Interventional neuroradiology cases with intraprocedural clots: initial experience

Area of Science:

• Neurology
• Interventional Neuroradiology
• Medical Monitoring

Background:

• Intraprocedural clot formation is a rare but serious complication in interventional neuroradiology.
• Early detection of such events is crucial for patient management and outcomes.

Purpose of the Study:

• To investigate the utility of intraoperative monitoring (IOM) in detecting intraprocedural clot formation during interventional neuroradiology procedures.
• To assess the correlation between IOM changes and patient outcomes.

Main Methods:

• Retrospective review of 12 patients who experienced thromboembolic events during interventional neuroradiology procedures between 2006 and 2010.
• Analysis of electroneurodiagnostic recordings for changes indicative of clot formation.

Main Results:

• Intraoperative monitoring detected clot formation in all 12 patients, preceding angiographic changes in 5 cases.
• Six patients with no improvement in IOM findings experienced severe disability at discharge.
• Ten patients with clots had a history of subarachnoid hemorrhage prior to treatment.

Conclusions:

• Intraoperative monitoring is a valuable tool for identifying intraprocedural thromboembolic events during endovascular treatment.
• Deterioration in IOM responses correlates with poor patient outcomes.
• Electroneurodiagnostic monitoring is particularly recommended for patients with pre-existing subarachnoid hemorrhage.