Propagación eléctrica en los mecanismos de torsion y succión en un corazón de tres tiempos

Trainini, Jorge C.; Elencwajg, Benjamin; Cabanillas, Néstor López; Herreros, Jesús; Lago, Noemí; Lowenstein, Jorge

doi:10.7775/rac.es.v83.i5.6732

Cited by 5 publications

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“…This muscular helicoid is composed of muscular layers with skewed directions that allow the muscular band to act as a multiplying belt generating a continuous force as the fibers slide over each other. The anatomical interpretation developed in this work correlates with previous work on cardiac mechanics [11][12][13][14][15], which allows explaining the structure-function correlation.…”

Section: Discussionsupporting

confidence: 73%

“…Phylogenetic evolution determines an anatomy of the heart that has correspondence with ventricular mechanics. Electrical propagation with three-dimensional electro anatomical mapping researched by us in humans [11][12][13][14][15] explains this correspondence between structure and cardiac function.…”

Section: Resultsmentioning

confidence: 99%

“…In view of the criticism or indifference to the helical myocardial band proposed by Torrent Guasp, which we believe is due to lack of information and the necessary anatomical technique to perceive it, we can oppose its confirmation through: 1) heart dissection; 2) new imaging procedures obtained with magnetic resonance by diffusion tensor [6][7][8][9][10]; and 3) recent electrophysiological studies performed with three-dimensional electroanatomic mapping [11][12][13][14][15].…”

Section: Discussionmentioning

confidence: 99%

“…Prior work before unfolding the muscle band consists in separating the atria from the ventricles in a very simple maneuver that demonstrates the different evolutionary origins between both types of chambers. Then, the aorta and the pulmonary artery are cut three centimeters from their origin, separating the attachment between them; finally, a longitudinal incision is done on the superficial fibers (interband or aberrant fibers) [6,13] extending transversally along the anterior wall of the ventricles. Prior boiling of the anatomical piece allows the easy performance of all these steps.…”

Section: Methodsmentioning

confidence: 99%

“…The analysis of the anatomical description of ventricular myocardial band and the ensuing electrophysiological research in patients performed by us indicates the need of providing a clear interpretation of some fundamental aspects. The left ventricular endo and epicardial electrical activation sequence has been studied using three-dimensional electroanatomic mapping with navigation system, enabling three-dimensional anatomical representation with activation maps and electrical propagation [11][12][13].…”

Section: Functional Aspects Of the Ventricular Myocardial Bandmentioning

confidence: 99%

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2019

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Section: Discussionsupporting

confidence: 73%

Section: Resultsmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Functional Aspects Of the Ventricular Myocardial Bandmentioning

confidence: 99%

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2019

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Helical structure of the ventricular myocardium. A narrative review of cardiac mechanics

et al. 2023

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To date, the ventricular myocardial band is the anatomical‐functional model that best explains cardiac mechanics during systolic‐diastolic phenomena in the cardiac cycle. The implications of the model fundamentally affect the anatomical interpretation of the ventricular myocardium, giving meaning to the direction that muscle fibers take, turning them into an object of study with potential clinical, imaging, and surgical applications. Re‐interpreting the anatomy of the ventricular muscle justifies changes in the physiological interpretation, from its functional focus as a fiber unraveling the mechanical phenomena carried out during systole and diastole. We identify the functioning of the heart from the electrical and hemodynamic point of view, but it is necessary to delve into the mechanics that originate the hemodynamic changes observed flowmetrically, and that manifested during the pathology. In this review, the mechanical phenomena that the myocardium performs in each phase of the cardiac cycle are broken down in detail, emphasizing the physical displacements that each of the muscle segments presents, as well as a vision of their alteration and in which pathologies they are mainly identified. Visually, an anatomical correlation to the echocardiogram is provided, pointing out the direction of the segmental myocardial displacement by the strain velocity vector technique.

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Helical Structure of the Ventricular Myocardium. A Narrative Review of Cardiac Mechanics.

Antùnez-Montes

Olavarría

et al. 2022

Preprint

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Introduction. The concept of ventricular anatomy as a single muscular band was initially described by Francisco Torrent-Guasp in 1972 and since then, there have been multiple novel contributions to the understanding of the morphology and function of the heart. To date, this concept has been supported and denied by multiple groups of professionals reflecting both the enthusiasm and resistance to the new concept of the single muscle band model. Currently, the single muscular band is the model that meets all the requirements to explain the performance of cardiac mechanics, and its distinctive feature to determine the characteristics of the structure.

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Propagación eléctrica en los mecanismos de torsion y succión en un corazón de tres tiempos

Cited by 5 publications

References 0 publications

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Helical structure of the ventricular myocardium. A narrative review of cardiac mechanics

Helical Structure of the Ventricular Myocardium. A Narrative Review of Cardiac Mechanics.

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