1. Relative safety of intravenous digital subtraction angiography over other methods of carotid angiography and impact on clinical management of cerebrovascular disease
- Author
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R. Kerslake, Susan Barter, John M. Stevens, Andrea Schneidau, Clair Barber, and D. J. Thomas
- Subjects
medicine.medical_specialty ,medicine.medical_treatment ,Contrast Media ,Carotid endarterectomy ,Carotid angiography ,medicine ,Humans ,Radiology, Nuclear Medicine and imaging ,cardiovascular diseases ,Stroke ,medicine.diagnostic_test ,business.industry ,Incidence (epidemiology) ,Angiography, Digital Subtraction ,General Medicine ,Intravenous digital subtraction angiography ,Digital subtraction angiography ,medicine.disease ,Cerebral Angiography ,body regions ,Cerebrovascular Disorders ,Injections, Intravenous ,Angiography ,Radiology ,Complication ,business - Abstract
Data from a multicentre survey based on three London teaching hospitals on the relative safety and clinical utility of intravenous carotid digital subtraction angiography (DSA) over intra-arterial DSA and conventional carotid angiography are presented. The incidence of stroke during intra-arterial DSA was 0.7% (n = 538) and during conventional angiography was 0.8% (n = 780). The incidence of stroke during intravenous DSA was zero (n = 3710). When it constituted the initial investigation, intravenous DSA achieved a 93.8% replacement value over intra-arterial studies as a whole (n = 474) and 89% replacement value for patients having carotid endarterectomy (n = 99). It was also noted that the installation of DSA equipment at one unit coincided with a sixfold increase in the number of carotid angiographic examinations and an almost threefold increase in carotid endarterectomies.
- Published
- 1989
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