Abstract
Background and purpose
Ghrelin, a stomach-derived hormone, stimulates growth hormone secretion and appetite, and inhibits excessive inflammatory response. Plasma ghrelin might affect the inflammatory response to stressful surgical interventions. The aim of this study was to investigate the relationship between serial changes in plasma ghrelin concentrations and the postoperative clinical course after esophagectomy.
Methods
The prospective cohort study subjects were 20 patients with esophageal cancer, who underwent esophagectomy with gastric tube reconstruction. Blood samples were taken six times perioperatively during the course of esophagectomy.
Results
The plasma ghrelin level decreased to 33 % (range 15–90 %) on postoperative day (POD) 1, relative to the preoperative level, then recovered to about 50 % by POD 3–10. The duration of systemic inflammatory response syndrome (SIRS) was significantly longer in patients with a marked ghrelin reduction to <33 % on POD 1, than in those with less marked reduction of ≥33 % (6.1 ± 1.3 vs. 2.1 ± 0.6 days, P = 0.019). On POD 1, the only inflammatory marker that correlated with the duration of SIRS was the % ghrelin, whereas C-reactive protein, leukocyte count, and IL-6 did not.
Conclusion
An early postoperative drop in plasma ghrelin correlated with prolonged SIRS after esophagectomy. Thus, the supplementation of low plasma ghrelin may help minimize excess inflammatory response in these patients.
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Acknowledgments
We thank Tomoyuki Sugimoto from the Department of Biomedical Statistics, Osaka University, for his help with statistical analyses. We also thank the doctors and nursing staff of the ICU at Osaka University Hospital for their expert care of the patients who participated in this clinical study.
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We declare no potential conflicts of interest.
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Yamamoto, K., Takiguchi, S., Miyata, H. et al. Reduced plasma ghrelin levels on day 1 after esophagectomy: a new predictor of prolonged systemic inflammatory response syndrome. Surg Today 43, 48–54 (2013). https://doi.org/10.1007/s00595-012-0342-2
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DOI: https://doi.org/10.1007/s00595-012-0342-2