Spontaneous Intracranial Hypotension: Long-Term Follow-Up

Table 3

Patients with probable spontaneous intracranial hypotension (pSIH) but without MR signs for intracranial hypotension.

	N	M/F	Age at onset; (range)	Relapse; ()	Comorbidity; ()		Diagnostic	Work-up				Treatment
							MR brain	MR spine/; CT-myelography		LP (); (cm CSF)	Epidural; blood patch; (mean per; patient)	Other ()
No headache	3	2/1	48 (34-72)	0	Migraine	1	Normal	Normal; Not performed	1; 2	0	1.8	0
Exertional; headache/; mild chronic; headache	4	2/2	38 (33-44)	0	Migraine	1	Normal	Normal; Not performed; Perineural cysts; Disc herniation	1; 3; 1; 2	0	1.3	0
Moderate-; to-severe; headache	6	3/3	42 (22-63)	0	Arterial hypertension; Migraine	1; 1	Normal	Normal; Not performed; Perineural cysts	0; 4; 1	2 (11, 15)	1.5	0
Total	13	7/6	42	0	—		—	—		2	1.5	0

M: male; F: female; LP: lumbar puncture; PGE: pachymeningeal gadolinium enhancement; BS: brain sagging; PE: pituitary engorgement; VDS: venous distension sign; M. diverticula: meningeal diverticula; CSVF: cerebrospinal venous fistula.