Publications by authors named "K Okada"

Objective: Aneurysmal subarachnoid hemorrhage (SAH) is associated with high morbidity and mortality rates. In particular, functional outcomes of SAH caused by large or giant (≥ 10 mm) ruptured intracranial aneurysms are worsened by high procedure-related complication rates. However, studies describing the risk factors for poor functional outcomes specific to ruptured large/giant aneurysms are sparse.

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Aim: To determine the effect of long-term tobramycin (TOB) inhalation therapy on recurrent pneumonia among ventilator-dependent children with profound neurological disabilities.

Methods: TOB inhalation was performed in eight series of trials in seven ventilator-dependent children who had intratracheal Pseudomonas aeruginosa and suffered from recurrent pneumonia. Their age at the initiation of therapy was 68 ± 50 months (mean ± standard deviation), whereas the duration of treatment was 30 ± 22 months.

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Background & Aims: In older patients undergoing cardiac surgery, physical function is a critical determinant of postoperative outcomes. Beta-hydroxy-beta-methylbutyrate (HMB) supplementation has been shown to promote muscle protein anabolism and inhibit catabolism, thereby preventing muscle weakness. However, its efficacy in older patients undergoing cardiac surgery remains unknown.

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In this study, we theoretically examined the mechanism of aromaticity induced in closely stacked cofacial π-dimers of 4π antiaromatic molecules, which is called stacked-ring aromaticity, in terms of the effective number of π-electrons ( ) and Baird's rule. High-precision quantum chemical calculations combined with a multi-configurational wavefunction analysis revealed that double-triplet [(TT)] and intermolecular charge-transfer (CT) electron configurations mix substantially in the ground state wavefunctions of cyclobutadiene and Ni(ii) norcorrole dimer models at small stacking distance (). Since the T configuration gives rise to two unpaired electrons, the remaining 4 - 2 π electrons still participate in the intramolecular conjugation, which can be interpreted as the origin of the aromaticity of each monomer.

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Achondroplasia is the most common genetic form of short-limbed skeletal dysplasia (dwarfism). Clinical manifestations and complications can affect individuals across the lifespan, including the need for adaptations for activities of daily living, which can affect quality of life. Current international guidelines focus on symptomatic management, with little discussion regarding potential medication, as therapeutic options were limited at the time of their publication.

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