REFERENCES
1. Gielen M. Post dural puncture headache (PDPH): a review. Regional Anesthesia 1989; 14(3): 101-6.
2. Neal JM. Management of post dural puncture headache. Anesthesiology Clinics of North America 1992; 10(1): 163-78.
3. McGruder JM, Cooke JE, Conroy JM, Baker JD. Headache after lumbar puncture: review of the epidural blood patch. Southern Medical Journal 1998; 81(10): 1249-52.
4. Evans, RW. Complications of lumbar puncture. Neurologic Clinics of North America 1998; 16(1): 83-105.
5. Norris MC, Leighton BL, DeSimone CA, Needle bevel direction and headache after inadvertent dural puncture. Anesthesiology 1989; 70(5):729-31.
6. Huffnagle SL, Norris MC, Arkoosh VA, Huffnagle HJ, Ferouz F, Boxer L, Leighton BL. The influence of epidural needle bevel orientation on spread of sensory blockade in the laboring parturient. Anesthesia and Analgesia 1998;87(2):326-30.
7. Duffy BL. "Don't turn the needle!". Anaesth Intensive Care 1993;21(3):328-30
8. Meiklejohn BH. The effect of rotation of an epidural needle. An in vitro study. Anaesthesia 1987;42(11):1180-2.
9. Cohen S, Amar D, Pantuck EJ, Singer N, Divon M. Decreased incidence of headache after accidental dural puncture in caesarean delivery patients receiving continuous postoperative intrathecal analgesia. Acta Anaesthesiol Scand 1994;38(7):716-8.
10. Dennehy KC, Rosaeg OP. Intrathecal catheter insertion during labour reduces the risk of post-dural puncture headache. Can J Anaesth 1998;45(1):42-5.
11. Norris MC, Leighton BL. Continuous spinal anesthesia after unintentional dural puncture in parturients. Regional Anesthesia 1990;15(6):285-7.
12. Liu N, Montefiore A, Kermarec N, Rauss A, Bonnet F. Prolonged placement of spinal catheters does not prevent postdural puncture headache. Regional Anesthesia 1993;18(2):110-3.
13. Dunbar SA and Katz NP. Failure of delayed epidural blood patch to correct persistent cranial nerve palsies [case report]. Anesthesia and Analgesia 1994;79: 806-7.