Echocardiographic Screening for

Rheumatic Heart Disease

World Heart Federation Criteria for the Echocardiographic Diagnosis of RHD in Individuals Aged ≤20 Years

Clinical Perspective

RHD affects ≈20 million people worldwide highest in developing countries significant morbidity and mortality Subclinical detection adds to of secondary

prophylaxis echocardiographic definitions evolving In 2012, the WHF published evidence-based guidelines for the echocardiographic diagnosis of

RHD but these criteria have not yet been applied

Effective evaluation

Echocardiography search Clinical search

90% RHD detection 10% of detection

Definite echocardiographic Criteria for RHD

A) Pathologic MR and at least 2 morphologic features of RHD of the MV

B) MS mean gradient ≥4 mm Hg

C) Pathological AR and at least 2 morphological features of RHD of the AV

D) Borderline disease of both the AV and MV

Keywords

Definite RHD

Pathological MS

Pathological MR

Pathological AR

Borderline RHD

Morphological RHD

Borderline RHD (A, B, or C)

A) At least 2 morphologic features of RHD of the MV without pathologic MR or MS

B) Pathologic MR

C) Pathologic AR

Echocardiographic criteria for pathologic regurgitation (all 4 Doppler criteria must be met)

Pathological MR Pathological AR

1. Seen in 2 views2. In at least 1 view jet length ≥2 cm3. Peak velocity ≥3 m/s for 1 completeEnvelope in systole4. Pansystolic jet in at least 1 envelope

Seen in 2 views2. In at least 1 view jet length ≥1 cm3. Peak velocity ≥3 m/s for 1 completeEnvelope in diastole4. Pandiastolic jet in at least 1 envelope

Morphologic features of RHD

Features in the MV Features in the AV

1. AMVL thickening ≥3 mm 2. Chordal thickening 3. Restricted leaflet motion 4. Excessive leaflet tip motion during systole

1. Irregular or focal thickening2. Coaptation defect3. Restricted leaflet motion4. Prolapse

Reference

Reményi B, Wilson N, Steer A, Ferreira B, Kado J, Kumar K, Lawrenson

J, Maguire G, Marijon E, Mirabel M, Mocumbi AO, Mota C, Paar J,

Saxena A, Scheel J, Stirling J, Viali S, Balekundri VI, Wheaton G, Zühlke

L, Carapetis J. World Heart Federation criteria for echocardiographic diagnosis

of rheumatic heart disease–an evidence-based guideline. Nat Rev

Cardiol. 2012;9:297–309.

Clinical application

http://circ.ahajournals.org/content/early/2014/03/12/CIRCULATIONAHA.113.003495.abstract

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