Prognostic implications of intracranial haemorrhage on dual-energy CT immediately following endovascular treatment for acute ischemic stroke

To describe the incidence, risk factors, and prognostic relevance of intracranial haemorrhage (ICH) immediately after endovascular treatment (EVT) for ischaemic stroke in the anterior circulation. EVT records from 2010 to 2019 were screened. Included patients underwent DECT within 3h post-EVT. Virtu...

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Bibliographic Details
Published in:	Journal of neuroradiology Vol. 51; no. 4; p. 101168
Main Authors:	Pinckaers, Florentina M.E., Robbe, Magretha M.Q., Olthuis, Susanne G.H., Boogaarts, Hieronymus D., van Zwam, Wim H., van Oostenbrugge, Robert J., Postma, Alida A.
Format:	Journal Article
Language:	English
Published:	France Elsevier Masson SAS 01-06-2024
Subjects:	Aged Aged, 80 and over Dual-energy CT Endovascular Procedures - methods Female Humans Intracranial hemorrhages Intracranial Hemorrhages - diagnostic imaging Intracranial Hemorrhages - etiology Ischaemic stroke Ischemic Stroke - diagnostic imaging Ischemic Stroke - surgery Male Middle Aged Prognosis Retrospective Studies Risk Factors Thrombectomy Tomography, X-Ray Computed - methods aICH HI EVT NCCT Prognosis Intracranial hemorrhages ICA-T VNC Dual-energy CT BBBD NIHSS ASPECTS M1/M2 ICA AIS rPH DECT IV sICH ICH mRS Thrombectomy eTICI PH IVH SAH Ischaemic stroke
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Summary:	To describe the incidence, risk factors, and prognostic relevance of intracranial haemorrhage (ICH) immediately after endovascular treatment (EVT) for ischaemic stroke in the anterior circulation. EVT records from 2010 to 2019 were screened. Included patients underwent DECT within 3h post-EVT. Virtual native reconstructions were evaluated for ICH according to the Heidelberg criteria and grouped into Heidelberg classes (HCs): [HC1] haemorrhagic infarction (HI)1, HI2 and parenchymal haematoma (PH)1; [HC2] PH2; [HC3] i.a. intraventricular and subarachnoid haemorrhage. If ICH corresponding to multiple HCs was observed, we assumed that the (largest) parenchymal ICH would have the greatest prognostic impact. Hence, a single HC was attributed by the following order of severity: HC2, HC1, HC3. The primary outcome was the modified Rankin Scale (mRS) at 90 days. The effect of asymptomatic ICH (aICH) and symptomatic ICH (sICH) of (1) HC1 or HC2 and (2) HC3 on patient outcomes was evaluated with multivariable regression after multiple imputation. Out of 651 records, 498 patients were included. Eighty-one (16%) patients showed ICH on post-EVT DECT, of which 19 were classified as HC1 (21% symptomatic), 6 as HC2 (100% symptomatic), and 56 as HC3 (14% symptomatic). ICH development was mainly associated with unfavourable procedural characteristics. Both aICH and sICH of HC1 or HC2 were associated with the mRS (aICH: adjusted [a]cOR 4.92, 95%CI [1.48–16.35]; sICH: acOR 12.97, 95%CI [2.39–70.26]) and mortality (aICH: aOR 10.08, 95%CI [2.48–40.88]; sICH: aOR 9.92, 95%CI [1.48–66.31]). Likewise, sICH of HC3 was associated with the mRS and mortality (acOR 19.91, 95%CI [4.03–98.35], and aOR 13.23, 95%CI [2.27–77.18], respectively). aICH of HC3 was not significantly associated with the mRS or mortality (acOR 0.87, 95%CI [0.48–1.57], and cOR 0.84, 95%CI [0.32–2.20], respectively). Immediate post-EVT ICH is a frequent finding. Except for aICH of HC3, any ICH is associated with poor long-term clinical outcomes. [Display omitted]
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ISSN:	0150-9861
DOI:	10.1016/j.neurad.2023.11.003