Publications by authors named "L H Monsein"

In the first 2 weeks after subarachnoid hemorrhage caused by a ruptured aneurysm, 30-35 % of surviving patients treated with conservative nonoperative therapy experience rebleeding. This is fatal in 60-90 % of cases and leads to significant disability in 17-20 % of cases. A major factor for this poor outcome is thought to be the vasospasm that occurs in up to 38.

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The appearance of cognitive dysfunction after cardiac surgery in the absence of focal neurologic signs, a poorly understood but potentially devastating complication, almost certainly results from procedure-related brain injury. Confirmation of the occurrence of perioperative silent brain injury has been developed through advances in magnetic resonance imaging (MRI) techniques. These techniques detect new brain lesions in 25% to 50% of patients after both coronary artery bypass graft and valve surgery.

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Purpose: To report an unusual case of transient contrast encephalopathy arising after carotid artery stenting.

Case Report: An 82-year-old right-handed man with a recent history of transient ischemic events was admitted to the hospital for evaluation of carotid artery disease. During cerebral angiography, which identified a 90% right internal carotid artery stenosis, the patient received 25 mL of an ionic, low-osmolar contrast agent (ioxaglate) in each carotid artery.

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Background: A case is described in which an intraorbital hematoma was found to complicate recovery from attempted aneurysm clipping 5 days into the postoperative period. The etiology, management, and complication avoidance are discussed.

Case Description: Five days after attempted surgical clipping of an internal carotid artery aneurysm via a frontotemporal craniotomy with orbital osteotomy, a patient underwent coiling of the aneurysm.

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