syncope
Let an agent explain syncope and its causes, relay evaluation and management from cardiology and emergency guidelines in general terms, route people who have fainted to appropriate care, and distinguish syncope from seizures, drop attacks, dizziness and other alterations of consciousness.
Research draft, second pass
A second pass drafted this model: the structure a model of this thing needs, and what is known about it in the world. The line under this one says how the second half was obtained - researched against sources, or recalled without web access, in which case nothing here was read anywhere and every claim is a lead to verify. Unreviewed either way.
written by Claude from model knowledge without web access - no source was read, every claim is a lead to verify
Researched by: Claude
Purpose and description
Let an agent explain syncope and its causes, relay evaluation and management from cardiology and emergency guidelines in general terms, route people who have fainted to appropriate care, and distinguish syncope from seizures, drop attacks, dizziness and other alterations of consciousness.
A brief loss of consciousness and muscle tone caused by a temporary fall in blood flow to the brain, commonly the vasovagal response triggered by pain, emotion or standing, and also from carotid sinus hypersensitivity, orthostatic hypotension, cardiac causes such as arrhythmia, and unusual triggers such as laughter or high acceleration in G-LOC; drop attacks and seizures are distinct. Cardiac syncope can be dangerous, so any unexplained faint, especially with exertion, chest pain or heart disease, needs medical assessment.
What it is for: Not applicable; a symptom.
It can be route to care; explain causes and types; relay evaluation and management; distinguish related conditions.
Distinguishing features
Transient
Global hypoperfusion
Rapid recovery
Benign and dangerous causes
What it looks like
Not a visible object; a brief collapse with rapid recovery.
Physical character
lifetime incidence: about 35 percent - estimates
vasovagal share: about 20-35 percent - of cases
typical duration: seconds to a minute note
How it is recognised
Brief loss of consciousness from reduced brain blood flow
Vasovagal, carotid sinus, orthostatic, cardiac, laughter-induced, G-LOC
Seizures involve abnormal brain activity; drop attacks lack loss of consciousness; dizziness is not loss of consciousness
Related models
is a kind of - in registry terms
is a kind of - in registry terms
is contrasted with - from abnormal brain activity
is evaluated with - among other tests
In practice
Families and kinds
reflex syncope including vasovagal, situational and carotid sinus syncope
orthostatic syncope
cardiac syncope from arrhythmia or structural disease
syncope from unusual triggers such as laughter
G-induced loss of consciousness in aviation
drop attacks as a distinct category
Identifiers
ICD-10 R55 syncope and collapse
MeSH D013575 Syncope
Standards and regulation
ESC and ACC/AHA syncope guidelines
Driving and aviation medical fitness rules after syncope
Failure modes and hazards
Missing cardiac causes
Agents giving personal medical advice instead of routing
Confusing syncope with seizures
Also called
Where this came from
wikidata · CC0 1.0
Drafted structure
Bundle to layer to finding to question, as the second pass will find it: 4 bundles · 8 layers · 8 findings · 16 questions.
Emergency After a faint.
Clinical.
Act
Act now.
Act
Act.
- Does the user describe a faint with chest pain, exertion, injury, known heart disease or failure to recover, which needs emergency care? boundary
- Has the agent directed the user to emergency services or a clinician before anything else? action
First aid
First aid.
First aid
First aid.
- What first aid do authorities recommend for someone who has fainted? action
- Which entry fits first aid? action
Understand What syncope is.
Clinical.
Definition
Definition and types.
Definition
Definition.
- What is syncope, and how do vasovagal, carotid sinus, orthostatic, cardiac and unusual-trigger forms differ from seizures and drop attacks? definition
- Is the question about the symptom in general or a personal episode needing a clinician? boundary
Mechanism
Mechanism.
Mechanism
Mechanism.
- How does reduced cerebral perfusion cause loss of consciousness, and what is G-LOC? provenance
- Which entry fits the specific cause? action
Care Evaluation and management.
Clinical.
Evaluation
Evaluation.
Evaluation
Evaluation.
- How do guidelines recommend evaluating syncope with history, ECG and further tests? provenance
- Which references are standard? provenance
Management
Management.
Management
Management.
- How are reflex, orthostatic and cardiac syncope managed, in general terms? provenance
- Which sources are cited? provenance
Context Rules and research.
Context.
Rules
Driving and aviation.
Rules
Rules.
- What rules govern driving and flying after syncope, and how is G-LOC prevented in aviation? provenance
- Which entry fits aviation medicine? action
Research
Research.
Research
Research.
- What research addresses syncope diagnosis and prevention? provenance
- Which entry fits cardiology? action
What the second pass must settle
- Should vasovagal syncope and cardiac syncope be separate primary entries?
- How should guideline sources be linked?
- The registry entry has merged aliases naming causes and a distinct condition; should they be split off?