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Dissertation Tove Elizabeth Hunt

On October 17, MD and ProCardio research fellow Tove Elizabeth Hunt defended her thesis “Patients with atrial fibrillation and obstructive sleep apnea: Impact of continuous airway pressure treatment” for the degree of Philosophiae Doctor at the Institute of Clinical Medicine, University of Oslo (UiO). The trial lecture was titled “The interrelation between atrial fibrillation burden and obstructive sleep apnea: Impact of lifestyle modification and continuous airway pressure treatment”

Published 10/8/2025
Last updated 11/18/2025
Portrait photo of Tove Elizabeth Hunt
Tove Elizabeth Hunt defended her thesis at Rikshospitalet on October 17.

Public defence: Tove Elizabeth Francés Hunt - Institute of Clinical Medicine (UiO)

Tove posing with her supervisors and committee members.

Photo: Siri Holm Solberg

Tove Elizabeth Hunt, supervisors and adjudication committee. From left to right, Lars Fjellbirkeland, Carina Blomström-Lundqvist, Tove, Jørgen Gravning, Ole-Gunnar Anfinsen and Lars Gullestad.

Adjudication committee

  • First opponent: Professor Carina Blomström-Lundqvist, Uppsala University, Sweden
  • Second opponent: Associate Professor Sverre Lehmann, University of Bergen, Norway
  • Third member and chair of the evaluation committee: Professor Jørgen Gravning, University of Oslo

Chair of the Defence

  • Associate Professor Lars Fjellbirkeland, University of Oslo

Supervisors

  • Main supervisor: Senior Consultant Ole-Gunnar Anfinsen, Oslo University Hospital
  • Co-supervisor: Professor Kristina Haugaa, University of Oslo
  • Co-supervisor: Professor Lars Gullestad, University of Oslo

Summary

Atrial fibrillation (AF) is the most common sustained arrhythmia, while obstructive sleep apnea (OSA) is a frequent and often underdiagnosed comorbidity. Both conditions are associated with increased risk of stroke, heart failure, and death, yet their interplay remains insufficiently understood. Continuous positive airway pressure (CPAP) is the established treatment for OSA, but its role in AF has been unclear. This doctoral thesis presents the first randomised controlled trial to systematically investigate CPAP therapy in patients with AF and OSA, both before and after catheter ablation with pulmonary vein isolation (PVI) for AF. Continuous rhythm monitoring with implantable loop recorders and carefully measured CPAP adherence enabled detailed assessment of AF burden, recurrence after ablation, cardiac remodelling, and inflammatory mechanisms. The work provides novel insights into the relationship between OSA and AF and represents a significant scientific advance in the field.