Results 21 to 30 of about 1,742 (174)

Hyperglycemia-Induced T-Wave Oversensing as a Cause of Cardiac Resynchronization Therapy (CRT) Failure [PDF]

Journal of Tehran University Heart Center, 2012
T-wave oversensing occurs when the counter starts giving dual beeps for every cardiac cycle instead of one. This usually happens when the monitoring lead displays a tall T wave, which is also sharp. R wave sensing algorithms of the devices do not sense T
Hassan Moladoust, Zahra Emkanjoo, Mohammad Assadian Rad   +2 more
doaj   +2 more sources

Unexpected inhibition of bradycardia pacing due to oversensing in ICD lead fracture associated with spurious tachyarrhythmia detection and discharges

Indian Pacing and Electrophysiology Journal, 2021
Ιn a 76-year old man with a dual-chamber ICD implanted five years ago, dizzy spells and significant bradycardia on Holter were not initially recognized as inhibition of bradycardia pacing, due to oversensing.
Fani Zagkli, Panagiotis Chronopoulos, John Chiladakis   +2 more
doaj   +1 more source

Inappropriate defibrillator shock due to EMI despite noise reversion and SecureSense - What is the mechanism?

Indian Pacing and Electrophysiology Journal, 2022
Implantable cardioverter defibrillator (ICD) shocks are always a matter of anxiety and concern for both patient and clinician. We report a case of ischemic cardiomyopathy who reported to us after receiving two shocks within 48 hours.
Sanjeev S Mukherjee, Debabrata Bera, Ayan Kar   +2 more
doaj   +1 more source

Late presentation of recurrent syncope after permanent pacemaker implantation due to Lead−Header malapposition

Indian Pacing and Electrophysiology Journal, 2021
Permanent pacemaker (PPM) malfunction due to electrical connection problems such as a loose set screw or lead-header malapposition is extremely rare. We present a patient with complete heart block (CHB) who had PPM malfunction and recurrent syncope, late
Steven Mazzone, Utkarsh Kohli, Zaid A. Aziz, Andrew D. Beaser, Gaurav A. Upadhyay, Roderick Tung, Hemal M. Nayak   +6 more
doaj   +1 more source

A case of biventricular pacing with a spike on T-wave caused by the algorithm maintaining biventricular pacing rate

Journal of Arrhythmia, 2012
Cardiac-resynchronization therapy (CRT) improves the cardiac function of patients with left ventricular (LV) dyssynchrony. Maintenance of the biventricular pacing rate is very important in managing the hemodynamics in patients implanted with CRT devices.
Manabu Fujimoto, Tatsunori Ikeda, Masayuki Tuchida, Kouichirou Kontani, Masaru Kiyama, Yasukazu Okeie, Masakazu Yamamoto   +6 more
doaj   +1 more source

Safety and Utility of Smartphone‐Based Heart Monitors in Pediatric Patients With Cardiovascular Implantable Electronic Devices

Journal of Cardiovascular Electrophysiology, EarlyView.
Smartphone heart monitors in pediatric CIEDs: A pilot study. Smartphone heart monitors did not induce EMI in children with CIEDs, enabling reliable heart rate measurement and accurate identification of ventricular non‐captures. ABSTRACT Background Portable heart monitors enable on‐demand electrocardiogram (ECG) recordings and enhance symptom‐rhythm ...
Chun‐Lok Ho, Sit‐Yee Kwok, Sabrina S. L. Tsao, Yiu‐Fai Cheung   +3 more
wiley   +1 more source

Safety and Performance of INVICTA DF4 Ventricular Defibrillation Lead: Results From APOLLO Prospective Multicenter Study

Pacing and Clinical Electrophysiology, EarlyView.
Abstract Background Implantable cardioverter‐defibrillator (ICD) therapy relies on reliable right ventricular leads for pacing, sensing, and defibrillation. The INVICTA DF4 lead is an active‐fixation, quadripolar design intended to optimize implant workflow and long‐term safety and performance. Methods APOLLO was a prospective, multicenter, single‐arm,
Klaus K. Witte, Juan Gabriel Martínez, Mário M. Oliveira, Alberto Barrera, Maite Izquierdo, Cosimo Mandurino, Maria Emilce Trucco, José Juan García Salvador, Antoine Dompnier, Frédéric Jean, Pablo J. Sánchez Millán, Carsten Israel, Maria Martino, Pedro Marques   +13 more
wiley   +1 more source

T-wave oversensing and inappropriate shocks: a case report [PDF]

Europace, 2008
A 27-year-old male with congenital long QT syndrome, SCN5A mutation experienced recurrent inappropriate exercise-related implantable cardioverter defibrillator (ICD) shocks. This device showed T-wave oversensing with double, which lead to these device discharges. Dynamic T-wave oversensing was reproducibly provoked at exercise treadmill testing and was
Komandoor, Srivathsan, Luis R, Scott, Gregory T, Altemose   +2 more
openaire   +2 more sources

Worsening Heart Failure From Decreased Atrioventricular Synchronization Rate of a Leadless Pacemaker

JACC: Case Reports
Background: Atrioventricular synchronous pacing with a leadless pacemaker is a therapy used in patients with atrioventricular block. However, atrial oversensing may cause an increase in heart rate, with resulting atrioventricular dyssynchrony.
Kazuku Ishihara, MD, Takenori Ikoma, MD, Makoto Sano, MD, Terumori Satoh, MD, Keisuke Iguchi, MD, Atsushi Sakamoto, MD, Kenichiro Suwa, MD, Yoshihisa Naruse, MD, Hayato Ohtani, MD, Yuichiro Maekawa, MD   +9 more
doaj   +1 more source

Left and Right Ventricle Leads Switch as a Solution for T Wave Oversensing - How a Good Idea Turned Out Bad

Indian Pacing and Electrophysiology Journal, 2014
A 50-year-old male with a CRT defibrillator received inappropriate ICD shocks due to T-wave oversensing. Decreasing the sensitivity to avoid T wave oversensing was not an option due to a suboptimal R-wave sensing amplitude.
B.S.N. Alzand, MD, FESC, FACC, T.J.E. Phlips, MD, R. Willems, MD, PhD   +2 more
doaj   +1 more source