Abdominoplasty complications show no significant difference between patients with and without history of metabolic surgeryPrior bariatric surgery does not increase common abdominoplasty complications

This meta-analysis evaluated the impact of a history of metabolic and bariatric surgery (MBS) on surgical outcomes in patients undergoing abdominoplasty. The study analyzed data from 27 different studies involving a total population of 6328 patients who had a documented history of MBS. The primary objective was to determine if prior weight loss surgery influenced the incidence of common complications following abdominal contouring procedures.

The analysis compared two distinct cohorts: patients with a history of metabolic and bariatric surgery (MBS) and patients without such a surgical history (non-MBS). While specific dosing or procedural protocols were not detailed in the meta-analysis, the focus remained on the clinical outcomes associated with the presence or absence of prior MBS. The study aimed to provide clarity for surgeons managing patients who have undergone significant weight loss through bariatric interventions before pursuing cosmetic body contouring.

Regarding primary outcomes, the analysis found no significant differences between the MBS and non-MBS groups across several critical complications. These included wound dehiscence, surgical site infection, skin necrosis, fat necrosis, deep venous thrombosis, and reoperation. The results indicate that a history of metabolic surgery does not appear to increase the risk for these specific adverse events in the context of abdominoplasty. This finding is clinically relevant as it suggests that the physiological changes associated with prior bariatric procedures do not necessarily compromise the safety of subsequent abdominal surgeries.

Secondary outcomes provided more nuanced data regarding localized complications. The analysis found that body contouring surgery after MBS was associated with a higher risk of seroma and hematoma compared to cases involving patients without a history of MBS. Additionally, an inverse association was identified between body mass index (BMI) at the time of abdominoplasty and wound dehiscence; specifically, a lower BMI at the time of surgery was associated with a higher risk of wound dehiscence. These findings suggest that while major complications are comparable, localized fluid collections may be more prevalent in the post-MBS population.

Safety and tolerability were assessed through the tracking of various adverse events including wound dehiscence, surgical site infection, skin necrosis, fat necrosis, deep venous thrombosis, reoperation, seroma, and hematoma. While no specific rates or counts for these events were provided in the meta-analysis, the comparative analysis showed that the primary complications did not differ significantly between groups. No data regarding serious adverse events or study discontinuations were reported.

These results provide a stable baseline for clinical practice, suggesting that surgeons can proceed with abdominoplasty on post-MBS patients with similar expectations for major complications as they would for non-MBS patients. However, the higher incidence of seroma and hematoma in the MBS group may necessitate specific postoperative monitoring or techniques to manage local fluid collection. The inverse relationship between BMI and wound dehiscence highlights the importance of patient selection and surgical technique relative to the patient's current weight. The study is limited by its nature as a meta-analysis of observational data, meaning results indicate associations rather than direct causation. Furthermore, specific methodological limitations were not reported in the source data. Questions remain regarding the specific factors that contribute to higher seroma rates in the MBS population and whether specific surgical techniques can mitigate these risks. Clinicians should interpret these findings with caution due to the underlying observational nature of the included studies.