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Cormac O. Maher and Fraser C. Henderson

Key JA: Low back pain as seen in an orthapedic clinic. Am J Med Sci 168: 526–534, 1924 24. Kremer E , Atkinson JH : Pain language as a measure of affect in chronic pain patients , in Melzack R (ed): Pain Measurement and Assessment. New York : Raven Press , 1983 , pp 119 – 127 Kremer E, Atkinson JH: Pain language as a measure of affect in chronic pain patients, in Melzack R (ed): Pain Measurement and Assessment. New York: Raven Press, 1983, pp 119–127 25. Kunogi J , Hasue M

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Jonathan A. Friedman, Fredric B. Meyer, Douglas A. Nichols, Robert J. Coffey, L. Nelson Hopkins, Cormac O. Maher, Irene D. Meissner and Bruce E. Pollock

factors have been implicated in this process. 17 One possible mechanism is that chronic venous hypertension may dilate the venous end of dural capillaries, ultimately causing ectatic dilation of the entire capillary network and precipitating direct arteriovenous connections. 11, 28 This is analogous to the formation of mucosal arteriovenous malformations in the gastrointestinal tract, which are thought to occur by a similar mechanism. 5 Venous hypertension is a consequence of DAVFs that may worsen as the flow through the fistula increases. If venous hypertension

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Cormac O. Maher, Nicholas M. Wetjen, Jonathan A. Friedman and Fredric B. Meyer

angiographically defined  risks medical risk factors angina pectoris, myocardial infarction of <6 mos  duration, congestive heart failure, severe obesity,  chronic obstructive pulmonary disease, age >70  yrs neurological factors progressive neurological deficit, deficit of <24 hrs  duration, frequent daily TIAs, multiple cerebral  infarctions w/ deficits angiographic factors occlusion of contralat ICA, ICA siphon stenosis,  evidence of a soft thrombus from an ulcerative  lesion

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Cormac O. Maher, Robert E. Anderson, Heidi S. Martin, Robyn L. McClelland and Fredric B. Meyer

the expression of IL-6; this expression peaks hours after IL-1β administration. 64 Furthermore, it is well established that IL-6 is a potent vasoconstrictor, 56 even over short time intervals. The relationship between the direct effect of IL-1β on CBF and the effect of downstream cytokines such as IL-6 on CBF are not well understood. Given these concerns, this experiment was designed to study the effects of long-term IL-1β use on CBF. The aim was to examine this effect in healthy rats as well as in those subjected to chronic global hypoperfusion. To control for

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Aaron A. Cohen-Gadol, Brian V. Nahed, Jennifer R. Voorhees, Cormac O. Maher and Dennis D. Spencer

hydrocephalus following closure of myelomeningoceles dampened clinicians' enthusiasm for this treatment for the next 50 years. The introduction of successful CSF diversionary techniques in the 1950s substantially eliminated this concern. 7 The current reduction in the extent of morbidity among patients born with myelomeningoceles may also reflect improved neonatal care and improvements in the management of chronic disabilities associated with these lesions such as sphincter dysfunction. These advances have shaped the current status of our treatment of myelomeningoceles

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Very low pressure hydrocephalus

Report of two cases

Michelle J. Clarke, Cormac O. Maher, Georgia Nothdurft and Fredric Meyer

spontaneously; she remained nonverbal. This condition was clearly worse than that observed during the examination when the negative-pressure EVD had been in place. Case 2 History This 40-year-old woman was involved in a minor motor vehicle accident 8 years before admission to our hospital. Approximately 1 year later, she experienced chronic daily headaches and bilateral lower-extremity numbness and tingling. Normal-pressure hydrocephalus was diagnosed at another institution, and a shunt was placed, which resulted in apparent improvement. During the following 6 years

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Wajd N. Al-Holou, Edward A. O'Hara, Aaron A. Cohen-Gadol and Cormac O. Maher

Sutherland et al. 74 described the autopsies of 2 children: 1 child 14 months of age with bilateral SDHs, recurrent long bone fractures, and basilar artery thrombosis; and another child 24 months of age with bilateral SDHs, soft tissue swellings, SDH of the spinal cord, and subconjunctival hemorrhages. Sutherland and colleagues 74 attributed these findings to scurvy. 67 In 1898 Herter 34 described 2 infants with “chronic internal pachymeningitis”; however, he was unable to specify an etiology. The German physician Heinrich Finkelstein 21 published several successive

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Cormac O. Maher, Stuart B. Bauer, Liliana Goumnerova, Mark R. Proctor, Joseph R. Madsen and R. Michael Scott

function, either clinically or on the basis of urodynamic testing preoperatively. Chronic urological symptoms were present in most of our patients. Ten (77%) required clean intermittent catheterization (CIC) prior to the repeat untethering operation. Each of these children continued their CIC regimen postoperatively. The 3 individuals who did not require CIC preoperatively maintained their ability to void without assistance postoperatively. TABLE 1: Improvement in lower urinary tract symptoms versus results of postoperative urodynamic evaluation in patients

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Wajd N. Al-Holou, Andrew Y. Yew, Zackary E. Boomsaad, Hugh J. L. Garton, Karin M. Muraszko and Cormac O. Maher

Di Rocco C , Tamburrini G , Caldarelli M , Velardi F , Santini P : Prolonged ICP monitoring in Sylvian arachnoid cysts . Surg Neurol 60 : 211 – 218 , 2003 8 Di Rocco C , Velardi F : Acquired Chiari type I malformation managed by supratentorial cranial enlargement . Childs Nerv Syst 19 : 800 – 807 , 2003 9 Domenicucci M , Russo N , Giugni E , Pierallini A : Relationship between supratentorial arachnoid cyst and chronic subdural hematoma: neuroradiological evidence and surgical treatment. Clinical article . J Neurosurg

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Oral Presentations

2010 AANS Annual Meeting Philadelphia, Pennsylvania May 1–5, 2010

array transducer is operated using a 3-Tesla MR scanner. During the energy delivery, anatomical and thermal images are acquired in real time to support clinical decision making. The method has been applied in a feasibility study to perform central lateral thalamotomies (CLTs) in patients suffering from chronic neuropathic pain. The CLT application is based on a detailed physiopathological thalamocortical concept. Methods/Results: In 10 patients, targets for ablations of 3-5mm in diameter were selected in the posterior part of the central lateral thalamic nucleus