Clipping of cerebral aneurysm complicated by intraoperative rupture


  • Artur V. Byndiu Romodanov Neurosurgery Institute, Kyiv, Ukraine
  • Mikhail Y. Orlov Romodanov Neurosurgery Institute, Kyiv, Ukraine
  • Maksim V. Yeleynik Romodanov Neurosurgery Institute, Kyiv, Ukraine
  • Svetlana O. Lytvak Romodanov Neurosurgery Institute, Kyiv, Ukraine



arterial aneurysm, intraoperative aneurysm rupture, arteria cerebral media, intraoperative complications, dura mater


Despite the development of neurosurgical treatment of brain aneurysm (BA), the problem of intraoperative aneurysm rupture (IAR) remains relevant. The IAR is the most common intraoperative complication, which, according to various authors, occurs in 5.6–35.0 % cases. There are contact and non-contact IAR. Noncontact are those that occur at the early stages of the operation, before the dissection of dura mater, when there is no mechanical effect on the aneurysm. Noncontact IAR accounts for 2.5–9.0 % of the total amount of IAR. Contact IAR occurs in 91–94 % of observations. IAR occurs predominantly in arachnoid dissection (48–81 %). The main criteria and risk factors for the IAR are the size of BA, its localization, the operation duration after the initial rupture of BA, the presence of hypertension and the severity of the patient’s condition before surgery. The greatest risk of IAR is predisposed by aneurysms of the anterior communicating artery complex — an anterior cerebral artery and internal carotid artery. Performing surgery at the early stages after aneurysm rupture in the presence of cerebral edema along with the difficult access to BA and with the need to perform sufficient traction of the brain substance is more often accompanied by IAR.

IAR results in deterioration of the results of operations and an increase in mortality by 1.5–3.0 times. The prognosis of survival of patients after IAR at the stages of aneurysm isolation and clipping is more favourable than at the initial stages of surgery.

Author Biographies

Artur V. Byndiu, Romodanov Neurosurgery Institute, Kyiv

Department of Neurosurgical Pathology of Head and Neck Vessels

Mikhail Y. Orlov, Romodanov Neurosurgery Institute, Kyiv

Department of Neurosurgical Pathology of Head and Neck Vessels

Maksim V. Yeleynik, Romodanov Neurosurgery Institute, Kyiv

Department of Neurosurgical Pathology of Head and Neck Vessels

Svetlana O. Lytvak, Romodanov Neurosurgery Institute, Kyiv

Department of Neurosurgical Pathology of Head and Neck Vessels


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How to Cite

Byndiu, A. V., Orlov, M. Y., Yeleynik, M. V., & Lytvak, S. O. (2019). Clipping of cerebral aneurysm complicated by intraoperative rupture. Ukrainian Neurosurgical Journal, 25(3), 27–34.



Review articles