NCT01131741

Comparison of Perfusion Index, T Wave Amplitude, Systolic Blood Pressure and Heart Rate

Comparison of Perfusion Index, T Wave Amplitude, Systolic Blood Pressure and Heart Rate as an Indicator for Detecting Intravascular Injection of Epinephrine Containing Test Dose During Operation in Anesthetized Adults

• Status: Unknown
• Phase: N/A
• Study type: Interventional
• Enrollment: 50 (estimated)
• Sponsor: Seoul National University Hospital · Academic / Other
• Sex: All
• Age: 20 Years – 80 Years
• Healthy volunteers: Not accepted

Summary

The purpose of this study is to determine whether changes in perfusion index can be used for detecting intravascular injection of an epinephrine in anesthetized adults and to compare its reliability with criteria using changes in heart rate, systolic blood pressure or T-wave amplitude.

Detailed description

Intravenous injection of local anesthetics could result in life-threatening complications during general anesthesia. Physicians usually use local anesthetics containing epinephrine to detect intravascular injection. Existing methods including heart rate, systolic blood pressure and T-wave amplitude are unreliable to detect intravascular injection during anesthesia and a method using changes in perfusion index was recently suggested. This study was designed to determine whether perfusion index is a reliable method to detect intravascular injection of epinephrine containing local anesthetics and to compare its reliability with conventional criteria in sevoflurane anesthetized adults. We will randomize patients to 2 groups: a saline group and an epinephrine group. Changes in perfusion index, systolic blood pressure, heart rate and T-wave amplitude will be measured during 5 minutes after injection of 3 mL of saline or 1% lidocaine containing epinephrine. we will determine sensitivity, specificity, positive predictive value and negative predictive value.

Conditions

• Injections, Intravenous

Interventions

Type	Name	Description
DRUG	Epinephrine	This group receives 3 mL of 1% lidocaine containing epinephrine IV during operation.
DRUG	Control	This group receives 3 mL of saline IV during operation.

Timeline

• Start date: 2010-05-01
• Primary completion: 2010-07-01
• Completion: 2011-04-01
• First posted: 2010-05-27
• Last updated: 2011-02-15

Locations

1 site across 1 country: South Korea