Japanese Heart Journal
Online ISSN : 1348-673X
Print ISSN : 0021-4868
ISSN-L : 0021-4868
17 巻, 6 号
選択された号の論文の13件中1~13を表示しています
  • Tadashi KAMBE, Tadayuki KATO, Norio HIBI, Yoichi FUKUI, Takemi ARAKAWA ...
    1976 年 17 巻 6 号 p. 691-705
    発行日: 1976年
    公開日: 2008/12/09
    ジャーナル フリー
    The purpose of the present paper is to describe the origin of the systolic murmur in pulmonic stenosis and to discuss the diagnostic possibilities of intracardiac phonocardiography.
    Right heart catheterization was carried out with the aid of a doublelumen A.E.L. phonocatheter on 48 pulmonic stenosis patients with or without associated heart lesions. The diagnosis was confirmed by heart catheterization and angiocardiography in all cases and in 38 of them, by surgical intervention. Simultaneous phonocardiograms were recorded with intracardiac pressure tracings.
    In valvular pulmonic stenosis, the maximum ejection systolic murmur was localized in the pulmonary artery above the pulmonic valve and well transmitted to both right and left pulmonary arteries, the superior vena cava, and right and left atria. The maximal intensity of the ejection systolic murmur in infundibular stenosis was found in the outflow tract of right ventricle. The contractility of the infundibulum greatly contributes to the formation of the ejection systolic murmur in the outflow tract of right ventricle. In tetralogy of Fallot, the major systolic murmur is caused by the pulmonic stenosis, whereas the high ventricular septal defect is not responsible for it. In pulmonary branch stenosis, the systolic murmur was recorded distally to the site of stenosis.
    Intracardiac phonocardiography has proved useful for the differential diagnosis of various types of pulmonic stenosis.
  • Pavel JEBAVÝ, Jaromír RESSL, Juraj FABIÁN, Ruzena ...
    1976 年 17 巻 6 号 p. 706-716
    発行日: 1976年
    公開日: 2008/12/09
    ジャーナル フリー
    The left ventricle (LV) was catheterized without X-ray control by a thin teflon catheter introduced through the right brachial artery. Shaping of the catheter allowed entering LV in more than 95% of patients and its safe placement in LV cavity without causing ectopic beats or other complications.
    Pressures in the pulmonary circulation (_??_AP, PAPd, PCW) do not reflect left ventricular filling pressure (LVEDP) precisely, particularly when the LVEDP is elevated. The assessment of pathological LV filling pressure from the pulmonary arterial pressures shows, that there was high percentage of false negative results at rest, but during exercise the abnormal values of LVEDP could be predicted from the pulmonary artery pressures. However, PCW or PAPd cannot be considered as identical with LVEDP.
    For the rough assessment of apparent left ventricular failure it is sufficient to measure pressures in the pulmonary artery. However, for the exact study, the LV should be catheterized. The described bed-side method fulfill all requirements: it is simple, convenient and safe ; the pressure is recorded accurately ; the procedure can be repeated and is there fore recommended for wider use.
  • A Study Using His Bundle Electrogram During Carotid Sinus Compression
    Hiromitsu TANAKA, Kohji NURUKI, Yoshifumi TOYAMA, Hiromitsu SASAKI, Ta ...
    1976 年 17 巻 6 号 p. 717-726
    発行日: 1976年
    公開日: 2008/12/09
    ジャーナル フリー
    His bundle electrographic examination was performed during carotid sinus compression as well as atrial pacing in a patient who exhibited intermittent left bundle branch block (LBBB) and first degree A-V block. LBBB was observed at the corrected RR intervals below 920 msec and above 1600 msec. The QRS complexes showed normal intraventricular conduction between these 2 values. The critical cycle lengths could not be determined when ordinary RR intervals were used. The HQ interval remained constant at 70 msec regardless of the pattern of intraventricular conduction. It was demonstrated that the patient had both tachycardia-and bradycardia-dependent LBBB with first degree A-V block due to HV block. The authors believe this to be the first case of tachycardia-and bradycardia-dependent bundle branch block studied by His bundle electrography. The important role of His bundle recordings and carotid sinus compression in the diagnosis of rate dependent intraventricular conduction disturbance was stressed and possible mechanisms underlying this rare condition were discussed.
  • Jami G. SHAKIBI, Iraj ARYANPUR, Mansoureh PAYDAR, Ali YAZDANYAR, Bijan ...
    1976 年 17 巻 6 号 p. 727-730
    発行日: 1976年
    公開日: 2008/12/09
    ジャーナル フリー
    We previously reported that pulmonary artery pressures can be assessed in children with chronic rheumatic mitral valve disease by meas-uring right maximum spatial vector from Frank vectorcardiogram. To simplify the calculation, pulmonary artery systolic pressure was correlated with maximum negative deflection on Frank scalar X-lead (SX), maximum negative deflection on scalar Z lead (SZ), sum total of SX and SZ (SX+SZ) and combined SX and SZ. The patient material consisted of 30 children with chronic rheumatic mitral valve disease, aged 8-141/2 years. Eleven were male and 19 were female. Sixteen had mitral stenosis, 8 had mitral regurgitation, and 6 had combined mitral regurgitation and stenosis, documented by cardiac catheterization and angiocardiographic study. The results showed a significant correlation between pulmonary artery systolic pressure and SX (r=0.782). As calculation of SX is considerably easier and less time consuming than that of right maximum spatial vector, this simplified method is preferable to right maximum spatial vector for prediction of the pulmonary artery systolic pressure of children with pulmonary hypertension due to chronic rheumatic mitral valve disease.
  • Masaya SUGIURA, Shinichiro OHKAWA, Keisuke HIRAOKA, Takao OKIMOTO, Kei ...
    1976 年 17 巻 6 号 p. 731-741
    発行日: 1976年
    公開日: 2008/12/09
    ジャーナル フリー
    A total of 6 cases of sick sinus syndrome were presented, including 2 cases of sinoatrial (SA) block and 4 cases of bradycardia-tachycardia syndrome. There were 2 men and 4 women, and their ages ranged from 69 to 91 years. Electrophysiological studies were performed in 3 cases, showing positive overdrive suppression in 1 and normal atrioventricular (AV) conduction in 3. Syncopal attacks were found in 4 cases, and 2 cases died suddenly. Histological examination of the SA node and AV conduction system disclosed (1) marked reduction of the SA nodal muscle fibers by 70 to 80%, (2) moderate to marked proliferation of connective tissues in the SA node, and (3) moderate fibrosis in part of the left bundle branch. The SA node artery was patent.
  • Ryo KATORI, Kozui MIYAZAWA, Shigeaki IKEDA, Kunio SHIRATO, Itaru MURAC ...
    1976 年 17 巻 6 号 p. 742-752
    発行日: 1976年
    公開日: 2008/12/09
    ジャーナル フリー
    Twenty-one patients with various heart diseases undergoing the coronary sinus catheterization had myocardial blood flow studies before and during isometric handgrip exercise. At 30% of the maximal voluntary contraction (MVC), handgrip increased both coronary sinus blood flow by 19.8% and myocardial O2 consumption by 21.0% on the average as compared to those at rest. At 20% of MVC, the increase of the both was slight except for 1 case. The increase in coronary sinus blood flow significantly correlated to the increase of myocardial O2 consumption. Lactate extraction ratio decreased to less than 10% during handgrip in 4 of 19 cases studied despite of normal values at rest. Lactate extraction ratio had significantly positive correlations with coronary sinus blood flow and myocardial O2 consumption during handgrip, while there were not significant ones at rest. It is suggested that isometric handgrip exercise is useful as a stress test for detection of myocardial ischemia in the heart of coronary artery disease.
  • Zijad DURAKOVIC, Luka STILINOVIC, Ivan BAKRAN
    1976 年 17 巻 6 号 p. 753-759
    発行日: 1976年
    公開日: 2008/12/09
    ジャーナル フリー
    The effects of dichlorotetrafluoroethane, Arcton 114, on the heart of rats were examined in 17 white rats. The animals inhaled diehlorotetrafluoroethane for I or 1.5 min. Severe electrocardiographic changes including marked bradycardia, atrioventricular heart block of the second degree and complete heart block were registered. Cardiac standstill appearing 11 to 31 min after inhalation was a death cause in all rats. These results are similar to our previous results concerning the effects of dichlorodifluoromethane (Arcton 12) on the heart of rats.
  • A New Mechanism for Intraventricular Conduction Disturbance A Preliminary Note
    Yasuo NAGAMOTO, Makoto ARITA, Tetsunori SAIKAWA
    1976 年 17 巻 6 号 p. 760-767
    発行日: 1976年
    公開日: 2008/12/09
    ジャーナル フリー
    Chlorpromazine (1, 5, and 20mg/Kg) was injected intravenously to anesthetized and open-chest dogs under artificial respiration. Using right atrial pacing, the heart rate was increased stepwise from intrinsic sinus rate to higher rate where the A-V block first developed. ECG (II) was recorded simultaneously with arterial blood pressure, ventricular monophasic action potentials and left atrial electrogram. In the control, QRS-duration was constant (46.9±0.8 msec) irrespective of heart rate. After the drug injection, however, the duration increased significantly with increasing heart rate, the effect depending on the injected dosage (r=0.283, P<0.1 in 1mg/Kg ; r=0.406, P<0.01 in 5mg/Kg ; r=0.631, P<0.001 in 20mg/Kg). During the drug action, QRS-duration of atrial premature beats was also longer than that of sinus beats, and the lengthening increased with shortening of preceding cycle length. The observed QRS-prolongations were due to neither incomplete ventricular repolarization nor bundle branch block. The mechanism of prolongation was attributed to delayed or time-dependent recovery of ventricular excitability, i.e., slowed removal of inactivation in rapid sodium system in the ventricular muscle fibers.
  • Kazuki KAWABE, Kumiko SHIONO, Susumu MIZOGAMI, Hirofumi SOKABE
    1976 年 17 巻 6 号 p. 768-773
    発行日: 1976年
    公開日: 2008/12/09
    ジャーナル フリー
    Utilizing the microsurgical method of transplantation in the rat, the role of the kidney in an experimental renal hypertension due to segmental renal infarction was studied. When the infarcted kidney was transplanted into the bilaterally nephrectomized recipient, hypertension developed so long as the donor kidney was transplanted within 2 weeks after infarction. With transplantation of the normal kidney into the hypertensive rat 8 weeks after infarction, BP remained high unless the infarcted kidney was removed. PRA after transplantation, or KRA of the transplanted kidneys were not correlated to the blood pressure levels. It was suggested that the infarcted kidney has the pressor mechanism, lasting for 2 weeks or more after infarction. The infarcted kidney also has the maintenance mechanism, establishing 8 weeks after infarction.
  • Sukenobu ITO, Morio ITO, Takehiko FUJINO, Teruo FUKUMOTO, Syozo KANAYA ...
    1976 年 17 巻 6 号 p. 774-783
    発行日: 1976年
    公開日: 2008/12/09
    ジャーナル フリー
    A case of 42-year-old female with persistent pericardial effusion and recurrent congestive heart failure was presented.
    The clinical course, laboratory and cardiac evaluations confirmed the existence of tricuspid incompetence and restrictive condition of the right ventricle.
    At autopsy, the right atrium and ventricle showed moderate hypertrophy, the left ventricle being almost completely spared macroscopically. Diffuse fibrous thickening of the right atrial and ventricular endomyocardium with mural thrombi, and mild lymphocytic infiltration were noted microscopically.
    These findings are compatible with endomyocardial fibrosis described by Davies.
    The etiology and pathogenesis of the disease were discussed.
  • A Case Report with Description of New Auscultatory and Radiographic Signs
    Takeshi MOTOMIYA, Joseph LINDSAY, Robert H. PATTERSON, George A. KELSE ...
    1976 年 17 巻 6 号 p. 784-790
    発行日: 1976年
    公開日: 2008/12/09
    ジャーナル フリー
    A case of organizing hemopericardium and cardiac tamponade in a patient with a permanent endocardial pacemaker who was maintained on anticoagulation is presented. The hemopericardium is concluded as solely due to the anticoagulation. A new auscultatory finding attributable to an endocardial pacemaker and a helpful radiographic sign of pericardial effusion in patients with these pacemaker is described.
  • Itsuo KATO, Nobuyuki KAIHOTSU, Tomonori SUGIMOTO, Yuzo KOIDE, Yoshikaz ...
    1976 年 17 巻 6 号 p. 791-797
    発行日: 1976年
    公開日: 2008/12/09
    ジャーナル フリー
    A case is presented in which 7 months after the first mitral valve replacement (MVR) the malfunction of a Björk-Shiley valve prosthesis was supposed and the thrombosed valve prosthesis was 2 months later successfully replaced. For the detection of the malfunction of the valve prosthesis echocardiography was especially useful.
  • Yoshihiko ATSUCHI, Yasuo NAGAI, Kenji NAKAMURA, Yukio KOMATSU, Yoshiak ...
    1976 年 17 巻 6 号 p. 798-803
    発行日: 1976年
    公開日: 2008/12/09
    ジャーナル フリー
    A case of right atrial myxoma with mimicking symptoms and signs of constrictive pericarditis is reported. The presence of a prolapsing right atrial tumor was easily recognized in the right ventricle during diastole by a routine echocardiography and it was confirmed by cineangiography and operation.
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