NCT01937104

Brief Summary

Increase of intracerebral pressure (ICP) during laparoscopic surgery has known to be associated with positional changes. Optic nerve sheath diameter (ONSD) has correlation with ICP and ultrasonographic measurement of optic nerve sheath diameter (ONSD) is known to be a noninvasive and rapidly applicable technique for evaluating ICP. The aim of this study is to investigate the change of ONSD according to the positional change during laparoscopic surgery.

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 Sep 2013

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

Study Start

First participant enrolled

September 1, 2013

Completed
3 days until next milestone

First Submitted

Initial submission to the registry

September 4, 2013

Completed
5 days until next milestone

First Posted

Study publicly available on registry

September 9, 2013

Completed
12 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 1, 2014

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

September 1, 2014

Completed
Last Updated

October 30, 2014

Status Verified

October 1, 2014

Enrollment Period

1 year

First QC Date

September 4, 2013

Last Update Submit

October 28, 2014

Conditions

Keywords

Intracranial pressureLaparoscopyOptic nerve sheath diameterPosition

Outcome Measures

Primary Outcomes (1)

  • ONSD and PaCO2

    ONSD and PaCO2 - 5 minutes after introducing positional change

    5 minutes after introducing positional change

Secondary Outcomes (1)

  • ONSD and PaCO2

    5 minutes after introducing pneumoperitoneum

Other Outcomes (5)

  • Preinduction ONSD

    prior to the induction of anesthesia, an expected average of 5 minutes

  • ONSD and PaCO2

    5 minutes after induction of anesthesia

  • ONSD and PaCO2

    15 minutes after positional change

  • +2 more other outcomes

Study Arms (2)

Group 1

EXPERIMENTAL

Drug: Desflurane Anesthesia with desflurane in both Group 1 and Group 2 - adjust minimum alveolar concentration (MAC) to maintain bispectral index (BIS) between 40-60 Drug: Remifentanil Adjuvant continuous administration \- adjust effect site concentration to maintain changes of vital sign below 20% Device: Ultrasonographic measurement of ONSD Procedure/Surgery: Mechanical ventilation Maintain the end-tidal carbon dioxide partial pressure between 35 and 40 mmHg and peak inspiratory pressure below 30 cmH2O. Trendelenburg position - 30 degree

Drug: DesfluraneDrug: RemifentanilDevice: Ultrasonographic measurement of ONSDProcedure: Mechanical ventilationProcedure: Trendelenburg position - 30 degree

Group 2

EXPERIMENTAL

Drug: Desflurane Anesthesia with desflurane in both Group 1 and Group 2 - adjust MAC to maintain BIS between 40-60 Drug: Remifentanil Adjuvant continuous administration \- adjust effect site concentration to maintain changes of vital sign below 20% Device: Ultrasonographic measurement of ONSD Procedure/Surgery: Mechanical ventilation Maintain the end-tidal carbon dioxide partial pressure between 35 and 40 mmHg and peak inspiratory pressure below 30 cmH2O. Reverse Trendelenburg position - 30 degree

Drug: DesfluraneDrug: RemifentanilDevice: Ultrasonographic measurement of ONSDProcedure: Mechanical ventilationProcedure: Reverse Trendelenburg position - 30 degree

Interventions

Anesthesia with desflurane in both Group 1 and Group 2 \- adjust MAC to maintain BIS between 40-60

Group 1Group 2

Adjuvant continuous administration \- adjust effect site concentration to maintain changes of vital sign below 20%

Also known as: Ultiva
Group 1Group 2

Patients were placed in the supine position with their eyes closed, and a thick gel layer was applied to the closed upper eyelid. The 7.5-MHz linear probe was placed on the gel without excessive pressure and adjusted to the proper angle for displaying the entry of the optic nerve into the globe. The intensity of the ultrasound was adjusted to display optimal contrast between the retrobulbar echogenic fat tissue and the vertical hypoechoic band. An ultrasound beam was focused on the retrobulbar area (4 cm deep) using the lowest possible acoustic power that could measure ONSD. The ONSD was measured 3 mm behind the optic disc. Measurements were performed in the transverse and sagittal planes of both eyes, and the final ONSD value was calculated by averaging 4 measured values.

Group 1Group 2

After tracheal intubation, the lungs of the patients were then ventilated with oxygen in air (1:2) using a tidal volume of 8-10 mL/kg and a respiratory rate of 10-12/min, and the ventilation rate was adjusted to maintain the end-tidal carbon dioxide partial pressure between 35 and 40 mmHg and peak inspiratory pressure below 30 cmH2O.

Group 1Group 2

Trendelenburg position - 30 degree

Group 1

Reverse Trendelenburg position - 30 degree

Group 2

Eligibility Criteria

Age19 Years - 65 Years
Sexfemale
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Female patients who are scheduled to undergo laparoscopic surgery, American society of anesthesiologist class (ASA) I-II, aged between 19 to 65 years

You may not qualify if:

  • Aged unger 18 years or over 65 years
  • American society of anesthesiologist class (ASA) III-IV
  • Patients with increased intracranial pressure (e.g. hydrocephalus, intracranial hemorrhage, etc.)
  • Patients with opthalmologic disease

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Chosun University Hospital

Gwangju, Donggu, 501-717, South Korea

Location

Related Publications (5)

  • Gerges FJ, Kanazi GE, Jabbour-Khoury SI. Anesthesia for laparoscopy: a review. J Clin Anesth. 2006 Feb;18(1):67-78. doi: 10.1016/j.jclinane.2005.01.013.

  • Moretti R, Pizzi B. Ultrasonography of the optic nerve in neurocritically ill patients. Acta Anaesthesiol Scand. 2011 Jul;55(6):644-52. doi: 10.1111/j.1399-6576.2011.02432.x. Epub 2011 Apr 4.

  • Geeraerts T, Newcombe VF, Coles JP, Abate MG, Perkes IE, Hutchinson PJ, Outtrim JG, Chatfield DA, Menon DK. Use of T2-weighted magnetic resonance imaging of the optic nerve sheath to detect raised intracranial pressure. Crit Care. 2008;12(5):R114. doi: 10.1186/cc7006. Epub 2008 Sep 11.

  • Moretti R, Pizzi B, Cassini F, Vivaldi N. Reliability of optic nerve ultrasound for the evaluation of patients with spontaneous intracranial hemorrhage. Neurocrit Care. 2009 Dec;11(3):406-10. doi: 10.1007/s12028-009-9250-8.

  • Geeraerts T, Launey Y, Martin L, Pottecher J, Vigue B, Duranteau J, Benhamou D. Ultrasonography of the optic nerve sheath may be useful for detecting raised intracranial pressure after severe brain injury. Intensive Care Med. 2007 Oct;33(10):1704-11. doi: 10.1007/s00134-007-0797-6. Epub 2007 Aug 1.

MeSH Terms

Conditions

CholecystitisOvarian CystsOvarian NeoplasmsMyofibromaUterine Cervical Neoplasms

Interventions

DesfluraneRemifentanilRespiration, Artificial

Condition Hierarchy (Ancestors)

Gallbladder DiseasesBiliary Tract DiseasesDigestive System DiseasesCystsNeoplasmsOvarian DiseasesAdnexal DiseasesGenital Diseases, FemaleFemale Urogenital DiseasesFemale Urogenital Diseases and Pregnancy ComplicationsUrogenital DiseasesGenital DiseasesGonadal DisordersEndocrine System DiseasesEndocrine Gland NeoplasmsNeoplasms by SiteGenital Neoplasms, FemaleUrogenital NeoplasmsNeoplasms, Connective TissueNeoplasms, Connective and Soft TissueNeoplasms by Histologic TypeConnective Tissue DiseasesSkin and Connective Tissue DiseasesUterine NeoplasmsUterine Cervical DiseasesUterine Diseases

Intervention Hierarchy (Ancestors)

Ethyl EthersEthersOrganic ChemicalsMethyl EthersHydrocarbons, FluorinatedHydrocarbons, HalogenatedHydrocarbonsPropionatesAcids, AcyclicCarboxylic AcidsPiperidinesHeterocyclic Compounds, 1-RingHeterocyclic CompoundsAirway ManagementTherapeuticsResuscitationEmergency TreatmentRespiratory Therapy

Study Officials

  • Ki Tae Jung, M.D.

    Department of Anesthesiology and Pain medicine School of Medicine, Chosun University

    STUDY CHAIR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NON RANDOMIZED
Masking
NONE
Purpose
DIAGNOSTIC
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Assist professor

Study Record Dates

First Submitted

September 4, 2013

First Posted

September 9, 2013

Study Start

September 1, 2013

Primary Completion

September 1, 2014

Study Completion

September 1, 2014

Last Updated

October 30, 2014

Record last verified: 2014-10

Locations