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1.
Masaaki UNO Kenji YAGI Hiroyuki TAKAI Naoki OYAMA Yoshiki YAGITA Keita HAZAMA Hideki NAKATSUKA Shunji MATSUBARA 《Neurologia medico-chirurgica》2021,61(2):124
We compared the rate of selective shunt and pattern of monitoring change between single and dual monitoring in patients undergoing carotid endarterectomy (CEA). A total of 121 patients underwent 128 consecutive CEA procedures. Excluding five procedures using internal shunts in a premeditated manner, we classified patients according to the monitoring: Group A (n = 72), patients with single somatosensory evoked potential (SSEP) monitoring; and Group B (n = 51), patients with dual SSEP and motor evoked potential (MEP). Among the 123 CEAs, an internal shunt was inserted in 12 procedures (9.8%) due to significant changes in monitoring (Group A 5.6%, Group B 15.7%, p = 0.07). The rate of shunt use was significantly higher in patients with the absence of contralateral proximal anterior cerebral artery (A1) on magnetic resonance angiography (MRA) than in patients with other types of MRA (p <0.001). Significant monitor changes were seen in 16 (12.5%) in both groups. In four of nine patients in Group B, SSEP and MEP changes were synchronized, and in the remaining five patients, a time lag was evident between SSEP and MEP changes. In conclusion, the rate of internal shunt use tended to be more frequent in patients with dual monitoring than in patients with single SSEP monitoring, but the difference was not significant. Contralateral A1 absence may predict the need for a shunt and care should be taken to monitor changes throughout the entire CEA procedure. Use of dual monitoring can capture ischemic changes due to the complementary relationship, and may reduce the rate of false-negative monitor changes during CEA. 相似文献
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Summary. Feedback of oestrogen on gonadotrophin release was studied in five normally cycling normoprolactinaemic women who were rendered moderately hyperprolactinaemic by oral administration of sulpiride (150mg daily) for 11 consecutive days. Five patients with peptic ulcer, who had been given 150 mg of sulpiride for 3–18 months and had chronic marked hyperprolactinaemia were also studied. Ethinyl oestradiol (200μg) was administered by mouth daily for 4 consecutive days and serum concentration of prolactin, luteinizing hormone (LH), follicle- stimulating hormone (FSH) and oestradiol were measured by a doubleantibody radioimmunoassay for 11 days. Oral administration of ethinyl oestradiol caused an initial decrease followed by a rebound of LH with a peak in all the women tested. The serum FSH levels showed only the initial decrease, followed by a slight rebound. Serum oestradiol levels decreased during oral administration of ethinyl oestradiol in all the women. The results of the present investigation suggest that oestrogen feedback effect on LH release is maintained in sulpiride-induced hyperprolactinaemic women as well as in women with normal cycles. 相似文献
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TERUYO YAGI KAZUKO YAMAUCHI SHIGEAKI KUWANO 《The Journal of pharmacy and pharmacology》1997,49(1):22-25
This study aimed to explore the mechanism involved in the synergistic purgative action of aloe-emodin anthrone and rhein anthrone, the active metabolites of sennoside C. Aloe-emodin anthrone and rhein anthrone, and their equimolar mixture, induced excretion of an approximately equal number of faeces by intracaecal administration at a dose of 23.2 μmol kg?1 in mice (= 10 standard dose). The number of wet faeces induced by aloe-emodin anthrone was less than those of rhein anthrone and the mixture. At the same dose, rhein anthrone and the mixture significantly stimulated large intestinal propulsion, though aloe-emodin anthrone had little stimulatory effect. Aloe-emodin anthrone and rhein anthrone decreased net water absorption but could not reverse it to the net secretion at 1/2 dose. The mixture significantly decreased net water absorption and reversed it to the net secretion at this dose. These anthrones did not stimulate mucus secretion in the colon at 1/2 dose. We concluded that the synergistic purgative effect of aloe-emodin anthrone and rhein anthrone in mice results from synergistic stimulation of large intestinal transit and large intestinal water secretion. 相似文献
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YOSHIHIRO YAMASHINA M.D. TETSUO YAGI M.D. Ph.D. AKIO NAMEKAWA M.D. AKIHIKO ISHIDA M.D. HIROKAZU SATO M.D. TAKASHI NAKAGAWA M.D. MANJIROU SAKURAMOTO M.D. EIJI SATO M.D. TOMOYUKI YAMBE M.D. Ph.D. 《Journal of cardiovascular electrophysiology》2010,21(2):163-169
Characteristics of Pulmonary Artery Arrhythmias. Introduction: The precise incidence and characteristics of ventricular arrhythmias originating from the pulmonary artery have not been fully described. The purpose of this prospective study was to clarify these points. Methods: Thirty‐three consecutive patients with an idiopathic left bundle branch block and inferior‐axis deviation type ventricular arrhythmia were included. All patients underwent detailed electroanatomical mapping (CARTO, Biosense‐Webster, Diamond Bar, CA, USA) during sinus rhythm prior to the catheter ablation. The precise location of the catheter tip at the successful ablation site was confirmed by both electroanatomical mapping and contrast radiography. The clinical and electrophysiological data were compared between the right ventricular outflow tract (RVOT) arrhythmia patients (RVOT group) and PA arrhythmia patients (PA group). Results: Eight patients (8/33 patients: 24.2%) had their ventricular arrhythmias successfully ablated within the PA. The local bipolar electrogram at the successful ablation sites in the PA group exhibited a significantly greater duration (P < 0.05) and lower amplitude (P < 0.05) than did those in the RVOT group (n = 19). In the PA group, all patients exhibited a multicomponent electrograms composed of a spiky potential and a dull potential, which might have consisted of near‐field PA activation and a far‐field ventricular activation, respectively, at the successful ablation site. Direct ablation to the spiky electrogram was able to eliminate the arrhythmias in all the PA group patients. Conclusions: PA arrhythmias may be more common than previously recognized. Careful mapping and interpretation of low amplitude and multicomponent electrograms are important for recognizing ventricular arrhythmias originating from the PA. (J Cardiovasc Electrophysiol, Vol. 21, pp. 163‐169, February 2010) 相似文献
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Daytime sleepiness and automobile accidents in patients with obstructive sleep apnea syndrome 总被引:3,自引:1,他引:3
AKIKO NODA PhD TOMOKO YAGI MITSUHIRO YOKOTA MD PhD FACC YUHEI KAYUKAWA MD PhD TATSURO OHTA MD PhD TAMOTSU OKADA MD PhD 《Psychiatry and clinical neurosciences》1998,52(2):221-222
Abstract We evaluated the rate of automobile accidents and daytime sleepiness using the Epworth sleepiness scale (ESS) in 44 patients with obstructive sleep apnea syndrome (OSAS). We defined the automobile accident score as a sum of two points for every one automobile accident and one point for every near-miss accident. Automobile accidents and near-misses were found in 54.5% and 50.0% in patients with OSAS. Automobile accident score was significantly correlated with the ESS score ( r = 0.56, P < 0.01). Our findings suggest that ESS score may be useful in detecting patients with the potential risk of automobile accidents associated with daytime sleepiness. 相似文献
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HIRONORI ODAKURA MEIICHI ITO AKIO NAMEKAWA TETSUO YAGI KAZUNORI OGATA JUN OTOMO AKIHIKO ISHIDA 《Pacing and clinical electrophysiology : PACE》1996,19(7):1070-1074
We studied the effect of intratrial reentry (IAE) on initiation of orthodromic reentrant tachycardia (ORT) in 150 patients with Wolff-Parkinson-White syndrome using His-bundle recording and the atrial extrastimulus technique. IAR was initiated by premature atrial stimulation in 44 patients (29%), and it was followed by ORT in 16 patients (11%). In 8 patients (5%), IAR promoted the initiation of ORT, whereas in 5 patients (3%), IAR inhibited the initiation of ORT. These findings suggest that ORT is frequently induced following IAR. IAR, which was frequently observed during electrophysiological studies, seems to play an important role in the initiation of ORT. 相似文献
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