Dorsal penile nerve block
Dorsal penile nerve block (DPNB)[1] is a local anesthetic procedure sometimes used in hope of reducing pain in non-therapeutic circumcision of the newborn. In this procedure two injections of local anesthetic (lidocaine} are made near the base of the penis at the ten o'clock and two o'clock positions to block the dorsal nerves.
DPNB was proposed by Kirya & Werthman in 1978.[2] Although Kirya & Wirthman called the procedure "painless", that is an exaggeration. DPNB does block the dorsal nerves, but does not block the ventral nerves, so at best it only reduces the extreme pain of circumcision somewhat. Lander et al. (1997) did a comparison study of EMLA cream topical anesthetic,[3] Dorsal Penile Ring Block, and Ring Block. DPNB was more effective than EMLA cream, but less effective than ring block local anesthesia.[4]
An infant boy who is circumcised with DPNB may expect to experience pain and trauma.
Contents
Video
This video illustrates the use of DPNB.
See also
External links
McPhee AS (18 February 2023). Dorsal Penile Nerve Block
, National Library of Medicine. Retrieved 24 November 2024.
References
- ↑
DPNB
, The Free Dictionary by Farley. Retrieved 24 November 2023. - ↑
Kirya C, Werthman Jr MW. Neonatal circumcision and penile dorsal nerve block—a painless procedure.. J Pediatr. June 1978; 92(6): 998-1000. PMID. DOI. Retrieved 24 November 2023.
- ↑ Anonymous (2005).
Emla cream
, The Free Dictionary by Farley. Retrieved 24 November 2023. - ↑ Lander J, Brady-Frerer B, Metcalfe JB, Nazerali S, Muttit S. Comparison of ring block, dorsal penile nerve block, and topical anesthesia for neonatal circumcision. JAMA. 24 December 1997; 278(24): 2157-64. PMID. Retrieved 24 November 2023.
