順天堂医学
Online ISSN : 2188-2134
Print ISSN : 0022-6769
ISSN-L : 0022-6769
20 巻, 4 号
選択された号の論文の18件中1~18を表示しています
目次
Contents
特集:各科からみた糖尿病
原著
  • -偏心荷重を中心として-
    鈴木 進
    1974 年 20 巻 4 号 p. 465-483
    発行日: 1974/12/10
    公開日: 2014/11/22
    ジャーナル フリー
    The experiment was conducted on forty-one lower lumbar intervertebral discs of 21 freshly autopsied mature sheep and 10 lower lumbar intervertebral discs from five fresh human cadavers. The results are summarized below. 1) In both the sheep and human cadavers the specimens consisting of one unit of vertebradisc-vertebra combination without a posterior metal fixation, the highest intradiscal pressure was noted with anterior loading (flexion) of the vetebral body, followed by posterior loading (extension) and then by neutral loading, in that decreasing order. 2) In the sheep specimens which consisted of four vertebrae and three connecting discs without a posterior fixation, the magnitude of the intradiscal pressure produced by the load on the upper and middle discs was in the following descending order according to the site of loading : vertebral arch>lateral portions>anterior portion>posterior portion>central portion. In the lower disc the order was : vertebral arch>lateral portion>posterior portion>central portion>anterior portion. A study of the magnitude of intradiscal pressure according to the level of discs revealed that the pressure produced by either central or posterior loading was highest in the lower disc, followed by the middle and the upper discs in that descending order. With anterior loading or loading of the vertebral arch the order was : upper disc>middle disc?lower disc. 3) A study of the stress distribution against the compressive load showed that 50 to 60% of the load was born by the nucleus pulposus. 4) The intradiscal pressure produced was proportional to the amount of load applied. 5) Both in sheep and humans the intradiscal pressure produced by any type of eccentric loading was lower with a posterior metal plate fixation than without it. 6) With any type of eccentric loading the discs adjacent to the fixed disc showed an intradiscal pressure value of about 10% (average : 6%) lower than a value for a disc without fixation.
  • -特に水分電解質異常喪失症例の管理を中心に-
    尾崎 元
    1974 年 20 巻 4 号 p. 484-517
    発行日: 1974/12/10
    公開日: 2014/11/22
    ジャーナル フリー
    The replacement therapy for abnormal fluid loss due to salivary and gastric aspiration was studied in pediatric surgical patients by balance study. Sixty two cases of newborn babies and infants who underwent surgery and 30 cases of normal newborn babies were used for the measurement of sodium, potassium and chloride. Flame photometer (model 143, IL Co. U.S.A.) and Buchler-Cotlove's chloride meter (automatic titrator) were used for their analysis. A. The principles of this tube-feeding method were as follows: 1) bowel sound should be heard; 2) by X-ray examination diminution of gastric gas and gas movement in bowel should be revealed; 3) gastric aspiration should be decreased; 4) gastric aspiration contains no coffee-grounds material and was not greenisch or thicken; and 5) no abnormal incerase of aspiration should be observed B. Method: 1) Gastric contents were aspirated through nasogastric tube in certain interval (for example, every 3 hrs.). 2) Replacement of certain or total volume of gastric contents was done after determination of its volume and nature. 3) If this volume was less than the expected volume milk or electrolyte solution were given for the replacement of gastric contents. The replacement therapy utilizing the above techiques for abnormal fluid loss due to congenital esophageal atresia, congenital duodenal atresia, congenital hypertrophic pyloric stenosis etc., was easy, safe and available to physiologically maintain the water and elec trolyte blance during the care after surgical procedures of newborn babies and infants.
  • 層別心筋張力検出の基礎的研究及び中層輪状筋の心筋構築上の役割について
    酒井 克彦
    1974 年 20 巻 4 号 p. 518-531
    発行日: 1974/12/10
    公開日: 2014/11/22
    ジャーナル フリー
    Since 1966, we have been measuring the local tension of the outer surface of the myocardium by using an arched semiconductor straingauge. When it comes to discuss contractility of the myocardium, the attention should be concentrated on the myocardial architecture which is consisted of three layers, the outer oblique, mid circular and inner oblique layer with spiral arrangement. Okada and Nishijo in our institute have studied the morphological changes in the mid circular muscle of hypertrophied heart. The mid circular muscle plays the most vital role to squeeze out blood as a pump and dysfunction of it is considered to cause cardiac failure. In order to study the cardiodynamics, it is desirable that the tension curve should be obtained directly from each myocardial layer and fibre. For the purpose of this, a newly divised transducer is introduced to elicit the tension curve selectively from mid circular musle. It is made of four hard needles of sewing machines fixed to both edges of the previous small and light straingauge arch. The tension curve is recorded applying the legs of needle iust to the direction and depth of middle layer of left ventricular free wall. Another needle typed transducer is also manifactured to measure the intramyocardial pressure at the given site. The rotating and vibrating needles are given the changes in damping by myocadial contraction, and to perceive the changes in voltage of secondary coil. The constant was determined by silicon oil with known visicosity coefficient, the quantitative Measurement of intramyocardial pressure was obtained. The intramyocardial pressure obtained was 100mm Hg/max, not exceeding the intraventricular pressure. The author measured the changes in tension of mid-curcular muscle of canine heart with pressure and volume loaded in a short period using an arched transducer. In a control group of canine heart, the legs of needle were inserted to the depth of certain myocardial fibre along its running direction. With increase in depth, the magnitude of the tension curve and the maximum velocity of dT/dt were increased. Greater magnitude of tension curve was attained when the arch was especially fixed along the mid-circular muscle. Analysing these (tension) curves, it is possible that the tension from each layer could be detected. In acute pressure load, the magnitude of tension is unchanged or slightly diminished and Max. dT/dt is increased. In volume load, however, both decreased. These results as certained the morphological changes in the autopsied heart. The Experimentally produced cardiogenic shock by ligation of coronary arteries demonstrates the changes in diastolic phase, namely delay in tension curve at diastole. In other words, that decrease in compliance of the myocardium is (reasonably) estimated to induced acute power failure of the heart.
  • --その (2), 主要疾患 (症状群) の脳波所見と年齢, 性別との関連について-- (第2報)
    熊本 亮, 平沼 博
    1974 年 20 巻 4 号 p. 532-544
    発行日: 1974/12/10
    公開日: 2014/11/22
    ジャーナル フリー
    The relations of EEG findings at the time of initial examinations to the age and sex of subjects were studied. 1. The total subjects consisted of a larger number of males (3014) than females (1986), and the subjects in each desease also consisted of a larger number of males. 2. The incidence of EEG abnormalities in patients with epilepsy, those with head injury, those with headache as chief complaint and those with whiplash syndrome was lowest in the 40's age group. Among those who were younger than 40, younger the age, higher the incidence. Among those older than 49, older the age, higher the incidence. 3. The incidence of paroxysmal patterns in patients with epilepsy, those with head injury and those with headache as chief complaint was highest in the group of not older than nine. Among those who were older than nine, older the age, lower the incidence. 4. The incidence of EEG abnormalities in female patients with epilepsy, those with head injury of Araki I type, those with nervousness and neurosis and those with whiplash syndrome was significantly higher than that in the respective male counterparts, and the incidence of the abnormalities in female patients with headache as chief complaint also was higher than that in male patients with the same complaint. This difference between the two sexes was especially distinct in the 20's and younger age groups. 5. The incidence of paroxysmal patterns in female patients with epilepsy, those with head injury and those with headache as chief complaint was significantly higher than that in the respective male patients, and this difference between the two sexes was particulary distinct in the 20's and younger age groups.
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