A big white dot after CPR

Sushma Kola; Alexander D Ginsburg; Laura Harper; Laura E Walker; Sherri Braksick; Eelco F M Wijdicks

doi:10.1186/s12245-021-00376-3

A big white dot after CPR

Int J Emerg Med. 2021 Sep 10;14(1):51. doi: 10.1186/s12245-021-00376-3.

Authors

Sushma Kola¹, Alexander D Ginsburg², Laura Harper³, Laura E Walker², Sherri Braksick⁴, Eelco F M Wijdicks⁴

Affiliations

¹ Department of Neurology, Mayo Clinic, 200 First Street, SW, Rochester, MN, 55902, USA. Sushma.Kola@nm.org.
² Department of Emergency Medicine, Mayo Clinic, 200 First Street, SW, Rochester, MN, 55902, USA.
³ Department of Radiology, Mayo Clinic, 200 First Street, SW, Rochester, MN, 55902, USA.
⁴ Department of Neurology, Mayo Clinic, 200 First Street, SW, Rochester, MN, 55902, USA.

Abstract

Introduction: Patients may remain comatose after the resumption of spontaneous circulation with cardiopulmonary resuscitation. A primary neurologic event may precede a cardiac standstill.

Case report: We present a 33-year-old patient with successful resuscitation for pulseless electrical activity and a "normal computed tomography (CT) scan." Further scrutiny showed a hyperdense basilar artery sign ('big white dot') that led to a CT angiogram confirming an embolus to the proximal basilar artery. His examination showed fixed and dilated midsize (mesencephalic) pupils and extensor posturing. Endovascular retrieval of the clot was successful, but there was a devastating ischemic injury to the brainstem.

Conclusion: This case reminds us to consider neurologic causes of cardiac arrest.

Keywords: Cerebrovascular disease; Interventional; MRI; Neuroradiology; Stroke.