are often observed near or within eloquent regions of the brain. Awake surgery is of known benefit for the treatment of gliomas associated with eloquent regions in that brain function can be preserved. On the other hand, intraoperative MRI (iMRI) has been successfully used to maximize the resection of tumors, which can detect small amounts of residual tumors...
January 6, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28058796/hox-gene-expression-in-the-specialized-limbs-of-the-iberian-mole-talpa-occidentalis
#7
Constanze Bickelmann, Wessel van der Vos, Merijn A G de Bakker, Rafael Jiménez, Saskia Maas, Marcelo R Sánchez-Villagra
Fossorial talpid moles use their limbs predominantly for digging, which explains their highly specialized anatomy. The humerus is particularly short and dorsoventrally rotated, with broadened distal and proximal parts where muscles attach and which facilitate powerful abductive movements. The radius and ulna are exceptionally robust and short. The ulna has an expanded olecranon process. The femur is generalized, but the fused tibia-fibula complex is short and robust. To understand the developmental bases of these specializations, we studied expression patterns of four 5' Hox genes in the fossorial Iberian mole (Talpa occidentalis)...
January 2017: Evolution & Development
https://www.readbyqxmd.com/read/28054168/minimally-invasive-surgery-for-complicated-diverticulitis
#8
Najjia N Mahmoud, Elijah W Riddle
Recent guidelines recommend an individualized approach to recurrent uncomplicated diverticulitis, reflecting research showing that non-operative treatment is safe. Thus, the majority of operations for diverticulitis in the future may be for complicated indications. A laparoscopic approach may be used for both acute and chronic complicated diverticulitis in appropriate patients, as described in the American and European guidelines. However, a safe approach to minimally invasive surgery requires recognition when conditions deteriorate or are not suited to laparoscopy as well as knowledge of a variety of technical maneuvers that elucidate difficult anatomy and facilitate resection...
January 4, 2017: Journal of Gastrointestinal Surgery: Official Journal of the Society for Surgery of the Alimentary Tract
https://www.readbyqxmd.com/read/28050345/functional-mri-vs-navigated-tms-to-optimize-m1-seed-volume-delineation-for-dti-tractography-a-prospective-study-in-patients-with-brain-tumours-adjacent-to-the-corticospinal-tract
#9
Carolin Weiss Lucas, Irada Tursunova, Volker Neuschmelting, Charlotte Nettekoven, Ana-Maria Oros-Peusquens, Gabriele Stoffels, Andrea Maria Faymonville, Shah N Jon, Karl Josef Langen, Hannah Lockau, Roland Goldbrunner, Christian Grefkes
BACKGROUND: DTI-based tractography is an increasingly important tool for planning brain surgery in patients suffering from brain tumours. However, there is an ongoing debate which tracking approaches yield the most valid results. Especially the use of functional localizer data such as navigated transcranial magnetic stimulation (nTMS) or functional magnetic resonance imaging (fMRI) seem to improve fibre tracking data in conditions where anatomical landmarks are less informative due to tumour-induced distortions of the gyral anatomy...
2017: NeuroImage: Clinical
https://www.readbyqxmd.com/read/28049512/a-stab-wound-to-the-axilla-illustrating-the-importance-of-brachial-plexus-anatomy-in-an-emergency-context-a-case-report
#10
Diogo Casal, Teresa Cunha, Diogo Pais, Inês Iria, Maria Angélica-Almeida, Gerardo Millan, José Videira-Castro, João Goyri-O'Neill
BACKGROUND: Although open injuries involving the brachial plexus are relatively uncommon, they can lead to permanent disability and even be life threatening if accompanied by vascular damage. We present a case report of a brachial plexus injury in which the urgency of the situation precluded the use of any ancillary diagnostic examinations and forced a rapid clinical assessment. CASE PRESENTATION: We report a case of a Portuguese man who had a stabbing injury at the base of his left axilla...
January 4, 2017: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/28047736/su-f-p-42-to-navigate-or-not-to-navigate-hdr-bt-in-recurrent-spine-lesions
#11
L Voros, G Cohen, M Zaider, Y Yamada
PURPOSE: We compare the accuracy of HDR catheter placement for paraspinal lesions using O-arm CBCT imaging combined with StealthStation navigation and traditional fluoroscopically guided catheter placement. METHODS: CT and MRI scans were acquired pre-treatment to outline the lesions and design treatment plans (pre-plans) to meet dosimetric constrains. The pre-planned catheter trajectories were transferred into the StealthStation Navigation system prior to the surgery...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28047338/su-f-t-67-correction-factors-for-monitor-unit-verification-of-clinical-electron-beams
#12
J Haywood
PURPOSE: Monitor units calculated by electron Monte Carlo treatment planning systems are often higher than TG-71 hand calculations for a majority of patients. Here I've calculated tables of geometry and heterogeneity correction factors for correcting electron hand calculations. METHOD: A flat water phantom with spherical volumes having radii ranging from 3 to 15 cm was created. The spheres were centered with respect to the flat water phantom, and all shapes shared a surface at 100 cm SSD...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28041615/functional-anatomy-of-the-macaque-temporo-parieto-frontal-connectivity
#13
REVIEW
Elena Borra, Giuseppe Luppino
The primate parietal lobe is primarily dedicated to the processing of sensory information for the guidance of motor behavior, based on the integration of sensory with motor signals (sensorimotor transformations), mediated by specific, strong, and reciprocal connections with the motor cortex. Sensorimotor transformations have been regarded as an automatic process carried out independently from the temporal cortex, which is considered the location where sensory information is used for perceptual processes. However, both human and non-human primate studies have shown interactions between these two regions in different aspects of sensorimotor and cognitive processes...
December 18, 2016: Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
https://www.readbyqxmd.com/read/28026846/vascular-anatomy-of-the-thenar-eminence-its-relevance-to-a-pedicled-or-free-thenar-flap
#14
Ana Zekavica, Milan Milisavljević, Dražan Erić, Branislava Ćurčić, Sunčica Popović, Biljana Vitošević, Aleksandra Dožić, Bojan Štimec, Radovan Manojlović
BACKGROUND: The aim of this study was to clarify the arterial supply of the skin covering the prominent part of the thenar eminence in order to describe the possibility and potential for harvesting a pedicled or a free flap from the thenar eminence. MATERIALS AND METHODS: The arteries were studied in 30 post-mortem specimens of human hands; 3 previously perfused with 4% formaldehyde solution, and injected with black India ink, and 27 injected with methyl-methacrylate and afterwards corroded in 40% potassium hydroxide solution...
December 27, 2016: Folia Morphologica (Warsz)
https://www.readbyqxmd.com/read/28025624/impact-of-a-revised-curriculum-focusing-on-clinical-neurology-and-musculoskeletal-care-on-a-required-fourth-year-medical-student-physical-medicine-and-rehabilitation-clerkship
#15
John W Norbury, Clinton E Faulk, Kelly M Harrell, Luan E Lawson, Daniel P Moore
Background. A Required Fourth-Year Medical Student Physical Medicine and Rehabilitation (PM&R) Clerkship was found to increase students' knowledge of PM&R; however the students' overall rotation evaluations were consistently lower than the other 8 required clerkships at the medical school. Objective. To describe the impact of a revised curriculum based upon Entrustable Professional Activities and focusing on basic pain management, musculoskeletal care, and neurology. Setting. Academic Medical Center. Participants...
2016: Rehabilitation Research and Practice
https://www.readbyqxmd.com/read/27999461/radial-artery-pseudoaneurysm-with-aberrant-radial-artery-anatomy-an-unusual-presentation-of-flexor-tenosynovitis
#16
Nicholas A Calotta, Megan E Gornet, Edward F McCarthy, Donna Magid, E Gene Deune
Purpose Radial artery pseudoaneurysm is uncommon and mainly associated with radial artery cannulization for cardiac intervention or invasive hemodynamic monitoring. It is rarely seen as a result of intra-arterial recreational drug injection. Methods We present the case of a 35-year-old man with a 12-year history of intravenous drug use and 1-year history of intra-arterial drug use who developed radial artery pseudoaneurysm with a right long finger suppurative flexor tenosynovitis and subsequent acute radial-sided hand ischemia...
December 2016: Journal of Hand and Microsurgery
https://www.readbyqxmd.com/read/27995220/standardized-4-step-technique-of-bladder-neck-dissection-during-robot-assisted-radical-prostatectomy
#17
REVIEW
Mansour Alnazari, Marc Zanaty, Emad Rajih, Assaad El-Hakim, Kevin C Zorn
Bladder neck (BN) dissection is considered one of the most challenging steps during robot-assisted radical prostatectomy. Better understanding of the BN anatomy, coupled with a standardized approach may facilitate dissection while minimizing complications. We describe in this article the 4 anatomic spaces during standardized BN dissection, as well other technical maneuvers of managing difficult scenarios including treatment of a large median lobe or patients with previous transurethral resection of the prostate...
December 2016: Investigative and Clinical Urology
https://www.readbyqxmd.com/read/27986379/lung-nodule-classification-using-deep-feature-fusion-in-chest-radiography
#18
Changmiao Wang, Ahmed Elazab, Jianhuang Wu, Qingmao Hu
Lung nodules are small, round, or oval-shaped masses of tissue in the lung region. Early diagnosis and treatment of lung nodules can significantly improve the quality of patients' lives. Because of their small size and the interlaced nature of chest anatomy, detection of lung nodules using different medical imaging techniques becomes challenging. Recently, several methods for computer aided diagnosis (CAD) were proposed to improve the detection of lung nodules with good performances. However, the current methods are unable to achieve high sensitivity and high specificity...
November 12, 2016: Computerized Medical Imaging and Graphics: the Official Journal of the Computerized Medical Imaging Society
https://www.readbyqxmd.com/read/27951614/nerve-sparing-and-surgery-for-deep-infiltrating-endometriosis-pessimism-of-the-intellect-or-optimism-of-the-will
#19
Basma Darwish, Horace Roman
Nerve-sparing surgery is an emerging technique for surgery-related dysfunction. Within the past 15 years, an essential progress in recognition and understanding of the anatomy of the pelvic autonomous nervous system has been made. Surgical preservation of vegetative nerves has become well known in many cancer centers. The technique has led to improvement of the quality of life following oncologic radical procedures. Positive results have led to the adoption of such techniques in the surgical treatment of deep infiltrating endometriosis in an aim to prevent urinary, rectal, and sexual dysfunction...
December 12, 2016: Seminars in Reproductive Medicine
https://www.readbyqxmd.com/read/27943456/implementation-of-a-4-year-point-of-care-ultrasound-curriculum-in-a-liaison-committee-on-medical-education-accredited-us-medical-school
#20
Sean P Wilson, Jason M Mefford, Shadi Lahham, Shahram Lotfipour, Mohammad Subeh, Gracie Maldonado, Sophie Spann, John C Fox
OBJECTIVES: The established benefits of point-of-care ultrasound have given rise to multiple new and innovative curriculums to incorporate ultrasound teaching into medical education. This study sought to measure the educational success of a comprehensive and integrated 4-year point-of-care ultrasound curriculum. METHODS: We integrated a curriculum consisting of traditional didactics combined with asynchronous learning modules and hands-on practice on live models with skilled sonographers into all 4 years of education at a Liaison Committee on Medical Education-accredited US Medical School...
December 10, 2016: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
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