- Poster presentation
- Open Access
Should we screen for intracranial aneurysms (IAs) in systemic hypertension at the time of cardiac magnetic resonance (CMR)?
© Rodrigues et al; licensee BioMed Central Ltd. 2015
- Published: 3 February 2015
- Cardiac Magnetic Resonance
- Left Ventricular Mass
- Intracranial Aneurysm
- Systemic Hypertension
- Governance Arrangement
IAs are detected in 2.3% of adults. Systemic hypertension is a risk factor. Screening for IA in certain high-risk groups, such as patients with coarctation of the aorta, has been discussed in international guidelines. Patients with coarctation often have concomitant systemic hypertension. Moreover, the prevalence of hypertension in patients with coarctation and IA is significantly higher than those without IA. It is uncertain whether hypertension alone represents a sufficient risk factor to prompt screening for IAs.
Consecutive patients referred from our tertiary hypertension clinic underwent comprehensive magnetic resonance assessment including CMR and 3D time-of-flight MRA imaging at 1.5T. The study was conducted in accordance with The Governance Arrangements for Research Ethics Committees. Cerebral MRAs were double reported by a blinded Neuroradiologist. Demographic data, including presentation office systolic (SBP) and diastolic blood pressures (DBP), aneurysm data and CMR-derived left ventricular mass (LVM) indexed to body surface area, age and gender were recorded. Continuous variables were compared by Student t tests and categoric variables by Fisher exact test (p<0.05 = significant).
Details of aneurysm and patient demographics.
Site of aneurysm
Right ICA bifurcation
Right distal ICA
The prevalence of IA in this cohort is significantly higher than the general population. Subgroup analysis failed to identify particularly high-risk groups within the hypertension cohort studied. All aneurysms detected were small and managed conservatively, consequently the clinical benefit of routine screening for IAs at the time of CMR in hypertensive patients remains unanswered.
NIHR Cardiovascular Biomedical Research Unit, Bristol Heart Institute.
JCLR: Clinical Society of Bath Postgraduate Research Bursary.
ECH: BHF grant IBSRF FS/11/1/28400.
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