Oxygenation of the Cerebrum and Cooling During TAVI - Part I

NCT ID: NCT01759563

Last Updated: 2013-01-03

Study Results

Results pending

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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Recruitment Status

COMPLETED

Clinical Phase

PHASE3

Total Enrollment

6 participants

Study Classification

INTERVENTIONAL

Study Start Date

2012-07-31

Study Completion Date

2012-12-31

Brief Summary

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Assessment of safety and feasibility of using a nasopharyngeal cooling technique to provide targeted brain cooling during percutaneous implantation of aortic valves. Was it possible to obtain brain temperatures below 34° within a reasonable time interval (max of 1hr) without delaying the procedure of valve implantation.

Detailed Description

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OCCTAVI-I Protocol

6 patients selected for Transcutaneous Aortic Valve Implantation (TAVI)-procedure will be subjected to intra-operative transnasal cooling (RhinoChill) ; cooling will be started after induction of anesthesia until tympanic temperature achieves 34° (cooling will be continued until 33°C of tympanic temperature, below 33°C active cooling will be stopped)

No intra-aortic catheter will be inserted before tympanic temperature reaches 34°

The aim of this study is to test the safety (as referring to routinely used neuromonitoring : ForeSight cerebral tissue oxygen saturation (SctO2) monitoring; and as referring to cardiovascular stability : blood pressure \& heartrate) and feasibility (as referring to temperature characteristics) of brain cooling during TAVI (cerebral (or tympanic) cooling rate, differential tympanic-rectal cooling rate, rectal cooling rate, time needed to obtain tympanic temperature below 34°)

Patients will be monitored with FORE-SIGHT cerebral oximeter (regional cerebral oxygen saturation, sensors placed on patient's forehead) and BIS VISTA (bilateral continuousEEG).

Tympanic temperature will be measured every 5 minutes while oesophageal and blood temperature will be continuously measured.

* Neuromonitoring (Fore-Sight, Bispectral Index (BIS) Vista) will be started before induction of anesthesia and cooling
* Transnasal cooling will be started after induction of anesthesia until a target tympanic temperature of 34°C
* Core temperature will not be monitored by esophageal (caveat interaction TEE probe), but by rectal and blood temperature
* TAVI-procedure will be started at a tympanic temperature of 34°C
* Arterial CO2 tension (PaCO2) will be checked every 30 minutes intra-operatively (target=normocapnia) by arterial blood gas analysis to maintain strict normocapnia
* and the end of the TAVI-procedure, patient will be rewarmed at a max rate of 0.8°/h by total body bair hugger
* when patient reaches tympanic and systemic (rectal) temperature of 35.5°C, extubation can be performed

Conditions

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TAVI Targeted Brain Cooling Neuroprotection

Study Design

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Allocation Method

NA

Intervention Model

SINGLE_GROUP

Primary Study Purpose

PREVENTION

Blinding Strategy

NONE

Study Groups

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single arm study

Group Type OTHER

nasopharyngeal targeted brain cooling

Intervention Type DEVICE

Interventions

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nasopharyngeal targeted brain cooling

Intervention Type DEVICE

Other Intervention Names

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RhinoChill Device, BeneChill company

Eligibility Criteria

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Inclusion Criteria

* pts eligible for TAVI interventions

Exclusion Criteria

* urgent intervention
Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Hasselt University

OTHER

Sponsor Role lead

Responsible Party

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Prof Dr Cathy De Deyne

Prof Dr Jo Dens

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Cathy De Deyne, Md, PhD

Role: PRINCIPAL_INVESTIGATOR

Ziekenhuis Oost-Limburg

Locations

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Ziekenhuis Oost-Limburg

Genk, , Belgium

Site Status

Countries

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Belgium

References

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Castren M, Nordberg P, Svensson L, Taccone F, Vincent JL, Desruelles D, Eichwede F, Mols P, Schwab T, Vergnion M, Storm C, Pesenti A, Pachl J, Guerisse F, Elste T, Roessler M, Fritz H, Durnez P, Busch HJ, Inderbitzen B, Barbut D. Intra-arrest transnasal evaporative cooling: a randomized, prehospital, multicenter study (PRINCE: Pre-ROSC IntraNasal Cooling Effectiveness). Circulation. 2010 Aug 17;122(7):729-36. doi: 10.1161/CIRCULATIONAHA.109.931691. Epub 2010 Aug 2.

Reference Type BACKGROUND
PMID: 20679548 (View on PubMed)

Other Identifiers

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COBRA Research Group

Identifier Type: OTHER

Identifier Source: secondary_id

OCCTAVI-I

Identifier Type: -

Identifier Source: org_study_id

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