Sonopath Forum

Right to left VSD, right ventricular hypertrophy, and RA dilation in a young pitbull

This thin, young adult pitbull was recently picked up off the streets by a rescue group.
The dog shows cyanosis, exercize intolerance and has a loud cardiac murmru.
Radiographs show right heart enlargement. HWT is negative.
Echocardiogram shows marked right ventricular wall and septal hypertrophy, RA enlargement, and a R to L VSD seen on 2D and CF Doppler.
Very minor TVI present with a velocity of 0.5m/s, no PVI seen, no post PV dilation appreciated but the leaflets do not appear to have good motion.

This thin, young adult pitbull was recently picked up off the streets by a rescue group.
The dog shows cyanosis, exercize intolerance and has a loud cardiac murmru.
Radiographs show right heart enlargement. HWT is negative.
Echocardiogram shows marked right ventricular wall and septal hypertrophy, RA enlargement, and a R to L VSD seen on 2D and CF Doppler.
Very minor TVI present with a velocity of 0.5m/s, no PVI seen, no post PV dilation appreciated but the leaflets do not appear to have good motion.
Could this be Tetrology of Fallot? Would you call this an overriding aorta? What do you think of the PA?

Comments

Pankatz

February 22, 2017 at 4:42 pm -

Cool images Melissa!

Cool images Melissa!

Peter

February 23, 2017 at 6:29 am -

Hi
This looks like a

This looks like a tetralogy to me, given that there is pulmonic stenosis present. What was the vmax across the PV and MPA? Not all dogs with PS show poststenotic dilation. Some have concomitant MPA hypoplasia. These are more difficult to treat interventionally. There is some degree of dextroposition of the aortic root. This can vary and if you ask 10 cardiologists you will get 10 different answers. – for me it is dextro-positioned.

If pulmonic stenosis is confirmed, this dog requires intervention or surgery.

A differential diagnosis would be severe congenital pulomonary hypertension (malformation of the pulmonary arteries, like peripheral stenosis).

Very nice images!

Peter

Electrocute

February 24, 2017 at 4:07 am -

Thanks Peter. The vmax

Thanks Peter. The vmax across the PV was 5m/s. How common is congenital pulmonary hypertension?

Peter

March 3, 2017 at 9:45 pm -

Hi!
congenital pulmonary

Hi!

congenital pulmonary hypertension is rather rare. Given the high vmax across RVOT and PV this dog needs a balloon valvuloplasty urgently.

Peter