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  • S. Karger AG  (5)
  • Kim, Bum Joon  (5)
  • 1
    In: Cerebrovascular Diseases, S. Karger AG
    Abstract: Introduction: Suboptimal sleep duration and poor sleep quality have been proposed to increase stroke risk. However, their significance in young ischemic stroke is unclear. We aimed to investigate the importance of sleep duration and quality on young ischemic stroke patients. Methods: A multicenter matched case-control study was performed to evaluate under-recognized risk factors in young ( 〈 45 years) ischemic stroke patients in 8 tertiary hospitals in Korea. A total of 225 patients and 225 age- and sex-matched controls were enrolled in the same period. Detailed information about patients’ demographics, socioeconomic state, traditional and nontraditional risk factors including sleep-related factors were obtained using structured questionnaires. Risk of ischemic stroke were estimated using conditional logistic regression analysis. Results: Although average sleep duration was similar in patients and controls, patients were more likely to have long (≥ 9 hours) or extremely short ( 〈 5 hours) sleep durations. In addition, the proportion of subjects with dissatisfaction with sleep quality was higher in patients than controls (66.2% versus 49.3%, p 〈 0.001). In multivariable conditional logistic regression analysis, long sleep duration (OR: 11.076, 95% CI: 1.819-67.446, p = 0.009) and dissatisfaction with sleep quality (OR: 2.116, 95% CI: 1.168-3.833, p = 0.013) were independently associated with risk of ischemic stroke. Discussion/Conclusions: Long sleep duration and dissatisfaction with sleep quality may be associated with increased risk of ischemic stroke in young adults. Improving sleep habit or quality could be important for reducing the risk of ischemic stroke.
    Type of Medium: Online Resource
    ISSN: 1015-9770 , 1421-9786
    Language: English
    Publisher: S. Karger AG
    Publication Date: 2023
    detail.hit.zdb_id: 1482069-9
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  • 2
    In: Cerebrovascular Diseases, S. Karger AG, Vol. 50, No. 3 ( 2021), p. 288-295
    Abstract: 〈 b 〉 〈 i 〉 Background: 〈 /i 〉 〈 /b 〉 Stroke risk scores (CHADS 〈 sub 〉 2 〈 /sub 〉 and CHA 〈 sub 〉 2 〈 /sub 〉 DS 〈 sub 〉 2 〈 /sub 〉 -VASc) not only predict the risk of stroke in atrial fibrillation (AF) patients, but have also been associated with prognosis after stroke. 〈 b 〉 〈 i 〉 Objective: 〈 /i 〉 〈 /b 〉 The aim of this study was to evaluate the relationship between stroke risk scores and early neurological deterioration (END) in ischemic stroke patients with AF. 〈 b 〉 〈 i 〉 Methods: 〈 /i 〉 〈 /b 〉 We included consecutive ischemic stroke patients with AF admitted between January 2013 and December 2015. CHADS 〈 sub 〉 2 〈 /sub 〉 and CHA 〈 sub 〉 2 〈 /sub 〉 DS 〈 sub 〉 2 〈 /sub 〉 -VASc scores were calculated using the established scoring system. END was defined as an increase ≥2 on the total National Institutes of Health Stroke Scale (NIHSS) score or ≥1 on the motor NIHSS score within the first 72 h of admission. 〈 b 〉 〈 i 〉 Results: 〈 /i 〉 〈 /b 〉 A total of 2,099 ischemic stroke patients with AF were included. In multivariable analysis, CHA 〈 sub 〉 2 〈 /sub 〉 DS 〈 sub 〉 2 〈 /sub 〉 -VASc score (adjusted odds ratio [aOR] = 1.17, 95% confidence interval [CI] = 1.04–1.31) was significantly associated with END after adjusting for confounders. Initial NIHSS score, use of anticoagulants, and intracranial atherosclerosis (ICAS) were also found to be closely associated with END, independent of the CHA 〈 sub 〉 2 〈 /sub 〉 DS 〈 sub 〉 2 〈 /sub 〉 -VASc score. Multivariable analysis stratified by the presence of ICAS demonstrated that both CHA 〈 sub 〉 2 〈 /sub 〉 DS 〈 sub 〉 2 〈 /sub 〉 -VASc (aOR = 1.20, 95% CI = 1.04–1.38) and CHADS 〈 sub 〉 2 〈 /sub 〉 scores (aOR = 1.24, 95% CI = 1.01–1.52) were closely related to END in only patients with ICAS. In patients without ICAS, neither of the risk scores were associated with END. 〈 b 〉 〈 i 〉 Conclusions: 〈 /i 〉 〈 /b 〉 High CHA 〈 sub 〉 2 〈 /sub 〉 DS 〈 sub 〉 2 〈 /sub 〉 -VASc score was associated with END in ischemic stroke patients with AF. This close relationship is more pronounced in patients with ICAS.
    Type of Medium: Online Resource
    ISSN: 1015-9770 , 1421-9786
    Language: English
    Publisher: S. Karger AG
    Publication Date: 2021
    detail.hit.zdb_id: 1482069-9
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  • 3
    In: Cerebrovascular Diseases, S. Karger AG
    Abstract: 〈 b 〉 〈 i 〉 Introduction: 〈 /i 〉 〈 /b 〉 Patients with atrial fibrillation-related stroke (AF-stroke) are prone to developing rapid ventricular response (RVR). We investigated whether RVR is associated with initial stroke severity, early neurological deterioration (END) and poor outcome at 3 months. 〈 b 〉 〈 i 〉 Methods: 〈 /i 〉 〈 /b 〉 We reviewed patients who had AF-stroke between January 2017 and March 2022. RVR was defined as having heart rate & gt;100 beats per minute on initial electrocardiogram. Neurological deficit was evaluated with National Institutes of Health Stroke Scale (NIHSS) score at admission. END was defined as increase of ≥2 in total NIHSS score or ≥1 in motor NIHSS score within first 72 h. Functional outcome was score on modified Rankin Scale at 3 months. Mediation analysis was performed to examine potential causal chain in which initial stroke severity may mediate relationship between RVR and functional outcome. 〈 b 〉 〈 i 〉 Results: 〈 /i 〉 〈 /b 〉 We studied 568 AF-stroke patients, among whom 86 (15.1%) had RVR. Patients with RVR had higher initial NIHSS score ( 〈 i 〉 p 〈 /i 〉 & lt; 0.001) and poor outcome at 3 months ( 〈 i 〉 p 〈 /i 〉 = 0.004) than those without RVR. The presence of RVR [adjusted odds ratio (aOR) = 2.13; 〈 i 〉 p 〈 /i 〉 = 0.013] was associated with initial stroke severity, but not with END and functional outcome. Otherwise, initial stroke severity [aOR = 1.27; 〈 i 〉 p 〈 /i 〉 = & lt;0.001] was significantly associated with functional outcome. Initial stroke severity as a mediator explained 58% of relationship between RVR and poor outcome at 3 months. 〈 b 〉 〈 i 〉 Conclusion: 〈 /i 〉 〈 /b 〉 In patients with AF-stroke, RVR was independently associated with initial stroke severity but not with END and functional outcome. Initial stroke severity mediated considerable proportion of association between RVR and functional outcome.
    Type of Medium: Online Resource
    ISSN: 1015-9770 , 1421-9786
    Language: English
    Publisher: S. Karger AG
    Publication Date: 2023
    detail.hit.zdb_id: 1482069-9
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  • 4
    Online Resource
    Online Resource
    S. Karger AG ; 2016
    In:  Cerebrovascular Diseases Vol. 41, No. 1-2 ( 2016), p. 8-12
    In: Cerebrovascular Diseases, S. Karger AG, Vol. 41, No. 1-2 ( 2016), p. 8-12
    Abstract: 〈 b 〉 〈 i 〉 Background: 〈 /i 〉 〈 /b 〉 The geometric properties of the parental artery affect the development of local atherosclerosis and perforator infarction. In this study, we aimed at investigating the association between vascular geometry of the posterior cerebral artery (PCA) and the development of isolated lateral thalamic infarction (LTI), the most frequent type of thalamic infarction. 〈 b 〉 〈 i 〉 Methods: 〈 /i 〉 〈 /b 〉 The geometric properties of the corresponding PCA in LTI patients were assessed and they include the diameters of the distal basilar artery (BA) and proximal PCA, distal BA - PCA angle, first PCA angle (angle between P1 and P2), and the presence of the posterior communicating artery (Pcom). These parameters obtained from the ipsilesional PCA were compared with the contralesional PCA and the corresponding PCA in age- and sex-matched controls. 〈 b 〉 〈 i 〉 Results: 〈 /i 〉 〈 /b 〉 Forty-five LTI patients were enrolled. The ipsilesional PCA in LTI patients demonstrated a greater ipsilesional P1 - P2 angle (81.4 ± 22.6 vs. 71.3 ± 23.2°, respectively; p = 0.04) and a higher prevalence of Pcom (42.2 vs. 13.3%; p = 0.002) when compared to control subjects. In comparison with the contralesional PCA, ipsilesional PCA demonstrated a smaller diameter, larger angle between P1 and P2 segment, and a higher prevalence of Pcom. The presence of hyperlipidemia (OR 3.548 (1.283-9.811); p = 0.02) and Pcom (OR 3.507 (1.104-11.135); p = 0.03) was a factor that was independently associated with LTI. 〈 b 〉 〈 i 〉 Conclusions: 〈 /i 〉 〈 /b 〉 Local hemodynamics in the PCA may be influenced by the P1 - P2 angle and the presence of Pcom, which are associated with the development of LTI.
    Type of Medium: Online Resource
    ISSN: 1015-9770 , 1421-9786
    Language: English
    Publisher: S. Karger AG
    Publication Date: 2016
    detail.hit.zdb_id: 1482069-9
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  • 5
    In: Cerebrovascular Diseases, S. Karger AG, Vol. 49, No. 3 ( 2020), p. 262-268
    Abstract: 〈 b 〉 〈 i 〉 Background: 〈 /i 〉 〈 /b 〉 Genetic variants may play a role in determining the location of cerebral atherosclerosis. We aimed to investigate the association between 〈 i 〉 RNF213 〈 /i 〉 , 〈 i 〉 MMP2 〈 /i 〉 , and genetic polymorphisms linked to vascular tortuosity with the location of cerebral arterial atherosclerosis. 〈 b 〉 〈 i 〉 Methods: 〈 /i 〉 〈 /b 〉 A prospective case-control study was conducted on patients with ischemic stroke and age- and sex-matched stroke-free controls. The stroke patients were categorized into those with intracranial artery atherosclerosis (ICAS), extracranial artery atherosclerosis (ECAS), and small vessel occlusion (SVO). Six single nucleotide polymorphisms (SNPs) including rs2118181 ( 〈 i 〉 FBN1 〈 /i 〉 ), rs2179357 ( 〈 i 〉 SLC2A10 〈 /i 〉 ), rs1036095 ( 〈 i 〉 TGFBR2 〈 /i 〉 ), rs243865 ( 〈 i 〉 MMP2 〈 /i 〉 ), rs1800470 ( 〈 i 〉 TGFB1 〈 /i 〉 ), and rs112735431 ( 〈 i 〉 RNF213 〈 /i 〉 ) were analyzed with the TaqMan Genotyping Assay, and the distribution of genotypes across groups was compared. 〈 b 〉 〈 i 〉 Results: 〈 /i 〉 〈 /b 〉 None of the 6 SNPs were associated with stroke on comparing the 449 stroke patients (71 with ECAS, 169 with ICAS, and 209 with SVO) to the 447 controls. In the subgroup analysis, the adjusted odds ratios (aORs) for age and sex indicated a significant association between rs112735431 and ICAS in the allele comparison analysis and in the additive and dominant model analyses. rs112735431 was associated with anterior circulation involvement and increased burden of cerebral atherosclerosis. rs2179357 was significantly associated with ICAS in the recessive model analysis, and rs1800470 was significantly associated with ECAS in the recessive model analysis when compared to controls. 〈 b 〉 〈 i 〉 Conclusion: 〈 /i 〉 〈 /b 〉 rs112735431 was associated with ICAS and increased atherosclerosis burden in Korean stroke patients. Further studies are needed to elucidate the role of rs112735431 and to confirm the association of rs2179357 and rs1800470 with cerebral atherosclerosis.
    Type of Medium: Online Resource
    ISSN: 1015-9770 , 1421-9786
    Language: English
    Publisher: S. Karger AG
    Publication Date: 2020
    detail.hit.zdb_id: 1482069-9
    Location Call Number Limitation Availability
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