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  • 1
    In: International Journal of Stroke, SAGE Publications, Vol. 14, No. 9 ( 2019-12), p. 871-877
    Abstract: Recent prospective registration studies of transient ischemic attack in Western countries demonstrated that large artery atherosclerosis is the highest risk etiology for early stroke recurrence under urgent evaluation and treatment. On the other hand, some limited transient ischemic attack studies from East Asian countries showed transient ischemic attack patients due to small vessel occlusion were at a higher early stroke risk. Aims We aimed to assess the risk for early stroke in small vessel occlusion-transient ischemic attack patients in a Japanese large transient ischemic attack registry. Methods We analyzed the data of a prospective Japanese transient ischemic attack registry including 1320 transient ischemic attack patients within seven days after onset. Small vessel occlusion-transient ischemic attack was defined as the presence of lacunar transient ischemic attack syndrome, without other etiologies. The outcome measure was recurrent stroke within 30 days after transient ischemic attack. The predictors of 30-day recurrent stroke were estimated using the Cox proportional hazards model. Results The study population had a mean age of 69 ± 12 years and 470 were women. Recurrent stroke was observed in 61 patients (4.6%), and the highest rate was observed with small vessel occlusion-transient ischemic attack (7.8%), followed by large artery atherosclerosis (5.4%). In multivariate analysis, recurrent stroke was independently associated with small vessel occlusion-transient ischemic attack (hazard ratio (HR): 2.01, 95% confidence interval (CI): 1.19–3.35), higher systolic blood pressure (HR: 1.18, 95% CI: 1.08–1.28), and presentation within 3 h after onset (HR: 2.21, 95% CI: 1.27–4.04). Furthermore, small vessel occlusion-transient ischemic attack with acute small deep infarct on diffusion-weighted imaging was a stronger predictor of recurrent stroke (HR: 4.87, 95% CI: 2.09–10.0). Conclusion Small vessel occlusion-transient ischemic attack, especially with acute small deep infarct, had a higher early stroke risk compared with other etiologies in Japanese transient ischemic attack patients who received early management.
    Type of Medium: Online Resource
    ISSN: 1747-4930 , 1747-4949
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2019
    detail.hit.zdb_id: 2211666-7
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  • 2
    In: International Journal of Stroke, SAGE Publications, Vol. 17, No. 5 ( 2022-06), p. 494-505
    Abstract: Nicardipine has strong, rapidly acting antihypertensive activity. The effects of acute systolic blood pressure levels achieved with intravenous nicardipine after onset of intracerebral hemorrhage on clinical outcomes were determined. Methods A systematic review and individual participant data analysis of articles before 1 October 2020 identified on PubMed were performed (PROSPERO: CRD42020213857). Prospective studies involving hyperacute intracerebral hemorrhage adults treated with intravenous nicardipine whose outcome was assessed using the modified Rankin Scale were eligible. Outcomes included death or disability at 90 days, defined as the modified Rankin Scale score of 4–6, and hematoma expansion, defined as an increase ≥6 mL from baseline to 24-h computed tomography. Summary of review Three studies met the eligibility criteria. For 1265 patients enrolled (age 62.6 ± 13.0 years, 484 women), death or disability occurred in 38.2% and hematoma expansion occurred in 17.4%. Mean hourly systolic blood pressure during the initial 24 h was positively associated with death or disability (adjusted odds ratio (aOR) 1.12, 95% confidence interval (CI) 1.00–1.26 per 10 mmHg) and hematoma expansion (1.16, 1.02–1.32). Mean hourly systolic blood pressure from 1 h to any timepoint during the initial 24 h was positively associated with death or disability. Later achievement of systolic blood pressure to ≤140 mmHg increased the risk of death or disability (aOR 1.02, 95% CI 1.00–1.05 per hour). Conclusions Rapid lowering of systolic blood pressure by continuous administration of intravenous nicardipine during the initial 24 h in hyperacute intracerebral hemorrhage was associated with lower risks of hematoma expansion and 90-day death or disability without increasing serious adverse events.
    Type of Medium: Online Resource
    ISSN: 1747-4930 , 1747-4949
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2022
    detail.hit.zdb_id: 2211666-7
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  • 3
    In: Journal of International Medical Research, SAGE Publications, Vol. 8, No. 2 ( 1980-03), p. 118-126
    Abstract: The results of a series of multicentre, controlled, double-blind trials of the clinical efficacy of Encephabol compared with placebo in patients with a variety of cerebrovascular disorders are reported.
    Type of Medium: Online Resource
    ISSN: 0300-0605 , 1473-2300
    Language: English
    Publisher: SAGE Publications
    Publication Date: 1980
    detail.hit.zdb_id: 2082422-1
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  • 4
    Online Resource
    Online Resource
    SAGE Publications ; 1987
    In:  Annals of Otology, Rhinology & Laryngology Vol. 96, No. 4 ( 1987-07), p. 411-414
    In: Annals of Otology, Rhinology & Laryngology, SAGE Publications, Vol. 96, No. 4 ( 1987-07), p. 411-414
    Abstract: Intravenously injected kanamycin sulfate (KM) was located in the endolymphatic sac (ES) of guinea pigs by an immunohistologic method. Kanamycin sulfate had passed through the capillaries in the subepithelial layer and reached the epithelial layer as early as 1 minute after injection. The amount of KM in the epithelial layer gradually increased with time (until 30 minutes after injection). The KM also accumulated in floating cells in the ES. These results tend to indicate that the ES is rather easily permeable to systemically administered drugs, which readily get into the regional endolymph. In conclusion, much more attention should be paid to the ES and drug ototoxicity associated with drug therapy in the management of patients with inner ear disturbances.
    Type of Medium: Online Resource
    ISSN: 0003-4894 , 1943-572X
    Language: English
    Publisher: SAGE Publications
    Publication Date: 1987
    detail.hit.zdb_id: 2033055-8
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  • 5
    In: Global Spine Journal, SAGE Publications, Vol. 14, No. 5 ( 2024-06), p. 1583-1594
    Abstract: Retrospective multicenter study Objectives To investigate changes over a 10-years period in the profile of cervical spine and spinal cord injuries among the elderly in Japan. Methods The current multicenter study was a retrospective analysis of inpatients aged ≥65 years, suffering cervical fracture (CF) and/or cervical spinal cord injury (CSCI). We analyzed 1413 patients’ epidemiology (from 2010 to 2019). Moreover, 727 patients who underwent surgical treatment were analyzed in 2 groups: the early (2010-2014) and late period (2015-2019). Results Both the number of patients and number of surgical patients showed a significant increasing trend ( P 〈 .001), while the mean age, the distribution of injury levels and paralysis severity, and the proportion of surgical indications remained the same. The number of surgical patients doubled from 228 to 499 from the early to late periods. Posterior surgery was the most common approach (90.4%), instrumentation surgery with screws increased significantly, and the range of fusion was significantly longer in the late period (2.1 vs 2.7 levels, P = .001). Significantly worsening neurological symptoms were recorded in the late period (1.3% vs 5.8%, P = .006), with C5 palsy being the major one. Otherwise, perioperative, major, and other complications, including mortality, did not differ significantly in incidence. Conclusions Both the number of elderly CF and/or CSCI patients and number of patients undergoing surgery increased dramatically over the decade without any change in profile. Instrumentation surgeries with screws increased, without an increase in systemic complications.
    Type of Medium: Online Resource
    ISSN: 2192-5682 , 2192-5690
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2024
    detail.hit.zdb_id: 2648287-3
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  • 6
    Online Resource
    Online Resource
    SAGE Publications ; 2009
    In:  Applied Psychological Measurement Vol. 33, No. 7 ( 2009-10), p. 570-571
    In: Applied Psychological Measurement, SAGE Publications, Vol. 33, No. 7 ( 2009-10), p. 570-571
    Type of Medium: Online Resource
    ISSN: 0146-6216 , 1552-3497
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2009
    detail.hit.zdb_id: 224215-1
    detail.hit.zdb_id: 2002941-X
    SSG: 5,2
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  • 7
    In: Global Spine Journal, SAGE Publications
    Abstract: Retrospective multicenter study. Objective The purpose of this study was to compare the prognosis of elderly patients with injuries related to cervical diffuse idiopathic skeletal hyperostosis (cDISH) to matched control for each group, with and without fractures. Methods The current multicenter study was a retrospective analysis of 140 patients aged 65 years or older with cDISH-related cervical spine injuries; 106 fractures and 34 spinal cord injuries without fracture were identified. Propensity score–matched cohorts from 1363 patients without cDISH were generated and compared. Logistic regression analysis was performed to determine the risk of early mortality for patients with cDISH-related injury. Results Patients with cDISH-related injuries with fracture did not differ significantly in the incidence of each complication and ambulation or severity of paralysis compared to matched controls. In patients with cDISH-related injury without fracture, those who were nonambulatory at discharge comprised 55% vs 34% of controls, indicating significantly poorer ambulation in those with cDISH-related injuries ( P = .023). There was no significant difference in the incidence of complications and ambulation or paralysis severity at 6 months as compared with controls. Fourteen patients died within 3 months. Logistic regression analysis identified complete paralysis (odds ratio [OR] 36.99) and age (OR 1.24) as significant risk factors for mortality. Conclusions The current study showed no significant differences in the incidence of complications, ambulation outcomes between patients with cDISH-related injury with fracture and matched controls, and that the ambulation at discharge for patients with cDISH-related injury without fractures were significantly inferior to those of matched controls.
    Type of Medium: Online Resource
    ISSN: 2192-5682 , 2192-5690
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2023
    detail.hit.zdb_id: 2648287-3
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  • 8
    In: International Journal of Stroke, SAGE Publications, Vol. 12, No. 1 ( 2017-01), p. 84-89
    Abstract: Incidence and predictors of ischemic stroke in patients with transient ischemic attack (TIA) have not been fully clarified outside Europe and North America. Aims We undertook the present prospective, multicenter study to clarify the incidence, predictors, and etiology of ischemic stroke within one year of TIA onset in Japan. Methods The study subjects were patients within seven days of TIA onset who were enrolled in a prospective register from 57 hospitals between June 2011 and December 2013. The primary endpoint was occurrence of ischemic stroke. Results Of 1365 consecutive patients, 1245 were followed for one year after TIA onset; 101 (8.1%) experienced ischemic stroke during follow-up. The leading subtype of ischemic stroke was small-vessel occlusion (SVO) followed by large-artery atherosclerosis (LAA) attributable to intracranial artery diseases. When dividing ischemic stroke events between those occurring within the first 90 days after TIA onset and those occurring after the first 90 days, the leading subtype of ischemic stroke within the first 90 days after TIA onset was SVO, followed by LAA attributable to intracranial artery diseases. In comparison, the subtypes most commonly seen beyond the first 90 days after TIA onset were cardioembolic and LAA attributable to intracranial artery disease. The one-year risk of ischemic stroke increased significantly as ABCD 2 score increased, at 6.2% for 0–3 points, 7.2% for 4–5 points, and 11.6% for 6–7 points. Conclusions The one-year ischemic stroke risk after TIA was about 8% and was associated with the ABCD 2 score. The most common subtype of subsequent ischemic stroke was SVO.
    Type of Medium: Online Resource
    ISSN: 1747-4930 , 1747-4949
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2017
    detail.hit.zdb_id: 2211666-7
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  • 9
    In: International Journal of Stroke, SAGE Publications, Vol. 14, No. 9 ( 2019-12), p. 915-922
    Abstract: Branch atheromatous disease (BAD) is distinctive from large and small arterial diseases, which is single subcortical infarction larger than lacunar stroke in the territories of deep perforators without relevant arterial stenosis. BAD meets the current criteria of embolic stroke of undetermined source. We performed an exploratory analysis of BAD in patients recruited to NAVIGATE embolic stroke of undetermined source, a randomized controlled trial to compare rivaroxaban and aspirin in embolic stroke of undetermined source patients. Methods and results Among 3972 stroke patients in cerebral hemispheres with intracranial arterial imaging, 502 (12.6%) patients met the criteria for BAD. BAD was associated with younger age (years; OR: 0.97, 95% CI: 0.96–0.98), race (Asian; OR: 1.78, 95% CI: 1.44–2.21), region (Eastern Europe; OR: 2.49, 95% CI: 1.87–3.32), and higher National Institute of Health Stroke Scale (OR: 1.17, 95% CI: 1.12–1.22) at randomization. During follow-up, stroke or systemic embolism (2.5%/year vs. 6.2%/year, p = 0.0022), stroke (2.1%/year vs. 6.2%/year, p = 0.0008), and ischemic stroke (2.1%/year vs. 5.9%/year, p = 0.0013) occurred less frequently in BAD than non-BAD patients. There were no differences in annual rates of stroke or systemic embolism (2.5%/year vs. 2.5%/year, HR: 1.01, 95% CI: 0.33–3.14) or major bleeding (1.3%/year vs. 0.8%/year, HR: 1.51, 95% CI: 0.25–9.05) between rivaroxaban and aspirin groups among BAD patients. Conclusions BAD was relatively common, especially in Asian and from Eastern Europe among embolic stroke of undetermined source patients. Stroke severity was higher at randomization but recurrence of stroke was fewer in BAD than non-BAD patients. The efficacy and safety of rivaroxaban and aspirin did not differ among BAD patients.
    Type of Medium: Online Resource
    ISSN: 1747-4930 , 1747-4949
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2019
    detail.hit.zdb_id: 2211666-7
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  • 10
    Online Resource
    Online Resource
    SAGE Publications ; 1992
    In:  Vascular Surgery Vol. 26, No. 7 ( 1992-09), p. 529-537
    In: Vascular Surgery, SAGE Publications, Vol. 26, No. 7 ( 1992-09), p. 529-537
    Abstract: A new method of phlebography, which the authors have named "direct phlebography," was developed as a means of obtaining accurate information on the deep vein system, as well as on the communicating veins in the lower extremities. This method consists of two techniques: one is a retrograde insertion of a catheter into the deep veins and the other is a direct injection of the contrast medium into the deep veins. For these techniques, use of a thin, soft guidewire and catheter; injection of a low-osmolar contrast medium; and systemic administration of heparin are important. In cases of varix cruris, the deep veins and the insufficient communicating veins were clearly visualized by this method. In cases of deep vein thrombosis, a "narrowed" but patent common or superficial femoral vein was detected, which had often been diagnosed as "occluded" by conventional ascending phlebography. The deep femoral vein was usually patent. The authors have used this method in 54 limbs, but no serious complications such as venous valve injury, severe extravasation, or thrombus formation have been encountered so far, except for a small extravasation in 1 patient with superficial femoral vein thrombosis. This new method, used to visualize the deep vein system directly, is thought to provide correct and useful information about the lesions in the deep vein system of the lower extremities.
    Type of Medium: Online Resource
    ISSN: 0042-2835
    Language: English
    Publisher: SAGE Publications
    Publication Date: 1992
    detail.hit.zdb_id: 2095223-5
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