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- Jusufovic, M., et al.
(författare)
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Effects of blood pressure lowering in patients with acute ischemic stroke and carotid artery stenosis
- 2015
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Ingår i: International Journal of Stroke. - : SAGE Publications. - 1747-4930 .- 1747-4949. ; 10:3, s. 354-359
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Tidskriftsartikel (refereegranskat)abstract
- BackgroundThe Scandinavian Candesartan Acute Stroke Trial (SCAST) showed no beneficial clinical effects of blood pressure lowering with the angiotensin receptor blocker candesartan in the acute phase of stroke. In the present analysis we wanted to see if the effects of blood pressure lowering are harmful in the subgroup of patients with carotid artery stenosis. MethodsSCAST was a randomized- and placebo-controlled, double-masked trial of 2029 patients with acute stroke and high systolic blood pressure (140mmHg). Of 1733 patients with ischemic stroke 993 underwent carotid artery imaging, and the degree of stenosis was categorized as no/insignificant (0-49%, n=806), moderate (50-69%, n=97) or severe (70%, n=90). The trial's two co-primary effect variables were the composite end-point of vascular death, stroke or myocardial infarction, and functional outcome at six-months, according to the modified Rankin Scale. ResultsAmong patients with moderate or severe carotid artery stenosis the vascular end-point occurred in 9 of 87 patients (103%) treated with candesartan and in 17 of 100 controls (170%), and there was no evidence of a different risk in patients with severe stenosis (adjusted hazard ratio 074, 95% confidence interval 028-196, P=054). For functional outcome there was also no clear difference, although in patients with severe stenosis the risk of a poor outcome was somewhat higher than in any of the other groups (adjusted odds ratio 224, 95% confidence interval 071-709, P=016). Progressive stroke also occurred more often in patients with carotid artery stenosis treated with candesartan (10 of 87 patients (115%) vs. 4 of 100 patients (40%)), with a trend towards an increased risk with increasing severity of stenosis (P-value for linear trend=004). ConclusionsThere is no clear evidence that the effect of candesartan is qualitatively different in patients with carotid artery stenosis, but there are signals that patients with severe stenosis are at particularly high risk of stroke progression and poor functional outcome.
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- Jusufovic, M., et al.
(författare)
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Effects of Candesartan in the Acute Phase of Intracerebral Hemorrhage
- 2019
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Ingår i: Journal of Stroke and Cerebrovascular Diseases. - : Elsevier BV. - 1052-3057. ; 28:8, s. 2262-2267
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Tidskriftsartikel (refereegranskat)abstract
- Background and Purpose: Uncertainty persists over the effects of blood pressure-lowering treatment in acute intracerebral hemorrhage (ICH). We assessed the effects of treatment with candesartan in acute ICH and according to different types of hematoma. Methods: Post-hoc analysis of the Scandinavian Candesartan Acute Stroke Trial, a randomized- and placebo-controlled, double-masked trial of candesartan in patients with any stroke within the acute phase (<30 hours) and high systolic blood pressure (≥140 mm Hg). We collected baseline computed tomography scans of participants with ICH, and characterized hematoma volume (planimetric approach), location (deep versus lobar or infratentorial), hemisphere side, and presence of intraventricular hemorrhage. The trial's 2 coprimary effect variables were the composite endpoint of vascular death, stroke or myocardial infarction, and functional outcome at 6 months according to the modified Rankin scale. We used Cox, ordinal, and binary logistic regression for analysis and adjusted for key, predefined prognostic variables. Results: Of 274 participants with ICH, computed tomography scans were available in 205 patients (74.8%). There were no significant differences between the candesartan and placebo groups with respect to hematoma volume (median 15.6 mL versus 13.5 mL, P = .96), deep location (77% versus 72%, P = .64), right hemisphere (49% versus 51%, P = .46), and presence of intraventricular hemorrhage (18% versus 11%, P = .22). Candesartan was associated with a significant increase in poor functional outcome in patients with deep hematoma (adjusted common odds ratio 2.27, 95% confidence interval 1.23-4.18, P = .009, P for interaction .015), but there was no differential effect on functional outcome or vascular events in any of the other imaging subgroups. Conclusions: Candesartan was not associated with any beneficial effect when initiated in the acute phase of ICH, a possible adverse effect on functional outcome in patients with deep hematomas cannot be ruled out by this study alone. © 2019 Elsevier Inc.
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