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Related Experiment Videos

Human chorioretinal biopsy under controlled systemic hypotensive anaesthesia

L J Constable, G H Chester, R Horne

    The British Journal of Ophthalmology
    |August 1, 1980
    PubMed
    Summary

    This study presents a simplified retinal and choroidal biopsy technique. Controlled hypotension minimizes bleeding and prevents vitreous loss during ocular biopsies.

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    BMC public health·2019

    Area of Science:

    • Ophthalmology
    • Surgical Techniques
    • Ocular Pathology

    Background:

    • Retinal and choroidal biopsies are crucial for diagnosing ocular diseases.
    • Existing biopsy techniques can be complicated and prone to complications like bleeding and vitreous loss.

    Observation:

    • A simplified biopsy technique was applied to five human volunteers.
    • The procedure was performed before eye enucleation for malignant melanoma or during glaucoma surgery.

    Findings:

    • Employing controlled systemic hypotension with mannitol and sodium nitroprusside in three cases resulted in minimal bleeding and no vitreous loss.
    • In two cases without hypotension, significant bleeding occurred, though vitreous loss was still avoided.

    Implications:

    • This simplified technique, particularly with controlled hypotension, offers a safer and more effective method for retinal and choroidal biopsies.
    • Improved biopsy methods can enhance diagnostic accuracy for various intraocular conditions.
    • Further research may refine this technique for broader clinical application in ophthalmology.

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