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https://www.readbyqxmd.com/read/28221151/-techniques-for-percutaneous-access-during-percutaneous-nephrolithotomy
#1
Daniel Pérez-Fentes
The creation of the access is one of the main steps in percutaneous nephrolithotomy, the most complicated for many urologists and the one that limited most the universalization of the technique. From a purely technical point of view, it includes puncture of the excretory tract and dilatation of the percutaneous tract to end with the introduction of an Amplatz type working sheath. The objective of the puncture is to try to access the excretory system through the renal papilla, minimizing the risk of bleeding...
January 2017: Archivos Españoles de Urología
https://www.readbyqxmd.com/read/28216073/autoimmune-neuropathies-associated-to-rheumatic-diseases
#2
REVIEW
Alberto R M Martinez, Ingrid Faber, Anamarli Nucci, Simone Appenzeller, Marcondes C França
Systemic manifestations are frequent in autoimmune rheumatic diseases and include peripheral nervous system damage. Neuron cell body, axons and myelin sheath may all be affected in this context. This involvement results in severe and sometimes disabling symptoms. Sensory, motor and autonomic features may be present in different patterns that emerge as peculiar clinical pictures. Prompt recognition of these neuropathies is pivotal to guide treatment and reduce the risks of long term disability. In this review, we aim to describe the main immune-mediated neuropathies associated to rheumatic diseases: sensory neuronopathies, multiple mononeuropathies and chronic inflammatory demyelinating polyradiculoneuropathy, with an emphasis on clinical features and therapeutic options...
February 12, 2017: Autoimmunity Reviews
https://www.readbyqxmd.com/read/28215930/ultrasound-guided-resuscitative-endovascular-balloon-occlusion-of-the-aorta-in-the-resuscitation-area
#3
Takayuki Ogura, Alan Kawarai Lefor, Mitsunobu Nakamura, Kenji Fujizuka, Kousuke Shiroto, Minoru Nakano
BACKGROUND: In trauma resuscitation with resuscitative endovascular balloon occlusion of the aorta (REBOA), urgent and accurate placement of the catheter in the resuscitation area without fluoroscopy can shorten the time from admission to REBOA, allowing rapid, temporary control of bleeding. DISCUSSION: The experience-based protocol in our center for ultrasound-guided REBOA in the resuscitation area without fluoroscopy is as follows: the femoral artery is punctured and a guidewire inserted; sonography is used to verify that the guidewire is in the abdominal aorta; the position of the balloon is confirmed with ultrasound after estimating the distance to the clavicle, and the pressure in the radial artery and sheath is used to monitor correct positioning; connect the pressure transducer to the catheter sheath for continuous monitoring of the blood pressure in the sheath, and inflate the balloon until the blood pressure tracing at the sheath has disappeared; check the pulse in the left radial artery, and withdraw the catheter slightly if the pulse in the radial artery is not palpable or is decreased (if this pulse is not palpable or decreased, the balloon is in the aortic arch)...
February 17, 2017: Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28209340/ultrasound-guided-injection-for-de-quervain-s-disease-accuracy-and-its-influenceable-anatomical-variances-in-first-extensor-compartment-of-fresh-cadaver-wrists
#4
Jong Woo Kang, Jong Woong Park, Soon Hyuck Lee, Jong Hoon Park, Seung Bum Han, Si Young Park, Woong Kyo Jeong
BACKGROUND: This study was designed to evaluate the accuracy of ultrasound-guided injection targeting EPB tendon sheath and influenceable anatomical variances to the accuracy in the first extensor compartment of fresh cadaver wrists. METHODS: Thirty wrists of 15 cadavers were used. The wrists were divided into right-sided wrists (control group) and left-sided wrists (group A) to compare the accuracy of the manual injection technique (control group) and ultrasound-guided injection technique (group A) targeting EPB tendon sheath...
February 10, 2017: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://www.readbyqxmd.com/read/28205183/large-primary-pleural-synovial-sarcoma-with-severe-dyspnea-a-case-report
#5
Minoru Yamaki, Shuji Yonehara, Toshio Noriyuki
BACKGROUND: Synovial sarcoma is a malignant neoplasm of soft tissues. It occurs mainly in the extremities and is closely related to tendons, tendon sheaths, and bursal structures. Primary synovial sarcoma of the pleura and lungs is extremely rare. CASE PRESENTATION: We present the case of a 62-year-old man with a large synovial sarcoma of the left pleura. He presented with general fatigue and severe dyspnea. Chest computed tomography (CT) revealed a 20-cm tumor in the left thoracic cavity...
December 2017: Surgical Case Reports
https://www.readbyqxmd.com/read/28202256/transseptal-puncture-review-of-anatomy-techniques-complications-and-challenges
#6
REVIEW
Barry O'Brien, Haroon Zafar, Simon De Freitas, Faisal Sharif
In recent years, the transseptal puncture approach has enabled passage of increasingly large and complex devices into the left atrium. Traditional tools remain effective in creating and dilating the initial puncture, with an acceptable safety profile. Even for skilled operators, the procedure is technically demanding and requires sound understanding of atrial anatomy. Intracardiac echocardiography is useful in cases of previous septal repair, poorly defined fossa ovalis anatomy or when considering patent foramen ovale portal crossing...
April 15, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28198572/comparison-of-the-analgesic-efficacy-of-ultrasound-guided-rectus-sheath-block-and-local-anesthetic-infiltration-for-laparoscopic-percutaneous-extraperitoneal-closure-in-children
#7
Yuka Uchinami, Fumika Sakuraya, Nobuhiro Tanaka, Koji Hoshino, Eri Mikami, Taro Ishikawa, Hitomi Fujii, Takehiko Ishikawa, Yuji Morimoto
BACKGROUND: Ultrasound-guided rectus sheath block and local anesthetic infiltration are the standard options to improve postoperative pain for children undergoing surgery with a midline incision. However, there is no study comparing the effect of ultrasound-guided rectus sheath block with local anesthetic infiltration for children undergoing laparoscopic surgery. AIMS: The aim of this trial was to compare the onset of ultrasound-guided rectus sheath block with that of local anesthetic infiltration for laparoscopic percutaneous extraperitoneal closure in children...
February 15, 2017: Paediatric Anaesthesia
https://www.readbyqxmd.com/read/28182117/fibrin-sheaths-in-central-venous-port-catheters-treatment-with-low-dose-single-injection-of-urokinase-on-an-outpatient-basis
#8
De-Hua Chang, Kamal Mammadov, Tilman Hickethier, Jan Borggrefe, Martin Hellmich, David Maintz, Christoph Kabbasch
PURPOSE: Evaluation of the efficacy of single-shot, low-dose urokinase administration for the treatment of port catheter-associated fibrin sheaths. METHODS: Forty-six patients were retrospectively evaluated for 54 episodes of port catheter dysfunction. The presence of a fibrin sheath was detected by angiographic contrast examinations. On an outpatient basis, patients subsequently received thrombolysis consisting of a single injection of urokinase (15.000 IU in 1...
2017: Therapeutics and Clinical Risk Management
https://www.readbyqxmd.com/read/28169834/development-of-biomimetic-micro-patterned-device-incorporated-with-neurotrophic-gradient-and-supportive-schwann-cells-for-the-applications-in-neural-tissue-engineering
#9
Chia-Wei Yeh, Li-Wen Wang, Hsi-Chin Wu, Yi-Kong Hsieh, Jane Wang, Ming-Hong Chen, Tzu-Wei Wang
In these years, the artificial nerve guidance conduit has been developed as an alternative way to repair peripheral nerve injury. Unlike autologous nerve graft, the artificial nerve guidance conduit without proper stimulating factors and guidance cues still cannot obtain satisfactory prognosis for clinical patients. In this study, a biodegradable polymer-based implantable device has been developed and characterized. By incorporating three stimulating factors: 1) micro-patterned surface that can directionally guide the axon as physical cue; 2) neurotrophic gradient membrane that can continually attract axon outgrowth from the proximal to distal stump as chemical cue; 3) Schwann cells that can support the growth of neurite and form myelin sheath around axon as biological cue, we expect that this construct can be used as a promising nerve guidance conduit for peripheral nerve regeneration...
February 7, 2017: Biofabrication
https://www.readbyqxmd.com/read/28168447/how-to-achieve-ultrasound-guided-femoral-venous-access-the-new-standard-of-care-in-the-electrophysiology-laboratory
#10
REVIEW
Benedict M Wiles, Nicholas Child, Paul R Roberts
PURPOSE: Bedside vascular ultrasound machines are increasingly available. They are used to facilitate safer vascular access across a number of different specialties. In the electrophysiology laboratory however, where patients are frequently anticoagulated and require the insertion of multiple venous sheaths, anatomical landmark techniques predominate. Despite the high number of vascular complications associated with electrophysiological procedures and the increasing evidence to support its use in electrophysiology, ultrasound remains underutilised...
February 7, 2017: Journal of Interventional Cardiac Electrophysiology: An International Journal of Arrhythmias and Pacing
https://www.readbyqxmd.com/read/28156208/image-guided-intrathecal-baclofen-pump-catheter-implantation-a-technical-note-and-case-series
#11
Shenandoah Robinson, Faith C Robertson, Hormuzdiyar H Dasenbrock, Cormac P O'Brien, Charles Berde, Horacio Padua
OBJECTIVE Medically refractory spasticity and dystonia are often alleviated with intrathecal baclofen (ITB) administration through an indwelling catheter inserted in the lumbar spine. In patients with cerebral palsy, however, there is a high incidence of concomitant neuromuscular scoliosis. ITB placement may be technically challenging in those who have severe spinal deformity or who have undergone prior instrumented thoracolumbar fusion. Although prior reports have described drilling through the lumbar fusion mass with a high-speed bur, as well as IT catheter implantation at the foramen magnum or cervical spine, these approaches have notable limitations...
February 3, 2017: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/28145920/successful-treatment-of-gluteal-pain-from-obturator-internus-tendinitis-and-bursitis-with-ultrasound-guided-injection
#12
Boqing Chen, Leia Rispoli, Todd Stitik, Michelle Leong
This case report describes what the authors believe is the first case of a patient with obturator internus tendinitis and bursitis successfully treated with a corticosteroid injection using a trans-tendinous lateral to medial approach. The patient presented with right gluteal pain not relieved by physical therapy or right hip and ischial bursa corticosteroid injections. Pelvic and lumbar spine MRIs and EMG/NCS findings were unremarkable. Physical examination demonstrated tenderness to palpation at the right middle lower gluteal region...
January 31, 2017: American Journal of Physical Medicine & Rehabilitation
https://www.readbyqxmd.com/read/28143844/cellular-and-molecular-mechanisms-of-tooth-root-development
#13
REVIEW
Jingyuan Li, Carolina Parada, Yang Chai
The tooth root is an integral, functionally important part of our dentition. The formation of a functional root depends on epithelial-mesenchymal interactions and integration of the root with the jaw bone, blood supply and nerve innervations. The root development process therefore offers an attractive model for investigating organogenesis. Understanding how roots develop and how they can be bioengineered is also of great interest in the field of regenerative medicine. Here, we discuss recent advances in understanding the cellular and molecular mechanisms underlying tooth root formation...
February 1, 2017: Development
https://www.readbyqxmd.com/read/28142366/benign-peripheral-nerve-sheath-tumor-in-a-distance-runner
#14
Laura E Stanley, David J Berkoff
A 31-year-old female runner presented to physical therapy via direct access with an 8-month history of atraumatic left lateral calf pain. Following 1 month of physical therapy, the patient was referred to an orthopaedic sports medicine physician. Ultrasound imaging revealed a 2-cm hypoechoic mass with well-defined margins in the left proximal lateral soleus, while Doppler ultrasound demonstrated increased color flow surrounding the mass. Magnetic resonance imaging findings were consistent with a nerve sheath tumor, and ultrasound-guided tissue biopsy determined the mass to be a benign peripheral nerve sheath tumor...
February 2017: Journal of Orthopaedic and Sports Physical Therapy
https://www.readbyqxmd.com/read/28128875/an-ultrasound-guided-tendon-sparing-lateral-approach-to-injection-of-the-navicular-bursa
#15
K Nottrott, C De Guio, A Khairoun, M Schramme
BACKGROUND: Navicular disease in the horse often requires injection of the navicular bursa. We have developed an ultrasound-guided, lateral needle approach to navicular bursocentesis, which avoids penetration of the deep digital flexor tendon (DDFT) and the need for radiographic control. OBJECTIVES: To describe and evaluate the feasibility and efficacy of an ultrasound-guided, lateral bursocentesis technique. STUDY DESIGN: Cadaveric and in vivo experiments...
January 27, 2017: Equine Veterinary Journal
https://www.readbyqxmd.com/read/28122321/soft-tissue-mesenchymal-tumour-a-case-report-with-review-of-literature
#16
Debkumar Chowdhury, Michal Chudy, Sanjeet Bhattacharya
INTRODUCTION: Soft tissue mesenchymal tumours are a common occurrence in surgical practice with particular predilection for the extremities. Approximately 1 in 100 soft tissue tumours are found to be sarcomas. The main concern is to exclude any evidence of malignancy. Both imaging studies and a detailed histological analysis is required to ensure that a diagnosis of a high-grade tumour is not missed. PRESENTATION OF CASE: Here we present a 38-year-old previously fit and well gentleman with a slowly growing lump in the upper aspect of his abdomen over the previous year being completely asymptomatic from it...
January 12, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28121919/roles-of-real-time-three-dimensional-transesophageal-echocardiography-in-peri-operation-of-transcatheter-left-atrial-appendage-closure
#17
Qing Zhou, Hongning Song, Lan Zhang, Qing Deng, Jinling Chen, Bo Hu, Yijia Wang, Ruiqiang Guo
Left atrial appendage (LAA) closure is a new treatment option for the prevention of stroke in patients with nonvalvular atrial fibrillation (AF). Conventional 2-dimensional transesophageal echocardiography (2D TEE) has some limitations in the imaging assessment of LAA closure. Real-time 3-dimensional transesophageal echocardiography (RT-3D TEE) allows for detailed morphologic assessment of the LAA. In this study, we aim to determine the clinical values of RT-3D TEE in the periprocedure of LAA closure.Thirty-eight persistent or paroxysmal AF patients with indications for LAA closure were enrolled in this study...
January 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28120017/-sciatic-nerve-block-out-of-plane-distal-to-the-bifurcation-effective-and-safe
#18
T Geiser, J Apel, O Vicent, J Büttner
BACKGROUND: Ultrasound guided distal sciatic nerve block (DSB) at bifurcation level shows fast onset and provides excellent success rates. However, its safe performance might be difficult for the unexperienced physician. Just slightly distal to the bifurcation, the tibial nerve (TN) and common fibular nerve (CFN) can be shown clearly separated from each other. Therefore, we investigated if a block done here would provide similar quality results compared to the DSB proximally to the division, with a potentially lower risk of nerve damage...
January 24, 2017: Der Anaesthesist
https://www.readbyqxmd.com/read/28118796/mechanical-recanalization-for-acute-embolic-occlusion-at-the-origin-of-the-superior-mesenteric-artery
#19
Yoichi Miura, Tomohiro Araki, Mio Terashima, Junya Tsuboi, Yasuhiro Saito, Kenji Kanamaru, Hidenori Suzuki
PURPOSE: We report a combined technique consisting of thrombectomy and thromboaspiration for the treatment of acute embolic occlusion of the superior mesenteric artery (SMA) at the origin. CASE: A 90-year-old female with chronic atrial fibrillation had a sudden onset of abdominal pain and hematochezia due to acute embolic occlusion at the origin of the SMA. Computed tomographic findings showed reversible bowel wall ischemia. We performed mechanical thrombectomy using the Solitaire FR revascularization device, a self-expanding and fully retrievable stent-based thrombectomy system for acute intracranial large artery occlusion, combined with manual aspiration through a 6F guiding sheath placed at the SMA origin via a right brachial approach...
January 1, 2017: Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/28110861/safety-of-early-ambulation-in-patients-undergoing-ultrasound-guided-femoral-low-angle-arterial-access-technique-flat
#20
P A Shukla, M K Kolber, A Kumar, R I Patel
PURPOSE: To evaluate the safety of early ambulation in patients undergoing transfemoral arterial interventions via ultrasound-guided femoral low angle arterial access technique (FLAT). MATERIALS AND METHODS: A total of 58 patients undergoing 72 transfemoral arterial procedures that underwent an attempt at FLAT for femoral artery cannulation at our institution from November 2014 to July 2015 were retrospectively identified. Technical success was defined as obtaining less than a 35-degree angle of entry through the anterior wall of the common femoral artery...
January 16, 2017: Diagnostic and Interventional Imaging
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