Resp: Pneumocystis Pneumonia: Free MSRA Podcast

🦠FREE MSRA PODCAST –Pneumocystis Pneumonia (PCP)One of the most important opportunistic infections toknow – especially in immunocompromised patients. 🧠Key Learning Points 📌Definition• PCP = fungal pneumonia caused by Pneumocystis jirovecii• It’s an AIDS-defining illness and affects other immunocompromised individuals (transplant,cancer, steroids) 📌Causes & RiskFactors• Inhaled fungalspores in those with weakened immunity• 🚩 Risk groups: – CD4 < 200(HIV/AIDS) – Organ transplantrecipients – Patients on immunosuppressants (e.g. steroids) – Haematologicalmalignancies – Congenitalimmunodeficiencies – Severemalnutrition🎯 Mnemonic: H.O.M.I.E.S. –HIV, Organ transplant, Malignancy (blood), Immunosuppressants,Elderly/Encephalopathy, SCID 📌Symptoms• 🫁 Progressive dyspnoea, dry cough, fever• Often insidious onset over days to weeks• Hypoxia, especially with exertion• ⚠️May present with pneumothorax, cyanosis, or respiratory failure 📌Diagnosis🩻CXR: Bilateral interstitial infiltrates (can besubtle)🖥️CT chest: Ground-glass opacities (more sensitive)🧪Respiratory sample: Sputum or BAL for PCR orstaining💉LDH raised, hypoxia on ABG, β-D-glucan (supportive), ↓ DLCOon PFTs🧪Exercise desaturation may be revealing 📌Differentials• Viral or bacterialpneumonia• TB, fungalinfections (histoplasmosis, aspergillosis)• CMV, Kaposisarcoma• PE, LIP, ARDS 📌Management💊1st-line: High-dose Co-trimoxazole (TMP-SMX)💉 Severe disease → IV therapy + corticosteroids (especially in HIV)🧴 Alternatives: Atovaquone, Dapsone+TMP,Clindamycin+Primaquine🧪 Start ART for HIV ifnot already on it 📌Prophylaxis• All patients with CD4 < 200 or high-risk immunosuppression• 🛡️ Co-trimoxazole daily or 3x/week• Can stop when CD4> 200 for >3 months with ART 📌Complications☠️ Respiratory failure💥 Pneumothorax🔥 ARDS🦠 Superimposed bacterial infection🫁 Lung cysts🩸 Rare haematogenous spread (liver, bone marrow,eyes) 📎More MSRA Resourceson PCP:📝 Revision Notes: https://www.passthemsra.com/topic/pneumocystis-pneumonia-revision-notes/🧠 Flashcards: https://www.passthemsra.com/topic/pneumocystis-pneumonia-flashcards/💬 Accordion Q&A Notes: https://www.passthemsra.com/topic/pneumocystis-pneumonia-accordion-qa-notes/🚀 Rapid Quiz: https://www.passthemsra.com/topic/pneumocystis-pneumonia-rapid-quiz/🎓 Full Respiratory Course: https://www.passthemsra.com/courses/respiratory-for-the-msra/ Hashtags#MSRA #MSRARevision#PneumocystisPneumonia #PCP #MSRAFlashcards #RespiratoryMSRA #CoTrimoxazole#NICEGuidelines #HIVMedicine #MultiSpecialityRecruitmentAssessment#MSRAQuestionBank #MSRAAccordions