A series of lectures on the most approved principles and practice of modern surgery, principally derived from the lectures / delivered by Sir Astley Cooper ... Interspersed with numerous cases.

  • Jones, Charles Williams.
Date:
1821
Catalogue details

Licence: Public Domain Mark

Credit: A series of lectures on the most approved principles and practice of modern surgery, principally derived from the lectures / delivered by Sir Astley Cooper ... Interspersed with numerous cases. Source: Wellcome Collection.

    22/470 (page 6)
    applied causes paralysis; it has no tiie effect ; neither has digitalis. | The effects of heat on the body are universally stimulant. The natural temperature of the blood, as I have previously observed, is 98° of Fahrenheit’s thermometer in the human body. A person, was put into a vapour bath, heated to 202°, it raised the pulse to 120. In another, whose pulse was 75, it rose to 164, A third person’s pulse, exposed to the same degree of heat, rose only to 145, Dr. Fordyce went into a vapour bath of 120°; his pulse rose to 145: going into a dry heat of 254°, he supported it much better. The effect of heat ina warm climate produces quicker growth, and premature old age; the mhabitants arrive at puberty at 1] and — 12, and seldom live to 60. In more temperate climates, this does not happen till from 18 to 21, and life is prolonged from 70 to even an hundred years and upwards, The effect of heat on the pulse is to produce a quicker and fuller action; the ex- ternal veins dilate, and are seen apparently distended in the warm bath, which always produces perspiration, and is a general stimulus; it has great power in exciting the absorbent vessels, and in weakening the body. In twenty minutes this power extends to the production of syncope: in five minutes it only increases the general tone of the vessels. ‘The hot bath, from 105 to 110 degrees, is productive of uncommon benefit in some scrophulous cases. Violent heat causes blisters to arise; a more violent still, excoriation and detachment of the cuticle; still greater, death of the part and mortification: and of these three stages of burns, the second is: the most dangerous, as I shall explain hereafter, on burns and scalds. The patient dies of excessive irritation when the enivinrel is ‘removed extensively, in a few hours. Heat when applied to the body, getierally with moisture, as in a poultice, relieves, by exciting perspiration of the part, and unloading the capillary vessels; with the same view, fomentations are used: and to excite the absorbent vessels, dry heat by friction or otherwise, tends to the same effect. Of Cold; its effects are very interesting; though it does diminish, yet sometimes it increases the action of the heat.