What question did this study set out to answer?

To evaluate whether a 40 percent partial hypoglossal nerve transfer successfully restores orbicularis oculi muscle function following prolonged periods of facial denervation.

January 1, 2000Journal of Reconstructive Microsurgery

Efficacy of the "Baby-Sitter" Procedure After Prolonged Denervation

View Full Paper

Ask AI

Bookmark

Authors

BMBerkan Mersaİstanbul Nişantaşı Üniversitesi DTDavid A. TiangcoDominion University College JTJulia K. TerzisCity University of New York

Discussion

Member takes

Implication

Animal study demonstrates that a 40 percent hypoglossal nerve transfer restores eyelid closure in rats after up to 12 weeks of denervation, suggesting viability despite delayed repair.

Key Points

To evaluate whether a 40 percent partial hypoglossal nerve transfer successfully restores orbicularis oculi muscle function following prolonged periods of facial denervation.
Divided 20 Sprague-Dawley rats into four groups: unrepaired transection controls (Group A) and intervention groups denervated for 4, 8, or 12 weeks (Groups B, C, and D).
Performed a second-stage 40 percent hypoglossal neurectomy and bridged it to the main zygomatic branch of the facial nerve using a saphenous nerve autograft.
Evaluated recovery through behavioral blink reflex analysis, electrophysiology, and quantification of axons and motor end-plates.
Intervention groups denervated for 4, 8, and 12 weeks demonstrated superior blink reflex, electrophysiological responses, and axon and motor end-plate counts compared to unrepaired controls.
Functional recovery and structural metrics did not differ significantly across the 4-, 8-, and 12-week denervation cohorts (p > 0.05).
Despite reductions in zygomatic axon counts and motor end-plates after 12 weeks of denervation, target reinnervation was sufficient to restore eyelid closure in all repaired groups.

Cite This Study

Mersa et al. (2000) studied this question.

synapsesocial.com/papers/6a11cf24a72c42a985563cda https://doi.org/10.1055/s-2000-7538

View Full Paper

Ask AI

Bookmark

Implication

Animal study demonstrates that a 40 percent hypoglossal nerve transfer restores eyelid closure in rats after up to 12 weeks of denervation, suggesting viability despite delayed repair.

Efficacy of the "Baby-Sitter" Procedure After Prolonged Denervation

Discussion

Member takes

Implication

Key Points

Cite This Study

Efficacy of the "Baby-Sitter" Procedure After Prolonged Denervation

Discussion

Member takes

Implication

Key Points

Cite This Study

Also Consider

Also Consider