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Table 7 Stages of TR

From: 2023 Korean Society of Echocardiography position paper for the diagnosis and management of valvular heart disease, part II: mitral and tricuspid valve disease

Characteristic

Stage

 

A

B

C

D

Definition

At risk

Progressive

Asymptomatic severe

Symptomatic severe

Severity

Normal to trivial

Mild

Moderate

Severe

Massive

Torrential

Echocardiography morphology

 Leaflet

Normal

Mild to moderate thickening

Severe thickening, flail, perforation, retraction

 Coaptation

Normal, CIED, AF

Limited, prolapse, lead impingement

Severe loss, prolapse

 Annulus

Normal

Dilation

Dilation

VCW (mm)

-

< 3

3–6

7–13

14–20

≥ 21

EROA (cm2)

-

< 0.2

0.2–0.4

0.4–0.6

0.6–0.8

≥ 0.8

PISA radiusa (mm)

-

≤ 5

6–8

≥ 9

Regurgitant volume (mL)

-

< 30

30–45

45–59

60–74

≥ 75

Regurgitant fraction (%)

-

< 30

30–49

≥ 50

RA/RV size

-

Normal or ↑

↑

Hepatic vein flow

-

Systolic dominance

Systolic blunting

Systolic flow reversal

TR-CW Doppler jet

-

Faint/ parabolic

Dense/ parabolic

Dense, triangular

Symptom

None

None

None

DOE, EI, right HF

  1. TR Tricuspid regurgitation, CIED Cardiac implantable electronic devices, AF Atrial fibrillation, VCW Vena contracta width, EROA Effective regurgitant orifice area by 2D-PISA method, PISA Proximal isovelocity surface area, RA Right atrium, RV Right ventricle, CW Continuous wave, DOE Dyspnea on exertion, EI Exercise intolerance, HF Right heart failure
  2. aRadius at Nyquist limit shift of 28 cm/sec