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ARTICLE |

Comparison of Ring Block, Dorsal Penile Nerve Block, and Topical Anesthesia for Neonatal Circumcision: Title and subTitle BreakA Randomized Controlled Trial FREE

Janice Lander, PhD; Barbara Brady-Fryer, MN; James B. Metcalfe, MD, FRCSC; Shemin Nazarali, MPharm; Sarah Muttitt, MD, FRCPC
[+] Author Affiliations

Reprints: Janice Lander, PhD, Clinical Sciences, University of Alberta, Edmonton, Alberta, Canada T6G 2G3 (e-mail: janice.lander@ualberta.ca).


JAMA. 1997;278(24):2157-2162. doi:10.1001/jama.1997.03550240047032
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Context.  —Beliefs about the safety and effectiveness of current anesthetics have resulted in many newborns being circumcised without the benefit of anesthesia.

Objective.  —To compare ring block, dorsal penile nerve block, a topical eutectic mixture of local anesthetics (EMLA), and topical placebo when used for neonatal circumcision. The placebo represented current practice, with no anesthetic for neonatal circumcision.

Design.  —A randomized controlled trial.

Setting.  —Antenatal units in 2 tertiary care hospitals in Edmonton, Alberta.

Participants.  —A consecutive sample of 52 healthy, full-term, male newborns, aged 1 to 3 days.

Interventions.  —Physiological and behavioral monitoring occurred in a series of trials: baseline, drug application, preparation, circumcision, and postcircumcision. Surgical procedures defined the following 4 stages of the circumcision: cleansing, separation, clamp on, and clamp off. Methemoglobin level was assessed 6 hours after surgery.

Main Outcome Measures.  —Heart rate, cry, and methemoglobin level.

Results.  —Newborns in the untreated placebo group exhibited homogeneous responses that consisted of sustained elevation of heart rate and high-pitched cry throughout the circumcision and following. Two newborns in the placebo group became ill following circumcision (choking and apnea). The 3 treatment groups all had significantly less crying and lower heart rates during and following circumcision compared with the untreated group. The ring block was equally effective through all stages of the circumcision, whereas the dorsal penile nerve block and EMLA were not effective during foreskin separation and incision. Methemoglobin levels were highest in the EMLA group, although no newborn required treatment.

Conclusions.  —The most effective anesthetic is the ring block; EMLA is the least effective. It is our recommendation that an anesthetic should be administered to newborns prior to undergoing circumcision.

REFERENCES

Wiswell T, Roscelli J.  Corroborative evidence for the decreased incidence of urinary tract infections in circumcised male infants . Pediatrics . 1986;;78:96-99.
Moses S, Bradley J, Nagelkerke N, Ronald A, Ndinya-Achola J, Plummer F.  Geographical patterns of male circumcision practices in Africa: association with HIV seroprevalence . Int J Epidemiol . 1990;;19:693-697.
Maden C, Sherman K, Beckmann A, et al.  History of circumcision, medical conditions, and sexual activity and risk of penile cancer . J Natl Cancer Inst . 1993;;85:19-24.
Poland R.  The question of routine neonatal circumcision . N Engl J Med . 1990;;322:1312-1315.
Wallerstein E.  Circumcision: the uniquely American medical enigma . Urol Clin North Am . 1985;;12:123-132.
Rabinowitz R, Hulbert W.  Newborn circumcision should not be performed without anesthesia . Birth . 1995;;22:45-46.
Wellington N, Rieder M.  Attitudes and practices regarding analgesia for newborn circumcision . Pediatrics . 1993;;92:541-543.
Toffler W, Sinclair A, White K.  Dorsal penile nerve block during newborn circumcision: underutilization of a proven technique? J Am Board Fam Pract . 1990;;3:171-174.
Kirya C, Werthmann M.  Neonatal circumcision and penile dorsal nerve block: a painless procedure . J Pediatr . 1978;;92:998-1000.
Holve RL, Bromberger PJ, Groveman HD, Klauber MR, Dixon SD, Snyder JM.  Regional anesthesia during newborn circumcision . Clin Pediatr . 1983;;22:813-818.
Stang H, Gunnar M, Snellman L, Condon L, Kestenbaum R.  Local anesthesia for neonatal circumcision: effects on distress and cortisol response . JAMA . 1988;;259:1507-1511.
Fontaine P, Dittberner D, Scheltema K.  The safety of dorsal penile nerve block for neonatal circumcision . J Fam Pract . 1994;;39:243-248.
Snellman L, Stang H.  Prospective evaluation of complications of dorsal penile nerve block for neonatal circumcision . Pediatrics . 1995;;95:705-708.
Benini F, Johnston C, Faucher D, Aranda J.  Topical anesthesia during circumcision in newborn infants . JAMA . 1993;;270:850-853.
Taddio A, Stevens B, Craig K, et al.  Efficacy and safety of lidocaine-prilocaine cream for pain during circumcision . N Engl J Med . 1997;;336:1197-1201.
Broadman L, Hannallah R, Belman B, Elder P, Ruttimann U, Epstein B.  Post-circumcision analgesia: a prospective evaluation of subcutaneous ring block of the penis . Aesthesiology . 1987;;67:399-402.
Harper V, Rutter N.  Development of emotional sweating in the newborn infant . Arch Dis Child . 1982;;57:691-695.
Owens M, Todt E.  Pain in infancy: neonatal reaction to heel lance . Pain . 1984;;20:77-86.
Rawlings D, Miller P, Engel R.  The effect of circumcision on transcutaneous Po2 in term infants . AJDC . 1980;;134:676-678.
Grunau R, Johnston C, Craig K.  Neonatal facial and cry responses to invasive and non-invasive procedures . Pain . 1990;;42:295-305.
Gunnar M, Malone S, Vance G, Fisch R.  Coping with aversive stimulation in the neonatal period: quiet sleep and plasma cortisol levels during recovery from circumcision . Child Dev . 1985;;56:824-834.
Lander J, Hodgins M, Nazarali S, McTavish J, Ouellette J, Friesen E.  Determinants of success and failure of EMLA . Pain . 1996;;64:89-97.
Streiner D, Norman G. Health Measurement Scales . 2nd ed. Oxford, England: Oxford University Press; 1995;.
Williamson P, Williamson M.  Physiologic stress reduction by a local anesthetic during newborn circumcision . Pediatrics . 1983;;71:36-40.
NeterJ, Wasserman W, Kutner M. Applied Linear Regression Models . 3rd ed. Homewood, Ill: Irwin Inc; 1983;.
Freedman B.  Equipoise and the ethics of clinical research . N Engl J Med . 1987;;317:141-145.
Stav A, Gur L, Gorelik U, Ovadia L, Isaakovich B, Sternberg A.  Modification of the penile block . World J Urol . 1995;;13:251-253.
Schoen E, Fischell A.  Pain in neonatal circumcision . Clin Pediatr . 1991;;30:429-432.

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Country-Specific Mortality and Growth Failure in Infancy and Yound Children and Association With Material Stature

Use interactive graphics and maps to view and sort country-specific infant and early dhildhood mortality and growth failure data and their association with maternal

Wiswell T, Roscelli J.  Corroborative evidence for the decreased incidence of urinary tract infections in circumcised male infants . Pediatrics . 1986;;78:96-99.
Moses S, Bradley J, Nagelkerke N, Ronald A, Ndinya-Achola J, Plummer F.  Geographical patterns of male circumcision practices in Africa: association with HIV seroprevalence . Int J Epidemiol . 1990;;19:693-697.
Maden C, Sherman K, Beckmann A, et al.  History of circumcision, medical conditions, and sexual activity and risk of penile cancer . J Natl Cancer Inst . 1993;;85:19-24.
Poland R.  The question of routine neonatal circumcision . N Engl J Med . 1990;;322:1312-1315.
Wallerstein E.  Circumcision: the uniquely American medical enigma . Urol Clin North Am . 1985;;12:123-132.
Rabinowitz R, Hulbert W.  Newborn circumcision should not be performed without anesthesia . Birth . 1995;;22:45-46.
Wellington N, Rieder M.  Attitudes and practices regarding analgesia for newborn circumcision . Pediatrics . 1993;;92:541-543.
Toffler W, Sinclair A, White K.  Dorsal penile nerve block during newborn circumcision: underutilization of a proven technique? J Am Board Fam Pract . 1990;;3:171-174.
Kirya C, Werthmann M.  Neonatal circumcision and penile dorsal nerve block: a painless procedure . J Pediatr . 1978;;92:998-1000.
Holve RL, Bromberger PJ, Groveman HD, Klauber MR, Dixon SD, Snyder JM.  Regional anesthesia during newborn circumcision . Clin Pediatr . 1983;;22:813-818.
Stang H, Gunnar M, Snellman L, Condon L, Kestenbaum R.  Local anesthesia for neonatal circumcision: effects on distress and cortisol response . JAMA . 1988;;259:1507-1511.
Fontaine P, Dittberner D, Scheltema K.  The safety of dorsal penile nerve block for neonatal circumcision . J Fam Pract . 1994;;39:243-248.
Snellman L, Stang H.  Prospective evaluation of complications of dorsal penile nerve block for neonatal circumcision . Pediatrics . 1995;;95:705-708.
Benini F, Johnston C, Faucher D, Aranda J.  Topical anesthesia during circumcision in newborn infants . JAMA . 1993;;270:850-853.
Taddio A, Stevens B, Craig K, et al.  Efficacy and safety of lidocaine-prilocaine cream for pain during circumcision . N Engl J Med . 1997;;336:1197-1201.
Broadman L, Hannallah R, Belman B, Elder P, Ruttimann U, Epstein B.  Post-circumcision analgesia: a prospective evaluation of subcutaneous ring block of the penis . Aesthesiology . 1987;;67:399-402.
Harper V, Rutter N.  Development of emotional sweating in the newborn infant . Arch Dis Child . 1982;;57:691-695.
Owens M, Todt E.  Pain in infancy: neonatal reaction to heel lance . Pain . 1984;;20:77-86.
Rawlings D, Miller P, Engel R.  The effect of circumcision on transcutaneous Po2 in term infants . AJDC . 1980;;134:676-678.
Grunau R, Johnston C, Craig K.  Neonatal facial and cry responses to invasive and non-invasive procedures . Pain . 1990;;42:295-305.
Gunnar M, Malone S, Vance G, Fisch R.  Coping with aversive stimulation in the neonatal period: quiet sleep and plasma cortisol levels during recovery from circumcision . Child Dev . 1985;;56:824-834.
Lander J, Hodgins M, Nazarali S, McTavish J, Ouellette J, Friesen E.  Determinants of success and failure of EMLA . Pain . 1996;;64:89-97.
Streiner D, Norman G. Health Measurement Scales . 2nd ed. Oxford, England: Oxford University Press; 1995;.
Williamson P, Williamson M.  Physiologic stress reduction by a local anesthetic during newborn circumcision . Pediatrics . 1983;;71:36-40.
NeterJ, Wasserman W, Kutner M. Applied Linear Regression Models . 3rd ed. Homewood, Ill: Irwin Inc; 1983;.
Freedman B.  Equipoise and the ethics of clinical research . N Engl J Med . 1987;;317:141-145.
Stav A, Gur L, Gorelik U, Ovadia L, Isaakovich B, Sternberg A.  Modification of the penile block . World J Urol . 1995;;13:251-253.
Schoen E, Fischell A.  Pain in neonatal circumcision . Clin Pediatr . 1991;;30:429-432.
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