Publications by authors named "A Yamano"
Skull base tumors such as meningiomas and schwannomas are often pathologically benign. However, surgery for these tumors poses significant challenges because of their proximity to critical structures such as the brainstem, cerebral arteries, veins, and cranial nerves. These structures are compressed or encased by the tumor as they grow, increasing the risk of unintended injury to these structures, which can potentially lead to severe neurological deficits.
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- The study examines two proton therapy planning methods for treating liver cancer to address issues with dose distribution caused by organ movement during treatment.
- Researchers created treatment plans for 11 patients using either beam-specific planning target volume (BSPTV) or worst-case optimization (WCO) techniques, measuring how effectively each method covered the tumor and protected healthy organs.
- Results showed that while WCO plans offered better tumor coverage and minimized damage to surrounding organs, they took longer to optimize compared to BSPTV plans.
A 79-year-old man with smoldering multiple myeloma (MM) developed sudden severe thrombocytopenia and active bleeding. Since anti-GPIIb/IIIa autoantibodies were detected on the platelet surface, thrombocytopenia due to an autoimmune etiology was diagnosed. Although neither steroids nor intravenous immunoglobulins provided improvement, bortezomib provided rapid normalization of the platelet counts with disappearance of the anti-GPIIb/IIIb autoantibodies.
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- The study investigates the relationship between SMCV compression and PTBE in patients with sphenoid wing meningiomas (SWMs) who underwent surgery.
- Out of 31 patients, a significant number experienced PTBE, which correlated with the severity of SMCV compression observed in preoperative imaging.
- The findings suggest that preserving the SMCV during surgery may enhance recovery outcomes, especially for patients with smaller tumors and more extensive PTBE.
Human parechovirus infections in newborns often affect the central nervous system. It is common in children after infancy for it to be a cause of the common cold or be asymptomatic, but an infection in infancy often causes a central nervous system infection. Herein, we present the case of a nine-day-old infant who developed hypercapnia without any involvement of respiratory lesions.
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