Remote Management of Poststroke Patients With a Smartphone-Based Management System Integrated in Clinical Care: Prospective, Nonrandomized, Interventional Study.

Background: Advances in mobile health (mHealth) have enabled systematic and continuous management of patients with chronic diseases.

Objective: We developed a smartphone-based mHealth system and aimed to evaluate its effects on health behavior management and risk factor control in stroke patients.

Methods: With a multifaceted stroke aftercare management system that included exercise, medication, and educational materials, we performed a 12-week single-arm intervention among eligible poststroke patients in the stroke clinic from September to December 2016.

Metal Artifact Reduction for Orthopedic Implants: Brain CT Angiography in Patients with Intracranial Metallic Implants.

Background: The purpose of this study was to qualitatively and quantitatively evaluate the effects of a metal artifact reduction for orthopedic implants (O-MAR) for brain computed tomographic angiography (CTA) in patients with aneurysm clips and coils.

Methods: The study included 36 consecutive patients with 47 intracranial metallic implants (42 aneurysm clips, 5 coils) who underwent brain CTA. The computed tomographic images with and without the O-MAR were independently reviewed both quantitatively and qualitatively by two reviewers.

Comparison of Unilateral and Bilateral Craniotomy for the Treatment of Bilateral Middle Cerebral Artery Aneurysms: Anatomic and Clinical Parameters and Surgical Outcomes.

Objective: To compare 2 craniotomy approaches (unilateral and bilateral) in terms of anatomic and clinical parameters and surgical outcomes.

Methods: Between January 2011 and December 2014, 19 patients with bilateral unruptured middle cerebral artery (MCA) aneurysm were treated with unilateral craniotomy (group 1), and 10 patients were treated with bilateral mini-craniotomy (group 2). We compared demographic data, characteristics of aneurysms, radiologic and clinical parameters, postoperative complications, and surgical outcomes between the 2 groups.

Cerebrovascular Events During Pregnancy and Puerperium Resulting from Preexisting Moyamoya Disease: Determining the Risk of Ischemic Events Based on Hemodynamic Status Assessment Using Brain Perfusion Single-Photon Emission Computed Tomography.

Objective: The purposes of this study were to review the cerebrovascular events (CVE) during pregnancy and puerperium in adults with moyamoya disease (MMD) and to evaluate its risk factors.

Methods: We reviewed electronic medical records on 141 pregnancies in 71 women diagnosed with MMD and this study included only 27 pregnancies (23 patients) diagnosed with MMD before pregnancy. Basal and acetazolamide-stress brain perfusion single-photon emission computed tomography (SPECT) was conducted for 40 hemispheres in 21 pregnancies within 1 year of the gestational period, ranging from 22 months before delivery to 12 months after delivery for evaluation of the hemodynamic status of the patients to devise the MMD treatment strategy.

Isolated Cortical Vein Thrombosis with Long Cord Sign.

Isolated cortical vein thrombosis (ICVT) is a rare disease, accounting for less than 1% of strokes. A 46-year-old woman presented with progressive left side weakness. Magnetic resonance (MR) imaging with T2(*)-gradient echo (T2(*)-GE) sequence showed long cord sign at the right frontal cortex.

What Should Be Considered to Cause the Early Post-Craniotomy Seizure: Antibiotics (Cefazolin) Irrigation.

Objective: Post-craniotomy seizure (PCS) is reported only rarely. However, our department noted a 433% increase in PCS for a year beginning September 2010, especially after cerebrovascular surgery. Our goal was to identify the cause of our unusual outbreak of PCS.

Usefulness of Fracture Risk Assessment Tool Using Lumbar Bone Mineral Density in Prediction of Osteoporotic Vertebral Fracture.

Objective: To investigate the value of lumbar bone mineral density (BMD) in fracture risk assessment (FRAX) tool.

Methods: One hundred and ten patients aged over 60 years were enrolled and divided into 2 groups as non-osteoporotic vertebral fracture (OVF) and OVF groups. The 10-year-risk of major osteoporotic vertebral fracture of each group was calculated by FRAX tool with femoral and lumbar spine BMDs to compare the usefulness of lumbar spine BMD in prediction of OVF.

Overexpressions of Vimentin and Integrins in Human Metastatic Spine Tumors.

Objective: To comparatively investigate the expression of several integrins in specimens of human bone metastases and degenerative bone tissue.

Methods: Degenerative cancellous tissue was obtained from a sample of human degenerative spine. Thirteen human specimens were obtained from metastatic spine tumors, whose primary cancer was colon cancer (n=3), hepatocellular cancer (n=3), lung cancer (n=4), and breast cancer (n=3).

The natural clinical course of hemodynamically stable adult moyamoya disease.

Object: Moyamoya disease (MMD) is a rare cerebrovascular disease and its natural history is still unclear. The authors aimed to investigate the natural course of hemodynamically stable cases of adult MMD, with the analysis of stroke risk factors.

Methods: Two hundred forty-one patients were included in this retrospective study.

Large spinal meningioma with hemorrhage after selective root block in the thoraco-lumbar spine.

Spinal meningioma accounts for 25% of all spinal cord tumors and occurs mostly in the thoracic region. Spontaneous intraspinal bleeding associated with spinal meningioma has rarely been reported. Most cases of hemorrhage associated with meningiomas are extratumoral and subarachnoid, whereas subdural and intratumoral hemorrhage cases have been reported to occur rarely.

A risk factor analysis of prospective symptomatic haemorrhage in adult patients with cerebral cavernous malformation.

Objective: The purpose of this study was to assess the risk factors of prospective symptomatic haemorrhage in a large series of adult patients with cerebral cavernous malformation (CM).

Methods: Three hundred twenty-six patients >18 years of age with 410 CMs were evaluated retrospectively. Symptomatic haemorrhage was defined as new clinical symptoms with radiographic features of haemorrhage.

The impact of menopause on bone fusion after the single-level anterior cervical discectomy and fusion.

Objective: To evaluate the successful fusion rate in postmenopausal women with single-level anterior cervical discectomy and successful fusion (ACDF) and identify the significant factors related to bone successful fusion in pre- and postmenopausal women.

Methods: From July 2004 to December 2010, 108 consecutive patients who underwent single-level ACDF were prospectively selected as candidates. Among these, the charts and radiological data of 39 women were reviewed retrospectively.

Involuntary movement in pediatric moyamoya disease patients: consideration of pathogenetic mechanism using neuroimaging studies.

Purpose: Involuntary movement is a rare symptom of moyamoya disease (MMD). No consensus has been reached regarding its clinical features and pathogenetic mechanism. Therefore, pediatric MMD patients presenting with involuntary movement were retrospectively analyzed, focusing on the image findings.

Feasibility of endoscopic endonasal approach for recurrent pituitary adenomas after microscopic trans-sphenoidal approach.

Objective: The surgical approach for recurrent pituitary adenoma after trans-sphenoidal approach (TSA) is challenging. We report the outcomes of the endoscopic TSA for recurrent pituitary adenoma after microscopic TSA.

Methods: From February 2010 to February 2013, endoscopic TSA was performed for removal of 30 recurrent pituitary adenomas after microscopic TSA.

Contralateral progression and its risk factor in surgically treated unilateral adult moyamoya disease with a review of pertinent literature.

Background: The fate of the contralateral unaffected side of the surgically treated unilateral moyamoya disease (MMD) in adults has not been well described due to the limited number of cases and the heterogeneous ages and treatment methods. The aim of this study was to evaluate the contralateral angiographic progression rate and its risk factors in homogeneous adult MMD patients who underwent surgical revascularization, with a review of pertinent literature.

Methods: Forty-one surgically treated unilateral MMD patients were retrospectively evaluated.

Early experience of pre- and post-contrast 7.0T MRI in brain tumors.

We investigated the safety and clinical applicability of 7.0 Tesla (T) brain magnetic resonance imaging (MRI) in patients with brain tumors. Twenty-four patients with intraaxial or extraaxial brain tumors were enrolled in this study.

Quantitative analysis of intraoperative indocyanine green video angiography in aneurysm surgery.

Objective: Indocyanine green (ICG) videoangiography (VA) is being used in assessment of blood flow during cerebrovascular surgery. However, data collected during ICG angiography are usually interpreted qualitatively. In this study, quantitative analysis of ICG angiogram was attempted.

Dissecting aneurysm of vertebral artery manifestating as contralateral abducens nerve palsy.

Isolated abducens nerve paresis related to ruptured vertebral artery (VA) aneurysm is rare. It usually occurs bilaterally or ipsilaterally to the pathologic lesions. We report the case of a contralateral sixth nerve palsy following ruptured dissecting VA aneurysm.

Slowly recovering isolated bilateral abducens nerve palsy after embolization of ruptured anterior communicating artery aneurysm.

Bilateral abducens nerve palsy related to ruptured aneurysm of the anterior communicating artery (ACoA) has only been reported in four patients. Three cases were treated by surgical clipping. No report has described the clinical course of the isolated bilateral abducens nerve palsy following ruptured ACoA aneurysm obliterated with coil.

Mobile computed tomography : three year clinical experience in Korea.

Objective: Obtaining real-time image is essential for neurosurgeons to minimize invasion of normal brain tissue and to prompt diagnosis of intracranial event. The aim of this study was to report our three-year experience with a mobile computed tomography (mCT) for intraoperative and bedside scanning.

Methods: A total of 357 mCT (297 patients) scans from January 2009 to December 2011 in single institution were reviewed.

Treatment outcomes of intracranial dural arteriovenous fistulas of the transverse and sigmoid sinuses from a single institute in Asia.

Intracranial dural arteriovenous fistulas (DAVFs) of the transverse and sigmoid sinuses (TSS) are rare in Asian populations. This study sought to evaluate the treatment outcomes of intracranial TSS DAVFs at a single Asian institute. Between 1989 and 2007, 122 patients presented to the Seoul National University Hospital with intracranial DAVFs; we performed a retrospective analysis of the 38 patients (31.

Early recurrent hemorrhage after coil embolization in ruptured intracranial aneurysms.

Introduction: The authors present a series of patients in whom early rebleeding occurred after coiling for ruptured aneurysms. We investigated the incidence and possible mechanisms of early rebleeding.

Methods: This study consisted of 1,167 consecutive patients who underwent coiling for a ruptured saccular aneurysm.

Clinical experiences with spontaneous intracranial hypotension: a proposal of a diagnostic approach and treatment.

Objective: We analyzed our clinical experience with patients with intracranial hypotension and developed a strategic model for the diagnosis mainly using Radioisotope (RI) cisternography and treatment of spontaneous intracranial hypotension (SIH).

Methods And Materials: We retrospectively analyzed our clinical experiences with 30 cases of SIH from January 2000 through December 2006. All patients had confirmed by magnetic resonance image (MRI).

Epilepsy after bypass surgery in adult moyamoya disease.

Background: Postoperative seizure, well-known in association with other pathologies, has been rarely discussed in adult moyamoya disease.

Objective: We evaluated postoperative seizures in adult patients with moyamoya undergoing revascularization surgery.

Methods: From 2001 to 2007, 43 adult patients with moyamoya disease underwent 53 revascularization surgeries, consisting of direct bypass with or without indirect bypass.

Mobile computed tomography : early experience in Korea.

Objective: With improved technology, the values of intraoperative computed tomography (iCT) have been reevaluated. We describe our early clinical experience with a mobile CT (mCT) system for iCT and discuss its clinical applications, advantages and limitations.

Methods: Compared with intraoperative magnetic resonance imaging, this mCT system has no need for major reconstruction of a preexisting operating room for shielding, or for specialized instruments or equipment.