Clinical trial NCT02684955: Non-invasive Neurological Evaluation During CPR
Official title: Non-invasive Neurological Evaluation During Cardiopulmonary Resuscitation for Out of Hospital Cardiac Arrest Patients Neuro-E-CPR Study
Study type: OBSERVATIONAL
Overall status: COMPLETED
Conditions: Cardiac Arrest
Keywords: cardiac arrest
near-infrared spectroscopy
automated infrared pupillometry
prognostication
Lead sponsor: University Hospital, Grenoble
Sponsor class: OTHER
First posted: 2016-02-18
Enrollment: 112
Sex: ALL
Minimum age (years): 18
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: no
Observational model: COHORT
Time perspective: PROSPECTIVE
Sampling method: PROBABILITY_SAMPLE
Study population: Out of Hospital cardiac arrest patient

Brief summary: Cardiac arrest remains a leading cause of death, currently affecting \>250,000 Europeans outside the hospital each year. Manual cardiopulmonary resuscitation (CPR) provides between 15 to 30 % of normal blood flow to the heart and brain. For out-of-hospital cardiac arrest, the return of spontaneous circulation (ROSC) is possible only for 20-40% of patients with trained resuscitation teams. However, only 5-10% of patients will survive with good neurological status. A good quality CPR, a short time before initiation of the resuscitation and a short delay before the first defibrillation have been associated with improved neurological outcome. Unfortunately it is currently impossible to obtain reliable information on the quality of the perfusion and oxygenation of organs during CPR. The current monitoring during CPR is limited to heart rhythm analysis, pulse rate evaluation and end tidal CO2 (EtCO2). The last one is the only parameter which have been linked with probability of ROSC and its value gives no indication of the long-term prognosis nor the neurological status.

Cerebral spectroscopy (near-infrared spectroscopy - NIRS) allows to measure with a noninvasive method the local oxygen saturation of the prefrontal cortex (rSO2), reflecting the balance between need and supply of brain oxygenation. This technique has been recently used in cardiac arrest showing a possible association between rSO2 measured during CPR and the occurrence of ROSC or survival. The quantitative measurement of the pupillary light reaction has been described to predict neurological outcome in the hospital for patient successfully reanimated after out-of-hospital cardiac arrest (OHCA). Recently, a feasibility study has shown that its use was also possible during CPR in the pre-hospital setting.

The investigators aim to study a composite prognostic factor combining quantitative rSO2 and automated pupillometry measured during CPR. The investigators hypothesized that the rate of survival with good neurologic outcome at 30 days will be lower in patients with rSO2 \<30% for more than 5 min and an absent pupillary reflex more than 5 min or decreasing during CPR .


Eligibility criteria: Inclusion Criteria:

* All adults with nontraumatic, out-of-hospital cardiac arrest

Exclusion Criteria:

* Traumatic cardiac arrest
* Patients who had achieved ROSC before inclusion patients with a do-not-attempt resuscitation order
* Patients \< 18 years old
* Subjects known to be pregnant or breastfeeding

Primary outcomes:
measure: Prognostic value of rSO2, pupillometry, bystander CPR and initial cardiac rhythm alone or in association for survival at hospital admission
timeFrame: Through out-of-hospital care, an average of 2 hours
Secondary outcomes:
measure: prognostic value of capnography alone or in association with primary outcomes parameters for survival at hospital admission
timeFrame: Through out-of-hospital care, an average of 2 hours
Other outcomes:
Locations:
city: Annecy
country: France
facility: SAMU 74
city: Grenoble
country: France
facility: SAMU 38
Study officials:
affiliation: Annecy Hospital
name: Dominique Savary, MD
role: PRINCIPAL_INVESTIGATOR
References:
citation: Levine RL, Wayne MA, Miller CC. End-tidal carbon dioxide and outcome of out-of-hospital cardiac arrest. N Engl J Med. 1997 Jul 31;337(5):301-6. doi: 10.1056/NEJM199707313370503.
citation: Storm C, Leithner C, Krannich A, Wutzler A, Ploner CJ, Trenkmann L, von Rheinbarben S, Schroeder T, Luckenbach F, Nee J. Regional cerebral oxygen saturation after cardiac arrest in 60 patients--a prospective outcome study. Resuscitation. 2014 Aug;85(8):1037-41. doi: 10.1016/j.resuscitation.2014.04.021. Epub 2014 Apr 30.
citation: Ito N, Nishiyama K, Callaway CW, Orita T, Hayashida K, Arimoto H, Abe M, Endo T, Murai A, Ishikura K, Yamada N, Mizobuchi M, Anan H, Okuchi K, Yasuda H, Mochizuki T, Tsujimura Y, Nakayama T, Hatanaka T, Nagao K; J-POP Registry Investigators. Noninvasive regional cerebral oxygen saturation for neurological prognostication of patients with out-of-hospital cardiac arrest: a prospective multicenter observational study. Resuscitation. 2014 Jun;85(6):778-84. doi: 10.1016/j.resuscitation.2014.02.012. Epub 2014 Mar 5.
citation: Singer AJ, Ahn A, Inigo-Santiago LA, Thode HC Jr, Henry MC, Parnia S. Cerebral oximetry levels during CPR are associated with return of spontaneous circulation following cardiac arrest: an observational study. Emerg Med J. 2015 May;32(5):353-6. doi: 10.1136/emermed-2013-203467. Epub 2014 Mar 24.
citation: Schewe JC, Thudium MO, Kappler J, Steinhagen F, Eichhorn L, Erdfelder F, Heister U, Ellerkmann R. Monitoring of cerebral oxygen saturation during resuscitation in out-of-hospital cardiac arrest: a feasibility study in a physician staffed emergency medical system. Scand J Trauma Resusc Emerg Med. 2014 Oct 5;22:58. doi: 10.1186/s13049-014-0058-y.
citation: Suys T, Bouzat P, Marques-Vidal P, Sala N, Payen JF, Rossetti AO, Oddo M. Automated quantitative pupillometry for the prognostication of coma after cardiac arrest. Neurocrit Care. 2014 Oct;21(2):300-8. doi: 10.1007/s12028-014-9981-z.
citation: Behrends M, Niemann CU, Larson MD. Infrared pupillometry to detect the light reflex during cardiopulmonary resuscitation: a case series. Resuscitation. 2012 Oct;83(10):1223-8. doi: 10.1016/j.resuscitation.2012.05.013. Epub 2012 May 30.