Clinical Picture Minimally invasive endoscopic evacuation of intracerebral haemorrhage: reaching the goal Christopher P Kellner, Rui Song, Zachary S Troiani, Luis C Ascanio, J Mocco A 60-year-old man was brought to our emergency room after he collapsed while working out in a gym. He was unable to speak to his personal trainer or move his right side after he fell. He had a history of uncontrolled hypertension, hyperlipidaemia, and a previous left occipital stroke. When we saw him, his blood pressure was 205/115 mm Hg, which we controlled with intra­ venous nicardipine. He was not on any anticoagulation or antiplatelet medication. Physical examination showed the man had a profound right-sided hemiplegia, expres­ sive aphasia, and leftward gaze deviation. A non-contrast CT scan (figure) of the man’s head showed a 44 mL intracerebral haemorrhage in the left basal ganglia without intraventricular extension. CT angiography of the head showed a fusiform aneurysm characterised by a 1 cm dilatation of the left supraclinoid internal carotid artery distant from the haemorrhage site and no evidence of vascular malformation. A repeat noncontrast head CT, performed 6 h after the first, found that the clot had not increased in size. MRI of the patient’s brain showed scattered small cerebellar and occipital infarcts, diffuse white matter disease, and subcortical small vessel disease. The following day, 36·5 h after symptom onset, we performed a left frontal minimally invasive endoscopic intracerebral haemorrhage evacuation with the Artemis aspiration device (Penumbra, Alameda, CA, USA) in our angiography suite. A non-contrast CT scan (figure) of the patient’s head, performed on postoperative day 1, demonstrated that the haemorrhage had almost completely been evacuated, with just 1 mL remaining, and a small cavity in the place where the haematoma had been. After 2 weeks in the neurosurgical intensive care unit, the patient was discharged to an acute rehabilitation facility, where he regained movement in his right side and the ability to speak short phrases. 1 year after his haemorrhage, he was living independently with home nursing care and he was able to walk with a walker for assistance. A CT scan at that time showed a residual haematoma cavity (figure). Minimally invasive intracerebral haemorrhage evacua­ tion is an increasingly common surgical technique used to treat spontaneous intracerebral haemorrhage. A study in The Lancet, evaluating a different minimally invasive www.thelancet.com Vol 395 January 11, 2020 evacuation technique—stereotactic catheter placement with aspiration and thrombolysis—showed that the intervention did not improve functional outcome in patients with intracerebral haemorrhage. However, the results did show that in a prespecified secondary analysis— when no more than 15 mL of haematoma remained at the end of the treatment—patients had improved functional outcome at 1 year compared to medically managed controls. Endoscopic intracerebral haemorrhage evacu­ ation, as we have shown here, is an alternative type of minimally invasive evacuation technique, with some evidence suggesting that it can reliably meet established surgical goals. Even though endoscopic intracerebral haemorrhage evacuation may be achievable in patients—as in our case— they may still be left with functional impairment. Further, it is worth noting that although minimally invasive evacuation can be technically successful, several other factors impact long-term clinical outcome in intracerebral haemorrhage, including baseline functional status, patient age, the presence or absence of intraventricular haemorrhage, severity of white matter disease, subsequent hospital complications, and other confounders: the true effect of this procedure remains unknown. Contributors JM and CPK cared for the patient. All authors participated in writing and approved the final manuscript. Written consent for publication was obtained from the patient and his legally authorised representative. © 2020 Elsevier Ltd. All rights reserved. A B Lancet 2020; 395: e5 Department of Neurosurgery, Mount Sinai Health System (C P Kellner MD), Icahn School of Medicine at Mount Sinai (R Song BA, Z S Troiani BA, L C Ascanio MD, J Mocco MD), New York, NY, USA Correspondence to: Dr Christopher P Kellner, Department of Neurosurgery, 1450 Madison Avenue, Cerebrovascular Center, Mount Sinai Hospital, New York, NY 10035, USA christopher.kellner@ mountsinai.org For the study see Articles Lancet 2019; 393: 1021–32 C Figure: Minimally invasive intracerebral haemorrhage removal A CT of the patient’s head on admission shows a 44 mL left basal ganglia intracerebral haemorrhage (A). 24 h after evacuation a CT shows 1 mL of residual haematoma with a residual cavity and a small amount of bilateral intraventricular haemorrhage settled in the occipital horns (B). 1 year later a CT shows the residual haematoma cavity (C). e5