Christopher S. Ogilvy
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View article: Computational Fluid Dynamics Approaches for Analyzing Rupture and Growth of Intracranial Aneurysms: A Systematic Review
Computational Fluid Dynamics Approaches for Analyzing Rupture and Growth of Intracranial Aneurysms: A Systematic Review Open
Background/Objectives: Hemodynamic stressors, including abnormal wall shear stress (low or high) or oscillatory shear index are recognized as contributors to the pathogenesis, growth, and rupture of intracranial aneurysms (IAs). Computatio…
View article: Abstract 288: Risk factors and clinical outcomes of Takotsubo cardiomyopathy in patients with aneurysmal subarachnoid hemorrhage
Abstract 288: Risk factors and clinical outcomes of Takotsubo cardiomyopathy in patients with aneurysmal subarachnoid hemorrhage Open
Introduction Takotsubo cardiomyopathy (TCM) is a reversible cardiac syndrome that can develop from severe neurogenic stress following aneurysmal subarachnoid hemorrhage (aSAH). In the modern era of aSAH care, marked by significant advancem…
View article: Abstract 531: A Prospective, Multicenter Study of the eShunt System for the Treatment of Normal Pressure Hydrocephalus
Abstract 531: A Prospective, Multicenter Study of the eShunt System for the Treatment of Normal Pressure Hydrocephalus Open
Introduction Normal pressure hydrocephalus (NPH) is a condition of excess cerebrospinal fluid (CSF) in the brain, associated with a symptom triad of impaired gait, cognition, and urinary incontinence. Standard of care treatment for NPH is …
View article: Abstract 245: Super‐Large‐Bore vs Large‐Bore Aspiration Catheters in Mechanical Thrombectomy: A Multicenter Propensity‐Matched Analysis
Abstract 245: Super‐Large‐Bore vs Large‐Bore Aspiration Catheters in Mechanical Thrombectomy: A Multicenter Propensity‐Matched Analysis Open
Background Contact aspiration remains a frontline approach for mechanical thrombectomy (MT) in acute ischemic stroke (AIS). Early evidence correlates catheter size with procedural efficiency and clinical outcomes. Larger‐bore (LB) aspirati…
View article: Procedure duration predicts outcomes more than prehospital delay in endovascular stroke treatment
Procedure duration predicts outcomes more than prehospital delay in endovascular stroke treatment Open
Background Endovascular thrombectomy (EVT) has transformed acute ischemic stroke (AIS) care, with onset-to-puncture (OTP) time widely recognized as a critical determinant of outcome. However, emerging evidence suggests that in-hospital pro…
View article: Reversible edema after radiosurgery for arteriovenous malformations (AVMs): Inflow and outflow imbalance
Reversible edema after radiosurgery for arteriovenous malformations (AVMs): Inflow and outflow imbalance Open
We examine the remodeling of arterial feeders and draining veins following Stereotactic Radiosurgery (SRS) and explore their relationship with radiation-induced edema using retrospective data from 50 patients with cerebral AVMs treated wit…
View article: Outcomes of bypass surgery in asymptomatic moyamoya angiopathy: A multicenter study with propensity-score weighting
Outcomes of bypass surgery in asymptomatic moyamoya angiopathy: A multicenter study with propensity-score weighting Open
Introduction: Asymptomatic moyamoya angiopathy (MMA) is increasingly detected through noninvasive imaging; however, its optimal management remains controversial. This multicenter retrospective cohort study compared outcomes in asymptomatic…
View article: Hurting More Than Helping? Decompressive Craniectomy in Patients With Symptomatic Intracerebral Hemorrhage After Mechanical Thrombectomy in Acute Ischemic Stroke: Insights From Stroke Thrombectomy and Aneurysm Registry
Hurting More Than Helping? Decompressive Craniectomy in Patients With Symptomatic Intracerebral Hemorrhage After Mechanical Thrombectomy in Acute Ischemic Stroke: Insights From Stroke Thrombectomy and Aneurysm Registry Open
BACKGROUND AND OBJECTIVES: It remains unclear whether decompressive craniectomy (DC) is beneficial in patients who suffer symptomatic intracerebral hemorrhage (sICH) after acute ischemic stroke (AIS). We sought to study the effect of DC on…
View article: Enhancing precision in aneurysm volume measurement: A comparative study of techniques including an artificial intelligence-based method for endovascular coiling
Enhancing precision in aneurysm volume measurement: A comparative study of techniques including an artificial intelligence-based method for endovascular coiling Open
Background: Durable occlusion after endovascular coiling can be compromised by recanalization, underscoring the need for accurate cerebral aneurysm assessment. Precise volume measurement not only informs treatment decisions and detects sub…
View article: The effect of antiseizure medication on mortality in spontaneous aneurysmal subarachnoid hemorrhage
The effect of antiseizure medication on mortality in spontaneous aneurysmal subarachnoid hemorrhage Open
Background Spontaneous aneurysmal subarachnoid hemorrhage (aSAH) is a major cause of morbidity and mortality in the United States. The efficacy of early antiseizure medication (ASM) is debated. Recent literature reports seizure rates rangi…
View article: Predictors of perioperative stroke in patients with Ischemic-type moyamoya disease treated with surgical revascularization: A retrospective multicenter study
Predictors of perioperative stroke in patients with Ischemic-type moyamoya disease treated with surgical revascularization: A retrospective multicenter study Open
Hypertension and smoking were significant predictors of perioperative stroke in patients with ischemic-type MMD undergoing surgical revascularization. These findings emphasize the importance of managing risk factors in ischemic-type MMD. F…
View article: Comparative efficacy and safety of stent retrievers as a bailout strategy following failed contact aspiration technique in acute stroke thrombectomy
Comparative efficacy and safety of stent retrievers as a bailout strategy following failed contact aspiration technique in acute stroke thrombectomy Open
Background The contact aspiration (CA) technique is often used to perform endovascular thrombectomy (EVT) for acute ischemic stroke (AIS); however, rescue strategies are necessary if CA fails to achieve recanalization. This study investiga…
View article: Discrepancies in computed tomography (CT) perfusion and CT angiography imaging following stroke in a patient post-heart transplant on extracorporeal membrane oxygenation: a case report
Discrepancies in computed tomography (CT) perfusion and CT angiography imaging following stroke in a patient post-heart transplant on extracorporeal membrane oxygenation: a case report Open
Background: Extracorporeal membrane oxygenation (ECMO) is a critical life-support intervention for severe cardiopulmonary failure. Venoarterial (VA)-ECMO presents unique challenges in neuroradiological assessment due to hemodynamic alterat…
View article: Stroke-Related Outcomes in Moyamoya Disease Compared with Moyamoya Syndromes: A Propensity-Matched Analysis
Stroke-Related Outcomes in Moyamoya Disease Compared with Moyamoya Syndromes: A Propensity-Matched Analysis Open
Patients with MMS-SCD had significantly lower rates of acute ischemic stroke, hemorrhagic stroke, and TIA compared with patients with MMD only. Future research should consider the source of these differences in improving stroke prevention …
View article: Exploring the hemodynamic behavior of residual aneurysms after coiling and clipping: A computational flow dynamic analysis
Exploring the hemodynamic behavior of residual aneurysms after coiling and clipping: A computational flow dynamic analysis Open
Background: Residual intracranial aneurysms post-clipping or coiling pose a poorly established risk of rupture. Computational fluid dynamic (CFD) offers insights into hemodynamic changes following such interventions. This study aims to ass…
View article: The impact of hypertension on clinical outcomes in moyamoya disease: a multicenter, propensity score-matched analysis
The impact of hypertension on clinical outcomes in moyamoya disease: a multicenter, propensity score-matched analysis Open
Background Moyamoya disease (MMD) is a rare cerebrovascular disorder characterized by progressive steno-occlusive changes in the internal carotid arteries, leading to an abnormal vascular network. Hypertension is prevalent among MMD patien…
View article: Cost-Effectiveness of Platelet Function Testing in Dual Antiplatelet Therapy Decision-Making after Intracranial Aneurysm Treatment with Flow Diversion
Cost-Effectiveness of Platelet Function Testing in Dual Antiplatelet Therapy Decision-Making after Intracranial Aneurysm Treatment with Flow Diversion Open
Introduction Dual antiplatelet therapy (DAPT) use is the standard of practice after flow diversion (FD) for intracranial aneurysms (IAs). Yet, no consensus exists in the literature regarding the optimal regimen. Certain institutions utiliz…
View article: A core-lab adjudicated analysis of single-stent assisted coiling of wide-neck bifurcation aneurysms
A core-lab adjudicated analysis of single-stent assisted coiling of wide-neck bifurcation aneurysms Open
Background and purpose Core-lab adjudicated data regarding the efficacy of the single-stent assisted aneurysm coiling technique ‘L-stenting’ are lacking. We present a multicenter, core-lab adjudicated study evaluating the safety and effect…
View article: Flow Diversion as a Definitive Treatment for Recurrently Ruptured A1-A2 Anterior Cerebral Artery Aneurysm Following Clipping and Coiling
Flow Diversion as a Definitive Treatment for Recurrently Ruptured A1-A2 Anterior Cerebral Artery Aneurysm Following Clipping and Coiling Open
Even after clipping of intracranial aneurysms, patients may experience incomplete occlusion or the future recurrence of their treated aneurysm. This paper presents a distinctive case of a recurrent A1-A2 anterior cerebral artery aneurysm t…
View article: 16S rRNA gene amplicon-based gut microbiome signature in cerebral vasospasm and delayed cerebral ischemia after aneurysmal subarachnoid hemorrhage: A prospective nested case-control pilot study
16S rRNA gene amplicon-based gut microbiome signature in cerebral vasospasm and delayed cerebral ischemia after aneurysmal subarachnoid hemorrhage: A prospective nested case-control pilot study Open
A recent systematic review indicated that gut-microbiota-brain axis contributes to growth and rupture of intracranial aneurysms. However, gaps were detected in the role of intestinal microbiome in cerebral vasospasm (CVS) after aneurysmal …
View article: Propofol-Based Anesthesia Maintenance and/or Volatile Anesthetics during Intracranial Aneurysm Repair: A Comparative Analysis of Neurological Outcomes
Propofol-Based Anesthesia Maintenance and/or Volatile Anesthetics during Intracranial Aneurysm Repair: A Comparative Analysis of Neurological Outcomes Open
Background: Volatile and intravenous anesthetics have substantial effects on physiological functions, notably influencing neurological function and susceptibility to injury. Despite the importance of the anesthetic approach, data on its re…
View article: O-021 Concurrent middle meningeal artery embolization for treatment of chronic subdural hematomas
O-021 Concurrent middle meningeal artery embolization for treatment of chronic subdural hematomas Open
Non-acute subdural hematomas (NASHs) are expected to be the most common cranial neurosurgery pathology encountered by the year 2030. Treatment with surgical evacuation may be necessary, but the rate of recurrence after surgical interventi…