• Pain physician · Sep 2016

    Randomized Controlled Trial

    Calcitonin as an Additive to Local Anesthetic and Steroid Injection Using a Modified Coronoid Approach in Trigeminal Neuralgia.

    • Nabil Ail Elsheikh and Yasser M Amr.
    • Departments of Anesthesiology and Surgical Intensive Care, Faculty of Medicine, Tanta University, Egypt.
    • Pain Physician. 2016 Sep 1; 19 (7): 457-64.

    BackgroundPharmacotherapy is the main treatment for management of trigeminal neuralgia. However, many patients become refractory to drugs.ObjectivesThe present study aimed to evaluate the effect of adding calcitonin to local anesthetic and methylprednisolone using a modified coronoid approach in management of trigeminal neuralgia pain involving the mandibular and/or maxillary branches.Study DesignRandomized double blind clinical trial.SettingHospital outpatient setting.MethodsThirty-three patients received maxillary and mandibular blocks by a modified coronoid approach. Patients were allocated into 2 groups. Group 1 received a block with 3 mL of lidocaine 0.5% plus 40 mg of methylprednisolone and another syringe contained 1 mL of 0.9% saline. Group 2 received a block with 3 mL of lidocaine 0.5% plus 40 mg of methylprednisolone and another syringe contained 50 international units of calcitonin. Pain was evaluated by visual analog scale (VAS) before the block (basal), at 2 weeks, one month after the procedure, and monthly for one year. Duration of the effective pain relief of the first block (VAS = 3) was reported. Repeated blockade was allowed for any patient reporting a VAS > 30 mm during one year of follow-up and the number of blocks were reported. Adverse effects were also reported.ResultsA significantly longer duration of effective pain relief was noticed in group 2 compared with group 1 (P < 0.0004) while the duration of effective pain relief of the second block in group 1 was 28.5 ± 8.9 weeks. Four patients did not need repeated blocks in group 1 versus 15 in group 2. Six patients received 2 blocks versus 2 patients in each group, respectively. Moreover, 6 patients needed 3 blocks in group1 versus none in group 2. No serious adverse events were reported during or after the interventional procedure. VAS was comparable in both groups (P > 0.05).LimitationsSmall sample size.ConclusionCalcitonin may be a useful additive to local anesthetic and steroid in management of trigeminal neuralgia. Also, a modified coronoid approach for maxillary and mandibular nerve is simple, free of radiation, safe, and may be an effective percutaneous procedure in trigeminal neuralgia.Key WordsCalcitonine, modifed, coronoid approach, trigeminal neuralgia.

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