Articles: cations.
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Journal of neurosurgery · May 2008
Natural history of unruptured intracranial aneurysms: probability of and risk factors for aneurysm rupture.
The authors conducted a study to investigate the long-term natural history of unruptured intracranial aneurysms and the predictive risk factors determining subsequent rupture in a patient population in which surgical selection of cases was not performed. ⋯ Cigarette smoking, size of the unruptured intracranial aneurysm, and age, inversely, are important factors determining risk for subsequent aneurysm rupture. The authors conclude that such unruptured aneurysms should be surgically treated regardless of their size and of a patient's smoking status, especially in young and middle-aged adults, if this is technically possible and if the patient's concurrent diseases are not contraindications. Cessation of smoking may also be a good alternative to surgery in older patients with small-sized aneurysms.
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J. Cardiothorac. Vasc. Anesth. · Mar 2008
WITHDRAWN: Retrocardiac Sponge-Induced Hemodynamic Instability in the Postcardiopulmonary Bypass Period: Detection by Transesophageal Echocardiography.
The Publisher regrets that this article is an accidental duplication of an article that has already been published, doi:10.1053/j.jvca.2008.11.012. The duplicate article has therefore been withdrawn. The full Elsevier Policy on Article Withdrawal can be found at http://www.elsevier.com/locate/withdrawalpolicy.
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We sought to assess the value of adjusting shunt valve opening pressure, complications, and outcomes with the use of an adjustable shunt valve in the treatment of patients with normal-pressure hydrocephalus (NPH). ⋯ Noninvasive, particularly consecutive, minor or single larger adjustments to the valve opening pressure can further improve outcome in patients with NPH who undergo shunting.
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Relationships between industry and neurosurgeons engaged in both clinical practice and research have become increasingly complicated due to increased utilization of expensive devices in day-to-day neurosurgical practice. The Journal of Neurosurgery Publishing Group (JNSPG) has always had a policy of demanding open disclosure of any real, potential, or even perceived conflict of interest by authors submitting scientific manuscripts. ⋯ In addition, we felt that such a policy should be extended to all reviewers of articles submitted for publication to JNSPG journals-both members of the editorial boards and ad hoc reviewers. To clarify, extend, and specify the JNSPG's policy in this respect, the editor and editorial boards developed a task force on "Conflict of Interest." The task force, after considerable discussion with the full editorial boards, developed the following Conflict of Interest policy as well as the forms that submitting authors, editorial board members, and other reviewers are now required to complete.
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None of previous studies had simultaneously analyzed the K(+), Na(+), Mg(2+), and Ca(2+) contents in human skeletal muscle. We examined extensively and simultaneously the levels of all these cations and examined water content in vastus lateralis and pectoralis major muscles in 30 northeastern Thai men who were apparently healthy but died from an accident. Specimen collection was performed within 6 h of death. ⋯ However, K(+) and Mg(2+) had the negative correlation with Na(+) and Ca(2+). Histopathologic examination showed no change in the KD muscles, whereas 29% (2 of 7) of the KD kidneys had vacuolization in proximal renal tubular cells. Our study not only provided the descriptive data but also implied the balance or homeostasis of these monovalent and divalent cations in their muscle pools.