Opthal: Orbital and Preseptal Cellulitis: Free MSRA Podcast

🎧FREE MSRA PODCAST –Orbital Cellulitis: Behind the Septum & Beyond 🧠👁️Inthis emergency-focused episode, we tackle Orbital Cellulitis,a sight-threatening condition every MSRA candidate needs to know. 🚨 From causes and key signs to life-saving management tips, thisrevision-friendly Deep Dive gives you everything you need in one fast-paced,exam-relevant session. 🧠What You’ll Learn inThis Episode:✅Definition &Overview• Orbital cellulitis = serious bacterial infection behind the orbital septum• Often arises fromsinusitis• Requires urgent hospital admission and IV antibiotics 🦠Causes & RiskFactors• Common pathogens: Strep pneumoniae, Staph aureus, Haemophilusinfluenzae• Triggers: Sinusitis, dental infections, trauma, surgery• Risk groups: Children (7–12y), unvaccinated (HiB), diabetic,post-URI• Memory aid: HYIB = Higher Risk• Beware: MRSA and mucormycosisin immunocompromised patients 📊Epidemiology Clues• 0.3–0.6 per 100,000 in the UK• More frequent in winter months• More common in boys than girls 👁️Symptoms &Clinical Signs – Use the Mnemonic: POPR• Proptosis (bulging eye)• Ophthalmoplegia (pain/difficulty moving eye)• Pain on movement• Reduced visionAlso look for:•Fever 🤒• Chemosis(conjunctival swelling)• Lid erythema andoedema• RAPD (if opticnerve involved)🆚Distinguish fromPreseptal Cellulitis:• No POPR signs• Normal vision• No proptosis orophthalmoplegia 🧪Investigations• 🩸 Bloods: FBC, CRP, ESR• 🧠 CT scan with contrast: to assess orbit, sinuses, and rule out abscess• 🧫 Microbiology: blood cultures, swabs• Consider MRI if concerned about Cavernous Sinus ThrombosisMnemonics:🧪CT to see behind theseptum & sinuses🧫Cultures to catch theculprit bacteria 💊Management Overview🚨Urgent hospitaladmission💉IV antibiotics:• First line: Co-amoxiclav• Penicillinallergy: Clindamycin + Metronidazole• If MRSA suspected:Add IV Vancomycin🔬Ophthalmology + ENTreview essential🔁 Monitor vision, colour, brightness perceptiondaily🔪Surgery if:• Abscess present• No improvementafter 48h• Worsening visualacuity 📉Complications• Optic neuropathy, exposure keratopathy, globe rupture• Orbital abscess, subperiostealabscess• Cavernous sinus thrombosis• Meningitis, brainabscess, vision loss💡 Mnemonic: POPR = Orbit Alert 🩺Prevention Tips• 📅 Hib vaccination• 🤧 Treat sinusitis early• 🧼 Hygiene and proper wound care after trauma 📚Orbital CellulitisResources for MSRA:📝 Revision Notes:https://www.passthemsra.com/topic/orbital-cellulitis-revision-notes/🧠 Flashcards:https://www.passthemsra.com/topic/orbital-cellulitis-flashcards/📖 Accordion Q&A Notes:https://www.passthemsra.com/topic/orbital-cellulitis-accordion-qa-notes/🎯 Rapid Quiz:https://www.passthemsra.com/topic/orbital-cellulitis-rapid-quiz/🎓 MSRA Quiz Link:https://www.passthemsra.com/quizzes/orbital-cellulitis/ 📎 More MSRA resources to accompany this episode:🌐https://www.passthemsra.com🎁https://www.freemsra.com Hashtags#MSRA #MSRARevision#OrbitalCellulitis #MSRAOphthalmology #MSRAFlashcards #MSRAQuiz #MSRATextbook#PassTheMSRA #FreeMSRA #PreseptalVsOrbital #OphthalmologyEmergency #POPRSigns