caa a22 4500 445329211 CHVBK 20180317142731.0 cr unu---uuuuu 170323e20111001xx s 000 0 eng 10.1007/s10143-011-0332-7 doi (NATIONALLICENCE)springer-10.1007/s10143-011-0332-7 Long-term follow-up survey reveals a high yield, up to 30% of patients presenting newly detected aneurysms more than 10years after ruptured intracranial aneurysms clipping [Elektronische Daten] [Michaël Bruneau, Michal Rynkowski, Karina Smida-Rynkowska, Jacques Brotchi, Olivier De Witte, Boris Lubicz] The need to pursue long-term follow-up in patients treated for a ruptured aneurysm remains debated. New aneurysms development is a crucial element to consider but remains scarcely analyzed especially after a mean follow-up longer than 10years. Our study was designed to provide rates of newly developed aneurysms in patients who have undergone prior clipping who were not followed with serial imaging. Patients were included if they were (1) treated more than 10years ago by clipping of a ruptured aneurysm, (2) independent at time of discharge, (3) presently younger than 65years, and if (4) they agreed to undergo a late digital subtraction angiography (DSA) control or to transmit results of a recent one performed elsewhere. Twenty patients were included with a mean delay between aneurysm treatment and late DSA of 18.0years (10-26.5years). Out of these patients, six (30%) harbored new aneuryms. Of these six individuals, four (66.6%) presented multiple aneurysms with a total of 15 newly discovered aneurysms. Aneurysm sizes ranged from 1 to 10mm. One patient suffered from a de novo aneurysm rupture. Multiple aneurysms at the time of the first hemorrhage were a risk factor in developing de novo aneurysm (p = 0.0175). In conclusion, based on a 30% rate of new aneurysm formation in patients clipped more than a decade ago, close screening on a very long-term perspective is encouraged. This study suggests aneurysm formation to be a continuous process. Springer-Verlag, 2011 Intracranial aneurysm nationallicence De novo nationallicence Surgery nationallicence Long-term follow-up nationallicence Digital subtraction angiography nationallicence Bruneau Michaël Department of Neurosurgery, Hôpital Erasme, Université Libre de Bruxelles, Brussels, Belgium aut Rynkowski Michal Department of Neurosurgery, Hôpital Erasme, Université Libre de Bruxelles, Brussels, Belgium aut Smida-Rynkowska Karina Department of Neurology, Hôpital Erasme, Université Libre de Bruxelles, Brussels, Belgium aut Brotchi Jacques Department of Neurosurgery, Hôpital Erasme, Université Libre de Bruxelles, Brussels, Belgium aut De Witte Olivier Department of Neurosurgery, Hôpital Erasme, Université Libre de Bruxelles, Brussels, Belgium aut Lubicz Boris Department of Neuroradiology, Hôpital Erasme, Université Libre de Bruxelles, Brussels, Belgium aut Neurosurgical Review Springer-Verlag 34/4(2011-10-01), 485-496 0344-5607 34:4<485 2011 34 10143 https://doi.org/10.1007/s10143-011-0332-7 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10143-011-0332-7 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Bruneau Michaël Department of Neurosurgery, Hôpital Erasme, Université Libre de Bruxelles, Brussels, Belgium aut NATIONALLICENCE 700 1- Rynkowski Michal Department of Neurosurgery, Hôpital Erasme, Université Libre de Bruxelles, Brussels, Belgium aut NATIONALLICENCE 700 1- Smida-Rynkowska Karina Department of Neurology, Hôpital Erasme, Université Libre de Bruxelles, Brussels, Belgium aut NATIONALLICENCE 700 1- Brotchi Jacques Department of Neurosurgery, Hôpital Erasme, Université Libre de Bruxelles, Brussels, Belgium aut NATIONALLICENCE 700 1- De Witte Olivier Department of Neurosurgery, Hôpital Erasme, Université Libre de Bruxelles, Brussels, Belgium aut NATIONALLICENCE 700 1- Lubicz Boris Department of Neuroradiology, Hôpital Erasme, Université Libre de Bruxelles, Brussels, Belgium aut NATIONALLICENCE 773 0- Neurosurgical Review Springer-Verlag 34/4(2011-10-01), 485-496 0344-5607 34:4<485 2011 34 10143 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer