Hannah Schwennesen

Journal article J Cardiovasc Electrophysiol · September 2026 BACKGROUND: Atrial tachyarrhythmias frequently recur after surgical ablation and often require catheter ablation (CA). METHODS: We conducted a retrospective cohort study of patients who underwent CA for symptomatic atrial fibrillation or flutter (AF hereaf ... Full text Link to item Cite

Long-term editing of brain circuits using an engineered electrical synapse.

Journal article Nature · July 2026 Electrical signalling across distinct populations of brain cells underpins cognitive and emotional function. However, approaches that selectively regulate electrical signalling between two cellular components of a mammalian neural circuit remain sparse. He ... Full text Link to item Cite

Utilisation of ambulatory ECG monitoring for prediction of heart failure and stroke events and healthcare expenditure in treated and untreated patients: a retrospective cohort study.

Journal article BMJ Open · September 22, 2025 OBJECTIVE: We evaluated the performance of risk models that incorporate ambulatory ECG data and clinical information for prediction of healthcare expenditures related to heart failure (HF) and stroke events in treated and untreated patients. DESIGN AND SET ... Full text Link to item Cite

Characterization and Localization of Focal Atrial Tachycardia in Patients With Adult Congenital Heart Disease.

Journal article JACC Clin Electrophysiol · January 2025 BACKGROUND: In patients with structurally normal hearts, algorithms using surface electrocardiographic P-wave morphology are helpful to predict focal atrial tachycardia (FAT) location. However, these algorithms have not been formally assessed in patients w ... Full text Link to item Cite

Performance of Ambulatory Electrocardiographic Data for Prediction of Stroke and Heart Failure Events.

Journal article JACC Adv · November 2024 BACKGROUND: Despite clear associations between arrhythmia burden and cardiovascular risk, clinical risk scores that predict cardiovascular events do not incorporate individual-level arrhythmia characteristics from long-term continuous monitoring (LTCM). OB ... Full text Link to item Cite

A pilot study of longitudinal changes in neurocognition, white matter hyperintensities, and cortical thickness in atrial fibrillation patients following catheter ablation vs medical management.

Journal article Heart Rhythm O2 · February 2024 BACKGROUND: Cerebral microembolization and atrophy complicate atrial fibrillation (AF). OBJECTIVES: We aimed to compare changes in neuroimaging findings between AF patients treated with catheter ablation and those treated with medical therapy. METHODS: In ... Full text Link to item Cite

Evaluation of organized atrial arrhythmias after cryptogenic stroke

Journal article Heart Rhythm O2 · January 1, 2024 Background: Long-term rhythm monitoring to detect atrial fibrillation (AF) following a cryptogenic stroke (CS) is well established. However, the burden of organized atrial arrhythmias in this population is not well defined. Objective: The purpose of this s ... Full text Cite

Ablation to Reduce Atrial Fibrillation Burden and Improve Outcomes: JACC Review Topic of the Week.

Journal article J Am Coll Cardiol · September 5, 2023 Atrial fibrillation is the most common atrial arrhythmia and accounts for a significant burden of cardiovascular disease globally. With advances in implanted and wearable cardiac monitoring technology, it is now possible to readily and accurately quantify ... Full text Link to item Cite

Building a Community Based Mental Health Program for Adolescents in Botswana: Stakeholder Feedback.

Journal article Community mental health journal · August 2022 BackgroundWhen planning interventions for adolescents, adult interventions should not be used 'as is' in youth settings. Stakeholder engagement can help understand the overall adolescent mental health ecosystem and adapt existing evidence-based in ... Full text Cite

Acute Cerebrovascular Events in Hospitalized COVID-19 Patients.

Journal article Stroke · September 2020 Background and purposeInitial reports suggest a significant risk of thrombotic events, including stroke, in patients hospitalized with coronavirus disease 2019 (COVID-19). However, there is little systematic data on stroke incidence and mechanisms ... Full text Cite