Definition of Implanted Neurological Device Abandonment: A Systematic Review and Consensus Statement.

Importance: Establishing a formal definition for neurological device abandonment has the potential to reduce or to prevent the occurrence of this abandonment.

Objective: To perform a systematic review of the literature and develop an expert consensus definition for neurological device abandonment.

Evidence Review: After a Royal Society Summit on Neural Interfaces (September 13-14, 2023), a systematic English language review using PubMed was undertaken to investigate extant definitions of neurological device abandonment.