Ophthalmic Artery Resistance Index After Peribulbar Block in the Presence of Epinephrine

Evaluate ophthalmic artery flow by echo-Doppler before and after peribulbar block with lidocaine in presence or absence of epinephrine.

Completed

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Key information

Conditions

Ophthalmic Artery Peribulbar Block

Age range

30 year–85 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Universidade Federal de Minas Gerais, Faculdade de Medicina, Departamento de Cirurgia.

Belo Horizonte, Minas Gerais, 30130100, Brazil

About this study

There are controversies regarding the ophthalmic artery (OA) flow after peribulbar block with the addition of epinephrine. Therefore, we aimed to evaluate OA flow by echo-Doppler before and after peribulbar block with lidocaine in presence or absence of epinephrine.

Fifty-six patients that were eligible for cataract phacoemulsification surgery were selected. Patients were divided into two groups: group 1 - Peribulbar block with lidocaine and 1/200.000 epinephrine; group 2 - Peribulbar block with lidocaine in the absence of epinephrine. The resistance index (RI) of OA was evaluated using echo-Doppler before and 10 min after the peribulbar block.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

American Society of Anesthesiologists (ASA) I, II or III physical status classification
Cataract surgery

Exclusion criteria

glaucoma
diabetic retinopathy
previous eye surgery in the same eye
ocular trauma
allergic to any protocol medication
uncooperative patients or cognitive difficulties
axial eye diameter of less than 21.0 mm or greater than 25.5 mm.

Treatment and study plan

Epinephrine

Drug

Primary outcomes

Artery resistance index of ophthalmic artery

Time frame: Change on resistance index 10 minutes after peribulbar anesthesia

The resistance index (RI) of OA was evaluated using echo-Doppler before and 10 minutes after the peribulbar block.

Sponsors and collaborators

Lead sponsor

Federal University of Minas Gerais

Other

Registry information

Important dates

Study start: 2013
Primary completion: 2014
Study completion: 2014
First posted: Nov 6, 2019
Registry last updated: Nov 6, 2019

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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Completed