Subarachnoid Haemorrhage- causes : simple mnemonic for USMLE, NEET PG, NCLEX

Main ideas / lesson conveyed

Definition of subarachnoid hemorrhage (SAH)

• Subarachnoid hemorrhage (SAH) refers to the deposition/collection of blood beneath the arachnoid mater of the brain (within the meninges).
• On cross-sectional imaging, SAH blood can appear as “saut” hemorrhage, described in the subtitles as white, tracing/line-like collections along the “celleside” (likely a rough/auto-captioned reference to surface/space-related locations around brain contours).

High-yield cause mnemonic for exams

• A commonly used mnemonic for SAH causes (USMLE, NEET PG, NCLEX) is:
  • “BA N U R S T”

Cause mnemonic (detailed mapping)

• B = Berry aneurysm
• A = Aneurysm-related / vascular malformations
  • Subtitles appear to mention “arteriovenous malformations” (AVMs) (and/or related adult vascular causes), though the exact wording is unclear due to captioning.
  • Likely intended items include:
    • Arteriovenous malformations (AVMs)
• U = Polycystic kidney disease
  • Subtitles explicitly include polycystic kidney disease.
• N / O = unclear due to caption errors
  • The subtitles contain a fragment resembling “onet”, but the intended mapping is not reliably recoverable from the excerpt.
• S = Stroke
• T = Trauma

Overall takeaway: The common SAH causes emphasized are berry aneurysm, AVMs, polycystic kidney disease, stroke, and trauma.

Speakers / sources featured

• No specific speaker or source is identified in the provided subtitles excerpt.