Abstract
Purpose
To examine the changes in blood-soluble phospholipase A2-IIA levels caused by surgical stress and postoperative infections.
Methods
We retrospectively analyzed a prospective database of 40 patients who underwent esophagectomy for esophageal cancer. Nine of these patients had a postoperative infection (E Inf(+) group), and 31 did not have a postoperative infection (E Inf(−) group). The blood sPLA2-IIA level was measured using a radioimmunoassay, and whole blood was stimulated with lipopolysaccharide (LPS) to examine the sPLA2-IIA production.
Results
In the E Inf(−) group, the blood sPLA2-IIA levels peaked on postoperative day (POD) 3 then decreased gradually thereafter. Receiver-operator characteristic statistics based on the sPLA2-IIA values on POD 5, which are used to classify postoperative infectious complications, revealed an area under the curve of 0.789. However, stimulation of peripheral blood cells with LPS did not induce the production of sPLA2-IIA.
Conclusion
During the early postoperative phase, blood sPLA2-IIA levels increase according to the surgical stress. Soluble PLA2-IIA may be produced at the site of infection or in the liver, but not in the circulating blood. Sustained elevation of the serum sPLA2-IIA level, observed even after POD 3, seems to represent a response to postoperative infection.
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Ogawa, M., Sato, N., Endo, S. et al. Group IIA-Soluble Phospholipase A2 Levels in Patients with Infections After Esophageal Cancer Surgery. Surg Today 35, 912–918 (2005). https://doi.org/10.1007/s00595-005-3059-7
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DOI: https://doi.org/10.1007/s00595-005-3059-7