Neuro: Cluster Headaches: Free MSRA Podcast

💥 FREE MSRA PODCAST – Cluster Headache: The ‘Suicide Headache’ Explained🎧 Unpack the most excruciating primary headache in medicine: high-yield facts, pitfalls, and how to get the diagnosis and management right first time.🧠 Key Learning Points📌 Definition• Cluster headache = severe, unilateral (one-sided) headache disorder• Attacks occur in “clusters”: frequent bouts (1–8 per day), lasting 15–180 mins, for weeks–months, with pain-free remissions• Nicknamed the “suicide headache” due to intensity📌 Causes & Risk Factors• Thought to involve hypothalamic dysfunction (body clock), trigeminal nerve activation, neurovascular changes• Risk factors: Male (3–4:1), age 20–50, family history, smokers, alcohol triggers attacks (esp. during cluster periods)📌 Pathophysiology• Dysfunction in hypothalamus (circadian rhythm) → activates trigeminal–autonomic reflex• Causes release of neuropeptides → vasodilation, neuroinflammation• Pain & autonomic symptoms occur on the same side as the headache📌 Symptoms• Sudden, severe, unilateral orbital/temporal pain• Associated ipsilateral autonomic features: – Red, watery eye (conjunctival injection, lacrimation) – Nasal congestion/rhinorrhoea – Ptosis (droopy eyelid), miosis (small pupil) – Forehead/facial sweating• Patients are restless/agitated (pacing/rocking, not lying still like migraine)• Attacks at same time daily (“alarm clock headache”)📌 Diagnosis• Clinical diagnosis: ≥5 attacks, 15–180 mins, severe unilateral orbital/supraorbital/temporal pain, with ≥1 autonomic sign or restlessness• Frequency: 1 every other day to 8/day• Rule out other causes (MRI if red flags or atypical features)📌 Differential Diagnosis• Migraine, paroxysmal hemicrania, SUNCT, tension-type headache, sinusitis, TMJ dysfunction📌 Management• Acute: – High-flow O₂ (12–15 L/min via non-rebreather mask) – Subcutaneous sumatriptan (75% effective within 15 mins) – Nasal triptan or intranasal lidocaine (adjunct)• Preventive: – Verapamil (first line, needs ECG monitoring) – Alternatives: lithium, prednisolone, topiramate• Avoid triggers (esp. alcohol), refer to neurology, support groups/counselling📌 Complications• Severe impact on quality of life (sleep, work, mood, relationships)• Risk of depression, suicidal ideation• Medication side effects (verapamil, lithium, triptans)• Chronic form may develop (10–20%), resistant cases possible📌 Prognosis• Most have episodic CH (80–90%) with long remissions• Chronic in 15–20%; ~10–20% of these may not respond to standard treatment• Many improve with age, longer remission periods; some “burn out” after ~15 years📎 More MSRA Resources for Cluster Headache:📝 Revision Notes: https://www.passthemsra.com/topic/cluster-headache-revision-notes/🧠 Flashcards: https://www.passthemsra.com/topic/cluster-headache-flashcards/💬 Accordion Q&A: https://www.passthemsra.com/topic/cluster-headache-accordion-qa-notes/🚀 Rapid Quiz: https://www.passthemsra.com/topic/cluster-headache-rapid-quiz/🎓 Neurology Course: https://www.passthemsra.com/courses/neurology-for-the-msra/#ClusterHeadache #SuicideHeadache #MSRARevision #NeurologyMSRA #MSRAFlashcards #MSRAQuiz #PassTheMSRA #MSRAPodcast #PrimaryHeadache #Verapamil #Sumatriptan #HighFlowOxygen #TrigeminalCephalalgia #AlarmClockHeadache