🫀 FREE MSRA PODCAST – Atrioventricular (AV) Block: Types, Causes, and ECG Pearls
Today’s deep dive is all about heart block, also known as AV block — a classic MSRA topic!
Learn to distinguish the three types, understand the underlying mechanisms, and lock in the essential ECG patterns with memory tricks and clinical context.

🧠 Episode Summary:

🔌 What is AV Block?
A conduction abnormality where electrical signals from the atria to the ventricles are delayed or blocked.
Can be mild and silent or life-threatening depending on the degree.

⚡ **The Three Degrees (Mnemonic: “1 is slow, 2 drops, 3 disconnects”):
1️⃣ First-Degree:
 • Constantly prolonged PR interval >0.2s
 • Usually asymptomatic
 • Often doesn’t need treatment

2️⃣ Second-Degree (Mobitz Type I – Wenckebach):
 • Progressive PR lengthening → dropped beat
 • Mnemonic: Wenckebach walks away
 • Often benign but may cause symptoms

2️⃣ Second-Degree (Mobitz Type II):
 • Fixed PR interval with sudden dropped QRS
 • More serious — risk of progression to complete block
 • Needs pacemaker

3️⃣ Third-Degree (Complete AV Block):
 • No relationship between P waves and QRS
 • Atria and ventricles beat independently
 • Ventricular escape rhythm (slow!)
 • Requires urgent pacemaker

📉 Causes of AV Block (Mnemonic: DAMAGED):
• D – Drugs (beta-blockers, CCBs, digoxin)
• A – Ageing (degeneration of conduction fibres)
• M – Myocardial infarction (esp. inferior MI)
• A – Autoimmune diseases (SLE, sarcoid, Lyme)
• G – Genetics (congenital AV block)
• E – Electrolytes (hyperkalaemia, hypermagnesaemia)
• D – Disease (cardiomyopathy, myocarditis, endocarditis)

🩺 Diagnosis & Investigations:
• 📈 ECG – cornerstone: look for PR intervals, dropped beats, AV dissociation
• 🕒 Holter monitor – for intermittent blocks
• 🧪 Bloods – check electrolytes, rule out drug toxicity or inflammation
• 🫀 Echo – assess structural heart disease
• 🧬 EPS – for unclear or high-grade cases

💉 Management:
• 👀 First-Degree + asymptomatic → Observation
• ⚠️ Mobitz II + Third-Degree → Pacemaker required
• 🔍 Address underlying cause (e.g. stop offending drugs, treat Lyme disease, manage MI)

🚨 Complications if Untreated:
– 💢 Bradycardia
– 🌀 Syncope and falls
– ⚡ Sudden cardiac death
– 💔 Heart failure and poor cardiac output

🧠 Exam Tip:
Spot the difference between Mobitz I vs II on the ECG.
Use the phrase:
“Wenckebach walks away (PR gets longer), Mobitz II stays steady and drops suddenly.”

📎 More MSRA resources on Atrioventricular Block:📖 Revision Notes: https://www.passthemsra.com/topic/atrioventricular-block-revision-notes/
🧠 Flashcards: https://www.passthemsra.com/topic/atrioventricular-block-flashcards/
💬 Accordion Q&A: https://www.passthemsra.com/topic/atrioventricular-block-accordion-qa-notes/
🔗 Topic Page: https://www.passthemsra.com/?post_type=sfwd-topic&p=23536&preview=true
🌐 Main Site: https://passthemsra.com
🎁 Free Resources: https://freemsra.com

Hashtags#MSRA #MSRARevision #HeartBlock #AVBlock #Mobitz1 #Mobitz2 #CompleteHeartBlock #MSRAFlashcards #MSRAQuiz #PassTheMSRA #FreeMSRA #MedicalPodcast #CardiologyMSRA

🫀 FREE MSRA PODCAST – Myocarditis: Causes, Clues, and Clinical Pearls
In this episode, we break down the must-know facts about myocarditis for the MSRA. 🎯
Whether you're revising at pace or prepping for clinical scenarios, this focused discussion covers presentation, differentials, investigations, and management — all in an exam-friendly style.

💡 Episode Highlights:

– Definition
 • Myocarditis = inflammation of the heart muscle (myocardium).
 • Can lead to cell death, arrhythmias, heart failure, and in severe cases, sudden cardiac death.

– Causes (Mnemonic: I-MEDIC):
 • I – Idiopathic (most common – ~50%)
 • M – Microbes:
  – Viruses (Coxsackie B, EBV, CMV, HIV, Influenza, Adenovirus)
  – Bacteria (Diphtheria, TB, Lyme, Syphilis)
  – Fungi (Candida, Aspergillus)
  – Parasites (Chagas, Toxoplasma, Leishmania)
 • E – Eosinophilic/Autoimmune: SLE, Sarcoidosis, Kawasaki, IBD
 • D – Drugs: Clozapine, Doxorubicin, Lithium, Cocaine
 • I – Infiltrative (Giant cell, amyloidosis)
 • C – Chemicals (Heavy metals, Radiation)

– Red Flags / Key Presentations:
 • 📉 Recent viral illness
 • 💥 Sharp, pleuritic chest pain (may mimic ACS)
 • 💓 Palpitations, SOB, fatigue
 • 🫁 Signs of heart failure: oedema, raised JVP, low BP
 • ⚠️ Consider in young patients with troponin rise but normal coronaries

🧪 Investigations & Findings:
• 🔬 Troponin ↑ – key marker of myocardial injury
• 📉 ECG – non-specific changes, AV block, ST-T changes, arrhythmias
• 🩻 CXR – may show cardiomegaly or pulmonary oedema in late stages
• 🩺 ECHO – assess for reduced ejection fraction, wall motion, effusion
• 💉 Endomyocardial biopsy – gold standard (only if diagnosis unclear/severe)
• 🧲 Cardiac MRI – becoming key non-invasive tool to detect inflammation and scarring
• 🧪 Viral serology, CRP, ESR, and autoimmune markers where relevant

💊 Management Approach (Mnemonic: SUPPORT):
• S – Supportive care is first-line for most viral cases
• U – Underlying cause treated if identified (e.g., antibiotics, antivirals)
• P – Pericardial effusion/tamponade – consider pericardiocentesis
• P – Pacing or anti-arrhythmics for arrhythmias
• O – Oxygen and fluid balance – cautious with IV fluids
• R – Restrict activity – no strenuous exercise for 6 months
• T – Transplant or LVAD for end-stage cases

🚨 Complications to Watch For:
– 💣 Sudden cardiac death (esp. fulminant myocarditis)
– 💓 Dilated cardiomyopathy in 10–25%
– 🔁 Arrhythmias – AF, VT, AV block
– 💔 Heart failure – chronic or acute

📎 More MSRA resources on Myocarditis:📝 Revision Notes: https://www.passthemsra.com/topic/myocarditis-revision-notes/
🧠 Flashcards: https://www.passthemsra.com/topic/myocarditis-flashcards/
🧩 Accordion Q&A: https://www.passthemsra.com/topic/myocarditis-accordion-qa-notes/
🔗 Topic Page: Coming soon on PassTheMSRA
🌐 Main Site: https://passthemsra.com
🎁 Free Resources: https://freemsra.com

Hashtags#MSRA #MSRARevision #Myocarditis #CardiologyMSRA #MSRAFlashcards #MSRAAccordions #MyocarditisMSRA #MSRAQuiz #MedicalRevision #PassTheMSRA #FreeMSRA #Troponin #CardiacMRI

🫀 FREE MSRA PODCAST – Rheumatic Fever: Criteria, Clues, and Clinical Pearls
In this must-listen episode, we take a focused, high-yield look at Rheumatic Fever – a rare but high-stakes condition for the MSRA exam. 🎯
Perfect for active recall and quick revision, this podcast unpacks the Jones criteria, core symptoms, treatment strategies, and long-term prevention — all in one punchy episode.

💡 Episode Highlights:

– Definition • 🦠 Rheumatic Fever is an autoimmune, inflammatory condition triggered by a Group A Streptococcus (GAS) infection – most often pharyngitis.

– Mnemonic for Major Criteria (J♥NES):
 • J – Joints (migratory polyarthritis – large joints, NSAID-responsive)
 • ♥ – Carditis (pancarditis, murmurs, arrhythmias – most feared complication)
 • N – Nodules (firm, painless, subcutaneous – over extensor surfaces)
 • E – Erythema marginatum (map-like rash on trunk/limbs, not face)
 • S – Sydenham’s chorea (involuntary jerky movements, late onset, more common in girls)

– Minor Criteria (Mnemonic: FEVAP):
 • F – Fever
 • E – ECG: prolonged PR interval
 • V – Previous rheumatic fever
 • A – Arthralgia (joint pain without swelling)
 • P – Raised inflammatory markers (CRP/ESR)

🧪 Plus: Evidence of recent GAS infection (e.g., raised ASO or Anti-DNase B titres) is essential for diagnosis.

🩺 Diagnosis Essentials:
– 🔍 Based on revised Jones Criteria (2015)
– 📈 Raised CRP/ESR, positive ASO/Anti-DNase B
– 🩻 Echo to assess for carditis & valvular damage
– 📉 ECG: prolonged PR interval
– 🧬 Consider chorea even months after initial strep infection

💊 Treatment Breakdown:

1. 💉 Antibiotics – Penicillin (or macrolides if allergic)

2. 🔥 Anti-inflammatory – High-dose aspirin

3. 💪 Steroids – If severe carditis or poor response to aspirin

4. 💔 Heart failure – Manage with ACE inhibitors, diuretics

5. 😵 Chorea – Diazepam preferred; Haloperidol if needed

🛡️ Prevention of Recurrence – Long-term Prophylaxis:
– Monthly IM benzathine penicillin
– Duration depends on presence of carditis and valve damage:
 • No carditis: 5 years or until age 21
 • Carditis resolved: 10 years or until age 21
 • Persistent valvular disease: 20+ years or lifelong

❗ Key Complications:
– Rheumatic Heart Disease (RHD): 🫀 chronic valvular damage, esp. mitral valve
– Heart failure, AF, stroke
– Pericardial effusion, pulmonary hypertension

📎 More MSRA revision resources on Rheumatic Fever:
📝 Revision Notes: https://www.passthemsra.com/topic/rheumatic-fever-revision-notes/
🧠 Flashcards: https://www.passthemsra.com/topic/rheumatic-fever-flashcards/
🧩 Accordion Q&A: https://www.passthemsra.com/topic/rheumatic-fever-accordion-qa-notes/
🔗 Topic Page: https://www.passthemsra.com/?post_type=sfwd-topic&p=23475&preview=true
🌐 Main Site: https://passthemsra.com
🎁 Free Resources: https://freemsra.com

Hashtags#MSRA #RheumaticFever #MSRARevision #JonesCriteria #Carditis #MSRAFlashcards #MSRAAccordions #MSRAQuiz #PassTheMSRA #FreeMSRA #RheumaticHeartDisease #PaediatricsMSRA

🫀 FREE MSRA PODCAST – Dilated Cardiomyopathy: Clear, Concise & Exam-Ready
In this high-yield episode, we deep-dive into Dilated Cardiomyopathy (DCM) — the most common cardiomyopathy, and a vital topic for both exams and clinical practice. 🎯

👂 Perfect for revising on the go, this episode distils DCM down to the essentials you actually need.

💡 Episode Highlights:

– Definition & Core Concept
 • DCM = dilation and weakened contraction of the left ventricle, leading to systolic heart failure
 • Pumping power ↓ → blood flow ↓ → symptoms of heart failure emerge

– Causes to Remember (Mnemonic: GIFT CARD)
 • Genetic (35% of cases – e.g., Duchenne muscular dystrophy)
 • Idiopathic (most common)
 • Familial
 • Toxins (alcohol, cocaine, chemotherapy – e.g., doxorubicin)
 • Congenital/inflammatory (SLE, sarcoidosis)
 • Arrhythmias, autoimmune, infiltrative (amyloidosis, haemochromatosis)
 • Risk factors (HTN, diabetes)
 • Drugs (chemo, antivirals)

– Symptoms
 • 🫁 Breathlessness, especially on exertion or lying flat
 • 💦 Peripheral oedema, raised JVP
 • ❤️ Fatigue, palpitations, fainting, possible sudden cardiac death

– Key Investigations
 • 🩺 Echocardiogram – confirms LV dilation and reduced EF
 • 🧪 BNP/NT-proBNP – raised with ventricular strain
 • 🧲 Cardiac MRI – tissue detail, scarring, infiltration
 • 🧬 Genetic testing if familial DCM suspected
 • 🩻 Chest X-ray (balloon-shaped heart), ECG (AF, LBBB), coronary angiography to exclude ischaemia

– Management: The Main Pillars
 1. 💊 Medication – ACE inhibitors/ARBs, beta-blockers, diuretics, MRAs
 2. ⚡ Devices – ICD for SCD risk, CRT for dyssynchrony
 3. 🧬 Lifestyle – alcohol abstinence, manage comorbidities
 4. 🫀 Surgery – valve repair or heart transplant in refractory cases

– Complications
 • 🌀 Progressive heart failure
 • ⚡ Dangerous arrhythmias (AF, VT → sudden death)
 • 🧠 Thromboembolism (strokes, systemic emboli)
 • 🚑 Emergency: sudden cardiac arrest

– Prognosis & Prevention
 • 🩺 Variable – worse with late diagnosis, severe symptoms, or advanced disease
 • 🎯 Prevention = early diagnosis, controlling risk factors, avoiding alcohol/drugs
 • 🧬 Genetic testing crucial for family screening
 • 📉 ~50% five-year survival without optimal management

📎 More MSRA revision resources on Dilated Cardiomyopathy:📝 Revision Notes: https://www.passthemsra.com/topic/dilated-cardiomyopathy-revision-notes/
🧠 Flashcards: https://www.passthemsra.com/topic/dilated-cardiomyopathy-flashcards/
🧩 Accordion Q&A: https://www.passthemsra.com/topic/dilated-cardiomyopathy-accordion-qa-notes/
🔗 Topic Page: https://www.passthemsra.com/?post_type=sfwd-topic&p=23552&preview=true
🌐 Main Site: https://passthemsra.com
🎁 Free Resources: https://freemsra.com

Hashtags#MSRA #DilatedCardiomyopathy #MSRARevision #DCM #HeartFailure #CardiologyMSRA #MSRAFlashcards #MSRAAccordions #MSRAQuiz #PassTheMSRA #FreeMSRA #BNP #HeartTransplant #CardiacMRI

🩺 FREE MSRA PODCAST – Complete Heart Block: A Disconnected Beat 🫀
When the heart’s upper and lower chambers stop talking to each other, things can get serious—fast. In this deep dive, we explore Complete Heart Block (third-degree AV block), a high-stakes topic for the MSRA and clinical practice.

🎯 Here’s what we cover in this essential episode:

– Definition & Overview
 • A total electrical disconnect between the atria and ventricles
 • Also called third-degree AV block
 • Results in independent atrial and ventricular rhythms (AV dissociation)

– Causes
 • 👵 Degenerative conduction disease (age-related)
 • ❤️ Ischaemic heart disease, previous MI
 • 🔥 Myocarditis, congenital defects, autoimmune links (e.g. lupus)
 • 💊 Drug-induced: beta-blockers, calcium channel blockers, digoxin

– Nodal vs Infranodal Blocks
 • Nodal = above or at the AV node → 🔹 narrow QRS, milder symptoms
 • Infranodal = below AV node → ⚠️ wide QRS, slower rate (<45 bpm), more unstable
 • Mnemonic: Nodal = Narrow + Nicer, Infra = Important + Impactful

– Key Signs & ECG Findings
 • 💓 Regular but slow pulse (30–50 bpm)
 • ❌ No relation between P waves and QRS complexes
 • 📈 Look for capture beats, canon A waves, and variable S1
 • Canon A waves = atrial contraction against a closed valve

– Symptoms
 • 😵 Dizziness, syncope, fatigue
 • 🫁 Breathlessness, worsening heart failure
 • 💥 Risk of sudden cardiac death in unstable cases

– Diagnosis
 • 📊 ECG is gold standard – unmistakable AV dissociation
 • 🔁 Holter monitor or loop recorders for intermittent cases
 • 🧠 EPS if location is unclear
 • 🫀 Echocardiogram to assess cardiac structure

– Management
 • 🚨 Urgent pacing if unstable
 • 🔌 Permanent pacemaker = main treatment
 • 🚫 Stop causative meds (e.g., rate-limiters)
 • 💊 Treat underlying heart disease (e.g., CAD, cardiomyopathy)

– Prognosis & Complications
 • 👍 With a pacemaker, prognosis is usually excellent
 • ⚠️ Complications include falls, bradycardia symptoms, and rarely cardiac arrest
 • Long-term outlook depends on underlying heart function

📎 More MSRA resources on Complete Heart Block:📝 Revision Notes: https://www.passthemsra.com/topic/complete-heart-block-revision-notes/
🧠 Flashcards: https://www.passthemsra.com/topic/complete-heart-block-flashcards/
🧩 Accordion Q&A: https://www.passthemsra.com/topic/complete-heart-block-accordion-qa-notes/
🔗 Topic Page: https://www.passthemsra.com/?post_type=sfwd-topic&p=23532&preview=true
🌐 Main Site: https://passthemsra.com
🎁 Free Resources: https://freemsra.com

Hashtags#MSRA #CompleteHeartBlock #ThirdDegreeAVBlock #ECGInterpretation #MSRAFlashcards #MSRAAccordions #MSRAExamPrep #CardiologyMSRA #Pacemaker #PassTheMSRA #FreeMSRA #MSRARevisionTools #Bradycardia

🩺 FREE MSRA PODCAST – Supraventricular Tachycardia: Fast Rhythms, Clear Logic ❤️‍🔥

SVT is one of those rapid rhythms that can throw patients (and clinicians!) into a spin. This episode cuts through the ECG noise and gives you a clear, structured understanding of how to diagnose, manage, and confidently recognise SVT.

🎯 In this high-yield audio guide, we unpack:

– Definition & Overview
 • SVT = abnormally fast rhythm originating above the ventricles
 • Common types include AVNRT, AVRT (e.g. WPW), atrial flutter, and focal atrial tachycardias
 • Caused by reentry circuits, automaticity, or triggered activity

– Key Subtypes
 • AVNRT = reentry loop within the AV node
 • AVRT = loop using an accessory pathway (WPW = delta wave!)
 • Atrial flutter = macro-reentrant loop in atria (sawtooth ECG)
 • Automatic tachycardias = rogue pacemaker cells fire too fast

– Causes & Risk Factors
 • 💉 Congenital defects, structural heart disease
 • 🧂 Electrolyte imbalances: low K+, low Mg²⁺
 • ☕️ Stimulants (caffeine, nicotine), stress, post-op, myocarditis
 • 🔥 WPW can be asymptomatic or cause dangerous arrhythmias

– Symptoms
 • Sudden onset palpitations, fluttering, chest discomfort
 • Light-headedness, breathlessness, fatigue
 • Rarely: syncope or cardiovascular collapse in at-risk patients

– Diagnosis
 • 📈 ECG is king: classify by QRS width, rhythm regularity, P-wave presence, and RP interval
 • 👁️ Watch for delta waves in WPW
 • Use Holter, loop recorders, or EPS if episodes are missed on ECG
 • Rule out VT in all wide complex tachycardias

– Acute Management
 • Stable patient:
  1️⃣ Vagal manoeuvres (Valsalva, carotid massage)
  2️⃣ Adenosine IV (blocks AV node – AVNRT/AVRT cure)
 • Unstable: ⚡️ Immediate synchronised cardioversion

– Long-Term Management
 • 🎯 Beta-blockers or rate-limiting calcium channel blockers
 • 🛑 For persistent/recurrent cases: radiofrequency ablation = curative for most AVNRT/AVRT
 • 📵 Driving restrictions apply if syncope or risk of incapacity
 • 🔄 Lifestyle changes: reduce caffeine, manage triggers, correct electrolytes

– Prognosis & Complications
 • 🌟 Excellent in structurally normal hearts
 • WPW + AFib = 🚨 VF risk → sudden death
 • ⚠️ Rare complications: cardiomyopathy, shock, embolic events

📎 More MSRA resources on Supraventricular Tachycardia:📝 Revision Notes: https://www.passthemsra.com/topic/supraventricular-tachycardia-revision-notes/
🧠 Flashcards: https://www.passthemsra.com/topic/supraventricular-tachycardia-flashcards/
🧩 Accordion Q&A: https://www.passthemsra.com/topic/supraventricular-tachycardia-accordion-qa-notes/
🔗 Topic Page: https://www.passthemsra.com/?post_type=sfwd-topic&p=23471&preview=true
🌐 Main Site: https://passthemsra.com
🎁 Free Practice: https://freemsra.com

Hashtags#MSRA #SupraventricularTachycardia #AVNRT #AVRT #WPW #Tachycardia #ECGInterpretation #MSRAFlashcards #MSRAAccordions #PassTheMSRA #FreeMSRA #MSRAOnlineRevision #MSRAQuestionBank #Cardiology

🩺 FREE MSRA PODCAST – Infective Endocarditis: Don’t Miss the Murmur 💔
It’s not common, but when it strikes, Infective Endocarditis (IE) can be fatal. From fever and murmurs to Osler’s nodes and Roth spots — this is one condition you must recognise fast.

🎯 In this episode, we cover all the exam and clinical essentials:

– Definition & Pathophysiology:
 • IE is an infection of the heart’s endocardial surface — typically the valves
 • 🔬 Caused mainly by Staphylococcus aureus, Strep viridans, Staph epidermidis, and Strep bovis
 • 🧬 Vegetations = fibrin + platelets + bacteria → can embolise → cause systemic complications

– Causes & Risk Factors (MSRA high-yield):
 • 💉 IV drug use – typically tricuspid valve
 • ⚙️ Prosthetic valves
 • ❤️ Pre-existing heart disease
 • 🦷 Poor dental hygiene / procedures → Strep viridans
 • 🧪 Strep bovis → 🔎 think colorectal cancer!

– Key Clinical Features:
 • 🌡️ Fever, fatigue, night sweats, weight loss
 • 💓 New or changing murmur
 • 💥 Signs of emboli: petechiae, splinter haemorrhages, Janeway lesions
 • 🔬 Osler’s nodes, Roth spots, clubbing
 • ⚠️ Look out for: stroke, AKI, MI, visual loss, heart failure, or septic shock

– Diagnosis (Modified Duke Criteria):
 • 🧫 Blood cultures: 3 sets from separate sites before antibiotics
 • 🫀 Echocardiogram: TTE first, TOE if suspicion remains
 • 🧪 FBC, CRP, ESR, U&Es, LFTs, ECG (heart block), urinalysis
 • 🔬 Consider serology: Coxiella, Bartonella, Brucella for culture-negative IE

– Management (UK NICE-aligned):
 • 💉 4–6 weeks IV antibiotics (guided by microbiology)
 • 🔧 Surgical referral if: heart failure, persistent infection, abscess, prosthetic valve IE, or embolic complications
 • 🚫 No routine dental antibiotic prophylaxis anymore – focus is on oral hygiene
 • 🧠 Always involve ID/microbiology teams

– Complications:
 • 💔 Heart failure, valve destruction, abscess, heart block
 • 🧠 Stroke, meningitis, visual loss
 • 🔥 Glomerulonephritis, immune complex arthritis, septic emboli, mycotic aneurysms
 • 🧬 Fungal IE, often post-GU procedure, has very poor prognosis

📎 More MSRA resources on Infective Endocarditis:📝 Revision Notes: https://www.passthemsra.com/topic/infective-endocarditis-revision-notes/
🧠 Flashcards: https://www.passthemsra.com/topic/infective-endocarditis-flashcards/
🧩 Accordion Q&A: https://www.passthemsra.com/topic/infective-endocarditis-accordion-qa-notes/
🔗 Topic Page: https://www.passthemsra.com/?post_type=sfwd-topic&p=23504&preview=true
🌐 Main Site: https://passthemsra.com
🎁 Free Practice: https://freemsra.com

Hashtags#MSRA #InfectiveEndocarditis #MSRAFlashcards #MSRAAccordions #MSRAQBank #DukeCriteria #CardiologyMSRA #StaphAureus #StrepBovis #ColorectalCancerLink #EndocarditisSigns #MSRAExam #PassTheMSRA #FreeMSRA

🩺 FREE MSRA PODCAST – Takayasu’s Arteritis: Unequal Pulses, Unmissable Clues 🔎
Ever seen a blood pressure difference between arms? This episode takes you inside one of the most exam-worthy rare vasculitides — Takayasu’s Arteritis. Compact, clear, and clinically crucial.

🎯 What you’ll learn (with high-yield recall tips):

– Definition & Core Concept:
 • 🔥 Rare large-vessel vasculitis, autoimmune in origin
 • 🎯 Targets the aorta + major branches → causes stenosis, occlusion or aneurysm
 • 🧬 Seen predominantly in young Asian females, often aged 15–30

– Symptoms & Red Flags:
 • 😓 Systemic phase = fatigue, fever, weight loss
 • 💢 Occlusive phase = limb claudication, syncope, dizziness, visual changes
 • 💡 KEY CLUE = >10 mmHg systolic BP difference between arms
 • 🔊 May hear bruits over subclavian/carotid arteries
 • 💔 Can present with aortic regurgitation in 20% of cases

– Diagnosis & Imaging:
 • 🩻 Diagnosis = clinical suspicion + CTA, MRA or Doppler
 • 🔍 PET scan may help assess active inflammation
 • 🧪 Bloods show ↑ESR, but no specific antibody tests
 • 🧠 Differentials: giant cell arteritis, Behçet’s, atherosclerosis

– Management Essentials (UK NICE style):
 • 💊 High-dose corticosteroids (prednisolone) = 1st line
 • 💉 Add immunosuppressants (methotrexate, azathioprine) as steroid-sparing agents
 • 🧬 Refractory cases → biologics (e.g. tocilizumab, infliximab)
 • 🩹 Aspirin often used for thrombotic risk
 • ⚠️ Avoid stenting/surgery during active inflammation due to fragility
 • 💉 Angioplasty or bypass for severe stenosis once disease is quiet

– Complications & Prognosis:
 • 🧠 Stroke, vision loss, MI (if coronaries involved), severe hypertension
 • 💡 ~20% may have self-limiting course
 • 🔁 But most require long-term treatment + monitoring (imaging + BP)

📎 More MSRA resources on Takayasu’s Arteritis:📝 Revision Notes: https://www.passthemsra.com/topic/takayasus-arteritis-revision-notes/
🧠 Flashcards: https://www.passthemsra.com/topic/takayasus-arteritis-flashcards/
🧩 Accordion Q&A: https://www.passthemsra.com/topic/takayasus-arteritis-accordion-qa-notes/
🔗 Topic Page: https://www.passthemsra.com/?post_type=sfwd-topic&p=23467&preview=true
🌐 Main Site: https://passthemsra.com
🎁 Free Questions: https://freemsra.com

Hashtags#MSRA #TakayasusArteritis #MSRAFlashcards #VasculitisMSRA #MSRAAccordions #CardiologyMSRA #MSRAQuestionBank #AutoimmuneMSRA #MSRARevision #PassTheMSRA #FreeMSRA #NICEGuidelines #BPdifference #Claudication

⚡ FREE MSRA PODCAST – Ventricular Tachycardia (VT): Fast, Fatal, and Must-Know 🚑
VT is one of the most dangerous arrhythmias you’ll encounter in clinical practice. In this episode, we simplify everything you need to recall in seconds — from ECG clues to life-saving actions.

🔍 What you’ll learn (with recall tips):

– Definition & ECG Hallmarks:
 • 💓 Rapid ventricular rhythm (>100 bpm)
 • 🔎 Wide QRS complexes (>120ms), AV dissociation, fusion/capture beats
 • ⚠️ Monomorphic = one focus; Polymorphic = multiple changing morphologies
 • 🌀 Think “VT until proven otherwise” in any broad complex tachycardia

– Types & Triggers:
 • 🚨 Monomorphic VT – most common in post-MI patients
 • 🔀 Polymorphic VT – e.g. torsades de pointes in prolonged QT
 • 🎯 Fascicular VT (narrower QRS) + RVOT VT (right axis, LBBB morphology)
 • 💊 Triggered by drugs (class I antiarrhythmics), toxins, electrolyte imbalances
 • 🧬 Also think inherited causes → Brugada, Long QT, ARVC

– Risk Factors & Pathophysiology:
 • 🫀 Previous MI, cardiomyopathy, LV aneurysm
 • ⚡ Electrolyte imbalance: ↓K⁺, ↓Mg²⁺, ↓Ca²⁺
 • 🧬 Genetic arrhythmia syndromes
 • 🔁 Mechanisms = re-entry circuits, triggered activity, increased automaticity
 • 💥 Can rapidly degenerate to VF and sudden cardiac death

– Symptoms & Red Flags:
 • 💓 Palpitations, chest pain, syncope
 • 😵 Dizziness, confusion, hypotension, raised JVP, crackles
 • 🫣 May present in cardiac arrest → pulseless VT
 • ❗ Treated as unstable if there's any haemodynamic compromise

– Diagnosis & Management:
 • 🧾 12-lead ECG = cornerstone
 • 🧪 U&Es, Mg²⁺, Ca²⁺, troponin, drug levels (digoxin, etc.)
 • 📉 Treat unstable VT = Immediate synchronised DC cardioversion
 • 💉 Stable VT → IV amiodarone (first-line), or lidocaine
 • 🚫 Avoid verapamil – may be fatal if misdiagnosed SVT
 • 🔥 Recurrent VT → catheter ablation, ICD (NICE: EF <35%, post-arrest, VT storm)
 • 💡 Long-term → treat underlying cause, risk stratify for ICD

📎 More MSRA resources on Ventricular Tachycardia:📝 Revision Notes: https://www.passthemsra.com/topic/ventricular-tachycardia-revision-notes/
🧠 Flashcards: https://www.passthemsra.com/topic/ventricular-tachycardia-flashcards/
🧩 Accordion Q&A: https://www.passthemsra.com/topic/ventricular-tachycardia-accordion-qa-notes/
🔗 Topic Page: https://www.passthemsra.com/?post_type=sfwd-topic&p=23455&preview=true
🌐 Main Site: https://passthemsra.com
🎁 Free Questions: https://freemsra.com

Hashtags#MSRA #VentricularTachycardia #VTMSRA #CardiologyMSRA #MSRAFlashcards #MSRAAccordions #PassTheMSRA #FreeMSRA #NICEGuidelines #BroadComplexTachycardia #VTStorm #TorsadesDePointes #CardiacArrest #ICD #MedicalPodcast #MSRARevision

❤️‍🔥 FREE MSRA PODCAST – Hypertrophic Obstructive Cardiomyopathy (HOCM): What You Must Know 🚨
HOCM is a genetic ticking time bomb that can cause sudden cardiac death in young, fit patients. In this episode, we break down the must-know signs, symptoms, and management — all in a rapid, high-yield format.

🔍 What you’ll learn (with recall tips):

– Definition: • Genetic cardiomyopathy → abnormally thickened LV muscle
 • Causes outflow obstruction, diastolic dysfunction, and potential mitral regurgitation
 • ⚠️ One of the leading causes of sudden cardiac death in young people and athletes

– Causes & Risk Factors:
 • 🧬 Autosomal dominant mutations → e.g. beta-myosin heavy chain, myosin-binding protein C
 • 📈 Often familial → first-degree relatives have a 50% chance
 • 📉 Sometimes worsened by hypertension, metabolic disease, or ageing

– Symptoms & Examination Clues:
 • 🫁 Exertional dyspnoea, angina, syncope, palpitations
 • 🩺 Classic murmur: ejection systolic ↑ louder on Valsalva, ↓ with squatting
 • 🔄 Jerky pulse, double apex beat, S4 gallop, AF in ~20% of cases
 • 👁️ Sudden death may be first presentation — red flags: syncope, VT, family history

– Investigations (Think: MR-SAM-ASH Mnemonic):
 • 🫀 Echo = cornerstone → Mitral Regurgitation, Systolic Anterior Motion (SAM), Asymmetrical Septal Hypertrophy
 • 🧲 Cardiac MRI = more detailed LVH & fibrosis evaluation
 • 📉 ECG → LVH, deep Q waves, inverted T-waves, nonspecific ST changes
 • ⌚ Holter monitoring → detect arrhythmias
 • 🧬 Genetic testing + family screening

– Management (High-yield principles):
 • 💊 First-line: Beta-blockers to reduce contractility & symptoms
 • 💊 Verapamil may help with diastolic filling
 • ⚠️ Avoid: Nitrates, ACE inhibitors, digoxin, and inotropes
 • 🩻 Septal myectomy or alcohol septal ablation for severe obstruction
 • ⚡ ICDs for high-risk individuals — life-saving in SCD risk
 • 🚫 No competitive sports → lifestyle guidance critical

– Complications:
 • 🧠 Sudden cardiac death
 • 🫀 Atrial fibrillation, VT/VF
 • 💔 Progressive heart failure
 • 💉 Stroke (especially if AF present)
 • 🧬 Risk to family → essential to screen 1st-degree relatives

📎 More MSRA resources on HOCM:📝 Revision Notes: https://www.passthemsra.com/topic/hypertrophic-obstructive-cardiomyopathy-revision-notes/
🧠 Flashcards: https://www.passthemsra.com/topic/hypertrophic-obstructive-cardiomyopathy-flashcards/
🧩 Accordion Q&A: https://www.passthemsra.com/topic/hypertrophic-obstructive-cardiomyopathy-accordion-qa-notes/
🔗 Topic Page: https://www.passthemsra.com/?post_type=sfwd-topic&p=23560&preview=true
🌐 Main Site: https://passthemsra.com
🎁 Free Questions: https://freemsra.com

Hashtags#MSRA #HypertrophicObstructiveCardiomyopathy #HOCM #MSRAFlashcards #MSRAAccordions #PassTheMSRA #FreeMSRA #NICEGuidelines #SuddenCardiacDeath #MedicalPodcasts #CardiologyMSRA #ICD #BetaBlockers #EchoFindings #MRSAMASH #AFib #LVH