Aortic Valve
Is in the middle of the heart, surrounded by everything else - William F. Northrup III MD

image by: Ahmed Ellaien
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History in medicine: the aortic valve
Is it possible to write a historical paper on the aortic valve? To modern cardiologists, the aortic valve has always been a fact, with a large range of diagnostic and therapeutic options at our disposition. But how and when was this knowledge built? Who developed the technologies? Standing on the shoulders of our predecessors, we should not take our current knowledge for granted. Insight into how we have come this far will increase our appreciation of all the possibilities we have to treat our patients.
Resources
An overview of aortic valve anatomy: the current understanding
This article provides an overview of the changing understanding of aortic root anatomy, shedding light on the intricate structures that contribute to maintaining unidirectional blood flow and the durability of the aortic valve. From historical perspectives to contemporary microscopic details, the components of the aortic root are explored, including the sinutubular junction, aortic sinuses, valve leaflets, and interleaflet triangles.
Anatomy and Function of Normal Aortic Valvular Complex
The earliest documented interest in the anatomy of the aortic valvular complex stems from the Renaissance, with the description and drawings by Leonardo da Vinci. Leonardo da Vinci had an almost perfect understanding of the physiology of the human heart. But he had no inkling of the circulation of the blood, and the existence of one-way valves was incompatible with the ancient belief that the heart simply churned blood in and out of the ventricles, thus generating heat and 'vital spirit'.
Anatomy of the aortic valvar complex
While there are several publications describing the anatomy of the aortic valvar complex, few specifically focus on the unique challenges presented by transcatheter aortic valve implantation (TAVI). Here you will find a detailed and comprehensive description...
Anatomy of the so-called “Aortic Annulus”
The aortic annulus is a fibrous ring at the aortic orifice to the front and right of the atrioventricular aortic valve and is considered the transition point between the left ventricle and aortic root. The annulus is part of the fibrous skeleton of the heart.
Aortic valve anatomy
The aortic valve is the centrepiece of the heart It lies between the PV, the TV and the MV. It is wedged between the opening of the mitral and tricuspid valves. The normal aortic valve consists of 3 equally sized semilunar leaflets or cusps.
Aortic valve anatomy : A complete exploration
Found a wonderful anatomy teaching resource. A succinct yet comprehensive lecture on Aortic valve .A must-read for anyone who deals with valvular Interventions. For the cardiology fellows , I can tell you can’t find anything better than this. Thanks to Prof Gregory M Scalia and the structural heart disease Australia
Aortic Valve and Root Anatomy The Platform For All Aortic Root Surgery
Is in the middle of the heart surrounded by everything else.
Functional and pathomorphological anatomy of the aortic valve and root for aortic valve sparing surgery in tricuspid and bicuspid aortic valves
The aortic valve (AV) is a three-dimensional structure, with leaflets that are suspended within the functional aortic annulus (FAA). These structures (AV and FAA) are therefore intrinsically connected and disease of just one component can independently lead to AV dysfunction. Hence, AV dysfunction can occur in the setting of entirely normal valve leaflets.
Show me the POCUS
Aortic Valve Anatomy and Function Recap The aortic valve has 3 cusps: left coronary, right coronary and the non-coronary cusp. The valve opens and closes due to changes in pressure between the ventricle and the aorta. On systole, the intraventricular pressure rises above the aortic pressure causing the aortic valve to open and blood moves forward into the aorta. Once the pressure of the left ventricle is lower than that of the aorta, the aortic valve closes.
Structure and anatomy of the aortic root
Understanding the anatomy of the aortic root is particularly relevant in the current era of evolving management strategies including percutaneous and transcatheter therapeutic techniques for valve or device implantations.
Surgical and Pathological Anatomy of the Aortic Valve and Root
The aortic root is defined as the junctional site between the left ventricle and the ascending aorta; it contains the aortic valve leaflets. The interest in the aortic root dates back to the works of Leonardo da Vinci1 and has not faded since. From the surgeon's viewpoint, the aortic root is often considered as part of the aorta, but, by the same token, the root may be considered part of the left ventricular outflow tract
The Aortic Valve
The aortic valve is a complex structure, which consists of different highly specialized components that interact with each other, modifying their shape and size during the cardiac cycle. Following the direction of the flow, we encounter the ventriculoarterial junction, leaflets, sinuses, the crown-shaped annulus, the interleaflet triangles, the commissures, the coronary ostia, and sinotubular junction. Although in anatomical books this complex apparatus takes often the name of aortic valve, we prefer to use the more inclusive name of the “aortic root.” The job of the aortic root is definitely one of the most difficult. It allows forward passage of 70 to 100 mL of blood with each systole in a low ventricle–aorta gradient, prevents diastolic reflux, assures wide flow variations (up to five times), and maintains an optimal coronary perfusion.
The aortic valve c.1512-13
Notes on the valves of the heart and the flow of blood within it, with illustrative drawings; a drawing of a mould for the making of a glass model of the aortic valve.
History in medicine: the aortic valve
This paper on the aortic valve covers five centuries. From Galenus to the first accurate drawing by da Vinci in 1515, it moves on to Harvey who described the cardiac circulation in 1628. This pivotal work was the start of new developments and inventions (stethoscope by Laennec, 1816) that progressively enabled diagnosis and treatment of aortic valve disorders.
Radiopaedia
The valve has left, right, and posterior cusps, the bases of which attach around the valve orifice to a fibrous ring or annulus, forming part of the fibrous skeleton of the heart. The cusps attach to each other and to the annulus at the commissures.
StatPearls
The aortic valve is a semilunar valve (diameter of about 20 mm) that generally has three leaflets. Common congenital differences include a bicuspid valve. More rarely, unicuspid valves can be present. The valve can be visualized via ultrasound. The valve divides one of the highest pressure differentials of the cardiopulmonary system and, as such, is subject to wear and tear injury.

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