Effects of Flumazenil on Recovery After Total Intravenous Anesthesia With Remimazolam

Trial statusRecruiting
Trial phaseNot applicable
Trial typeInterventional
Biological sexAll
Age65+
SponsorPusan National University Yangsan Hospital

About this trial

Remimazolam is a medication that has the advantage of a short half-life and reversibility with flumazenil. In clinical situations, the use of flumazenil for the reversal of sedation is common, but there is no precise indication for its administration. In this study, we aim to investigate the necessity of routine flumazenil use after administering remimazolam for intravenous anesthesia.

Eligibility criteria

This trial does not accept healthy volunteers

Qualifiers

Patients over 65 years old scheduled for hip joint surgery

Disqualifiers

Patients with impaired consciousness or delirium before surgery

Patients who are hemodynamically unstable before surgery

Patients with a history of neurological or neuromuscular disorders or use of medications that affect neurological or neuromuscular function

Patients who have taken sedatives (anti-anxiety medications, antipsychotics, antidepressants, sleep aids) within the past 24 hours

Trial design

Design model

Parallel

Treatments tested in this trial

  • Flumazenil

    Drug

    During induction, patients will receive remimazolam 6mg/kg/h with remifentanil TCI 1\~4 nanogram/mL. After patient loses consciousness, anesthesia will be maintained with remimazolam 1-2mg/kg/h combined with remifentanil. When procedure ends, infusion remimazolam stops and 0.3mg of flumazenil according to allocated groups.

  • normal saline

    Drug

    During induction, patients will receive remimazolam 6mg/kg/h with remifentanil TCI 1\~4 nanogram/mL. After patient loses consciousness, anesthesia will be maintained with remimazolam 1-2mg/kg/h combined with remifentanil. When procedure ends, infusion remimazolam stops and 0.9% normal saline according to allocated groups.

Treatment groups

24 Participants
are divided into 2 treatment groups
Group A: Normal saline groupPlacebo comparator 1 intervention
Group B: Flumazenil groupActive comparator 1 intervention

Trial outcomes

Primary outcomes

1

Difference in eye opening time between the two groups

Time, after stopping injection of remimazolam, to eye opening

Time frame
Up to two hours
2

Difference in extubation time between the two groups

Time, after stopping injection of remimazolam, to extubation

Time frame
Up to two hours

Secondary outcomes

1

Actual dose of flumazenil

Actual dose of flumazenil

Time frame
Up to two hours, From end of anesthesia to discharge form the post-anestheic care unit
2

Occurrence of re-sedation

Richmond Agitation Sedation Scale (RASS) score of -3 or lower(Score range: -5\~+4, lower score means more sedated state)

Time frame
Up to two hours, From end of anesthesia to discharge form the post-anestheic care unit
3

Side effects of flumazenil usage

Number of Participants with Seizures, agitation, arrhythmias, gastrointestinal symptoms, post operative nausea and vomiting, and degree of pain

Time frame
Up to two hours, From end of anesthesia to discharge form the post-anestheic care unit

Other outcomes

Sponsors and contacts

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