ISC 2026 | Standardizing intracranial hemorrhage terminology
Umberto Pensato, MD, Humanitas University, Milan, Italy, discusses the need for standardized and consistent terminology in intracranial hemorrhage research. Dr Pensato outlines a consensus-based classification that includes both intraparenchymal and intraventricular hemorrhage to improve measurement, interpretation, and clinical relevance of outcomes. This interview took place at the 2026 International Stroke Congress (ISC), held in New Orleans, LA.
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Transcript
So the terminology around intracranial hemorrhage is quite heterogeneous and ambiguous. So I think it’s very important that we speak and we use the same vocabulary and terminology when we speak about science, otherwise things can be a little bit confusing. So in our classification system that was standardized and was like a consensus between experts, we make the point that intracerebral hemorrhage should refer to both intraparenchymal hemorrhage and intraventricular hemorrhage...
So the terminology around intracranial hemorrhage is quite heterogeneous and ambiguous. So I think it’s very important that we speak and we use the same vocabulary and terminology when we speak about science, otherwise things can be a little bit confusing. So in our classification system that was standardized and was like a consensus between experts, we make the point that intracerebral hemorrhage should refer to both intraparenchymal hemorrhage and intraventricular hemorrhage. And this has some important clinical and research implications, especially because when we refer to hematoma expansion, sometimes we refer only to intraparenchymal hemorrhage and sometimes to both intraparenchymal and intraventricular hemorrhage. And we know from the latest studies that both mediate the association, both are associated with outcomes. So I think it’s very important that we measure both intraparenchymal hemorrhage volume and intraventricular hemorrhage volume, and we call them as intracerebral hemorrhage.
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