After a mastectomy, many women choose immediate breast reconstruction using a tissue expander. A major worry is a surgical site infection, which can derail the entire process. Doctors have debated the best way to prevent this: is a single antibiotic dose right before surgery enough, or do patients need a full week of pills afterward?
A trial involving 214 women compared the two approaches. In the group that got just the single dose, 17% developed an infection within 30 days. In the group that got antibiotics for a week, 11% got an infection. While that 6% difference fell within a pre-set margin the researchers considered acceptable, the study's statistics did not definitively prove the single dose was 'not inferior' to the longer course.
Other important outcomes—like needing the expander removed, going back to the hospital, or having another operation—were similar between the two groups. The study doesn't report on side effects from the antibiotics themselves, which is a key consideration when weighing a longer course of medication.
So, what does this mean for patients? The study didn't give a green light to the simpler, single-dose approach. But it also didn't prove that putting everyone on a week of antibiotics is the better choice. For now, the decision remains a practical one for surgeons and patients to discuss, weighing the risk of infection against the burden of a longer medication regimen.
