Table 2:

Summary of diagnostic features in 19 patients with a diagnosis of SIH

Patient No.Cranial MR ImagingSpinal MR ImagingCSF PressureCT Myelography or RCDural Puncture or Other CausesResponse to EBP (Immediate Relief*)
1−+N−−+
2+−↓−−+
3+−0−−+
4+−0−−+
5+−↓−−+
6+−↓−−+
7+−↓−−+
8+−↓−−+
9++↓−−+
10+−↓−−+
11+−↓−−+
12−+N+−+
13+−↓−−+
14+−↓−−+
15+−0−−+
16+−↓−−+
17++↓+−+
18++↓−−+
19+−↓−−+

  • Note:—SIH indicates spontaneous intracranial hypotension; RC, radionuclide cisternography; EBP, epidural blood patch; N, normal; ↓, low; +, yes; −, no.

  • * Immediate relief means that the patient symptoms resolve due to the pressure effect of EBP. This does not address complete cure of the disease.