NCT03978819

Brief Summary

Surgery of large cerebellopontine angle (CPA) tumors (\>2 x 2 cm diameter), with compression of the pons exposes the patient to inadvertent parasympathetic nerve stimulation (IPNS) leading to bradycardia and asystole. The analgesia nociception index (ANI) monitor assesses the balance between analgesia and nociception through the detection of parasympathetic tone. ANI \>80 generally denotes excessive analgesia (EA). The main objective of this study was to determine whether ANI values for IPNS are different or the same as ANI values for EA. This study also aims at calculating the number of patients with IPNS and EA during surgery of large CPA tumours.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
100

participants targeted

Target at P50-P75 for all trials

Timeline
Completed

Started Nov 2015

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

November 1, 2015

Completed
2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

November 1, 2017

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

November 1, 2017

Completed
1.6 years until next milestone

First Submitted

Initial submission to the registry

May 21, 2019

Completed
17 days until next milestone

First Posted

Study publicly available on registry

June 7, 2019

Completed
Last Updated

June 7, 2019

Status Verified

June 1, 2019

Enrollment Period

2 years

First QC Date

May 21, 2019

Last Update Submit

June 5, 2019

Conditions

Keywords

Analgesia nociception indexParasympathetic nerve stimulationExcessive analgesia

Outcome Measures

Primary Outcomes (2)

  • Differences in instantaneous ANI (ANIi) values during bradycardia versus ANIi values when Remifentanil effect size concentration >6ng/mL

    ANI, HR and Remifentanil effect site concentration were continuously recorded with event markers on the ANI monitor at the onset of bradycardia (HR\<45 bpm) or Remifentanil effect site concentration\>6ng/mL

    ANIi values recorded at Day 1 only during surgery (duration: 4-6 hours)

  • Differences in the area under the ROC curves between ANI values for IPNS and EA analgesia

    ROC curves were built at different ANIi for IPNS or EA

    ANIi values recorded at Day 1 only during surgery (duration: 4-6 hours)

Secondary Outcomes (1)

  • Percentages of IPNS and EA cases

    Cases observed at Day 1 only during surgery (duration: 4-6 hours)

Study Arms (1)

Patients with large CPA tumors

Patients with large cerebellopontine angle tumors (\>2 x 2cm) undergoing elective surgery

Device: ANI

Interventions

ANIDEVICE

ANI profiles during IPNS (bradycardia/asystole) or excessive analgesia. During surgery continuous monitoring of ANI, HR and Remifentanil effect site concentration was done and recorded. Event markers were placed at the onset of bradycardia, asystole and the coincidence of ANI\>80 + Remifentanil \>6ng/mL). ANI values of 1 min before and 1 min after the event were used for analysis.

Patients with large CPA tumors

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Male or female with large cerebellopontine angle tumors (\>2 x 2 cm)

You may qualify if:

  • patients undergoing elective surgery of large cerebellopontine angle tumors

You may not qualify if:

  • age below 18yr
  • arrhythmia
  • preoperative use of vagolytics, β-blockers and clonidine.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

CHU Bordeaux University Hospital

Bordeaux, 33076, France

Location

Related Publications (9)

  • Renowden S. Imaging of the cerebello-pontine angle. Pract Neurol. 2014 Oct;14(5):e2. doi: 10.1136/practneurol-2014-000949. Epub 2014 Aug 12. No abstract available.

    PMID: 25118279BACKGROUND
  • Sesay M, Vignes JR, Stockle M, Mehsen M, Boulard G, Maurette P. [Spectral analysis of the ECG R-R interval permits early detection of vagal responses to neurosurgical stimuli]. Ann Fr Anesth Reanim. 2003 May;22(5):421-4. doi: 10.1016/s0750-7658(03)00094-7. French.

    PMID: 12831969BACKGROUND
  • De Jonckheere J, Rommel D, Nandrino JL, Jeanne M, Logier R. Heart rate variability analysis as an index of emotion regulation processes: interest of the Analgesia Nociception Index (ANI). Annu Int Conf IEEE Eng Med Biol Soc. 2012;2012:3432-5. doi: 10.1109/EMBC.2012.6346703.

    PMID: 23366664BACKGROUND
  • Jeanne M, Clement C, De Jonckheere J, Logier R, Tavernier B. Variations of the analgesia nociception index during general anaesthesia for laparoscopic abdominal surgery. J Clin Monit Comput. 2012 Aug;26(4):289-94. doi: 10.1007/s10877-012-9354-0. Epub 2012 Mar 28.

    PMID: 22454275BACKGROUND
  • Robin F, Sesay M, Kolanek B, Pena D, Penna M, Morel-Locket L et al. The analgesia nociception index monitor (ANI) can detect indvertent vagal stimulation during surgery of cerebello-pontine angle tumors. Br J Anaesth 2013;111: https: // doi.org/10.1093/bja/el_10195

    BACKGROUND
  • Kommula LK, Bansal S, Umamaheswara Rao GS. Analgesia Nociception Index Monitoring During Supratentorial Craniotomy. J Neurosurg Anesthesiol. 2019 Jan;31(1):57-61. doi: 10.1097/ANA.0000000000000464.

    PMID: 28991059BACKGROUND
  • Theerth KA, Sriganesh K, Reddy KM, Chakrabarti D, Umamaheswara Rao GS. Analgesia Nociception Index-guided intraoperative fentanyl consumption and postoperative analgesia in patients receiving scalp block versus incision-site infiltration for craniotomy. Minerva Anestesiol. 2018 Dec;84(12):1361-1368. doi: 10.23736/S0375-9393.18.12837-9. Epub 2018 Jul 9.

    PMID: 29991223BACKGROUND
  • Fletcher D, Martinez V. Opioid-induced hyperalgesia in patients after surgery: a systematic review and a meta-analysis. Br J Anaesth. 2014 Jun;112(6):991-1004. doi: 10.1093/bja/aeu137.

    PMID: 24829420BACKGROUND
  • Galley HF. Editorial II: Solid as a ROC. Br J Anaesth. 2004 Nov;93(5):623-6. doi: 10.1093/bja/aeh247. No abstract available.

    PMID: 15472141BACKGROUND

MeSH Terms

Conditions

Bradycardia

Condition Hierarchy (Ancestors)

Arrhythmias, CardiacHeart DiseasesCardiovascular DiseasesPathologic ProcessesPathological Conditions, Signs and Symptoms

Study Officials

  • Musa Sesay, M.D

    ADNR, Neuroanesthesia and Critical Care, 33076 Bordeaux, France

    PRINCIPAL INVESTIGATOR
  • Matthieu Biais, M.D., PhD

    Neuroanesthesia and Critical Care, CHU University Bordeaux

    STUDY DIRECTOR
  • Karine Nouette-Gaulain, M.D., Ph.D

    Neuroanesthesia and Critical Care, CHU University Bordeaux

    STUDY CHAIR

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Principal Investigator

Study Record Dates

First Submitted

May 21, 2019

First Posted

June 7, 2019

Study Start

November 1, 2015

Primary Completion

November 1, 2017

Study Completion

November 1, 2017

Last Updated

June 7, 2019

Record last verified: 2019-06

Data Sharing

IPD Sharing
Will not share

Locations