Question:medium

Breathing difficulty with generalized weakness. On auscultation a mid diastolic murmur with prominent wave is seen in:

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A prominent 'a' wave in the JVP combined with a mid-diastolic murmur indicates obstruction at the right AV valve.
Updated On: Jun 23, 2026
  • TS (Tricuspid Stenosis)
  • MS (Mitral Stenosis)
  • MR (Mitral Regurgitation)
  • TR (Tricuspid Regurgitation)
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The Correct Option is A

Solution and Explanation

Systematic auscultation and JVP analysis approach:

Clinical data: generalized weakness, breathing difficulty, mid-diastolic murmur, prominent wave (JVP a-wave).

Mid-diastolic murmur differential:
- Mitral stenosis (MS): left-sided, apex, opening snap, associated with AF and left atrial enlargement.
- Tricuspid stenosis (TS): right-sided, left lower sternal border, louder on inspiration.
- Austin Flint murmur (aortic regurgitation): rumbling mid-diastolic at apex, no opening snap.

The discriminating finding -- prominent a-wave:
JVP a-wave represents right atrial contraction. In TS, blood cannot cross the stenosed tricuspid valve easily, so the right atrium contracts forcefully, producing a giant a-wave in the JVP. This is the classical distinguishing feature of TS vs MS.

Other features of TS:
- Carvallo's sign: murmur increases on inspiration (right-sided murmur rule)
- Hepatomegaly and ascites (right heart failure)
- Etiology: rheumatic fever (MC), carcinoid syndrome

Therefore, the answer is Tricuspid Stenosis (TS).

\[\boxed{\text{Tricuspid Stenosis (TS)}}\]
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