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Inflammation increases sufentanil requirements during surgery for inflammatory bowel diseases
A Guidat1, M Fleyfel, B Vallet
1Hôpital Claude Huriez, Département d'Anesthésie Réanimation 2, Lille, France. a-guidat@chru-lille.fr
European Journal of Anaesthesiology
|December 24, 2003
Summary
Inflammatory bowel disease significantly increases the need for opioids like sufentanil during major abdominal surgery. This is linked to inflammation-induced hyperalgesia and changes in opioid-binding proteins.
Area of Science:
- Anesthesiology
- Gastroenterology
- Pharmacology
Background:
- Inflammation, a hallmark of inflammatory bowel disease (IBD), is known to promote hyperalgesia.
- Increased levels of alpha1-acid glycoprotein (AGP) during inflammation can enhance opioid binding, potentially increasing opioid requirements.
- The impact of acute IBD on intraoperative opioid needs during major abdominal surgery remains an area requiring further investigation.
Purpose of the Study:
- To investigate the influence of acute inflammatory bowel disease (IBD) on intraoperative opioid requirements during major abdominal surgery.
- To compare opioid (sufentanil) consumption in patients with Crohn's disease and ulcerative colitis versus a control group.
- To explore the relationship between plasma alpha1-acid glycoprotein concentrations, free sufentanil fractions, and opioid requirements in IBD patients.
Main Methods:
- Prospective study involving 17 Crohn's disease patients, 12 ulcerative colitis patients, and 7 controls undergoing major abdominal surgery.
- Sufentanil administration was titrated based on a 20% change in hemodynamic variables from preoperative values.
- Plasma concentrations of alpha1-acid glycoprotein and unbound sufentanil were measured in a subgroup; total plasma clearance of sufentanil was determined.
Main Results:
- Patients with Crohn's disease and ulcerative colitis required significantly higher intraoperative sufentanil doses compared to the control group.
- Total plasma clearance of sufentanil was elevated in IBD patients, despite similar surgery durations and free sufentanil fractions.
- Increased alpha1-acid glycoprotein levels were observed in IBD patients, correlating with higher sufentanil consumption during periods of pain stimulation.
Conclusions:
- Acute inflammatory bowel disease significantly increases intraoperative opioid requirements during major abdominal surgery.
- Elevated alpha1-acid glycoprotein and potentially altered sufentanil clearance contribute to the increased opioid demand in IBD patients.
- Understanding these pharmacokinetic and pharmacodynamic changes is crucial for optimizing pain management in IBD patients undergoing surgery.