T wo recent Italian studies review the literature on the treatment of capsular contracture (CC) of the breast. 1,2 A third study, from Australia, evaluates data from the Australian Breast Device Registry. 3 All 3 studies endorse irrigation of breast implant pockets with antimicrobial solutions, favoring Betadine. Remarkably, none of the studies discuss or reference contradictory evidence.
LIMITATIONS OF PUBLICATIONS SUPPORTING ANTIMICROBIAL IRRIGATIONFederica et al 1 identified 413 publications, selecting 15 studies for inclusion in their review. These reviewers reported that a triple antibiotic solution composed of 50,000 U Bacitracin, Ancef 1 g, and Gentamicin 80 mg reduced the CC rate 4 to 5 times. This is an important conclusion and one that merits close consideration. This figure was taken from an uncontrolled 2006 study by Adams et al, 4 which compared their reported CC rate of 1.8% using triple antibiotic irrigation in breast augmentation patients with external manufacturer core data. The sample size was 172 patients and the mean follow-up time was 14 months. Manufacturer core studies report much greater rates of CC (ie, 8%-19%), 5 likely because of longer, more rigorous follow-up and larger sample sizes.These authors next reference another publication by the same lead author. 6 This 2017 study reported a CC rate of 2.2%, again much lower than figures reported in manufacturer core studies. 5 This 2017 study claimed that following 14 points including antibiotic irrigation could not only greatly reduce the CC risk but also eliminate the risk of breast implant-associated anaplastic large-cell lymphoma (BIA-ALCL). However, this publication was not based on reliable clinical data. 7 It was actually an email survey by SurveyMonkey, although that fact was not disclosed. There was no description regarding how patients were contacted to determine whether CC or BIA-ALCL had developed.There were other problems with the data. 7 Adams et al 6 reported that 6 surgeons adhered to all 14 points and the other 2 contributing surgeons followed 13 of the 14 points. However, the original survey data revealed that the authors routinely omitted many of the 14 points, especially when performing breast reconstruction (mean, 4.7 points). The follow-up time was implausible. Swedish contributor Hedén reported a 14-year mean follow-up time in 16,000 patients. 6 The article was submitted for publication only 3 years after publication of the 14 points. 7 Breast augmentation patients are not known to keep long-term follow-up appointments. The scientific basis for the 14 points has always been questionable, 7 and this protocol has been largely discredited. 8