Azithromycin uptake may reduce postcesarean infections
Overview
A retrospective analysis of nearly 1.7 million deliveries indicates that the use of adjunctive azithromycin during unscheduled cesarean deliveries increased significantly post-2016, leading to a 2-percentage-point reduction in postpartum infections.
Background
Postcesarean infections remain a significant concern in obstetric care, impacting maternal health outcomes. The introduction of adjunctive azithromycin has been shown to reduce infection rates in clinical trials.
Data Highlights
Delivery Type
Azithromycin Use Pre-Trial
Azithromycin Use Post-Trial
Postpartum Infection Rate Pre-Trial
Postpartum Infection Rate Post-Trial
Cesarean
2%
40%
9%
8%
Vaginal
0.01%
0.04%
2%
3%
Key Findings
Perioperative azithromycin use among cesarean deliveries increased from 2% to 40% following the publication of trial evidence.
Postpartum infection rates after cesarean delivery decreased from 9% to 8% during the same period.
Components of the composite infection outcome, including endometritis and sepsis, declined following cesarean delivery.
Azithromycin use remained low in vaginal deliveries, increasing only slightly from 0.01% to 0.04%.
The adjusted difference-in-differences estimate indicated a 20% relative decrease in postpartum infections associated with azithromycin use.
Fewer than 50% of cesarean delivery patients received azithromycin post-publication, compared to 100% in the trial.
Clinical Implications
The increase in azithromycin use among cesarean deliveries suggests a shift towards incorporating evidence-based practices in obstetric care. However, the incomplete adoption highlights the need for further efforts to standardize antibiotic prophylaxis in clinical settings.
Conclusion
The study demonstrates a significant increase in azithromycin use and a corresponding decrease in postpartum infections following cesarean deliveries, although the real-world impact is less pronounced than in clinical trials.
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