Determination of the Optimal Dose of Ephedrine in Intraoperative Arterial

Status Completed

Clinical Trial Summary

The incidence of arterial hypotension under general anesthesia using sevoflurane is particularly high in newborns and infants up to 6 months of age. A decrease of 20% of the initial mean blood pressure (mBP) is the definition of significant arterial hypotension in adults and children. In adults, intraoperative arterial hypotension is associated with an increase of intraoperative mortality and a certain neurological morbidity. In infants under 6 months of age, neurological disorders have been reported following general anesthesia. Neurotoxicity of hypnotics is often incriminated as should be the episodes of arterial hypotension. Current management of hypotension uses vascular filling with crystalloids and vasopressive amines in second intention. Dopamine is the most frequently used amine. Ephedrine can also be used. Ephedrine is particularly interesting because of its action on both α and β receptors and its mode of administration: one dose and peripheral access. Only one study is available in children from birth to adulthood; it demonstrates a lower hemodynamic response in infants than in adults, when administered a low dose of Ephedrine (0.1 to 0.2 mg/kg). A recent retrospective cohort suggests an under efficacy of low doses and the use of higher doses than those recommended. The primary objective is to determine the optimal dose of ephedrine (dose of ephedrine associated with a difference of proportion of newborns/infants in therapeutic success of 55%) compare to the reference dose of 0.1mg/kg as a first line treatment of intraoperative arterial hypotension. Secondary objectives: - Return to a mBP superior to 38mmHg post Ephedrine administration. - To assess occurrence of hypoxemic events during anesthesia. - To assess tolerance of ephedrine. One hundred and twenty newborn and infants up to 6 months of age will be recruited in 3 sites of the Rhone Alpes Auvergne area over 24 months.

Clinical Trial Description

n/a

Study Design

Related Conditions & MeSH terms

Hypotension
Infant, Newborn
Intraoperative Arterial Hypotension

Clinical Trial Details

NCT number	NCT02384876
Study type	Interventional
Source	Hospices Civils de Lyon
Contact
Status	Completed
Phase	Phase 2
Start date	June 2015
Completion date	September 5, 2020

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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.

Determination of the Optimal Dose of Ephedrine in Intraoperative Arterial Hypotension of Newborns and Infants up to 6 Months of Age. — EPHEDRINE

Clinical Trial Summary

Clinical Trial Description

Study Design

Related Conditions & MeSH terms