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Percutaneous ablation

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https://www.readbyqxmd.com/read/27920857/aortic-air-embolus-following-pulmonary-tumor-radiofrequency-ablation
#1
Roger Stimpson, Suhag Patel, Rohan Shah, Junjian Huang, Sumit Chhadia, Vivek Yedavalli, Mark Saker
Aortic air embolism following a computed tomography (CT) guided percutaneous transthoracic procedure is a rare occurrence, but one that can have dire consequences. We present a case of a 48-year old female diagnosed with aortic air embolism during percutaneous radiofrequency ablation of a pulmonary mass. A large amount of intra-aortic air can be seen on the CT images just before the patient suffered acute cardiac arrest. Although this is a rare occurrence, recognition and management of this complication is important for physicians who perform any percutaneous transthoracic procedures...
December 2016: Radiology case reports
https://www.readbyqxmd.com/read/27919123/-clinical-study-of-percutaneous-radiofrequency-ablation-for-small-renal-tumor
#2
Ryo Fujiwara, Hiroto Yamashita, Katsuji Imoto, Michio Yamazaki, Chul Jang Kim
Percutaneous radiofrequency ablation (PRFA) has been applied as an option of minimally invasive treatment for small renal tumor. We retrospectively evaluated 5 patients with small renal tumor for whom PRFA was performed at our hospital. The average age was 69.6 years (range 45-86), average tumor diameter 20.0 mm (8-34), average preoperative glomerular filtration rate (eGFR) 66.8 ml/min/1.73m2 (42. 1-93.2), and follow-up period was 23.4 months (8-34). There were two minor complications (grade 1), including perirenal hematoma and pain at the probe insertion site in each patient...
October 2016: Hinyokika Kiyo. Acta Urologica Japonica
https://www.readbyqxmd.com/read/27919009/successful-percutaneous-ct-guided-microwave-ablation-of-adrenal-gland-for-ectopic-cushing-syndrome
#3
Rebecca Zener, Andrew Zaleski, Stan H Van Uum, Daryl K Gray, Amol Mujoomdar
Adrenocorticotropic hormone production by pancreatic neuroendocrine tumor (PNET) is rare and results in hyperstimulation of the adrenal gland to produce ectopic Cushing syndrome. Our case showcases the safety and effectiveness of percutaneous CT-guided microwave ablation of the adrenal gland in a 49-year-old female with PNET and hepatic metastases who presented with ectopic Cushing syndrome despite surgical resection of the primary pancreatic tumor and left adrenal gland. Prior to ablation, the right adrenal gland measured 4...
November 29, 2016: Clinical Imaging
https://www.readbyqxmd.com/read/27914172/cryotherapy-of-renal-lesions-enhancement-on-contrast-enhanced-sonography-on-postoperative-day-1-does-not-imply-viable-tissue-persistence
#4
Michele Bertolotto, Salvatore Siracusano, Calogero Cicero, Mariano Iannelli, Tommaso Silvestri, Antonio Celia, Alessandro Guarise, Fulvio Stacul
OBJECTIVES: To investigate whether persistent enhancement detected on contrast-enhanced sonography at postoperative day 1 (early contrast-enhanced sonography) after cryoablation of renal tumors implies the presence of residual viable tumor tissue, defined as residual enhancing tissue on reference imaging (computed tomography or magnetic resonance imaging) performed 6 months after the procedure. METHODS: Seventy-four patients with percutaneous cryoablation of renal tumors had early contrast-enhanced sonography from November 2011 to August 2015...
December 3, 2016: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/27913340/efficient-3d-reconstruction-in-ultrasound-elastography-via-a-sparse-iteration-based-on-markov-random-fields
#5
Atul Ingle, Tomy Varghese, William Sethares
Percutaneous needle-based liver ablation procedures are becoming increasingly common for treatment of small isolated tumors in hepatocellular carcinoma patients who are not candidates for surgery. Rapid three dimensional visualization of liver ablations has potential clinical value because it can enable interventional radiologists to plan and execute needle-based ablation procedures with real time feedback. Ensuring the right volume of tissue is ablated is desirable to avoid recurrence of tumors from residual untreated cancerous cells...
November 29, 2016: IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
https://www.readbyqxmd.com/read/27909505/malignancy-associated-iatrogenic-iliopsoas-abscess-venous-access-complication-from-ablation-procedure
#6
Sandia Iskandar Md, Moustapha Atoui Md, Muhammad Rizwan Afzal Md, Madhav Lavu Md, Madhu Reddy Md, Dhanunjaya Lakkireddy Md
Iliopsoas abscess is a rare condition with a high rate of mortality and morbidity if left untreated. It can occur from hematogenous or lymphatic spread from distant structures or as a result of contiguous spread from adjacent structures. The disease typically occurs in patients with immunocompromised status and the symptoms can be non-specific.1,2 Generally, infectious complications from venous access during atrial fibrillation (AF) procedure are uncommon, and an iatrogenic iliopsoas abscess from percutaneous cardiac procedures has never been reported...
April 2016: Journal of Atrial Fibrillation
https://www.readbyqxmd.com/read/27909480/a-case-of-wide-complex-tachycardia-in-a-patient-with-a-biventricular-assist-device
#7
Abrams Mark P, Whang William, Iyer Vivek, Garan Hasan, Biviano Angelo
This case report highlights the variety of wide complex tachycardias, and the need for their prompt management, in the growing population of patients with circulatory support devices. We present a case that demonstrates how a wide complex supraventricular tachycardia in a patient with a biventricular assist device can be safely and effectively targeted for treatment using percutaneous radiofrequency catheter ablation, allowing for clinical improvement, weaning of RVAD treatment, and discharge home with LVAD alone...
February 2016: Journal of Atrial Fibrillation
https://www.readbyqxmd.com/read/27909475/ablation-of-atrial-fibrillation-in-combination-with-left-atrial-appendage-occlusion-in-a-single-procedure-rationale-and-technique
#8
REVIEW
Ignacio García-Bolao, Naiara Calvo, Alfonso Macias, Joaquin Barba, Nahikari Salterain, Pablo Ramos, Gabriel Ballesteros, Renzo Neglia
Atrial fibrillation (AF) is the most common sustained cardiac arrhythmia, and is associated with a fivefold increase in the risk of ischemic stroke and systemic embolism. Left atrial appendage (LAA) is the source of thrombi in up to 90% of patients with nonvalvular atrial fibrillation (AF). Although thromboembolic prophylaxis by means of oral anticoagulants (OAC) has been shown to be very effective (OAC), they also confer an inevitably risk of serious bleeding. Catheter ablation (CA) is an effective treatment for symptomatic AF but its role in stroke prevention remains unproved...
February 2016: Journal of Atrial Fibrillation
https://www.readbyqxmd.com/read/27903081/percutaneous-microwave-ablation-of-renal-cell-carcinoma-is-safe-in-patients-with-renal-dysfunction
#9
Yan Lin, Ping Liang, Xiao-Ling Yu, Jie Yu, Zhi-Gang Cheng, Zhi-Yu Han, Fangyi Liu
OBJECTIVES: To present the clinical effect of microwave ablation(MWA) on renal cell carcinoma(RCC) of the patients with renal dysfunction, mainly focusing on the extent of renal tumor control and damage to the residual kidney function. METHODS AND MATERIALS: From 2006 to 2014, 19 tumors of 18 patients with renal dysfunction underwent percutaneous ultrasound-guided MWA in our institution. The tumor diameters range from 1.9 to 5.0cm. The serum creatinine and urea levels of each patient pre-MWA, 1 day after MWA and the most recent occasion on record at our institution were collected...
November 30, 2016: International Journal of Hyperthermia
https://www.readbyqxmd.com/read/27901458/recurrence-of-disk-herniation-following-percutaneous-laser-disk-ablation-in-dogs-with-a-history-of-thoracolumbar-intervertebral-disk-herniation-303-cases-1994-2011
#10
Danielle R Dugat, Kenneth E Bartels, Mark E Payton
OBJECTIVE To determine rate of recurrence of disk herniation in dogs that underwent percutaneous laser disk ablation (PLDA) because of a previous episode of suspected or confirmed thoracolumbar intervertebral disk herniation (IVDH). DESIGN Retrospective case series. ANIMALS 303 dogs that underwent PLDA and for which a minimum of 3 years of follow-up information was available (n = 294) or for which recurrence was documented within 3 years after the procedure (9). PROCEDURES Information on signalment, previous episodes of IVDH, specifics of the PLDA procedure, and recurrence was obtained from the medical records...
December 15, 2016: Journal of the American Veterinary Medical Association
https://www.readbyqxmd.com/read/27900591/treatment-of-lung-tumours-with-high-energy-microwave-ablation-a-single-centre-experience
#11
Anna Maria Ierardi, Andrea Coppola, Natalie Lucchina, Gianpaolo Carrafiello
The purpose of our study is to report safety, technical success, effectiveness, local progression-free survival (LPFS) and overall survival of percutaneous microwave ablation (MWA) to treat lung tumours unsuitable for surgery. Nineteen patients with thirty-one tumours (mean diameter 2.4 cm) underwent percutaneous MWA in 28 sessions. Microwave ablation was carried out using a 2450-MHz generator (Emprint/Covidien, Boulder, CO, USA). Procedures were performed under cone-beam CT (CBCT) and under fluoro-CT (one session) guidance...
January 2017: Medical Oncology
https://www.readbyqxmd.com/read/27900300/treatment-of-proximal-hamstring-tendinopathy-related-sciatic-nerve-entrapment-presentation-of-an-ultrasound-guided-intratissue-percutaneous-electrolysis-application
#12
Gabriele Mattiussi, Carlos Moreno
BACKGROUND: Proximal Hamstring Tendinopathy-related Sciatic Nerve Entrapment (PHTrSNE) is a neuropathy caused by fibrosis interposed between the semimembranosus tendon and the sciatic nerve, at the level of the ischial tuberosity. METHODS: Ultrasound-guided Intratissue Percutaneous Electrolysis (US-guided EPI) involves galvanic current transfer within the treatment target tissue (fibrosis) via a needle 0.30 to 0.33 mm in diameter. The galvanic current in a saline solution instantly develops the chemical process of electrolysis, which in turn induces electrochemical ablation of fibrosis...
April 2016: Muscles, Ligaments and Tendons Journal
https://www.readbyqxmd.com/read/27894264/optical-coherence-tomography-findings-after-longitudinal-ablation-for-an-underexpanded-stent-in-a-heavily-calcified-lesion-a-case-report
#13
Masahiro Koide, Keiji Inoue, Akiko Matsuo, Hiroshi Fujita
BACKGROUND: Heavy coronary artery calcification is responsible for stent underexpansion, which is associated with increased in-stent restenosis. Here we report a case in which optical coherence tomography (OCT) demonstrated that the metal component of an underexpanded stent previously implanted in a heavy calcified lesion had been completely removed after ablation with rotational atherectomy. CASE PRESENTATION: An 83-year-old man with exertional angina was referred to our hospital...
November 29, 2016: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/27893681/combination-of-transcatheter-arterial-chemoembolization-and-ct-guided-percutaneous-segment-ablation-for-hepatocellular-carcinoma-therapy-a-retrospective-study
#14
Wei Li, Yang Wang, Wenfeng Gao, Jiasheng Zheng
Treatment option for liver cancer patients with large tumor >5 cm and/or portal vein tumor thrombosis is very limited. New treatment strategy is badly needed. Our study is to determine the safety and treatment efficacy of a new minimally invasive treatment strategy-liver segment thermal ablation.Late-stage hepatocellular carcinoma patients were included and treated with percutaneous ablation to destroy the entire tumor-containing liver segment to reduce reoccurrence and prolong survival. Transcatheter arterial chemoembolization was used before ablation to label tumor margin...
November 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27890862/randomized-blinded-and-controlled-comparative-study-of-chemical-and-radiofrequency-based-renal-denervation-in-a-porcine-model
#15
Stefan Bertog, Tim A Fischell, Félix Vega, Vartan Ghazarossian, Atul Pathak, Laura Vaskelyte, Darrin Kent, Horst Sievert, Elena Ladich, Kazuyuki Yahagi, Renu Virmani
AIMS: The blood pressure lowering effect of percutaneous renal denervation (RDN) is controversial. Success of RDN may be device-dependent. We sought to compare the efficacy of RDN by chemical neurolysis using alcohol (Peregrine System™ Infusion Catheter, Ablative Solutions, Inc. Menlo Park, CA, USA) to RDN by radiofrequency (RF) ablation with the single-electrode RF catheter (Symplicity™ Flex, Medtronic Inc., Minneapolis, MN, USA) in a porcine model. METHODS AND RESULTS: This was a prospective, randomized, blinded study...
November 29, 2016: EuroIntervention
https://www.readbyqxmd.com/read/27890422/treatment-efficacy-of-ct-guided-percutaneous-microwave-ablation-for-primary-hepatocellular-carcinoma
#16
T Yin, W Li, P Zhao, Y Wang, J Zheng
AIM: To evaluate the treatment efficacy and potential complications of computed tomography (CT)-guided microwave ablation for primary hepatocellular carcinoma (HCC). MATERIALS AND METHODS: Data were collected and analysed from 220 HCC patients treated with CT-guided microwave ablation and followed up for 2 years. Independent risk factors for overall survival and progression-free survival (PFS) were analysed. RESULTS: Among all cases followed, the cumulative overall survival rates at 1 and 2 years were 95...
November 25, 2016: Clinical Radiology
https://www.readbyqxmd.com/read/27889091/breath-hold-pet-ct-guided-tumour-ablation-under-general-anaesthesia-accuracy-of-tumour-image-registration-and-projected-ablation-zone-overlap
#17
P B Shyn, S Tremblay-Paquet, K Palmer, S Tatli, K Tuncali, O I Olubiyi, N Hata, S G Silverman
AIM: To assess single-breath-hold combined positron-emission tomography/computed tomography (PET/CT) for accuracy of tumour image registration and projected ablation volume overlap in patients undergoing percutaneous PET/CT-guided tumour-ablation procedures under general anaesthesia. MATERIALS AND METHODS: Eight patients underwent 12 PET/CT-guided tumour-ablation procedures to treat 20 tumours in the lung, liver, or adrenal gland. Using breath-hold PET/CT, the centre of the tumour was marked on each PET and CT acquisition by four readers to assess two- (2D) and three-dimensional (3D) spatial misregistration...
November 23, 2016: Clinical Radiology
https://www.readbyqxmd.com/read/27882510/planned-treatment-of-advanced-metastatic-disease-with-completion-ablation-after-hepatic-resection
#18
Bruno C Odisio, Suguru Yamashita, Livia Frota, Steven Y Huang, Scott E Kopetz, Kamran Ahrar, Yun Shin Chun, Thomas A Aloia, Marshall E Hicks, Sanjay Gupta, Jean-Nicolas Vauthey
PURPOSE: The aim of this study is to describe a modified treatment strategy with image-guided percutaneous ablation after hepatic resection as a completion method to surgical eradication of liver metastases ("completion ablation [CA]"). METHODS: We conducted a retrospective analyses of patients who underwent CA within 180 days from the liver surgical resection to eradicate liver metastases present on the pre-surgical cross-sectional imaging or identified during intraoperative ultrasound that were not resected due to various reasons...
November 23, 2016: Journal of Gastrointestinal Surgery: Official Journal of the Society for Surgery of the Alimentary Tract
https://www.readbyqxmd.com/read/27875475/scar-based-catheter-ablation-for-persistent-atrial-fibrillation
#19
Pablo B Nery, Rebecca Thornhill, Girish M Nair, Elena Pena, Calum J Redpath
PURPOSE OF REVIEW: Percutaneous catheter ablation can be an effective treatment for paroxysmal atrial fibrillation. However, catheter ablation for the treatment of persistent atrial fibrillation or long-standing persistent atrial fibrillation is associated with success rates of 45-50% at 1 year. To address the challenge of ablating patients with persistent atrial fibrillation, several approaches have been proposed. Atrial scar-based catheter ablation is a promising strategy for ablation of persistent atrial fibrillation...
January 2017: Current Opinion in Cardiology
https://www.readbyqxmd.com/read/27870683/increasing-role-of-image-guided-ablation-in-the-treatment-of-musculoskeletal-tumors
#20
Anil Nicholas Kurup, Matthew R Callstrom
In the last decade, percutaneous treatment of musculoskeletal (MSK) tumors has become more established in routine clinical care while also undergoing a number of advancements. Ablative techniques to palliate painful skeletal metastases have gained wide acceptance, while goals for ablation have evolved to include local control of oligometastases and desmoid tumors. Bone consolidation or augmentation is now frequently used in conjunction with or instead of ablation of skeletal tumors to stabilize pathologic fractures or prevent further morbidity that could result from fractures caused by tumor progression...
November 2016: Cancer Journal
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