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02 June 2021: Articles

Prophylactic Intra-Arterial Injection of Lidocaine Prevents Trigeminocardiac Reflex During Endovascular Embolization for Dural Arteriovenous Fistula: A Report of 2 Cases

Unusual clinical course, Unusual or unexpected effect of treatment

Zhaochu Sun C , Hua Lu B , Youli Hu A*

DOI: 10.12659/AJCR.930837

Am J Case Rep 2021; 22:e930837

Figure 3. Schematic illustration of the autonomic neural pathways and effectors activated as a consequence of trigeminal nerve stimulation trigged either by peripheral signals from ophthalmic, maxillary, and mandibular branches or central cerebral vascular stimulus (figure modified from Buchholz’s publication [18]). The central TCR, which was stimulated by DMSO/ Onyx injection in the central vessel, induces a strong depressive response by a reciprocal activation of the parasympathetic system and an inhibition of the sympathetic system (red symbols). The peripheral TCR, which was stimulated by DMSO/Onyx injection in the peripheral vessels, involves simultaneous co-activation of both autonomic limbs (blue symbols).

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American Journal of Case Reports eISSN: 1941-5923
American Journal of Case Reports eISSN: 1941-5923