Asymptomatic Striatocapsular slit-like Hemorrhage as a Severity Marker in Patients with Hypertensive Angiopathy
2020
Abstract Background Concomitant asymptomatic striatocapsular slit-like hemorrhage (SSH) is occasionally found in patients of spontaneous intracerebral hemorrhage (ICH), but was seldomly described in the literature. In this study, we described the clinico-radiological features of asymptomatic SSH in ICH patients with hypertensive microangiopathy. Methods and Results 246 patients with strictly deep or mixed deep and lobar ICH/microbleeds were included. SSH was defined as hypointense lesions involving the lateral aspect of lentiform nucleus or external capsule in slit shape (>1.5 cm) on susceptibility-weighted imaging without history of associated symptoms. Demographics and neuroimaging markers were compared between patients with SSH and those without. Patients with SSH (n=24, 10%) and without SSH had comparable age (62.0 ± 12.6 vs. 62.3 ± 13.5, p = 0.912) and vascular risk factor profiles including the diagnosis of chronic hypertension, diabetes, and dyslipidemia (all p>0.05). SSH was associated with more common lobar microbleeds (79.2% vs 48.2%, p = 0.005), lacunes (75% vs. 41.4%, p = 0.002) and higher white matter hyperintensity (WMH) volumes (24.1 [10.4–46.3] vs. 13.9 [7.0–24.8] mL, p = 0.012) on MRI, as well as more frequent left ventricular hypertrophy (LVH) (50.0% vs. 20.5%, p = 0.004) and albuminuria (41.7% vs. 19.4%, p = 0.018). In multivariable analyses, SSH remains independently associated with LVH (p = 0.017) and albuminuria (p = 0.032) after adjustment for age, sex, microbleed, lacune and WMH volume. Conclusions Asymptomatic SSH is associated with more severe cerebral small vessel disease-related change on brain MRI, and hypertensive cardiac and renal injury, suggesting a more advanced stage of chronic hypertension.
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