Hoppu S

Olkkola KT

Sainio M

Tenhunen J

Directory of Open Access Journals

Scandinavian Journal of Trauma Resuscitation and Emergency Medicine

Quality of CPR has little impact on cerebral oximetry during in-hospital cardiac arrest – preliminary data from three case reports

M Sainio

S Hoppu

KT Olkkola

J Tenhunen

Crossref

Springer - Publisher Connector

BioMed Central
Page 1 of 1
(page number not for citation purposes)
Scandinavian Journal of Trauma, 
Resuscitation and Emergency Medicine
Open AccessOral presentation
Quality of CPR has little impact on cerebral oximetry during 
in-hospital cardiac arrest – preliminary data from three case reports
M Sainio*, S Hoppu, KT Olkkola and J Tenhunen
Address: Department of Anaesthesia, University of Helsinki, Finland
Email: M Sainio* - mjsain@utu.fi
* Corresponding author    
Introduction
The quality of CPR is associated with survival [1]. The goal
of CPR is to provide sufficient cerebral blood flow (CBF).
This prospective and observational study was planned to
evaluate if the quality of CPR is correlated to a surrogate
marker for CBF as estimated by regional cerebrovascular
oxygen saturation (rSO2).
Methods
As a preliminary report, a case series of three cardiac arrest
patients is presented herein. We used a defibrillator with
a quality CPR-technology (Philips, HeartStart MRx Q-
CPR™), which evaluates resuscitation from compression
to compression. rSO2 was assessed simultaneously with a
near-infrared spectroscopy device (Invos, Somanetics,
Troy, MI).
Results
Case 1
75 years old male was resuscitated from asystole. The aver-
age compression frequency was 96/min and depth 56
mm. Only 1% of compressions were committed with
incomplete release from chest and flow time was 100%.
The values for rSO2 were 15–18%, and quality of CPR
showed no reflections to rSO2. A minor increase of rSO2
was observed after ROSC.
Case 2
81 years old female was resuscitated from PEA. Compres-
sion frequency was 103/min and depth 53 mm, 1% with
incomplete release, and flow time 84%. There was an
almost immediate increase in rSO2 from 25% to 38%.
She achieved ROSC after 11 min where after rSO2 rose to
67%. This patient is a secondary survivor.
Case 3
72-yr old female was resuscitated 17 min from asystole.
Average compression frequency was 109/min, and depth
44 mm. 93% of compressions were adequate in depth but
10% of had an incomplete release. Flow time was 90%.
During the entire procedure the rSO2 was 15%, despite
the relatively good quality of CPR. No ROSC was
achieved.
Conclusion
The only survivor had markedly higher rSO2 values than
the non-survivors but, on the average, there was no corre-
lation between the quality of CPR and rSO2. Other factors
than just the quality of CPR are obviously of major impor-
tance for the restoration of cerebral blood flow.
References
1. Abella BS, Sandbo N, Vassilatos P, et al.: Chest compression rates
during cardiopulmonary resuscitation are suboptimal: a pro-
spective study during in-hospital cardiac arrest.  Circulation
2005, 111:428-434.
from Scandinavian Update on Trauma, Resuscitation and Emergency Medicine 2009
Stavanger, Norway. 23 – 25 April 2009
Published: 28 August 2009
Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine 2009, 17(Suppl 3):O5 doi:10.1186/1757-7241-17-S3-O5
<supplement> <title> <p>Scandinavian Update on Trauma, Resuscitation and Emergency Medicine 2009</p> </title> <editor>Hans Morten Lossius, Eldar Søreide and Kjetil G Ringdal</editor> <sponsor> <note>Publication of this supplement was supported by Akuttjournalen Arena AS</note> </sponsor> <note>Meeting abstracts – A single PDF containing all abstracts in this Supplement is available <a href="http://www.biomedcentral.com/content/files/pdf/1757-7241-17-S3-full.pdf">here</a>.</note> <url>http://www.biomedcentral.com/content/pdf/1757-7241-17-S3-info.pdf</url> </supplement>
This abstract is available from: http://www.sjtrem.com/content/17/S3/O5
© 2009 Sainio et al; licensee BioMed Central Ltd. 


Quality of CPR has little impact on cerebral oximetry during in-hospital cardiac arrest – preliminary data from three case reports

Abstract

Similar works

Full text

Available Versions

Directory of Open Access Journals

Crossref

Springer - Publisher Connector