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Phenylephrine Versus Norepinephrine in Ophthalmic Surgery

NCT01609491 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 60

Last updated 2024-04-18

No results posted yet for this study

Summary

In ophthalmic surgery the specific anaesthesiological challenges necessitate the administration of a combination of relatively high doses of hypnotics and analgetics. In order to preserve adequate organ perfusion, there is often a need to administer pharmacological agents for haemodynamic support. Depending on the experience of the anaesthetist a continuous infusion of phenylephrine or norepinephrine is used. It is currently not known which of these agents has the most favorable haemodynamical profile.

Haemodynamic parameters (continuous blood pressure, cardiac index, stroke volume and systemic resistance), peripheral tissue oxygenation and cerebral tissue oxygenation will be monitored noninvasively using the Nexfin® , Inspectra®, and Foresight® and O2C® monitoring devices.

Conditions

  • Bloodpressure

Interventions

DRUG

phenylephrine

If the mean arterial pressure drops below 20% of the baseline value and/or below 90 mmHg, a syringe pump with phenylephrine or norepinephrine (depending on randomisation) will be started. The anaesthetist will be blinded for the type of vasopressor. Concentrations phenylephrine (20 µg /ml) of Norepinephrine (10 µg/ml) will be used in the syringes

DRUG

norepinephrine

If the mean arterial pressure drops below 20% of the baseline value and/or below 90 mmHg, a syringe pump with norepinephrine (depending on randomisation) will be started. The anaesthetist will be blinded for the type of vasopressor. Concentrations Norepinephrine (10 µg/ml) will be used in the syringes

Sponsors & Collaborators

  • University Medical Center Groningen

    lead OTHER

Principal Investigators

  • Alain Kalmar, Dr · Anesthesiology

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Model
SINGLE_GROUP

Eligibility

Min Age
18 Years
Max Age
55 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2012-01-31
Primary Completion
2012-06-30
Completion
2012-12-31

Countries

  • Netherlands

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT01609491 on ClinicalTrials.gov