Impact of Transcatheter Aortic Valve Implantation (TAVI) on Cognitive Functions (KogniTa)

  • End date
    Dec 1, 2023
  • participants needed
  • sponsor
    Helios University Hospital Wuppertal
Updated on 4 October 2022


Interventional implantation of the aortic valve (Transcatheter Aortic Valve Implantation; TAVI) may alter neurocognitive functions. We aim to differentiate the changes in cognitive functions after a TAVI.


Interventional implantation of the aortic valve (Transcatheter Aortic Valve Implantation; TAVI) is the treatment of choice for patients with symptomatic aortic valve stenosis >75 years with comorbidities. The reduction in complications and also in mortality after TAVI is due, among other things, to the constant further development of TAVI devices but also to improved implantation technologies. Nevertheless, neurological complications are rare but of relevant impact. These are a.e. due to the passage of the TAVI system into an aorta that is often burdened with atheromatous plaques or the necessity to predilate the calcified aortic valve. Studies using cerebral magnetic resonance imaging (MRI) show that the vast majority of patients after TAVI had lesions in the brain that correspond to at least minimal cerebral infarction. Even if these are asymptomatic, various studies have shown that initially asymptomatic infarcts may be associated with an increased incidence of dementia and cognitive impairment, as well as being predictors of later symptomatic infarctions. Changes in hemodynamics after removal of the aortic stenosis could, on the other hand, improve neurocognitive function. Interestingly, the standard methods primarily investigate motor deficits, while neurocognitive function were currently not tested. The influence of a TAVI on the latter functions is therefore unknown. In this study, we aim to differentiate the changes in cognitive functions after a TAVI immediately after the procedure and after 6 months.

Condition Cognition Disorder
Treatment Transcatheter aortic valve implantation (TAVI)
Clinical Study IdentifierNCT05464472
SponsorHelios University Hospital Wuppertal
Last Modified on4 October 2022


Yes No Not Sure

Inclusion Criteria

planned TAVI implantation
Age ≥ 60
Intelligence quotient > 80
Sufficient knowledge of German
Normal or corrected vision and hearing

Exclusion Criteria

Serious neurological or psychiatric diseases that make participation in the trial procedure impossible
Oncological disease with a life expectancy < 12 months
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