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Non sustained ventricular tachycardia

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https://www.readbyqxmd.com/read/27890880/myopericarditis-in-a-case-of-anti-signal-recognition-particle-anti-srp-antibody-positive-myopathy
#1
Mariko Tanaka, Naoki Gamou, Hirohiko Shizukawa, Emiko Tsuda, Shun Shimohama
A 79 year-old female was admitted to our hospital because of high serum creatine kinase level together with proximal muscle weakness and pain on grasping. MRI revealed inflammatory changes in femoral muscles on both sides. Muscle biopsy showed size irregularity of muscle cells, and necrosis and regeneration of fibers. Study of antibodies was also consistent with the diagnostic criteria of anti-signal recognition particle (anti-SRP) antibody-positive myopathy. On admission, the patient required pericardiocentesis for the management of exudative pericarditis...
November 25, 2016: Rinshō Shinkeigaku, Clinical Neurology
https://www.readbyqxmd.com/read/27878125/increased-likelihood-of-arrhythmic-events-associated-with-increased-anxiety-in-patients-with-implanted-cardiac-defibrillators-after-the-ahar-varzegan-earthquake-in-east-azarbaijan-2012
#2
Fatemeh Ranjbar, Fariborz Akbarzadeh, Babak Kazemi, Abdolmohammad Ranjbar, Sonia Sharifi Namin, Homayoun Sadeghi-Bazargani
OBJECTIVE: To determine the type and pattern of arrhythmic events following the 2012 Ahar-Varzegan Earthquake among patients implanted with cardiac defibrillators (ICDs) in East Azarbaijan province. METHODS: In a prospective cohort study, conducted in East Azerbaijan Province of Iran, 132 patients were enrolled in two comparison groups according to the region of residence i.e., earthquake region (n= 98) and non-earthquake (n= 34) region in 2012. Data were collected for those meeting standard criteria for sustained ventricular arrhythmias (VAs), or supraventricular tachycardias (SVTs) and triggered ICD therapies, either shock or anti-tachycardia pacing (ATP)...
October 2016: Bulletin of Emergency and Trauma
https://www.readbyqxmd.com/read/27875987/biomarkers-of-cardiovascular-injury-and-stress-are-associated-with-increased-frequency-of-ventricular-ectopy-a-population-based-study
#3
Julia Brox Skranes, Gunnar Einvik, Silje Kjeka Namtvedt, Anna Randby, Harald Hrubos-Strøm, Jon Brynildsen, Tor-Arne Hagve, Virend K Somers, Helge Røsjø, Torbjørn Omland
BACKGROUND: Asymptomatic ventricular arrhythmias are common and associated with increased risk of cardiovascular mortality. Cardiac troponins, natriuretic peptides and C-reactive protein (CRP) are also predictive of adverse cardiovascular events in the general population, but limited information is available on the relationship between these biomarkers and ventricular ectopy in a community-based population. The objectives were to evaluate the associations between ventricular ectopic activity and N-terminal pro-B-type natriuretic peptide (NT-proBNP), high sensitivity-troponin I (hs-TnI) and hs-CRP in a community-based setting...
November 22, 2016: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/27860063/a-comparison-of-women-and-men-undergoing-catheter-ablation-for-sustained-monomorphic-ventricular-tachycardia
#4
Samuel H Baldinger, Saurabh Kumar, Jorge Romero, Akira Fujii, Laurence M Epstein, Gregory F Michaud, Roy John, Usha B Tedrow, William G Stevenson
INTRODUCTION: Women are underrepresented in clinical studies on catheter ablation (CA) for ventricular tachycardia (VT). The role of gender as a predictor for VT recurrence after CA is unclear and complication rates have not been compared in a large cohort. METHODS AND RESULTS: We analyzed data of consecutive patients undergoing CA for sustained monomorphic VT at our center between 2005 and 2015. A total of 948 patients underwent 1314 ablation procedures: 114 patients without SHD (48% female), 486 with coronary artery disease (CAD) (9% female), 301 with non-ischemic cardiomyopathy (NICM) (22% female), and 46 with arrhythmogenic right ventricular cardiomyopathy (ARVC) (17% female)...
November 18, 2016: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/27836373/clinical-significance-of-platelet-reactivity-during-prasugrel-therapy-in-patients-with-acute-myocardial-infarction
#5
Tetsuya Sato, Yusuke Namba, Yuya Kashihara, Masamichi Tanaka, Soichiro Fuke, Akihisa Yumoto, Hironori Saito
BACKGROUND: Although some studies have examined platelet reactivity (PR) during prasugrel treatment, little is known about PR during the early treatment period and its clinical significance in Japan. METHODS: We investigated the early and medium-term efficacy and safety of prasugrel in patients with acute myocardial infarction (AMI) undergoing primary percutaneous coronary intervention (PCI). Seventy-eight patients were enrolled and PR was measured (in P2Y12 reaction units; PRU) by the VerifyNow P2Y12 assay (Accumetrics, San Diego, CA, USA)...
November 8, 2016: Journal of Cardiology
https://www.readbyqxmd.com/read/27813212/insights-into-mildly-dilated-cardiomyopathy-temporal-evolution-and-long-term-prognosis
#6
Marta Gigli, Davide Stolfo, Marco Merlo, Giulia Barbati, Federica Ramani, Francesca Brun, Bruno Pinamonti, Gianfranco Sinagra
AIMS: Mildly dilated cardiomyopathy (MDCM) has been proposed as a subtype of dilated cardiomyopathy (DCM) characterized by systolic dysfunction in the absence of significant LV dilatation. Few data on the characteristics and outcomes of MDCM patients are available. We sought to assess the main features and the long-term natural history of MDCM. METHODS AND RESULTS: From 1988 to 2010 we analysed all DCM patients consecutively evaluated at our Institution. MDCM was defined as LVEF <45% and LV end-diastolic volume index (LVEDVI) ≤70 mL/m(2) in women and ≤89 mL/m(2) in men...
November 4, 2016: European Journal of Heart Failure
https://www.readbyqxmd.com/read/27781325/beyond-the-storm-comparison-of-clinical-factors-arrhythmogenic-substrate-and-catheter-ablation-outcomes-in-structural-heart-disease-patients-with-versus-those-without-a-history-of-ventricular-tachycardia-storm
#7
Saurabh Kumar, Akira Fujii, Sunil Kapur, Jorge Romero, Nishaki K Mehta, Shinichi Tanigawa, Laurence M Epstein, Bruce A Koplan, Gregory F Michaud, Roy M John, William G Stevenson, Usha B Tedrow
AIMS: Catheter ablation can be lifesaving in ventricular tachycardia (VT) storm, but the underlying substrate in patients with storm is not well characterized. We sought to compare the clinical factors, substrate and outcomes differences in patients with sustained monomorphic VT who present for catheter ablation with VT storm versus those with a non-storm presentation. METHODS: Consecutive ischemic (ICM; n = 554) or non-ischemic cardiomyopathy patients (NICM; n = 369) with a storm vs...
October 26, 2016: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/27752746/clinical-values-of-left-ventricular-mechanical-dyssynchrony-assessment-by-gated-myocardial-perfusion-spect-in-patients-with-acute-myocardial-infarction-and-multivessel-disease
#8
Sang-Geon Cho, Zeenat Jabin, Ki Seong Park, Jahae Kim, Sae-Ryung Kang, Seong Young Kwon, Geum-Cheol Jeong, Minchul Song, Jong Sang Kim, Jae Yeong Cho, Hyun Kuk Kim, Ho-Chun Song, Jung-Joon Min, Hee-Seung Bom
PURPOSE: The aim of this study was to evaluate the prognostic value of additional evaluation of left ventricular mechanical dyssynchrony (LVMD) by gated myocardial perfusion single-photon emission computed tomography (GMPS) in patients with acute myocardial infarction (MI) and multivessel disease. METHODS: One hundred and nine acute MI patients with >50 % stenosis in at least one non-culprit artery who underwent GMPS within 2 weeks were enrolled. All patients underwent successful revascularization of the culprit arteries...
October 18, 2016: European Journal of Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/27734459/characteristics-of-chaotic-processes-in-electrocardiographically-identified-ventricular-arrhythmia
#9
Andrzej Mysiak, Małgorzata Kobusiak-Prokopowicz, Konrad Kaaz, Kamila Jarczewska, Wojciech Glabisz
BACKGROUND: The theory of chaos proves a deterministic mechanism of induction of multiple complex processes previously thought to be random in nature. This research explains how these complex processes develop. The aim of the study was to test the hypothesis of the chaotic nature of myocardial electrical events during ventricular tachycardia (VT) and ventricular fibrillation (VF). METHODS: Original hardware and software was developed for digitalization of on-line electrocardiography (ECG) data, with the functions of automatic and manual identification as well as categorization of specific ventricular arrhythmias...
October 13, 2016: Cardiology Journal
https://www.readbyqxmd.com/read/27733459/catheter-ablation-for-ventricular-tachycardia-following-surgical-treatment-of-pulmonary-stenosis-with-intact-ventricular-septum
#10
Bingbo Hou, Lihui Zheng, Guodong Niu, Lingmin Wu, Yu Qiao, Wei Sun, Ligang Ding, Gang Chen, Shu Zhang, Reginald Liew, Yan Yao
AIMS: This study was aimed to report the characteristics and treatment of ventricular tachycardia (VT) following surgical treatment of pulmonary stenosis with intact ventricular septum. METHODS AND RESULTS: Five patients underwent radiofrequency catheter ablation for sustained monomorphic left bundle branch block (LBBB) type VT who previously underwent surgical treatment of pulmonary stenosis. Except stimulation, voltage and activation mapping was performed using three-dimensional (3D) electro-anatomic mapping and ablation was applied accordingly...
October 12, 2016: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/27679836/comparison-of-hypertrophic-cardiomyopathy-in-afro-caribbean-versus-white-patients-in-the-uk
#11
Nabeel Sheikh, Michael Papadakis, Vasileios F Panoulas, Keerthi Prakash, Lynne Millar, Paolo Adami, Abbas Zaidi, Sabiha Gati, Mathew Wilson, Gerald Carr-White, Maria Teresa Esteban Tomé, Elijah R Behr, Sanjay Sharma
BACKGROUND: This study investigated the influence of African/Afro-Caribbean (black) ethnicity on the clinical profile and outcomes in hypertrophic cardiomyopathy (HCM). METHODS: 425 consecutive patients with HCM (163 black and 262 Caucasians (white); mean age 52.5±16.6 years) were assessed at three cardiomyopathy centres. Repeat assessments were performed every 6-12 months and mean follow-up was 4.3±3.0 years. The primary outcome was a composite of cardiovascular death, cardiac arrest or appropriate device therapy...
September 27, 2016: Heart: Official Journal of the British Cardiac Society
https://www.readbyqxmd.com/read/27670128/percutaneous-pulmonary-valve-implantation-associated-ventricular-tachycardia-in-congenital-heart-disease
#12
Robert W Loar, Athar M Qureshi, Christina Y Miyake, Santiago O Valdes, Jeffrey J Kim, Caridad M De la Uz
BACKGROUND: Percutaneous pulmonary valve implantation (PPVI) is utilized for dysfunctional right ventricular outflow tracts (RVOT) to relieve obstruction, regurgitation, and RV dysfunction. PPVI has not been reported to induce arrhythmias. This study is the first to report the incidence of ventricular tachycardia (VT) after PPVI. METHODS: This was a retrospective study of all patients who had PPVI at a single institution. All patients were admitted after PPVI for overnight telemetry monitoring...
December 2016: Journal of Interventional Cardiology
https://www.readbyqxmd.com/read/27651061/ecg-imaging-of-ventricular-tachycardia-evaluation-against-simultaneous-non-contact-mapping-and-cmr-derived-grey-zone
#13
Walther H W Schulze, Zhong Chen, Jatin Relan, Danila Potyagaylo, Martin W Krueger, Rashed Karim, Manav Sohal, Anoop Shetty, YingLiang Ma, Nicholas Ayache, Maxime Sermesant, Herve Delingette, Julian Bostock, Reza Razavi, Kawal S Rhode, Christopher A Rinaldi, Olaf Dössel
ECG imaging is an emerging technology for the reconstruction of cardiac electric activity from non-invasively measured body surface potential maps. In this case report, we present the first evaluation of transmurally imaged activation times against endocardially reconstructed isochrones for a case of sustained monomorphic ventricular tachycardia (VT). Computer models of the thorax and whole heart were produced from MR images. A recently published approach was applied to facilitate electrode localization in the catheter laboratory, which allows for the acquisition of body surface potential maps while performing non-contact mapping for the reconstruction of local activation times...
September 20, 2016: Medical & Biological Engineering & Computing
https://www.readbyqxmd.com/read/27566663/indications-and-use-of-the-wearable-cardiac-defibrillator
#14
Parikshit S Sharma, Pierre Bordachar, Kenneth A Ellenbogen
The implantable cardiac defibrillator (ICD) has been an effective tool for prevention of sudden cardiac death (SCD) in populations at high risk for life-threatening sustained ventricular tachycardia (VT) and ventricular fibrillation (VF). However, ICD implantation is dependent on defining ventricular substrate, evaluating the future risk of SCD and estimation of the patient's overall survival. The ability to predict risk of SCD is often difficult. If ventricular dysfunction (a surrogate marker for the risk of SCD) improves, ICD therapy may not be indicated...
August 25, 2016: European Heart Journal
https://www.readbyqxmd.com/read/27565970/dofetilide-in-overdose-a-case-series-from-poison-center-data
#15
M A Hieger, K F Maskell, M J Moss, S W Powell, K L Cumpston
Dofetilide is a class III antiarrhythmic used for treating atrial dysrhythmias. Though its adverse effects are well described in routine use, very little is known about dofetilide toxicity in overdose. This is a retrospective case series of consecutive patients reported to our poison center after dofetilide overdose. Twenty-seven cases were included. Seventeen patients were treated at a healthcare facility, and of these, eight were admitted. Twenty-one patients took one extra capsule, four took someone else's medication, one took three extra capsules, and one had a large intentional overdose...
August 26, 2016: Cardiovascular Toxicology
https://www.readbyqxmd.com/read/27548469/long-term-outcome-of-non-sustained-ventricular-tachycardia-in-structurally-normal-hearts
#16
Chin-Yu Lin, Shih-Lin Chang, Fa-Po Chung, Yun-Yu Chen, Yenn-Jiang Lin, Li-Wei Lo, Yu-Feng Hu, Ta-Chuan Tuan, Tze-Fan Chao, Jo-Nan Liao, Yao-Ting Chang, Chung-Hsing Lin, Suresh Allamsetty, Rohit Walia, Abigail Louise D Te, Shinya Yamada, Shuo-Ju Chiang, Hsuan-Ming Tsao, Shih-Ann Chen
BACKGROUND: The impact of non-sustained ventricular tachycardia (NSVT) on the risk of thromboembolic event and clinical outcomes in patients without structural heart disease remains undetermined. This study aimed to evaluate the association between NSVT and clinical outcomes. METHODS: The study population of 5903 patients was culled from the "Registry of 24-hour ECG monitoring at Taipei Veterans General Hospital" (REMOTE database) between January 1, 2002 and December 31, 2004...
2016: PloS One
https://www.readbyqxmd.com/read/27521538/can-ventricular-tachycardia-non-inducibility-after-ablation-predict-reduced-ventricular-tachycardia-recurrence-and-mortality-in-patients-with-non-ischemic-cardiomyopathy-a-meta-analysis-of-twenty-four-observational-studies
#17
Jinzhu Hu, Shan Zeng, Qiongqiong Zhou, Wengen Zhu, Zhenyan Xu, Jianhua Yu, Kui Hong
BACKGROUND: At present, the role of ventricular tachycardia (VT) non-inducibility after ablation in patients with non-ischemic cardiomyopathy (NICM) remains controversial. We conducted a meta-analysis of the published literature to assess whether VT non-inducibility after ablation could predict reduced VT recurrence and mortality in patients with NICM. METHODS: PubMed, ScienceDirect, and the Cochrane library were searched for studies evaluating the effects of VT non-inducibility after catheter ablation on the long-term outcome in NICM patients with sustained VT...
November 1, 2016: International Journal of Cardiology
https://www.readbyqxmd.com/read/27493760/sudden-cardiac-death-in-adults-with-congenitally-corrected-transposition-of-the-great-arteries
#18
A McCombe, F Touma, D Jackson, C Canniffe, P Choudhary, L Pressley, D Tanous, Peter J Robinson, D Celermajer
BACKGROUND: Congenitally corrected transposition of the great arteries (ccTGA) is a rare congenital heart disease. There have been only few reports of sudden cardiac death (SCD) in patients with ccTGA and reasonable ventricular function. METHODS: A retrospective review of the medical records of all patients attending our adult congenital heart centre, with known ccTGA. RESULTS: From a database of over 3500 adult patients with congenital heart disease, we identified 39 (∼1%) with ccTGA and 'two-ventricle' circulations...
2016: Open Heart
https://www.readbyqxmd.com/read/27476098/value-of-genetic-testing-for-the-prediction-of-long-term-outcome-in-patients-with-hypertrophic-cardiomyopathy
#19
Hannah G van Velzen, Pieter A Vriesendorp, Rogier A Oldenburg, Marjon A van Slegtenhorst, Jolanda van der Velden, Arend F L Schinkel, Michelle Michels
Pathogenic gene mutations are found in about 50% of patients with hypertrophic cardiomyopathy (HC). Previous studies have shown an association between sarcomere mutations and medium-term outcome. The association with long-term outcome has not been described. The aim of this cohort study was to assess the long-term outcomes of patients with genotype positive (G+) and genotype negative (G-) HC. The study population consisted of 626 patients with HC (512 probands and 114 relatives) who underwent phenotyping and genetic testing from 1985 to 2014...
September 15, 2016: American Journal of Cardiology
https://www.readbyqxmd.com/read/27458824/pattern-of-late-gadolinium-enhancement-predicts-arrhythmic-events-in-patients-with-non-ischemic-cardiomyopathy
#20
Dong Geum Shin, Hye-Jeong Lee, Junbeom Park, Jae-Sun Uhm, Hui-Nam Pak, Moon-Hyoung Lee, Young Jin Kim, Boyoung Joung
BACKGROUND: Left ventricular late gadolinium enhancement (LV-LGE) by cardiac magnetic resonance (CMR) imaging has been associated with adverse clinical outcomes in patients with non-ischemic cardiomyopathy (NICM). However, an association between the characteristics of the LGE and arrhythmic risk has not been demonstrated consistently. This study evaluated the impact of the LV-LGE characteristics on the arrhythmia risk in patients with NICM. METHODS: This study enrolled 365 consecutive patients (54±15years) with NICM who underwent CMR imaging...
November 1, 2016: International Journal of Cardiology
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