Document Detail

Clinical and cardiac features of patients with subarachnoid haemorrhage presenting with out-of-hospital cardiac arrest.
MedLine Citation:
PMID:  21775044     Owner:  NLM     Status:  Publisher    
BACKGROUND: Subarachnoid haemorrhage (SAH) is known as one of the aetiologies of out-of-hospital cardiac arrest (OHCA). However, the mechanisms of circulatory collapse in these patients have remained unclear. METHODS AND RESULTS: We examined 244 consecutive OHCA patients transferred to our emergency department. Head computed tomography was performed on all patients and revealed the existence of SAH in 14 patients (5.9%, 10 females). Among these, sudden collapse was witnessed in 7 patients (50%). On their initial cardiac rhythm, all 14 patients showed asystole or pulseless electrical activity, but no ventricular fibrillation (VF). Return of spontaneous circulation (ROSC) was obtained in 10 of the 14 patients (14.9% of all ROSC patients) although all resuscitated patients died later. The ROSC rate in patients with SAH (71%) was significantly higher than that of patients with either other types of intracranial haemorrhage (25%, n=2/8) or presumed cardiovascular aetiologies (22%, n=23/101) (p<0.01). On electrocardiograms, ST-T abnormalities and/or QT prolongation were found in all 10 resuscitated patients. Despite their electrocardiographic abnormalities, only 3 patients showed echocardiographic abnormalities. CONCLUSIONS: The frequency of SAH in patients with all causes of OHCA was about 6%, and in resuscitated patients was about 15%. The initial cardiac rhythm revealed no VF even though half had a witnessed arrest. A high ROSC rate was observed in patients with SAH, although none survived to hospital discharge.
Wataru Mitsuma; Masahiro Ito; Makoto Kodama; Hiroki Takano; Makoto Tomita; Naoki Saito; Hiroshi Oya; Nobuo Sato; Satomi Ohashi; Hidenori Kinoshita; Junichiro James Kazama; Tadayuki Honda; Hiroshi Endoh; Yoshifusa Aizawa
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-7-19
Journal Detail:
Title:  Resuscitation     Volume:  -     ISSN:  1873-1570     ISO Abbreviation:  -     Publication Date:  2011 Jul 
Date Detail:
Created Date:  2011-7-21     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0332173     Medline TA:  Resuscitation     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2011. Published by Elsevier Ireland Ltd.
Division of Cardiology, Niigata University Graduate School of Medical and Dental Sciences, Japan; Advanced Disaster Medical & Emergency Critical Care Center, Niigata University Graduate School of Medical and Dental Hospital, Japan.
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