FREE CNIM Vascular Surgeries Questions and Answers
Which monitoring modality can be used to assess cerebral function during vascular surgeries involving the aortic arch?
NIRS is used to monitor cerebral oxygenation and assess cerebral function during surgeries involving the aortic arch.
What type of anesthesia is preferred for optimal NIOM results during vascular surgery?
TIVA is preferred as it has less impact on neurophysiological signals compared to inhalational anesthetics.
Which factor can most significantly affect the quality of NIOM signals during vascular surgery?
The type of anesthesia can significantly influence the quality of neurophysiological monitoring signals.
What action should be taken if there is a sudden loss of motor evoked potentials (MEPs) during a vascular procedure?
A sudden loss of MEPs could indicate potential neural injury, requiring immediate attention from the surgical team.
What does the term "baseline" refer to in the context of NIOM?
Baseline recordings are taken before any surgical intervention to provide a reference for detecting changes during surgery.
During carotid endarterectomy, which type of monitoring is most critical for assessing the functional integrity of the cortex?
EEG is critical for assessing the functional integrity of the cortex by monitoring electrical activity in the brain.
What is the primary goal of continuous EEG monitoring during aortic arch surgery?
Continuous EEG monitoring helps detect changes in cortical activity that may indicate ischemia or other complications.
Which modality is commonly used in NIOM to assess cerebral perfusion during carotid endarterectomy?
TCD ultrasonography is used to monitor blood flow velocities in cerebral arteries, helping to assess cerebral perfusion.
During abdominal aortic aneurysm (AAA) repair, which monitoring technique is most relevant to assess spinal cord integrity?
SSEPs are used to monitor the integrity of the spinal cord during AAA repair to detect potential ischemic injury.
What is the primary purpose of neurophysiological intraoperative monitoring (NIOM) during vascular surgeries?
NIOM during vascular surgeries aims to continuously monitor the integrity of neural pathways to prevent ischemic damage.
What does a significant drop in SSEPs during vascular surgery indicate?
A significant drop in SSEPs can indicate potential ischemic injury to the neural pathways being monitored.