Podcast
Questions and Answers
What is the objective of minimizing vena cava pressure during spinal surgery?
What is the objective of minimizing vena cava pressure during spinal surgery?
- To increase blood diversion to the epidural plexus
- To prevent bleeding during spinal surgery
- To reduce the risk of air embolism
- To avoid compression of the inferior vena cava (correct)
Why should unnecessary adjuncts in the oral cavity and pharynx be avoided during procedures that require substantial neck flexion?
Why should unnecessary adjuncts in the oral cavity and pharynx be avoided during procedures that require substantial neck flexion?
- To prevent airway obstruction (correct)
- To reduce neck flexion risks
- To avoid tongue injury
- To prevent macroglossia
Which surgical positions introduce a risk of air embolism due to efforts to minimize vena cava pressure?
Which surgical positions introduce a risk of air embolism due to efforts to minimize vena cava pressure?
- Prone position only
- Lateral decubitus position
- Wilson, Andrews, and Jackson variants (correct)
- Supine position
What can occur as a consequence of compression ischemia at the base of the tongue during surgical procedures?
What can occur as a consequence of compression ischemia at the base of the tongue during surgical procedures?
Which is NOT a potential outcome of placing unnecessary adjuncts in the oral cavity and pharynx during surgical procedures?
Which is NOT a potential outcome of placing unnecessary adjuncts in the oral cavity and pharynx during surgical procedures?
Why is it important to flex the neck substantially during both cervical and posterior fossa procedures?
Why is it important to flex the neck substantially during both cervical and posterior fossa procedures?
What is the recommended distance to be maintained between the chin/mandible and the sternum/clavicle to prevent excessive reduction of the oropharynx's anterior-posterior diameter?
What is the recommended distance to be maintained between the chin/mandible and the sternum/clavicle to prevent excessive reduction of the oropharynx's anterior-posterior diameter?
Why do centers that routinely use transesophageal echocardiography in neurosurgery mostly use pediatric diameter probes?
Why do centers that routinely use transesophageal echocardiography in neurosurgery mostly use pediatric diameter probes?
What has been hypothesized as a cause of rare instances of unexplained postoperative quadriplegia related to the sitting position?
What has been hypothesized as a cause of rare instances of unexplained postoperative quadriplegia related to the sitting position?
Why do some clinicians justify using evoked response monitoring during the positioning phase for patients at high risk during a sitting procedure?
Why do some clinicians justify using evoked response monitoring during the positioning phase for patients at high risk during a sitting procedure?
Why is neck flexion considered a relative contraindication to using the sitting position in patients with significant degenerative disease of the cervical spine?
Why is neck flexion considered a relative contraindication to using the sitting position in patients with significant degenerative disease of the cervical spine?
What aspect requires consideration when using the sitting position in patients with associated cerebral vascular disease?
What aspect requires consideration when using the sitting position in patients with associated cerebral vascular disease?
Why is it important to raise the safe lower limit for neck flexion in some patients?
Why is it important to raise the safe lower limit for neck flexion in some patients?
What can happen if substantial or sustained retractor pressure is applied during surgery?
What can happen if substantial or sustained retractor pressure is applied during surgery?
In what group of patients should the safe lower limit for neck flexion be raised?
In what group of patients should the safe lower limit for neck flexion be raised?
Why should the configuration with the head-holder support attached to the thigh portion of the table be avoided?
Why should the configuration with the head-holder support attached to the thigh portion of the table be avoided?
What can sustained neck flexion during surgery lead to in some patients?
What can sustained neck flexion during surgery lead to in some patients?
What is a potential consequence of applying substantial retractor pressure to brain or spinal cord tissue?
What is a potential consequence of applying substantial retractor pressure to brain or spinal cord tissue?
