0.6 vs. 1.2 mg Atropine Together With Neostigmine 2.5 mg on Heart Rate in

Status Completed

Clinical Trial Summary

Balanced general anesthesia with neuromuscular blocking agents has been widely used for surgery.. At the end of surgery, neostigmine has been given for the reversal of neuromuscular blocking agents with several adverse effects such as bradycardia and profuse secretion. Atropine has been used to prevent those side effects of neostigmine. The routine dosages of the two drugs are 2.5 mg of neostigmine and 1.2 mg of atropine.

Tribuddharat S ey al. (1) has demonstrated that after giving 0.9 mg atropine together with 2.5 mg of neostigmine the mean heart rate during 1-8 minutes after the administration was increase 2-26 beats/min (bpm). At 9 and 10 minutes after administration of the drugs, the mean heart rate were decrease 0.9 and 1.6 bpm In the control group which receiving 1.2 mg of atropine, the mean heart rate during 1-10 minutes after administration was increase 4-32 bpm. However this study did not report the incidence of bradycardia and blood pressure. The mean heart rate prior to atropine and neostigmine was 74.43 + 11.82 bpm.(1)

Salem MG et al. (2) has demonstrated that after receiving 1.2 mg of atropine and 5 mg of neostigmine the mean heart rate during 2-110 minutes was decrease 5-29 bpm with the lowest heart rate at 40 minutes after administration. This study also did not report the blood pressure.

The baseline heart rate (HR) before administration of the reversal was associated with the following heart rate. Heinonen J et al. (3) has demonstrated that 80% of the patients after receiving 0.015 mg/kg of atropine 3 minutes before 0.03 mg of neostigmine for the reversal of pancuronium experienced bradycardia (heart rate < 50 bpm) compared with none in patients receiving alcuronium. However, before administration of atropine and neostigmine, the mean heart rate of patients was significantly lower in the pancuronium group.

Either tachycardia or bradycardia with hypotension causes adverse affect to patient especially in specific group like patient with coronary artery disease or undergoing craniotomy.

The primary objective of our study is to demonstrate the effect on heart rate (HR) and blood pressure of 0.6 mg atropine and 2.5 mg neostigmine for the reversal of muscle relaxant compare to 1.2 mg atropine.

Clinical Trial Description

n/a

Study Design

Allocation: Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Caregiver, Investigator, Outcomes Assessor), Primary Purpose: Treatment

Related Conditions & MeSH terms

Adverse Reaction to Belladonna or Atropine
Bradycardia
Muscle Hypotonia
Neostigmine Adverse Reaction

Clinical Trial Details

NCT number	NCT02186132
Study type	Interventional
Source	Mahidol University
Contact
Status	Completed
Phase	Phase 4
Start date	March 2012
Completion date	February 2013

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Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.

0.6 vs. 1.2 mg Atropine Together With Neostigmine 2.5 mg on Heart Rate in Patient Receiving Muscle Relaxant

Clinical Trial Summary

Clinical Trial Description

Study Design

Related Conditions & MeSH terms