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Related Experiment Videos

[Oculocardiac reflex in senile cataract operation].

L Gao1, Z Tao, Q Wang

  • 1Department of Ophthalmology, Yantai Yu Huang Ding Hospital.

[Zhonghua Yan Ke Za Zhi] Chinese Journal of Ophthalmology
|August 19, 1999
PubMed
Summary

Senile cataract surgery frequently triggers the oculocardiac reflex, a significant drop in heart rate. Most surgical steps, except superior rectus fixation, can elicit this reflex, suggesting a need to redefine its diagnostic criteria.

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Area of Science:

  • Ophthalmology
  • Cardiology
  • Anesthesiology

Context:

  • Senile cataract surgery is a common procedure.
  • The oculocardiac reflex (OCR) is a known phenomenon during ocular manipulation.
  • Understanding OCR incidence and triggers is crucial for patient safety.

Purpose:

  • To determine the incidence of the oculocardiac reflex during senile cataract surgery.
  • To identify specific surgical steps that elicit the oculocardiac reflex.
  • To evaluate the current definition of the oculocardiac reflex.

Summary:

  • The oculocardiac reflex occurred in 33.3% of patients undergoing senile cataract surgery.
  • Most surgical maneuvers, including retrobulbar anesthesia, eyeball manipulation, and nucleus delivery, triggered the reflex.

Related Experiment Videos

  • Superior rectus fixation was the only maneuver that did not elicit the reflex.

    • Impact:

    • Cataract extraction can lead to cardiac rate and rhythm abnormalities.
    • The findings suggest the current definition of the oculocardiac reflex may be too conservative.
    • Further research is needed to refine the definition and management of the oculocardiac reflex.