ClinicalTrials.gg
Status unknownNCT02141737Updated May 19, 2014

Effect of Pre-injection of Lidocaine on Myoclonus Induced by Induction With Etomidate in Elderly Patients During General Anesthesia

A Phase 4 interventional study of Lidocaine Hydrochloride Injection and Etomidate Fat Emulsion Injection in General Anesthesia, sponsored by Tang-Du Hospital. Status unknown at 1 site in China. Open to participants aged 60 Years to 81 Years. Per ClinicalTrials.gov, last updated 2014-05-19.

Sponsored by Tang-Du Hospital · Phase 4, Interventional, and Treatment

The sponsor has not verified this record recently (last verified May 2014), so the status shown — last known as Recruiting — may be out of date.
Phase
Phase 4
Study type
Interventional
Enrollment
272
Allocation
Randomized
Ages
60 Years to 81 Years
Sex
All
01

Study summary

To evaluate the effect of pre-injection of lidocaine on myoclonus induced by induction with etomidate during general anesthesia in elderly patients

02

Conditions studied

  • General Anesthesia
03

In context

Lead sponsor

Tang-Du Hospital is the lead sponsor of 167 studies on the registry; 78 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
60 Years to 81 Years
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

    1. Aged between 60 and 81 years 2. : 20 to 30 kg/m2 3. American Society of Anesthesiology (ASA) Physical Status: Ⅰ or Ⅱ 4. Signed form

Exclusion criteria

Exclusion Criteria:

    1. Use of sedatives or opioids 2. History of central nervous system diseases, like epilepsy, shaking palsy, or chorea, etc 3. Hyperthyroidism 4. Serious diabetes 5. Hyperkalemia 6. Cardiac surgery 7. Serious ventricular disease or atrioventricular block 8. Liver or renal dysfunction 9. Allergies to amide local anesthetics or fat emulsion
Terms in these criteria, in plain language(2)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

BMI (body mass index)

Weight in kilograms divided by height in metres squared. Example: 70 kg and 1.75 m gives 70 ÷ (1.75 × 1.75) ≈ 22.9.

What counts as overweight or obesity differs between countries (some use lower cut-offs), so go by the range the study states.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

05

Study design

Phase
Phase 4
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Double (Participant, Investigator)
Enrollment
272 participants (estimated)

Study arms

  • Placebo comparator
    Group C

    Induction protocol: patients will be given 2 ml normal saline solution, 1 minutes later, 0.3 mg/kg etomidate is injected within 30 to 60 s, and 90 s after the injection of etomidate, 0.2 mg/kg midazolam, 3 μg/kg fentanyl, 0.6 mg/kg rocuronium are given sequently.

    Drug: Etomidate Fat Emulsion Injection · Drug: normal saline · Drug: Midazolam Injection · Drug: Fentanyl Citrate Injection · Drug: Rocuronium Injection

  • Experimental
    Group L1

    Induction protocol: patients will be given 2 ml diluted lidocaine injection in which 20 mg lidocaine is contained, 1 minutes later, 0.3 mg/kg etomidate is injected within 30 to 60 s, and 90 s after the injection of etomidate, 0.2 mg/kg midazolam, 3 μg/kg fentanyl, 0.6 mg/kg rocuronium are given sequently.

    Drug: Lidocaine Hydrochloride Injection · Drug: Etomidate Fat Emulsion Injection · Drug: normal saline · Drug: Midazolam Injection · Drug: Fentanyl Citrate Injection · Drug: Rocuronium Injection

  • Experimental
    Group L2

    Induction protocol: patients will be given 2 ml diluted lidocaine injection in which 30 mg lidocaine is contained, 1 minutes later, 0.3 mg/kg etomidate is injected within 30 to 60 s, and 90 s after the injection of etomidate, 0.2 mg/kg midazolam, 3 μg/kg fentanyl, 0.6 mg/kg rocuronium are given sequently.

    Drug: Lidocaine Hydrochloride Injection · Drug: Etomidate Fat Emulsion Injection · Drug: normal saline · Drug: Midazolam Injection · Drug: Fentanyl Citrate Injection · Drug: Rocuronium Injection

  • Experimental
    group L3

    Induction protocol: patients will be given 2 ml lidocaine injection in which 40 mg lidocaine is contained, 1 minutes later, 0.3 mg/kg etomidate is injected within 30 to 60 s, and 90 s after the injection of etomidate, 0.2 mg/kg midazolam, 3 μg/kg fentanyl, 0.6 mg/kg rocuronium are given sequently.

    Drug: Lidocaine Hydrochloride Injection · Drug: Etomidate Fat Emulsion Injection · Drug: Midazolam Injection · Drug: Fentanyl Citrate Injection · Drug: Rocuronium Injection

Interventions

  • Lidocaine injection should be give before the injection of etomidate. In groups L1 and L2, 20 mg and 30 mg lidocaine injection will be diluted to 2ml separately.

  • 1 minute after the injection of lidocaine, 0.3 mg/kg etomidate will be given in 30 to 60 s.

    Also known as: Fu Er Li

  • Drugnormal saline

    2 ml normal saline will be given 1 minute before the injection of etomidate in patients in group C, and in group L1 and L2, normal saline is used to dilute lidocaine injection to 2 ml.

  • 0.02 mg/kg midazolam will be given to the patients in all groups 90 s after the injection of etomidate.

    Also known as: Li Yue Xi

  • 3 μg/kg fentanyl will be given to patients in all groups after the injection of midazolam.

  • 0.6 mg/kg rocuronium will be given to patients in all groups after the injection of fentanyl.

06

What researchers measure

Primary outcomes

  1. severity of myoclonus induced by

    myoclonic movements are graded as 0=no myoclonus, 1=mild myoclonus (short movement of a body segment e.g., a finger or a wrist), 2=moderate myoclonus (mild movement of two different muscle groups e.g., face and arm), or 3=severe myoclonus (intense myoclonic movement in two or more muscle groups, fast adduction of a limb)

    Time frame: 90 seconds from the beginning of etomidate injection

  2. intensity of injection pain

    The intensity of pain was graded using a verbal rating scale. 0-None (negative response to questioning) 1. Mild pain (pain reported only in response to questioning without any behavioral signs) 2. Moderate pain (pain reported in response to questioning and accompanied by a behavioral sign or pain reported spontaneously without questioning) 3. Severe pain (strong vocal response or response accompanied by facial grimacing, arm withdrawl or tears)

    Time frame: during the injection of etomidate, expected to be within 1 minutes

Secondary outcomes

  1. hemodynamic parameters after injection of etomidate

    Heart rate and mean arterial pressure will be recorded before induction, before the injection of etomidate, 1 minute and 2 minutes after injection of etomidate

    Time frame: baseline to 2 minutes after injetion of etomidate

07

Study locations

1 of 1 sites recruiting
  • TangDu Hospital,FMMU
    Xi'an, Shanxi, China
    Recruiting
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on May 19, 2014, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT02141737
Lead sponsor
Tang-Du Hospital
Responsible party
Sponsor
First posted
May 19, 2014
Start date
May 2014
Primary completion
Oct 2014 (estimated)
Completion
Oct 2014 (estimated)
Last update
May 19, 2014

Study contacts

Yu Guo
Contact
guoyu986121@163.com
+86-18009200936

Oversight

Data monitoring committee
Yes
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is status unknown, as verified in May 2014. You cannot join it, but the record below documents what was studied.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Studies of the drug tested here: Lidocaine

Start the discussion