Valvular Murmurs for MRCP Part 1: Ultimate List

TL;DR

Valvular Heart Disease: Murmurs for MRCP Part 1 questions rely on recognising classic auscultatory patterns, manoeuvre responses, and associated clinical signs. Focus on the five core lesions (aortic stenosis, aortic regurgitation, mitral stenosis, mitral regurgitation, and mitral valve prolapse), understand preload/afterload effects, and avoid common traps such as confusing hypertrophic cardiomyopathy with aortic stenosis. Structured revision and repeated practice are the fastest way to master murmur questions.

Valvular Heart Disease: Murmurs for MRCP Part 1 — The Ultimate List

Cardiac murmurs are among the most predictable cardiology topics in MRCP Part 1. Questions rarely depend on obscure bedside signs; instead, they test recognition of classical descriptions and understanding of cardiovascular physiology.

Candidates should learn murmur patterns alongside haemodynamic principles and clinical associations. This guide supports revision alongside the MRCP Part 1 overview and should be followed by targeted practice in the Free MRCP MCQs.

For structured conceptual teaching, review the cardiology modules in the MRCP lectures section.

Why murmurs are high-yield in MRCP

According to the MRCP(UK) examination blueprint, cardiology forms a consistent proportion of the exam. Murmur questions often integrate:

• Clinical examination findings

• Haemodynamics

• ECG or echocardiography clues

• Complications such as atrial fibrillation or heart failure

• Underlying causes such as rheumatic disease or degenerative calcification

The exam rewards pattern recognition rather than memorisation of rare eponyms.

Authoritative references include:

• https://www.mrcpuk.org/mrcpuk-examinations/part-1

• https://www.escardio.org/Guidelines/Clinical-Practice-Guidelines/Valvular-Heart-Disease-Management-of

• https://www.nice.org.uk/guidance/ng208

The 5 most tested valvular lesions

The majority of murmur questions revolve around five core conditions.

Lesion	Timing	Best Heard	Radiation	Key Signs	Manoeuvre Effect
Aortic stenosis	Ejection systolic	Right 2nd ICS	Carotids	Slow-rising pulse	↓ with Valsalva
Aortic regurgitation	Early diastolic	Left sternal edge	None	Wide pulse pressure	↑ with handgrip
Mitral stenosis	Mid-diastolic rumble	Apex	None	Opening snap, AF	↑ with exercise
Mitral regurgitation	Pansystolic	Apex	Axilla	Displaced apex beat	↑ with handgrip
Mitral valve prolapse	Click + late systolic	Apex	None	Often young patient	↑ with Valsalva

If you can instantly recognise these five patterns, most murmur questions become straightforward.

High-yield murmur recognition points

Memorise these exam-focused clues:

1. Carotid radiation strongly suggests aortic stenosis.

2. Wide pulse pressure suggests aortic regurgitation.

3. Opening snap indicates mitral stenosis.

4. Axillary radiation suggests mitral regurgitation.

5. A mid-systolic click indicates mitral valve prolapse.

6. Right-sided murmurs increase with inspiration.

7. Late-peaking systolic murmurs suggest severe aortic stenosis.

8. Short A2–opening snap interval suggests severe mitral stenosis.

9. A soft S2 suggests severe aortic stenosis.

10. An S3 suggests volume overload (MR or AR).

11. New regurgitant murmur suggests infective endocarditis.

12. Valsalva increases HOCM murmurs but decreases AS murmurs.

These features repeatedly appear in exam stems.

The five most tested subtopics

1. Aortic stenosis

Classic features include:

• Harsh ejection systolic murmur

• Carotid radiation

• Slow-rising pulse

• Syncope, angina, dyspnoea

Common causes:

• Degenerative calcification

• Bicuspid valve

Late-peaking murmurs and reduced S2 intensity indicate severe disease.

2. Aortic regurgitation

Typical description:

• Early diastolic decrescendo murmur

• Wide pulse pressure

• Collapsing pulse

The exam emphasises haemodynamics rather than peripheral signs.

Acute AR presents differently:

• Pulmonary oedema

• Hypotension

• Short early diastolic murmur

3. Mitral stenosis

Key features:

• Opening snap

• Mid-diastolic rumble

• Atrial fibrillation

Most cases are rheumatic in origin.

Complications frequently tested:

• Embolic stroke

• Pulmonary hypertension

• Right heart failure

4. Mitral regurgitation

Classic description:

• Pansystolic murmur

• Apex location

• Axillary radiation

Important causes:

• Ischaemic heart disease

• Dilated cardiomyopathy

• Endocarditis

Acute MR may produce severe pulmonary oedema with only a soft murmur.

5. Mitral valve prolapse

Typical description:

• Mid-systolic click

• Late systolic murmur

Dynamic behaviour is a favourite exam topic:

• Valsalva → earlier click

• Squatting → later click

Often appears in younger patients with palpitations.

Important differentials: AS vs HOCM

This comparison is frequently tested.

Feature	Aortic stenosis	HOCM
Pulse	Slow rising	Jerky
Radiation	Carotids	None
Valsalva	Murmur decreases	Murmur increases

Mechanism:

Reduced preload increases obstruction in HOCM but reduces flow across the aortic valve in AS.

Mini-case (MRCP style)

A 64-year-old man presents with progressive dyspnoea. Examination reveals a pansystolic murmur loudest at the apex radiating to the axilla. Blood pressure is 130/70 mmHg.

What is the most likely diagnosis?

A. Aortic stenosisB. Aortic regurgitationC. Mitral regurgitationD. Tricuspid regurgitationE. Hypertrophic cardiomyopathy

Answer: C – Mitral regurgitation

Explanation

A pansystolic murmur radiating to the axilla is characteristic of mitral regurgitation. Aortic stenosis produces an ejection systolic murmur with carotid radiation, while tricuspid regurgitation increases with inspiration.

Five common exam traps

• Confusing flow murmurs with aortic stenosis.

• Forgetting that right-sided murmurs increase on inspiration.

• Missing acute MR or AR because murmurs may be soft.

• Confusing HOCM with aortic stenosis.

• Ignoring pulse pressure clues in aortic regurgitation.

Practical study checklist

Before the exam ensure you can:

1. Identify murmur timing immediately.

2. Recognise AS vs MR radiation patterns.

3. Predict manoeuvre effects logically.

4. Identify pulse abnormalities.

5. Distinguish AS from HOCM quickly.

6. Recall two causes of each lesion.

7. Recognise acute vs chronic regurgitation.

8. Interpret murmur-based question stems rapidly.

Combine theory revision with question-based learning using the Free MRCP MCQs.

FAQs

How are murmurs tested in MRCP Part 1?

Questions typically describe murmur timing, location, radiation, and pulse findings. Candidates must identify the lesion and interpret clinical implications.

Are diastolic murmurs important for MRCP?

Yes. Diastolic murmurs are always pathological and commonly tested, particularly aortic regurgitation and mitral stenosis.

Do I need to memorise peripheral signs of aortic regurgitation?

Focus on haemodynamic clues such as collapsing pulse and wide pulse pressure rather than memorising numerous named signs.

How can I revise murmurs efficiently?

Learn murmur patterns systematically, then practise repeatedly with timed question blocks and full mock exams.

Are right-sided murmurs commonly tested?

Less frequently than left-sided lesions, but inspiration-dependent changes are a favourite exam concept.

Ready to start?

Master murmur recognition and then test your understanding under exam conditions. Begin with structured revision in the MRCP Part 1 overview and reinforce learning using the Free MRCP MCQs. For conceptual clarity, review haemodynamics and murmurs in the MRCP lectures section.

Sources

MRCP(UK) Examination Informationhttps://www.mrcpuk.org/mrcpuk-examinations/part-1

ESC Guidelines for Valvular Heart Diseasehttps://www.escardio.org/Guidelines/Clinical-Practice-Guidelines/Valvular-Heart-Disease-Management-of

NICE Valvular Heart Disease Guidancehttps://www.nice.org.uk/guidance/ng208

Oxford Handbook of Clinical Medicine, 11th Edition

Braunwald's Heart Disease, 12th Edition