Kazuhiro Ohwaki

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BACKGROUND AND PURPOSE The association between elevated blood pressure (BP) and hematoma enlargement in acute intracerebral hemorrhage (ICH) has not been clarified. We investigated the association between maximum systolic BP (SBP) and hematoma enlargement, measuring SBP between a baseline and a second CT scan in patients with hypertensive ICH. METHODS We(More)
This is a paper of new trial of treatment of malignant brain tumor by local injection of bleomycin (BLM). The new method of intraneoplastic BLM injection is as follows: in the cases ended up with subtotal or partial removal of the tumor, Ommaya's device was detained in the tumor bed, and its reservoir was fixed subcutaneous on the skull. 0.1 mg/kg to 0.2(More)
Subarachnoid haemorrhage (SAH) patients in Fisher group 3 have a high risk of vasospasm and chronic hydrocephalus. We have provided cisternal irrigation combined with a head-shaking method for preventing vasospasm in SAH patients. We investigated 76 SAH patients in Fisher group 3 who received cisternal irrigation with head-shaking to evaluate the(More)
The authors report an unusual case of a 11-year-old boy whose supratentorial ependymoma showed rapid growth. He had had generalized convulsive seizures when he was 9 years old. On an initial CT scan a small calcified lesion was identified adjacent to the right sensorimotor cortex. Repeated CT scans showed no interval change in the size of the tumor for 16(More)
The aim of this study was to assess whether body mass index (BMI) was associated with abnormal results of other tests related to metabolic disorders in the periodic health checkup, and determine whether changes in BMI were associated with changes in these other tests. We surveyed 2,392 Japanese male workers, aged 19-59 who have received regular health(More)
INTRODUCTION Little information is available on the efficacy of aggressive treatment such as surgery in improving the outcome of severely affected patients after supratentorial intracerebral hemorrhage (ICH). Our objective was to assess the effect of hematoma removal and ventricular drainage on the mortality of patients with severe primary supratentorial(More)
OBJECT Although the mechanisms underlying neurocognitive changes after carotid endarterectomy (CEA) are poorly understood, intraoperative ischemia and postoperative hemodynamic changes may play a role. METHODS Data from 81 patients who underwent unilateral CEA with routine shunt use for carotid artery stenosis were retrospectively evaluated. These(More)
OBJECT Lowering the blood pressure (BP) of patients with intracerebral haemorrhage (ICH) can prevent haematoma enlargement but may also promote secondary infarction in areas adjacent to the haematoma, which can lead to neurological deterioration. Little is known about the effects of low BP on early neurological deterioration (END). We conducted a(More)
INTRODUCTION The vast majority of patients with intracerebral hemorrhage (ICH) are admitted to an intensive care unit (ICU). Patients admitted to ICUs have a high risk of developing nosocomial infections, while complicating infection appears to be associated with a longer ICU stay. An increased length of ICU stay translates directly into increased costs.(More)
BACKGROUND Routine shunting to minimize ischemia during carotid endarterectomy (CEA) is controversial. The aim of this study was to stratify the ischemic parameters associated with CEA and evaluate the effect of routine shunting in attempting to mitigate those ischemia. METHOD Data from 248 CEAs with routine shunting were retrospectively evaluated. Our(More)