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https://www.readbyqxmd.com/read/29145303/epicardial-radiofrequency-catheter-ablation-of-brugada-syndrome-with-electrical-storm-during-ventricular-fibrillation-a-case-report
#1
Shufen Jiang, Xiaomeng Yin, Chang Dong, Yunlong Xia, Jinqiu Liu
RATIONALE: Brugada syndrome (BrS) is characterized by ST segment elevation at the J point ≥2 mm in the right precordial electrocardiogram (ECG) leads, in the absence of structural heart disease, electrolyte disturbances, or ischemia. It is a well-described cause of sudden death in young patients, especially in the age of between 30 and 40 years old. Here, we reported an unusual case of electrical storm (ES) of ventricular fibrillation (VF) caused by BrS with complete right bundle-branch block (CRBBB) in a 75-year-old male patient...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29138649/-clinical-and-electrocardiographic-aspect-of-pulmonary-embolism-masking-aortic-dissection-revealed-by-thoracic-ct-angiography
#2
Daniella Rakotoniaina Masinarivo, Jenny Larissa Rakotomanana
We here report the case of a 52-year old hypertensive, obese woman (BMI 32,46 kg/m(2)) with a past history of smoking and without evidence-based risk factors of venous thromboembolism, hospitalized for left chest pain radiating to the dorsolumbar region associated with dyspnoea. Clinical examination on hopitalization showed left blood pressure 100/60 mmHg, tachycardia 100/min, oxygen desaturation index at 88% with the patient breathing ambient air, normal cardiopulmonary auscultation, peripheral pulses palpable and no symptoms of phlebitis of the lower limbs...
2017: Pan African Medical Journal
https://www.readbyqxmd.com/read/29132651/wide-qrs-complex-tachycardia
#3
Elias B Hanna, Colleen J Johnson, D Luke Glancy
In a man with a wide-QRS complex tachycardia, a history of an inferior left ventricular scar, atrioventricular dissociation during the tachycardia, and a QRS morphology inconsistent with right or left bundle branch block exclude a diagnosis of supraventricular tachycardia with aberrant ventricular conduction due to bundle branch block or ventricular preexcitation and establish a diagnosis of ventricular tachycardia.
October 19, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/29121757/association-between-qrs-duration-on-prehospital-ecg-and-mortality-in-patients-with-suspected-stemi
#4
Rikke Hansen, Martin Frydland, Ole Kristian Møller-Helgestad, Matias Greve Lindholm, Lisette Okkels Jensen, Lene Holmvang, Hanne Berg Ravn, Jesper Kjærgaard, Christian Hassager, Jacob Eifer Møller
BACKGROUND: QRS duration has previously shown association with mortality in patients with acute myocardial infarction treated with thrombolytics, less is known in patients with suspected ST segment elevation myocardial infarction (STEMI) when assessing QRS duration on prehospital ECG. Thus, the objective was to investigate the prognostic effect of QRS duration on prehospital ECG and presence of classic left and right bundle branch block (LBBB/RBBB) for all-cause mortality in patients with suspected STEMI...
December 15, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/29119214/safety-and-efficacy-of-radiofrequency-catheter-ablation-for-tachyarrhythmia-in-children-weighing-less-than-10%C3%A2-kg
#5
Noriyasu Ozaki, Yoshihide Nakamura, Tsugutoshi Suzuki, Jun Yoshimoto, Keiko Toyohara, Hitoo Fukuhara, Hiroshi Katayama, Kanta Kishi, Yutaka Odanaka, Hiroshi Tamai
An increasing number of children are undergoing radiofrequency catheter ablation (RFCA) for tachyarrhythmia. However, infants and toddlers undergoing RFCA are often resistant to medication or need to eliminate arrhythmia substrate, and the risks of RFCA complications are still high in infants and toddlers. From April 2008 and December 2016, 285 children who underwent radiofrequency catheter ablation (RFCA) were stratified according to body weight (group A, less than 10 kg, n = 22; group B, over 10 kg, n = 263) and the clinical features of RFCA were retrospectively reviewed in these groups...
November 8, 2017: Pediatric Cardiology
https://www.readbyqxmd.com/read/29113751/cardiomyopathy-induced-by-incessant-ventricular-tachycardia-originating-in-the-vicinity-of-the-his-bundle
#6
Sana Ouali, Manel Ben Halima, Selim Boudiche, Anissa Gharbi, Khedher Nadim, Kaouthar Hakim, Fatma Ouarda, Mohamed Sami Mourali
A 04-year-old boy was referred to our institution with severe, progressive heart failure of 4-months duration associated with a persistent wide QRS tachycardia with left bundle branch block and severe left ventricular dysfunction. Because of incessant wide QRS tachycardia refractory to antiarrhythmic drugs, he was referred for electrophysiological study. The ECG was suggestive of VT arising from the right ventricle near the His area. Electrophysiological study revealed that origin of tachycardia was septum of the right ventricle, near His bundle, however the procedure was not successful and an inadvertent complete atrioventricular conduction block occurred...
November 4, 2017: Indian Pacing and Electrophysiology Journal
https://www.readbyqxmd.com/read/29113701/electrocardiographic-patterns-in-biventricular-pacing-delivered-by-second-generation-cardiac-resynchronization-devices
#7
Amirfarjam Fazelifar, Fatemeh Jorfi, Majid Haghjoo
BACKGROUND: With increasing use of cardiac resynchronization therapy (CRT), treating physicians should be familiar with different electrocardiographic (ECG) patterns of left ventricular (LV) lead and biventricular (BiV) pacing. However, there are a few publications on ECG patterns during BiV pacing. PURPOSE: This study was sought to determine different ECG patterns in patients with BiV pacing. METHODS: Twelve-lead ECGs during BiV pacing (right ventricular leads at apex and LV leads in one of the lateral coronary veins) were analyzed in 181 consecutive patients (121 male; mean age, 62...
November 4, 2017: Indian Pacing and Electrophysiology Journal
https://www.readbyqxmd.com/read/29082523/ventricular-mechanics-after-repair-of-subarterial-and-perimembranous-vsds
#8
Sit-Yee Kwok, Susanna So-Shan Yeung, Vivian Wing-Yi Li, Yiu-Fai Cheung
BACKGROUND: Emerging data suggest impaired biventricular function in adults late after repair of ventricular septal defect (VSD). We assessed and compared right (RV) and left ventricular (LV) mechanics in adolescents and adults after surgical closure of doubly committed subarterial and perimembranous VSDs. METHODS: A total of 75 subjects were studied: 29 patients after subarterial VSD repair (group I), 17 patients after perimembranous VSD repair (group II) and 29 age-matched controls (group III)...
October 30, 2017: European Journal of Clinical Investigation
https://www.readbyqxmd.com/read/29073000/-optimized-lv-only-pacing-using-a-dual-chamber-pacemaker-as-a-cost-effective-alternative-to-crt
#9
Maneesh K Rai, Mukund A Prabhu, Abhishek Sharma, Ritesh Vekariya, Padmanabh Kamath, Narasimha Pai, Ramanath L Kamath
BACKGROUND: Cardiac Resynchronization therapy (CRT) remains largely under-used in developing countries owing to the high cost of therapy. In this pilot study, we explore 'optimized' Left Ventricle Only Pacing (LVOP) as a cost effective alternative to cardiac resynchronization therapy in selected patients with heart failure. HYPOTHESIS: In economically poorer patients with heart failure, left bundle branch block (LBBB) and intact AV node conduction, synchronization can be obtained using a dual chamber pacemaker (leads in right atrium and Left ventricle) with the help of 2D strain imaging...
May 2017: Indian Pacing and Electrophysiology Journal
https://www.readbyqxmd.com/read/29067909/atrial-flutter-presenting-as-broad-complex-tachycardia-in-a-patient-with-right-sided-pneumonectomy
#10
Thomas Beiert, Georg Nickenig, Jan Wilko Schrickel, Markus Linhart
A 71-year-old man with no history of coronary artery disease presented with palpitations to the emergency department. The 12-lead ECG showed a regular tachycardia with wide QRS complexes (220 bpm) suggestive of ventricular tachycardia. Instead invasive electrophysiological investigation revealed typical atrial flutter as underlying arrhythmia. The altered QRS morphology resulted from displacement of the heart into the right hemithorax due to right-sided pneumonectomy in combination with bundle branch block.
July 2017: Indian Pacing and Electrophysiology Journal
https://www.readbyqxmd.com/read/29064041/does-cardiac-resynchronization-therapy-benefit-patients-with-non-left-bundle-branch-block-prolonged-qrs-patterns
#11
REVIEW
Mark N Belkin, Gaurav A Upadhyay
PURPOSE OF REVIEW: We sought to assess the utility of CRT in patients with non-LBBB. RECENT FINDINGS: CRT has an established role as a device-based therapy for patients with HF with systolic dysfunction and intraventricular conduction disease, specifically LBBB. In modern practice, the use of CRT in non-LBBB patients remains controversial, with high rates of non-response for CRT in patients with RBBB, in particular. Recent studies have identified sub-populations of non-LBBB patients that respond to resynchronization, such as those with prolonged PR intervals (≥ 230 ms), with RBBB and concomitant left-sided delay and those with significant burden of right ventricular pacing...
October 24, 2017: Current Cardiology Reports
https://www.readbyqxmd.com/read/29059999/performance-of-compressive-sensing-for-the-reconstruction-of-different-qrs-pulses-in-ecg-signals
#12
Jeevan K Pant, Sridhar Krishnan
Compressive sensing (CS) is studied for the acquisition of different QRS complexes in ECG signals. By applying sparse binary measurement matrix and by applying regularization for promoting temporal correlation, performance of CS techniques for the reconstruction of ECG segments containing different QRS complexes, such as, normal QRS, paced QRS, right bundle branch block beat, left bundle branch block beat, and ventricular flutter beat, has been studied. Simulation results demonstrate that performance of CS differs with the types of beats, and ECG segments with well-known beats can be reconstructed with signal-to-noise ratio (SNR) approximately equal to 25dB for the realization of CS systems with compression ratio as high as 95%; for lower compression ratio much higher SNR can be attained...
July 2017: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/29037444/prevalence-and-prognostic-relevance-of-ventricular-conduction-disturbances-in-patients-with-aortic-stenosis
#13
Edgard A Prihadi, Melissa Leung, E Mara Vollema, Arnold C T Ng, Nina Ajmone Marsan, Jeroen J Bax, Victoria Delgado
The prevalence and prognostic implications of ventricular conduction disturbances in aortic stenosis (AS) have not been extensively evaluated. The present retrospective study investigated the prevalence and prognostic implications of ventricular conduction abnormalities (including the QRS morphology and duration) in AS. A total of 1,245 patients (mean age 66 ± 14 years, 62.8% men) with varying AS severity (aortic sclerosis 33.9%, mild AS 11.5%, moderate AS 29.9%, and severe AS 24.7%) were evaluated. Demographic, clinical variables, and presence of ventricular conduction abnormalities on the electrocardiogram (based on QRS morphology and duration) were related to occurrence of all-cause mortality, correcting for occurrence of aortic valve replacement...
September 18, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/29034539/recurrent-extensive-anterior-myocardial-infarction-with-left-and-right-bundle-branch-block
#14
Hexi Jiang, Qinghua Chang, Yingjie Zhang, Renguang Liu
The diagnosis of myocardial infarction with left bundle branch block is difficult. We report a case of 56-year-old man with old extensive anterior myocardial infarction and left bundle branch block (masked each other). The recurrent myocardial infarction indicated right bundle branch block and first-degree atrioventricular block, making a clear diagnosis of complicated and interesting ECG.
October 15, 2017: Annals of Noninvasive Electrocardiology
https://www.readbyqxmd.com/read/29031929/permanent-his-bundle-pacing-as-an-alternative-to-biventricular-pacing-for-cardiac-resynchronization-therapy-a-multi-center-experience
#15
Parikshit S Sharma, Gopi Dandamudi, Bengt Herweg, David Wilson, Rajeev Singh, Angela Naperkowski, Jayanthi N Koneru, Kenneth A Ellenbogen, Pugazhendhi Vijayaraman
INTRODUCTION: Cardiac resynchronization therapy (CRT) using biventricular pacing (BVP) is effective in patients with heart failure, bundle branch block (BBB) or right ventricular pacing. Permanent His bundle pacing (HBP) has been reported as an alternative option for CRT. OBJECTIVE: The aim of the study was to assess the feasibility and outcomes of HBP in CRT eligible or failed patients. METHODS: HBP was attempted as a rescue strategy in patients with failed LV lead or non-response to BVP (Group I); or as a primary strategy in patients with AV block, BBB, or high ventricular pacing burden as an alternative to BVP (Group II) in patients with indications for CRT...
October 11, 2017: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/29029965/contemporary-epidemiology-management-and-outcomes-of-patients-hospitalized-for-heart-failure-in-china-results-from-the-china-heart-failure-china-hf-registry
#16
Yuhui Zhang, Jian Zhang, Javed Butler, Xiaomin Yang, Peiyi Xie, Dongshuang Guo, Tiemin Wei, Jing Yu, Zhenli Wu, Yingchun Gao, Xiumin Han, Xuelian Zhang, Susheng Wen, Stefan D Anker, Gerasimos Filippatos, Gregg C Fonarow, Tianyi Gan, Rongcheng Zhang
BACKGROUND: Contemporary data on the epidemiology of heart failure (HF) in China are scarce. The China HF Registry was designed to investigate clinical characteristics, management, and outcomes of patients hospitalized for HF in China. DESIGN AND SUBJECTS: Data were collected prospectively on 13687 patients with a primary discharge diagnosis of HF who were enrolled from 132 participating hospitals between January 2012 to September 2015. Data from the China HF registry was compared with previously published literature...
October 10, 2017: Journal of Cardiac Failure
https://www.readbyqxmd.com/read/29025777/oesophageal-ischaemia-an-uncommon-cause-of-chest-pain
#17
Ayodele Sasegbon, Akram Algieder, Bashir Rameh
A 79-year-old woman with a history of ischaemic heart disease and atrial fibrillation presented to hospital with severe chest pain. Blood tests showed an elevated D-dimer and a rise in troponin I. ECG showed right bundle branch block pattern and T wave inversion in leads V1 to V3, although these changes were present in old ECGs. A chest X-ray was done which was normal. Due to the nature and severity of her pain a CT aortic angiogram was done. This did not show any evidence of aortic dissection or a pulmonary embolism...
October 11, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/29019518/prevalence-and-predictive-value-of-electrocardiographic-abnormalities-in-pulmonary-hypertension-evidence-from-the-pan-african-pulmonary-hypertension-cohort-papuco-study
#18
Irina Balieva, Anastase Dzudie, Friedrich Thienemann, Ana O Mocumbi, Kamilu Karaye, Mahmoud U Sani, Okechukwu S Ogah, Adriaan A Voors, Andre Pascal Kengne, Karen Sliwa
BACKGROUND: Pulmonary hypertension (PH) is prevalent in Africa and is still often diagnosed only at an advanced stage, therefore it is associated with poor quality of life and survival rates. In resource-limited settings, we assessed the diagnostic utility of standard 12-lead electrocardiograms (ECG) to detect abnormalities indicating PH. METHODS: Sixty-five patients diagnosed with PH were compared with 285 heart disease-free subjects. The prevalence and diagnostic performance of ECG features indicative of PH and right heart strain were calculated...
October 11, 2017: Cardiovascular Journal of Africa
https://www.readbyqxmd.com/read/29017215/-pulmonary-embolism-despite-rivaroxaban-in-an-obese-patient
#19
Thomas Schuh, Claudia Stöllberger
Introduction Rivaroxaban, an oral factor Xa inhibitor, is approved for therapy of venous thromboembolism. It is unclear whether the standard dose for patients with a body mass index (BMI) > 40 kg/m(2) is sufficient. History The 45-year-old patient was admitted because of increasing respiratory distress. She had a history of pulmonary embolism 30 months before the admission, a factor V Leiden mutation and several hospitalisations due to dermatomycoses. The patient briefly took phenprocoumon which was changed to 20 mg rivaroxaban due to a lack of adherence...
October 2017: Deutsche Medizinische Wochenschrift
https://www.readbyqxmd.com/read/28981521/nonalcoholic-fatty-liver-disease-is-associated-with-an-increased-risk-of-heart-block-in-hospitalized-patients-with-type-2-diabetes-mellitus
#20
Alessandro Mantovani, Riccardo Rigolon, Isabella Pichiri, Stefano Bonapace, Giovanni Morani, Giacomo Zoppini, Enzo Bonora, Giovanni Targher
Recent studies suggested that nonalcoholic fatty liver disease (NAFLD) is associated with an increased risk of cardiac tachyarrhythmias (mainly atrial fibrillation) in patients with and without type 2 diabetes mellitus. The aim of this study was to examine whether an association also exists between NAFLD and heart block. We have retrospectively evaluated a hospital-based cohort of 751 patients with type 2 diabetes discharged from our Division of Diabetes and Endocrinology during years 2007-2014. Standard electrocardiograms were performed on all patients...
2017: PloS One
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