World Neurosurg
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The endoscopic transsphenoidal approach has become widely used for pituitary and extended skull base operations. Intraoperative conversion to a microscopic approach may be an important option in selected cases. We aim to characterize the operative situations in which such conversion occurred and facilitated the procedure. ⋯ Although endoscopic transsphenoidal surgery provides superior visualization in most patients, conversion to a microscopic or endoscopic-assisted approach may provide essential visualization in selected patients. This may be especially true in patients undergoing reoperation and patients with acromegaly or Cushing's disease. Trainees learning the endoscopic transsphenoidal approach should become familiar with the benefits and limitations of the various transsphenoidal approaches.
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The significance of medial and lateral opticocarotid recesses and the planum sphenoidale region in skull base pathologies for the transsphenoidal-transplanum approach were evaluated. ⋯ The lateral opticocarotid recess is a reliable and persistent indicator for extended transsphenoidal surgery. To approach the opticocarotid region near the internal carotid artery and optic nerve, a careful dissection is needed to minimize surgical injuries to the optic nerve and carotid artery. Other factors determining a reliable bone resection are the anteroposterior length of the planum sphenoidale and the distance and width of the angle between optic nerves. Attention should be given to individual anatomic variations of the region when planning and performing transsphenoidal-transplanum surgery.
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Although acute cocaine use has been correlated with aneurysmal subarachnoid hemorrhage, its effect on vasospasm and outcome is controversial. We investigated the effect of acute cocaine use on response to vasospasm treatment and neurologic outcome in patients with aneurysmal subarachnoid hemorrhage. ⋯ There is no significant difference in incidence of symptomatic vasospasm or neurologic outcome between cocaine users and nonusers. The severity of the vasospasm and the response to treatment, as indicated by the number of vasospasm interventions, did not differ between the two groups.
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Neurosurgery, in one form or another, has a long tradition in Kenya. Early skull trepanations in Kenya were reported by previous studies, which reveal that these procedures have a long tradition, being passed down from generation to generation. Modern neurosurgical development in Kenya has its origins in the late 1940s when the first elective neurosurgical procedures were performed by Dr. ⋯ Formal neurosurgery developed from these initial steps, with the arrival of the first trained specialist, Dr. Renato Ruberti, whose pioneering efforts resulted in the founding of the Neurological Society of Kenya (NSK), the Pan African Association of Neurological Sciences (PAANS), and the African Federation of Neurosurgical Societies (AFNS). The last quarter of the 20th century has seen the progress of neurosurgery reach its present respectable levels, with dedicated and well-trained Kenyan neurosurgical specialists focusing not only on its practice but diligently pursuing its development.