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https://www.readbyqxmd.com/read/29775983/classification-and-microvascular-flap-selection-for-anterior-cranial-fossa-reconstruction
#1
James D Vargo, Wojciech Przylecki, Paul J Camarata, Brian T Andrews
BACKGROUND:  Microvascular reconstruction of the anterior cranial fossa (ACF) creates difficult challenges. Reconstructive goals and flap selection vary based on the defect location within the ACF. This study evaluates the feasibility and reliability of free tissue transfer for salvage reconstruction of low, middle, and high ACF defects. METHODS:  A retrospective review was performed. Reconstructions were anatomically classified as low (anterior skull base), middle (frontal bar/sinus), and high (frontal bone/soft tissue)...
May 18, 2018: Journal of Reconstructive Microsurgery
https://www.readbyqxmd.com/read/29775451/-recurrent-urolithiasis-as-a-symptom-of-primary-hyperparathyroidism-in-a-16-year-old-boy
#2
Monika Wojciechowska, Beata Bieniaś, Aleksandra Sobieszczańska-Droździel, Anna Wieczorkiewicz-Płaza, Iwona Beń-Skowronek, Przemysław Sikora
Primary hyperparathyroidism is one of the most common endocrine diseases, however, it is rare in children. In most cases, it is caused by adenoma of these organs. Its most common complications include urolithiasis, nephrocalcinosis and osteoporosis. CASE REPORT: A 16-year-old patient was admitted to our Clinic because of his first-ever renal colic. The ultrasound examination revealed rightsided hydronephrosis caused by the presence of 9 mm stone in the upper part of the right ureter. In addition, the presence of 8 mm stone in the middle calyx of the left kidney was found...
April 23, 2018: Polski Merkuriusz Lekarski: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/29773434/tinea-blepharo-ciliaris-in-a-13-year-old-girl-caused-by-trichophyton-benhamiae
#3
Fang-Ying Wang, Pei-Lun Sun
Tinea blepharo-ciliaris is a rare form of dermatophyte infection which involves eyelids and associated eyelashes. We report a 13-year-old girl with type I diabetes mellitus who had right eyelid swelling and eyelash loss for two weeks. The lesions were presented as erythematous patches with scales and tiny pustules on the right upper and lower eyelids with broken eyelashes. Two additional annular erythematous patches with scaly active borders were found on her right forearm and right thigh. Microscopic examination of broken eyelashes demonstrated many chains of arthroconidia and hyaline hyphae in an endothrix invasion pattern...
May 14, 2018: Journal de Mycologie Médicale
https://www.readbyqxmd.com/read/29773240/perioperative-risk-factors-that-predict-complications-of-radial-forearm-free-flaps-in-oral-and-maxillofacial-reconstruction
#4
C Wang, G Fu, F Liu, L Liu, M Cao
The aim of the study was to find out what perioperative risk factors predicted complications in patients having reconstructions with radial forearm free flaps (RFFF). We organised a retrospective study of 169 patients (mean (range) age 54 (22-86) years, 100 of whom were female) who had oral and maxillofacial tumours resected, and reconstructed with RFFF, from January 2011-December 2016. We recorded predictive variables, subdivided into: personal and clinical (sex, age, weight, coexisting conditions, history of smoking, radiotherapy, and primary lesions); haemodynamic (perioperative concentrations of haemoglobin and albumin, blood loss, blood transfusion, urinary output (ml), and rate (ml/kg/hour), and infusion rates for crystalloids and colloids (ml/kg/hour, and volumes given intraoperatively and postoperatively for 24hours); and anaesthetic and surgical (American Society of Anesthesiologists(ASA) grade, visual analogue pain score (VAS), and duration of tourniquet and operation)...
May 14, 2018: British Journal of Oral & Maxillofacial Surgery
https://www.readbyqxmd.com/read/29771709/combined-recirculatory-compartmental-population-pharmacokinetic-modeling-of-arterial-and-venous-plasma-s-and-r-ketamine-concentrations
#5
Thomas K Henthorn, Michael J Avram, Albert Dahan, Lars L Gustafsson, Jan Persson, Tom C Krejcie, Erik Olofsen
BACKGROUND: The pharmacokinetics of infused drugs have been modeled without regard for recirculatory or mixing kinetics. We used a unique ketamine dataset with simultaneous arterial and venous blood sampling, during and after separate S(+) and R(-) ketamine infusions, to develop a simplified recirculatory model of arterial and venous plasma drug concentrations. METHODS: S(+) or R(-) ketamine was infused over 30 min on two occasions to 10 healthy male volunteers...
May 16, 2018: Anesthesiology
https://www.readbyqxmd.com/read/29771398/a-cadaveric-study-of-the-mean-distance-of-the-radial-artery-during-the-approach-to-the-first-carpometacarpal-joint
#6
Baris Yildirim, Daniel E Hess, Jesse B Seamon, Matthew L Lyons, A Rashard Dacus
Multiple surgical procedures have been described to treat first carpometacarpal (CMC) arthritis. Although the superiority of one procedure over the others continues to be a controversial topic, they all approach the trapezium and require careful attention to the surrounding structures. One potential complication is injury to the radial artery, which lies in close proximity to the trapezium and is often encountered during surgical approach. Using cadaveric specimens, the authors dissected to identify and isolate the radial artery as it travels in the forearm, wrist, and hand while being careful not to disturb its native course...
May 16, 2018: Orthopedics
https://www.readbyqxmd.com/read/29770150/effect-of-cathodal-transcranial-direct-current-stimulation-on-a-child-with-involuntary-movement-after-hypoxic-encephalopathy
#7
Mayumi Nagai, Naofumi Tanaka, Yutaka Oouchida, Shin-Ichi Izumi
The aim of the study was to investigate the effect of cathodal transcranial direct current stimulation to the supplementary motor area to inhibit involuntary movements of a child. An 8-year-old boy who developed hypoxic encephalopathy after asphyxia at the age of 2 had difficulty in remaining standing without support because of involuntary movements. He was instructed to remain standing with his plastic ankle-foot orthosis for 10 s at three time points by leaning forward with his forearms on a desk. He received cathodal or sham transcranial direct current stimulation to the supplementary motor area at 1 mA for 10 min...
2018: Case Reports in Medicine
https://www.readbyqxmd.com/read/29769457/3d-cones-acquisition-of-human-extremity-imaging-using-a-1-5t-superconducting-magnet-and-an-unshielded-gradient-coil-set
#8
Ayana Setoi, Katsumi Kose
We developed ultrashort echo-time (UTE) imaging sequences with 3D Cones trajectories for a home-built compact MRI system using a 1.5T superconducting magnet and an unshielded gradient coil set. We achieved less than 7 min imaging time and obtained clear in vivo images of a human forearm with a TE of 0.4 ms. We concluded that UTE imaging using 3D Cones acquisition was successfully implemented in our 1.5T MRI system.
May 16, 2018: Magnetic Resonance in Medical Sciences: MRMS
https://www.readbyqxmd.com/read/29769165/radial-hemostasis-is-facilitated-with-a-potassium-ferrate-hemostatic-patch-the-statseal-with-tr-band-assessment-trial-stat
#9
Arnold H Seto, William Rollefson, Mitul P Patel, William M Suh, David M Tehrani, Jacqueline A Nguyen, Daniel G Amador, Omid Behnamfar, Vinisha Garg, Mauricio G Cohen
AIMS: Hemostasis is a limiting factor for discharge after uncomplicated transradial procedures. The potassium ferrate hemostatic patch (PFHP) may serve as an adjunct to the air-bladder TR band (TRB) and allow expedited deflation of the TRB. METHODS AND RESULTS: Prospective multicenter randomized controlled trial comparing radial hemostatic protocols. Deflation of the TRB was attempted at 40 minutes with PFHP and at 120 minutes without the PFHP. The primary outcome was time to full deflation of the TRB with hemostasis...
May 15, 2018: EuroIntervention
https://www.readbyqxmd.com/read/29768090/kinematic-differences-in-upper-limb-joints-between-flat-and-topspin-forehand-drives-in-competitive-male-tennis-players
#10
Cyril Genevois, Machar Reid, Thomas Creveaux, Isabelle Rogowski
The topspin tennis forehand drive has become a feature of modern game; yet, as compared to the serve, there has been little research analysing its kinematics. This is surprising given that there is considerably more variation in the execution of the topspin forehand. Our study is the first to examine the amplitude of upper limb joint rotations that produce topspin in the forehand drives of 14 male competitive tennis players using video-based motion analysis. Humerothoracic abduction (-)/adduction (+), extension (-) /flexion (+), and external (-)/internal (+) rotation, elbow extension (-) /flexion (+) and forearm supination (-)/pronation (+), wrist extension (-)/flexion (+) and ulnar (-)/radial (-) deviation were computed...
May 16, 2018: Sports Biomechanics
https://www.readbyqxmd.com/read/29766489/phenotypic-disparity-of-the-elbow-joint-in-domestic-dogs-and-wild-carnivores
#11
Borja Figueirido
In this article, I use geometric morphometrics in 2D from a sample of 366 elbow joints to quantify phenotypic disparity in domestic dog breeds, in wild canids, and across the order Carnivora. The elbow joint is a well-established morphological indicator of forearm motion and, by extension, of functional adaptations towards locomotor or predatory behavior in living carnivores. The study of the elbow joint in domestic dogs allows the exploration of potential convergences between (i) pursuit predators and fast-running dogs, and (ii) ambush predators and fighting breeds...
May 16, 2018: Evolution; International Journal of Organic Evolution
https://www.readbyqxmd.com/read/29766294/influence-of-dietary-nitrate-supplementation-on-local-sweating-and-cutaneous-vascular-responses-during-exercise-in-a-hot-environment
#12
Tatsuro Amano, Dai Okushima, Brynmor C Breese, Stephen J Bailey, Shunsaku Koga, Narihiko Kondo
PURPOSE: We investigated the influence of inorganic nitrate ([Formula: see text]) supplementation on local sweating and cutaneous vascular responses during exercise in hot conditions. METHOD: Eight healthy, young subjects were assigned in a randomized, double-blind, crossover design to receive [Formula: see text]-rich beetroot (BR) juice (140 mL/day, containing ~ 8 mmol of [Formula: see text]) and [Formula: see text]-depleted placebo (PL) juice (140 mL/day, containing ~ 0...
May 15, 2018: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/29765217/allergy-to-chlorpromazine-and-valproic-acid-following-carbamazepine-hypersensitivity-in-a-patient-with-an-hla-b-4601-allele
#13
Kumi Sakurada, Takeshi Kozaru, Kazuo Yamada, Masashi Nibuya, Kiyoshi Nagata, Eiji Suzuki
A 73-year-old man, exhibiting psychomotor excitement after traumatic brain injury, developed allergic cutaneous eruptions and hepatic inflammation that did not resolve after the cessation of carbamazepine (CBZ). Fusing maculopapular erythema was observed in the face, neck, presternal region, and bilaterally in the forearms and feet. A drug-induced lymphocyte stimulation test revealed hypersensitivity to chlorpromazine (CPZ) and valproic acid (VPA), as well as to CBZ. The allergic reaction with eosinophilia to CPZ and VPA was suspected to have emerged following CBZ hypersensitivity, since previous treatment with CPZ and VPA prior to the introduction of CBZ had not been associated with adverse reactions earlier in the course of treatment...
2018: Neuropsychiatric Disease and Treatment
https://www.readbyqxmd.com/read/29764332/visual-perception-strategies-of-foil-fencers-facing-right-versus-left-handed-opponents
#14
Mateusz Witkowski, Maciej Tomczak, Michał Bronikowski, Ewa Tomczak, Michał Marciniak, Zbigniew Borysiuk
This study sought to determine differences in fencers' visual perceptions during duels (preparatory actions) with right- versus left-handed opponents. Participants were 12 top-ranking right-handed female foil fencers (aged 16-30 years, M = 20.86, SD = 4.76) taking part in a training camp. Testing employed SensoMotoric Instruments Eye Tracking Glasses (SMI ETG 2.0) with eye-tracking analyses covering the visual attention time devoted to various areas of the opposing fencer's body (areas of interest), average fixation, number of glances, and number of fixations during preparatory actions in duels...
June 2018: Perceptual and Motor Skills
https://www.readbyqxmd.com/read/29763373/oral-glucose-challenge-impairs-skeletal-muscle-microvascular-blood-flow-in-healthy-people
#15
Ryan D Russell, Donghua Hu, Timothy Greenaway, James E Sharman, Stephen Rattigan, Stephen M Richards, Michelle A Keske
Skeletal muscle microvascular (capillary) blood flow increases in the post-prandial state or during insulin infusion due to dilation of pre-capillary arterioles to augment glucose disposal. This effect occurs independent of changes in large artery function. However, acute hyperglycemia impairs vascular function, causes insulin to vasoconstrict pre-capillary arterioles, and causes muscle insulin resistance in vivo. We hypothesize that acute hyperglycemia impairs post-prandial muscle microvascular perfusion, without disrupting normal large artery hemodynamics, in healthy humans...
May 15, 2018: American Journal of Physiology. Endocrinology and Metabolism
https://www.readbyqxmd.com/read/29762440/reconstruction-of-extensive-post-electric-burn-scalp-defects-with-exposed-bones-a-study-of-12-cases
#16
Periakaruppan Jeyakumar, Alia T Hussain, Ashik R Ahamed
The scalp is a unique part of the human body with respect to its shape and position. It is the part of the body that is usually exposed in its original form, with no covering by any means of clothing. In workplaces, especially in the electrical industry in the area of electrical substations and power transmission lines it is this part of the body that can easily come in contact with high tension electrical wires. Others who can be prone to suffer such injuries are pedestrians, people working on heights, ladies hanging clothes on terraces...
May 14, 2018: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/29761956/-research-on-adaptive-quasi-linear-viscoelastic-model-for-nonlinear-viscoelastic-properties-of-in-vivo-soft-tissues
#17
Heng Wang, Yuanjun Sang
The mechanical behavior modeling of human soft biological tissues is a key issue for a large number of medical applications, such as surgery simulation, surgery planning, diagnosis, etc. To develop a biomechanical model of human soft tissues under large deformation for surgery simulation, the adaptive quasi-linear viscoelastic (AQLV) model was proposed and applied in human forearm soft tissues by indentation tests. An incremental ramp-and-hold test was carried out to calibrate the model parameters. To verify the predictive ability of the AQLV model, the incremental ramp-and-hold test, a single large amplitude ramp-and-hold test and a sinusoidal cyclic test at large strain amplitude were adopted in this study...
October 1, 2017: Sheng Wu Yi Xue Gong Cheng Xue za Zhi, Journal of Biomedical Engineering, Shengwu Yixue Gongchengxue Zazhi
https://www.readbyqxmd.com/read/29761720/ronald-malt-or-chen-zhongwei-who-performed-the-first-surgical-replantation
#18
Ka-Wai Fan
This article discusses the contributions of the two pioneers of the surgical procedure of replantation-Ronald Malt in the US and Chen Zhongwei in China. Ronald Malt performed the reattachment surgery on a boy who had an accident in 1962, but he published his case report two years later in 1964. Chen Zhongwei performed a similar surgery on a worker who cut off his forearm in 1963, but he published his case report the same year. There is some debate about which one of these reputed surgeons should be given credit for being the first one to perform this breakthrough surgery, because although Malt was the first to perform the procedure, Zhongwei was the first to report it...
January 1, 2018: Journal of Medical Biography
https://www.readbyqxmd.com/read/29756750/validation-of-the-pmd100tm-and-its-noltm-index-to-detect-nociception-at-different-infusion-regimen-of-remifentanil-in-patients-under-general-anaesthesia
#19
Pierre-André Stöckle, Marco Julien, Rami Issa, Elizabeth Décary, Véronique Brulotte, Pierre Drolet, Margaret Henri, Madeleine Poirier, Jean-François Latulippe, Marc Dorais, Olivier Verdonck, Louis-Philippe Fortier, Philippe Richebé
BACKGROUND: The NOL index is based on multiparametric analysis of heart rate (HR), skin conductance, wave plethysmography, and their time derivative. Our objective was to evaluate the NOL to detect standardized nociceptive stimuli with various remifentanil dosages under general anaesthesia. METHODS: A prospective, observational study at a single center (NCT02602379) included 40 ASA I to III patients undergoing laparotomy under remifentanil-desflurane anaesthesia with epidural analgesia...
May 14, 2018: Minerva Anestesiologica
https://www.readbyqxmd.com/read/29754196/painful-stimulation-of-a-sensitized-site-in-the-forearm-inhibits-ipsilateral-trigeminal-nociceptive-blink-reflexes
#20
Peter D Drummond, Ashlea Bell, Lechi Vo
Exposure to moderate levels of ultraviolet B radiation (UVB) is painless but nevertheless induces an inflammatory response that sensitizes primary afferent nociceptors. Subsequently, heating the UVB-treated site can sensitize spinal nociceptors. We used a repeated-measures design to determine whether heating the UVB-treated site also triggers ipsilateral inhibitory controls. Specifically, a 2-cm diameter site on the forearm of 20 participants was exposed to UVB at twice the minimum erythema dose. 48 h later mechanical and thermal sensitivity had increased at the UVB-treated site, indicating primary hyperalgesia...
May 12, 2018: Experimental Brain Research. Experimentelle Hirnforschung. Expérimentation Cérébrale
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