Dimitrov E, Halacheva K, Minkov G, Enchev E, Yovtchev Y. Better chance of survival is associated with higher neutrophil CD16 expression in patients with complicated intra-abdominal infections.
Eur J Microbiol Immunol (Bp) 2024;
14:37-43. [PMID:
38231257 PMCID:
PMC10895360 DOI:
10.1556/1886.2023.00046]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Accepted: 12/20/2023] [Indexed: 01/18/2024] Open
Abstract
Aim
The ability of neutrophil CD16 (nCD16) expression to predict outcome in complicated intra-abdominal infections (cIAIs) has not yet been studied; therefore we aimed to evaluate its potential prognostic value in such patients.
Methods
Between November 2018 and August 2021 a single-center prospective study was performed in the Department of Surgical Diseases at a University Hospital Stara Zagora. A flow cytometry was used to measure the levels of nCD16 before surgery and on the 3rd postoperative day (POD) in 62 patients with cIAIs.
Results
We observed a mortality rate of 14.5% during hospitalization. Survivors had significantly higher perioperative expression of nCD16 than non-survivors (P = 0.02 preoperatively and P = 0.006 postoperatively). As predictor of favorable outcome we found a good predictive performance of preoperative nCD16 (AUROC = 0.745) and a very good predictive performance of postoperative levels (AUROC = 0.846). An optimal preoperative threshold nCD16 = 34.75 MFI permitted prediction of survival with sensitivity and specificity of 66.7% and 77.8%, respectively. A better sensitivity of 72.5% and specificity of 85.7% were observed for threshold = 54.8 MFI on the 3rd POD.
Conclusion
Perioperative neutrophil CD16 expression shows a great potential as a predictor of favorable outcome in patients with cIAIs.
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