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  • Title: Pre-protection re-haemorrhage following aneurysmal subarachnoid haemorrhage: Where are we now?
    Author: Davies BM, Chung KH, Dulhanty L, Galea J, Patel HC.
    Journal: Clin Neurol Neurosurg; 2015 Aug; 135():22-6. PubMed ID: 26005741.
    Abstract:
    BACKGROUND: Re-haemorrhage is a negative, prognostic predictor of outcome in aneurysmal subarachnoid haemorrhage (aSAH). The process of aSAH care has changed however, and most reports on re-haemorrhage are from a time when aneurysms were treated predominantly by open microneurosurgery. The current frequency and impact of re-haemorrhage on outcome in the 'post-ISAT' era is therefore unknown. The aim of this study was to review current outcome, risk factors and causes for inpatient re-haemorrhage in aSAH patients. METHOD: The departmental aSAH database was reviewed between Jan 2008 and March 2014 (N = 1008) to identify cases of re-haemorrhage. Re-haemorrhage was defined as inhospital deterioration in neurological status with CT confirmation of rebleeding. Binary logistic regression was used to (a) determine the impact of re-haemorrhage on outcome adjusted for age and injury severity and (b) to identify any independent predictors of its occurrence. RESULTS: Re-haemorrhage occurred in 55 (5.4%) of patients and most cases had occurred within 24h of ictus (32, 58.1%). Re-haemorrhage was an independent predictor of death (AOR 10.0, p < 0.0005, 95%CI 4.9, 20.2) and unfavourable outcome (AOR 5.8 p < 0.0005, 95%CI 2.4, 14.0). Only WFNS grade on admission was an independent predictor (AOR 1.7, p < 0.0005, 95%CI 1.4, 1.9) of re-haemorrhage. Of the patients who re-bled, in 20 there was no intention to treat due to severe brain injury and in the remainder, the majority occurred early (<24h) (19/35, 54%), or had complicated aneurysm morphology (10/35, 31%) which necessitated a delayed treatment strategy. CONCLUSIONS: Re-haemorrhage remains a poor prognostic predictor in aSAH and the grade of SAH is an independent risk factor. Earlier treatment of complex aneurysms could offer the most immediate improvements in its incidence.
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