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Cryoablation

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https://www.readbyqxmd.com/read/29330130/perioperative-electrophysiology-study-in-tetralogy-of-fallot-patients-undergoing-pulmonary-valve-replacement-will-identify-those-at-high-risk-for-subsequent-ventricular-tachycardia
#1
Amneet Sandhu, Emily Ruckdeschel, William H Sauer, Kathryn K Collins, Joseph Kay, Amber Khanna, James Jaggers, David Campbell, Max Mitchell, Duy T Nguyen
BACKGROUND: Ventricular tachyarrhythmias (VAs) are the most common cause of death in patients with repaired Tetralogy of Fallot (TOF), but predicting those at risk remains a challenge. Electrophysiological study (EPS) has been proposed to risk stratify TOF patients. OBJECTIVE: We sought to evaluate a perioperative EPS-guided approach to risk stratify TOF patients undergoing PVR and guide concomitant cryoablation. METHODS: A prospective cohort study of TOF patients undergoing EPS at time of PVR from 2006-present was conducted at 2 centers...
January 9, 2018: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/29329442/conventional-radiofrequency-thermocoagulation-vs-pulsed-radiofrequency-neuromodulation-of-ganglion-impar-in-chronic-perineal-pain-of-nononcological-origin
#2
Hammad Usmani, G P Dureja, Roshan Andleeb, Nazia Tauheed, Naiyer Asif
Background: Chronic nononcological perineal pain has been effectively managed by ganglion Impar block. Chemical neurolysis, cryoablation, and radiofrequency ablation have been the accepted methods of blockade. Recently, pulsed radiofrequency, a novel variant of conventional radiofrequency, has been used for this purpose. Study Design: This was a prospective, randomized, double-blind study. Setting: Two different interventional pain management centers in India...
January 10, 2018: Pain Medicine: the Official Journal of the American Academy of Pain Medicine
https://www.readbyqxmd.com/read/29324328/long-term-outcomes-after-percutaneous-renal-cryoablation-performed-with-adjunctive-techniques
#3
Faraz Khan, Andrew M Ho, Joseph E Jamal, Meyer D Gershbaum, Aaron E Katz, Jason C Hoffmann
OBJECTIVE: To review the technical success of image-guided percutaneous cryoablation of renal masses in difficult anatomic locations using adjunctive techniques to displace critical structures away from the ablation zone, while also reporting longer-term outcomes within this patient population. METHODS: An IRB approved, retrospective analysis of 92 renal masses treated with percutaneous cryoablation revealed 15 cases utilizing adjunctive techniques. Tumor size and distance to adjacent organ before and after adjunctive technique and long-term outcomes were evaluated...
December 12, 2017: Clinical Imaging
https://www.readbyqxmd.com/read/29318633/long-term-outcomes-following-cryoablation-of-atrioventricular-nodal-reentrant-tachycardia-in-children
#4
Mehmet Karacan, Nida Çelik, Celal Akdeniz, Volkan Tuzcu
BACKGROUND: Atrioventricular nodal reentrant tachycardia (AVNRT) is a common tachyarrhythmia substrate in children, which is successfully treated by catheter ablation using radiofrequency or cryothermal energy. In recent years, cryoablation (Cryo) using electroanatomical system guidance is more commonly preferred for use in children in order to decrease the risk of an atrioventricular block. However, there are concerns regarding the long-term efficacy of Cryo in treating AVNRT. We aimed to evaluate the feasibility, safety, and long-term efficacy of Cryo for AVNRT in children...
January 9, 2018: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/29307242/technology-of-irreversible-electroporation-and-review-of-its-clinical-data-on-liver-cancers
#5
Emil I Cohen, David Field, George Emmett Lynskey, Alexander Y Kim
Irreversible electroporation (IRE) has developed as a novel percutaneous ablative technique over the past decade and its utility in the treatment of primary and metastatic liver disease has progressed rapidly. Areas Covered: After discussing the principles behind the technology and the practical steps in its use, this article offers a detailed analysis of the recent published work that evaluates its safety and efficacy. The strengths and weaknesses of other ablative techniques, including radiofrequency ablation, microwave ablation and cryoablation, are discussed in detail...
January 8, 2018: Expert Review of Medical Devices
https://www.readbyqxmd.com/read/29303914/current-opinion-in-urology-2017-focal-therapy-of-small-renal-lesions
#6
Brett A Johnson, Jeffrey A Cadeddu
PURPOSE OF REVIEW: With the increasing incidence of small renal masses (SRMs), ablative technologies are becoming more commonly utilized. With any nascent treatment modality, outcomes literature needs to be constantly re-evaluated. The purpose of this review is to revisit the most updated literature regarding the safety and efficacy of ablative treatments of renal lesions. RECENT FINDINGS: Recent literature demonstrates that small renal tumor ablation is safe and effective...
January 4, 2018: Current Opinion in Urology
https://www.readbyqxmd.com/read/29289258/identification-and-ablation-of-dormant-conduction-in-atrial-fibrillation-using-adenosine
#7
Faraz Khan Luni, Abdur Rahman Khan, Hemindermeet Singh, Haris Riaz, Sonia Ali Malik, Owais Khawaja, Talha Farid, Jennifer Cummings, Mohammed Taleb
BACKGROUND: Ablation is used for treatment of atrial fibrillation (AF) but recurrence is common. Dormant conduction is hypothesized to be responsible for these recurrences, and the role of adenosine in identification and ablation of these pathways is controversial with conflicting results on AF recurrence. MATERIALS AND METHODS: We conducted a meta-analysis for studies evaluating AF ablation and adenosine use. Included in the meta-analysis were human studies that compared ablation using adenosine or adenosine triphosphate (ATP) and reported freedom from AF in patients beyond a minimum follow-up of 6 months...
January 2018: American Journal of the Medical Sciences
https://www.readbyqxmd.com/read/29250288/thermal-field-in-cryoablation-procedures-for-pulmonary-veins-isolation-importance-of-esophageal-temperature-monitoring
#8
Antonio Fasano, Luca Anfuso, Giuseppe Arena, Claudio Pandozi
Background: Cryoablation procedures for pulmonary veins isolation have proved to be a successful treatment of atrial fibrillation, but exposure of surrounding organs to excessively low temperatures is potentially dangerous. Hence the importance of monitoring esophageal temperature and at the same time predicting the thermal field induced by the procedure, so to provide clinicians with a valuable tool to take critical decisions. Methods and Results: We formulate a mathematical model for computing the temperature in the relevant region and we use numerical simulations to interpret recorded clinical data...
April 2017: Journal of Atrial Fibrillation
https://www.readbyqxmd.com/read/29250269/bonus-vs-no-bonus-cryoballoon-isolation-for-paroxysmal-atrial-fibrillation-ablation
#9
Aysenur Ekizler, Dursun Aras, Serkan Cay, Ozcan Ozeke, Firat Ozcan, Serkan Topaloglu
Aims: To evaluate the benefit of Bonus freeze using second generation cryoballoon after pulmonary vein isolation (PVI) for paroxysmal atrial fibrillation (PAF). Methods: A bonus freeze is performed after proven pulmonary vein isolation (PVI) for cryoballoon ablation of paroxysmal atrial fibrillation (PAF) as standard. In the current study, no additional freeze (No Bonus) after PVI was compared with additional freeze (Bonus) after PVI using second generation cryoballoon...
February 2017: Journal of Atrial Fibrillation
https://www.readbyqxmd.com/read/29250247/coronary-air-embolism-during-cryoablation-of-atrial-fibrillation-a-catastrophic-complication-and-its-management
#10
Serkan Cay, Ozcan Ozeke, Firat Ozcan, Serkan Topaloglu, Dursun Aras
Various acute complications and their management during ablation of atrial fibrillation have been described. In the current report, coronary air embolism, its acute adverse effects and management of the problem were presented in a patient underwent cryoballoon ablation of atrial fibrillation.
October 2017: Journal of Atrial Fibrillation
https://www.readbyqxmd.com/read/29250235/a-simplified-trans-septal-puncture-technique-using-a-needle-free-approach-for-cryoablation-of-atrial-fibrillation
#11
Shohreh Honarbakhsh, Ben O'Brien, Richard J Schilling
Background: Trans-septal puncture (TSP) is routinely performed during treatment of atrial fibrillation (AF) and other electrophysiology procedures. The purpose of this retrospective observational study was the analysis of a novel needle free technique employed to gain access to the left atrium (LA). Methods: The SafeSept Needle Free guidewire was delivered, using no needle, to the interatrial septum via a standard cryoablation sheath and dilator under transoesophageal guidance...
August 2017: Journal of Atrial Fibrillation
https://www.readbyqxmd.com/read/29247032/thromboembolic-risks-of-the-procedural-process-in-second-generation-cryoballoon-ablation-procedures-analysis-from-real-time-transcranial-doppler-monitoring
#12
Shinsuke Miyazaki, Tomonori Watanabe, Takatsugu Kajiyama, Jin Iwasawa, Sadamitsu Ichijo, Hiroaki Nakamura, Hiroshi Taniguchi, Kenzo Hirao, Yoshito Iesaka
BACKGROUND: Atrial fibrillation ablation is associated with substantial risks of silent cerebral events (SCEs) or silent cerebral lesions. We investigated which procedural processes during cryoballoon procedures carried a risk. METHODS AND RESULTS: Forty paroxysmal atrial fibrillation patients underwent pulmonary vein isolation using second-generation cryoballoons with single 28-mm balloon 3-minute freeze techniques. Microembolic signals (MESs) were monitored by transcranial Doppler throughout all procedures...
December 2017: Circulation. Arrhythmia and Electrophysiology
https://www.readbyqxmd.com/read/29243490/percutaneous-cryoablation-of-breast-tumors-in-patients-with-stable-metastatic-breast-cancer-safety-feasibility-and-efficacy
#13
H Beji, F Pilleul, R Picard, O Tredan, A Bouhamama, M Peix, E Mavrovi, C Mastier
PURPOSE: To evaluate safety, feasibility, and efficacy of percutaneous cryoablation of breast tumors in patients with clinically stable metastatic breast cancer, and to compare the findings with reports on alternative procedures, namely surgery and local radiotherapy. METHODS: Seventeen female patients (average age of 54.8 years +/- 10.8 ; range 37-72) with primary breast tumor not surgically treated because of metastatic disease were included. Patients were treated for their primary lesion by percutaneous cryotherapy in period of stable disease...
December 15, 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/29232243/artifactual-hepatic-metastasis-on-fdg-pet-ct-secondary-to-cryoablation-for-adrenal-metastasis
#14
Joseph Frankl, Naghmehossadat Eshghi, Tamara F Lundeen, Phillip H Kuo
A 65-year-old woman with metastatic lung cancer was referred for CT-guided cryoablation of a right adrenal metastasis. For cryoablation, probes were placed into the adrenal region. FDG PET/CT 3 months later showed new activity in hepatic segment 6 initially suspected to be metastasis. Proximity of the hepatic lesion to the adrenal metastasis was a strange coincidence and prompted review of imaging from the cryoablation. CT showed the probe entered the liver, and postablation image demonstrated injury to the liver adjacent to the adrenal metastasis...
December 11, 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/29230498/trans-rectal-ultrasound-guided-autologous-blood-injection-in-the-interprostatorectal-space-prior-to-percutaneous-mri-guided-cryoablation-of-the-prostate
#15
Julien Garnon, Roberto Luigi Cazzato, Guillaume Koch, Ishaq Fahmi Uri, Georgia Tsoumakidou, Jean Caudrelier, Thibault Tricard, Afshin Gangi, Hervé Lang
OBJECTIVE: To report a novel technique of ultrasound-guided injection of autologous blood in the interprostatorectal space, in an attempt to facilitate ablative prostatic procedures by widening durably the space between the rectum and the prostate. MATERIALS AND METHODS: Between April and November 2016, four consecutive patients underwent the haemoprotection injection technique. For each patient, we recorded the time to perform the technique, the amount of injected blood, the achieved distances between the rectum and the prostate post-injection at fixed defined points (apex, middle, and base of prostate at the midline, left, and right sides of the gland), the extension of the ice ball outside the prostate capsule at those fixed points, and whether any residual blood was present on 1-month follow-up MRI...
December 11, 2017: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/29212363/laparoscopic-versus-percutaneous-cryotherapy-for-renal-tumours-a-systematic-review-and-meta-analysis
#16
Omar M Aboumarzouk, Mohamed Ismail, David Breen, Marco Van Strijen, Julein Garnon, Brunolf Lagerveld, Tommy Nielsen, Francis Keeley
BACKGROUND: Cryoablation has emerged as an alternative to the more invasive partial nephrectomy for small renal masses. The approach can be carried out by two techniques, either laparoscopic (LCA) or percutaneous with CT guidance (PCA). We aimed to compare between the two procedures. MATERIAL & METHODS: A systematic review and meta-analysis was conducted including studies comparing the two techniques. Outcomes included incomplete ablation, late local recurrence, cancer specific survival, procedure time, transfusion rates, hospital stay, and complications...
December 6, 2017: Journal of Endourology
https://www.readbyqxmd.com/read/29211301/outcome-in-patients-with-left-common-pulmonary-vein-after-cryoablation-with-second-generation-cryoballoon
#17
Thomas Beiert, Pia C Lodde, Lutz P T Linneborn, Jessica Werner, Lisa Prinz, Florian Stöckigt, Markus Linhart, Lars Lickfett, Georg Nickenig, Jan W Schrickel, René P Andrié
BACKGROUND: Pulmonary vein isolation (PVI) has become a widely accepted therapy in patients suffering from symptomatic atrial fibrillation (AF). HYPOTHESIS: AF-free survival differs in patients with left common pulmonary vein (LCPV) after PVI with second-generation cryoballoon. METHODS: We included patients scheduled for first PVI for paroxysmal or persistent AF. Symptomatic and/or documented arrhythmia episodes (>30 seconds) were defined as AF recurrence, excluding a 3-month blanking period...
December 6, 2017: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/29204695/percutaneous-image-guided-ablation-in-the-treatment-of-osseous-metastases-from-non-small-cell-lung-cancer
#18
Yuntong Ma, Adam N Wallace, Saiama N Waqar, Daniel Morgensztern, Thomas P Madaelil, Anderanik Tomasian, Jack W Jennings
INTRODUCTION: Percutaneous image-guided ablation is an emerging minimally invasive therapy for patients with metastatic bone disease for whom radiation therapy is ineffective or contraindicated. The purpose of this study was to examine the safety and efficacy of percutaneous ablation in achieving pain palliation and local tumor control of osseous metastases from non-small cell lung cancer (NSCLC). METHODS: A retrospective review was performed of 76 musculoskeletal metastases in 45 patients treated with percutaneous ablation...
December 4, 2017: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/29201903/cryoablation-of-primary-breast-cancer-in-patients-with-metastatic-disease-considerations-arising-from-a-single-centre-data-analysis
#19
Claudio Pusceddu, Luca Melis, Nicola Ballicu, Paolo Meloni, Valeria Sanna, Alberto Porcu, Alessandro Fancellu
Background: Patients presenting with stage IV breast cancer might benefit by removal of the primary tumor. We report our experience with CT-guided cryoablation of the primary tumor, with the aim of evaluating its role in this subgroup of patients. Patients and Methods: Data of 35 patients with mean age of 58 years with breast cancer at stage IV submitted to CT-guided cryoablation of the primary tumor between 2010 and 2016 were prospectively evaluated. All patients, except three, were preoperatively and postoperatively evaluated with breast MRI to assess the extent of tumor necrosis...
2017: BioMed Research International
https://www.readbyqxmd.com/read/29193606/real-time-probe-tracking-using-em-optical-sensor-for-mri-guided-cryoablation
#20
Wenpeng Gao, Baichuan Jiang, Daniel F Kacher, Barry Fetics, Erez Nevo, Thomas C Lee, Jagadeesan Jayender
BACKGROUND: A method of real-time, accurate probe tracking at the entrance of the MRI bore is developed, which, fused with pre-procedural MR images, will enable clinicians to perform cryoablation efficiently in a large workspace with image guidance. METHODS: Electromagnetic (EM) tracking coupled with optical tracking is used to track the probe. EM tracking is achieved with an MRI-safe EM sensor working under the scanner's magnetic field to compensate the line-of-sight issue of optical tracking...
November 28, 2017: International Journal of Medical Robotics + Computer Assisted Surgery: MRCAS
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