Effect of Type of General Anesthesia Maintenance on Exhaled Nitric Oxide and Eosinophil Blood Count
NCT ID: NCT02065635
Last Updated: 2022-02-01
Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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COMPLETED
NA
60 participants
INTERVENTIONAL
2014-05-31
2018-04-30
Brief Summary
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* Propofol modifies NO production by stimulating the constitutive synthesis of NO and by inhibiting the inducible production of NO. It seems to exert protective effects on acute lung injury (ALI) in experimental models and it can possibly reduce exhaled NO. There is also evidence that some intravenous anesthetic agents can influence chemotaxis of eosinophils in vitro.
* Variation of exhaled NO and eosinophils in surgical patients undergoing anesthesia has not been studied before. Therefore, the aim of this study will be to investigate the differential impact of maintenance of general anesthesia with propofol versus maintenance with sevoflurane on exhaled NO and eosinophil blood count.
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Detailed Description
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* Propofol modifies NO production by stimulating the constitutive synthesis of NO and by inhibiting the inducible production of NO (González-Correa JA, et al, 2008). It seems to exert protective effects on acute lung injury in experimental models (Chu CH, et al, 2007; Chen HJ, et al, 2008) and possibly reduces exhaled NO (Fijałkowska A, et al, 2012). There is also evidence that some intravenous anesthetic agents can influence chemotaxis of eosinophils in vitro (Krumholz W, et al, 1999)
* Variation of exhaled NO and eosinophils in surgical patients undergoing anesthesia has not been studied before. Therefore, the aim of this study will be to investigate the differential impact of maintenance of general anesthesia with propofol versus maintenance with sevoflurane on exhaled NO and eosinophil blood count.
* Patients with ASA score I-III who undergo thyroidectomy under general anaesthesia will participate in this study. Thyroidectomy has been chosen for the following reasons: a) there will be consistency in both the surgeon and the type of surgery and as a result manipulations and surgical stress will be similar for all patients and b) abdominal walls are not manipulated at all during thyroidectomy and therefore postoperative measurement of exhaled NO will be easier and painless for patients.
* Patients will be randomized to one of two groups: one group with general anesthesia maintenance based on an intravenous agent (propofol) and a second group with general anesthesia maintenance based on an inhalational agent (sevoflurane).
* When patients arrive in the operating room, standard monitoring will be applied and exhaled NO will be measured immediately before induction with the NObreath® device ( Antus B, et al, 2010, Pisi R, et al, 2010) and a blood sample will be taken for eosinophil count measurement.
* During the patients' stay in the PACU and when Aldrete score is ≥8, exhaled NO will be measured again and a second blood sample will be taken. Exhaled NO will be measured again 24 hours postoperatively.
* The clinical implications of this study lie in the fact that it may provide further information on the effects of anesthetics (intravenous and inhalational) on the physiology and pathophysiology of the respiratory system. In addition, new evidence may come to light about the relationship between intravenous and inhalational agents and NO production.
Conditions
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Study Design
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RANDOMIZED
PARALLEL
BASIC_SCIENCE
SINGLE
Study Groups
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maintenance with sevoflurane
in patients allocated to the sevoflurane group, general anesthesia will be maintained with sevoflurane
maintenance with sevoflurane
in patients allocated to the sevoflurane group, general anesthesia will be maintained with sevoflurane
maintenance with propofol
in patients allocated to the propofol group, general anesthesia will be maintained with propofol
maintenance with propofol
in patients allocated to the propofol group, general anesthesia will be maintained with propofol
Interventions
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maintenance with sevoflurane
in patients allocated to the sevoflurane group, general anesthesia will be maintained with sevoflurane
maintenance with propofol
in patients allocated to the propofol group, general anesthesia will be maintained with propofol
Eligibility Criteria
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Inclusion Criteria
Exclusion Criteria
* patients with history of allergy
18 Years
75 Years
ALL
No
Sponsors
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Aretaieion University Hospital
OTHER
Responsible Party
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Dr Kassiani Theodoraki
Associate Professor in Anesthesiology
Principal Investigators
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Kassiani Theodoraki, PhD, DEAA
Role: PRINCIPAL_INVESTIGATOR
Aretaieion University Hospital
Artemis Vekrakou, MD
Role: PRINCIPAL_INVESTIGATOR
Aretaieion University Hospital
Eriphylli Argyra, PhD
Role: STUDY_CHAIR
Aretaieion University Hospital
Locations
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Aretaieion University Hospital
Athens, , Greece
Countries
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References
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Gaston B, Drazen JM, Loscalzo J, Stamler JS. The biology of nitrogen oxides in the airways. Am J Respir Crit Care Med. 1994 Feb;149(2 Pt 1):538-51. doi: 10.1164/ajrccm.149.2.7508323.
Warke TJ, Fitch PS, Brown V, Taylor R, Lyons JD, Ennis M, Shields MD. Exhaled nitric oxide correlates with airway eosinophils in childhood asthma. Thorax. 2002 May;57(5):383-7. doi: 10.1136/thorax.57.5.383.
Saraiva-Romanholo BM, Machado FS, Almeida FM, Nunes Mdo P, Martins MA, Vieira JE. Non-asthmatic patients show increased exhaled nitric oxide concentrations. Clinics (Sao Paulo). 2009;64(1):5-10. doi: 10.1590/s1807-59322009000100002.
Gonzalez-Correa JA, Cruz-Andreotti E, Arrebola MM, Lopez-Villodres JA, Jodar M, De La Cruz JP. Effects of propofol on the leukocyte nitric oxide pathway: in vitro and ex vivo studies in surgical patients. Naunyn Schmiedebergs Arch Pharmacol. 2008 Jan;376(5):331-9. doi: 10.1007/s00210-007-0220-4. Epub 2007 Dec 7.
Chu CH, David Liu D, Hsu YH, Lee KC, Chen HI. Propofol exerts protective effects on the acute lung injury induced by endotoxin in rats. Pulm Pharmacol Ther. 2007;20(5):503-12. doi: 10.1016/j.pupt.2006.03.006. Epub 2006 Apr 21.
Chen HI, Hsieh NK, Kao SJ, Su CF. Protective effects of propofol on acute lung injury induced by oleic acid in conscious rats. Crit Care Med. 2008 Apr;36(4):1214-21. doi: 10.1097/CCM.0b013e31816a0607.
Krumholz W, Abdulle O, Knecht J, Hempelmann G. Effects of i.v. anaesthetic agents on the chemotaxis of eosinophils in vitro. Br J Anaesth. 1999 Aug;83(2):333-5. doi: 10.1093/bja/83.2.333.
Antus B, Horvath I, Barta I. Assessment of exhaled nitric oxide by a new hand-held device. Respir Med. 2010 Sep;104(9):1377-80. doi: 10.1016/j.rmed.2010.06.005. Epub 2010 Jul 2.
Pisi R, Aiello M, Tzani P, Marangio E, Olivieri D, Chetta A. Measurement of fractional exhaled nitric oxide by a new portable device: comparison with the standard technique. J Asthma. 2010 Sep;47(7):805-9. doi: 10.3109/02770903.2010.485667.
Related Links
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video about the use of NOBreath device
information about NOBreath device
Other Identifiers
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NO-Artemis
Identifier Type: -
Identifier Source: org_study_id
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