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https://www.readbyqxmd.com/read/28524060/high-frequency-ultrasound-imaging-of-cutaneous-neurofibroma-in-patients-with-neurofibromatosis-type-i
#1
Delphine Raffin, Julia Zaragoza, Gabriella Georgescou, Youssef Mourtada, Annabel Maruani, Frédéric Ossant, Frédéric Patat, Loïc Vaillant, Laurent Machet
Neurofibromas (NFs) are benign tumours arising from a nerve sheath, which are present in nearly all patients with neurofibromatosis type 1 (NF1). High-frequency ultrasound (HFU) systems, using frequencies over 20 MHz, were developed to improve visualization of skin tumours by means of increased resolution. To describe NFs by using HFU in patients with NF1. Anonymized HFU (25-MHz) images of NFs were randomized. Initially, two dermatologist investigators, with experience in HFU imaging of the skin, together described the ultrasound images and established eight criteria for NFs...
May 19, 2017: European Journal of Dermatology: EJD
https://www.readbyqxmd.com/read/28523345/endovenous-laser-ablation-therapy-in-children-applications-and-outcomes
#2
Premal A Patel, Alex M Barnacle, Sam Stuart, Joao G Amaral, Philip R John
BACKGROUND: Endovenous laser ablation is well recognized as the first-line treatment for superficial venous reflux with varicose veins in adults. It is not widely reported and is not an established practice in pediatric patients. OBJECTIVE: To illustrate a variety of pediatric venous conditions in which endovenous laser ablation can be utilized and to demonstrate its feasibility and safety in children. MATERIALS AND METHODS: We conducted a retrospective review of endovenous laser ablation procedures performed between January 2007 and July 2014 at two large pediatric institutions...
May 18, 2017: Pediatric Radiology
https://www.readbyqxmd.com/read/28520583/focal-capillary-dropout-associated-with-optic-disc-drusen-using-optical-coherence-tomographic-angiography
#3
Eric D Gaier, Joseph F Rizzo, John B Miller, Dean M Cestari
Optic disc drusen may be a cause of visual field defects and visual loss. The mechanism by which this occurs is unclear. We report a patient who developed decreased vision in the right eye and was found to have a heavy burden of superficial optic disc drusen. Optical coherence tomography (OCT) confirmed focal retinal nerve fiber layer thinning that corresponded with the distribution of drusen. OCT angiography, with superficial laminar segmentation, showed focal capillary attenuation overlying the most prominent drusen...
May 4, 2017: Journal of Neuro-ophthalmology: the Official Journal of the North American Neuro-Ophthalmology Society
https://www.readbyqxmd.com/read/28512726/cutaneous-reflex-modulation-during-obstacle-avoidance-under-conditions-of-normal-and-degraded-visual-input
#4
Daniel S Marigold, Andrew J Chang, Kim Lajoie
The nervous system integrates visual input regarding obstacles with limb-based sensory feedback to allow an individual to safely negotiate the environment. This latter source can include cutaneous information from the foot, particularly in the event that limb trajectory is not sufficient and there is an unintended collision with the object. However, it is not clear the extent to which cutaneous reflexes are modified based on visual input. In this study, we first determined if phase-dependent modulation of these reflexes is present when stepping over an obstacle during overground walking...
May 16, 2017: Experimental Brain Research. Experimentelle Hirnforschung. Expérimentation Cérébrale
https://www.readbyqxmd.com/read/28506176/neurolysis-with-amniotic-membrane-nerve-wrapping-for-treatment-of-secondary-wartenberg-syndrome-a-preliminary-report
#5
Michael P Gaspar, Patrick M Kane, Michael M Vosbikian, Constantinos Ketonis, Mark S Rekant
BACKGROUND: Entrapment of the superficial sensory branch of the radial nerve (SRN) commonly results in debilitating pain of the dorsoradial wrist. Symptom relief following SRN neurolysis is often incomplete or temporary due to recurrent perineural scarring. METHODS: We performed a retrospective review with prospective follow-up of all patients with SRN neuropathy who were treated with neurolysis and nerve wrapping using an amnion-based allograft adhesion barrier over a one-year interval...
June 2017: Journal of Hand Surgery Asian-Pacific Volume
https://www.readbyqxmd.com/read/28506173/that-tendon-is-the-median-nerve-perils-of-a-palmaris-longus-deficient-wrist
#6
Colin Yi-Loong Woon, Ramadevi Gourineni, Summer Watkins, Rhea Richardson, Prasad Gourineni
BACKGROUND: To document the course of the median nerve in the distal forearm in palmaris longus (PL) deficient forearms and elucidate features that help distinguish it from the PL. METHODS: In the cadaveric study, 56 cadaveric forearms were dissected and the location and course of the median nerve were documented. In the clinical study, 20 healthy subjects with absent PL were examined with provocative tests to elucidate the PL (Schaeffer's test and Thompson's test), and modified Durkan's and Phalen's tests...
June 2017: Journal of Hand Surgery Asian-Pacific Volume
https://www.readbyqxmd.com/read/28481438/total-versus-superficial-parotidectomy-for-stage-iii-melanoma
#7
Aileen P Wertz, Alison B Durham, Kelly M Malloy, Timothy M Johnson, Carol R Bradford, Scott A McLean
BACKGROUND: The primary purpose of this study was to describe the parotid recurrence rates after superficial and total parotidectomy. METHODS: A retrospective cohort study was performed on patients with cutaneous melanoma metastatic to the parotid gland who underwent parotidectomy from 1998 through 2014. Primary outcome was parotid bed recurrence. Secondary outcomes were facial nerve function postoperatively and at last follow-up. RESULTS: One hundred twenty-nine patients were included in the study...
May 8, 2017: Head & Neck
https://www.readbyqxmd.com/read/28474119/optical-coherence-tomography-angiography-analysis-of-retinal-vascular-plexuses-and-choriocapillaris-in-patients-with-type-1-diabetes-without-diabetic-retinopathy
#8
Adriano Carnevali, Riccardo Sacconi, Eleonora Corbelli, Livia Tomasso, Lea Querques, Gianpaolo Zerbini, Vincenzo Scorcia, Francesco Bandello, Giuseppe Querques
AIMS: To analyze retinal vascular plexuses and choriocapillaris by optical coherence tomography angiography (OCT-A) and retinal nerve fiber layer and ganglion cell layer (GCL) by structural optical coherence tomography (OCT) in patients with type 1 diabetes mellitus (T1DM) without diabetic retinopathy (DR). METHODS: A total of 25 eyes of 25 consecutive T1DM patients without signs of DR were prospectively recruited and compared to 25 healthy subjects (control eyes)...
May 5, 2017: Acta Diabetologica
https://www.readbyqxmd.com/read/28462456/relationship-between-laser-speckle-flowgraphy-and-optical-coherence-tomography-angiography-measurements-of-ocular-microcirculation
#9
Naoki Kiyota, Hiroshi Kunikata, Yukihiro Shiga, Kazuko Omodaka, Toru Nakazawa
PURPOSE: The purpose of this study was to investigate the relationship between laser speckle flowgraphy (LSFG) and optical coherence tomography angiography (OCTA) measurements of ocular microcirculation in normal and open-angle glaucoma (OAG) subjects. METHODS: This study included 18 eyes of 18 OAG patients and ten eyes of ten age-matched healthy controls. LSFG was used to measure mean blur rate (MBR) in the optic nerve head (ONH) vessel area (MV) and tissue area (MT)...
May 1, 2017: Graefe's Archive for Clinical and Experimental Ophthalmology
https://www.readbyqxmd.com/read/28460051/quantitatively-measured-anatomic-location-and-volume-of-optic-disc-drusen-an-enhanced-depth-imaging-optical-coherence-tomography-study
#10
Lasse Malmqvist, Anne-Sofie Wessel Lindberg, Vedrana Andersen Dahl, Thomas Martini Jørgensen, Steffen Hamann
Purpose: Optic disc drusen (ODD) are found in up to 2.4% of the population and are known to cause visual field defects. The purpose of the current study was to investigate how quantitatively estimated volume and anatomic location of ODD influence optic nerve function. Methods: Anatomic location, volume of ODD, and peripapillary retinal nerve fiber layer and macular ganglion cell layer thickness were assessed in 37 ODD patients using enhanced depth imaging optical coherence tomography...
May 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28459419/complications-of-surgical-release-break-of-carpal-tunnel-syndrome-a-systematic-review
#11
Gregory K Faucher, Jimmy H Daruwalla, John G Seiler
A systematic review of the literature was performed to compare complications of endoscopic and open carpal tunnel release. Techniques were further subdivided into traditional open, limited open, single-portal endoscopic, and two-portal endoscopic. This study also compared incidence of complications in each group based on chronological periods of data collection. The study found that endoscopic release has a higher incidence of transient nerve injury. There was also an increased incidence of superficial palmar arch injuries in the endoscopic group in the 1960-1990 time period as compared with the 1991-2000 and 2001-2012 periods...
2017: Journal of Surgical Orthopaedic Advances
https://www.readbyqxmd.com/read/28446044/extracapsular-dissection-for-warthin-tumor-in-the-tail-of-parotid-gland
#12
Dong Hoon Lee, Tae Mi Yoon, Joon Kyoo Lee, Sang Chul Lim
CONCLUSIONS: Extracapsular dissection conferred the advantage of reduced operation time and morbidity without any recurrence, and it could be considered as the treatment of choice for Warthin tumors in the tail of the parotid gland. OBJECTIVE: The purpose of this study is to confirm the appropriate surgical procedure for Warthin tumor in the tail of the parotid gland, by comparing the results of extracapsular dissection and superficial parotidectomy. MATERIALS AND METHODS: The medical records of 72 patients with Warthin tumor in the tail of the parotid gland who underwent surgery between January 2006 and December 2016 were retrospectively reviewed...
April 27, 2017: Acta Oto-laryngologica
https://www.readbyqxmd.com/read/28442857/influence-of-blood-flow-on-the-neuroma-formation-after-transposition-of-the-nerve-stump-into-vein-experimental-and-clinical-study
#13
Hossam El-Din Ali Ismail, Mohamed Ali Kasem, Fatma El-Hossiney Mostafa
We study the influence of blood flow on the neuroma formation after transposition of the nerve stump into a vein. A total of 30 rats were divided into two groups. In group (I), a 10-mm segment of the femoral vein was excluded from the blood stream. A venotomy was performed in the middle of this segment. The proximal nerve stump of femoral nerve was transposed into the lumen of the femoral vein via a venotomy and held with an epineural suture through the venous wall. In group (II), the same technique was used as in group (I) but without exclusion of the vein segment from blood flow...
April 2017: Journal of Hand and Microsurgery
https://www.readbyqxmd.com/read/28439704/treatment-of-type-b-pelvic-fracture-using-anterior-subcutaneous-internal-fixator-with-triple-pedicle-screws-a-new-surgical-technique
#14
Qian Wang, Qiugen Wang, Jiandong Wang
INTRODUCTION: To evaluate the clinical outcomes of anterior subcutaneous internal fixator using triple pedicle screws (ASIF/TPS) in the treatment of unstable type B pelvic fracture compared with open reduction internal fixation (ORIF). MATERIALS AND METHODS: This was a retrospective cohort study of 26 patients with type B unstable fractures that underwent ASIF/TPS and 26 similar patients that underwent ORIF using plates and screws. Intraoperative blood loss, operating time, and post operation hospitalization duration were compared...
April 24, 2017: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/28439689/divergent-schwannoma-like-phenotype-in-a-pleomorphic-adenoma
#15
Srinivasa R Chandra, Farah Karim, Yeshwant B Rawal
The schwannoma-like pleomorphic adenoma is a rare histopathological variant of the pleomorphic adenoma. Five previous reports with seven cases exist in English language literature. These tumors present in the parotid gland most commonly. Intraparotid schwannomas of the facial nerve and schwannomas with glandular differentiation have also been reported. A 60-year-old male presented with an asymptomatic swelling over the left angle of the mandible. The swelling had been present for about 12 years with a recent increase in size...
April 24, 2017: Head and Neck Pathology
https://www.readbyqxmd.com/read/28434966/diagnostic-biopsy-of-a-motor-branch-of-the-superficial-peroneal-nerve-to-the-peroneus-longus-a-convenient-alternative-for-motor-nerve-biopsy
#16
Randy S D'Amico, Christopher J Winfree
INTRODUCTION: Motor nerve biopsy is performed to supplement clinical, serological, and imaging data in the work-up of neuropathies of unknown origin, especially when motor neuron disease is suspected. METHODS: We describe a surgical technique for biopsy of a motor branch of the superficial peroneal nerve innervating the peroneus longus muscle. RESULTS: Three patients presented with weakness concerning for motor neuropathy and underwent biopsy of a motor branch of the superficial peroneal nerve innervating the peroneus longus muscle...
April 18, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28434472/tai-chi-with-mental-imagery-theory-improves-soleus-h-reflex-and-nerve-conduction-velocity-in-patients-with-type-2-diabetes
#17
Abdulrahman Alsubiheen, Jerrold Petrofsky, Noha Daher, Everett Lohman, Edward Balbas, Haneul Lee
OBJECTIVES: Diabetes is a disease that leads to damage to the peripheral nerves which may eventually cause balance instability. The purpose of this study was to determine the effect of 8 weeks of Tai Chi (TC) training combined with mental imagery (MI) on soleus H-reflex and nerve conduction velocity (NCV) of the sural and superficial peroneal nerves in people with diabetes. DESIGNS: Quasi-experimental, one group pretest-posttest design. SETTING: Human Research Laboratory...
April 2017: Complementary Therapies in Medicine
https://www.readbyqxmd.com/read/28428918/the-safety-of-the-thenar-portal-an-anatomical-study-of-the-thumb-carpometacarpal-arthroscopy
#18
Yong-Wei Pan, Leung-Kim Hung
Purpose To define the localization of the distal course of the motor branches of median nerve (MBMN) and its arborization and its quantitative relationships to the thenar portal of the carpometacarpal (CMC) joint in the hope of evaluating the safety of this portal. Method In 16 embalmed cadaveric upper extremities, the localization of the course of the MBMN and its arborization were defined. In 14 fresh-frozen cadaver upper extremities, the CMC arthroscopic portals, 1-U, 1-R, and a thenar portal, were established, after which the limbs were dissected...
May 2017: Journal of Wrist Surgery
https://www.readbyqxmd.com/read/28419405/optical-coherence-tomography-angiography-features-in-melanocytoma-of-the-optic-nerve
#19
Adriano Carnevali, Lea Querques, Ilaria Zucchiatti, Vincenzo Scorcia, Francesco Bandello, Giuseppe Querques
Optic disc melanocytoma (ODM) is a pigmented tumor with malignant potential characterized clinically as a dark brown to black lesion with feathery margins. The authors report a case of ODM and describe the utility of optical coherence tomography angiography (OCTA) in detecting superficial tumor vascularization. This case report demonstrated the ability of OCTA to reveal the fine abnormal retinal vasculature on the surface of the lesion, a characteristic of ODM, which has been previously correlated with tumor growth...
April 1, 2017: Ophthalmic Surgery, Lasers & Imaging Retina
https://www.readbyqxmd.com/read/28416826/-surgical-technique-and-early-clinical-outcomes-of-direct-anterior-approach-to-total-hip-arthroplasty
#20
M Lv, J Q Zhang, X S Wang, Y Huang, W Li, C Y Zhang
OBJECTIVE: To describe the surgical technique of direct anterior approach to total hip arthroplasty and to report the early clinical outcomes. METHODS: A series of 100 consecutive, unselected patients who had 116 primary total hip arthroplasty surgeries (16 bilateral) done through direct anterior approach from March 11 2015 to June 21 2016 was reviewed. There were 50 male patients and 50 female patients. The average patient age was 51 years, and the average body mass index was 24...
April 18, 2017: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
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