keyword
MENU ▼
Read by QxMD icon Read
search

Focal Ablation

keyword
https://www.readbyqxmd.com/read/29351156/liquid-nitrogen-spray-cryotherapy-is-associated-with-less-postprocedural-pain-than-radiofrequency-ablation-in-barrett-s-esophagus-a-multicenter-prospective-study
#1
Sanjeev S Solomon, Shivangi Kothari, George B Smallfield, Sumant Inamdar, Peter Stein, Viviana A Rodriguez, Adam P Sima, Krystle Bittner, Alvin M Zfass, Vivek Kaul, Arvind J Trindade
GOALS AND BACKGROUND: Two common endoscopic therapies for eradication of dysplastic Barrett's esophagus are radiofrequency ablation (RFA) and liquid nitrogen spray cryotherapy (LNC). There is no data comparing postprocedural pain. This study aimed to compare the incidence of postprocedural pain between the 2 ablation modalities. METHODS: This is a multicenter prospective study in which pain intensity scores and the presence of dysphagia were assessed immediately before and after treatment, 48 hours posttreatment and at 3 weeks posttreatment using validated instruments...
January 18, 2018: Journal of Clinical Gastroenterology
https://www.readbyqxmd.com/read/29347855/low-power-bipolar-radiofrequency-ablation-and-vertebral-augmentation-for-the-palliative-treatment-of-spinal-malignancies
#2
Roberto Luigi Cazzato, Julien Garnon, Jean Caudrelier, Pramod Prabhakar Rao, Guillaume Koch, Afshin Gangi
AIM: To investigate the analgesic properties and the safety of low power bipolar radiofrequency ablation (RFA) performed with internally cooled electrodes and vertebral augmentation for the treatment of painful spinal malignancies. MATERIALS AND METHODS: Consent was waived for retrospective study participation. Review of electronic records identified 11 consecutive patients (6 females; 5 males; mean age 61.3 ± 11.6 years) with one-index painful spinal tumour, who were treated between June 2016 and October 2017 with bipolar RFA and vertebral augmentation...
January 18, 2018: International Journal of Hyperthermia
https://www.readbyqxmd.com/read/29346633/intraoperative-epicardial-focal-pulmonary-venous-electrocardiography-in-patients-with-atrial-fibrillation
#3
Grzegorz Suwalski, Robert Emery, Jakub Mróz, Kamil Kaczejko, Leszek Gryszko, Andrzej Cwetsch, Andrzej Skrobowski
OBJECTIVES: In patients referred to off-pump coronary artery bypass grafting, pulmonary vein isolation (PVI) may be used for those with persistent atrial fibrillation (AF), an alternative to the Maze procedure. However, the success rate of PVI in persistent AF is limited. The study assesses the prognostic value of focal epicardial electrocardiography of the pulmonary veins (PVs) for surgical ablation results. METHODS: We mapped 140 PV in 35 cases undergoing off-pump coronary artery bypass grafting...
January 15, 2018: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/29344680/acute-and-long-term-outcome-of-focal-atrial-tachycardia-ablation-in-the-real-world-results-of-the-german-ablation-registry
#4
Sonia Busch, Mathias Forkmann, Karl-Heinz Kuck, Thorsten Lewalter, Hüseyin Ince, Florian Straube, Heinrich Wieneke, K R Julian Chun, Lars Eckardt, Claus Schmitt, Matthias Hochadel, Jochen Senges, Johannes Brachmann
INTRODUCTION: Catheter ablation of focal atrial tachycardia (FAT) can be a challenging procedure and results have been rarely described. The purpose of this study was to determine the characteristics and results of FAT ablation in the large cohort of the German Ablation Registry. METHODS: The German Ablation Registry is a nationwide prospective multicenter database including 12566 patients who underwent an ablation procedure between 2007 and 2010. Among them 431 (3...
January 17, 2018: Clinical Research in Cardiology: Official Journal of the German Cardiac Society
https://www.readbyqxmd.com/read/29343140/a-heterogeneous-tissue-model-for-treatment-planning-for-magnetic-resonance-guided-laser-interstitial-thermal-therapy
#5
Drew Mitchell, Samuel Fahrenholtz, Christopher MacLellan, Dhiego Bastos, Ganesh Rao, Sujit Prabhu, Jeffrey Weinberg, John Hazle, Jason Stafford, David Fuentes
We evaluated a physics-based model for planning for magnetic resonance-guided laser interstitial thermal therapy for focal brain lesions. Linear superposition of analytical point source solutions to the steady-state Pennes bioheat transfer equation simulates laser-induced heating in brain tissue. The line integral of the photon attenuation from the laser source enables computation of the laser interaction with heterogeneous tissue. Magnetic resonance thermometry data sets (n = 31) were used to calibrate and retrospectively validate the model's thermal ablation prediction accuracy, which was quantified by the Dice similarity coefficient (DSC) between model-predicted and measured ablation regions (T > 57°C)...
January 17, 2018: International Journal of Hyperthermia
https://www.readbyqxmd.com/read/29337089/thermal-field-distributions-of-ablative-experiments-using-cyst-mimicking-phantoms-comparison-of-microwave-and-radiofrequency-ablation
#6
Xiao-Wen Huang, Fang Nie, Zeng-Cheng Wa, Hang-Tong Hu, Qing-Xiu Huang, Huan-Ling Guo, Qiao Zheng, Xiao-Yan Xie, Wei Wang, Ming-De Lu
RATIONALE AND OBJECTIVES: The objective of this study was to explore the thermal field distribution of cystic lesions undergoing microwave ablation (MWA) and radiofrequency ablation (RFA) using in vitro phantoms. MATERIALS AND METHODS: Cyst-mimicking lesions filled with sodium chloride (NaCl) solution in acrylamide phantoms were treated with MWA and RFA in vitro. The radiofrequency electrodes or MWA antennas were implanted in the centers of the artificial cystic lesions...
January 11, 2018: Academic Radiology
https://www.readbyqxmd.com/read/29336937/the-combination-of-stereo-eeg-and-radiofrequency-ablation
#7
Hélène Catenoix, Pierre Bourdillon, Marc Guénot, Jean Isnard
SEEG-guided radiofrequency thermocoagulation (SEEG-guided RFTC), a combination of Stereo-electroencephalography (SEEG) and radiofrequency thermocoagulation (RFTC), has been performed since 2001 in drug resistant epilepsy. The interest of this procedure is to aim at total or partial destruction of the epileptogenic zone, as tailored in each individual patient by the SEEG exploration. These multiple SEEG-guided RFTC lesions of epileptic foci are produced by using a radiofrequency generator connected to the electrode contacts...
January 9, 2018: Epilepsy Research
https://www.readbyqxmd.com/read/29335228/irreversible-electroporation-for-locally-advanced-pancreatic-cancer-through-a-minimally-invasive-surgery-supported-by-laparoscopic-ultrasound
#8
Ernesto Tartaglia, Massimiliano Fabozzi, Antonia Rizzuto, Anna Settembre, Roberta Abete, Ludovica Guerriero, Pasqualino Favoriti, Diego Cuccurullo, Francesco Corcione
INTRODUCTION: Pancreatic cancer is one of the most lethal cancers worldwide, with 5-years survival rate as low as 6%. The majority of pancreatic cancer patients present locally advanced or metastatic disease at diagnosis. Typically, patients affected by locally advanced pancreatic cancer (LAPC) do not undergo radical surgery but are treated with focal ablative therapies. However, a high rate of morbidity due to the heat sink effect has limited the application of ablative techniques on a routine basis in LAPC patients...
December 28, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/29332078/magnetic-resonance-guided-high-intensity-focused-ultrasound-for-treating-movement-disorders
#9
Young Goo Kim, Eun Jung Kweon, Won Seok Chang, Hyun Ho Jung, Jin Woo Chang
Transcranial magnetic resonance-guided focused ultrasound (MRgFUS) surgery has recently gained favor as a novel, noninvasive alternative to conventional neurosurgery. In contrast to traditional ablative interventions, transcranial MRgFUS surgery is entirely imaging-guided and uses continuous temperature measurements at the target and surrounding tissue taken in real-time. Unlike Gamma Knife radiosurgery, MRgFUS surgery can make a lesion immediately and does not use ionizing radiation. Moreover, since no metallic device is implanted, MR imaging-based diagnosis is not restricted throughout life...
2018: Progress in Neurological Surgery
https://www.readbyqxmd.com/read/29330332/identification-and-characterization-of-sites-where-persistent-atrial-fibrillation-is-terminated-by-localized-ablation
#10
Junaid A B Zaman, William H Sauer, Mahmood I Alhusseini, Tina Baykaner, Ryan T Borne, Christopher A B Kowalewski, Sonia Busch, Paul C Zei, Shirley Park, Mohan N Viswanathan, Paul J Wang, Johannes Brachmann, David E Krummen, John M Miller, Wouter Jan Rappel, Sanjiv M Narayan, Nicholas S Peters
BACKGROUND: The mechanisms by which persistent atrial fibrillation (AF) terminates via localized ablation are not well understood. To address the hypothesis that sites where localized ablation terminates persistent AF have characteristics identifiable with activation mapping during AF, we systematically examined activation patterns acquired only in cases of unequivocal termination by ablation. METHODS AND RESULTS: We recruited 57 patients with persistent AF undergoing ablation, in whom localized ablation terminated AF to sinus rhythm or organized tachycardia...
January 2018: Circulation. Arrhythmia and Electrophysiology
https://www.readbyqxmd.com/read/29315991/efficacy-of-catheter-ablation-of-focal-sources-in-persistent-atrial-fibrillation
#11
Yoshihide Takahashi, Syu Yamashita, Masahito Suzuki, Kento Yabe, Kenzo Hirao
INTRODUCTION: Recent studies suggest that atrial fibrillation (AF) is maintained by electrical activity arising from focal sources. We sought to test whether catheter ablation that targets focal sources can improve on current ablation protocols for persistent AF. METHODS AND RESULTS: In patients with persistent AF whose AF did not terminate with pulmonary vein isolation, the left atrium was mapped with a 20-pole high-density mapping catheter using CARTO®3 navigation...
January 9, 2018: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/29306849/verbal-learning-and-memory-outcome-in-selective-amygdalohippocampectomy-versus-temporal-lobe-resection-in-patients-with-hippocampal-sclerosis
#12
Mette Thrane Foged, Kirsten Vinter, Louise Stauning, Troels W Kjær, Brice Ozenne, Sándor Beniczky, Olaf B Paulson, Flemming Find Madsen, Lars H Pinborg
PURPOSE: With the advent of new very selective techniques like thermal laser ablation to treat drug-resistant focal epilepsy, the controversy of resection size in relation to seizure outcome versus cognitive deficits has gained new relevance. The purpose of this study was to test the influence of the selective amygdalohippocampectomy (SAH) versus nonselective temporal lobe resection (TLR) on seizure outcome and cognition in patients with mesial temporal lobe epilepsy (MTLE) and histopathological verified hippocampal sclerosis (HS)...
January 4, 2018: Epilepsy & Behavior: E&B
https://www.readbyqxmd.com/read/29305201/initial-assessment-of-the-efficacy-of-irreversible-electroporation-ire-in-the-focal-treatment-of-localised-renal-cell-carcinoma-rcc-with-delayed-interval-kidney-tumour-resection-irene-trial-an-ablate-and-resect-pilot-study
#13
Johann J Wendler, Maciej Pech, Frank Fischbach, Julian Jürgens, Björn Friebe, Daniel Baumunk, Markus Porsch, Simon Blaschke, Daniel Schindele, Sandra Siedentopf, Jens Ricke, Martin Schostak, Jens Köllermann, Uwe B Liehr
OBJECTIVES: To assess the efficacy of irreversible electroporation (IRE) ablation of pT1a renal-cell carcinoma (RCC) in the first prospective, monocentric Phase 2a pilot ablate-and-resect study (IRENE trial). It has been postulated that focal IRE can bring about complete ablation of soft-tissue tumours with protection of healthy peritumoral tissue and anatomical structures. METHODS: The first seven study patients, with biopsy-proven pT1a RCC (15-39mm) underwent IRE...
January 2, 2018: Urology
https://www.readbyqxmd.com/read/29303914/current-opinion-in-urology-2017-focal-therapy-of-small-renal-lesions
#14
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/29296582/successful-catheter-ablation-of-focal-ventricular-tachycardia-originating-from-right-bundle-branch-without-making-right-bundle-branch-block-using-pharmacologic-induction-by-landiolol
#15
Shigeo Watanabe, Tsugutoshi Suzuki, Yoko Yoshida, Yoshihide Nakamura
No abstract text is available yet for this article.
December 2017: HeartRhythm Case Reports
https://www.readbyqxmd.com/read/29277753/managing-focal-nodular-hyperplasia-of-the-liver-surgery-or-minimally-invasive-approaches-a-review-of-the-preferable-treatment-options
#16
REVIEW
Edoardo Virgilio, Marco Cavallini
BACKGROUND/AIM: Focal nodular hyperplasia (FNH) is the second most common benign tumor of the liver. As of 2017, many clinical, radiological and surgical features have been largely documented. On the other hand, little is still known about the correlation of FNH with hepatocellular carcinoma, nor the preferable modality of treatment. Our aim was to elucidate the latter topic. MATERIALS AND METHODS: We investigated the pertinent literature available as of 2017 through four popular search engines (PubMed, Science Direct, Scopus and Google Scholar)...
January 2018: Anticancer Research
https://www.readbyqxmd.com/read/29277585/a-comparison-of-time-taken-to-return-to-baseline-erectile-function-following-focal-and-whole-gland-ablative-therapies-for-localized-prostate-cancer-a-systematic-review
#17
REVIEW
Nicholas A Faure Walker, Joseph M Norris, Taimur T Shah, Tet Yap, Paul Cathcart, Caroline M Moore, Hashim U Ahmed, Mark Emberton, Suks Minhas
OBJECTIVES: To systematically review erectile function (EF) outcomes following primary whole gland (WG) and focal ablative therapies for localized prostate cancer to ascertain whether the treatment modality or intended treatment volume affects the time taken to recover baseline EF. METHOD AND MATERIALS: A systematic review was performed according to the preferred reporting items for systematic review and meta-analysis statement. Inclusion criteria were men with localized prostate cancer treated with primary, ablative therapy...
December 22, 2017: Urologic Oncology
https://www.readbyqxmd.com/read/29250296/focal-atrial-fibrillation-from-the-superior-vena-cava
#18
Andres Enriquez, Jackson J Liang, Pasquale Santangeli, Francis E Marchlinski, Michael P Riley
We report the case of a 66 year-old male who underwent catheter ablation for drug-refractory paroxysmal atrial fibrillation (AF) at our institution. Radiofrequency catheter ablation was performed using a three-dimensional electroanatomical mapping system. During ablation of the pulmonary veins (PV), right atrial ectopics were noted to repeatedly trigger AF and atrial tachycardia (AT). After PV isolation, mapping of the right atrium revealed that the superior vena cava (SVC) was in AF, while both atria were in an organized AT...
April 2017: Journal of Atrial Fibrillation
https://www.readbyqxmd.com/read/29247513/clinical-efficacy-of-irrigated-catheter-application-of-amiodarone-during-ablation-of-persistent-atrial-fibrillation
#19
Xingfu Huang, Yanjia Chen, Yuli Huang, Hongxin Zhao, Yanyu Chen, Liwei He, Shenrong Liu, Vikram Shee, Dingli Xu, Jian Peng
BACKGROUND: Pharmacological treatment during ablation of persistent atrial fibrillation (AF) is common, but utility of irrigated catheter application of amiodarone during ablation of persistent AF remains unclear. HYPOTHESIS: Irrigated catheter application of amiodarone improves quality of ablation and long-term outcomes. METHODS: We enrolled 90 persistent AF patients who underwent catheter ablation. Patients were randomized to the amiodarone group (n = 45) or control group (n = 45)...
December 16, 2017: Clinical Cardiology
https://www.readbyqxmd.com/read/29245827/fabrication-of-photon-sieves-by-laser-ablation-and-optical-properties
#20
Matthew N Julian, David G MacDonnell, Mool C Gupta
In this work, we demonstrate the feasibility and performance of photon sieve diffractive optical elements fabricated via a direct laser ablation process. Pulses of 50 ns width and wavelength 1064 nm from an ytterbium fiber laser were focused to a spot diameter of approximately 35 µm. Using a galvanometric scan head writing at 100 mm/s, a 30.22 mm2 photon sieve operating at 633 nm wavelength with a focal length of 400 mm was fabricated. The optical performance of the sieve was characterized and is in strong agreement with numerical simulations, producing a focal spot size full-width at half-maximum (FWHM) of 45...
December 11, 2017: Optics Express
keyword
keyword
110777
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"