Thromboatheromatous coarctation of the aorta diagnosed with intraoperative TOE during emergent open aneurysm clipping
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Updated: Feb 10, 2026

Microsurgical Clip Obliteration of Middle Cerebral Aneurysm Using Intraoperative Flow Assessment
Published on: September 25, 2009
John S McNeil1, Amanda M Kleiman1, Edward C Nemergut1
1Anesthesiology, University of Virginia, Charlottesville, Virginia, USA.
A woman in her 50s presenting for emergent intracranial surgery was discovered to have a large incongruity in blood pressure between her right arm and her other extremities. Intraoperative rescue transoesophageal echocardiography (TOE) revealed a large thromboatheromatous burden in her descending aorta resulting in a functional coarctation. Usually diagnosed via CT imaging, we present what we believe to be the first published case diagnosed intraoperatively using TOE. After the diagnosis was made, blood pressure goals were adjusted to provide sufficient perfusion distally and her surgery was completed otherwise uneventfully.
A woman in her 50s presenting for emergent intracranial surgery was discovered to have a large incongruity in blood pressure between her right arm and her other extremities. Intraoperative rescue transoesophageal echocardiography (TOE) revealed a large thromboatheromatous burden in her descending aorta resulting in a functional coarctation. Usually diagnosed via CT imaging, we present what we believe to be the first published case diagnosed intraoperatively using TOE. After the diagnosis was made, blood pressure goals were adjusted to provide sufficient perfusion distally and her surgery was completed otherwise uneventfully.
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