A contribution to the surgery of bleeding vessels.

  • Ogston, Alexander, Sir, 1844-1929.
Date:
[1871]
Catalogue details

Licence: Public Domain Mark

Credit: A contribution to the surgery of bleeding vessels. Source: Wellcome Collection.

Provider: This material has been provided by The University of Glasgow Library. The original may be consulted at The University of Glasgow Library.

    1/8
    A CONTRIBUTION TO THE SURGERY OF BLEEDING VESSELS. In a former paper {The Lancet, April 17th, 1869) I adduced a number of experiments bearing on the subject of the com- parative strength of arteries secured by ligature, acupressure, and toi-sion, from which it appeared that ligature was by far the most secure method, resisting the highest column of mercmy (114 inches) brought to bear upon it by the dynamo- meter, while acupressure and torsion resisted on an average respectively a column of 23 5 and 13 inches. These experi- ments were criticised at the time by Mr. Lawson Tait, but I still venture to affirm that they give a fair comparison of the value, as far as security goes, of the different methods. Ex- cepting the assumed normal pressure of blood in living vessels, which was, I believe, stated at too high a figure, the. only factor omitted by them is that of the elasticity of, and additional security furnished by, the portion of tissue included along with the artery between the pin and wire when acu- pressure is performed, and which protection accounts for the inner and middle coats of the vessels being, as is alleged, not cut through by this method. These experiments have not been continued as originally intended. They are sufficient evidence as they stand, and