Subarachnoid hemorrhage screening
Subarachnoid Hemorrhage Microchapters
AHA/ASA Guidelines for the Management of Aneurysmal Subarachnoid Hemorrhage (2012)
Subarachnoid hemorrhage screening On the Web
American Roentgen Ray Society Images of Subarachnoid hemorrhage screening
First-degree relatives screening is recommend in individuals with a positive family history of subarachnid hemorrhage or cerebral aneurysm in more than two family members. However, screening is not recommend in individuals with only one affected first-degree relative. Additionally, screening is recommend in the patient with heritable conditions such as Autosomal dominant polycystic kidney disease (ADPKD), glucocorticoid remediable hyperaldosteronism (GRA), and connective tissue diseases. 
First degree relatives screening
The risk of having subarachnoid hemorrhage (SAH) is much higher in individuals with a positive family history of first degree relatives with cerebral aneurysm compare to the general population and aneurysms tend to rupture at a smaller size and younger age than sporadic aneurysms. This risk of aneurysm is also influenced by other risk factors such as cigarette smoking and hypertension. The mode of inheritance can be variable, with autosomal dominant, recessive, and multifactorial transmission.
- First-degree relatives screening is recommend in individuals with a positive family history of subarachnid hemorrhage or cerebral aneurysm in more than two family members.
- Screening is not recommend in individuals with only one affected first-degree relative.
Heritable conditions screening
- Screening is recommend in the patient with heritable conditions such as:
Time of screening
- Siblings often experience rupture in the same decade of life. It is not likely that individuals develop SAH at younger ages than previous generations
- Aneurysm rupture in ADPKD most often occurs before the age of 50 and in patients with poorly controlled hypertension
- MRA (identify aneurysms 3 to 5 mm or larger)
- CTA (miss aneurysms smaller than 3 mm, also may have false positive results)
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- Guidelines for the Management of Aneurysmal Subarachnoid Hemorrhage http://stroke.ahajournals.org/content/early/2012/05/03/STR.0b013e3182587839
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- Rasing I, Nieuwkamp DJ, Algra A, Rinkel GJ (2012). "Additional risk of hypertension and smoking for aneurysms in people with a family history of subarachnoid haemorrhage.". J Neurol Neurosurg Psychiatry. 83 (5): 541–2. PMID 22423116. doi:10.1136/jnnp-2011-301147.
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- van Gelder JM (2003). "Computed tomographic angiography for detecting cerebral aneurysms: implications of aneurysm size distribution for the sensitivity, specificity, and likelihood ratios.". Neurosurgery. 53 (3): 597–605; discussion 605–6. PMID 12943576.