The Influence of Aneurysm Size on the Outcomes of Endovascular Management for Aneurysmal Subarachnoid Hemorrhages: A Comparison of the Treatment Results of Patients with Large and Small Aneurysms.

The influence of aneurysm size on the outcomes of endovascular management (EM) for aneurysmal subarachnoid hemorrhages (aSAH) is poorly understood. To evaluate the outcomes of EM for ruptured large cerebral aneurysms, we retrospectively analyzed the medical records of patients with aSAH that were treated with coiling between 2013 and 2020 and compared the differences in outcomes depending on aneurysm size. A total of 469 patients with aSAH were included; 73 patients had aneurysms measuring ≥10 mm in diameter (group L), and 396 had aneurysms measuring <10 mm in diameter (group S).

Difficulty of diagnosing a mucor-induced aneurysm arising in segment P4 of the posterior cerebral artery - A case report.

Background: Identification of causative pathogen for fungal aneurysm is frequently difficult. We reported the case of a fungal aneurysm caused by Mucor arising in segment P4 of the posterior cerebral artery (PCA) detected only by histopathological examination.

Case Description: A 50-year-old female complained of nausea and vomiting.

Epidemiology of post-suboccipital craniotomy headache: A multicentre retrospective study.

The detailed epidemiology and mechanism of post-craniotomy headaches are not well understood. This study aimed to establish the actual clinical incidence and causes of post-craniotomy headaches. Suboccipital craniotomy surgeries performed in six institutions within the five-year study period were included.

The effects of antithrombotic therapy on head trauma and its management.

The number of patients with traumatic intracranial hemorrhage (tICH) that are taking antithrombotics (ATs), antiplatelets (APs) and/or anticoagulants (ACs), has increased, but the influence of it for outcome remains unclear. This study aimed to evaluate an influence of AT for tICH. We retrospectively reviewed all patients with tICH treated between 2012 and 2019, and analyzed demographics, neurological status, clinical course, radiological findings, and outcome data.

Response to pembrolizumab in a patient with primary lung adenocarcinoma originated from indium lung.

Background: Indium is a metal used as a compound called indium-tin oxide for liquid crystal display. Its inhalation causes lung toxicity, resulting in a new occupational lung disease called indium lung. Although the carcinogenicity of indium has been reported in an animal model, its carcinogenicity in humans is unknown.

Prediction of the Cerebral Hyperperfusion Phenomenon after Carotid Endarterectomy Using a Transit Time Flowmeter.

The purpose of this study was to investigate the relationship between the cerebral hyperperfusion phenomenon (CHP) and carotid artery flow volume as measured by a transit time flowmeter during carotid endarterectomy (CEA). We retrospectively investigated 74 patients who underwent both transit time flowmetry and single photon emission computed tomography (SPECT). The flow volumes of the internal carotid artery (ICA) before and after the endarterectomy were recorded during surgery as the pre- and the post-ICA (mL/min), respectively.

Early retreatment after surgical clipping of ruptured intracranial aneurysms.

Background: Although a rerupture after surgical clipping of ruptured intracranial aneurysms is rare, it is associated with high morbidity and mortality. The causes for retreatment and rupture after surgical clipping are not clearly defined.

Methods: From a prospectively maintained database of 244 patients who had undergone surgical clipping of ruptured intracranial aneurysms, we selected patients who experienced retreatment or rerupture within 30 days after surgical clipping.

Clinical outcomes of intracerebral hemorrhage in hemodialysis patients.

Background: Chronic renal failure (CRF) is associated with a high incidence of stroke. In particular, the mortality rate for intracerebral hemorrhage (ICH) patients with hemodialysis (HD) due to advanced stage CRF is high, and the annual number of such cases is increasing. Therefore, we retrospectively investigated 5 years of clinical data from patients with ICH in our institution to reveal differences in the clinical courses of HD and non-HD patients and to identify risk factors for poor outcomes in ICH patients with HD.

Pilot study of the safety of starting administration of low-dose aspirin and cilostazol in acute ischemic stroke.

Progressive stroke is a serious problem due to the associated morbidity and mortality. Aspirin is recommended for acute ischemic stroke, but does not reduce the frequency of stroke progression. No standard treatment has been approved for the prevention of stroke progression.

Mild encephalitis/encephalopathy with a reversible splenial lesion: evaluation by diffusion tensor imaging. Two case reports.

Mild encephalitis/encephalopathy with a reversible splenial lesion (MERS) is a clinico-radiological syndrome with a very particular clinical course. Three patients with MERS were evaluated by various sequences of magnetic resonance imaging with diffusion tensor imaging. Initial diffusion-weighted imaging showed reduction in the apparent diffusion coefficient values in the lesions, which completely resolved with the elimination of symptoms.

Evaluation of ventriculomegaly using diffusion tensor imaging: correlations with chronic hydrocephalus and atrophy.

Object: Ventriculomegaly is a common imaging finding in many types of conditions. It is difficult to determine whether it is related to true hydrocephalus or to an atrophic process by using only imaging procedures such as MR imaging after traumatic injury, stroke, or infectious disease. Diffusion tensor (DT) imaging can distinguish the compression characteristics of white matter, indicating that increased diffusion anisotropy may be related to white matter compression.

Neurocysticercosis as solitary parenchymal lesion confirmed by mitochondrial deoxyribonucleic acid sequence analysis.

A 38-year-old Japanese woman presented with neurocysticercosis manifesting as mild hemiparesis. Magnetic resonance (MR) imaging with gadolinium showed a solitary parenchymal lesion. MR spectroscopy of the mass showed a relatively low N-acetylaspartate peak.

Levodopa treatment for patients in persistent vegetative or minimally conscious states.

The persistent vegetative state (PVS) and the minimally conscious state (MCS) are conditions of altered consciousness after severe brain damage due to a variety of pathologies. However, the specific pathophysiological mechanisms and a therapeutic strategy for intervention have not as yet been established. We review previous reports of levodopa treatment for patients in PVS, MCS, or other mental disorders, and have focused on five representative cases: four of PVS and one of MCS after severe brain injury.