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cusp ablation

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https://www.readbyqxmd.com/read/29676830/premature-ventricular-contraction-eliminated-by-radiofrequency-catheter-ablation-from-the-pulmonary-sinus-cusp-using-the-ventricular-potentials-in-the-summit-communicating-vein-as-a-guide-for-mapping
#1
Takashi Nakashima, Tomoki Kubota, Nobuhiro Takasugi, Masanori Kawasaki
No abstract text is available yet for this article.
April 20, 2018: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/29486898/magnetocardiographic-classification-and-non-invasive-electro-anatomical-imaging-of-outflow-tract-ventricular-arrhythmias-in-recreational-sport-activity-practitioners
#2
Gianmarco Lombardi, Anna Rita Sorbo, Gianluigi Guida, Lara La Brocca, Riccardo Fenici, Donatella Brisinda
Ventricular arrhythmias (VAs) with left bundle-branch-block and inferior axis morphology (LBBB-IA), suggestive of outflow tract (OT) origin, are a challenge in sports medicine because they can be benign or expression of a silent cardiomyopathy. Non-invasive classification is essential to plan ablation strategy if required. We aimed to evaluating magnetocardiographic (MCG) discrimination of OT-VAs site of origin (SoO). MCG and ECG data of 26 sports activity practitioners, with OT-VAs were analyzed. OT-VAs-SoO was classified with discriminant analysis (DA) of 8 MCG parameters and with invasively-validated ECG algorithms...
February 16, 2018: Journal of Electrocardiology
https://www.readbyqxmd.com/read/29478174/efficacy-of-advanced-pace-mapping-technology-for-idiopathic-premature-ventricular-complexes-ablation
#3
J Fedida, T Strisciuglio, M Sohal, M Wolf, K Van Beeumen, A Neyrinck, P Taghji, C Lepiece, A Almorad, Y Vandekerckhove, R Tavernier, M Duytschaever, S Knecht
PURPOSE: Catheter ablation is an effective treatment for premature ventricular complexes (PVCs). Activation mapping is accurate but requires PVCs at the time of the ablation. Pace-mapping correlation (PMC) is a supplemental tool recently developed as an integrated module for an electro-anatomical mapping platform. Our study sought to investigate whether pace-mapping technology provides similar ablation results in patients with low versus high idiopathic PVC burden at the time of ablation and the relationship between sites with the highest PMC and the earliest local activation time (LAT)...
February 24, 2018: Journal of Interventional Cardiac Electrophysiology: An International Journal of Arrhythmias and Pacing
https://www.readbyqxmd.com/read/29446182/catheter-ablation-of-ventricular-arrhythmias-with-qrs-morphology-resembling-that-of-aortic-sinus-cusp-arrhythmias-significance-of-mapping-the-left-pulmonary-sinus-cusp
#4
Zhuo Liang, Wang Yunlong, Tao Zhang, Zhihong Han, Jianzeng Dong, Xuejun Ren
BACKGROUND: There is a close anatomical relationship between aortic sinus cusp (ASC) and the left pulmonary sinus cusp (LPSC). PURPOSE: The study was to investigate the significance of mapping and ablation of LPSC for VAs with QRS morphology resembling that of ASC arrhythmias. METHODS: In 33 consecutive patients undergoing successful catheter ablation of idiopathic VAs with ASC arrhythmia-like QRS morphology, LPSC was mapped carefully. RESULTS: Among the 33 patients studied, QRS morphology resembled that of arrhythmias of either right or left coronary cusp (LCC or RCC) origin in 17 and 16 patients, respectively...
February 15, 2018: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/29383491/catheter-ablation-of-symptomatic-idiopathic-ventricular-arrhythmias-a%C3%A2-five-year-single-centre-experience
#5
A W G J Oomen, L R C Dekker, A Meijer
AIMS: This study was designed to gain insight into the patient characteristics, results and possible complications of ablation procedures for symptomatic idiopathic premature ventricular complexes (PVC) and idiopathic ventricular tachycardia (VT). METHODS: Data were collected from all patients who underwent radiofrequency catheter ablation for symptomatic PVCs and idiopathic VT in the Catharina Hospital between 1 January 2011 and 31 December 2015. The procedural endpoint was elimination or non-inducibility of the clinical arrhythmia...
January 30, 2018: Netherlands Heart Journal
https://www.readbyqxmd.com/read/29326128/idiopathic-ventricular-arrhythmias-originating-from-the-vicinity-of-the-communicating-vein-of-cardiac-venous-systems-at-the-left-ventricular-summit
#6
Yuki Komatsu, Akihiko Nogami, Yasutoshi Shinoda, Keita Masuda, Takeshi Machino, Kenji Kuroki, Hiro Yamasaki, Yukio Sekiguchi, Kazutaka Aonuma
BACKGROUND: The communicating vein (CV) between the great cardiac vein and small cardiac venous systems passes between the aortic and pulmonary annulus and is located in close association with the left ventricular summit (summit CV). METHODS AND RESULTS: Thirty-one patients with idiopathic ventricular arrhythmias (VAs) underwent mapping of the left ventricular summit by using a 2F microcatheter introduced into the summit CV with coronary sinus venographic guidance...
January 2018: Circulation. Arrhythmia and Electrophysiology
https://www.readbyqxmd.com/read/29310391/catheter-ablation-of-premature-ventricular-contractions-originating-from-aortic-sinus-cusps-in-a-patient-with-dextrocardia-and-situs-solitus-a-case-report
#7
Chao-Feng Chen, Xiao-Hua Liu, Xiao-Fei Gao, Bin Chen, Yi-Zhou Xu
BACKGROUND: Premature ventricular contractions (PVCs) originating from aortic sinus cusps is not infrequent and can be eliminated effectively by radiofrequency ablation with rare complications. However, after a review of the medical literature, and to our knowledge, this is the first case of successful idiopathic aortic sinus cusps-PVC-ablation using a 3-dimensional (3D) mapping system in an adult with dextrocardia. METHODS: A 62-year-old male with dextrocardia and situs inversus underwent catheter ablation of frequent PVCs...
December 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29279816/when-ablation-is-not-the-answer-acute-left-main-thrombosis-causing-incessant-ventricular-tachycardia-following-left-ventricular-assist-device-implant
#8
Mohammad K Mojadidi, Ahmed N Mahmoud, Akram Y Elgendy, R David Anderson
Ventricular arrhythmia from aortic cusp thrombosis and coronary embolization is a rare complication of left ventricular assist device (LVAD) implantation. In this report, we present a case of acute left main and left anterior descending artery occlusion from embolic aortic cusp thrombi after LVAD implant. The patient presented with chest pain and incessant ventricular tachycardia post-LVAD implant. This was successfully treated by intracoronary thrombolysis, aspiration thrombectomy, and rheolytic thrombectomy...
October 21, 2017: Curēus
https://www.readbyqxmd.com/read/29277686/accurate-localization-and-catheter-ablation-of-superoparaseptal-accessory-pathways
#9
Qiang Liu, Michael Shehata, David Z Lan, Ashkan Ehdaie, Eugenio Cingolani, Sumeet S Chugh, Guosheng Fu, Chenyang Jiang, Xunzhang Wang
BACKGROUND: There remains some confusion delineating the accurate location and the detailed anatomical relationship between atrioventricular accessory pathways (APs) located in the superoparaseptal region. OBJECTIVE: The purpose of this article was to detail the anatomical relationship and accurate location of APs located in the superoparaseptal region. METHODS: Between May 2009 and November 2016, 11 patients with superoparaseptal APs (SPS-APs) were identified in 129 consecutive patients who underwent catheter ablation for APs in our center...
December 24, 2017: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/29251755/zero-fluoroscopy-catheter-ablation-of-symptomatic-pre-excitation-from-non-coronary-cusp-during-pregnancy
#10
Dariusz Karbarz, Piotr J Stec, Karol Deutsch, Janusz Śledź, Sebastian Stec
No abstract text is available yet for this article.
2017: Kardiologia Polska
https://www.readbyqxmd.com/read/29202532/-premature-outflow-tract-ventricular-contraction-combined-with-complete-bundle-branch-block-the-characteristic-electrocardiographic-and-ablation-target-potential-features
#11
C Y Di, Z Wan, K Li, Y S Ding, W H Lin
Objective: To explore the characteristics of electrocardiogram(ECG) and target potential features of premature ventricular contraction (PVC) in patients with complete left/right bundle branch block (CL/RBBB) and compare with those without CL/RBBB. Methods: A retrospective analysis was done in 8 outflow tract PVC patients with CL/RBBB, who successfully underwent radiofrequency ablation from August 2009 to June 2017. According to the bundle branch block chamber, patients were divided into the complete right bundle branch block (CRBBB) group ( n= 4) and the complete left bundle branch block (CLBBB) group ( n= 4)...
December 1, 2017: Zhonghua Nei Ke za Zhi [Chinese Journal of Internal Medicine]
https://www.readbyqxmd.com/read/28917557/idiopathic-ventricular-arrhythmias-originating-from-the-right-coronary-sinus-prevalence-electrocardiographic-and-electrophysiological-characteristics-and-catheter-ablation
#12
Yunlong Wang, Zhuo Liang, Shaoqin Wu, Zhihong Han, Xuejun Ren
BACKGROUND: Ventricular arrhythmias (VAs) of the right coronary cusp (RCC) are not fully characterized. OBJECTIVES: To investigate the electrocardiographic and electrophysiological characteristics, mapping and ablation of RCC-VAs. METHODS: Among 256 consecutive patients undergoing electrophysiological evaluation and ablation of VAs of ventricular outflow tract origin, data were compared among 27 RCC-VAs, 50 VAs of the septal aspect of right ventricular outflow tract (RVOT), including from pulmonary artery, and 9 VAs of left coronary cusp (LCC)...
January 2018: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/28800949/pulmonary-sinus-cusp-mapping-and-ablation-a-new-concept-and-approach-for-idiopathic-right-ventricular-outflow-tract-arrhythmias
#13
Jinlin Zhang, Cheng Tang, Yonghua Zhang, Xi Su
BACKGROUND: Right ventricular outflow tract (RVOT) ventricular arrhythmias (VAs) may originate from the pulmonary sinus cusps (PSCs) far more frequently than previously recognized. OBJECTIVE: The purpose of this study was to assess whether mapping and ablation in PSCs might be an appropriate first-choice treatment in unselected patients with idiopathic RVOT VAs. METHODS: Ninety consecutive patients with VAs of RVOT-type origin were prospectively enrolled at our institution between August 2015 and September 2016...
January 2018: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/28732182/stim1-regulates-enamel-mineralization-and-ameloblast-modulation
#14
Y Furukawa, N Haruyama, M Nikaido, M Nakanishi, N Ryu, M Oh-Hora, K Kuremoto, K Yoshizaki, Y Takano, I Takahashi
Loss-of-function mutations in the Ca(2+) release-activated Ca(2+) channel genes ORAI1 and STIM1 abolish store-operated Ca(2+) entry (SOCE) and result in ectodermal dysplasia with amelogenesis imperfecta. However, because of the limited availability of patient tissue, analyses of enamel mineralization or possible changes in ameloblast function or morphology have not been possible. Here, we generated mice with ectodermal tissue-specific deletion of Stim1 ( Stim1 cKO [conditional knockout]), Stim2 ( Stim2 cKO), and Stim1 and Stim2 ( Stim1/2 cKO) and analyzed their enamel phenotypes as compared with those of control ( Stim1/2(fl/fl)) animals...
November 2017: Journal of Dental Research
https://www.readbyqxmd.com/read/28635147/life-threatening-aortic-dissection-with-cardiac-tamponade-during-catheter-ablation-for-ventricular-tachycardia-originating-from-left-coronary-cusp
#15
Kenji Kuroki, Akira Sato, Fumi Yamagami, Akihiko Nogami, Kazutaka Aonuma
No abstract text is available yet for this article.
October 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28630170/characterization-of-aortic-valve-closure-artifact-during-outflow-tract-mapping-correlation-with-hemodynamics-and-mechanical-valves
#16
Jorge Romero, Olujimi Ajijola, Kalyanam Shivkumar, Roderick Tung
BACKGROUND: Premature ventricular contractions originating in the left ventricle outflow tract represent a significant subgroup of patients referred for catheter ablation. Mechanical artifacts from aortic valve leaflet motion may be observed during mapping, although the incidence and characteristics have not been reported. METHODS AND RESULTS: Twenty-eight consecutive patients with left ventricle outflow tract premature ventricular contraction were included. Electric signals recorded on the ablation catheter not coincident with atrial or ventricular depolarization were analyzed on the recording system...
June 2017: Circulation. Arrhythmia and Electrophysiology
https://www.readbyqxmd.com/read/28588014/different-approaches-for-catheter-ablation-of-para-hisian-accessory-pathways-implications-for-mapping-and-ablation
#17
Ming Liang, Zulu Wang, Yanchun Liang, Guitang Yang, Zhiqing Jin, Mingyu Sun, Yaling Han
BACKGROUND: Catheter ablation of para-Hisian accessory pathways (APs) can be challenging because of adjacent conduction tissue. Some different approaches for ablation, including the inferior vena cava approach (IVC-A), the noncoronary cusp approach (NCC-A), or the superior vena cava approach (SVC-A), have been reported. However, when should para-Hisian APs be mapped and ablated by the IVC-A, NCC-A, or SVC-A is not well established. METHODS AND RESULTS: This study included 55 consecutive patients (mean age, 53±11 years, 36 males) with para-Hisian APs...
June 2017: Circulation. Arrhythmia and Electrophysiology
https://www.readbyqxmd.com/read/28568013/a-multicenter-review-of-ablation-in-the-aortic-cusps-in-young-people
#18
Minh B Nguyen, Scott R Ceresnak, Christopher M Janson, Steven B Fishberger, Barry A Love, Andrew D Blaufox, Kara S Motonaga, Anne M Dubin, Lynn Nappo, Robert H Pass
BACKGROUND: Ablation within the aortic cusp is safe and effective in adults. There are little data on aortic cusp ablation in the pediatric literature. We investigated the safety and efficacy of aortic cusp ablation in young patients. METHODS: A retrospective, descriptive study of aortic cusp ablation in five pediatric electrophysiology centers from 2008 to 2014 was performed. All patients <21 years of age who underwent ablation in the aortic cusps were included...
June 1, 2017: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/28506214/origins-location-of-the-outflow-tract-ventricular-arrhythmias-exhibiting-qrs-pattern-or-qs-pattern-with-a-notch-on-the-descending-limb-in-lead-v1
#19
Cong Lin, Cheng Zheng, De-Pu Zhou, Xiao-Wei Li, Shu-Jie Wu, Jia-Feng Lin
BACKGROUND: Ventricular outflow tract(VOT) ventricular arrhythmias(VAs) presenting qrS pattern or QS pattern with a notch on the descending limb in lead V1 were consistently thought of arising from the commissure between left and right coronary cusp (L-RCC) by previous studies. However, we found they could originate from other anatomic structures in VOT. This study aimed to investigate the exact origin of this kind VAs. METHODS: Forty-nine patients of VOT premature ventricular contrations/ventricular tachycardia(PVCs/VT) with lead V1 presenting qrS pattern or QS pattern with a notch on the descending limb undergoing successful radiofrequency catheter ablation(RFCA) in our center were analyzed...
May 15, 2017: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/28500177/efficacy-of-an-anatomical-approach-in-radiofrequency-catheter-ablation-of-idiopathic-ventricular-arrhythmias-originating-from-the-left-ventricular-outflow-tract
#20
Takumi Yamada, Naoki Yoshida, Harish Doppalapudi, Silvio H Litovsky, H Thomas McElderry, G Neal Kay
BACKGROUND: When anatomic obstacles preclude radiofrequency catheter ablation of idiopathic ventricular arrhythmias (VAs) originating from the left ventricular outflow tract (LVOT), an alternative approach from the anatomically opposite side (endocardial versus epicardial or above versus below the aortic valve) may be considered (anatomic ablation). The purpose of this study was to investigate the efficacy of an anatomic ablation in idiopathic LVOT VAs. METHODS AND RESULTS: We studied 229 consecutive patients with idiopathic LVOT VAs...
May 2017: Circulation. Arrhythmia and Electrophysiology
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