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https://www.readbyqxmd.com/read/28414695/imaging-criteria-to-predict-surgical-difficulties-during-stapes-surgery
#1
Claire Parra, Stéphanie Trunet, Benjamin Granger, Yann Nguyen, Georges Lamas, Daniele Bernardeschi, Rémi Hervochon, Frédéric Tankere
BACKGROUND AND PURPOSE: Stapes surgery for otosclerosis can be challenging if access to the oval window niche is restricted. The aim of this study was to determine the accuracy of the computed tomographic (CT) scan in the evaluation of anatomical distances, and to analyze its reliability in predicting surgical technical difficulties. MATERIAL AND METHODS: A total of 96 patients (101 ears) were enrolled in a prospective study between 2012 and May 2015. During surgery, we evaluated the distance D1 between the stapes and the facial nerve, distance D2 between the promontory and the facial nerve after ablation of the superstructure, and the intraoperative discomfort of the surgeon...
April 13, 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/28413736/targeted-intraspinal-radiofrequency-ablation-for-lumbar-spinal-stenosis
#2
Robert E Jacobson, Michelle Granville, Jesse Hatgis DO
INTRODUCTION: By using a combination of magnetic resonance imaging (MRI) and computed tomography (CT) of the lumbar spine, it is possible to distinguish between spinal stenosis caused by bone compression and specific soft tissue epidural intraspinal lesions that cause localized spinal canal stenosis and neural compression. Examples include facet cysts and yellow ligament hypertrophy. Many of these patients are elderly with medical comorbidities that make open surgery problematic. MATERIALS & METHODS: This is a study of patients with predominantly soft tissue stenosis being treated with targeted intraspinal radiofrequency (RF) heat ablation...
March 10, 2017: Curēus
https://www.readbyqxmd.com/read/28408649/external-arrhythmia-ablation-using-photon-beams-ablation-of-the-atrioventricular-junction-in-an-intact-animal-model
#3
H Immo Lehmann, Amanda J Deisher, Mitsuru Takami, Jon J Kruse, Limin Song, Sarah E Anderson, Jack T Cusma, Kay D Parker, Susan B Johnson, Samuel J Asirvatham, Robert C Miller, Michael G Herman, Douglas L Packer
BACKGROUND: This study sought to investigate external photon beam radiation for catheter-free ablation of the atrioventricular junction in intact pigs. METHODS AND RESULTS: Ten pigs were randomized to either sham irradiation or irradiation of the atrioventricular junction (55, 50, 40, and 25 Gy). Animals underwent baseline electrophysiological evaluation, cardiac gated multi-row computed tomographic imaging for beam delivery planning, and intensity-modulated radiation therapy...
April 2017: Circulation. Arrhythmia and Electrophysiology
https://www.readbyqxmd.com/read/28407263/successful-ablation-of-plunging-ranula-by-ultrasound-guided-percutaneous-ethanol-injection
#4
Michelle-Linh T Nguyen, Lisa A Orloff
Evidence supporting any one treatment for plunging ranula is limited. Standard treatment-complete excision of the sublingual gland and ranula-is invasive and morbid given the close operative proximity to the submandibular duct and lingual nerve. OK-432 (Picibanil; Chugai Pharmaceutical Co., Tokyo, Japan) sclerotherapy has been studied as a less invasive treatment but is inaccessible in the United States. This report illustrates the successful management of a plunging ranula using ultrasound-guided percutaneous ethanol injection...
April 13, 2017: Laryngoscope
https://www.readbyqxmd.com/read/28406699/early-morphologic-alterations-in-renal-artery-wall-and-renal-nerves-in-response-to-catheter-based-renal-denervation-procedure-in-sheep-difference-between-single-point-and-multiple-point-ablation-catheters
#5
M Táborský, D Richter, Z Tonar, T Kubíková, A Herman, J Peregrin, L Červenková, Z Husková, L Kopkan
Renal sympathetic hyperactivity is critically involved in hypertension pathophysiology; renal denervation (RDN) presents a novel strategy for treatment of resistant hypertension cases. This study assessed effects of two RDN systems to detect acute intravascular, vascular and peri-vascular changes in the renal artery, and renal nerve alterations, in the sheep. The procedures using a single-point or multi-point ablation catheters, Symplicity Flex(TM), Medtronic versus EnligHTN(TM), St. Jude Medical were compared; the intact contralateral kidneys served as controls...
April 12, 2017: Physiological Research
https://www.readbyqxmd.com/read/28403687/mechanochemical-endovenous-ablation-of-saphenous-veins-using-the-clarivein-a-systematic-review
#6
Marianne E Witte, Clark J Zeebregts, Gert Jan de Borst, Michel M P J Reijnen, Doeke Boersma
Objective To systematically review all available English literature on mechanochemical endovenous ablation and to report on the anatomical, technical, and clinical success. Methods A systematic literature search was performed in PubMed, EMBASE, and the Cochrane Library on mechanochemical endovenous ablation for the treatment of insufficient great and/or small saphenous vein. Methodological quality of the included studies was evaluated using the MINORS score. The primary outcome measure was anatomical success, defined as closure of the treated vein on follow-up duplex ultrasound imaging...
January 1, 2017: Phlebology
https://www.readbyqxmd.com/read/28402529/efficacy-and-safety-of-the-second-generation-cryoballoon-ablation-for-the-treatment-of-paroxysmal-atrial-fibrillation-in-patients-over-75-years-a-comparison-with-a-younger-cohort
#7
Juan-Pablo Abugattas, Saverio Iacopino, Darragh Moran, Valentina De Regibus, Ken Takarada, Giacomo Mugnai, Erwin Ströker, Hugo Enrique Coutiño-Moreno, Rajin Choudhury, Cesare Storti, Yves De Greef, Gaetano Paparella, Pedro Brugada, Carlo de Asmundis, Gian-Battista Chierchia
Aims: In this double centre, retrospective study, we aimed to analyse the 1-year efficacy and safety of cryoballoon ablation (CB-A) in patients older than 75 years compared with those younger than 75-years old. Methods and results: Fifty-three consecutive patients aged 75 years or older with drug-resistant paroxysmal AF (PAF) who underwent pulmonary vein isolation (PVI) by the means of second generation CB-A, were compared with 106 patients aged <75 years. The mean age in the study group (>75 years) was 78...
April 10, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28391383/percutaneous-radiofrequency-ablation-for-spinal-osteoid-osteoma-and-osteoblastoma
#8
Ben Wang, Song Bo Han, Liang Jiang, Hui Shu Yuan, Chen Liu, Bin Zhu, Zhong Jun Liu, Xiao Guang Liu
PURPOSES: We sought to verify the efficacy and safety of RFA in spinal OO and osteoblastomas (OB) (Enneking Stage 2, S2). METHODS: We retrospectively reviewed patients treated in our hospital. Surgical resection was indicated for Enneking Stage 3 OB. RFA indications for spinal OO and OB (S2) were no neurological deficits, complete bone cortex around the lesion on computed tomography (CT), and cerebrospinal fluid between a lesion and the spinal cord/nerve root on magnetic resonance imaging...
April 8, 2017: European Spine Journal
https://www.readbyqxmd.com/read/28389694/utility-of-the-ginza-forceps-for-superficial-phlebectomy-during-endovenous-laser-ablation-of-the-great-saphenous-vein
#9
Takeshi Baba, Takao Ohki, Yuji Kanaoka, Koji Maeda, Kenjirou Kaneko, Masayuki Hara, Kota Shukuzawa, Soichiro Fukushima
PURPOSE: To evaluate the efficiency of using the Ginza forceps (DVx, Tokyo, Japan), which have a long shaft and strong grip, for superficial phlebectomy with the stab avulsion technique, during simultaneous endovenous laser ablation (EVLA) of the great saphenous vein (GSV). METHODS: The subjects were patients treated with EVLA performed by a single operator at one institution. All patients had a GSV diameter of 4-10 mm and an EVLA length of the GSV of >20 cm...
April 7, 2017: Surgery Today
https://www.readbyqxmd.com/read/28385075/propensity-score-matched-comparison-of-partial-to-whole-gland-cryotherapy-for-intermediate-risk-prostate-cancer-an-analysis-of-the-cold-registry-data
#10
Kae Jack Tay, Thomas J Polascik, Ahmed El-Shafei, Efrat Tsivian, J Stephen Jones
OBJECTIVE: To compare the oncological and functional outcomes of partial versus whole-gland cryotherapy for men with intermediate-risk prostate cancer. SUBJECTS/PATIENTS: Men with intermediate-risk prostate cancer treated with primary prostate cryotherapy from 1993-2013 were selected from the Cryo On-Line Data Registry for a 1:1 matched comparison between those undergoing whole-gland and partial prostate cryotherapy (targeted-ablation, unilateral/bilateral nerve-sparing ablations)...
April 6, 2017: Journal of Endourology
https://www.readbyqxmd.com/read/28382129/labyrinthectomy-and-vestibular-neurectomy-for-intractable-vertiginous-symptoms
#11
Alfredo Vega Alarcón, Lourdes Olivia Vales Hidalgo, Rodrigo Jácome Arévalo, Marite Palma Diaz
Introduction Labyrinthectomy and vestibular neurectomy are considered the surgical procedures with the highest possibility of controlling medically untreatable incapacitating vertigo. Ironically, after 100 years of the introduction of both transmastoid labyrinthectomy and vestibular neurectomy, the choice of which procedure to use rests primarily on the evaluation of the hearing and of the surgical morbidity. Objective To review surgical labyrinthectomy and vestibular neurectomy for the treatment of incapacitating vestibular disorders...
April 2017: International Archives of Otorhinolaryngology
https://www.readbyqxmd.com/read/28367392/radiosurgical-ablation-of-the-renal-nerve-in-a-porcine-model-a-minimally-invasive-therapeutic-approach-to-treat-refractory-hypertension
#12
Nikhilesh Bhatt, Sarah A Long, Edward A Gardner, Jonathan Tay, Elena Ladich, David Chamberlain, Thomas J Fogarty, Patrick J Maguire
BACKGROUND: Hypertension is strongly associated with cardiovascular diseases such as heart failure, stroke, kidney disease, and has been correlated with an increased risk for heart attack. Current treatment regimens for hypertension are highly inadequate, with reports indicating that only 50.1% of the clinical population with the disease has their blood pressure under control. OBJECTIVE: To study the feasibility of using minimally invasive radiosurgery to ablate the renal nerves as a novel treatment for refractory hypertension, and to assess the safety and efficacy of such an approach...
February 26, 2017: Curēus
https://www.readbyqxmd.com/read/28344202/three-year-clinical-outcome-after-2nd-generation-cryoballoon-based-pulmonary-vein-isolation-for-the-treatment-of-paroxysmal-and-persistent-atrial-fibrillation%C3%A3-a-2-center-experience
#13
Christian-H Heeger, Erik Wissner, Milena Knöll, Benedikt Knoop, Bruno Reissmann, Shibu Mathew, Christian Sohns, Christine Lemes, Tilman Maurer, Francesco Santoro, Johannes Riedl, Osamu Inaba, Thomas Fink, Laura Rottner, Peter Wohlmuth, Britta Goldmann, Feifan Ouyang, Karl-Heinz Kuck, Andreas Metzner
BACKGROUND: Pulmonary vein isolation (PVI) using the 2nd-generation cryoballoon (CB2) for the treatment of atrial fibrillation (AF) has demonstrated encouraging acute and mid-term results. However, follow-up data on outcomes beyond 1 year are sparse. We investigated the 3-year outcome after PVI using the CB2.Methods and Results:100 patients with paroxysmal (PAF, 70/100 [70%] patients) or persistent AF (pAF, 30/100 [30%] patients) underwent CB2-based PVI in 2 experienced centers in Germany...
March 24, 2017: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/28339446/pulsed-radiofrequency-ablation-of-pudendal-nerve-for-treatment-of-a-case-of-refractory-pelvic-pain
#14
Vadim Petrov-Kondratov, Avneesh Chhabra, Stephanie Jones
Pudendal neuralgia (PN) is a result of pudendal nerve entrapment or injury, also called "Alcock syndrome." Pain that develops is often chronic, and at times debilitating. If conservative measures fail, invasive treatment modalities can be considered. The goal of this case report is to add to a small body of literature that a pulsed radiofrequency (PRF) ablation can be effectively used to treat PN and to show that high resolution MR neurography imaging can be used to detect pudendal neuropathy. CASE PRESENTATION: We present a case of a 51-year-old woman with 5 years of worsening right groin and vulva pain...
March 2017: Pain Physician
https://www.readbyqxmd.com/read/28339444/a-review-of-long-term-pain-relief-after-genicular-nerve-radiofrequency-ablation-in-chronic-knee-osteoarthritis
#15
Ferdinand Iannaccone, Samuel Dixon, Andrew Kaufman
BACKGROUND: Studies of radiofrequency ablation (RFA) of genicular nerves have reportedly significantly decreased pain up to 3 months post ablation, but no longer term effects have been reported. We performed an analysis of long-term pain relief of 31 RFA procedures of the genicular nerves to analyze the degree of pain relief past 3 months, culminating at 6 months. STUDY DESIGN: Chart review and study design was approved by Newark Health Sciences Institutional Review Board (IRB)...
March 2017: Pain Physician
https://www.readbyqxmd.com/read/28339430/comparative-effectiveness-review-of-cooled-versus-pulsed-radiofrequency-ablation-for-the-treatment-of-knee-osteoarthritis-a-systematic-review
#16
Anita Gupta, Daniel P Huettner, Matthew Dukewich
BACKGROUND: Patients suffering from osteoarthritis of the knee and patients post total knee arthroplasty often develop refractory, disabling chronic knee pain. Radiofrequency ablation, including conventional, pulsed, and cooled, has recently become more accepted as an interventional technique to manage chronic knee pain in patients who have failed conservative treatment or who are not suitable candidates for surgical treatment. OBJECTIVE: This systematic review aimed to analyze published studies on radiofrequency ablation to provide an overview of the current knowledge regarding variations in procedures, nerve targets, adverse events, and temporal extent of clinical benefit...
March 2017: Pain Physician
https://www.readbyqxmd.com/read/28338871/renal-sympathetic-denervation-a-viable-option-for-treating-resistant-hypertension
#17
Markus P Schlaich
Accumulating evidence from mainly uncontrolled clinical studies with various types of ablation catheters have shown that renal denervation (RDN) can be applied safely and is effective in lowering blood pressure (BP) in patients with treatment-resistant hypertension. Sustained BP lowering has been documented up to 3 years. Furthermore, RDN has been associated with regression of target organ damage, such as left ventricular hypertrophy, arterial stiffness, and others. Several studies indicate potential benefit in other common clinical conditions associated with increased sympathetic tone including chronic kidney disease and heart failure...
March 1, 2017: American Journal of Hypertension
https://www.readbyqxmd.com/read/28338768/integrative-blood-pressure-response-to-upright-tilt-post-renal-denervation
#18
Erin J Howden, Cara East, Justin S Lawley, Abigail S L Stickford, Myrthe Verhees, Qi Fu, Benjamin D Levine
BACKGROUND: Whether renal denervation (RDN) in patients with resistant hypertension normalizes blood pressure (BP) regulation in response to routine cardiovascular stimuli such as upright posture is unknown. We conducted an integrative study of BP regulation in patients with resistant hypertension who had received RDN to characterize autonomic circulatory control. METHODS: Twelve patients (60 ± 9 [SD] years, n = 10 males) who participated in the Symplicity HTN-3 trial were studied and compared to 2 age-matched normotensive (Norm) and hypertensive (unmedicated, HTN) control groups...
February 20, 2017: American Journal of Hypertension
https://www.readbyqxmd.com/read/28337546/robotic-thyroidectomy-versus-conventional-open-thyroidectomy-for-thyroid-cancer-a-systematic-review-and-meta-analysis
#19
Jing-Hua Pan, Hong Zhou, Xiao-Xu Zhao, Hui Ding, Li Wei, Li Qin, Yun-Long Pan
BACKGROUND: Despite the new technical alternative offered by the robotic surgery for minimally invasive thyroid surgery, the role of the robotic thyroidectomy (RT) in thyroid cancer has been highly disputed. This paper gives a systematic review and meta-analysis aiming to compare RT and open thyroidectomy (OT) based on the surgical outcomes and oncologic results. METHODS: Relevant literature was searched from various databases up to July 2016, including PubMed, MEDLINE, EMBASE, Cochrane Library, Web of science and Clinical Trials...
March 23, 2017: Surgical Endoscopy
https://www.readbyqxmd.com/read/28333375/renal-nerves-and-long-term-control-of-arterial-pressure
#20
John W Osborn, Jason D Foss
The objective of this review is to provide an in-depth evaluation of how renal nerves regulate renal and cardiovascular function with a focus on long-term control of arterial pressure. We begin by reviewing the anatomy of renal nerves and then briefly discuss how the activity of renal nerves affects renal function. Current methods for measurement and quantification of efferent renal-nerve activity (ERNA) in animals and humans are discussed. Acute regulation of ERNA by classical neural reflexes as well and hormonal inputs to the brain is reviewed...
March 16, 2017: Comprehensive Physiology
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