RV

Question 1

TAPSE

Answer 1

Tricuspid annulus plane systolic exertion 
- measured on 4 chamber view lateral

Question 2

TAPSE measures what?

Answer 2

Moving towards the Apex from an diastole to end-systole provides measure of longitudinal RV contraction

Question 3

TAPSE (normal)

Answer 3

> = 1.7 cm on M mode
Reduced when RV dysfunction is present

Question 4

RV size

Answer 4

Severely dilated > LV
Moderately dilated = LV
Mild dilated large but < LV
– Best evaluated from subcostal window 
- upper reference size for RV vasal diameter is 4.2 cm. 

Question 5

Elevated RV pressure versus volume overload on septum

Answer 5

– pressure = both systole and diastole.
– volume = flattening, mostly diastole.

Question 6

RV enlargement

Answer 6

• left sided heart disease.
  – congenital heart disease.
  – Valve regurgitation
  – left to right shunt.
  – sinus venosus ASD
  – partial anomalous pulmonary venous return

Question 7

Tissue Doppler normal

Answer 7

Peak systolic velocity
S’ >10 cm/s

Question 8

Right atrial pressure

Answer 8

-obtained from IVC
Diameter & change with sniff
3 mmHg = <2.1 cm >50%⬇️
5-8mmHg = <2.1 cm <50%⬇️
10-15 mmHg
= >2.1 cm >50%⬇️
15 mmHg = >2.1 cm <50%⬇️