Publications by authors named "Eriko Okumura"

Surgical interventions for arachnoid cysts and glioependymal cysts primarily focus on cyst decompression and establishing communication with cerebrospinal fluid spaces. However, a standardized surgical strategy for symptomatic convexity cysts lacking surrounding cerebrospinal fluid space is still lacking due to the limited number of cases. This systematic review aims to evaluate surgical interventions for symptomatic convexity cysts and proposes a safe and effective treatment approach we have developed.

View Article and Find Full Text PDF
Article Synopsis
  • - This text discusses a case involving a 42-year-old woman diagnosed with papillary craniopharyngioma (pCP), which was initially misinterpreted as a Rathke's cleft cyst (RCC) due to similar symptoms and imaging findings.
  • - During a transsphenoidal surgery, the surgeons found cystic contents resembling condensed milk, leading to a cyst fenestration procedure instead of full removal, which is typically done for RCC.
  • - Histopathological analysis post-surgery showed papillary structures and confirmed the diagnosis of pCP; the patient’s visual function improved significantly, and follow-up imaging revealed no recurrence, emphasizing the distinct care needed for these lesions.
View Article and Find Full Text PDF

Background: Periventricular pediatric low-grade gliomas (pLGG) present a surgical challenge due to their deep-seated location, accessibility, and relationship with the subcortical network connections. Minimally invasive parafascicular approaches with tubular brain retractors (port brain surgery) have emerged, in recent years, as an alternative to conventional microsurgical and endoscopic approaches for removal of periventricular tumors.

Objectives: To describe the minimally invasive approach with tubular brain retractors for periventricular pLGG, its technique, applications, safety, and efficacy.

View Article and Find Full Text PDF

A combined transsphenoidal-transcranial approach for the resection of pituitary adenomas has previously been reported. While this approach is useful for specific types of pituitary adenomas, it is an invasive technique. To reduce the invasiveness of this approach, we adopted the keyhole concept for pituitary adenoma resection.

View Article and Find Full Text PDF

Hyponatremia is a common and potentially serious complication of transsphenoidal surgery (TSS). Since September 2009, we have implemented moderate water intake restriction (< 2500 mL/day) after TSS in an attempt to prevent this complication. The aim of this study was to investigate the efficacy of a combination of moderate restriction of water intake plus antidiuretic hormone (arginine vasopressin [AVP]) replacement therapy in patients with diabetes insipidus (DI) for reducing the incidence of delayed hyponatremia after TSS.

View Article and Find Full Text PDF