journal
MENU ▼
Read by QxMD icon Read
search

Pacing and Clinical Electrophysiology: PACE

journal
https://www.readbyqxmd.com/read/29154461/patient-understanding-of-disease-and-the-use-and-outcome-of-implantable-cardioverter-defibrillators-in-hypertrophic-cardiomyopathy
#1
Shankar Baskar, John L Jefferies, Lisa Salberg, Philip R Khoury, David S Spar, Timothy K Knilans, Richard J Czosek
Hypertrophic cardiomyopathy (HCM) is the most common cause of sudden cardiac death (SCD) in young individuals. Implantable cardioverter defibrillators (ICD) are the primary therapy for sudden death prevention; however, are associated with both physical and psychological complications. We sought to determine factors associated with ICD understanding and patient satisfaction. This was a cross-sectional study, using patient/parent answered questionnaires distributed to patients enrolled in the Hypertrophic Cardiomyopathy Association...
November 20, 2017: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/29148067/should-theophylline-be-added-to-the-j-wave-syndrome-therapeutic-armamentarium
#2
EDITORIAL
Charles Antzelevitch, Sami Viskin
The substrate for both early repolarization syndrome (ERS) and Brugada syndrome (BrS), the so-called J wave syndromes, has been shown to develop as a consequence of genetic variants causing a loss of function of inward currents such sodium (INa ) and calcium (ICa ) channel currents or a gain of function in outward currents such as the transient outward current (Ito ). These changes in ion channel function result in an outward shift of the balance of currents active during the early phases of the epicardial action potential in the right ventricular outflow tract (RVOT) of the heart in the case BrS and in the inferior left ventricle in the case of ERS...
November 16, 2017: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/29148065/improvement-in-low-upright-baroreflex-sensitivity-is-associated-with-positive-clinical-effect-of-orthostatic-training
#3
Peter Mitro, Miloš Simurda, Ervin Muller
AIM: To assess the clinical efficacy of orthostatic training (OT) and its effect on the autonomic activity. METHODS: OT was performed in 38 patients (13 males, age 36.4 ± 15.2 years). Baroreflex sensitivity (BRS), heart rate variability and quality of life (SF 36) was assessed before and after 6 months of OT. Patients with no recurrence of syncope and reduction of the presyncope number to one-third or less were classified as responders. RESULTS: Compliance to OT was low...
November 16, 2017: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/29148059/theophilline-as-an-adjunct-to-control-malignant-ventricular-arrhythmia-associated-with-early-repolarization
#4
Tilman Perrin, Regis Guieu, Linda Koutbi, Frédéric Franceschi, Jérôme Hourdain, Michele Brignole, Jean-Claude Deharo
Early repolarization (ER) has been associated with an increased risk of sudden cardiac arrest. Interestingly, ventricular arrhythmias seem to be triggered by parasympathetic stimulation. In the present case report, we describe complete control of highly frequent malignant ventricular arrhythmias after adding theophylline to ineffective oral hydroquinidine and high-rate pacing in a patient suffering from malignant ER. We hypothesize that the theophylline-mediated enhanced beta-adrenergic stimulation could reduce the transmural myocardial voltage discrepancy by increasing the inward ICa,L current...
November 16, 2017: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/29148055/theophylline-the-forgotten-antiarrhythmic-drug%C3%A2-now-for-malignant-early-repolarization
#5
EDITORIAL
Sami Viskin, Ofer Havakuk, Charles Antzelevitch, Raphael Rosso
No abstract text is available yet for this article.
November 16, 2017: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/29139550/long-term-clinical-and-echocardiographic-outcomes-of-mitraclip-therapy-in-patients-non-responders-to-cardiac-resynchronization
#6
Valerio L Giaimo, Paolo Zappulla, Arianna Cirasa, Donatella Tempio, Maria Sanfilippo, Giulia Rapisarda, Danilo Trovato, Angelo Di Grazia, Claudio Liotta, Carmelo Grasso, Davide Capodanno, Corrado Tamburino, Valeria Calvi
OBJECTIVES: This study deals clinical and echocardiographic outcomes in cardiac resynchronization therapy (CRT) non-responders patients undergoing Mitraclip procedure. BACKGROUND: Functional mitral regurgitation (FMR) occurs in approximately one-third of heart failure (HF) patients. Resynchronization therapy may correct FMR in patients with HF, however significant FMR persists in 20-25% of CRT patients. METHODS: All patients included were previously treated with CRT for at least 6 months and remained classified as New York Heart Association (NYHA) functional class III or IV despite optimal medical therapy; the echocardiographic assessment showed lack of decrease of the left ventricular end systolic volume (LVESV) of at least 10% and residual moderate-to-severe or severe FMR...
November 15, 2017: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/29139149/under-recognized-entity-of-the-transient-rise-in-the-atrial-capture-threshold-early-after-dual-chamber-pacemaker-implantation
#7
Yoshiko Uehara, Kentaro Yoshida, Akira Kimata, Kojiro Ogawa, Daisuke Abe, Yasuaki Tsumagari, Hidekazu Tsuneoka, Yoshiaki Yui, Yoko Ito, Mari Ebine, Noriyuki Takeyasu, Kazutaka Aonuma, Akihiko Nogami
BACKGROUND: Steroid-eluting pacemaker leads suppress acute rises in pacing threshold by preventing inflammatory processes. However, we occasionally encounter not persistent but transient rise in the atrial capture threshold (TRACT) early after pacemaker implantation. We believe that this phenomenon is under-recognized in clinical practice and may potentially lead to unnecessary re-intervention. We aimed to clarify the prevalence, predictors, and possible mechanisms of TRACT. METHODS AND RESULTS: We reviewed clinical records from 239 consecutive patients who underwent dual-chamber pacemaker implantation for sick sinus syndrome (SSS) (N = 102) or atrioventricular block (AVB) (N = 137)...
November 15, 2017: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/29127709/pulmonary-damage-following-right-ventricular-outflow-tachycardia-ablation-in-a-child-when-electroanatomical-mapping-isn-t-good-enough
#8
Neha Bansal, Daisuke Kobayashi, Peter P Karpawich
A 14-year-old female was referred for severe pulmonary valve insufficiency after undergoing radiofrequency ablation for a right ventricular outflow tract tachycardia that originated in the proximal pulmonary artery at 10 years of age. Clinical records indicated that ablation was guided solely by electrograms and electroanatomical mapping. Due to myocardial tissue extensions, mapping failed to identify the level of the pulmonary valve annulus, which resulted in delivery of energy on the valve proper and into the pulmonary artery...
November 11, 2017: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/29127698/coincident-proximal-and-distal-retrograde-left-atrial-activation-one-or-two-accessory-pathways
#9
Layth Saleh, Steven M Markowitz, Jim W Cheung, George Thomas, Christopher F Liu, James E Ip, Bruce B Lerman
No abstract text is available yet for this article.
November 11, 2017: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/29090492/late-potentials-and-their-correlation-with-ventricular-structure-in-patients-with-ventricular-arrhythmias
#10
Peter Marstrand, Anna Axelsson, Jens Jakob Thune, Niels Vejlstrup, Steen Pehrson, Henning Bundgaard, Juliane Theilade
INTRODUCTION: The presence of late potentials (LP) may indicate a predisposition to ventricular arrhythmias and sudden cardiac death. We investigated the association between presence of LP and structural cardiac anomalies assessed by magnetic resonance (CMR) in patients presenting with ventricular arrhythmias. METHODS: We included 42 patients admitted with ventricular tachycardia or fibrillation who had undergone both signal-averaged ECG recording and CMR imaging...
November 1, 2017: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/29090491/clinical-safety-and-performance-of-a-mri-conditional-pacing-system-in-patients-undergoing-cardiac-mri
#11
Chi Keong Ching, Rabindra Nath Chakraborty, Tarlochan Singh Kler, Satchana Pumprueg, Tachapong Ngarmukos, Joseph Yat Sun Chan, Sumit Anand, Rakesh Yadav, Surapun Sitthisook, Ka Wing Yim, Rakesh K Jaswal, Kartikeya Bhargava
BACKGROUND: Utilization of cardiac Magnetic Resonance Imaging (cMRI) as an imaging modality in clinical practice is rapidly increasing. More evidence from randomized studies establishing clinical safety and performance of pacing systems in patients undergoing a cMRI scan is needed. OBJECTIVES: The purpose of this prospective, multi-center, randomized study was to demonstrate safety and efficacy of the Accent MRIۛ conditional pacing systems in patients undergoing cMRI scan...
November 1, 2017: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/29090490/the-effect-of-an-ultra-low-framerate-and-antiscatter-grid-less-radiation-protocol-for-cardiac-device-implantations
#12
Philipp Attanasio, Tobias Schreiber, Abdul Parwani, Philipp Lacour, Burkert Pieske, Wilhelm Haverkamp, Florian Blaschke, Martin Huemer
BACKGROUND AND AIMS: Antiscatter grids improve image contrast by absorbing scattered X-ray beams. By removing the antiscatter grid patient dose can be reduced as more X-ray beams reach the image receptor. Additionally there is a trend towards ultra low framerates for radiation dose reduction during various EP procedures. As for most cardiac device implantations (CIED) image quality demands are usually modest, the purpose of this study was to assess the safety and efficacy of an ultra-low frame rate and scatter grid-less radiation protocol...
November 1, 2017: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/29087000/pulmonary-vein-isolation-with-real-time-pulmonary-vein-potential-recording-using-second-generation-cryoballoon-procedural-and-biophysical-predictors-of-acute-pulmonary-vein-reconnection
#13
Hui-Qiang Wei, Xiao-Gang Guo, Gong-Bu Zhou, Qi Sun, Xu Liu, Jian-Du Yang, Bin Luo, Jian Ma
OBJECTIVE: The study sought to evaluate the procedural and biophysical factors related with acute PV isolation guided by real-time PV potential recordings. METHODS: A total of 180 consecutive patients with drug-resistant AF undergoing CB2 ablation were enrolled. Real-time monitoring of PV potentials was obtained using an inner lumen spiral mapping catheter. RESULTS: Acute isolation was achieved in all PVs without touch-up ablation. Real-time assessment of PV disconnection was possible in 611 of 711 (85...
October 31, 2017: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/29086988/the-electromechanical-substrate-for-response-to-cardiac-resynchronization-therapy-in-patients-with-right-bundle-branch-block
#14
Brett D Atwater, Galen S Wagner, Joseph Kisslo, Niels Risum
BACKGROUND: Some patients with RBBB may respond to Cardiac Resynchronization Therapy (CRT). However, little is known regarding the electromechanical substrate for CRT and whether this is the optimal pacing strategy. METHODS: This was a pilot prospective double crossover randomized controlled clinical study comparing ventricular back up pacing (VVI-40), RV fusion pacing (DDD-40, RV only), and biventricular (BIV) pacing (DDD-40 BIV) in 9 patients with RBBB and depressed EF...
October 31, 2017: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/29068499/changes-in-paced-signals-may-predict-in-hospital-cardiac-arrest
#15
Mina Attin, Spencer Rosero, Jimmy Ding, Scot Nolan, Rebecca Tucker
BACKGROUND: An increasing number of patients with chronic illnesses have implanted cardiac rhythm devices such as pacemakers and implantable cardioverter-defibrillators (ICD). This study was conducted to identify potentially useful predictors of in-hospital cardiac arrest (I-HCA) within paced electrocardiogram (ECG) signals from cardiovascular patients with implanted medical devices. METHODS: In this retrospective study of 17 subjects, full-disclosure ECG traces prior to the time of documented I-HCA were analyzed to determine R-R intervals and QRS durations (QRSd)...
October 25, 2017: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/29067703/red-cell-distribution-width-predicts-death-and-appropriate-therapy-in-patients-with-implantable-cardioverter-defibrillator-a-simple-measurement-with-prognostic-value-in-a-variety-of-diseases-may-help-in-better-selection-of-patients-who-will-benefit-the-most
#16
Saleem Dabbah, Leonid Chertin, Aehab Khateeb, Inna Rosenfeld, Mahmoud Suleiman, Majdi Halabi
BACKGROUND: Red cell distribution width (RDW) is a measure of the size variation of erythrocytes. Its prognostic value has been described in a variety of cardiac and non-cardiac diseases. Implantable cardioverter defibrillator (ICD) is useful in preventing sudden cardiac death in high risk patients, but many of these patients continue to survive without needing ICD therapy. We sought to examine whether RDW with its prognostic values, can benefit in risk stratification of patients with ICD by predicting death and ICD therapy, and thus help in selection of patients who will benefit the most from ICD, and minimizing its implantation in others at low risk of death and arrhythmias...
October 24, 2017: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/29064577/wearable-cardioverter-defibrillators-in-schools-a-guide-for-parents-and-educators
#17
Ashley E Burch, David S Spar, Samuel F Sears
Keeping children safe is a goal for everyone. To stay safe, some children need a wearable cardioverter defibrillator (WCD). WCDs protect individuals who are at risk for life-threatening arrhythmias. The LifeVest(®) (ZOLL, Pittsburgh, PA) is a WCD that identifies, records, and treats potentially life-threatening abnormal heartbeats, or arrhythmias. The WCD will provide electrical energy to the heart with up to five high energy shocks if a potentially dangerous cardiac arrhythmia is detected. This type of arrhythmia, if not treated within a short time period (less than 2 minutes), can result in disruption of blood flow to the brain and other vital organs (that is, a sudden cardiac arrest), and death can occur within minutes...
October 24, 2017: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/29064568/utility-of-preoperative-holter-monitoring-in-children-undergoing-extracardiac-conduit-fontan-operation
#18
Jun Sasaki, Michael M Lopez, Sherrie J Baysa, Ronald J Kanter, Anthony F Rossi
BACKGROUND: In patients undergoing extracardiac conduit Fontan (ECF) who require postoperative pacing, epicardial leads are usually required because of anatomical constraints. If indicated, these could be conveniently placed at the time of ECF. We have routinely performed ambulatory 24-hour Holter monitoring before ECF to determine the presence or absence of preoperative sinus node dysfunction, in attempt to avoid repeat sternotomy at a later time. METHODS: We performed a retrospective study of all patients undergoing ECF from January 2000 to December 2015...
October 24, 2017: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/29063628/first-case-of-brain-protection-in-out-of-hospital-cardiac-arrest
#19
Guoliang Li, Guy Hugues Fontaine
No abstract text is available yet for this article.
October 24, 2017: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/29052249/image-noise-reduction-technology-allows-significant-reduction-of-radiation-dosage-in-cardiac-device-implantation-procedures
#20
Rainer Hoffmann, Lukas Langenbrink, Doris Reimann, Mirlind Kastrati, Michael Becker, Michal Piatkowski, Jochen Michaelsen
BACKGROUND: Novel X-ray systems with real-time image noise reduction technology (INRT) to reduce radiation dose during fluoroscopy and cine acquisition have become available. This study evaluated the reduction of radiation dose in device implantation with INRT. METHODS: Radiation dose data from 132 consecutive new device implantation procedures (102 pacemaker (PM) or implantable cardioverter defibrillator (ICD) and 30 cardiac resynchronization therapy (CRT) devices) performed between 1-2015 and 12-2015 on an angiography system with INRT (Allura ClarityIQ) were collected...
October 20, 2017: Pacing and Clinical Electrophysiology: PACE
journal
journal
27332
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"