Contraindications to AEBP were determined by interrogation, examination, and blood-sample analysis (blood cell count, prothrombin time, partial thromboplastin time,).
The results of the AEBP treatment on clinical signs were then divided into relief of symptom using numerical rating scale for pain evaluation (Table-3).
Complete relief was defined as disappearance of headache after the AEBP when patient had pain rating at 0 according to numerical rating scale.
Age and sex of the patient, circumstances of the dural puncture, relief from headache using numerical rating scale for evaluation of pain, complications of AEBP i.e.
A total 30 AEBP were performed with predominantly female patients (90% versus 10%) with a mean age of 27.8 years.
Mean time of performing AEBP was 3.83 days after lumbar puncture.
AEBP was found to be effective in relief of PDPH in majority (96%) with only one of the patient requiring second blood patch in these patients.
Abouleish16 reported complete relief of headache in 89% (105/118) of young patients in which AEBP was performed, he used less than 15 ml of blood patch while we used up to 20 ml of blood in our study.
Backache after AEBP is described with 77% reported by Tisseront et al and 18% by Abouleish and 23% by us.