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Peri-mesencephalic subarachnoid haemorrhage (PMSAH) is considered to be a clinically benign subset of subarachnoid haemorrhage (SAH). Cranial nerve palsies have been previously reported as rare sequelae of PMSAH. Herein, we report an unusual case of multiple cranial nerve palsies as a presenting feature of PMSAH and a review of the literature for cranial nerve palsies post-PMSAH.

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Background: Hyponatremia is common following subarachnoid hemorrhage (SAH) and is associated with vasospasm and delayed cerebral ischemia (DCI). Risk factors for post-SAH hyponatremia are poorly defined; however, selective serotonin reuptake inhibitors (SSRIs) and selective norepinephrine reuptake inhibitors (SNRIs) are associated with hyponatremia in non-SAH populations. This study assessed whether pre-admission SSRIs/SNRIs were associated with hyponatremia after SAH.

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Article Synopsis
  • Paraclinoid aneurysms are difficult to operate on due to their complex anatomy and resistance to standard techniques, but a method using the TCAR system can help with safer surgical procedures.
  • A case study describes a 33-year-old woman who underwent a challenging clip reconstruction of an ophthalmic aneurysm after unsuccessful coil embolization, employing retrograde arteriovenous shunting during surgery.
  • The TCAR system not only assisted in the procedure by softening the aneurysm but also allowed for real-time imaging, highlighting its potential advantages in treating similar aneurysms.
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Background: Various degrees of thrombosis have been reported in patients with giant aneurysms. However, small, unruptured aneurysms rarely resolve spontaneously. Herein, we report a case of a small unruptured aneurysm in the clinoid segment (C3) of the left internal carotid artery (ICA) that showed almost complete occlusion at the 1-year follow-up.

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Background: The aim of this study was to assess the diagnostic yield of follow-up investigations in aneurysm-negative subarachnoid hemorrhage (SAH) patients.

Methods: In 109 (25%) of 435 patients with SAH and initial negative digital subtraction angiography (DSA), the diagnostic yield of repeat DSA and magnetic resonance imaging (MRI) of the brain and craniocervical junction was reviewed.

Results: Of the 109 patients with an initial negative DSA, 51 (47%) had perimesencephalic (PM), 54 (50%) had nonperimesencephalic (NPM) blood distribution, and 4 (3.

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