Aoife M Ryan et al (2007) The aim of this study was to determine if the absolute albumin level on the first postoperative day was of value in predicting in-hospital complications.  A retrospective study of 200 patients undergoing esophagectomy for malignant disease at St. James Hospital between 1999 and 2005 was performed . Serum albumin concentration on the first postoperative day is a better predictor of surgical outcome than many other preoperative risk factors. It is a low cost test that may be used as a prognostic tool to detect the risk of adverse surgical outcomes.

Gaetan-Romain Joliat  et al(2022) Postoperative complications are frequent after gastrointestinal surgery and early prediction remains an unmet need. Serum albumin shows a rapid decrease after surgery, and this decline (ΔAlb) may reflect the intensity of the surgical stress response and thereby be a predictor of postoperative complications. This study aimed to comprehensively review the available data on ΔAlb in gastrointestinal surgery. PRISMA guidelines were followed to conduct a systematic review of the literature in MEDLINE and Embase. Studies assessing the role of ΔAlb to predict complications after gastrointestinal surgery were included. Alb appeared as a valuable and promising biomarker to anticipate complications after gastrointestinal surgery. Future efforts are needed to determine whether and how ΔAlb may be integrated in clinical practice to guide clinicians in the perioperative management of patients.

"Now in this Study we are going to evaluate incidence of particular complication with respect to change in Albumin level"