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OTSUJI Y.; TODA H.; KISANUKI A.; KOYANO T.; KUROIWA R.; MURAYAMA T.; MATSUSHITA R.; NAKAO S.; TOMARI T.; TANAKA H. 《European heart journal》1994,15(4):462-467
We investigated whether the left ventricular filling profile,defined as the early to late diastolic left ventricular fillingvolume ratio, during the preceding control beats actually affectsthe pulse pressure during a ventricular premature contraction(PVC). Twenty patients underwent invasive electrophysiologicalstudy for sinus bradycardia. VPCs with various coupling intervalswere induced by right ventricular electrical stimulation, andthe mitral filling flow velocity pulsed Doppler echocardiography,the femoral arterial pressure curve and the electrocardiogramwere simultaneously recorded The early to late diastolic velocity-rimeintegral ratio (E1/A1 ratio) of the mitral filling flow velocityduring the control beats which preceded the VPC was measuredas an index characterizing left ventricular filling profile.The coupling interval of each VPC and the extrasystolic beatpulse pressure were measured The ratio of the extrasystolicbeat pulse pressure to the control beat pulse pressure was expressedin % (% extrasystolic beat pulse pressure). The correlationbetween the coupling interval and the % extrasystolic beat pulsepressure was investigated. Coupling intervals of 0·80,0·70, 0·60, 0·50, and 0·45 s wereused At a coupling interval of 0·80 or 0·45 s,the % extrasystolic beat pulse pressure showed no significantcorrelation with the E1/A1 ratio. In contrast, the % extrasystolicbeat pulse pressure with coupling intervals of 0·70,0·60, and 0·50 s showed a significant positivecorrelation with the E1/A1 ratio (r=0·67, 0·74,and 0·66 P<0·01, respectively). In additionto the prematurity and the site of origin of the VPCs, the leftventricular filling profile during the preceding control beatsmay significantly affect the height of the pulse pressure duringextrasystoles with medium length coupling intervals. 相似文献
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Kiyoshi TAMURA M.D. Yoshigoro KUROIWA M.D. 《Psychiatry and clinical neurosciences》1972,26(4):269-274
Somatosensory evoked responses were studied in sixteen patients with multiple sclerosis. Eight patients of these demonstrated abnormal form of SERs. The abnormal SERs were characterized by prominent alteration of peak N2. The improvement of the SERs as a patient passed through an attack of multiple sclerosis tended to lag behind the clinical improvement. 相似文献
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MASAAKI TAKEUCHI HARUHIKO ABE AKIO KUROIWA 《Pacing and clinical electrophysiology : PACE》1996,19(12):2153-2155
Effects of dual chamber A V sequential pacing on coronary flow velocity, especially systolic reversal flow, were tested in a patient with hypertrophic obstructive Cardiomyopathy. AV sequential pacing with shorter AV delays reduced the systolic reversal flow in the coronary artery, and improved the pressure gradient of the left ventricular outflow tract. 相似文献
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Possible Involvement of Cerebral Hypoperfusion as a Trigger of Neurally-Mediated Vasovagal Syncope 总被引:1,自引:0,他引:1
HARUHIKO ABE KIYOTAKA KOHSHI AKIO KUROIWA 《Pacing and clinical electrophysiology : PACE》1998,21(3):613-616
It is well known that some patients with neurally mediated syncope have a feeling of aura before the onset of syncope. A case is reported in which cerebral dysfunction recorded by EEG was present before the onset of a vasovagal reaction. The vasovagal reaction, bradycardia and/or asystole, was preceded by abnormal EEG findings when the patient complained of feeling a headache, photophobia, and nausea. These findings suggest that cerebral hypoperfusion, such as with cerebral vasospasms, before the onset of bradycardia might be involved in the mechanism of neurally mediated syncope in patients with an aura. 相似文献
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Kenji INA Kimitomo MORISE Kenshou CHIN Makoto HAYAKAWA Naoto MAMIYA Tetsu SAKAI Hirofumi NAGAI Takeo YAMAGUCHI Toshihiro MATSUURA Masataka SHINODA Atsuo KUROIWA Jun-ichi HARUTA Yoh HORIUCHI Atsushi FURUSAWA Kazuhiro KANYAMA Hiroaki IWASE Kazuo KUSUGAMI Hideyo TAKAHASHI 《Digestive endoscopy》1993,5(1):79-85
Abstract: Two patients with pneumatosis cystoides intestinalis (PCI) successfully treated with hyperbaric oxygen are described, The first patient was a 52-year-old male who presented with bloody stools and was diagnosed as having primary PCI. The second was a 61-year-old male whose occupation entailed prolonged exposure to trichloroethylene. Following hyperbaric oxygen therapy, the colonic gas cysts completely disappeared in both patients, and there has been no evidence of recurrence. The relevant literature from 1980 to 1992 is reviewed, and hyperbaric oxygen therapy for PCI is discussed in detail. The data accumulated thus far suggest that hyperbaric oxygen is superior to high-flow oxygen breathing in PCI therapy. 相似文献
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Kanji IZUMI M.D. Naohide INOUE M.D. Yoshigoro KUROIWA M.D. 《Psychiatry and clinical neurosciences》1971,25(1):37-40
(L-DOPA was supplied from Kyowa Hakko Co., Ltd. and from Dai-Ichi Pharmaceutical Co., Ltd.) An effectiveness of L-DOPA on 41 cases; 39 with idiopathic parkinsonism and 2 with olivopontocerebellar atrophy with parkinsonism, was observed. A comparison was made on several factors between 10 markedly and 9 non-effective cases. It was found that there is a relationship between the effectiveness of L-DOPA and an appearance of pyramidal signs which observed in all non-effective whereas only in two out of 10 markedly effective cases. Discussions were made on the idiopathic parkinsonisms which accompany pyramidal signs and are refractive to L-DOPA. 相似文献
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