There are a number of ways to do this. The goal is to position the catheter into the left ventricle without causing any adverse affects on the heart function. Some published methods include:
- Inserting the catheter down through the aorta into the left ventricle.
- Inserting it through the left atrium and into the ventricle via one of the pulmonary veins (e.g., Lü et al., J. Am. Coll. Cardiol. 49, 1443-9, 2007).
- Via an apical stab. E.g., a cannula can be inserted into the left ventricle through the apex of the heart. The cannula is then connected to the catheter via a fluid-filled adapter (e.g., Assum et al., Am J Physiol Heart Circ Physiol. 283, H949–H957, 2002).
Video guidance can be seen here.
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