Review decision date: October 2014

Review decision: 

  • Following the recent surveillance review which checks the need to update CG109, this guideline should not be updated at this time and the guidance should be transferred to the static list. Guidelines on the static list will remain extant and will be checked for the need for an update at 5-year intervals, or if new evidence emerges.

Next review date: October 2019

This guideline offers evidence-based advice on the assessment, diagnosis and specialist referral of adults and young people (aged 16 and older) who have experienced transient loss of consciousness ('blackouts' or TLoC for short).

This guideline was previously called transient loss of consciousness ('blackouts') management in adults and young people.

Your responsibility

The recommendations in this guideline represent the view of NICE, arrived at after careful consideration of the evidence available. When exercising their judgement, professionals are expected to take this guideline fully into account, alongside the individual needs, preferences and values of their patients or service users. The application of the recommendations in this guideline is not mandatory and the guideline does not override the responsibility of healthcare professionals to make decisions appropriate to the circumstances of the individual patient, in consultation with the patient and/or their carer or guardian.

Local commissioners and/or providers have a responsibility to enable the guideline to be applied when individual health professionals and their patients or service users wish to use it. They should do so in the context of local and national priorities for funding and developing services, and in light of their duties to have due regard to the need to eliminate unlawful discrimination, to advance equality of opportunity and to reduce health inequalities. Nothing in this guideline should be interpreted in a way that would be inconsistent with compliance with those duties.

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