2008
DOI: 10.1161/strokeaha.107.503151
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Thunderclap Headache With Normal CT and Lumbar Puncture

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Cited by 18 publications
(14 citation statements)
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References 12 publications
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“…[1,4,6] Also some retrospective surveys of patients with subarachnoid haemorrhage suggest that minor episodes with sudden headache (warning leaks) may precede rupture of an aneurysm, and that early recognition and treatment might lead to improved outcome. [7] In different studies the mechanisms underlying TCH due to unruptured aneurysms were diffuse, multifocal and segmental cerebral vasospasm in the absence of haemorrhage, morphologic changes like stretching, expansion, dissection, [8] local thrombosis in the wall [9] and limited leakage of blood which implies that partial rupture has occurred in to the subarachnoid space. [6,10] …”
Section: Pain a Rimentioning
confidence: 99%
“…[1,4,6] Also some retrospective surveys of patients with subarachnoid haemorrhage suggest that minor episodes with sudden headache (warning leaks) may precede rupture of an aneurysm, and that early recognition and treatment might lead to improved outcome. [7] In different studies the mechanisms underlying TCH due to unruptured aneurysms were diffuse, multifocal and segmental cerebral vasospasm in the absence of haemorrhage, morphologic changes like stretching, expansion, dissection, [8] local thrombosis in the wall [9] and limited leakage of blood which implies that partial rupture has occurred in to the subarachnoid space. [6,10] …”
Section: Pain a Rimentioning
confidence: 99%
“…If the CT will be negative for expansive process and intracranial hypertension signs it is necessary made a lumbar puncture. 47 If the cerebrospinal fluid (CSF) has blood spots, it should be immediately centrifuged. A yellow color supernate, known as xantocromia, is suggesting a subarachnoid hemorrhage.…”
Section: Thunderclap Headachementioning
confidence: 99%
“…High CSF pressure could suggest cerebral venous thrombosis or intracranial hypertension while a low CSF pressure could specify intracranial hypotension. 47 Negative CT does not keep out the subarachnoid hemorrhage. CT is negative for 2% of cases in the first 12 h from the onset; in addition it is negative for 10% of cases in the first 24 h and for 50% of cases in the next 5 days.…”
Section: Thunderclap Headachementioning
confidence: 99%
“…1 The differential diagnosis includes but is not limited to subarachnoid hemorrhage (SAH), cerebral venous sinus thrombosis, cervical artery dissection, and pituitary apoplexy. [2][3][4] Current clinical practice and major print and online emergency medicine textbooks suggest that a negative computed tomographic (CT) head scan combined with a negative lumbar puncture (LP) result are adequate to rule out SAH in patients with acute headache presenting to the emergency department (ED). [5][6][7][8] Several studies support this practice; however, all of these studies suffered from a small sample size (71, 14, 18, 137, and 93 patients, respectively; N 5 333).…”
Section: Introductionmentioning
confidence: 99%