Minimal Effective Concentration of Lidocaine in Propofol Lidocaine Mixture for Relief of Pain on Propofol Injection

Imam Abdulrahman Bin Faisal University

Status and phase: Unknown; Phase 4

Conditions: Pain

Treatments: Drug: lidocaine with propofol

Study type: Interventional

Funder types: Other

Identifiers

NCT05165303

IRB-2020-331-KFUH

Details and patient eligibility

About

The research will be carried out in order to determine the optimal lidocaine concentration in propofol lidocaine mixture to prevent pain on propofol injection during induction of general anesthesia using a modified Dixon's up-and-down method. We hypothesized that focusing on lidocaine concentration and not dose could be more convenient and valuable to alleviate pain with propofol injection.

Patients & methods include assessment of severity of pain on propofol injection using nine concentrations of lidocaine in lidocaine propofol mixture in ASA I&II patients aged 16-60 years with excluxion of patients with history of drug allergy, hepatic or renal impairment, cardiac problems, neurologic deficits or psychiatric disorders.

Demographic data, type and duration of surgery, Time for unconsciousness, volume of propofol-lidocaine mixture used, pain scale during injection, increase in heart rate and/or hand or forearm withdrawal during injection will be recorded and patient satisfaction (will be assessed in the recovery room after regaining consciousness),

Full description

The research will be carried out in order to determine the optimal lidocaine concentration in propofol lidocaine mixture to prevent pain on propofol injection during induction of general anesthesia using a modified Dixon's up-and-down method. We hypothesized that focusing on lidocaine concentration and not dose could be more convenient and valuable to alleviate pain with propofol injection.

Patients & methods include assessment of severity of pain on propofol injection using nine concentrations of lidocaine in in lidocaine propofol mixture in ASA I&II patients aged 18-60 years with exclusion of patients with history of drug allergy, hepatic or renal impairment, cardiac problems, neurologic deficits or psychiatric disorders.

Demographic data, type and duration of surgery, Time for unconsciousness, volume of propofol-lidocaine mixture used, pain scale during injection, increase in heart rate and/or hand or forearm withdrawal during injection, patient satisfaction (will be assessed in the recovery room after regaining consciousness),

Enrollment: 30 estimated patients

Sex: All

Ages: 18 to 60 years old

Volunteers: Accepts Healthy Volunteers

Inclusion criteria

• ASA I &II
• Age 18 - 60 years

Exclusion criteria

• study drug allergy
• hepatic or renal impairment
• cardiac problem
• neurologic deficits
• psychiatric disorders

Trial design

Primary purpose: Treatment

Allocation: N/A

Interventional model: Single Group Assignment

Masking: None (Open label)

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30 participants in 1 patient group

lidocaine with propofol

Experimental group

Treatment:

Drug: lidocaine with propofol