Yasuo Nishijima

Publications (2)1.22 Total impact

• Article: Cushing's disease associated with unruptured large internal carotid artery aneurysm. Case report.

  Yasuo Nishijima, Yoshikazu Ogawa, Kenichi Sato, Yasushi Matsumoto, Teiji Tominaga
  [show abstract] [hide abstract]
  ABSTRACT: A 40-year-old woman with Cushing's disease presented with hypertensive cerebral hemorrhage. Neuroimaging detected an unruptured large intracavernous aneurysm, which projected beyond the midline, and thin crescent-shaped adenoma along the aneurysm wall. The aneurysm was treated with endovascular tight packing with coils. Transsphenoidal adenomectomy was then safely performed. The signs of Cushing's disease were resolved, and she was discharged without deficits. The first line therapy for Cushing's disease is transsphenoidal adenomectomy. However, the therapeutic strategy and optimal timing of treatment are unclear for Cushing's disease with large intracavernous aneurysm. The present case shows that transsphenoidal surgery was safely possible with minimal invasiveness after embolization of the intracavernous aneurysm.
  Neurologia medico-chirurgica 01/2010; 50(8):665-8. · 0.61 Impact Factor
• Article: Neuroendoscopic management of symptomatic septum pellucidum cavum vergae cyst using a high-definition flexible endoscopic system.

  Yasuo Nishijima, Miki Fujimura, Ken-Ichi Nagamatsu, Misaki Kohama, Teiji Tominaga
  [show abstract] [hide abstract]
  ABSTRACT: A 24-year-old man, who had an asymptomatic septum pellucidum cyst incidentally found one year previously, presented with severe headache and right abducens nerve palsy caused by expansion of the midline cyst. Preoperative magnetic resonance (MR) imaging revealed obstructive hydrocephalus due to the enlarged midline cyst. Neuroendoscopic fenestration of the septum pellucidum cyst was successfully performed via a right frontal approach using a high-resolution flexible neuroendoscopic system without complication. Communication between the cyst cavity and bilateral lateral ventricles was constructed via a single trajectory. The entire inner cyst wall could be inspected from the cyst cavity by manipulating the flexible neuroendoscopic system, which excluded the presence of neoplasm. His symptoms were completely relieved after surgery, and postoperative MR imaging showed significant improvement of hydrocephalus and shrinkage of the midline cyst. Septum pellucidum cavum vergae cyst may expand and become symptomatic, so fenestration using a flexible neuroendoscope system may be the optimal method for constructing communication to the bilateral lateral ventricles with minimal invasion.
  Neurologia medico-chirurgica 11/2009; 49(11):549-52. · 0.61 Impact Factor