Foregut Leaks-Role of Microbiome

For this study, investigators will compare the microbial composition of the infected fluid from the leak to that of a tissue sample taken from the participant. This will allow investigators to compare the composition and virulence of the microbiome both within and between participants. These comparisons will help further the understanding of the pathogenesis of these leaks, as well as identify which participants may be most at risk of developing postoperative leaks. The combination of this information has the potential to contribute to the development of preventative measures and improve patient outcomes.