Kokyu to junkan. Respiration & circulation

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Website Respiration and Circulation / Kokyu to Junkan website
Other titles Kokyū to junkan, Respiration and circulation
ISSN 0452-3458
OCLC 10102231
Material type Periodical
Document type Journal / Magazine / Newspaper

Publications in this journal

  • Kokyu to junkan. Respiration & circulation 10/2013; 61(10):970-974.
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    ABSTRACT: We investigated the sensitivity and specificity of an automated portable device for diagnosing sleep apnea syndrome (Morphase®). In 20 patients who underwent a polysomnograph (PSG), Morphase® was concurrently applied. In another 46 patients who received screening test with Morphase®, apnea-hypopnea indexes (AHIs) determined by the automated system and those with manual analyses were compared. There was a good correlation between AHI and respiratory distress indexes (RDIs) determined by PSG. The regression line was Y=0.608 X-0.377 suggesting that Morphase® under-estimates AHI by 40%. When RDI was corrected by actual sleep time, the regression line became Y=0.716 X+0.216 suggesting that the contribution of sleep time to Morphase-determined AHI was approximately 10%. The regression line representing the relationship between automated AHI and manually determined AHI was Y=0.765 X-1.593. This result suggested that the automated system underestimated AHI by 23%. When AHI was determined only from nasal pressure, AHIs were overestimated from 10 to 30/hr. In conclusion, Morphase® has a good specificity and sensitivity for determination of which patients require PSG study.
    Kokyu to junkan. Respiration & circulation 04/2004; 52(4):427-431.
  • Kokyu to junkan. Respiration & circulation 09/2002; 50(9):927-934.
  • Kokyu to junkan. Respiration & circulation 04/2002; 50(4):363-369.
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    ABSTRACT: Marked changes in electrocardiogram (ECG) data are sometimes seen in cases of chronic renal failure with or without hemodialysis. Several of such cases may contain primary cardiomyopathy (PMD). We observed a case of hypertrophic obstructive cardiomyopathy (HOCM) during the hemodialysis conduction period. The patient was a 71-year-old male, who had marked ST-T change in ECG, and diffuse myocardial hypertrophy and systolic anterior movement of the mitral valve in the echocardiogram. This case was diagnosed as HOCM with left ventricular outflow (LVO) tract pressure gradient (PG). The patient in this case died 2 months after hemodialysis conduction, with a gradual fall in casual blood pressure (BP) and BP undergoing hemodialysis. An inappropriate ultrafiltration seemed to increase LVO stenosis and decrease cardiac output. PMD is not a common disease, but the hemodynamics of renal failure patients with marked ECG change should be taken into consideration.
    Kokyu to junkan. Respiration & circulation 09/1996; 44(9):983-984.
  • Kokyu to junkan. Respiration & circulation 06/1996; 44(6):575-579.
  • Kokyu to junkan. Respiration & circulation 01/1994; 41(12):1155-8.
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    ABSTRACT: We report a rare case of tricuspid regurgitation due to nonpenetrating chest trauma 33 years previously. A 79-year-old man suffered a blunt trauma due to a piece of wood at work in 1958. He suffered multiple rib fractures on the right side and was admitted. Since then, he began having shortness of breath on exertion and was treated with medication. The patient was transferred to the Division of Cardiology, Hakodate National Hospital in 1984. A chest x-ray film revealed a marked cardiomegaly. Cardiac catheterization showed severe tricuspid regurgitation. Hepatomegaly and pancytopenia was observed. He was readmitted because of general fatigue in July 1991. Two-dimensional echocardiography demonstrated systolic excursion of septal and posterior tricuspid leaflets with ruptured chordae tendineae into the right atrium, and a remarkably enlarged right ventricule, right atrium and vena cava interior. Cardiac catheterization was performed. The right atrial pressure-wave form resembled the right ventricular pressure recording (ventricularization of the atrial pressure). Right ventricular cineangiography revealed severe tricuspid regurgitation, grade 4. Laboratory data showed pancytopenia. Thrombocytopenia progressed (3 x 10(4)/mm3), and a hemorrhagic tendency developed. The liver edge was palpable 4 finger breadths below the right costal margin. Pancytopenia due to congestive hepatomegaly and hypersplenism would have complicated this case.
    Kokyu to junkan. Respiration & circulation 01/1994; 41(12):1213-7.
  • Kokyu to junkan. Respiration & circulation 01/1994; 41(12):1128-38.
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    ABSTRACT: A case of sick sinus syndrome with mirror-image dextrocardia which was associated with bilateral superior vena cava and an absent inferior vena cava with azygos continuation is reported. A 45-year-old woman was referred to our hospital with the chief complaints of dizziness and palpitation. The electrocardiogram showed a atrial fibrillation with a 4-second period of asystole. A permanent endocardial bipolar demand pacemaker was inserted through the left superior vena cava. Since anomaly of venous system is commonly associated with mirror-image dextrocardia, the angiogram is necessary prior to permanent pacemaker implantation.
    Kokyu to junkan. Respiration & circulation 01/1994; 41(12):1201-4.
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    ABSTRACT: We have put forward a hypothesis that the pleural fluid is filtered at the arterial ends of the pleural blood capillaries and is absorbed mainly at the venous ends, partly at the lymphatic channels, as it is in the other tissues. Then we have calculated the pleural liquid pressure following the Starling equation applying the ordinary value of factors. The result is that the calculated pleural liquid pressure is low enough to expand the lung.
    Kokyu to junkan. Respiration & circulation 01/1994; 41(12):1177-80.
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    ABSTRACT: The purpose of the study was to investigate the effect of continuous IV administration of midazolam and ketamine on respiratory pattern in six adult volunteers. Midazolam 0.05 mg/kg and ketamine 0.5 mg/kg were given, and then 0.1 mg/kg/hr for midazolam and 1 mg/kg/hr for ketamine were administered continuously. We measured MV, RR and TV (OMR86036), and calculated duty ratio and mean inspiratory flow at the level of 0 and 5 cmH2O CPAP during spontaneous respiration of air with and without 5% CO2. Each parameter was obtained before and 1 hr after the start of IV administration of the drugs. With 5% CO2, MV decreased significantly from 15.5 +/- 1.5 l/min to 11.7 +/- 0.8 l/min at 0 cmH2O CPAP level and from 15.8 +/- 1.8 l/min to 12.6 +/- 1.5 l/min at 5 cmH2O CPAP level, and also mean inspiratory flow decreased significantly from 590 +/- 2 ml/sec to 421 +/- 30 ml/sec at 0 cmH2O CPAP level and from 606 +/- 53 ml/sec to 477 +/- 48 ml/sec at 5 cmH2O CPAP level. TV decreased significantly during sedation at both CPAP levels with or without 5% CO2, while RR and duty ratio tended to increase. It was thought that, when the respiration was stimulated with 5% CO2, the decrease in mean inspiratory flow greatly contributed to the fall in MV during administration of midazolam and ketamine.
    Kokyu to junkan. Respiration & circulation 01/1994; 41(12):1181-4.
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    ABSTRACT: A 22-year-old man was admitted to the department of plastic surgery in our university with diagnosis of ankylosis and microgeniea. His complaints were snoring and somnolence in the daytime, so we performed a Respigraph (Chest) that showed obstructive apnea during sleep. We diagnosed obstructive sleep apnea syndrome. So we observed pulmonary circulation and measured lung water using the double indicator dilution method (Nihon Koden, MTV-1100) during sleep. During the period of apnea, arterial oxygen pressure and mixed venous saturation decreased, reversely, mean pulmonary arterial pressure rose, lung water (ETV) and central blood volume increased. We considered that the increase of lung water during sleep apnea is caused by hemodynamic change due to hypoxia and increase of venous return. After operation, the value of blood gas assay and apnea index were improved.
    Kokyu to junkan. Respiration & circulation 01/1994; 41(12):1197-200.
  • Kokyu to junkan. Respiration & circulation 01/1994; 41(12):1139-45.
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    ABSTRACT: The aim of this report is to investigate the factors which influence mean left atrial pressure (LAP) after percutaneous transvenous mitral commissurotomy (PTMC) and the characteristics of patients in whom PTMC is most effective. Fifty one patients with symptomatic mitral stenosis underwent PTMC. The patients included 8 males and 43 females, aged 26-66 years (mean age of 46). These patients were classified into two groups according to LAP after PTMC: 31 cases with LAP after PTMC of 12 mmHg or less (group A) and 20 cases with LAP after PTMC greater than 12 mmHg (group B). The patients of group A were younger (44 +/- 6 vs 48 +/- 6 years, p < 0.05), and had atrial fibrillation (af) less frequently (35 vs 65%, p < 0.05), and had mitral valve calcification less frequently (29 vs 65%, p < 0.01). Before PTMC, LAP (19 +/- 6 vs 23 +/- 5 mmHg, p < 0.01) was lower and mitral valve area (MVA) (0.95 +/- 0.24 vs 0.81 +/- 0.15 cm2, p < 0.05) larger in group A. Symptoms graded according to the New York Heart Association functional classification system were similar in both groups before PTMC. After the procedure, final MVA (1.79 +/- 0.69 vs 1.40 +/- 0.50 cm2, p < 0.05) was larger and systolic pulmonary artery pressure (32 +/- 9 vs 39 +/- 7 mmHg, p < 0.01) lower in group A. Mitral regurgitation > or = 3-grade tended to complicate more frequently (3 vs 20%, NS) in group B.(ABSTRACT TRUNCATED AT 250 WORDS)
    Kokyu to junkan. Respiration & circulation 01/1994; 41(12):1165-71.
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    ABSTRACT: Effects on circulating blood volume (CBV) of the intravenous injection of a nonionic contrast medium, ioversol, with various doses were assessed in order to find a way of injection with less effects on systemic circulation. Ioversol was injected as a bolus to 20 mongrel dogs at doses of A: 3.75 ml/kg (n = 8) or B: 2 ml/kg (n = 6) of a solution containing 320 mg iodine per ml, or C: 2 ml/kg (n = 6) of a 240 mgI/ml solution. Colloid oncotic pressure (COP) of the bloods drawn before and 1, 2, 3, 5 min after the injection of ioversol was measured by a needle type osmometer, and changes in CBV were calculated using the COP values. Upon injection of ioversol CBV increased rapidly and then gradually returned to the preinjection levels. The change in CBV induced by ioversol was significantly less than those reportedly induced by an ionic contrant medium, iothalamate, and a nonionic medium, iopamidol, and comparable to that by another nonionic medium, iohexol. The degree of increase in CBV and the blood concentration of ioversol were related to the amount, but not the volume, of ioversol injected. Thus, ioversol proved to be one of the low osmotic nonionic contrast media with less effects on CBV. Furthermore, it is suggested that the amount, rather than volume, of contrast medium should be taken into consideration when the angiography of the patients with reduced cardiac function, children or aged patients is performed in whom the contrast medium-induced CBV expansion needs to be as less as possible.
    Kokyu to junkan. Respiration & circulation 01/1994; 41(12):1191-5.
  • Kokyu to junkan. Respiration & circulation 01/1994; 41(12):1159-62.
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    ABSTRACT: The aim of this study was to study the effect of enalapril (E) on left ventricular (LV) mass, LV function and blood renin-angiotensin (RA) in patients with hypertension. Sixteen hypertensives were included in this study (WHO I 8, WHO II 8, 49.5 +/- 10.5 yrs). They were examined for blood pressure and heart rate. Chest X-ray film, echocardiography (echo), X-ray computed tomography (CT) and RA before and after about 6 months of E administration were studied. The LV mass was calculated by CT. The LV function was measured by echo. RAS was unchanged during this study. LV mass was significantly reduced after E (121.4 +/- 25.6 vs 104.6 +/- 13.7 g/cm2). The LV systolic function was unchanged after E, but LV diastolic function improved. It was shown that the long-term administration of E improves LV hypertrophy and LV diastolic function without any change of RAS.
    Kokyu to junkan. Respiration & circulation 01/1994; 41(12):1185-9.
  • Kokyu to junkan. Respiration & circulation 01/1994; 41(12):1147-53.