Pigtail catheter

Pigtail catheter

Pigtail catheter
Pigtail catheter

Pigtail catheter is a left heart angiographic catheter. The curved tip reduces the chance of the jet of dye injected using a pressure injector from impinging on the wall and producing staining during left ventriculography. Multiple side holes distributes the pressure in various directions and reduces the catheter recoil and hence the chance for ventricular ectopy during pressure injection of dye for left ventriculography. But a pigtail catheter is not an ideal one to measure the pressure gradient by catheter pull back from left ventricle to aorta as the spatial dispersion of side holes prevents measurement of pressure at one location.