Journal: The Luventicus Academy Reports (Luv. Acad. Reps)

ISSN 1667-5088 (online)

ISSN 1667-5061 (printed)

Volume: 2004

Issue: 1 (June)

Paper: 1

Pages: 1-14

Internal use code: 04LAR001

PDF file: ftp.luventicus.org/papers/04LAR001.pdf ^PREPRINT

Title: Medical relevance of the three types of coronary intramural branches detected in human ventricles

Authors: Juan Carlos Miguel; Mario Mattara; Ricardo Ponso; Alberto Enrique D’Ottavio

Abstract: The present paper reports new architectonical patterns in relation to the homogeneous tuft-like arrangement described in current bibliography. Injections of acrylic, followed by partial or total corrosions with 50% hydrochloric acid, were accomplished in 30 autopsied and cryopreserved healthy young adult male and female human hearts. The stereoscopic microscopic study revealed two new intra-myocardial arrangements: the "dendriform" and "pectinate" types. Likewise, a differential distribution of these types were identified in ventricular walls and in interventricular septum. Morphometrically, the three types branches revealed variable distances among the successive emergences from the original artery when microscopically measured. The remaining morphological and morphometrical patterns appeared similar in the three types. No differences were registered among sexes and the described distribution was nearly the same in all the studied organs. By employing a mathematical model, possible functional differences are hypothesized for further experimental verification.

Keywords: Anatomy; Fluid Mechanics; human heart; coronary circulation; ventricle walls