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https://www.readbyqxmd.com/read/28735438/adenosine-assisted-neurovascular-surgery-initial-case-series-and-review-of-literature
#1
REVIEW
Alaa Al-Mousa, Gahan Bose, Katharine Hunt, Ahmed K Toma
Cerebral aneurysms in complex anatomical locations and intraoperative rupture of aneurysms are challenging for neurosurgeons and anaesthetists alike. Mechanical and non-mechanical methods to reduce blood flow into aneurysms are well-recognised techniques to facilitate aneurysm exclusion from the circulation. Mechanical methods like temporary clipping of parent arteries, carotid artery ligation and endovascular balloon occlusion are commonly used in clinical practice. However, non-mechanical techniques such as rapid ventricular pacing and adenosine-induced cardiac standstill with hypotension are still emerging strategies...
July 22, 2017: Neurosurgical Review
https://www.readbyqxmd.com/read/28735346/anatomical-relation-between-nasal-septum-deviation-and-oropharynx-volume-in-different-facial-patterns-evaluated-through-cone-beam-computed-tomography
#2
Ana Márcia Viana Wanzeler, Maria Daniela Oliveira Renda, Maria Eduarda de Oliveira Pereira, Sérgio Melo Alves-Junior, Fabricio Mesquita Tuji
INTRODUCTION: The objective of this study was to establish the anatomical relation between nasal septum deviation (NSD) and oropharynx volume in different facial patterns using cone beam computed tomography (CBCT). METHODS: Ninety CBCT examinations were analyzed. InVivoDental software was used to evaluate cephalometric image reconstructions in terms of facial type, determined from cephalometric measurements indicative of growth direction; the presence of NSD was also evaluated...
July 22, 2017: Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28731802/neurovascular-structures-at-risk-with-curved-retrograde-ttc-fusion-nails
#3
Cesar de Cesar Netto, David Johannesmeyer, Brent Cone, Ibukunoluwa Araoye, Parke William Hudson, Bahman Sahranavard, Michael Johnson, Ashish Shah
BACKGROUND: The purpose of this study was to assess the risk of iatrogenic injury to plantar neurovascular structures of the foot during insertion of a curved retrograde tibiotalocalcaneal (TTC) fusion nail. MATERIAL AND METHODS: Ten below-knee thawed fresh-frozen cadaveric specimens underwent curved retrograde nailing of the ankle. The shortest distance between the nail and the main plantar neurovascular branches and injured structures were recorded during dissection...
July 1, 2017: Foot & Ankle International
https://www.readbyqxmd.com/read/28730223/histopathological-diagnosis-and-its-correlations-with-anatomoclinical-features-surgical-approach-and-postoperative-prognosis-in-sacral-tumors
#4
Oana Ilona David, Corina Veronica Lupaşcu-Ursulescu, Cristian Dumitru Lupaşcu, Aurelia Mihaela Sandu, Victor Dan Eugen Strâmbu, Daniel Alin Cristian, Ştefan Iulian Bedereag, Irina Alexandra Calangea, Elena Violeta Radu, IonuŢ Simion Coman, Vlad Andrei Porojan, Valentin Titus Grigorean
INTRODUCTION: Sacral tumors encompass numerous histopathological types. They represent an uncommon pathology and, when diagnosed, they are often in advanced stage of the disease, becoming a therapeutic challenge. The correct treatment of a sacral tumor should be established by a multidisciplinary team that will assess the exact anatomical, imagistic and histopathological characteristic of the tumors thus choosing an optimal surgical approach while taking into consideration the risk of recurrence...
2017: Romanian Journal of Morphology and Embryology, Revue Roumaine de Morphologie et Embryologie
https://www.readbyqxmd.com/read/28729769/recurrence-and-cancerization-of-ameloblastoma-multivariate-analysis-of-87-recurrent-craniofacial-ameloblastoma-to-assess-risk-factors-associated-with-early-recurrence-and-secondary-ameloblastic-carcinoma
#5
Rong Yang, Zheqi Liu, Sandhya Gokavarapu, Canbang Peng, Tong Ji, Wei Cao
OBJECTIVE: The recurrence and progression of ameloblastoma are unpredictable. Therefore, we examined the influence of clinical factors on recurrence time and analyzed the clinical factors associated with early recurrence and cancerization. We then developed a staging system to predict early recurrence and cancerization. METHODS: All of the primary craniofacial ameloblastoma patients treated in Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine were recorded...
June 2017: Chinese Journal of Cancer Research, Chung-kuo Yen Cheng Yen Chiu
https://www.readbyqxmd.com/read/28728906/surgical-management-of-strabismus-following-choroidal-melanoma-plaque-brachytherapy
#6
Shatha H Alfreihi, Stacy L Pineles, Tara A McCannel, Angelica M Prada, Federico G Velez
PURPOSE: To characterize intraoperative findings, surgical approach, and postoperative outcomes in patients undergoing strabismus surgery following plaque brachytherapy for ocular melanoma. METHODS: The records of all patients who underwent plaque brachytherapy for choroidal melanoma between May 2007 and June 2016 were reviewed retrospectively to identify those who subsequently required strabismus surgery. RESULTS: Of the 461 patients who underwent plaque brachytherapy during the study period, 13 (2...
July 17, 2017: Journal of AAPOS: the Official Publication of the American Association for Pediatric Ophthalmology and Strabismus
https://www.readbyqxmd.com/read/28728152/use-of-the-putamen-as-a-surrogate-anatomical-marker-for-the-internal-segment-of-the-globus-pallidus-in-deep-brain-stimulation-surgery
#7
John A Thompson, Dali Yin, Steven G Ojemann, Aviva Abosch
OBJECTIVE: The success of deep brain stimulation (DBS) of the internal segment of the globus pallidus (GPi) depends on accurately placing the electrode into the GPi motor territory. Direct targeting can be difficult as GPi laminar borders are not always clearly identifiable on MRI. Here, we report a method for using the putamen (PUT) as a surrogate anatomical marker to target the GPi. METHODS: We developed a PUT-based GPi targeting using the FGATIR (fast gray matter acquisition T1-weighted inversion recovery) MRI sequence and compared it with consensus coordinate-based indirect targeting...
July 21, 2017: Stereotactic and Functional Neurosurgery
https://www.readbyqxmd.com/read/28728081/brain-state-dependent-recruitment-of-high-frequency-oscillations-in-the-human-hippocampus
#8
Pablo Billeke, Tomas Ossandon, Marcelo Stockle, Marcela Perrone-Bertolotti, Philippe Kahane, Jean-Philippe Lachaux, Pablo Fuentealba
Ripples are high-frequency bouts of coordinated hippocampal activity believed to be crucial for information transfer and memory formation. We used intracortical macroelectrodes to record neural activity in the human hippocampus of awake subjects undergoing surgical treatment for refractory epilepsy and distinguished two populations of ripple episodes based on their frequency spectrum. The phase-coupling of one population, slow ripples (90-110 Hz), to cortical delta oscillations was differentially modulated by cognitive task; whereas the second population, fast ripples (130-170 Hz), was not seemingly correlated to local neural activity...
June 23, 2017: Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
https://www.readbyqxmd.com/read/28727776/language-related-differences-of-the-sustained-response-evoked-by-natural-speech-sounds
#9
Christina Siu-Dschu Fan, Xingyu Zhu, Hans Günter Dosch, Christiane von Stutterheim, André Rupp
In tonal languages, such as Mandarin Chinese, the pitch contour of vowels discriminates lexical meaning, which is not the case in non-tonal languages such as German. Recent data provide evidence that pitch processing is influenced by language experience. However, there are still many open questions concerning the representation of such phonological and language-related differences at the level of the auditory cortex (AC). Using magnetoencephalography (MEG), we recorded transient and sustained auditory evoked fields (AEF) in native Chinese and German speakers to investigate language related phonological and semantic aspects in the processing of acoustic stimuli...
2017: PloS One
https://www.readbyqxmd.com/read/28727377/laparoscopic-pectopexy-initial-experience-of-single-center-with-a-new-technique-for-apical-prolapse-surgery
#10
Ahmet Kale, Alper Biler, Hasan Terzi, Taner Usta, Ebru Kale
OBJECTIVE: To share our first experience with laparoscopic pectopexy, a new technique for apical prolapse surgery, and to evaluate the feasibility of this technique. MATERIALS AND METHODS: Seven patients with apical prolapse underwent surgery with laparoscopic pectopexy. The lateral parts of the iliopectineal ligament were used for a bilateral mesh fixation of the descended structures. The medical records of the patients were reviewed, and the short-term clinical outcomes were analyzed...
June 14, 2017: International Braz J Urol: Official Journal of the Brazilian Society of Urology
https://www.readbyqxmd.com/read/28726243/the-effect-of-near-peer-tutoring-on-medical-students-performance-in-anatomical-and-physiological-sciences
#11
Katrina Morgan, Emily E Northey, Mohammed K Khalil
INTRODUCTION: Healthcare professional schools across the world are implementing near-peer tutoring (NPT) programs owing to numerous benefits to both tutors and tutees. This study determined whether higher attendance at NPT sessions led to improvements in course grades for high and low performing students. METHODS: Fourth-year medical students used the USMLE Step 1 question format to tutor first-year medical students during the second half of the Structure and Function (SF) module, i...
July 20, 2017: Clinical Anatomy
https://www.readbyqxmd.com/read/28725004/shift-of-large-scale-atmospheric-systems-over-europe-during-late-mis-3-and-implications-for-modern-human-dispersal
#12
Igor Obreht, Ulrich Hambach, Daniel Veres, Christian Zeeden, Janina Bösken, Thomas Stevens, Slobodan B Marković, Nicole Klasen, Dominik Brill, Christoph Burow, Frank Lehmkuhl
Understanding the past dynamics of large-scale atmospheric systems is crucial for our knowledge of the palaeoclimate conditions in Europe. Southeastern Europe currently lies at the border between Atlantic, Mediterranean, and continental climate zones. Past changes in the relative influence of associated atmospheric systems must have been recorded in the region's palaeoarchives. By comparing high-resolution grain-size, environmental magnetic and geochemical data from two loess-palaeosol sequences in the Lower Danube Basin with other Eurasian palaeorecords, we reconstructed past climatic patterns over Southeastern Europe and the related interaction of the prevailing large-scale circulation modes over Europe, especially during late Marine Isotope Stage 3 (40,000-27,000 years ago)...
July 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28723734/transcanalicular-diode-laser-assisted-revision-surgery-for-failed-dacryocystorhinostomy-with-or-without-distal-or-common-canalicular-obstruction
#13
Je Moon Yoon, Seung Wan Nam, Kyung In Woo, Yoon-Duck Kim
PURPOSE: To report the outcomes of transcanalicular diode laser-assisted revision surgery for failed dacryocystorhinostomy with/without distal or common canalicular obstruction. METHODS: The medical records and recorded videos of consecutive transcanalicular diode laser-assisted revision surgeries performed for failed dacryocystorhinostomy between May 2011 and May 2015 were reviewed. Cases of unavailability of video and cases lost to follow up after surgery were excluded from the study...
July 18, 2017: Ophthalmic Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28721091/comparison-of-single-injection-ultrasound-guided-approach-versus-multilevel-landmark-based-approach-for-thoracic-paravertebral-blockade-for-breast-tumor-resection-a-retrospective-analysis-at-a-tertiary-care-teaching-institution
#14
Jagroop Singh Saran, Amie L Hoefnagel, Kristin A Skinner, Changyong Feng, Daryl Irving Smith
BACKGROUND: The role of thoracic paravertebral blockade (TPVB) in decreasing opioid requirements in breast cancer surgery is well documented, and there is mounting evidence that this may improve survival and reduce the rate of malignancy recurrence following cancer-related mastectomy. We compared the two techniques currently in use at our institution, the anatomic landmark-guided (ALG) multilevel versus an ultrasound-guided (USG) single injection, to determine an optimal technique. METHODS: We retrospectively reviewed records of patients who received TPVB from January 2013 to December 2014...
2017: Journal of Pain Research
https://www.readbyqxmd.com/read/28719974/the-accuracy-of-common-hand-injections-with-and-without-ultrasound-an-anatomical-study
#15
Philip To, Kaylan N McClary, Micah K Sinclair, Brittany A Stout, Mohab Foad, Shannon Hiratzka, Peter J Stern
BACKGROUND: The aim of the study is to determine the accuracy of hand injections with and without the aid of ultrasound (U/S) into the carpal tunnel, thumb carpometacarpal (CMC) joint, first dorsal compartment (DC) and the radiocarpal (RC) joint. METHODS: Four participants of various level of experience injected the carpal tunnel, thumb CMC, first DC, and RC joint into 40 fresh frozen cadaver specimens with blue dye and radiographic contrast. Participants 1 and 2 were injected without U/S guidance, and participants 3 and 4 were injected with U/S guidance...
February 1, 2017: Hand: Official Journal of the American Association for Hand Surgery
https://www.readbyqxmd.com/read/28718906/a-retrospective-analysis-of-the-effectiveness-of-anterior-pelvic-organ-prolapse-repair-with-prolift-versus-elevate-vaginal-mesh
#16
Isabel Barros-Pereira, Alexandre Valentim-Lourenço, Andreia Fonseca, Bruna Melo, Alexandra Henriques, Ana Ribeirinho
OBJECTIVE: To compare the effectiveness of anterior pelvic organ prolapse (POP) repair using Prolift (Ethicon, Somerville, NJ, USA) or Elevate (American Medical Systems, Minnetonka, MN, USA) vaginal mesh at 12 months of follow-up. METHODS: A retrospective study was undertaken using the records for the first 50 Prolift procedures in 2007-2009 and the first 50 Elevate procedures in 2013-2015 performed at a tertiary urogynecology unit in Lisbon, Portugal. Postoperative follow-up occurred at 3, 6, and 12 months...
July 18, 2017: International Journal of Gynaecology and Obstetrics
https://www.readbyqxmd.com/read/28718315/ulnar-styloid-base-fractures-cause-distal-radioulnar-joint-instability-in-a-cadaveric-model
#17
Tyler S Pidgeon, Joseph J Crisco, Gregory R Waryasz, Douglas C Moore, Manuel F DaSilva
BACKGROUND: The deep portion of the distal radioulnar ligaments (DRUL) inserts on the ulnar fovea and is the most important stabilizer of the distal radioulnar joint (DRUJ). Ulnar styloid base fractures that include the ulnar fovea may cause DRUJ instability. METHODS: DRUJ stability in pronosupination was evaluated in 12 fresh-frozen upper extremities (4 female) aged 52 to 68 years (mean: 58.8 years) using a custom fixture, which allowed free rotation of the radius around the fixed ulna...
January 1, 2017: Hand: Official Journal of the American Association for Hand Surgery
https://www.readbyqxmd.com/read/28718309/intra-articular-fracture-of-the-base-of-the-first-metacarpal-bone-treatment-through-a-volar-approach
#18
Violeta Levy, Marcelo Mazzola, Martín Gonzalez
BACKGROUND: Management of Bennett fractures has been controversial. Early reports supported closed reduction and casting with or without percutaneous pinning. Later, open reduction and internal fixation was advocated. The purpose of this article is to assess the surgical treatment using a direct volar approach. METHODS: Between March 2008 and December 2014, 21 patients with intra-articular first metacarpal fractures displaced more than 1 mm were operated on using a direct volar approach...
January 1, 2017: Hand: Official Journal of the American Association for Hand Surgery
https://www.readbyqxmd.com/read/28717635/the-fabrication-of-a-customized-occlusal-splint-based-on-the-merging-of-dynamic-jaw-tracking-records-cone-beam-computed-tomography-and-cad-cam-digital-impression
#19
Katerina Aslanidou, Chung How Kau, Christos Vlachos, Tayem Abou Saleh
OBJECTIVES: The aim of this case report was to present the procedure of fabricating a customized occlusal splint, through a revolutionary software that combines cone beam computed tomography (CBCT) with jaw motion tracking (JMT) data and superimposes a digital impression. MATERIALS AND METHODS: The case report was conducted on a 46-year-old female patient diagnosed with the temporomandibular disorder. A CBCT scan and an optical impression were obtained. The range of the patient's mandibular movements was captured with a JMT device...
July 2017: Journal of Orthodontic Science
https://www.readbyqxmd.com/read/28716962/gamma-oscillations-in-the-rat-ventral-striatum-originate-in-the-piriform-cortex
#20
James E Carmichael, Jimmie M Gmaz, Matthijs A A van der Meer
Local field potentials (LFPs) recorded from the human and rodent ventral striatum (vStr) exhibit prominent, behaviorally relevant gamma-band oscillations. These oscillations are related to local spiking activity and transiently synchronize with anatomically related areas, suggesting a possible role in organizing vStr activity. However, the origin of vStr gamma is unknown. We recorded vStr gamma oscillations across a 1.4mm(2) grid spanned by 64 recording electrodes as male rats rested and foraged for rewards, revealing a highly consistent power gradient originating in the adjacent piriform cortex...
July 17, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
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