Subarachnoid hemorrhage: aneurysm detection and preoperative evaluation with CT angiography.

Velthuis, Birgitta K.; Rinkel, Gabriël J.E.; Ramos, L. M. P.; Witkamp, Theo D.; Sprenkel, Jan Willem Berkelbach van der; Vandertop, W. P.; Leeuwen, Maarten S. van

doi:10.1148/radiology.208.2.9680571

Cited by 148 publications

(57 citation statements)

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“…However, this seems unlikely because the dominant contribution of aneurysmal SAH in population studies of SAH across many countries, and over time, has remained consistent. [25][26][27][28][29][30] Given these limitations, it is important to acknowledge that our results are discordant from an earlier United Kingdom audit of SAH outcomes 15 undertaken during the transition from an era of surgical clipping to one of mixed modalities of treatment, which showed no effect of volume on mortality, outcome, or case-mix adjusted outcome. However, the United Kingdom SAH audit 15 varied from our study in several features.…”

Section: March 2013contrasting

confidence: 71%

Effects of Institutional Caseload of Subarachnoid Hemorrhage on Mortality

McNeill

English

Borg

et al. 2013

Stroke

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Background and Purpose-Procedures requiring specific skill sets often have been shown to depend on institutional volume, that is, centers receiving a higher volume observe better outcomes in those patients. This relationship recently has been shown to exist for subarachnoid hemorrhage(SAH) patients in a large study in the United States. We aim to examine this relationship for SAH patients in England, restricting analysis to specialist neurosurgical units. Methods-Aggregate counts of patients with SAH in 25 specialist neuroscience centers in England, from 2005 to 2011, were obtained from the Hospital Episode Statistics database maintained by the National Health Service Information Center. These data were linked with national mortality statistics to obtain counts of deaths. Poisson regression was used to investigate the relationship between institutional caseload of SAH and 6-month mortality from any cause. Six-month mortality rates and mortality ratios were computed. Results-Annual institutional caseload of admissions with SAH was inversely related to 6-month mortality (P=0.009; r 2 =0.26). Each 100-patient increase in annual patient volume was associated with a 24% reduction in mortality (adjusted mortality ratio, 0.76; confidence interval, 0.67-0.87). This relationship was consistent across the entire range of annual institutional caseloads examined (29-367 cases for the lowest and highest volumes seen in a single center in 1 year). Conclusions-Our

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Section: March 2013contrasting

confidence: 71%

Effects of Institutional Caseload of Subarachnoid Hemorrhage on Mortality

McNeill

English

Borg

et al. 2013

Stroke

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“…Previous studies reported that aneurysms in certain locations such as posterior communicating artery aneurysms, might be missed by CTA (2,27,33). The poor sensitivity in detecting posterior communicating artery aneurysms in these studies was attributed to their small size and their similar morphological characteristics with infindubular dilatations.…”

Section: Discussionmentioning

confidence: 85%

Diagnostic Value Of 64-slice Cta In Detection Of Intracranial Aneurysm In Patients With Sah And Comparison Of The Cta Results With 2d-dsa And Intraoparetaive Findings

Ergün¹,

Haberal²,

Koşar³

et al. 2009

TUTFD

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“…Some studies evaluating CTA in the management of intracranial aneurysms have reported sensitivities ranging from 77% and 100% and specificities ranging from 79% and 100% [2,23]. Among aneurysms detected on CTA and then undergoing surgery, 100% correlation was observed between CTA and catheter angiography [26]. CTA, as a less invasive alternative to cerebral angiography, is a widely accepted method for detection and characterization of cerebral aneurysms when planning surgical intervention [27].…”

Section: Preoperative Planningmentioning

confidence: 99%