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The classic view of cardiac anatomy relates to contracting and relaxing, or more specifically, constricting to narrow and eject, and dilating to wide… - Gerald Buckberg
" "The classic view of cardiac anatomy relates to contracting and relaxing, or more specifically, constricting to narrow and eject, and dilating to widen and fill. This sequence was defined by William Harvey. However, the predominant motion of the heart is... rather shortening and narrowing. There are four fundamental motions... narrowing, shortening, lengthening, and widening... a downward twisting of the muscle fibers... shorten and thicken and thereby make the heart eject. This twisting or torsion was described by Borelli, in the 1600s, to simulate the wringing of a rag. ...[P]rogression of contraction into the ascending segment ...results in twisting and thickening in an opposite direction. This sequence is followed by relaxation to allow the ventricle to fill during the remainder of the diastolic phase. ...[T]he heart twists to eject and reciprocally twists to fill in a clockwise and counterclockwise manner... twisting and untwisting of the conical heart muscle in reciprocal directions. ...[T]he predominant action is shortening and lengthening, rather than narrowing and widening... ejection during shortening and suction to fill during lengthening...
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About Gerald Buckberg
(September 29, 1935 - September 20, 2018) was a Distinguished Professor of Surgery, Division of Cardiothoracic Surgery, at the . His research interests initially centered in the area of myocardial protection and led to the introduction of blood , which is currently used by over 85% of surgeons in the United States and 75% of surgeons worldwide for adult and pediatric heart operations. He was a member of multiple surgical societies, including the , , and the .
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Additional quotes by Gerald Buckberg
Stopping the heart is accomplished by shutting off its blood supply (a process called ). I discovered blood ... We initally realized the return of regular blood to a heart that has been without blood supply, will create severe damage. We then discovered how to prevent this injury by using a blood cardioplegic solution that contains selected chemical ingredients (including key amino acids...)that safely protects the heart... [E]ffectiveness... depended upon their arriving at specific locations... But many of our patients had narrowed arteries... This barrier was overcome by delivering it in a "backward direction" via the heart’s main vein... further enhanced by administering it at different temperatures during the beginning and end of the operation.
[A] normal heart... is twisting and it's very happy. But... a sick heart... it's dilated and not very efficient. ...What you have to make, is a basketball into a football. ...[A]s you do this operation, it's... not very complicated. Here's the dilated ventricle with the scar in it. We basically open the scar, put a little stitch in there, bring the edges together, throw a patch in there and fix the ventricle. ...The job is to make abnormality normality... restore nature, restore the natural form.
[I]f you look at the helical heart, you see a hidden harmony of spirals. You see the DNA... the blueprint... You see the ventricle... You see that you have ejection and suction with the spirals going in different directions, with the spirals within spirals. You see it in the microscopic structure of the heart, the different forms of the heart called the , , , <nowiki>[</nowiki>]... It's all the same. It's a reproduction of what is normal and very efficient.
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