Syncope

Also: fainting · transient loss of consciousness · T-LOC · collapse

Syncope (transient loss of consciousness from reduced brain perfusion) ranges from benign vasovagal faints to serious cardiac causes. Risk-stratification tools help decide who needs admission and investigation.

The syncope risk rules and relevant pathways are gathered here.

Calculators & scores

San Francisco Syncope Rule

Syncope
EGSYS Score for Syncope

Syncope
San Francisco Syncope Rule (SFSR)

Risk Stratification
OESIL Score for Syncope

Syncope
ROSE Rule for Syncope

Syncope
Boston Syncope Criteria

Syncope
Canadian Syncope Risk Score

Syncope

Decision pathways

Syncope Assessment

ESC 2018 Syncope Guidelines; NICE NG109
Vasovagal Syncope (General Medicine)

NICE CG109; ESC 2018
Syncope / Transient Loss of Consciousness

NICE CG109; ESC 2018 Syncope
Amniotic Fluid Embolism

RCOG; UK AFE Register
Cyanide Poisoning

TOXBASE; UK NPIS

Drugs

Midodrine hydrochloride

α1 adrenergic agonist
Fludrocortisone

Mineralocorticoid
Fludrocortisone acetate

Mineralocorticoid
Midodrine

Alpha₁-Adrenergic Agonist (Vasopressor — Oral)
Midodrine (Intradialytic Hypotension)

Haemodialysis

Decision support only. These tools are aggregated by topic to aid navigation — always apply clinical judgement and the relevant national or local guideline.