Publications by authors named "HENRIKSON C"

Background: Safe and effective management of venous vascular access is a key component of electrophysiology (EP) procedures. Recently, the Z-stitch method has been developed for effective venous hemostasis. However, the standard postprocedure protocol often includes prolonged bed rest, which may affect patient satisfaction.

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Article Synopsis
  • The study aimed to compare risk factors for monomorphic ventricular tachycardia (MMVT) and polymorphic ventricular tachycardia/ventricular fibrillation (PVT/VF) in patients, indicating MMVT ablation can reduce shock frequency and enhance survival.
  • A cohort of 2,668 patients was analyzed using Cox models to adjust for demographic and clinical factors, with significant associations found between MMVT risk and various electrocardiogram metrics.
  • The research developed predictive models for MMVT and PVT/VF, achieving high accuracy in identifying high-risk patients, which can assist in procedural planning for better patient outcomes.
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Background: Lead dwell time is the single strongest predictor of failure and complications in transvenous lead extraction.

Objectives: To report the success rate and complications of transvenous lead extractions with implant dwell time of at least 15 years.

Methods: Procedural and patient data were prospectively collected into a database.

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Background: During the COVID-19 pandemic, professional societies recommended deferral of elective procedures for optimal resource utilization.

Objective: We sought to assess changes in procedural trends and outcomes of electrophysiology (EP) procedures during the pandemic.

Methods: National Inpatient Sample databases were used to identify all EP procedures performed in the United States (2016-2020) by International Classification of Diseases, Tenth Revision codes.

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Background: The impact of lead fixation mechanism on extractability is poorly characterized.

Objective: We aimed to compare the technical difficulty of transvenous lead extraction (TLE) of active vs passive fixation right ventricular (RV) leads.

Methods: A total of 408 patients who underwent RV TLE by a single expert electrophysiologist at Oregon Health & Science University between October 2011 and June 2022 were identified and retrospectively analyzed; 331 (81%) had active fixation RV leads and 77 (19%) had passive fixation RV leads.

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Background: Previous studies demonstrated that accelerometer-based, mechanically timed atrioventricular synchrony (AVS) is feasible using a leadless ventricular pacemaker.

Objective: The purpose of this study was to determine the performance of a leadless ventricular pacemaker with accelerometer-based algorithms that provide AVS pacing.

Methods: AccelAV was a prospective, single-arm study to characterize AVS in patients implanted with a Micra AV, which uses the device accelerometer to mechanically detect atrial contractions and promote VDD pacing.

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Background Ventricular arrhythmias (VAs) and their treatment have been associated with psychological distress and diminished quality of life (QOL). We administered a battery of patient-reported outcome measures (PROMs) to patients seeing an electrophysiologist and psychologist in a multidisciplinary VA clinic for patients referred for consideration of catheter ablation for sustained VAs or implantable cardioverter-defibrillator therapies. Methods and Results In this retrospective study of the initial VA clinic visit, we analyzed PROMs of: anxiety and depression symptoms, visual analog scales for physical health status and quality of life, cardiac anxiety, implantable cardioverter-defibrillator acceptance, and implantable cardioverter-defibrillator shock anxiety.

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Background: Prompt differential diagnosis of wide QRS complex tachycardia (WCT) is crucial to patient management. However, distinguishing ventricular tachycardia (VT) from supraventricular tachycardia (SVT) with wide QRS complexes remains problematic, especially for nonelectrophysiologists.

Objectives: This study aimed to develop a simple-to-use algorithm with integration of clinical and electrocardiographic (ECG) parameters for the differential diagnosis of WCT.

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Article Synopsis
  • Cardiac resynchronization therapy (CRT) shows potential benefits in patients with permanent atrial fibrillation (AF) but limited data exists on its effectiveness, leading to the investigation of atrio-ventricular junctional ablation (AVJA).
  • A study involving 26 patients randomized to receive CRT-D with or without AVJA found no significant difference in left ventricular end-systolic volume (LVESV) improvement between the two groups at 6 months.
  • Although AVJA didn't appear to enhance outcomes, CRT demonstrated effectiveness overall in improving left ventricular ejection fraction (LVEF) and functional class among patients with AF.
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Background: Adaptive cardiac resynchronization therapy (aCRT) is known to have clinical benefits over conventional CRT, but the mechanisms are unclear.

Objective: Compare effects of aCRT and conventional CRT on electrical dyssynchrony.

Methods: A prospective, double-blind, 1:1 parallel-group assignment randomized controlled trial in patients receiving CRT for routine clinical indications.

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