Preoperative hypoalbuminemia is an independent predictor of poor perioperative outcomes in women undergoing open surgery for gynecologic malignancies

Gynecol Oncol. 2013 Nov;131(2):416-22. doi: 10.1016/j.ygyno.2013.08.011. Epub 2013 Aug 17.

Abstract

Objective: To quantify the impact of preoperative hypoalbuminemia on 30-day mortality and morbidity after gynecologic cancer surgery.

Methods: Patients included in the National Surgical Quality Improvement Program (NSQIP) dataset who underwent any non-emergent surgery for gynecologic malignancy between 1/1/2008 and 12/31/2010 were identified. Analysis was conducted with albumin both as a dichotomous variable (<3.5 g/dl was defined as low albumin) and as a continuous variable to determine a clinically relevant cut-off value.

Results: Of the total 3171 patients identified, 2110 had preoperative albumin levels available for analysis. In addition, 279 (13.3%) of these patients had low albumin levels. According to multivariate analysis, the low albumin group had significantly higher odds of developing one or more post-operative complications (OR-2,CI: 1.47-2.73, p<0.0001), three or more complications (OR-4.1,CI: 2.31-7.1, p<0.0001), surgical complications (OR-2.39,CI: 1.59-3.58, p<0.0001), thromboembolic complications (OR-2.59,CI: 1.33-5.06, p<0.0001), pulmonary complications (OR-4.06,CI: 2.05-8.03, p<0.0001), or infectious complications (OR-1.84,CI: 1.26-2.69, p<0.0001) and a higher 30-day mortality (OR-6.52,CI: 2.51-16.95, p<0.0001). Upon subgroup analysis, this difference was not found in patients undergoing laparoscopic surgery. In patients undergoing open surgery, the probability of experiencing one or more post-operative complications increased linearly with the decrease in albumin level; however, the probability of patients experiencing three or more complications and 30-day mortality increased sharply as soon as the albumin level decreased below 3g/dl.

Conclusion: Preoperative albumin levels <3g/dL identify a population of patients at a very high-risk of experiencing perioperative morbidity and 30-day mortality after open surgery.

Keywords: Albumin; Gynecologic oncology; NSQIP; Nutritional status; Postoperative complications; Surgical outcomes.

MeSH terms

  • Female
  • Genital Neoplasms, Female / blood*
  • Genital Neoplasms, Female / mortality
  • Genital Neoplasms, Female / surgery*
  • Gynecologic Surgical Procedures / adverse effects
  • Gynecologic Surgical Procedures / mortality
  • Gynecologic Surgical Procedures / statistics & numerical data
  • Humans
  • Hypoalbuminemia / mortality
  • Hypoalbuminemia / pathology*
  • Middle Aged
  • Multivariate Analysis
  • Postoperative Complications / etiology
  • Postoperative Complications / mortality
  • Preoperative Period
  • Prognosis
  • Treatment Outcome
  • United States / epidemiology