A Theoretical and Practical Treatise Upon the Ligature of Arteries (Paperback)

This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1832. Excerpt: ... PART II. GENERAL PRINCIPLES. To produce complete suspension of the circulation of an artery, is the first indication which must be fulfilled towards effecting its obliteration. The modes by which this may be accomplished are various: 1. The vessel may be merely flattened, its opposite parietes being placed in contact with each other, but without lesion of its tunics: 2. The artery may be flattened or puckered, the internal and middle membranes being ruptured partially: 3. The artery may be uniformly drawn together, the internal and middle tunics being cut through in a clear and regular section. (appendix F.) For the purpose of avoiding useless and tedious repetitions, we shall in the first place describe the changes which take place in an artery when it is no longer permeable by the blood, in consequence of the gathering together, or forced approximation of its parietes, its internal membranes being divided in an even manner. This case has been intentionally selected, because it is followed by a greater number of phenomena, the succession and various changes of which take place more rapidly, and exhibit more marked characters than those of others: the description, therefore, of these being once given, when the first and second modes of suspending arterial circulation are treated upon, it will only be necessary to adopt the subtractive method of proceeding. This I am aware is not an usual or generally a logical method, as it is better to pass from the simple to the compound, or to make addition; but in the present case, I believe that greater advantage will be obtained by pursuing the opposite course in consequence of the difficulties of ascertaining and describing direct phenomena when studied in the most simple cases. As an artery cannot be tied until it...