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Hand anatomy

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https://www.readbyqxmd.com/read/29155719/exploring-deep-space-uncovering-the-anatomy-of-periventricular-structures-to-reveal-the-lateral-ventricles-of-the-human-brain
#1
Alexandru S Colibaba, Aicee Dawn B Calma, Alexandra L Webb, Krisztina Valter
Anatomy students are typically provided with two-dimensional (2D) sections and images when studying cerebral ventricular anatomy and students find this challenging. Because the ventricles are negative spaces located deep within the brain, the only way to understand their anatomy is by appreciating their boundaries formed by related structures. Looking at a 2D representation of these spaces, in any of the cardinal planes, will not enable visualisation of all of the structures that form the boundaries of the ventricles...
October 22, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/29136029/a-structural-review-of-foliar-glands-in-passiflora-l-passifloraceae
#2
Renata Cristina Cassimiro de Lemos, Delmira da Costa Silva, Gladys Flavia de Albuquerque Melo-de-Pinna
Extrafloral glands in Passifloraceae species have aroused the interest of many researchers because of their wide morphological diversity. The present work analyzed the foliar glands on 34 species of Passiflora from samples containing glands in the petiole and foliar blade fixed in 50% solution of formaldehyde-ethanol-acetic acid and stored in a 70% ethanol solution. For anatomical analyses, part of the material was embedded in Paraplast, longitudinally sectioned and double stained with safranin and astra blue...
2017: PloS One
https://www.readbyqxmd.com/read/29127118/the-acra-anatomy-study-assessment-of-disability-after-coronary-procedures-using-radial-access-a-comprehensive-anatomic-and-functional-assessment-of-the-vasculature-of-the-hand-and-relation-to-outcome-after-transradial-catheterization
#3
Maarten A H van Leeuwen, Maurits R Hollander, Dirk J van der Heijden, Peter M van de Ven, Kim H M Opmeer, Yannick J H J Taverne, Marco J P F Ritt, Ferdinand Kiemeneij, Nicolas M van Mieghem, Niels van Royen
BACKGROUND: The palmar arches serve as the most important conduits for digital blood supply, and incompleteness may lead to digital ischemia when the radial artery becomes obstructed after cardiac catheterization. The rate of palmar arch incompleteness and the clinical consequences after transradial access are currently unknown. METHODS AND RESULTS: The vascular anatomy of the hand was documented by angiography in 234 patients undergoing transradial cardiac catheterization...
November 2017: Circulation. Cardiovascular Interventions
https://www.readbyqxmd.com/read/29121048/anatomical-variations-of-the-deep-head-of-cruveilhier-of-the-flexor-pollicis-brevis-and-its-significance-for-the-evolution-of-the-precision-grip
#4
Samuel S Dunlap, M Ashraf Aziz, Janine M Ziermann
Cruveilhier described in 1834 the human flexor pollicis brevis (FPB), a muscle of the thenar compartment, as having a superficial and a deep head, respectively, inserted onto the radial and ulnar sesamoids of the thumb. Since then, Cruveilhier's deep head has been controversially discussed. Often this deep head is confused with Henle's "interosseous palmaris volaris" or said to be a slip of the oblique adductor pollicis. In the 1960s, Day and Napier described anatomical variations of the insertions of Cruveilhier's deep head, including its absence, and hypothesized, that the shift of the deep head's insertion from ulnar to radial facilitated "true opposability" in anthropoids...
2017: PloS One
https://www.readbyqxmd.com/read/29114939/three-dimensional-endoscopy-for-endoscopic-salvage-nasopharyngectomy-preliminary-report-of-experience
#5
Jimmy Yu Wai Chan, William Ignace Wei
BACKGROUND: Prospective, observational study to assess the efficacy of salvage nasopharyngectomy for recurrent nasopharyngeal carcinoma (NPC) via the endoscopic endonasal approach using a three-dimensional (3D) high-definition endoscopic system. METHODS: Between 2016 and 2017, 30 patients with recurrent NPC were recruited. Patient demographics, tumor characteristics, and perioperative data were recorded. Instrument ergonomics and perceived advantages were assessed by the operating, assisting, and observing surgeons...
November 8, 2017: Laryngoscope
https://www.readbyqxmd.com/read/29114336/physical-exam-and-evaluation-of-the-unstable-shoulder
#6
María Valencia Mora, Miguel Ángel Ruiz Ibán, Jorge Diaz Heredia, Juan Carlos Gutiérrez-Gómez, Raquel Ruiz Diaz, Mikel Aramberri, Carlos Cobiella
Background: The clinical evaluation of the patient with shoulder instability can be challenging. The pathological spectrum ranges from the straightforward "recurrent anterior dislocation" patient to the overhead athlete with a painful shoulder but not clear instability episodes. Advances in shoulder arthroscopy and imaging have helped in understanding the anatomy and physiopathology of the symptoms. The aim of this general article is to summarize the main examination manoeuvres that could be included in an overall approach to a patient with a suspicion of instability...
2017: Open Orthopaedics Journal
https://www.readbyqxmd.com/read/29101974/the-collateral-ligament-of-the-digits-of-the-hand-anatomy-physiology-biomechanics-injury-and-treatment
#7
REVIEW
Leo M Rozmaryn
Ligament injuries are among the most common musculoskeletal injuries seen in clinical practice and ligaments are the most frequently injured structures in a joint. Ligaments play an important role in balancing joint mobility and joint stability. Disruption of joint ligaments severely impairs joint function. Over the past 10 years, a new appreciation of a neuroanatomy and neurophysiology of joint ligaments and its biofeedback loops to surrounding muscles and tendons has emerged to explain the relationship between primary and secondary restraints that allow normal joint motion yet prevent pathological motion...
November 2017: Journal of Hand Surgery
https://www.readbyqxmd.com/read/29101544/anatomy-of-the-atria-a%C3%A2-road-map-to-the-left-atrial-appendage
#8
REVIEW
Umberto Barbero, Siew Yen Ho
The left atrial appendage (LAA) has received increasing attention in recent years because of thrombi formation in patients with atrial fibrillation, which increases the risk of stroke. In patients who have contraindications for long-term oral anticoagulation therapy, percutaneous procedures are used to occlude the LAA and there are now several devices available for implantation, both endocardially and epicardially. Despite the high-resolution imaging techniques on hand today, limitations remain in providing information about wall thickness and neighboring structures; therefore, in-depth knowledge of the normal atrial anatomy is mandatory when considering such interventions...
November 3, 2017: Herzschrittmachertherapie & Elektrophysiologie
https://www.readbyqxmd.com/read/29096042/what-type-of-learner-are-your-students-preferred-learning-styles-of-undergraduate-gross-anatomy-students-according-to-the-index-of-learning-styles-questionnaire
#9
Melissa M Quinn, Theodore Smith, Eileen L Kalmar, Jennifer M Burgoon
Students learn and process information in many different ways. Learning styles are useful as they allow instructors to learn more about students, as well as aid in the development and application of useful teaching approaches and techniques. At the undergraduate level there is a noticeable lack of research on learning style preferences of students enrolled in gross anatomy courses. The Index of Learning Styles (ILS) questionnaire was administered to students enrolled in a large enrollment undergraduate gross anatomy course with laboratory to determine their preferred learning styles...
November 2, 2017: Anatomical Sciences Education
https://www.readbyqxmd.com/read/29089685/use-of-multidetector-computed-tomography-angiography-of-upper-limb-circulation-in-patients-undergoing-coronary-artery-bypass-grafting-surgery
#10
Hasan B Altinsoy, Ozkan Alatas, Hidayet Kayancicek, Erhan Hafiz, Omer F Dogan
OBJECTIVE: This study aimed to evaluate the bilateral forehand circulation using a 64-channel multidetector computed tomography (MDCT) as a noninvasive method to define criteria for an upper extremity arterial anatomy and pathology prior to the use of arterial conduits. MATERIALS AND METHODS: Fifty-five patients with coronary artery disease who underwent total arterial coronary artery bypass grafting (CABG) were randomly selected for this prospective study. MDCT angiography was performed for 110 examinations of forearm and hand arterial anatomy...
July 2017: Indian Journal of Radiology & Imaging
https://www.readbyqxmd.com/read/29078674/single-incision-video-assisted-thoracoscopic-surgery-left-lower-lobe-anterior-segmentectomy-s8
#11
Carlos Galvez, Francisco Lirio, Julio Sesma, Benno Baschwitz, Sergio Bolufer
Unusual anatomical segmentectomies are technically demanding procedures that require a deep knowledge of intralobar anatomy and surgical skill. In the other hand, these procedures preserve more normal lung parenchyma for lesions located in specific anatomical segments, and are indicated for benign lesions, metastasis and also early stage adenocarcinomas without nodal involvement. A 32-year-old woman was diagnosed of a benign pneumocytoma in the anterior segment of the left-lower lobe (S8, LLL), so we performed a single-incision video-assisted thoracoscopic surgery (SI-VATS) anatomical S8 segmentectomy in 140 minutes under intercostal block...
2017: J Vis Surg
https://www.readbyqxmd.com/read/29077866/are-there-any-relations-among-transplant-centre-volume-surgical-technique-and-anatomy-for-donor-graft-selection-ten-year-multicentric-italian-experience-on-mini-invasive-living-donor-nephrectomy
#12
Matteo Ravaioli, Enzo Capocasale, Lucrezia Furian, Vanessa De Pace, Maurizio Iaria, Gionata Spagnoletti, Maria Paola Salerno, Alessandro Giacomoni, Luciano De Carlis, Caterina Di Bella, Nguefouet Momo Rostand, Luigino Boschiero, Giovanni Pasquale, Andrea Bosio, Andrea Collini, Mario Carmellini, Andrea Airoldi, Gianmarco Bondonno, Pasquale Ditonno, Stefano Vittorio Impedovo, Claudio Beretta, Antenore Giussani, Carlo Socci, Danilo Carlo Parolini, Massimo Abelli, Elena Ticozzelli, Umberto Baccarani, Gian Luigi Adani, Flavia Caputo, Barbara Buscemi, Mauro Frongia, Andrea Solinas, Salvatore Gruttadauria, Marco Spada, Antonio Daniele Pinna, Jacopo Romagnoli
Background: Selection of the right or left living donor kidney for transplantation is influenced by many variables. In the present multi centric study including 21 Italian transplant centres, we evaluated whether centre volume or surgical technique may influence the selection process. Methods: Intra- and perioperative donor data, donor kidney function, and recipient and graft survival were collected among 693 mini-invasive living donor nephrectomies performed from 2002 to 2014...
October 25, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/29071740/coaptation-triangle-and-golden-proportion-in-mitral-valve-anatomy-does-nature-play-with-geometry
#13
Luca Deorsola, Alessandra Bellone
INTRODUCTION: The Coaptation Triangle, or Tenting Area, can be identified on long-axis 2D images. Its assessment is a routine practice during echocardiographic mitral evaluation. The Golden Proportion is a particular geometric ratio between two segments. Its value is an irrational number, commonly rounded to 0.618 and showing unique geometrical/mathematical properties. Interestingly, its presence has been documented in an extremely variable number of natural settings. Hypothesizing the presence of the Golden Proportion in normal mitral anatomy, we examined the Coaptation Triangle of healthy valves to investigate such a theory...
October 26, 2017: Echocardiography
https://www.readbyqxmd.com/read/29068813/the-shared-goals-and-distinct-strengths-of-the-medical-humanities-can-the-sum-of-the-parts-be-greater-than-the-whole
#14
Jeremy A Greene, David S Jones
Since the 1960s, faculty from diverse fields have banded together under the banner of the medical humanities, a term which unites art, literature, history, anthropology, religious studies, philosophy, and other disciplines. Arguments for the relevance of medical humanities often emphasize contributions that any of these disciplines can make to medical education, whether those involve empathy, professionalism, critical reasoning, or tolerating ambiguity. The authors argue that the constituent disciplines of the medical humanities are not interchangeable parts, but represent different perspectives and methodologies that offer their own distinct contributions to medical training...
October 24, 2017: Academic Medicine: Journal of the Association of American Medical Colleges
https://www.readbyqxmd.com/read/29059269/the-practice-and-implications-of-finding-fluid-during-point-of-care-ultrasonography-a-review
#15
Rachel B Liu, Joseph H Donroe, Robert L McNamara, Howard P Forman, Chris L Moore
Importance: Point-of-care ultrasonography (POCUS) is an increasingly affordable and portable technology that is an important part of 21st-century medicine. When appropriately used, POCUS has the potential to expedite diagnosis and improve procedural success and safety. POCUS is now being adopted in medical education as early as the first year of medical school. While potentially powerful and versatile, POCUS is a user-dependent technology that has not been formalized or standardized yet within internal medicine residency training programs...
October 23, 2017: JAMA Internal Medicine
https://www.readbyqxmd.com/read/29057180/extensor-digitorum-brevis-manus-a-comprehensive-review-of-this-variant-muscle-of-the-dorsal-hand
#16
REVIEW
Rafik Shereen, Marios Loukas, R Shane Tubbs
The extensor digitorum brevis manus (EDBM) is a variant muscle located on the dorsum of the hand. This variant of the fourth compartment has often eluded preoperative diagnosis and led to unnecessary repeat visits to the operating room owing to its lack of notoriety. As a result, we aim to review the literature concerning the EDBM with respect to its embryology, comparative anatomy and variants, and clinical significance in an attempt to increase awareness and help in preoperative diagnosis and management. A total of 21 articles were reviewed...
August 15, 2017: Curēus
https://www.readbyqxmd.com/read/29044593/patterns-of-chondrification-and-ossification-in-the-skull-of-graptemys-pseudogeographica-the-false-map-turtle-emydidae
#17
Sharon C Danielson, Christopher A Sheil
Patterns of ossification and chondrification are well-described for several species of turtles, but details of the chondrocranial anatomy are known for only a handful of species. Cleared and double-stained embryos of Graptemys pseudogeographica were used to examine the fully formed chondrocranium and the formation, chondrification, and ossification of the cranium. The chondrocranium of G. pseudogeographica possesses an unusually large, irregularly shaped foramen epiphaniale that is joined with the fenestra olfactoria...
October 17, 2017: Journal of Morphology
https://www.readbyqxmd.com/read/29033227/spasticity-and-hyperselective-neurectomy-in-the-upper-limb
#18
M Gras, C Leclercq
Spasticity is a complex pathology, both in terms of assessment and treatment. This article focuses on the clinical examination (objective, capacity, performance and function), which is key for choosing a treatment and can be helped by botulinum toxin injections. The treatment involves physical therapy, occupational therapy, medications and surgery. Neurectomy has been used in the upper limb since 1912 and is one of the therapeutic options for spasticity. This treatment is usually reserved for nonfunctional hands...
October 12, 2017: Hand Surgery and Rehabilitation
https://www.readbyqxmd.com/read/29030698/biliary-atresia-and-liver-transplantation-results-and-thoughts-for-primary-liver-transplantation-in-select-patients
#19
REVIEW
Riccardo Superina
Biliary atresia (BA) is one of the most common indications for liver transplantation in children. Despite advances in biliary atresia surgical techniques, most children will ultimately require liver transplantation. Possible pre-operative predictors of outcome after the Kasai operation are: 1. Age at operation 2. Presence of the biliary atresia splenic malformation syndrome (BASM) 3. Center specific factors 4. Liver histology and 5. Anatomic pattern of bile ducts found at surgery.Age at surgery is considered a strong predictor of success after portoenterostomy...
December 2017: Pediatric Surgery International
https://www.readbyqxmd.com/read/29020826/redefining-zone-ii-anatomy-of-the-flexor-digitorum-superficialis-insertion
#20
Luke T Nicholson, Jeffrey R Hill, Braden McKnight, Nathanael Heckmann, Milan Stevanovic, Alidad Ghiassi
BACKGROUND: Flexor zone II is defined as the region spanning the proximal aspect of the A1 pulley to the insertion of the flexor digitorum superficialis (FDS) tendon. Descriptions of the FDS insertion are inconsistent in the literature, but zones of injury are frequently determined with reference to superficial landmarks. The purpose of this study was to describe the footprint of the FDS insertion and define its relationship to the proximal interphalangeal (PIP) skin crease. METHODS: The FDS insertion on the index, middle, ring, and small fingers was dissected in 6 matched pairs of fresh-frozen cadaveric hands...
October 1, 2017: Hand: Official Journal of the American Association for Hand Surgery
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