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Mouna Ben Kilani, Soufia Naccache, Rami Tlili, Dorra Mbarek, Salma Longo, Youssef Ben Ameur, Mohamed Rachid Boujnah
Class Ic antiarrythmic overdose is associated with a relatively high mortality. We presenta case report regarding a suicidal intoxication of an 18-year old female with a medical history of Wolff-Parkinson-White syndrome. The preliminary examination highlighted a profound cardiovascular collapse. The electrocardiogram showed a PR interval extended to 360 ms. The QRS complexes were enlarged to 360 ms with a right bundle brunch block appearance associated with left posterior hemibloc. There were repolarization abnormalities such as elevation of the J-point, convex ST segment and biphasic T wave in the right precordial leads ("Brugada-Like ECG pattern")...
June 2017: La Tunisie Médicale
Hidekazu Kondo, Tetsuji Shinohara, Toyokazu Otsubo, Miho Miyoshi, Akira Fukui, Takeshi Tsuchiya, Naohiko Takahashi
Atrioventricular reciprocating tachycardia (AVRT) and atrioventricular nodal re-entrant tachycardia (AVNRT) can coexist and present unidirectional transition (from AVRT to AVNRT, or from AVNRT to AVRT) in a single patient. Actually, such cases have already been reported previously. However, a case with spontaneous bidirectional transition of both tachycardias during supraventricular tachycardia has never been reported. This article describes a case with spontaneous, mutual, and frequent transition between AVRT and AVNRT...
February 3, 2018: Journal of Electrocardiology
Kun-Lang Wu, Shuenn-Nan Chiu, Chun-An Chen, Chun-Wei Lu, Wei-Chieh Tseng, Jou-Kou Wang, Mei-Hwan Wu
No abstract text is available yet for this article.
February 8, 2018: Journal of Electrocardiology
Philip Wackel, Bryan Cannon, Joseph Dearani, Kristen Sessions, Kimberly Holst, Jonathan Johnson, Frank Cetta
BACKGROUND: The increased incidence of preoperative and postoperative arrhythmia in Ebstein anomaly (EA) prompted some clinicians to perform an electrophysiology study (EPS) in all patients prior to surgery for EA. The cone repair (CR) is the current surgical option of choice for most young patients with EA but the effect of the CR on arrhythmia is not well established. OBJECTIVES: To assess the burden of arrhythmia in young patients after CR and to assess the utility of selective preoperative EPS...
January 8, 2018: Congenital Heart Disease
Magdalena Kumor, Magdalena Lipczyńska, Elzbieta Katarzyna Biernacka, Anna Klisiewicz, Anna Wójcik, Marek Konka, Katarzyna Kożuch, Piotr Szymański, Piotr Hoffman
BACKGROUND: Ebstein anomaly is a complex, congenital heart defect that is associated with a variety of cardiac abnormalities. Studies found a similar sarcomere gene mutation in patients with Ebstein anomaly (EA) and patients with isolated left ventricular non-compaction (LVNC). AIM: We aimed to show the prevalence of LVNC and its potential relationship with severe cardiac events (VT - ventricular tachycardia, cardiac arrest) in adult patients with EA. METHODS: We conducted a retrospective search of our institutional database from 2010 to 2014 for patients with EA and reviewed patients' medical records (age, sex, clinical presentation, electrocardiographic, echocardiographic, and CMR - cardiac magnetic resonance features)...
January 2, 2018: Journal of Cardiology
Pooya Banankhah, Gregory A Fishbein, Anthony Dota, Reza Ardehali
BACKGROUND: The Protein Kinase AMP-Activated Non-Catalytic Subunit Gamma 2 (PRKAG2) cardiac syndrome is characterized by glycogen accumulation in the cardiac tissue. The disease presents clinically with hypertrophic cardiomyopathy (HCM), and it is often associated with conduction abnormalities. CASE PRESENTATION: A 23 year-old female with history of Wolff-Parkinson-White (WPW) and HCM presented for evaluation after an episode of Non-ST Elevation Myocardial Infarction (NSTEMI)...
January 3, 2018: BMC Medical Genetics
Long-Bin Liu, Chang-Zuan Zhou, Hui Lin, Li-Ping Meng, Chang Bian, Yu Zhang, Hang-Yuan Guo
No abstract text is available yet for this article.
October 2017: Journal of Geriatric Cardiology: JGC
Yun-Seok Song, Sang-Hoon Seol, Dong-Kie Kim, Ki-Hun Kim, Doo-Il Kim
No abstract text is available yet for this article.
October 2017: Journal of Geriatric Cardiology: JGC
Cheyenne Beach, Christopher W Follansbee, Lee Beerman, Sharon Mazzocco, Li Wang, Gaurav Arora
BACKGROUND: Successful ablation sites in Wolff-Parkinson-White syndrome (WPW) are characterized by short atrioventricular (AV) intervals. Approximately 15% of patients with WPW have adenosine-sensitive accessory pathways (APs). We sought to determine if local AV intervals of adenosine-sensitive APs are different from those of adenosine-insensitive APs in patients with WPW. METHODS: Patients ≤21 years with WPW and adenosine-sensitive APs who underwent successful ablation over a 9-year period were included...
January 2018: Pacing and Clinical Electrophysiology: PACE
Katherine Ruiz, Jorge Curotto-Grasiosi, Rogelio A Machado, Adriana Angel, Diego Alasia, Bruno Peressotti
A 54-year-old man, ex smoker with high blood pressure and a history of possible Wolff-Parkinson-White syndrome was admitted for presenting an episode suggestive of acute coronary syndrome with immediate syncope and left bundle branch block, while performing physical activity. Angioplasty and a drug-eluting stent were performed in the left circumflex artery. Subsequently, Doppler echocardiography disclosed an image suggestive of a subaortic membrane. Given these findings, the patient underwent a 3D transesophageal echocardiogram and a magnetic resonance study, which confirmed the diagnosis of a subaortic membrane...
November 2017: Revista Médica del Instituto Mexicano del Seguro Social
Zachary K Winkelmann, Ashley K Crossway
Reference/Citation:  Harmon KG, Zigman M, Drezner JA. The effectiveness of screening history, physical exam, and ECG to detect potentially lethal cardiac disorders in athletes: a systematic review/meta-analysis. J Electrocardiol. 2015;48(3):329-338. CLINICAL QUESTION:   Which screening method should be considered best practice to detect potentially lethal cardiac disorders during the preparticipation physical examination (PE) of athletes? DATA SOURCES:   The authors completed a comprehensive literature search of MEDLINE, CINAHL, Cochrane Library, Embase, Physiotherapy Evidence Database (PEDro), and SPORTDiscus from January 1996 to November 2014...
November 20, 2017: Journal of Athletic Training
Hyejin Shi, Sungmin Sohn, SungHo Wang, Sungrock Park, SangKi Lee, Song Yi Kim, Sun Young Jeong, Changhwan Kim
Congenital cardiovascular anomalies, such as dextrocardia, persistent left superior vena cava (SVC), and pulmonary artery (PA) sling, are rare disorders. These congenital anomalies can occur alone, or coincide with other congenital malformations. In the majority of cases, congenital anomalies are detected early in life by certain signs and symptoms. A 56-year-old man with no previous medical history was admitted due to recurrent wide QRS complex tachycardia with hemodynamic collapse. A chest radiograph showed dextrocardia...
December 2017: Journal of Korean Medical Science
H Hino, Y Oda, Y Yoshida, T Suzuki, M Shimada, K Nishikawa
BACKGROUND: We hypothesized that, compared with propofol, desflurane prolongs the antegrade accessory pathway effective refractory period (APERP) in children undergoing radiofrequency catheter ablation for Wolff-Parkinson-White (WPW) syndrome. METHODS: In this randomized crossover study, children aged 4.1-16.1 years undergoing radiofrequency catheter ablation for WPW syndrome were randomly divided into four groups according to the concentration of desflurane and anesthetics used in the first and the second electrophysiological studies (EPS)...
October 25, 2017: Acta Anaesthesiologica Scandinavica
Aaron L Baggish, Ankit B Shah
No abstract text is available yet for this article.
October 3, 2017: Trends in Cardiovascular Medicine
Kazushi Ueshima, Yoshihide Nakamura, Satoru Takeno, Toshiharu Miyake, Tsukasa Takemura
We report a case of a 7-year-old girl with atriofascicular Mahaim (AFM) pathway concomitant with Ebstein's anomaly. The QRS wave showed left bundle branch block pattern on electrocardiogram. Holter electrocardiogram showed prolongation of the PR interval and QRS morphological change during sinus tachycardia. An electrophysiological study demonstrated that the distal His potential appeared earlier than the proximal His potential, which suggested retrograde His conduction toward the atrioventricular node. Conduction from the Mahaim fiber to the His bundle was faster than that from the atrioventricular node towards the His bundle...
October 2017: Journal of Arrhythmia
Tomoo Nagai, Akira Hamabe, Junko Arakawa, Hirotsugu Tabata, Toshihiko Nishioka
PURPOSE: The purpose of this study was to evaluate left ventricular (LV) deformation and LV dyssynchrony in patients with Wolff-Parkinson-White (WPW) syndrome and to identify the factors that affect the efficacy of radiofrequency catheter ablation (RFCA). METHODS: Thirty patients (26 men, mean age 40 ± 12 years) with WPW syndrome were prospectively recruited for this study. They underwent 2-dimensional transthoracic echocardiography with speckle tracking analysis before RFCA and again within 48 hours after RFCA...
November 2017: Echocardiography
M N Hasan, K Ahmed, S M Ahmed, M M Rahman
Ebstein's anomaly is a rare congenital heart disorder, accounting for <1% of all cases of congenital heart disease. It is a congenital malformation of the heart that is characterized by apical displacement of the septal and posterior tricuspid valve leaflets, leading to atrialization of the right ventricle with a variable degree of malformation and displacement of the anterior leaflet. We report the case of a 25 years old female with Ebstein's anomaly which was associated with Ostium Secundum type of atrial septal defect and WPW syndrome, who presented with dyspnea, palpitations, cyanosis, clubbing and cardiomegaly...
July 2017: Mymensingh Medical Journal: MMJ
Ronen Ben Jehuda, Binyamin Eisen, Yuval Shemer, Lucy N Mekies, Agnes Szantai, Irina Reiter, Huanhuan Cui, Kaomei Guan, Shiraz Haron-Khun, Dov Freimark, Silke R Sperling, Mihaela Gherghiceanu, Michael Arad, Ofer Binah
BACKGROUND: Mutations in the PRKAG2 gene encoding the γ-subunit of adenosine monophosphate kinase (AMPK) cause hypertrophic cardiomyopathy (HCM) and familial Wolff-Parkinson-White (WPW) syndrome. Patients carrying the R302Q mutation in PRKAG2 present with sinus bradycardia, escape rhythms, ventricular preexcitation, supraventricular tachycardia, and atrioventricular block. This mutation affects AMPK activity and increases glycogen storage in cardiomyocytes. The link between glycogen storage, WPW syndrome, HCM, and arrhythmias remains unknown...
September 14, 2017: Heart Rhythm: the Official Journal of the Heart Rhythm Society
Florian Zauner, Jan-Thorben Sieweke, Stephan Hohmann, David Duncker, Christian Riehle, L Christian Napp, Ulrike Flierl, Thorben König, Christian Veltmann
BACKGROUND: Wolff-Parkinson-White (WPW) syndrome and idiopathic left ventricular tachycardia (ILVT) are rare and up to now the coexistence of both entities has rarely been reported. In patients with ventricular preexcitation the underlying mechanism of paroxysmal tachycardia most likely is atrioventricular reentrant tachycardia (AVRT). However, without ECG documentation of the tachycardia diagnosis of the underlying mechanism cannot be made due to similar clinical presentation of AVRT and ILVT...
September 12, 2017: BMC Cardiovascular Disorders
Damián Longo, Adrian Baranchuk
In patients with manifest anterograde ventricular preexcitation, the electrocardiographic manifestation of the anomalous conduction through the simultaneous conduction over the atrioventricular (AV) node and the accessory pathway ("delta wave"); depends on several factors, the most representative being the conduction velocity over one or another connection. Occasionally, ventricular ectopic beats may present with retrograde penetration over one or both conduction pathways (AV node and/or accessory pathway), impacting on the morphology of the next immediate anterogradely conducted QRS...
August 24, 2017: Annals of Noninvasive Electrocardiology
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