Regional cerebral blood flow as predictor of response to occipital nerve block in cluster headache

Table 1 Demographic and main clinical data from CH patients included in behavioural data analyses (N = 17)

Patient	Age	Duration CH	CH side	Type of CH	Preventive medication	Acute medication
1	39	14	Right	Episodic	–	Triptan
						Oxygen
2	29	7	Right	Episodic	Verapamil	Triptan
3^a	46	5	Right	Episodic	–	Triptan
						Oxygen
4	34	17	Left	Episodic		Triptan Oxygen
5	50	10	Right	Chronic	Verapamil	Triptan
					Topiramate	Oxygen
					Tricyclic antidepressants
6	64	42	Right	Episodic	–	Triptan
						Oxygen
7	36	7	Right	Chronic	–	–
8	35	7	Right	Episodic	–	Triptan
						Oxygen
9	32	10	Left	Chronic	–	Triptan
						Oxygen
10	34	11	Right	Episodic	–	Oxygen
11	34	6	Right	Chronic	Verapamil	Triptan
						Oxygen
12	43	26	Right	Episodic	–	Triptan
						Oxygen
13	55	25	Right	Episodic	Melatonin	Oxygen
14	20	1	Left	Chronic	Verapamil	Triptan
						Oxygen
15	28	13	Left	Chronic	Verapamil	Oxygen
16	38	9	Left	Episodic	Verapamil	Triptan
					Prednisolone	Oxygen
					Tricyclic antidepressants
17	47	16	Left	Episodic	Verapamil	Triptan
					Lithium	Oxygen
					Tricyclic antidepressants
18^b	36	7	Right	Chronic	–	–

All patients on preventive medication were on a stable treatment for at least 1 month prior to the first visit and throughout the duration of the study. Participants were instructed to abstain from all medication, apart from oxygen treatment, for at least 12 h prior to each scanning session. Duration CH = years passed since diagnosis of CH to beginning of the study; CH side = laterality of CH attacks; CH=Cluster Headache
^aParticipant excluded from behavioural analyses due to missing data
^bParticipant excluded from behavioural analyses and treatment response analyses due to missing data

ISSN: 1129-2377