Publications by authors named "Wyatt Stahl"
Article Synopsis
- Transvenous implantable cardioverter-defibrillator (ICD) shocks can lead to increased cardiac biomarkers and potential heart damage due to high voltage gradients, but data comparing these effects to subcutaneous ICDs (S-ICD) is limited.
- A study used magnetic resonance imaging (MRI) to create a model comparing voltage gradients from S-ICDs and various transvenous ICD types, focusing on high gradients greater than 100 V/cm.
- Results showed that S-ICDs produced smaller and more uniform voltage gradients in the heart, indicating lower risk of damage compared to transvenous ICDs, especially those with dual coils or closer coil positioning.
Magnetic field interactions between current consumer electronics and cardiac implantable electronic devices.
J Interv Card Electrophysiol
October 2022
Background: Electronic products, including the iPhone 12, Apple Watch Series 6, and 2nd Generation AirPods, contain magnets to facilitate wireless charging. Permanent magnets may affect CIED magnet mode features by causing pacemakers to pace asynchronously and defibrillators to suspend arrhythmia detection. This study determined if CIEDs are affected by static magnetic fields from commonly used portable electronics (PE) at any distance and intends to reinforce FDA recommendations concerning consumer PE which contain permanent magnets.
View Article and Find Full Text PDFBackground: The ability to predict defibrillation efficacy at the time of subcutaneous implantable cardioverter-defibrillator implantation without the need to induce ventricular fibrillation might eliminate the need for defibrillation testing. The purpose of this study was to determine the association of high-voltage impedance and system implant position on ventricular fibrillation conversion success with a submaximal 65-J shock.
Methods: In the subcutaneous implantable cardioverter-defibrillator IDE study (Investigational Device Exemption), a successful conversion test required 2 consecutive ventricular fibrillation conversions at 65 J in either shock vector.
Objectives: This study determined the impact of subcutaneous implantable cardioverter-defibrillator (S-ICD) coil and generator position on defibrillation threshold (DFT).
Background: S-ICD implantation can occasionally result in unacceptably high DFT. Implant position characteristics associated with high DFTs in S-ICD patients have not been fully elucidated.