Surg: Subarachnoid Hemorrhage: Free MSRA Podcast

⚡️ Subarachnoid Haemorrhage (SAH): “Thunderclap Headache” Deep Dive 🧠Ever had a headache hit like lightning? That’s the classic sign of SAH—and today’s quick-fire revision hits all the must-know points for your MSRA or finals! Let’s break it down.Subarachnoid haemorrhage is bleeding into the space between your brain and its inner coverings (subarachnoid space), usually from a ruptured aneurysm (bulging artery wall).Other causes: trauma, AVMs, rare vascular issues, drugs (cocaine).Berry aneurysm rupture (most common)TraumaAVMs (arteriovenous malformations)Drugs (cocaine/amphetamine)Risks: High BP, smoking, family history, PKD, connective tissue disease, female sex, age 40–60Mnemonic: “SAH is BAD”Berry aneurysm, AVM, DrugsThunderclap headache (“worst ever”)Neck stiffnessNausea/vomitingPhotophobia↓ Consciousness, seizures“Sentinel” warning headaches before major bleedCT head (no contrast): within 6h is bestIf CT negative: Lumbar puncture after 12h (look for xanthochromia)Find aneurysm: CTA or DSAStabilise: ABCs, neurosurgery ASAPNimodipine: prevents vasospasmSecure aneurysm:Coiling (endovascular, most common)Clipping (surgery)Manage: BP, hydrocephalus (drain), seizures, sodium levelsRebleed (highest risk early, high mortality)Vasospasm (delayed stroke, days 3–14)Hydrocephalus (needs CSF drainage)Seizures, cognitive problems, long-term disabilityCardiac issues, hyponatraemia6/100,000/year (UK)30% die in 24h, 45% overallMost aged 40–70, women > men85% of spontaneous SAH = aneurysmSentinel headache: watch for “warning leaks”Sudden severe headache = think SAHCT in 6h, LP at 12h if neededSecure aneurysm, prevent vasospasmRebleed & vasospasm = big killersEarly diagnosis saves lives!Revision Notes:https://www.passthemsra.com/topic/subarachnoid-haemorrhage-revision-notes/Flashcards:https://www.passthemsra.com/topic/subarachnoid-haemorrhage-flashcards/Accordion Q&A:https://www.passthemsra.com/topic/subarachnoid-haemorrhage-accordion-qa-notes/Rapid Quiz:https://www.passthemsra.com/topic/subarachnoid-haemorrhage-rapid-quiz/Full Quiz:https://www.passthemsra.com/quizzes/subarachnoid-haemorrhage/More:https://www.passthemsra.comhttps://www.freemsra.com#MSRA #SAH #ThunderclapHeadache #NeuroRevision #PassTheMSRA #FreeMSRA #BerryAneurysm #MedicalPodcast #GPExamPrep 🧠⚡️🩸 What is SAH?🚨 Causes & Risk Factors⚡️ Presentation & Symptoms🔬 Diagnosis💉 Management⚠️ Complications📊 Key Stats📝 Quick Recap📚 Top Revision Links