Anasthesia does not significantly decrease pain/stress during circumcision

orignal post:  http://cpj.sagepub.com/content/25/8/412.abstract

Neonatal Cortisol Response to Circumcision with Anesthesia

  1. Paul S. Williamson

    1. Department of Family Practice, The University of Iowa College of Medicine, Iowa City, Iowa
  1. Nolan Donovan Evans

    1. Department of Family Practice, The University of Iowa College of Medicine, Iowa City, Iowa

Abstract

Eleven male newborns were circumcised with a local dorsal penile nerve block, and 13 controls were circumcised without anesthetic. Matched pairs of pre- and postcircumcision cortisol levels in the two groups were compared. The adrenal cortisol response to surgery was not significantly reduced by the administration of lidocaine. Blood sampling and anesthetic injection of venipuncture alone did not evoke the adrenal response in uncircumcised control infants. Cortical input or secondary epinephrine elevation may be producing the cortisol elevation in infants despite regional blockage of the afferent nerve pathways.

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