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CompletedNCT00356746IRASUpdated Jun 24, 2015

Inflammatory Response During Anesthesia and Surgery

An observational study in Systemic Inflammatory Response Syndrome and Myocardial Ischemia, sponsored by UMC Utrecht. Completed at 1 site in Netherlands. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2015-06-24.

Sponsored by UMC Utrecht · Observational

Study type
Observational
Model
Cohort
Time perspective
Prospective
Enrollment
120
Ages
18 Years and older
Sex
All
01

Study summary

The purpose of this study is to investigate the effects of total intravenous anesthesia versus volatile anesthesia on the perioperative inflammatory response during and after major surgery.

Read the detailed description

Patients undergoing major surgical procedures, in particular those undergoing cardiac surgery, develop a severe inflammatory response in up to 50% of cases leading to increased mortality and morbidity. The inflammatory response depends on the surgical procedure and on patient related factors like genetic predisposition and co morbidities. However, in vitro studies showed that the type and duration of general anaesthesia also influences the extent of perioperative inflammation.

Comparison: total intravenous anesthesia by propofol is compared to volatile anesthesia by isoflurane with respect to development of perioperative inflammatory response.

The IRAS study is a single centre study, executed in the University Medical Centre Utrecht, The Netherlands. Four different patient groups are included. 1) Patients undergoing coronary artery bypass grafting (CABG) with use of cardiopulmonary bypass (CPB), 2) patients undergoing aorta aneurysm repair via endovascular approach and 3) via conventional open procedure, and 4) patients undergoing surgery for replacement of implantable cardioverter defibrillator (ICD).

The IRAS is a prospective, randomized clinical trial. Patients are randomly assigned to a intravenous or a balanced anaesthesia technique. Peripheral blood samples are drawn before, during and up to 72h after surgery.

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Conditions studied

  • Systemic Inflammatory Response Syndrome
  • Myocardial Ischemia

Keywords

  • Perioperative inflammatory response
  • General anesthesia
  • Toll-Like Receptors
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In context

Myocardial Ischemia

3,233 studies on the registry are indexed under Myocardial Ischemia; 396 are open to participants now.

This study's enrollment of 120 is below the median of 332 across 1,140 observational studies indexed under Myocardial Ischemia.

Browse Myocardial Ischemia studies →

Lead sponsor

UMC Utrecht is the lead sponsor of 350 studies on the registry; 80 are open to participants now.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Non-probability sample

Study population

specific surgical patients receiving general anesthesia of university teaching hospital

Inclusion criteria

  • Patients older than 18 years and planned for elective Coronary Artery Bypass Grafting (CABG), aorta surgery or Implantable Cardioverter Defibrillator (ICD) replacement

Exclusion criteria

Exclusion Criteria:

  • Emergency operations
  • Patients undergoing combined or re-do procedures
  • Patients who are diagnosed with or undergoing treatment for a steroid or hormone disorder, excluding diabetes
  • Patients suffering from chronic inflammatory diseases
  • Patients suffering form current infections
  • Patients currently treated with steroids
  • Patients undergoing treatment or care for a malignancy
  • Patients participating in another study that may interfere with the endpoints of the IRAS trial
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Study design

Observational model
Cohort
Time perspective
Prospective
Enrollment
120 participants (actual)
Biospecimen retention
Samples without dna

Groups and cohorts

  • 1

    elective CABG only patients

  • 2

    elective ICD replacement surgical patients requiring general anesthesia

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What researchers measure

Primary outcomes

  1. Perioperative inflammatory response through measurement of expression and responsiveness of Toll-like Receptor (TLR) 2 and 4 of monocytes from full blood samples.

    Time frame: 72 hours

Secondary outcomes

  1. Parameters of systemic haemodynamics

    Time frame: 72 hours

  2. Need of vasoactive medication to develop predefined haemodynamic goals

    Time frame: 72 hours

  3. Biochemical parameter of myocardial ischaemia and infarction (Troponin-I), measured immediately before and after surgery, 24 hr and 72hr after surgery

    Time frame: 72 hours

  4. Serious adverse events assessed 3 days after surgery, at discharge, 30 days and one year after surgery

    Time frame: 1 year

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Study locations

1 site
  • UMC Utrecht, Division of Perioperative Care and Emergency Medicine, Department of Anesthesiology
    Utrecht, 3508 GA, Netherlands
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References and documents

Publications

  • de Kleijn D, Pasterkamp G. Toll-like receptors in cardiovascular diseases. Cardiovasc Res. 2003 Oct 15;60(1):58-67. doi: 10.1016/s0008-6363(03)00348-1. PubMed 14522407 ↗
  • de Rossi LW, Brueckmann M, Rex S, Barderschneider M, Buhre W, Rossaint R. Xenon and isoflurane differentially modulate lipopolysaccharide-induced activation of the nuclear transcription factor KB and production of tumor necrosis factor-alpha and interleukin-6 in monocytes. Anesth Analg. 2004 Apr;98(4):1007-1012. doi: 10.1213/01.ANE.0000106860.27791.44. PubMed 15041589 ↗
  • Larsen B, Hoff G, Wilhelm W, Buchinger H, Wanner GA, Bauer M. Effect of intravenous anesthetics on spontaneous and endotoxin-stimulated cytokine response in cultured human whole blood. Anesthesiology. 1998 Nov;89(5):1218-27. doi: 10.1097/00000542-199811000-00023. PubMed 9822011 ↗
  • Flier S, Concepcion AN, Versteeg D, Kappen TH, Hoefer IE, de Lange DW, Pasterkamp G, Buhre WF. Monocyte hyporesponsiveness and Toll-like receptor expression profiles in coronary artery bypass grafting and its clinical implications for postoperative inflammatory response and pneumonia: An observational cohort study. Eur J Anaesthesiol. 2015 Mar;32(3):177-88. doi: 10.1097/EJA.0000000000000184. PubMed 25405275 ↗
  • Flier S, Post J, Concepcion AN, Kappen TH, Kalkman CJ, Buhre WF. Influence of propofol-opioid vs isoflurane-opioid anaesthesia on postoperative troponin release in patients undergoing coronary artery bypass grafting. Br J Anaesth. 2010 Aug;105(2):122-30. doi: 10.1093/bja/aeq111. Epub 2010 Jun 23. PubMed 20573633 ↗
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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jun 24, 2015, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT00356746
Lead sponsor
UMC Utrecht
Collaborators
European Association of Cardiothoracic Anaesthesiologists
First posted
Jul 26, 2006
Start date
Mar 2006
Primary completion
Dec 2007
Completion
Mar 2009
Last update
Jun 24, 2015

Study contacts

Cor J Kalkman, Prof MD PhD
study chair · University Medical Centre Utrecht, The Netherlands
Wolfgang F Buhre, MD PhD
study director · University Medical Centre Utrecht, The Netherlands
Gerard Pasterkamp, Prof MD PhD
study director · University Medical Centre Utrecht, The Netherlands

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Jun 2008. You cannot join it, but the record below documents what was studied.

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