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Volume 37, Issue 1
Displaying 1-11 of 11 articles from this issue
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MUNEYASU SAITO, SEIICHIRO MOTOHARA, AKINA HIRAKAWA, KOICHI OGINO, MASA ...1973 Volume 37 Issue 1 Pages 1-11
Published: April 20, 1973
Released on J-STAGE: April 14, 2008
JOURNAL FREE ACCESSA new method for determining intracardiac shunts in patients with congenital heart disease by means of analog computer simulation of radiocardiogram, precordial radioisotope-dilution curve, is described. The whole circulatory system was represented by a closed loop of four compartments; that is, the right heart, lung, left heart and body, which were approximated by first order systems with or withour transport lags. Mathematical equations describing the transportation processes of the injected radioisotope in these four compartments, taking intracardiac shunts into consideration, were given and an analog simulation circuit of radiocardiogram was composed. The values of pulmonary blood flow, systemic blood flow and %L-R shunt in 28 patients with congenital heart disease (ASD : 21, VSD : 3, PDA : 4) obtained by the analog computer simulation of radiocardiogram were in good agreement with those obtained by the Fick method, the correlation coefficient being 0.922, 0.814 and 0.942, respectively. Pulmonary blood volume in these patients was shown to increase in proportion to the pulmonary blood flow (r=0.749, N=87, p<0.001). Considering the safety and simplicity of the technique, this method is advantageous in quantitative diagnosis of congenital heart disease.View full abstractDownload PDF (1240K) -
YUTAKA KONISHI, KOKI ABE, OSAMU SHIRAI, MAKOTO HAYASHI, RYUSUKE MURAOK ...1973 Volume 37 Issue 1 Pages 13-27
Published: April 20, 1973
Released on J-STAGE: April 14, 2008
JOURNAL FREE ACCESSA total of 20 patients with suspected coronary artery disease received intracoronary injection of 131I-MAA, as the safety of this method was confirmed by animal experiments. The radio-nuclide images of the myocardium obtained with scintillation camera were stored on 1600 word memory and transferred to a computer-compatible magnetic tape recorder. The quality of the images were improved by computer processing, i.e. "nine-point" smoothing and iterative approximation. Myocardial computer scintigrams by this data processing clearly visualized the distribution of the coronary blood flow and made it easy to demonstrate ischemic myocardium. From our experiences, we concluded that 131I-MAA myocardial scintigraphy combined with coronary angiography would certainly provide much more informations concerning the diagnosis and management of ischemic heart disease .View full abstractDownload PDF (1715K) -
TOSHIHIDE KUMAZAKI, OSAMU SAKAKIBARA, YOSHIMASA SUZUKI, KAZUAKI MATSUM ...1973 Volume 37 Issue 1 Pages 29-30
Published: April 20, 1973
Released on J-STAGE: April 14, 2008
JOURNAL FREE ACCESSInfected permanent pacemakers are not necessarily removed, because infection and dehiscence occurring at the site of pacemaker implantation may be successfully managed using conservative measures. The experience of a patient who was treated conservatively and successfully, is reported .View full abstractDownload PDF (284K) -
EI MATSUNAGA1973 Volume 37 Issue 1 Pages 33-34
Published: April 20, 1973
Released on J-STAGE: April 14, 2008
JOURNAL FREE ACCESSDownload PDF (312K) -
KATSUHIKO MORI, MASAHIKO ANDO, ATSUYOSHI TAKAO1973 Volume 37 Issue 1 Pages 35-39
Published: April 20, 1973
Released on J-STAGE: April 14, 2008
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MASUYOSHI NAGANUMA, NORIO MATSUO, MASAHIRO OSHIMA1973 Volume 37 Issue 1 Pages 41-45
Published: April 20, 1973
Released on J-STAGE: April 14, 2008
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HIROHISA KATO, YOSHIAKI YOSIZAWA, KOHJI UEDA, TOKURO NAGAYAMA1973 Volume 37 Issue 1 Pages 47-51
Published: April 20, 1973
Released on J-STAGE: April 14, 2008
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TSUTOMU INOH, MOTOO HATADA1973 Volume 37 Issue 1 Pages 53-59
Published: April 20, 1973
Released on J-STAGE: April 14, 2008
JOURNAL FREE ACCESS129 cases with familial heart disease of 392 members investigated from 33 families in Japanese were analyzed from the view of points of clinical and hereditary feature and results were compared with that in the caucasian seen in literatures. Subjects in this study were classified in 3 types, namely, with cardiomegaly (type Ia), without cardiomegaly (type Ib), hypertrophic obstructive cardiomyopathy (type II) and rare type (type III) including familial heart block, with QT prolongation in ECG and familial WPW syndrome . The morbidity in both sexes was similar. The aggravation of clinical feature by aging was observed and high incidence of sudden death was postulated. Age at beginning of the disease and death became earlier in the descendants in the direct line generation after generation. Analysis on the hereditary process disclosed the autosomal dominat and not sex-linked heredity in each type. Rusults obtained from Japanese were almost similar to that of caucasian in literatures.View full abstractDownload PDF (661K) -
GORO MIMURA, MINORU KODERA1973 Volume 37 Issue 1 Pages 61-67
Published: April 20, 1973
Released on J-STAGE: April 14, 2008
JOURNAL FREE ACCESSUsing the genetic statistical method, the control mechanism of blood pressure was studied and the following results were obtained. 1) The frequency distribution of blood pressure showed normal distribution, hense the blood pressure was most probably regulated by polygenes. 2) The blood pressure is divided into three categories, hypertension, normotension and hypotension from the clinical points of view, but it is imposible to regard them as heterogenous diseases by reason of polygene. 3) The heritability of blood pressure can be estimated as 0.63/ 4) The number of effective factors which control blood pressure are presumed to be approximately ten.View full abstractDownload PDF (668K) -
HIROSHI SEKIMOTO, TSUGUHIKO NAKAI1973 Volume 37 Issue 1 Pages 68
Published: April 20, 1973
Released on J-STAGE: April 14, 2008
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NOBORU YAMAZAKI1973 Volume 37 Issue 1 Pages 69-76
Published: April 20, 1973
Released on J-STAGE: April 14, 2008
JOURNAL FREE ACCESSTo study hereditary and environmental factors on the development of myocardial infarction, five hundred and thirty men and wemen with myocardial infarction were compared with an age and sex-matched series of 530 healthy subjects. 1. A much greater incidence of myocardial infarction was noted when one or more among parents and sibling had a history of hypertension, apoplexy, ischemic heart disease or sudden death than when neither parents nor sibiling suffered from these disease. 2. Combinations of two factors - (1) heredity and hypercholestermeia, (2) hypertension, and hypercholesteremia, (3) cigarette smoking and hypercholesteremia, (4) diabetes mellitus and hypercholesteremia revealed a marked range of risk. 3. The persons classified in managerial, professional and clerical occupation had a much higher incidence rate than those in the other occupations. 4. The dietary habits of excessive intake in total fats, sugar, and salt were correlated significantly to the development of acute myocardial infarction. 5. There was a significantly increased incidence of acute myocardial infarction on snowy day, cold weather and sudden changes in temperature. 6. The highest monthly incidence was Descember and the lowest was Auguts. The seasonal difference became less and less.View full abstractDownload PDF (656K)
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