I found some studies when I wrote an article about breastfeeding initiation in 2010.

The full article is on my website.  If you e-mail me, I will send you the link and you can use my article for your purpose if it is helpful.

"According to Wiklund, Norman, Uvnas-Moberg, Ransjo-Arvidson and Andolf (2009) significantly fewer babies of mothers with epidural anesthesia suckled the breast within the first 4 hours of life.  In another study, Jordan S, Emery S, Watkins A, Evans JD, Storey M and Morgan G. (2009) found lower breastfeeding rates associated with epidural anesthesia and drugs administered for induction of labor."

Wiklund I, Norman M, Uvnas-Moberg K, Ransjo-Arvidson AB, and Andolf E (2009) 
Epidural Anesthesia: breast-feeding success and related factors Apr;25(2):e31-8.
Jordan S, Emery S, Watkins A, Evans JD, Storey M, Morgan G. Associations of drugs 
routinely given in labor with breastfeeding at 48 hours: analysis of the Cardiff Births Survey BJOG. 2009 Nov;116(12):1622-9; discussion 1630-2

Laura Spitzfaden, LLLL, IBCLC

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