Dental and Oral X-Ray Diagnosis

Abstract

pituitary antidiuretic hormone, renal hlemodynamic factors, and the secretion of adrenocortical salt-retaining hormones. Of these, the first and the third are, the author believes, by far the most important and what happens to salt and water balance during the postoperative period is, in his view, largely determined by the relationship between these two. He suggests that if the release of the antidiuretic hormone is only short-lived and that of the salt-retaining corticoids delayed in onset, the salt which is retained on the day of operation will on the day after operation be excreted, with diuresis, while salt and water retention will occur during the day after that. The pattern will therefore be one of separated retention. If, on the other hand, the secretion of antidiuretic hormone lasts until the day after operation and there is an overlap with the secretion of salt-retaining corticoids, then on the day after operation a pronounced diuresis will not occur, and the pattern of sodium retention will be distinct or coalescent. Unfortunately at present no direct evidence is adduced for this interesting hypothesis, which does, however, provide a ready explanation of much of what is seen in practice.With the use of intravenous replacement has come the need to study the maintenance of the patient over long periods of time by means of intravenous ailments. Full consideration of these aspects lies beyond the scope of the volume under review but they are lightly touched upon, and the big problem of the negative nitrogen balance in patients maintained on intravenous electrolyte solutions and 5 % glucose, is briefly discussed.The book is well illustrated with clear diagrams, into the construction of which much thought has clearly gone. The writing is on the whole satisfactory, though occasionally the construction of the sentences makes the readingXa little hesitant. The index is satisfactory and the production is good.In the words of Thomas Gale (1586) "The restoring of that which is lost, is properly the office of nature, as to engender flesh, blood, and such lyke partes as are to be engendered. Notwithstanding the chirurgion herein is nature's minister." To the surgical ministers of nature Mr. Le Quesne's book is to be recommended, and particularly to those whose knowledge of modern ideas and practice with respect to fluid balance needs adding to or bringing up to date. Dental and Oral X-ray Diagnosis.