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https://www.readbyqxmd.com/read/29027690/ultrasound-guided-posterior-femoral-cutaneous-nerve-block-a-cadaveric-study
#1
Christopher S Johnson, Rebecca L Johnson, Adam D Niesen, David E Stoike, Wojciech Pawlina
OBJECTIVES: To identify any anatomic barriers to local anesthetic spread between the sciatic nerve (SN) and the posterior femoral cutaneous nerve (PFCN) at the level of the infragluteal crease and to describe a potential technique for an ultrasound (US)-guided subgluteal PFCN block in a cadaveric model. METHODS: Bilateral US-guided subgluteal injections of a colored latex solution were performed around the SN (15 mL) and PFCN (10 mL) in 4 unembalmed cadavers, for a total of 8 cadaver thighs...
October 13, 2017: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/29026818/variations-in-the-anatomical-structures-of-the-guyon-canal
#2
Zahir T Fadel, Osama A Samargandi, David T Tang
BACKGROUND: Compression neuropathy of the ulnar nerve at the Guyon canal is commonly seen by hand surgeons. Different anatomical variations of structures related to the Guyon canal have been reported in the literature. A thorough knowledge of the normal contents and possible variations is essential during surgery and exploration. OBJECTIVES: To review the recognized anatomical variations within and around the Guyon canal. METHODS: This study is a narrative review in which relevant papers, clinical studies, and anatomical studies were selected by searching electronic databases (PubMed and EMBASE)...
May 2017: Plastic Surgery
https://www.readbyqxmd.com/read/29023806/the-percutaneous-toxicokinetics-of-vx-in-a-damaged-skin-porcine-model-and-the-evaluation-of-woundstat%C3%A2-as-a-topical-decontaminant
#3
Helen Lydon, Charlotte Hall, Hazem Matar, Christopher Dalton, J Kevin Chipman, John S Graham, Robert P Chilcott
This study used a damaged skin, porcine model to evaluate the in vivo efficacy of WoundStat™ for the decontamination of superficial, nerve agent-contaminated wounds. Anaesthetized animals were randomly assigned to either control (n = 7), no decontamination (n = 12) or WoundStat™ (n = 12) treatment groups. Pigs were exposed to a 5× LD50 dose of neat, radiolabelled S-[2-(diisopropylamino)ethyl]-O-ethyl methyl-phosphonothioate (VX; or equivalent volume of sterile saline for the control group) via an area of superficially damaged skin on the ear...
October 10, 2017: Journal of Applied Toxicology: JAT
https://www.readbyqxmd.com/read/29022282/analysis-of-five-cases-of-human-herpesvirus-6-myelitis-among-121-cord-blood-transplantations
#4
Toshimitsu Ueki, Kenichi Hoshi, Yuki Hiroshima, Masahiko Sumi, Naoaki Ichikawa, Masao Ogata, Takako Satou, Takahiro Fukuda, Hikaru Kobayashi
Reports of myelitis associated with human herpesvirus-6 (HHV-6) following allogeneic transplantation are rare. Of 121 cases of cord blood transplantation (CBT) performed at Nagano Red Cross Hospital, five cases (4.1%) of HHV-6 myelitis developed at around the time of engraftment. The major symptom identified in all five patients was superficial pain or pruritus linked to segmental levels of the spinal cord. Other identified symptoms were fever or low-grade fever in all five patients, autonomic nerve disorder in four patients, bladder and rectal disturbance in two patients, and extrapyramidal disorder in two patients...
October 11, 2017: International Journal of Hematology
https://www.readbyqxmd.com/read/29020710/fluorescent-imaging-evaluation-of-lidocaine-distribution-following-bier-block-in-the-upper-extremity
#5
Andrea L Gale, Shari R Liberman, Suzanne Berry, Dmitry Zavlin, Anthony Echo
INTRODUCTION: Bier block regional anesthesia has been used as an alternative to general anesthesia for years. Despite multiple theories and multiple techniques to delineate the location of the action of lidocaine during Bier block anesthesia, there has not been a consensus on the location of action. The purpose of this study was to use fluorescent imaging to further investigate the site of action of lidocaine during Bier block. MATERIALS AND METHODS: Three patients with carpal tunnel syndrome underwent open carpal tunnel release with Bier block anesthesia performed in the standard fashion with 1cc of Indocyanine green (IcG) mixed with lidocaine...
October 12, 2017: Surgical Technology International
https://www.readbyqxmd.com/read/29018652/anastomotic-aneurysm-formation-after-high-flow-bypass-surgery-a-case-report-with-histopathological-study
#6
Tatsuya Uchida, Masanori Yoshino, Shinji Ito, Takayuki Hara
Bypass surgery is often used in the treatment of large and giant aneurysms. Major complications that often arise during the perioperative period include cranial nerve palsy, ischemic complications, and hyperperfusion. However, there have been a few reports about late onset complications such as anastomotic aneurysms. In particular, anastomotic aneurysm after high flow bypasses has never been reported. A 57-year-old woman who had been suffering from left eye pain was diagnosed with a large aneurysm of the left internal carotid artery (ICA) in the cavernous portion...
October 2017: NMC Case Rep J
https://www.readbyqxmd.com/read/29018508/gait-improvements-after-peroneal-or-tibial-nerve-transfer-in-patients-with-foot-drop-a-retrospective-study
#7
Rahul K Nath, Chandra Somasundaram
Background: Injury to the common peroneal nerve disrupts the motor control pathway to ankle dorsiflexors and evertors, as well as toe extensors, resulting in pathological gait and foot drop. Direct external compression on the fibular head is the most frequent cause of peroneal nerve impairment and has poor prognosis. Methods and Patients: Here, we report the surgical outcome of 21 patients with foot drop (9 males and 12 females) who underwent nerve transfer procedure of either the superficial peroneal nerve or the tibial nerve fascicles to the motor branch of the tibialis anterior and to the deep peroneal nerve...
2017: Eplasty
https://www.readbyqxmd.com/read/28991373/novel-enriched-pathways-in-superficial-malignant-peripheral-nerve-sheath-tumors-mpnst-and-spindle-desmoplastic-melanomas-sdm
#8
George Jour, Nicole K Andeen, Rami Al -Rohil, Phyu P Aung, Meenakshi Mehrotra, Dzifa Duose, Benjamin Hoch, Zolt Argenyi, Rajyalakshmi Luthra, Ignacio I Wistuba, Victor G Prieto
Superficial malignant peripheral nerve sheath tumor (MPNST) is a rare, soft tissue neoplasm that shares morphological features and some molecular events with spindle and desmoplastic melanoma (SDM). Herein we sought to identify molecular targets for therapy using targeted RNA/DNA sequencing and gene expression of key immunological players. DNA and RNA from formalin-fixed, paraffin-embedded (FFPE) tissue were extracted and processed. Massive high-throughput deep parallel sequencing was performed using the Oncomine comprehensive panel enabling detection of relevant SNVs, CNVs, gene fusions, and indels from 143 unique genes on the Ion torrent sequencer for clinical trial research programs...
October 9, 2017: Journal of Pathology
https://www.readbyqxmd.com/read/28990665/transcutaneous-electrical-nerve-stimulation-tens-for-fibromyalgia-in-adults
#9
REVIEW
Mark I Johnson, Leica S Claydon, G Peter Herbison, Gareth Jones, Carole A Paley
BACKGROUND: Fibromyalgia is characterised by persistent, widespread pain; sleep problems; and fatigue. Transcutaneous electrical nerve stimulation (TENS) is the delivery of pulsed electrical currents across the intact surface of the skin to stimulate peripheral nerves and is used extensively to manage painful conditions. TENS is inexpensive, safe, and can be self-administered. TENS reduces pain during movement in some people so it may be a useful adjunct to assist participation in exercise and activities of daily living...
October 9, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28987229/controversies-in-oral-and-maxillofacial-oncology
#10
REVIEW
Jacob G Yetzer
Imaging studies are essential components of tumor diagnosis, staging, assessing tumor response to neoadjuvant and adjuvant therapies, and postoperative surveillance on completion of definitive treatment. Treatment of early stage clinically node negative oral cavity squamous cell carcinoma is controversial. Approximately 3% of all head and neck tumors arise within the parotid gland and most often within the superficial lobe, lateral to the facial nerve; about 80% are benign and most are pleomorphic adenoma. In patients with dry eyes failing multiple other treatment modalities and facing ongoing pain and loss of vision, microvascular transplant of the submandibular gland is a viable option...
November 2017: Oral and Maxillofacial Surgery Clinics of North America
https://www.readbyqxmd.com/read/28986994/microvasculature-dropout-detected-by-the-optical-coherence-tomography-angiography-in-nonarteritic-anterior-ischemic-optic-neuropathy
#11
Yi Song, Jing-Yu Min, Lei Mao, Yuan-Yuan Gong
OBJECTIVE: To investigate microcirculation characteristics of peripapillary superficial retina and optic disc in eyes with nonarteritic anterior ischemic optic neuropathy (NAION) using optical coherence tomography angiography (OCTA). METHODS: Forty-one eyes of 30 NAION patients and 30 eyes of 30 normal subjects were evaluated with OCTA (AngioVue, Optovue). The whole vessel density, inside disc vessel density, peripapillary vessel density, and vessel densities based on the sectorial division in the nerve head mode peripapillary superficial retina and RPC mode optic disc were measured respectively...
October 7, 2017: Lasers in Surgery and Medicine
https://www.readbyqxmd.com/read/28975191/extracapsular-dissection-vs-superficial-parotidectomy-of-benign-parotid-lesions-surgical-outcomes-and-cost-effectiveness-analysis
#12
Masanari G Kato, Evren Erkul, Shaun A Nguyen, Terry A Day, Joshua D Hornig, Eric J Lentsch, M Boyd Gillespie
Importance: The clinical implications of extracapsular dissection over superficial parotidectomy are controversial and limited in data on cost-effectiveness. Objective: To compare extracapsular dissection with superficial parotidectomy for benign parotid tumors with respect to surgical outcomes and cost-effectiveness. Design, Setting, and Participants: This was a retrospective medical record review and cost-effectiveness analysis performed from August 2012 to November 2015 at a tertiary care institution...
September 21, 2017: JAMA Otolaryngology—Head & Neck Surgery
https://www.readbyqxmd.com/read/28972661/sonography-guided-recording-for-superficial-peroneal-sensory-nerve-conduction-study
#13
Ki Hoon Kim, Byung Kyu Park, Dong Hwee Kim, Yuntae Kim
INTRODUCTION: We sought to establish the optimal recording position for antidromic conduction of the superficial peroneal nerve (SPN) by using ultrasonography (USG). METHODS: The sensory nerve action potentials (SNAPs) of the intermediate dorsal cutaneous nerve (IDCN) and medial dorsal cutaneous nerve (MDCN) in 64 limbs of 32 healthy participants were recorded (nerve conduction study [NCS]-1). Both nerves were identified by using USG, and the SNAPs were obtained from the USG-guided repositioned electrodes (NCS-2)...
October 3, 2017: Muscle & Nerve
https://www.readbyqxmd.com/read/28960445/vascular-branches-from-cutaneous-nerve-of-the-forearm-and-hand-application-to-better-understanding-raynaud-s-disease
#14
K Umemoto, M Ohmichi, Y Ohmichi, T Yakura, N Hammer, D Mizuno, M Naito, T Nakano
INTRODUCTION: Cutaneous nerves have branches called vascular branches (VBs) that reach arteries. VBs are thought to be involved in arterial constriction, and this is the rationale for periarterial sympathectomy as a treatment option for Raynaud's disease. However, the branching patterns and distribution areas of the VBs remain largely unclear. The aim of the present study was to investigate the anatomical structures of the VBs of the cutaneous nerves. MATERIALS AND METHODS: Forty hands and forearms were examined to assess the branching patterns and distribution areas of the VBs of the superficial branch of the radial nerve (SBRN), the lateral antebrachial cutaneous nerve (LACN), the medial antebrachial cutaneous nerve (MACN), and the palmar cutaneous branch of the ulnar nerve (PCUN)...
September 29, 2017: Clinical Anatomy
https://www.readbyqxmd.com/read/28956150/safe-zones-and-a-technical-guide-for-cerclage-wiring-of-the-femur-a-computed-topographic-angiogram-cta-study
#15
Theerachai Apivatthakakul, P Siripipattanamongkol, Chang-Wug Oh, K Sananpanich, C Phornphutkul
INTRODUCTION: Cerclage wiring for reduction of complex femoral shaft fractures can create iatrogenic vascular injury. OBJECTIVE: To describe the anatomical relation of blood vessels to the femur and develop a technical guide for safe passage of cerclage wire. MATERIALS AND METHODS: CT lower-limb angiographs (CTA) of 80 patients were reviewed and analysed to identify the superficial femoral artery (SFA) and the deep femoral artery (DFA) as well as the relation of those arteries to the femoral cortex...
September 27, 2017: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/28953606/an-analysis-of-safety-and-adverse-events-following-cochlear-implantation-in-children-under-12-months-of-age
#16
Yesul Kim, Vijay A Patel, Huseyin Isildak, Michele M Carr
OBJECTIVE: To determine perioperative morbidity of children ≤12 months undergoing cochlear implantation (CI). STUDY DESIGN: Retrospective analysis using the American College of Surgeons National Surgical Quality Improvement Program Pediatric Database (ACS-NSQIP-P). SETTING: General acute care children's hospitals, children's hospitals within larger hospitals, specialty children's hospitals, and general acute care hospitals with a pediatric wing...
September 26, 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/28952393/ultrahigh-frequency-ultrasound-imaging-of-the-hand-a-new-diagnostic-tool-for-hand-surgery
#17
Stephen L Viviano, Laurel K Chandler, Jonathan D Keith
BACKGROUND: Ultrasonography is a cost-effective, noninvasive, and expedient imaging modality with numerous clinical applications. Conventional ultrasound uses transducers with frequencies that range from 5 to 12 MHz. However, ultrahigh frequency ultrasound (UHFUS) is capable of producing frequencies up to 70 MHz, which can achieve tissue resolution up to 30 μm. The purpose of our study is to present the capabilities of a novel technology and to describe its possible clinical applications for hand surgery...
September 1, 2017: Hand: Official Journal of the American Association for Hand Surgery
https://www.readbyqxmd.com/read/28952355/comparison-of-posterior-approach-with-intramedullary-nailing-versus-lateral-transfibular-approach-with-fixed-angle-plating-for-tibiotalocalcaneal-arthrodesis
#18
Ryan P Mulligan, Samuel B Adams, Mark E Easley, James K DeOrio, James A Nunley
BACKGROUND: A variety of operative approaches and fixation techniques have been described for tibiotalocalcaneal (TTC) arthrodesis. The intramedullary (IM) nail and lateral, fixed-angle plating are commonly used because of ease of use and favorable biomechanical properties. A lateral, transfibular (LTF) approach allows for direct access to the tibiotalar and subtalar joints, but the posterior, Achilles tendon-splitting (PATS) approach offers a robust soft tissue envelope. The purpose of this study was to compare the results of TTC arthrodesis with either a PATS approach with IM nailing or LTF approach with fixed-angle plating...
September 1, 2017: Foot & Ankle International
https://www.readbyqxmd.com/read/28951641/midterm-radiologic-and-functional-outcomes-of-minimally-invasive-fixation-of-unstable-pelvic-fractures-using-anterior-internal-fixator-infix-and-percutaneous-iliosacral-screws
#19
Ajoy Prasad Shetty, Aju Bosco, Ramesh Perumal, Jeyaramaraju Dheenadhayalan, Shanmuganathan Rajasekaran
BACKGROUND: Anterior pelvic external fixation is associated with pin site infections, aseptic loosening with loss of reduction, frame bulkiness hindering patient mobilization and consequent difficulties in inpatient nursing. We performed a single-center prospective series to evaluate the feasibility, safety, limitations and midterm radiologic and functional outcomes of an alternative minimally invasive pelvic internal fixation technique using an anterior subcutaneous pelvic internal fixator (INFIX) and percutaneous iliosacral screws in unstable pelvic ring fractures...
July 2017: Journal of Clinical Orthopaedics and Trauma
https://www.readbyqxmd.com/read/28939538/incremental-value-of-multiparametric-whole-body-mr-imaging-over-whole-spine-magnetic-resonance-imaging-in-neurofibromatosis-type-i-patients
#20
Lihua Zhang, Dessouky Riham, Yin Xi, Avneesh Chhabra, Lu Q Le
AIM: To determine the incremental value of multiparametric whole-body (WBMRI) over whole spine magnetic resonance imaging (WSMRI) in neurofibromatosis type1 (NF1) patients. METHODS: A consecutive series of 30 patients with known NF1 underwent WBMRI screening using anatomic, diffusion and contrast imaging over a 30-month period. 13/30 patients also had WSMRI. Tumors were classified per location and morphology and were software segmented to determine numbers and volumes...
September 19, 2017: World Neurosurgery
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