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Article History

Received: 18 November 2025

Accepted: 30 January 2026

First Online: 6 February 2026

Declarations

:

: The study was approved by the Regional Committee for Medical and Health Research Ethics for south-east Norway (Reference number 621459) and the institutional data protection officer at Ahus. Since the patients were deceased, informed passive consent was obtained from the next of kin. Written information about the study was sent to the next of kin, who were given the opportunity to decline participation on behalf of the patient. No patients were included if the next of kin opted out. The study was conducted in accordance with the ethical principles outlined in the Declaration of Helsinki.

: Not applicable.

: The authors declare no competing interests.