[{"arm_notes": "nan", "treatment_id": null, "treatment_name": "\"Sham\"-block with Placebo (Isotone NaCl)", "treatment_type": "Procedure", "pharmacological_treatment": "Placebo"}, {"arm_notes": "nan", "treatment_id": null, "treatment_name": "Sphenopalatine Ganglion Block with Local Anesthetic", "treatment_type": "Procedure", "pharmacological_treatment": "TODO"}, {"arm_notes": "nan", "treatment_id": null, "treatment_name": "Sphenopalatine Ganglion Block with Placebo (Isotone NaCl)", "treatment_type": "Procedure", "pharmacological_treatment": "Placebo"}]

[{"arm_notes": "", "treatment_id": 1599, "treatment_name": "Lidocaine+ropivacaine", "treatment_type": "Central nervous system agents", "pharmacological_treatment": "Pharmacological treatment"}, {"arm_notes": "", "treatment_id": 2187, "treatment_name": "Placebo", "treatment_type": "Placebo", "pharmacological_treatment": "Placebo"}]