"I am looking for any written information and/or research on the use of  
ultrasound for plugged ducts.  Can anyone help with this information?"

Barbara,  Here's what I have for references on the use of ultrasound for 
lactating women; nothing specific for plugged ducts.  Australia is the country 
where it is used most frequently.  I have had 2 moms have ultrasound with good 
results.  From a 2000 post from Cathy Fetherston:  "Effects of Therapeutic 
Ultrasound on Breastmilk composition: A single-case experimental study" by 
Luscombe, D. Jones, S. Cox, and P Hartmann.  The study used pulsed therapeutic 
ultrasound at 0.5, 0.8 and 1.0 w/cm2 applied alternately to the right and left 
breasts of one lactating woman with no mastopathy.  Only one dose on one side was 
given each week.  Baseline milk samples were taken and also at 5, 10, 15, 20, 25 
and 30 minutes post rest or treatment.  Biochemical analysis of lactose, fat, 
sodium, and potassium found no changes occurred after ultrasound treatment."

Another study on ultrasound for engorgement: McLachlan, Z. et al. 1991. 
Ultrasound treatment for breast engorgement: a randomised double blind trial. Aust 
Journal of Physiotherapy. 37:22-29.

Denise Fisher also posted on ultrasound ( Dec 2000) use so perhaps contacting 
them would be helpful.  Or look up their posts in the Archives.  Hope this is 
helpful.

Barbara Latterner, BSN, RN, IBCLC



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