chapter 11. quiz 6. Epileptogenesis and Anesthesia Complications
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Questions and Answers

What is a major concern related to seizure activity during anesthesia?

  • Increased risk of neuroanesthesia complications
  • Insufficient supply of anesthetics leading to seizures
  • Inadequate post-anesthesia control
  • Potential for neuronal injury due to lack of recognition (correct)

    • Why should the use of enflurane be avoided in patients predisposed to seizures?

  • potentially epileptogenic (correct)
  • It causes adverse outcomes in all cases
  • It elevates hypocapnia levels
  • It has an EEG-activating property post-surgery

    • What is one way enflurane has been used intraoperatively in neuroanesthesia?

  • To activate and identify seizure foci (correct)
  • To prevent hypocapnia-induced seizures
  • To induce postoperative spike activities
  • To reduce cerebral metabolic rate (CMR)

    • How does hypocapnia affect seizure-type discharges during enflurane anesthesia?

    <p>It potentiates the discharges</p> Signup and view all the answers

    Why is enflurane use with hypocapnia advised against in patients predisposed to seizures?

    <p>It can elevate CMR and induce seizures</p> Signup and view all the answers

    What is one benefit of enflurane's EEG-activating property during surgery?

    <p>To locate and identify seizure foci for resection</p> Signup and view all the answers

    Which inhalational anesthetic has been successfully used to control EEG seizure activity in refractory status epilepticus?

    <p>Isoflurane</p> Signup and view all the answers

    In which scenario has the use of sevoflurane shown the ability to evoke epileptiform activity?

    <p>In patients without a recognized seizure diathesis</p> Signup and view all the answers

    Why should the use of sevoflurane in patients with epilepsy be approached with caution?

    <p>It has a small but potential to evoke epileptiform activity</p> Signup and view all the answers

    Which inhalational anesthetic has a noted association with seizures during high concentrations in children, even those without a recognized seizure diathesis?

    <p>Sevoflurane</p> Signup and view all the answers

    What is a potential risk associated with administering larger doses of Methohexital to produce burst suppression of the EEG?

    <p>Refractory seizures</p> Signup and view all the answers

    What is the primary purpose of using Methohexital during cortical mapping?

    <p>Inducing seizure foci</p> Signup and view all the answers

    What distinguishes the seizure activity related to Methohexital administration in neurosurgical patients from that seen in ECT patients?

    <p>Prolonged seizure activity</p> Signup and view all the answers

    How has ketamine been utilized in the context of status epilepticus?

    <p>For controlling seizure episodes</p> Signup and view all the answers

    What conclusion can be drawn about the significance of ketamine-induced seizure activity?

    <p>Not a significant concern</p> Signup and view all the answers

    In what scenario does the use of ketamine pose a risk to patients?

    <p>Patients with an epileptic diathesis</p> Signup and view all the answers

    What effect on EEG activity has been observed with the use of etomidate in epileptic patients?

    <p>It induces generalized epileptic EEG activity</p> Signup and view all the answers

    In comparison to methohexital and propofol, what is a characteristic of seizures induced by etomidate during ECT?

    <p>longer seizures</p> Signup and view all the answers

    Which anesthetic is NOT recommended for patients with a history of epilepsy due to its potential impact on seizure activity?

    <p>Etomidate</p> Signup and view all the answers

    What distinguishes the myoclonus caused by etomidate from the seizures induced by methohexital and propofol?

    <p>Presence of epileptiform activity on EEG</p> Signup and view all the answers

    What effect has been observed on ECT seizures when comparing propofol to methohexital?

    <p>Propofol shortens ECT seizures</p> Signup and view all the answers

    What role has propofol been suggested to play in terms of being a proconvulsant?

    <p>Propofol is unlikely to exhibit proconvulsant properties</p> Signup and view all the answers

    What EEG activity has been observed alongside the use of propofol despite no reported seizures?

    <p>Pronounced high-amplitude beta-frequency activity</p> Signup and view all the answers

    What is a distinguishing factor between methohexital and propofol in relation to ECT seizures?

    <p>Propofol induces shorter ECT seizures</p> Signup and view all the answers

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