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Intraoperative application of indocyanine green and temporary venous occlusion test to assess collateral flow during microvascular decompression for venous-related trigeminal neuralgia: illustrative case

Kentaro Fujimoto, Yosuke Akamatsu, Yasumasa Nishikawa, and Kuniaki Ogasawara

Trigeminal neuralgia (TN) is caused by various types of compression from offending vessels, including arteries, veins, and nonvascular structures 1–4 such as venous angiomas or thickened arachnoids. 5 , 6 Of these, the involvement of the superior petrosal vein (SPV) and its branches in the etiology of TN has been reported in up to 15% of the cases, suggesting that vein-related TN is relatively common. 3 , 7–10 Although transposition of the offending vein is desirable during microvascular decompression (MVD) for vein-related TN, sacrificing the offending

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Radiofrequency thermocoagulation for the treatment of trigeminal neuralgia associated with a focal pontine lesion: illustrative case

Vadym Biloshytsky, Anna Skorokhoda, Inna Buvailo, and Maryna Biloshytska

Trigeminal neuralgia (TN) is a debilitating neurological condition with brief attacks of facial pain restricted to the trigeminal distribution and with an electric shock-like shooting, stabbing, or sharp quality. TN-associated pain is one of the most severe pains known, often referred to as “suicidal,” and is triggered by innocuous stimulation of the face and intraoral mucosa such as touching the face, talking, chewing, drinking, washing the face, shaving, etc. 1 , 2 TN etiology can be classified as classic, secondary, or idiopathic. The classic type

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Feasibility of targeting the cingulate gyrus using high-intensity focused ultrasound on a cadaveric specimen: illustrative case

Francesco Sammartino, James Mossner, Hunter Stecko, Nihaal Reddy, and Brian Dalm

. Monteith S Sheehan J Medel R , et al. Potential intracranial applications of magnetic resonance–guided focused ultrasound surgery: a review . J Neurosurg . 2013 ; 118 ( 2 ): 215 - 221 . 19. Yang JC Ginat DT Dougherty DD Makris N Eskandar EN . Lesion analysis for cingulotomy and limbic leucotomy: comparison and correlation with clinical outcomes . J Neurosurg . 2014 ; 120 ( 1 ): 152 - 163 . 20. Monteith SJ Medel R Kassell NF , et al. Transcranial magnetic resonance–guided focused ultrasound surgery for trigeminal neuralgia: a cadaveric and