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https://read.qxmd.com/read/30745542/subcutaneous-implantable-cardioverter-defibrillator-lead-repositioning-for-preventing-inappropriate-shocks-due-to-myopotential-oversensing-in-a-post-fulminant-myocarditis-patient
#1
Takehito Sasaki, Kohki Nakamura, Shigeto Naito
A 28-year-old female presented with fulminant lymphocytic myocarditis. She developed cardiogenic shock, frequent sustained ventricular tachycardia, and fibrillation (VT and VF). The left ventricular ejection fraction improved from 5% to 40% after medical therapy, but the right ventricular systolic dysfunction and enlargement persisted. In addition, sustained VTs, requiring direct current cardioversion, occurred during oral administration of amiodarone following intravenous amiodarone, even after percutaneous stellate ganglion block...
February 8, 2019: International Heart Journal
https://read.qxmd.com/read/30745060/left-bundle-branch-block-after-transcatheter-aortic-valve-implantation-with-edwards-sapien-3-valve-influence-of-the-valve-depth-implantation
#2
Leire Unzué, Eulogio García, Belén Díaz-Antón, Francisco José Rodríguez-Rodrigo, Miguel Rodríguez Del Río, Rodrigo Teijeiro, Juan Medina, Francisco Javier Parra
OBJECTIVES: The aim of this study is to determine the relation between the valve depth implantation and the new-onset left bundle branch block (LBBB) in patients treated with transcatheter aortic valve implantation (TAVI) using Edwards Sapien 3 (S3) prosthesis. BACKGROUND: LBBB is the most common conduction disturbance after TAVI. The S3 has been associated with a higher incidence of LBBB. A deep valve implant could be related to new-onset LBBB with S3. METHODS: Seventy-six consecutive patients treated with transfemoral TAVI with S3 were included...
January 9, 2019: Cardiovascular Revascularization Medicine: Including Molecular Interventions
https://read.qxmd.com/read/30723001/lev-s-syndrome-a-rare-case-of-progressive-cardiac-conduction-disorder-presenting-to-the-emergency-department
#3
Brandon M Carius, Brit Long, Steve Schauer
Lev's Syndrome is a rare, progressive cardiac conduction defect (PCCD) due to myocardial fibrosis first described by Maurice Lev in 1964. This condition, proposed to start in the fourth decade of life, involves a sclerotic fibro-fatty degeneration of the Bundle of His and Purkinje fibers, which Lev proposed caused increasing AV delay with age. With the prevalence of electrocardiogram (ECG) use in the emergency department (ED) for cardiac- and non-cardiac complaints, dysrhythmias can be incidentally found and confuse diagnosis and disposition...
January 31, 2019: American Journal of Emergency Medicine
https://read.qxmd.com/read/30648055/a-curious-case-of-intermittent-left-bundle-branch-block-associated-with-cough
#4
Hunaina Shahab, Osman Faheem, Kumail Khandwala, Aamir H Khan
A handful of cases of voluntary control of left bundle branch block (LBBB) have been described in the literature. We report the case of a middle-aged man who was found to have LBBB on baseline electrocardiogram (ECG) which disappeared on coughing and then reappeared with the same maneuver. Subsequent myocardial perfusion scan showed reduced count in the anteroseptal region likely attributed to LBBB. It is possible that the intermittent conduction changes may be due to the alteration in the vagal tone associated with cough as reflected in the change in the PR interval on the ECG...
October 30, 2018: Curēus
https://read.qxmd.com/read/30648044/inhalation-of-1-1-difluoroethane-a-rare-cause-of-pneumopericardium
#5
Erika L Faircloth, Jose Soriano, Deep Phachu
We report a case of a 32-year-old man with a past medical history of ethanol use disorder who was brought in unresponsive after inhaling six to 10 cans of the computer cleaning product, Dust-Off. After regaining consciousness, he endorsed severe, pleuritic chest and anterior neck pain. Labs were notable for elevated cardiac enzymes, acute kidney injury, and his initial electrocardiogram (ECG) revealed a partial right bundle branch block with a prolonged corrected QT interval (QTc). On chest X-ray as well as chest computed tomography, the patient was found to have pneumomediastinum, pneumopericardium, and subcutaneous emphysema...
October 27, 2018: Curēus
https://read.qxmd.com/read/30644045/developing-of-robust-and-high-accurate-ecg-beat-classification-by-combining-gaussian-mixtures-and-wavelets-features
#6
Ali Mohammad Alqudah, Alaa Albadarneh, Isam Abu-Qasmieh, Hiam Alquran
Electrocardiogram (ECG) beat classification is a significant application in computer-aided analysis and diagnosis technologies. This paper proposed a method to detect, extract informative features, and classify ECG beats utilizing real ECG signals available in the standard MIT-BIH Arrhythmia database, with 10,502 beats had been extracted from it. The present study classifies the ECG beat into six classes, normal beat (N), Left bundle branch block beat, Right bundle branch block beat, Premature ventricular contraction, atrial premature beat, and aberrated atrial premature, using Gaussian mixture and wavelets features, and by applying principal component analysis for feature set reduction...
January 14, 2019: Australasian Physical & Engineering Sciences in Medicine
https://read.qxmd.com/read/30624533/cardiac-evaluation-in-the-acute-phase-of-chagas-disease-with-post-treatment-evolution-in-patients-attended-in-the-state-of-amazonas-brazil
#7
Jessica Vanina Ortiz, Bruna Valessa Moutinho Pereira, Katia do Nascimento Couceiro, Monica Regina Hosannah da Silva E Silva, Susan Smith Doria, Paula Rita Leite da Silva, Edson da Fonseca de Lira, Maria das Graças Vale Barbosa Guerra, Jorge Augusto de Oliveira Guerra, João Marcos Bemfica Barbosa Ferreira
BACKGROUND: In the past two decades, a new epidemiological profile of Chagas' disease (CD) has been registered in the Brazilian Amazon where oral transmission has been indicated as responsible for the increase of acute cases. In the Amazonas state, five outbreaks of acute CD have been registered since 2004. The cardiac manifestations in these cases may be characterized by diffuse myocarditis, with alteration in the electrocardiogram (ECG) and transthoracic echocardiogram (TTE). OBJECTIVE: To perform a cardiac evaluation in autochthonous patients in the acute phase and at least one year after submitted to treatment for acute CD and evaluate the demographic variables associated with the presence of cardiac alterations...
January 7, 2019: Arquivos Brasileiros de Cardiologia
https://read.qxmd.com/read/30604190/involvement-of-sphingosine-1-phosphate-receptors-2-3-in-ir-induced-sudden-cardiac-death
#8
Xiaojia Zhang, Deqing Chen, Jiaqi Wang, Jinding Liu, Hualin Guo, Gengqian Zhang
It has been demonstrated that S1P receptors affect heart ischaemia-reperfusion (IR) induced injury. However, whether S1P receptors affect IR-induced cardiac death has not been investigated. The aim of this paper is to demonstrate the role of S1P receptors in IR-induced cardiac death. Healthy adult male Sprague-Dawley rats were assigned to the following groups: non-operation control group, sham operation group, IR group, IR group pretreated with DMSO, IR group pretreated with S1P3 agonist, IR group pretreated with an antagonist of S1P3, IR group pretreated with S1P2 and S1P3 antagonists, IR group pretreated with heptanol and antagonists of S1P2/3, and IR group pretreated with Gap26 and antagonists of S1P2/3 (heptanol acts as a Cx43 uncoupler and the mimic peptide Gap26 as Cx43 blocker)...
January 2, 2019: Heart and Vessels
https://read.qxmd.com/read/30598975/acute-right-bundle-branch-block-due-to-pneumothorax
#9
Manish Ruhela, Gaurav Khandelwal, Samiksha Gupta, Agam Bansal
Changes in electrocardiogram (ECG) due to pneumothorax have been studied and are well described mainly in case of left-sided pneumothorax. Classic ECG finding in left-sided pneumothorax includes right-axis deviation, diminution of QRS complex, T-wave inversion, phasic R wave variation, and reduced R wave in precordial leads. There has been reported case of incomplete right bundle branch block (RBBB) in left-sided pneumothorax. We hereby report the first case of acute-onset complete RBBB due to left-sided pneumothorax in a young patient after blunt chest trauma from a motor vehicle accident...
September 2018: Journal of Family Medicine and Primary Care
https://read.qxmd.com/read/30575182/slow-av-nodal-pathway-affecting-fast-pathway-conduction
#10
Eric N Prystowsky
Twenty-five years ago, a 15-year-old girl was referred for electrophysiology study (EPS) and potential ablation of a documented paroxysmal supraventricular tachycardia. All her electrocardiograms (ECG) and ECG monitor stirps showed a normal PR interval, and occasional incomplete right bundle branch block. This article is protected by copyright. All rights reserved.
December 21, 2018: Journal of Cardiovascular Electrophysiology
https://read.qxmd.com/read/30563577/myocarditis-in-a-patient-treated-with-nivolumab-and-prostvac-a-case-report
#11
Cecilia Monge, Hoyoung Maeng, Alessandra Brofferio, Andrea B Apolo, Bharath Sathya, Andrew E Arai, James L Gulley, Marijo Bilusic
BACKGROUND: Immune checkpoint inhibitors have revolutionized treatment and improved survival in many cancers. However, since immune-related adverse events (irAEs) are potentially fatal, early recognition and prompt treatment are warranted. One of the rarest but most dramatic irAE is myocarditis, which has significant morbidity and mortality if not recognized and treated early. OBJECTIVE: To report the first case of myocarditis in a patient with metastatic castration-resistant prostate cancer (mCRPC) treated with a combination of nivolumab, an anti-programmed cell death protein 1 antibody, and PROSTVAC, a vector-based therapeutic prostate cancer vaccine...
December 18, 2018: Journal for Immunotherapy of Cancer
https://read.qxmd.com/read/30558188/cardioprotective-effects-of-puerarin-v-on-isoproterenol-induced-myocardial-infarction-mice-is-associated-with-regulation-of-ppar-%C3%AE-nf-%C3%AE%C2%BAb-pathway
#12
Xuguang Li, Tianyi Yuan, Di Chen, Yucai Chen, Shuchan Sun, Danshu Wang, Lianhua Fang, Yang Lu, Guanhua Du
Puerarin is a well-known traditional Chinese medicine which has been used for the treatment of cardiovascular diseases. Recently, a new advantageous crystal form of puerarin, puerarin-V, has been developed. However, the cardioprotective effects of puerarin-V on myocardial infarction (MI) heart failure are still unclear. In this research, we aim to evaluate the cardioprotective effects of puerarin-V on the isoproterenol (ISO)-induced MI mice and elucidate the underlying mechanisms. To induce MI in C57BL/6 mice, ISO was administered at 40 mg/kg subcutaneously every 12 h for three times in total...
December 14, 2018: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://read.qxmd.com/read/30558069/sarcoidosis-of-the-medulla-oblongata-causing-intractable-hiccoughs-and-numbness-of-extremities-a-case-report
#13
Xi-Yuan Chen, Zhuo-Chao Ren, Xiao-Jun Huang
RATIONALE: Sarcoidosis is a multisystem disorder characterized by noncaseating granulomas. The nervous system is involved in 5 to 16% of the patients. However, neurosarcoidosis in the medulla oblongata presenting as hiccough is remarkably rare. PATIENT CONCERN: A 55-year-old female was admitted to our hospital suffering from intractable hiccough and progressive numbness of extremities. DIAGNOSIS: The MR imaging revealed a circumscribed mass lesion located on the medulla oblongata...
December 2018: Medicine (Baltimore)
https://read.qxmd.com/read/30555891/prognostic-impact-of-bundle-branch-block-after-acute-coronary-syndrome-does-it-matter-if-it-is-left-of-right
#14
Ana Teresa Timóteo, Tiago Mendonça, Sílvia Aguiar Rosa, António Gonçalves, Ramiro Carvalho, Maria Lurdes Ferreira, Rui Cruz Ferreira
Background: In previous guidelines, acute coronary syndromes (ACS) with new or presumably new left bundle branch block (LBBB) were an indication for reperfusion treatment, preferably with primary angioplasty. Recent guidelines also included the presence of right bundle branch block (RBBB) in this recommendation. It was our objective to evaluate in a population of patients with ACS the differential impact of RBBB and LBBB in prognosis. Methods: Consecutive patients included prospectively in a single-centre registry of ACS were included in the study...
March 2019: IJC Heart & Vasculature
https://read.qxmd.com/read/30553984/atypical-ischemic-repolarization-in-right-bundle-branch-block
#15
Daniel Manzur-Sandoval, José Antonio Cornejo-Guerra, José Fernando Guadalajara-Boo
A 70-year-old male presented to emergency room 16 h after the onset of acute chest pain. Initial ECG showed sinus rhythm with a wide QRS and right bundle branch block (RBBB) with concordant and symmetric T waves in V1-V2. A plausible explanation for the atypical positive T waves in leads V1-V2 in conjunction with RBBB could be non-reperfused lateral MI (LMI) as a "mirror-image" of inverted T waves in the posterior leads V7-V9. Coronary angiography showed total thrombotic occlusion TIMI thrombus grade 5 of the circumflex artery...
December 6, 2018: Journal of Electrocardiology
https://read.qxmd.com/read/30544473/lambda-like-st-segment-elevation-in-acute-myocardial-infarction-triggered-by-coronary-spasm-may-be-a-new-risk-predictor-for-lethal-ventricular-arrhythmia-a-case-report
#16
Guangqiang Wang, Na Zhao, Chuanhuan Zhang, Shu Zhong, Xuexun Li
RATIONALE: The lambda-like ST-elevation electrocardiography (ECG) pattern is extremely rare in patients with type 2 myocardial infarction (T2MI) triggered by coronary spasm. When this ECG pattern appears, sudden cardiac death (SCD) caused by lethal ventricular arrhythmia may occur because clinicians do not pay sufficient attention to this phenomenon. PATIENT CONCERNS: We describe a 41-year-old man who presented with steep down-sloping ST-segment elevation, paroxysmal ventricular tachycardia, severe sinus bradycardia, and intermittent complete atrioventricular block on ECG during the sudden recurrence of clinical symptoms...
December 2018: Medicine (Baltimore)
https://read.qxmd.com/read/30541356/qrs-area-is-a-strong-determinant-of-outcome-in-cardiac-resynchronization-therapy
#17
Antonius M W van Stipdonk, Iris Ter Horst, Marielle Kloosterman, Elien B Engels, Michiel Rienstra, Harry J G M Crijns, Marc A Vos, Isabelle C van Gelder, Frits W Prinzen, Mathias Meine, Alexander H Maass, Kevin Vernooy
BACKGROUND: The combination of left bundle branch block (LBBB) morphology and QRS duration is currently used to select patients for cardiac resynchronization therapy (CRT). These parameters, however, have limitations. This study evaluates the value of QRS area compared with that of QRS duration and morphology in the association with clinical and echocardiographic outcomes in a large cohort of CRT patients. METHODS: A retrospective multicentre study was conducted in 1492 CRT patients...
December 2018: Circulation. Arrhythmia and Electrophysiology
https://read.qxmd.com/read/30536153/heart-involvement-in-patients-with-myotonic-dystrophy-type-2
#18
Stojan Peric, Bogdan Bjelica, Ksenija Aleksic, Masa Kovacevic, Edita Cvitan, Gorana Mandic Stojmenovic, Vidosava Rakocevic Stojanovic
Myotonic dystrophy type 2 (DM2) is a slowly progressive, autosomal-dominant disease. This is a multisystemic disorder that affects the heart, which is one of the main causes of morbidity and mortality in DM2. The aim of the study was to define cardiac impairments in patients with DM2 and its association with sociodemographic and clinical features of patients. This retrospective study comprised 62 adult patients with DM2 hospitalized at the Neurology Clinic, Clinical Center of Serbia from 2013 until 2018, who underwent electrocardiography (ECG) and echocardiography examinations...
December 7, 2018: Acta Neurologica Belgica
https://read.qxmd.com/read/30522711/-pulmonary-embolism-and-complete-atrioventricular-block
#19
J J N'Djessan, H Yao, A Ekou, E Ehouman, A Adoubi, I Kouamé, C Konin
Complete atrioventricular block is a rare complication of pulmonary embolism. We describe the case of a black African patient, aged 42 years, who presented to the emergency department of Abidjan Heart Institute for sudden onset dyspnea and hemoptysis. ECG revealed a third degree atrioventricular block. Computed tomographic angiography showed proximal pulmonary embolism of the right main pulmonary artery. To our knowledge, this is the first case of complete atrioventricular block in pulmonary embolism in Sub-Saharan Africa...
December 2018: Journal de Médecine Vasculaire
https://read.qxmd.com/read/30497763/yield-and-consistency-of-arrhythmia-detection-with-patch-electrocardiographic-monitoring-the-multi-ethnic-study-of-atherosclerosis
#20
Susan R Heckbert, Thomas R Austin, Paul N Jensen, James S Floyd, Bruce M Psaty, Elsayed Z Soliman, Richard A Kronmal
BACKGROUND: Patch electrocardiographic (ECG) monitors permit extended noninvasive ambulatory monitoring. To guide use of these devices, information is needed about their performance. We sought to determine in a large general population sample the acceptability of patch ECG monitors, the yield of arrhythmia detection, and the consistency of findings in participants monitored twice. METHODS: In the Multi-Ethnic Study of Atherosclerosis, 1122 participants completed one or two monitoring episodes using the Zio Patch XT, a single-channel ECG patch monitor capable of recording for 14 days...
November 2018: Journal of Electrocardiology
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