NCT02065635

Brief Summary

  • Nitric oxide (NO) is a free radical in gas state which plays an important role in a variety of processes relevant to respiratory physiology. It represents a means of detecting airway hyperresponsiveness and appears to have a strong correlation with the eosinophilic infiltration of the airway. Patients who suffered bronchospasm or laryngospasm intraoperatively or postoperatively showed higher levels of exhaled NO.
  • 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.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
60

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started May 2014

Longer than P75 for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

February 15, 2014

Completed
4 days until next milestone

First Posted

Study publicly available on registry

February 19, 2014

Completed
2 months until next milestone

Study Start

First participant enrolled

May 1, 2014

Completed
3.9 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

April 1, 2018

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

April 1, 2018

Completed
Last Updated

February 1, 2022

Status Verified

January 1, 2022

Enrollment Period

3.9 years

First QC Date

February 15, 2014

Last Update Submit

January 30, 2022

Conditions

Outcome Measures

Primary Outcomes (1)

  • change of exhaled nitric oxide from preoperative status to immediate postoperative status

    preoperatively, immediately postoperatively

Secondary Outcomes (2)

  • change of exhaled nitric oxide from preoperative status to 24 hours postoperatively

    preoperatively, 24 hours postoperatively

  • change of eosinophil blood count from preoperative status to immediate postoperative status

    preoperatively, immediately postoperatively

Study Arms (2)

maintenance with sevoflurane

EXPERIMENTAL

in patients allocated to the sevoflurane group, general anesthesia will be maintained with sevoflurane

Procedure: maintenance with sevoflurane

maintenance with propofol

ACTIVE COMPARATOR

in patients allocated to the propofol group, general anesthesia will be maintained with propofol

Procedure: maintenance with propofol

Interventions

in patients allocated to the sevoflurane group, general anesthesia will be maintained with sevoflurane

maintenance with sevoflurane

in patients allocated to the propofol group, general anesthesia will be maintained with propofol

maintenance with propofol

Eligibility Criteria

Age18 Years - 75 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • adult patients, American Society of Anesthesiologists (ASA) distribution I-III, scheduled for thyroidectomy

You may not qualify if:

  • patients with history of airway hyperreactivity (asthma, bronchitis)
  • patients with history of allergy

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Aretaieion University Hospital

Athens, 115 28, Greece

Location

Related Publications (9)

  • 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.

    PMID: 7508323BACKGROUND
  • 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.

    PMID: 11978911BACKGROUND
  • 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.

    PMID: 19142544BACKGROUND
  • 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.

    PMID: 18064439BACKGROUND
  • 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.

    PMID: 16713316BACKGROUND
  • 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.

    PMID: 18379248BACKGROUND
  • 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.

    PMID: 10618953BACKGROUND
  • 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.

    PMID: 20594818BACKGROUND
  • 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.

    PMID: 20670207BACKGROUND

Related Links

MeSH Terms

Interventions

MaintenanceSevofluranePropofol

Intervention Hierarchy (Ancestors)

Health Care Facilities Workforce and ServicesMethyl EthersEthersOrganic ChemicalsHydrocarbons, FluorinatedHydrocarbons, HalogenatedHydrocarbonsPhenolsBenzene DerivativesHydrocarbons, AromaticHydrocarbons, Cyclic

Study Officials

  • Kassiani Theodoraki, PhD, DEAA

    Aretaieion University Hospital

    PRINCIPAL INVESTIGATOR
  • Artemis Vekrakou, MD

    Aretaieion University Hospital

    PRINCIPAL INVESTIGATOR
  • Eriphylli Argyra, PhD

    Aretaieion University Hospital

    STUDY CHAIR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
PARTICIPANT
Purpose
BASIC SCIENCE
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Associate Professor in Anesthesiology

Study Record Dates

First Submitted

February 15, 2014

First Posted

February 19, 2014

Study Start

May 1, 2014

Primary Completion

April 1, 2018

Study Completion

April 1, 2018

Last Updated

February 1, 2022

Record last verified: 2022-01

Locations