During his fourth year, working with prof. Gómez Oliveros, he began to focus on his lifelong interest in cardiac anatomy and physiology.

This motivated him to write his first monograph El ciclo cardiaco (The cardiac cycle)[3] After graduation, he started working as a family doctor in Dénia, doing research during his free time, independent from the scientific community and separated from its orthodoxy, Paco understood the gap between academic and true clinical medicine better than most.

Several anatomists had previously focused on the structure of the heart: Andreas Vesalius, Enrico Rueda, Jean-Baptiste de Sénac, Thomas Bartholin, Jules Germain Cloquet and Robert Koch.

[4] From these dissections he discerned that the ventricles of the heart represent a continuous muscular band folded on itself as a helix during the embryonic development.

By folding, the myocardial band crates a septum that separates two ventricular chambers of the heart close to the time of birth.

[7] This procedure aims to improve the shape of the ventricles in dilated hearts by removing part of the excess muscle tissue within the ventricular cavity (ventriculotomy).