Early dynamics of leptin plasma level in surgical critically ill patients. a prospective comparative study.
2014
BACKGROUND: Leptin (LPT), a hormone secreted by adipocytes,plays a role in inflammation and infection. Our study aimed to characterize the early dynamics of LPT in comparison with CRP and IL-6 during systemic inflammatory response syndrome(SIRS) and sepsis in surgical patients. METHODS: Sixty patients were assigned into 3 equal groups:SIRS (SI) group with major abdominal elective surgery;sepsis (SE) group with community-acquired complicated intra-abdominal infection and controls (C). LPT, CRP and IL-6 were measured initially in all groups and repeated in groups SI and SE within 5 days after surgery (9 samples - 4 day 1, 2 day 2, 1 next 3 days). RESULTS: LPT increased at 12-24 hours in SI group, but stayed within normal range in SE group. CRP and IL-6 had higher values in SE group versus SI group with an early peak for IL-6 and a late peak for CRP. CONCLUSIONS: LPT has a different early dynamics during SIRS and sepsis. LPT measurement in association with CRP or IL-6 may be useful in the differential diagnosis and prognosis of surgical critical illness at different time courses.
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