Supraventricular tachycardia (SVT) causes episodes of a fast heartbeat. 'Thumping heart' sensations (palpitations) and other symptoms may occur during each episode. Regular medication can prevent episodes of SVT. Another treatment option in some cases is to destroy a tiny part of the heart that triggers the SVT.
Definition of scatology. 1  1 : interest in or treatment of obscene matters especially in literature. 2  2 : the biologically oriented study of excrement (as for taxonomic purposes or for the determination of diet)
Teratology is the study of abnormalities of physiological development. It is often thought of as the study of human congenital abnormalities, but it is broader than that, taking into account other non-birth developmental stages, including puberty; and other non-human life forms, including plants.