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supraventricular arrhythmias

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https://www.readbyqxmd.com/read/28213508/familial-occurrence-of-atrioventricular-nodal-reentrant-tachycardia
#1
Yoav Michowitz, Adi Anis-Heusler, Eyal Reinstein, Oholi Tovia-Brodie, Aharon Glick, Bernard Belhassen
BACKGROUND: Atrioventricular nodal reentrant tachycardia (AVNRT) is considered a sporadic disease occurring in ≈22.5 cases per 10 000 in the general population. We define the prevalence and characteristics of familial AVNRT among patients who underwent radiofrequency ablation. METHODS AND RESULTS: Ablation reports of all patients with familial AVNRT (at least 2 first-degree family members) who underwent radiofrequency ablation in our institution and in another hospital were reviewed...
February 2017: Circulation. Arrhythmia and Electrophysiology
https://www.readbyqxmd.com/read/28183572/cervical-sympathetic-blockade-for-the-management-of-electrical-storm
#2
Rehan Ali, Jeffrey Ciccone, Victor Tseng
A 75-year-old man presented with dizziness and fatigue secondary to ventricular and supraventricular arrhythmias. He underwent an elective ablation but continued to suffer from ventricular tachycardia with cardiovascular instability despite antiarrhythmic therapy with multiple agents. The patient continued to develop episodes of ventricular tachycardia and an episode of ventricular fibrillation. Electrical storm encompasses a situation of cardiac instability which may present as several episodes of ventricular tachycardia or ventricular fibrillation in a short period...
February 2017: Journal of Clinical Anesthesia
https://www.readbyqxmd.com/read/28143616/hypertrophic-obstructive-cardiomyopathy-with-multiple-coronary-arteries-to-right-ventricular-microfistulas-a-case-report-and-review-of-the-literature
#3
Daulat Singh Meena, Chandra Bhan Meena, Javed Parvez
BACKGROUND: Coronary artery microfistulas are a rare anomaly; their association with hypertrophic cardiomyopathy is even rarer and can lead to serious cardiac complications owing to coronary steal phenomena such as angina pectoris, myocardial infarction, congestive heart failure, ventricular and supraventricular arrhythmias, syncope, and sudden death. CASE PRESENTATION: A 32-year-old Indian woman presented to our institute with severe angina on exertion and multiple episodes of pre-syncope...
January 31, 2017: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/28127215/use-of-short-term-steroids-in-the-prophylaxis-of-atrial-fibrillation-after-cardiac-surgery
#4
Zeyad Al-Shawabkeh, Khalid Al-Nawaesah, Razi Abu Anzeh, Hael Al-Odwan, Wasfi Azyoud Bashar Al-Rawashdeh, Haetham Altaani
OBJECTIVES: To assess the effectiveness of corticosteroids in the prophylaxis of postoperative atrial fibrillation (AF) in patients undergoing elective coronary artery bypass grafting or valvular heart surgery in terms of reducing its incidence and decreasing the length of hospital stay. METHODS: This prospective double blinded randomized study was conducted at Queen Alia Heart Institute (Amman, Jordan) from June 2014 to June 2015 on 340 patients who underwent their first on-pump elective coronary artery bypass grafting (CABG) alone or combined with valvular surgery...
January 2017: Journal of the Saudi Heart Association
https://www.readbyqxmd.com/read/28125405/av-nodal-reentrant-tachycardia-with-a-2-1-right-bundle-branch-block-missed-as-bidirectional-ventricular-tachycardia-in-the-first-superficial-evaluation
#5
Mohammad Ali Akbarzadeh, Isa Khaheshi, Mehdi Memaryan, Mohammad Parsa Mahjoob, Mohammadreza Naderian
A 95-year old woman was admitted to our emergency unit because of acute abdominal pain. After urgent surgery according to the acute abdomen, she was referred to intensive care unit (ICU) of the emergency unit as she was intubated. It was developed a run of new arrhythmia which was diagnosed by cardiology resident as bidirectional ventricular tachycardia due to beat to beat changing the axis of the QRS. However, a second and more precise evaluation of the abnormal ECG suggested a narrow supraventricular tachycardia, most probably AV nodal reentrant tachycardia with a 2:1 right bundle branch block...
January 25, 2017: Romanian Journal of Internal Medicine, Revue Roumaine de Médecine Interne
https://www.readbyqxmd.com/read/28111177/characteristics-and-survival-determinants-in-patients-after-out-of-hospital-cardiac-arrest-in-the-era-of-24-7-coronary-intervention-facilities
#6
Josef Kroupa, Jiri Knot, Jaroslav Ulman, Frantisek Bednar, Alena Dohnalova, Zuzana Motovska
BACKGROUND: Survival rates and outcomes after out-of-hospital cardiac arrest (OHCA) remain low despite investments of time and money. The goal of this analysis was to identify variables related to survival of patients transferred to our coronary care unit (CCU) after an OHCA. METHODS: 102 consecutive OHCA patients, mean age 64.6 (SD 13.3), 70.6% men, between January, 2011 and December, 2013, who were transferred to our tertiary care CCU, were studied. RESULTS: Cardiac-cause OHCA was present in 84 patients (82...
December 24, 2016: Heart, Lung & Circulation
https://www.readbyqxmd.com/read/28110301/transcranial-measurement-of-cerebral-microembolic-signals-during-left-sided-catheter-ablation-with-the-use-of-different-approaches-the-potential-microembolic-risk-of-a-transseptal-approach
#7
Jin Iwasawa, Shinsuke Miyazaki, Takamitsu Takagi, Hiroshi Taniguchi, Hiroaki Nakamura, Hitoshi Hachiya, Yoshito Iesaka
AIMS: Subclinical brain damage due to microembolization could occur during catheter ablation procedures. We evaluated the microembolic signals (MESs) detected by transcranial Doppler during ablation of supraventricular tachycardias (SVTs) or idiopathic ventricular arrhythmias (VAs) with the use of different approaches. METHODS AND RESULTS: This study included 36 patients (23 men, 49 ± 21 years) who underwent catheter ablation of SVTs (n = 27) or idiopathic VAs (n = 9)...
January 20, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28109316/adenosine-induced-ventricular-fibrillation-in-a-structurally-normal-heart-a-case-report
#8
Christopher A Rajkumar, Norman Qureshi, Fu Siong Ng, Vasileios F Panoulas, Phang Boon Lim
BACKGROUND: Adenosine is the first-line pharmacotherapy for termination of supraventricular tachycardia through its action on the atrioventricular node. However, pro-arrhythmic effects of adenosine are also recognised, most notably in the presence of pre-excited atrial fibrillation. In this case report, we describe the induction of ventricular fibrillation in a patient with no demonstrable accessory pathway, nor any other structural heart disease. This rare, idiosyncratic reaction has never previously been reported and is of relevance given the widespread and routine use of adenosine in clinical practice...
January 22, 2017: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/28101660/pocketecg-a-new-noninvasive-method-for-continuous-and-real-time-ecg-monitoring-initial-results-in-children-and-adolescents
#9
Katarzyna Bieganowska, Agnieszka Kaszuba, Maciej Bieganowski, Krzysztof Kaczmarek
Long-term ECG is widely used in diagnosis and assessment of many cardiac symptoms which may be caused by dangerous arrhythmias that sometimes can be difficult to document. The PocketECG system is a new technological solution for a long-term, noninvasive, continuous and real-time ECG monitoring that provides automatic diagnosis of dysrhythmias. ECG data transmission occurs over a mobile network. The goal of this study was to assess the reliability of long-term ECG recordings acquired with the PocketECG system...
January 18, 2017: Pediatric Cardiology
https://www.readbyqxmd.com/read/28099588/dobutamine-stress-echocardiography-safety-in-chagas-disease-patients
#10
Daniela do Carmo Rassi, Marcelo Luiz Campos Vieira, Rogerio Gomes Furtado, Fabio de Paula Turco, Luciano Henrique Melato, Viviane Tiemi Hotta, Colandy Godoy de Oliveira Nunes, Luiz Rassi, Salvador Rassi
Background: A few decades ago, patients with Chagas disease were predominantly rural workers, with a low risk profile for obstructive coronary artery disease (CAD). As urbanization has increased, they became exposed to the same risk factors for CAD of uninfected individuals. Dobutamine stress echocardiography (DSE) has proven to be an important tool in CAD diagnosis. Despite being a potentially arrhythmogenic method, it is safe for coronary patients without Chagas disease. For Chagas disease patients, however, the indication of DSE in clinical practice is uncertain, because of the arrhythmogenic potential of that heart disease...
January 16, 2017: Arquivos Brasileiros de Cardiologia
https://www.readbyqxmd.com/read/28073682/study-design-for-control-of-heart-rate-in-infant-and-child-tachyarrhythmia-with-heart-failure-using-landiolol-heartful-a-prospective-multicenter-uncontrolled-clinical-trial
#11
Naokata Sumitomo, Hitoshi Horigome, Masaru Miura, Hiroshi Ono, Hideaki Ueda, Kiyohiro Takigiku, Jun Yoshimoto, Naoki Ohashi, Tsugutoshi Suzuki, Koichi Sagawa, Hiroya Ushinohama, Kazuhiro Takahashi, Aya Miyazaki, Heima Sakaguchi, Mari Iwamoto, Motoki Takamuro, Chiho Tokunaga, Tetsuji Nagano
BACKGROUND: Persistent tachycardia in pediatric patients after congenital heart surgery further deteriorates their hemodynamic condition, and may become fatal. Therefore, immediate control of the tachycardia is mandatory in these patients. For this purpose, quick-acting, short-acting, titratable intravenous agents are required. However, there are no agents with such characteristics among the drugs approved for control of pediatric arrhythmias in Japan, and thus novel and effective medications for these patients are awaited...
January 7, 2017: Journal of Cardiology
https://www.readbyqxmd.com/read/28062620/application-of-cardiac-troponin-in-cardiovascular-diseases-other-than-acute-coronary-syndrome
#12
REVIEW
Kai M Eggers, Bertil Lindahl
BACKGROUND: Increased cardiac troponin concentrations in acute coronary syndrome (ACS) identify patients with ongoing cardiomyocyte necrosis who are at increased risk. However, with the use of more precise assays, cardiac troponin increases are commonly noted in other cardiovascular conditions as well. This has generated interest in the use of cardiac troponin for prognostic assessment and clinical management of these patients. In this review, we have summarized the data from studies investigating the implications of cardiac troponin concentrations in various acute and chronic conditions beyond ACS, i...
January 2017: Clinical Chemistry
https://www.readbyqxmd.com/read/28055994/-supraventricular-arrhythmia-electrocardiographic-aspects
#13
Antoni Bayés de Luna
Supraventricular arrhythmias are one of the main causes of medical consultation. They may also be the clinical presentation of various cardiovascular diseases and a marker of sudden death. The correct diagnosis of these arrhythmias could be a challenge. The purpose of this narrative review is to update succinctly on the topic.
December 23, 2016: Medwave
https://www.readbyqxmd.com/read/28052814/the-diagnostic-yield-of-implantable-loop-recorders-in-unexplained-syncope-a-systematic-review-and-meta-analysis
#14
Monica Solbiati, Giovanni Casazza, Franca Dipaola, Franca Barbic, Maja Caldato, Nicola Montano, Raffaello Furlan, Robert S Sheldon, Giorgio Costantino
BACKGROUND: Guidelines recommend that implantable loop recorders (ILRs) are used in the evaluation of people with recurrent unexplained syncope in the absence of high-risk criteria, and in high-risk patients after a negative evaluation. The aim of this systematic review was to analyze the diagnostic yield of ILRs in these patients. METHODS: We performed a systematic search in order to retrieve studies enrolling adults undergoing ILR implantation for undetermined syncope...
March 15, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28045841/a-novel-method-of-intraosseous-infusion-of-adenosine-for-the-treatment-of-supraventricular-tachycardia-in-an-infant
#15
Krista Helleman, Amrit Kirpalani, Rodrick Lim
Supraventricular tachycardia is a common arrhythmia faced by emergency physicians in the pediatric population. In most cases, antecubital intravenous access can be established, and adenosine can be administered in a rapid and timely fashion. The role and administration of intraosseous adenosine are poorly established. We describe a case where the administration of adenosine was successful via a mixed method administration.
January 2017: Pediatric Emergency Care
https://www.readbyqxmd.com/read/28009317/-evaluation-of-the-realtionship-of-different-pathogenic-factors-and-arrhythmias-in-patients-with-pulmonary-tuberculosis-and-diabetes
#16
Z Kurbanova, A Bahshaliyev, R Bayramov, J Ismailzada
Definition of the most important factors and their combination, causing the disturbances of heart rhythm in patients with the pulmonary tuberculosis and diabetes, now attracts more and more attention. For this purpose, extensively used the capabilities of multifactorial analysis, which allowed to evaluate the distribution of the pathological factors and their interaction with each other. The objects of the study were complex examination the data of 90 patients with pulmonary tuberculosis and diabetes (insulin-dependent diabetes-27, non-insulin- dependent diabetes-63)...
November 2016: Georgian Medical News
https://www.readbyqxmd.com/read/28008694/a-narrow-qrs-tachycardia-and-cannon-a-waves-what-is-the-mechanism
#17
Hussam Ali, Gianluca Epicoco, Guido De Ambroggi, Pierpaolo Lupo, Sara Foresti, Riccardo Cappato
Regular narrow QRS tachycardia, particularly if well-tolerated, is usually considered a "benign" arrhythmia of a supraventricular origin. This case concerns an 82-year-old male with ischemic heart disease who presented with recurrent episodes of a narrow QRS tachycardia that was initially diagnosed and treated as atrial tachyarrhythmia. However, careful physical examination and ECG analysis established the correct diagnosis, and the patient was managed appropriately. Remarkably, the observation of irregular cannon A waves, and Lewis lead recording, confirmed atrioventricular dissociation during tachycardia and indicated its underlying mechanism...
December 23, 2016: Annals of Noninvasive Electrocardiology
https://www.readbyqxmd.com/read/28007577/-supraventricular-tachycardia-in-newborns-and-its-association-with-gastroesophageal-reflux-disease
#18
Ángeles Fuertes, Ayham Alshweki, Alejandro Pérez-Muñuzuri, María-Luz Couce
INTRODUCTION: Supraventricular tachycardia (SVT) is the most common arrhythmia in the neonatal period, but its association with other triggering processes is not well established. The aim of the study was to analyse the possible relationship between neonatal SVT and gastroesophageal reflux disease (GERD), a condition which was recently linked to atrial arrhythmias. MATERIAL AND METHODS: A retrospective longitudinal descriptive study was conducted over a period of 5years on newborns who were diagnosed with SVT in a level III neonatal unit, assessing morphological aspects, associated symptoms, and treatments received...
December 19, 2016: Anales de Pediatría: Publicación Oficial de la Asociación Española de Pediatría (A.E.P.)
https://www.readbyqxmd.com/read/28006998/supraventricular-tachycardia-during-the-first-year-of-life-is-subclinical-inflammation-the-trigger
#19
P P Bassareo, V Fanos, M Pala, L Antonucci, P Neroni, R Antonucci, G Mercuro
BACKGROUND: Neutrophil/lymphocyte ratio (NLR) and red cell distribution width (RDW) may be associated with the onset of arrhythmias in adults, thus underlining a possible inflammatory etiology. Paroxysmal supraventricular tachycardia (SVT) is the most frequent pathological tachycardia in childhood. AIMS: To verify NLR and RDW levels in a group of children (<1 year) affected by SVT with a structurally normal heart and without fever nor inflammatory diseases; to compare NLR and RDW before and after SVT resolution, to verify whether the latter was related with the reduction in inflammatory state; to identify -in SVT subtypes caused by a re-entry mechanism- an NLR and RDW cut-off point beyond which adenosine was ineffective in preventing SVT recurrence...
December 23, 2016: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/27995288/nadolol-for-treatment-of-supraventricular-tachycardia-in-infants-and-young-children
#20
Johannes C von Alvensleben, Martin J LaPage, Regine Caruthers, David J Bradley
Supraventricular tachycardia (SVT) is a common infant arrhythmia, for which beta-blockers are frequently chosen as therapy. Propranolol is a common choice though it is dosed every 6-8 h. We reviewed the clinical results of treating infant SVT with an extemporaneous preparation of nadolol. Retrospective cohort study of patients under 2 years old receiving nadolol for SVT at a single center. Patients were ascertained by patient and pharmacy databases. Twenty-eight infants received nadolol, of whom 25 had regular narrow complex tachycardia, 2 atrial flutter, and 1 focal atrial tachycardia...
December 19, 2016: Pediatric Cardiology
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