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https://www.readbyqxmd.com/read/28087083/-isolated-microspherophakia-in-a-senegalese-family
#1
P A Ndoye Roth, S A Toure, H Kane, A S Sow, A M Wane, J M Ndiaye, A M Ka, J P Diagne, H M Diallo, M E Demedeiros Quenum, M Nguer, E A Ba, P A Ndiaye, M R Ndiaye
PURPOSE: To report the clinical investigation of isolated microspherophakia involving a Senegalese family in order to appreciate its functional impact. OBSERVATIONS: This is a rural family comprised of 7 members. The sibship included three girls and two boys. One of the girls, who lived in a distant zone, was unable to be examined. Of all the examined members of the family, only the father was unaffected by the illness. There was no consanguinity. The general medical examination was normal...
January 10, 2017: Journal Français D'ophtalmologie
https://www.readbyqxmd.com/read/28086940/ultrasound-guided-percutaneous-peripheral-nerve-stimulation-for-analgesia-following-total-knee-arthroplasty-a-prospective-feasibility-study
#2
Brian M Ilfeld, Christopher A Gilmore, Stuart A Grant, Michael P Bolognesi, Daniel J Del Gaizo, Amorn Wongsarnpigoon, Joseph W Boggs
BACKGROUND: Peripheral nerve stimulation has been used for decades to treat chronic pain but has not been used for postoperative analgesia due to multiple limitations, beginning with invasive electrode placement. With the development of small-diameter/gauge leads enabling percutaneous insertion, ultrasound guidance for accurate introduction, and stimulators small enough to be adhered to the skin, neurostimulation may now be provided in a similar manner to continuous peripheral nerve blocks...
January 13, 2017: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/28079754/ultrasound-guided-needle-technique-accuracy-prospective-comparison-of-passive-magnetic-tracking-versus-unassisted-echogenic-needle-localization
#3
Angela N Johnson, Jeffery S Peiffer, Nahi Halmann, Luke Delaney, Cindy A Owen, Jeff Hersh
BACKGROUND AND OBJECTIVES: Ultrasound-guided regional anesthesia facilitates an approach to sensitive targets such as nerve clusters without contact or inadvertent puncture. We compared accuracy of needle placement with a novel passive magnetic ultrasound needle guidance technology (NGT) versus conventional ultrasound (CU) with echogenic needles. METHODS: Sixteen anesthesiologists and 19 residents performed a series of 16 needle insertion tasks each, 8 using NGT (n = 280) and 8 using CU (n = 280), in high-fidelity porcine phantoms...
January 11, 2017: Regional Anesthesia and Pain Medicine
https://www.readbyqxmd.com/read/28079154/local-anesthesia-for-transrectal-ultrasound-guided-biopsy-of-the-prostate-a-meta-analysis
#4
Mingchao Li, Zhengyun Wang, Hao Li, Jun Yang, Ke Rao, Tao Wang, Shaogang Wang, Jihong Liu
A meta-analysis was performed to evaluate the efficacy of local anesthesia in alleviating pain during prostate biopsy. We searched relevant articles in PubMed and Embase. The included studies should be randomized controlled trials (RCT) using local anesthesia to alleviate pain during biopsy, which was recorded by a pain scale. Analgesic efficacy of different local anesthesia techniques were analyzed, including intrarectal local anesthesia (IRLA), periprostatic nerve block (PNB), pelvic plexus block (PPB) and intraprostatic local anesthesia (IPLA)...
January 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28073199/transrectal-ultrasound-trus-guided-prostate-biopsy-three-different-types-of-local-anesthesia
#5
Giuseppina Anastasi, Enrica Subba, Rosa Pappalardo, Luciano Macchione, Gioacchino Ricotta, Graziella Muscarà, Francesco Lembo, Carlo Magno
: Transrectal Ultrasound (TRUS) guided prostate biopsy is regarded as the gold standard for prostate cancer diagnosis. The majority of patients perceive TRUS-guided prostate biopsy as a physically and psychologically traumatic experience. We aimed to compare in this paper the efficacy of three different anesthesia techniques to control the pain during the procedure. MATERIALS AND METHODS: 150 patients who underwent transrectal ultrasound (TRUS) guided prostate biopsy were randomly divided into three groups...
December 30, 2016: Archivio Italiano di Urologia, Andrologia
https://www.readbyqxmd.com/read/28072749/ultrasound-guided-pulsed-radiofrequency-treatment-of-the-cervical-sympathetic-chain-for-complex-regional-pain-syndrome-a-retrospective-observational-study
#6
Eung Don Kim, Woo Joo Yoo, Yoo Na Kim, Hue Jung Park
The stellate ganglion is a common target to manage neuropathic pain in the upper extremities. However, the effect duration of a single stellate ganglion block is often temporary. To overcome the short-term effects of a single sympathetic block, pulsed radiofrequency (PRF) can be applied. The aim of the present study was to investigate the efficacy of PRF on the cervical sympathetic chain under ultrasound guidance for complex regional pain syndrome (CRPS).Twelve CRPS patients who underwent PRF on the cervical sympathetic chain were enrolled in this retrospective analysis...
January 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28063227/lipus-suppressed-lps-induced-il-1%C3%AE-through-the-inhibition-of-nf-%C3%AE%C2%BAb-nuclear-translocation-via-at1-plc%C3%AE-pathway-in-mc3t3-e1
#7
Mayu Nagao, Natsuko Tanabe, Soichiro Manaka, Masako Naito, Kumiko Nakai, Tadahiro Takayama, Takayuki Kawato, Go Torigoe, Jumpei Sekino, Naoya Tsukune, Masao Maeno, Naoto Suzuki, Shuichi Sato
Inflammatory cytokines, interleukin (IL)-1, IL-6, and TNF-a, are involved in inflammatory bone diseases such as rheumatoid osteoarthritis and periodontal disease. Particularly, periodontal disease, which destroys alveolar bone, is stimulated by lipopolysaccharide (LPS). Low-intensity pulsed ultrasound (LIPUS) is used for bone healing in orthopedics and dental treatments. However,the mechanism underlying effects of LIPUS on LPS-induced inflammatory cytokine are not well understood. We therefore aimed to investigate the role of LIPUS on LPS-induced IL-1a production...
January 7, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28050474/technique-efficiency-and-safety-of-different-nerve-blocks-for-analgesia-in-laser-ablation-and-sclerotherapy-for-lower-limb-superficial-venous-insufficiency-a-multicentre-experience
#8
Krishna Prasad Premnath Bellam, Binu Joy, Abhilash Sandhyala, Kiran Naiknaware, Brijesh Ray, Vijayakumar
INTRODUCTION: Laser ablation and sclerotherapy, as minimally invasive alternatives to surgery for varicose veins, have good efficacy, safety and cosmetic result. Some form of anaesthesia is generally used for pain control. AIM: To describe the technique and evaluate the efficacy and safety of femoral, saphenous and sciatic nerve blocks in isolation or in combination for analgesia during laser ablation and sclerotherapy for lower limb varicose veins. MATERIALS AND METHODS: In this prospective observational study, over a period of 33 months, in 856 limbs of 681 patients with varicose veins, ultrasound guided femoral, saphenous and sciatic nerve blocks for analgesia were performed in 769, 808 and 52 instances respectively; following which, endovenous laser ablation, sclerotherapy or combination of both were carried out using standard practice...
November 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28048904/su-g-bra-02-development-of-a-learning-based-block-matching-algorithm-for-ultrasound-tracking-in-radiotherapy
#9
A Shepard, B Bednarz
PURPOSE: To develop an ultrasound learning-based tracking algorithm with the potential to provide real-time motion traces of anatomy-based fiducials that may aid in the effective delivery of external beam radiation. METHODS: The algorithm was developed in Matlab R2015a and consists of two main stages: reference frame selection, and localized block matching. Immediately following frame acquisition, a normalized cross-correlation (NCC) similarity metric is used to determine a reference frame most similar to the current frame from a series of training set images that were acquired during a pretreatment scan...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28048471/su-g-jep3-03-effect-of-robot-pose-on-beam-blocking-for-ultrasound-guided-sbrt-of-the-prostate
#10
S Gerlach, I Kuhlemann, F Ernst, C Fuerweger, A Schlaefer
PURPOSE: Ultrasound presents a fast, volumetric image modality for real-time tracking of abdominal organ motion. How-ever, ultrasound transducer placement during radiation therapy is challenging. Recently, approaches using robotic arms for intra-treatment ultrasound imaging have been proposed. Good and reliable imaging requires placing the transducer close to the PTV. We studied the effect of a seven degrees of freedom robot on the fea-sible beam directions. METHODS: For five CyberKnife prostate treatment plans we established viewports for the transducer, i...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28048139/su-f-j-227-accuracy-of-passive-magnetic-ultrasound-needle-guidance-in-high-fidelity-conventional-and-novel-simulated-block-approach-phantoms
#11
A Johnson
PURPOSE: The objective of this research was to demonstrate accuracy of a real-time passive ultrasound magnetic needle guidance technology (NGT) and target localization algorithm using conventional anechogenic contact phantoms and a novel fluid-filled hyperechogenic phantom simulating nerve block technique. METHODS: Accuracy (mm to phantom target) was assessed by observing 35 medical practitioners (16 anesthesiologists and 19 residents) performing 560 needle procedures in high-fidelity ex vivo porcine tissue phantoms...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28047453/su-g-jep1-07-development-of-a-programmable-motion-testbed-for-the-validation-of-ultrasound-tracking-algorithms
#12
A Shepard, C Matrosic, J Zagzebski, B Bednarz
PURPOSE: To develop an advanced testbed that combines a 3D motion stage and ultrasound phantom to optimize and validate 2D and 3D tracking algorithms for real-time motion management during radiation therapy. METHODS: A Siemens S2000 Ultrasound scanner utilizing a 9L4 transducer was coupled with the Washington University 4D Phantom to simulate patient motion. The transducer was securely fastened to the 3D stage and positioned to image three cylinders of varying contrast in a Gammex 404GS LE phantom...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28046982/su-c-207b-07-deep-convolutional-neural-network-image-matching-for-ultrasound-guidance-in-radiotherapy
#13
N Zhu, M Najafi, S Hancock, D Hristov
PURPOSE: Robust matching of ultrasound images is a challenging problem as images of the same anatomy often present non-trivial differences. This poses an obstacle for ultrasound guidance in radiotherapy. Thus our objective is to overcome this obstacle by designing and evaluating an image blocks matching framework based on a two channel deep convolutional neural network. METHODS: We extend to 3D an algorithmic structure previously introduced for 2D image feature learning [1]...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28042634/anesthesia-methods-used-by-anesthetic-specialists-for-circumcision-cases-national-survey-study-for-turkey
#14
Cafer Altaş, Gamze Küçükosman, Bülent S Yurtlu, Rahşan D Okyay, Bengü G Aydın, Özcan Pişkin, Murat Çimencan, Hilal Ayoğlu, Volkan Hancı, Işıl Özkoçak-Turan
To examine the anesthesiologist's choice for anesthesia techniques and drugs in circumcision and determine the preoperative examination, intraoperative monitoring techniques, postoperative analgesia methods, and common complications among anesthesiologists working in Turkey. Methods: This cross-sectional study was conducted at Bulent Ecevit University Hospital, Zonguldak, Turkey, between May and July 2012. Survey data were obtained via survey forms through electronic data over the web. The questionnaire consists of 20 questions...
January 2017: Saudi Medical Journal
https://www.readbyqxmd.com/read/28039653/effect-of-ultrasound-guided-phrenic-nerve-block-on-shoulder-pain-after-laparoscopic-cholecystectomy-a-prospective-randomized-controlled-trial
#15
Myung Sub Yi, Won Joong Kim, Min Kyoung Kim, Hyun Kang, Yong-Hee Park, Yong Hun Jung, Seung Eun Lee, Hwa Yong Shin
BACKGROUND: Post-laparoscopic shoulder pain (PLSP) frequently follows a laparoscopic cholecystectomy. A proposed mechanism for PLSP is the irritation or injury of the phrenic nerve by the CO2 pneumoperitoneum during laparoscopic surgery. Here, we investigated whether a phrenic nerve block (PNB), performed under ultrasound guidance, could reduce the incidence and severity of PLSP after laparoscopic cholecystectomy. METHOD: Sixty patients were randomized into two groups, with one group receiving PNB with 4 ml (30 mg) of 0...
December 30, 2016: Surgical Endoscopy
https://www.readbyqxmd.com/read/28034541/comparison-of-two-inexpensive-rapid-prototyping-methods-for-manufacturing-filament-target-ultrasound-phantoms
#16
Krisztián Füzesi, Miklós Gyöngy
Current use of 3-D printers to manufacture ultrasound phantoms is limited to relatively expensive photopolymer jetting printers. The present work investigates the feasibility of using two common and inexpensive 3-D printer technologies, fused deposition modeling (FDM) and digital light processing (DLP), to print custom filament target phantoms. Acoustic characteristics obtained from printed solid blocks indicated that the printing materials-acrylonitrile butadiene styrene and polylactic acid for FDM and a photopolymer for DLP printing-were appropriate for use as scatterers...
December 26, 2016: Ultrasound in Medicine & Biology
https://www.readbyqxmd.com/read/28033112/three-dimensional-ultrasound-strain-imaging-of-skeletal-muscles
#17
K Gijsbertse, A M J Sprengers, M M Nillesen, H H G Hansen, R G P Lopata, N Verdonschot, C L de Korte
In this study, a multi-dimensional strain estimation method is presented to assess local relative deformation in three orthogonal directions in 3D space of skeletal muscles during voluntary contractions. A rigid translation and compressive deformation of a block phantom, that mimics muscle contraction, is used as experimental validation of the 3D technique and to compare its performance with respect to a 2D based technique. Axial, lateral and (in case of 3D) elevational displacements are estimated using a cross-correlation based displacement estimation algorithm...
December 29, 2016: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/28027453/pethidine-efficacy-in-achieving-the-ultrasound-guided-oblique-subcostal-transversus-abdominis-plane-block-in-laparoscopic-cholecystectomy-a-prospective-study
#18
Caius Mihai Breazu, Lidia Ciobanu, Adrian Bartos, Raluca Bodea, Petru Adrian Mircea, Daniela Ionescu
Pethidine is a synthetic opioid with local anesthetic properties. Our goal was to evaluate the analgesic efficacy of pethidine for achieving the ultrasound-guided oblique subcostal transversus abdominis plane (OSTAP) block in laparoscopic cholecystectomy. This prospective, double-blind study included 79 patients of physical status I and II according to American Society of Anesthesiologists, scheduled for elective laparoscopic cholecystectomy. The patients were randomly allocated into three groups, depending on the drug used to achieve preoperative bilateral OSTAP block: 1) OSTAP-Placebo (treated with normal saline); 2) OSTAP-Bupivacaine (treated with 0...
December 27, 2016: Bosnian Journal of Basic Medical Sciences
https://www.readbyqxmd.com/read/28027224/ultrasound-guided-bilateral-thoracic-paravertebral-blocks-as-an-adjunct-to-general-anesthesia-in-patients-undergoing-reduction-mammaplasty-a-historical-cohort-study
#19
Emine A Salviz, Nukhet Sivrikoz, Anil Ozonur, Mukadder Orhan-Sungur, Meltem Savran-Karadeniz, Demet Altun, Emre Hocaoglu, Burcu Celet-Ozden, Kamil M Tugrul
BACKGROUND: This study investigates whether ultrasound-guided thoracic paravertebral blocks would improve postoperative analgesia in patients undergoing bilateral reduction mammaplasty. METHODS: After obtaining ethics committee approval, data of 70 patients who underwent bilateral reduction mammaplasty were reviewed. Sixty-four patients' data were evaluable; 30 were in the general anesthesia group and 34 were in the thoracic paravertebral block group. Data such as time to first pain, intraoperative fentanyl requirement, postoperative numeric rating scale scores, number of patients who required tramadol in the postoperative care unit, and rescue analgesic consumption through the first 2 postoperative days were analyzed...
January 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28025374/effect-of-local-anesthetic-concentration-0-2-vs-0-1-ropivacaine-on-pulmonary-function-and-analgesia-after-ultrasound-guided-interscalene-brachial-plexus-block-a-randomized-controlled-study
#20
Andrew K Wong, Lauren Georgiades Keeney, Liting Chen, Rebekah Williams, Jiabin Liu, Nabil M Elkassabany
OBJECTIVE: This study aims to assess diaphragmatic excursion and measure pulmonary functions as measures of the degree to which the phrenic nerve is blocked after ISB with two different concentrations of ropivacaine: 0.2% and 0.1%. DESIGN: Randomized, double-blinded study. SETTING AND PATIENTS: Ambulatory surgical facility. SUBJECTS: Fifty patients undergoing shoulder arthroscopy for rotator cuff repair. METHODS: Patients were randomized to receive ultrasound-guided ISB with 20 mL of either 0...
December 2016: Pain Medicine: the Official Journal of the American Academy of Pain Medicine
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