Digital public defence: Stein Ove Danielsen

Master in Clinical Nursing Science Stein Ove Danielsen at Institute of Clinical Medicine will be defending the thesis Optimising patient discharge and follow-up after surgical aortic valve replacement to reduce readmissions and improve patient-reported outcomes for the degree of PhD (Philosophiae Doctor). 

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The public defence will be held as a video conference over Zoom.

The digital defence will follow regular procedure as far as possible, hence it will be open to the public and the audience can ask ex auditorio questions when invited to do so.

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Adjudication committee

  • First opponent: Professor Lars Wallin, Dalarna University, Sweden
  • Second opponent: Dean Paul Herijgers, KU Leuven, Belgium
  • Third member and chair of the evaluation committee: Associate Professor Kristina Haugaa, Institute of Clinical Medicine, University of Oslo

Chair of defence

Professor II Erik Fosse, Institute of Clinical Medicine, University of Oslo

Principal supervisor

Clinical Researcher Irene Lie, Oslo University Hospital


The 30-day all-cause readmission (30-DACR) rate has been reported to be up to 25% 
following surgical aortic valve replacement (SAVR). Telephone support after hospital 
discharge has demonstrated a potential reducing effect on the 30-DACR rate in general. 
No complex telephone support, including a 24/7 service, has tested its effect on the 
30-DACR following SAVR. 

We performed a meta-analysis on the 30-DACR incidence, and included 288 participants 
in a randomized controlled trial to test the effect of the complex telephone support on the 
30-DACR, health-related quality of life (HRQoL) and symptoms of anxiety and depression. 
A process evaluation with mixed methods investigated the implementation of the 
intervention and how the participants perceived the clinical trial.

We did not demonstrate a significant effect on the 30-DACR rate following SAVR, neither 
on HRQoL or symptoms of depression. However, we yielded a significant effect on symptoms of anxiety one month after surgery. The intervention was well implemented, and it was 
perceived as safe and highly satisfactory. Moreover, these findings support the effect 
on symptoms of anxiety after hospital discharge. 

Our findings demonstrate that a complex telephone support does not reduce readmissions 
after SAVR, but can reduce symptoms of anxiety and support the SAVR patients in 
promoting their health after hospital discharge. A process evaluation with mixed methods 
was useful in extending our understanding of the clinical trial.

Additional information

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Published June 4, 2020 12:05 PM - Last modified June 19, 2020 2:25 PM