Clinical studySubarachnoid haemorrhage of unknown cause: Clinical, neuroradiological and evolutive aspects
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Cited by (15)
Delayed Cerebral Ischemia and Vasospasm After Spontaneous Angiogram-Negative Subarachnoid Hemorrhage: An Updated Meta-Analysis
2018, World NeurosurgeryCitation Excerpt :Nevertheless, differences of inclusion criteria may bias the results. The probability of finding bleeding focus by repeated angiography was 0%–37% in patients with angiogram-negative SAH.7,16,28 Therefore, we further analyzed the clinical outcomes according to the inclusion criteria, in particular, studies that defined angiogram-negative SAH by angiography repeated at least twice or CT angiography follow-up.
The Prevalence of Cerebrovascular Abnormalities Detected in Various Diagnostic Subgroups of Spontaneous Subarachnoid Hemorrhage in the Modern Era
2018, World NeurosurgeryCitation Excerpt :Importantly, 24.1% of patients in our study had SAH with no detectable vascular abnormalities. This is higher than the 10%–15% range that is traditionally quoted as the proportion of angiogram-negative SAH.4,9-11,23 This implies that 1 in 4 patients with confirmed SAH could potentially have an excellent prognosis compared with the previously held proportion of 1 in 8 patients.
Angiogram negative subarachnoid haemorrhage: Outcomes and the role of repeat angiography
2013, Clinical Neurology and NeurosurgeryCitation Excerpt :Magnetic resonance angiography (MRA) has increasingly replaced catheter angiography in the evaluation of angiogram-negative SAH, as advances in angiographic algorithms and spatial resolution have improved diagnostic accuracy [9,10]. Multiple studies [11–24] have been carried out over the past three decades to assess the utility of repeat catheter angiography. In our centre we perform repeat cerebral angiography only in selected cases where there is a strong suspicion of aneurysmal SAH, after discussion in a multidisciplinary team meeting.
Idiopathic subarachnoid hemorrhage: A multicentre series of 220 patients
2010, Neurocirugia