Effect of Phenylephrine During Shoulder Arthroscopic Surgery

October 30, 2016 updated by: Ki Hwa Lee, Inje University

Effect of Phenylephrine Infusion for Preventing Hypotension During Shoulder Arthroscopic Surgery in the Beach Chair Position

The purpose of this study is to determine whether phenylephrine infusion are effective in the prevention of hypotension after changing position to beach chair position during general anesthesia for shoulder arthroscopic surgery.

Investigators hypothesized that by increasing arterial blood pressure with phenylephrine infusion, incidence of hypotension would be decreased.

Study Overview

Status

Completed

Intervention / Treatment

Detailed Description

The beach chair position is associated with hypotension, risk of cerebral hypoperfusion, and cerebral injury. Sixty-six patients undergoing elective shoulder arthroscopic surgery are randomized to receive either phenylephrine low dose (0.5 mcg/kg/hr), phenylephrine high dose (1.0 mcg/kg/min), or normal saline 5 minute before being placed in the beach chair position.

General anesthesia is induced with propofol, remifentanil and rocuronium (0.6 mg/kg) and the trachea intubated. Anesthesia is maintained with sevoflurane and remifentanil targeting for a BIS value 40-60. After hemodynamic stabilization, patients received on infusion of either phenylephrine high dose (1.0 mcg/kg/min), phenylephrine low dose (0.5 mcg/kg/hr) or normal saline 5 minute before being placed in the beach chair position. Following 15 minutes of infusion study drugs, measurements of mean arterial blood pressure and cardiac function (stroke volume variation, stroke volume index, and cardiac index) using Vigileo/Flotrac system were made.

Study Type

Interventional

Enrollment (Actual)

66

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

      • Busan, Korea, Republic of, 612-896
        • Haeundae paik hospital, inje university

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

20 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • shoulder arthroscopic surgery undergone beach chair position

Exclusion Criteria:

  • History of cerebrovascular event,
  • significant cardiac disease (New York Heart Association symptoms class ≥ 3)
  • uncontrolled hypertensive patients.
  • American society of anesthesiologist class 4,5

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Prevention
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Quadruple

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Low dose phenylephrine
phenylephrine 0.5 mcg/kg/min
Patients is received phenylephrine 1.0 mcg/kg/min or 0.5 mcg/kg/min for 5 minutes before being placed in the beach chair position.
Other Names:
  • Phenylephrine hydrochloride
Experimental: High dose phenylephrine
phenylephrine 1.0 mcg/kg/min .
Patients is received phenylephrine 1.0 mcg/kg/min or 0.5 mcg/kg/min for 5 minutes before being placed in the beach chair position.
Other Names:
  • Phenylephrine hydrochloride
No Intervention: Normal saline
normal saline for 5minutes

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Incidence of hypotension
Time Frame: 30 minutes
After being beach chair position during shoulder arthroscopic surgery. We measure the incidence of hypotension with invasive blood pressure (Arterial line catheterization).
30 minutes

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Investigators

  • Principal Investigator: Ki Hwa Lee, M.D, Haeundae paik hospital, inje university

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

October 1, 2015

Primary Completion (Actual)

September 1, 2016

Study Completion (Actual)

September 1, 2016

Study Registration Dates

First Submitted

October 19, 2015

First Submitted That Met QC Criteria

October 22, 2015

First Posted (Estimate)

October 23, 2015

Study Record Updates

Last Update Posted (Estimate)

November 1, 2016

Last Update Submitted That Met QC Criteria

October 30, 2016

Last Verified

October 1, 2016

More Information

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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