MedTrace Logo

Autonomic Nervous System Activity and Oculocardiac Reflex.

NCT01714362 · Status: COMPLETED · Type: OBSERVATIONAL · Enrollment: 52

Last updated 2022-04-27

No results posted yet for this study

Summary

Pulling the eyeball during ophthalmic surgery provokes decrease in heart rate. This phenomenon is called oculocardiac reflex. In some patients asystole may occur. Other cardiac features of this reflex include hypotension, dysrhythmias, atrioventricular block. These cardiovascular disturbances may lead to decreased perfusion and ischemia of vital organs. Patients with existing cardiovascular disease are in risk of complications. Cardiovascular system is mainly innervated with autonomic nervous system (ANS). Sympathetic/parasympathetic activity may be determined by Heart Rate Variability (HRV). HRV analysis based on short 5 minutes electrocardiography has been found useful for prediction of hypotension and bradycardia during induction of general anaesthesia and during spinal block. The aim of this study is to verify whether it is possible to predict oculocardiac reflex with the use of HRV analysis for ANS activity assessment, measured prior to the ophthalmic surgery.

Conditions

  • Bradycardia During Pulling of Eyeball

Sponsors & Collaborators

  • Medical University of Gdansk

    lead OTHER

Principal Investigators

  • Magdalena A Wujtewicz, MD PhD · Department of Ophthalmology, Mediacal University of Gdansk, Gdansk, Poland

Eligibility

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

Timeline & Regulatory

Start
2009-10-31
Primary Completion
2018-10-31
Completion
2018-10-31

Countries

  • Poland

Study Locations

More Related Trials

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 NCT01714362 on ClinicalTrials.gov