Trigeminal autonomic cephalalgias and intranasal lidocaine: a symptomatic management option

Introduction Trigeminal Autonomic Cephalalgias (TAC) are excruciating headaches with limited treatment options. In addition to drug therapy, there some studies regarding nerve blocking and stimulation acceptable results. We had a sequence of three difficult treat patients because the disease or associated condition that made us try something not so usual. Lidocaine, by voltage-gated Na+ channels can reduce excitability neurons thus prevent sensation pain, which relieve neuropathic hyperalgesia, complex regional pain syndrome. Objective Observe if intranasal lidocaine could be effective safe for TAC. Methods Results The signed consent permission form. (1) 29-year-old pregnant woman history about 3 years. Pain was localized in right periorbital region severity 7 out 10. Attacks ipsilateral tearing 5–8 times day - Paroxistic Hemicrania. She diagnosed prolactinoma two years ago. management tumor resolved pain. With pregnancy, Bromocriptine has been stopped. So, 1 month later, returned. As indomethacin used this situation, we opted prescribe lidocaine. After first dose, patient control It prescribed 2%, 2mL (IN) until four day. (2) 56-year-old man 4 months. 10 conjunctival injection lasting 30-90 seconds occurring as single stabs 30-50 Short-lasting unilateral neuralgiform headache attacks conjunctival... (Too see complet abstract, please, check PDF,)