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Articles 1 - 30 of 50
Full-Text Articles in Radiology
When The Eagle Strikes The Vein: A Case Of Styloid-Induced Venous Sinus Thrombosis, Neud Kiros, Ahmad Chehab, Abeer Abukamil, Ali Luqman, Kamil Abu-Shaban, Mehdy Haidar, Ay-Ming Wang
When The Eagle Strikes The Vein: A Case Of Styloid-Induced Venous Sinus Thrombosis, Neud Kiros, Ahmad Chehab, Abeer Abukamil, Ali Luqman, Kamil Abu-Shaban, Mehdy Haidar, Ay-Ming Wang
Conference Presentation Abstracts
Clinical History 41-year-old male with no prior relevant medical history presented to the emergency department with severe neck pain and occipital headaches radiating bilaterally to the temporal regions. He also reported diplopia and “tunnel vision.” He had presented two weeks earlier with similar symptoms and was advised outpatient follow-up. Initial CT head and cervical spine were unremarkable. Imaging Findings Brain MRI/MRV demonstrated heterogeneous signal and enhancement in the left transverse and sigmoid sinuses and jugular bulb, initially thought to reflect possible motion artifact. However, CT venography was recommended for further assessment. The MRI also showed subtle left posterior occipital subdural …
Imaging In Acute Neurovascular Emergencies: Optimizing Outcomes In Large Vessel Occlusion Stroke, Chandu Goli, Rohit Patel, Elliott Beard, Anna Liles, Saeed Saleh, Aleeza Namit, Alissa Ongaco, Kevin Steed Ph.D.
Imaging In Acute Neurovascular Emergencies: Optimizing Outcomes In Large Vessel Occlusion Stroke, Chandu Goli, Rohit Patel, Elliott Beard, Anna Liles, Saeed Saleh, Aleeza Namit, Alissa Ongaco, Kevin Steed Ph.D.
Annual Research Symposium
Purpose:
Large vessel occlusion (LVO) stroke is associated with high rates of morbidity and mortality, and patient outcomes are strongly influenced by rapid identification and timely reperfusion. Advances in acute neurovascular imaging have transformed stroke care by enabling precise patient selection, extending treatment windows, and accelerating clinical workflows. The purpose of this project is to evaluate how modern neurovascular imaging strategies influence treatment selection, workflow efficiency, and clinical outcomes in patients with acute LVO stroke.
Methods:
A narrative review of peer-reviewed literature published within the past decade was conducted. The review focused on CT-based imaging (non-contrast CT, CT angiography, CT …
Image Quality Analysis Of Head Cts Obtained On A New Portable Scanner Compared To Stationary Ct, Mara M. Kunst, Juan E. Small, Sebastian E. Flacke, Joseph D. Burns, Maximilian Smith, Christoph D. Wald
Image Quality Analysis Of Head Cts Obtained On A New Portable Scanner Compared To Stationary Ct, Mara M. Kunst, Juan E. Small, Sebastian E. Flacke, Joseph D. Burns, Maximilian Smith, Christoph D. Wald
The Lahey Journal
Background/Purpose: The use of mobile head CT scanning in the ICU setting has both clinical and economic advantages, particularly if able to provide image quality close or equal to fixed CT scanners.
The purpose of the study is to evaluate the image quality of a new portable CT scanner, compared to a fixed CT platform.
Materials/Methods: Inpatients (n=11), age> 60 requiring head CT evaluation were enrolled and consented to obtain an additional head CT on the portable CT, following their fixed exam.
Nine patients were able to complete the study; seven patients received duplicate exams with matched imaging technique, and …
Unilateral Hearing Loss Caused By Bilateral Otosclerosis In The Context Of Prior Viral Infection - Case Report, Ryan Tam, Michael Mullinax, Timothy Ehmann, Bryan Scott
Unilateral Hearing Loss Caused By Bilateral Otosclerosis In The Context Of Prior Viral Infection - Case Report, Ryan Tam, Michael Mullinax, Timothy Ehmann, Bryan Scott
Advances in Clinical Medical Research and Healthcare Delivery
This is a case report of a patient who presented with left sided hearing loss. The patient was found to have mixed conductive and sensorineural hearing loss of the left ear and restrictive hearing of the right ear. Subsequent imaging demonstrated evidence of bilateral otosclerosis. Otosclerosis is characterized by progressive pathological bone remodeling in the otic capsule, resulting in hearing loss. Given the disease burden of otosclerosis and the corresponding effects on quality of life, providers must have knowledge of the disease to incorporate it into working differential diagnoses for patients presenting with hearing loss. With increasing recognition of otosclerosis …
Positron Emission Tomography (Pet) In Presurgical Planning Of Anterior Temporal Lobectomy: A Systematic Review Of Efficacy And Limitations, Eric M. Teichner, Robert C Subtirelu, Shiv Patil, Chitra Parikh, Arjun Ashok, Sahithi Talasila, Victoria Anderson, Talha Khan, Yvonne Su, Thomas Werner, Abass Alavi, Mona-Elisabeth Revheim
Positron Emission Tomography (Pet) In Presurgical Planning Of Anterior Temporal Lobectomy: A Systematic Review Of Efficacy And Limitations, Eric M. Teichner, Robert C Subtirelu, Shiv Patil, Chitra Parikh, Arjun Ashok, Sahithi Talasila, Victoria Anderson, Talha Khan, Yvonne Su, Thomas Werner, Abass Alavi, Mona-Elisabeth Revheim
SKMC Student Presentations and Publications
INTRODUCTION: Temporal lobe epilepsy (TLE), a debilitating neurological disorder, necessitates refined diagnostic and treatment strategies. This comprehensive review appraises the potential of positron emission tomography (PET) in enhancing the presurgical planning of Anterior Temporal Lobectomy (ATL) for patients afflicted with TLE.
METHODS: A comprehensive literature search was conducted using the PubMed, SCOPUS, and ScienceDirect databases from 1985 to 2022, following the PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) guidelines for studies investigating PET and ATL. This review studied a range of radiotracers, including FDG, H
RESULTS: A total of 52 studies were included in the final analysis. Our …
Leptomeningeal Carcinomatosis In A Young Patient With Colorectal Cancer: A Case Report, Zamanali Khakhar, Soraiya Manji, Rajiv Patel, Karishma Sharma, Sheila Waa, Sayed Karar
Leptomeningeal Carcinomatosis In A Young Patient With Colorectal Cancer: A Case Report, Zamanali Khakhar, Soraiya Manji, Rajiv Patel, Karishma Sharma, Sheila Waa, Sayed Karar
Internal Medicine, East Africa
Leptomeningeal carcinomatosis (LMC) is a rare and fatal complication associated with various solid tumors and hematological malignancies. It presents significant diagnostic challenges due to its nonspecific symptoms and complex clinical course. This case report details the presentation, diagnosis, and implications of LMC in a 33-year-old male with a history of colorectal cancer (CRC) and hemicolectomy. The patient presented with nonspecific symptoms of headache and dizziness. Cerebrospinal fluid cytology revealed the presence of malignant cells, leading to the diagnosis of LMC secondary to CRC. The elusive and multifaceted nature of this condition highlights the necessity for increased clinical awareness and extensive …
Case Report Of Unilateral Dysphagia In The Context Of A Classical Type Of Eagle Syndrome, Ryan Tam, Stephen D. Howard, Timothy Ehmann, Bryan Scott
Case Report Of Unilateral Dysphagia In The Context Of A Classical Type Of Eagle Syndrome, Ryan Tam, Stephen D. Howard, Timothy Ehmann, Bryan Scott
Advances in Clinical Medical Research and Healthcare Delivery
A patient presents with unilateral, right-sided dysphagia and generalized facial symptoms following past surgical history of tonsillectomy that is consistent with an underdiagnosis of Eagle Syndrome. The elongation of the styloid process likely impinged on the glossopharyngeal and vagus nerves resulting in symptoms. Given the lack of recognition of the disease, this case report describes the presentation of Eagle Syndrome to encourage physicians to consider this disease as part of a broader differential diagnosis.
Blunt Cerebrovascular Injury (Bcvi): Universal Cta Neck Screening At Level 2 Trauma Center, Tamine Gogel
Blunt Cerebrovascular Injury (Bcvi): Universal Cta Neck Screening At Level 2 Trauma Center, Tamine Gogel
Doctor of Nursing Practice Projects
Blunt Cerebrovascular Injury (BCVI) refers to injuries to the vessels supplying blood to the brain, primarily carotid and vertebral arteries, and can result from trauma, resulting in stroke by vessel dissection, thrombus formation, embolization, and hemorrhage. Timely identification is crucial for effective intervention and improved outcomes. This doctoral project proposes the implementation of universal screening using Computed Tomography Angiography (CTA) of the neck during initial workup for blunt force trauma at a Level II ACS-verified trauma center. The primary objective is to mitigate potential delays in diagnosing and treating BCVI, thereby reducing the likelihood of complications. Patients ≥ 15 years …
Improving Time To Mri In The Emergency Room For Spinal Epidural Abscesses, Karim Hafazalla, Md, Angeleah Carreras, Ms, Sean Mcgann, Md, Scott Faro, Md, Adam Flanders, Md, Richard Schmidt, Md, James Harrop, Md
Improving Time To Mri In The Emergency Room For Spinal Epidural Abscesses, Karim Hafazalla, Md, Angeleah Carreras, Ms, Sean Mcgann, Md, Scott Faro, Md, Adam Flanders, Md, Richard Schmidt, Md, James Harrop, Md
Health Equity and Quality Improvement (HEQI) Summit
Background
Magnetic resonance images (MRI) is integral in assessing pathology. This is especially true in the emergency room (ER), where delays in diagnosing emergent neurologic pathologies, including spinal epidural abscesses (EDAs), where the morbidity can be severe if not addressed in time. This study aims to implement an expedited imaging pathway for this urgent / emergent pathology.
Insular And Amygdala Origin Seizures: Unmasked With Electrocorticography (Ecog), Younes Motii, Arichenaramanathan Manmatharayan, Parthasarathi Chamiraju, Mona Elsayed
Insular And Amygdala Origin Seizures: Unmasked With Electrocorticography (Ecog), Younes Motii, Arichenaramanathan Manmatharayan, Parthasarathi Chamiraju, Mona Elsayed
Medical Student Research Symposium
Insular and Amygdala Origin Seizures: Unmasked with Electrocorticography (ECOG)
Introduction:
Insula and amygdala have a large network of connections to other cortical regions. Seizures originating from these structures may become evident only after propagation to other structures. High degree of attention must be paid to auras and seizure semiology in patients with medically intractable epilepsy.
Methodology:
We have described a series of three adult male patients with focal intractable epilepsy who did not have structural lesions on Magnetic Resonance Imaging (MRI). Patients underwent MRI, Positron Emission Tomography (PET) scan, scalp electroencephalography (EEG), and stereo EEG implantation.
Results:
All three patients …
Comparison Of Physics-Based Deformable Registration Methods For Image-Guided Neurosurgery, Nikos Chrisochoides, Yixun Liu, Fotis Drakopoulos, Andriy Kot, Panos Foteinos, Christos Tsolakis, Emmanuel Billias, Olivier Clatz, Nicholas Ayache, Andrey Fedorov, Alex Golby, Peter Black, Ron Kikinis
Comparison Of Physics-Based Deformable Registration Methods For Image-Guided Neurosurgery, Nikos Chrisochoides, Yixun Liu, Fotis Drakopoulos, Andriy Kot, Panos Foteinos, Christos Tsolakis, Emmanuel Billias, Olivier Clatz, Nicholas Ayache, Andrey Fedorov, Alex Golby, Peter Black, Ron Kikinis
Computer Science Faculty Publications
This paper compares three finite element-based methods used in a physics-based non-rigid registration approach and reports on the progress made over the last 15 years. Large brain shifts caused by brain tumor removal affect registration accuracy by creating point and element outliers. A combination of approximation- and geometry-based point and element outlier rejection improves the rigid registration error by 2.5 mm and meets the real-time constraints (4 min). In addition, the paper raises several questions and presents two open problems for the robust estimation and improvement of registration error in the presence of outliers due to sparse, noisy, and incomplete …
Human Amniotic Membrane As A Dural Substitute In Neurosurgery: A Systematic Review, Zara Shah, Saqib Kamran Bakhshi, Mohammad Hamza Bajwa, Mujtaba Khalil, Michael C. Dewan, Muhammad Shahzad Shamim
Human Amniotic Membrane As A Dural Substitute In Neurosurgery: A Systematic Review, Zara Shah, Saqib Kamran Bakhshi, Mohammad Hamza Bajwa, Mujtaba Khalil, Michael C. Dewan, Muhammad Shahzad Shamim
Medical College Documents
Background: Several studies have highlighted the use of human amniotic membrane (HAM) in neurosurgical procedures as an effective dural substitute. HAM has inherent antifibrotic and anti-inflammatory properties and exhibits immunomodulatory effect that makes it an ideal dural substitute. Other advantages including easy availability, low cost of procurement, and storage also render it a promising dural substitute especially in low- and middle-income countries.
Methods: A systematic literature search was performed using PubMed, Scopus, and Google Scholar databases, using the search terms "human amniotic membrane," "dural repair," and "neurosurgery." To be eligible for inclusion in our review, papers had to report primary …
What Do We Know So Far About Ofatumumab For Relapsing Multiple Sclerosis? A Meta-Analytical Study, Hafiza Munazza Taj, Maryam Talib, Sania Siddiqa, Azza Sarfraz, Zouina Sarfraz, Karla Robles-Velasco, Ivan Cherrez-Ojeda
What Do We Know So Far About Ofatumumab For Relapsing Multiple Sclerosis? A Meta-Analytical Study, Hafiza Munazza Taj, Maryam Talib, Sania Siddiqa, Azza Sarfraz, Zouina Sarfraz, Karla Robles-Velasco, Ivan Cherrez-Ojeda
Department of Paediatrics and Child Health
Ofatumumab is a monoclonal antibody that reduces the level of B cells that alter the progression of relapsing multiple sclerosis. Originally approved by the Food and Drug Administration (FDA) in August 2020, this meta-analysis determines the outcomes of four randomized controlled trials (RCTs) for endline outcomes of Gadolinium-enhancing T1 lesions on MRI scans reported as Cohen's d and relapse rate reported as risk ratio. All four RCTs reported favorable findings of gadolinium-enhancing T1 lesions (Cohen's d = -0.44, p < 0.00001). The relapse rate was reduced by 46% post ofatumumab administration (RR = 0.54, p < 0.00001). With 14 ongoing trials in this area, more data is required to consolidate our findings.
Use Of High-Resolution Ultrasound To Guide Alcohol Neurolysis For Chronic Pain, Russell A. Reeves, Cole J. Miller, Dajie Wang, Andrew Ng, Joshua E. Heller, Levon N. Nazarian
Use Of High-Resolution Ultrasound To Guide Alcohol Neurolysis For Chronic Pain, Russell A. Reeves, Cole J. Miller, Dajie Wang, Andrew Ng, Joshua E. Heller, Levon N. Nazarian
Department of Radiology Faculty Papers
BACKGROUND: The diagnosis and treatment of neuropathic pain is often clinically challenging, with many patients requiring treatments beyond oral medications. To improve our percutaneous treatments, we established a clinical pathway that utilized ultrasound (US) guidance for steroid injection and alcohol ablation for patients with painful neuropathy.
OBJECTIVES: To describe a collaborative neuropathy treatment pathway developed by a neurosurgeon, pain physicians, and a sonologist, describing early clinical experiences and patient-reported outcomes.
STUDY DESIGN: A retrospective case series was performed.
METHODS: Patients that received percutaneous alcohol ablation with US guidance for neuropathy were identified through a retrospective review of a single provider's …
Pineal Cyst Apoplexy And Memory Loss: A Novel Complication, Areez Shafqat, Hanin Jaber Algethami, Shameel Shafqat, Syed Shafqat Ul Islam
Pineal Cyst Apoplexy And Memory Loss: A Novel Complication, Areez Shafqat, Hanin Jaber Algethami, Shameel Shafqat, Syed Shafqat Ul Islam
Medical College Documents
An 8-year-old boy presented to our hospital complaining of a bilateral headache associated with episodes of anterograde amnesia. He had a road traffic accident 3 years ago when a computed tomography (CT) scan revealed traumatic brain injury. In addition, a small pineal cyst (PC) was noted with minor intramural calcifications. A follow-up CT a day later demonstrated increased density in the pineal gland of 60 Hounsfield Units, suggestive of apoplectic changes in the PC. However, the patient was lost to follow-up and presented with memory loss a year and a half later, upon which CT and magnetic resonance imaging revealed …
Short Chain Fatty Acids Taken At Time Of Thrombectomy In Acute Ischemic Stroke Patients Are Independent Of Stroke Severity But Associated With Inflammatory Markers And Worse Symptoms At Discharge, Nicholas Henry, Jacqueline A. Frank, Christopher J. Mclouth, Amanda L. Trout, Andrew J. Morris, Jianzhong Chen, Ann M. Stowe, Justin F. Fraser, Keith R. Pennypacker
Short Chain Fatty Acids Taken At Time Of Thrombectomy In Acute Ischemic Stroke Patients Are Independent Of Stroke Severity But Associated With Inflammatory Markers And Worse Symptoms At Discharge, Nicholas Henry, Jacqueline A. Frank, Christopher J. Mclouth, Amanda L. Trout, Andrew J. Morris, Jianzhong Chen, Ann M. Stowe, Justin F. Fraser, Keith R. Pennypacker
Behavioral Science Faculty Publications
Introduction: Short chain fatty acids (SCFA) are gut microbiota-derived metabolites that contribute to the gut-brain axis and may impact stroke outcomes following gut dysbiosis. We evaluated plasma SCFA concentrations against stroke severity parameters and identified SCFA-associated protein networks.
Methods: The Blood and Clot Thrombectomy Registry and Collaboration (BACTRAC), a continuously enrolling tissue bank, was used to obtain stroke samples. Arterial blood distal and proximal to the thrombus was obtained from Acute Ischemic Stroke (AIS) Patients (n=53) during thrombectomy. Patient demographics, stroke presentation and outcome parameters were reported. The SCFAs were isolated from proximal plasma via chemical derivatization UHPLC coupled tandem …
Can Activated Titanium Interbody Cages Accelerate Or Enhance Spinal Fusion? A Review Of The Literature And A Design For Clinical Trials, Nathaniel Toop, Connor Gifford, Rouzbeh Motiei-Langroudi, Arghavan Farzadi, Daniel Boulter, Reza Forghani, H. Francis Farhadi
Can Activated Titanium Interbody Cages Accelerate Or Enhance Spinal Fusion? A Review Of The Literature And A Design For Clinical Trials, Nathaniel Toop, Connor Gifford, Rouzbeh Motiei-Langroudi, Arghavan Farzadi, Daniel Boulter, Reza Forghani, H. Francis Farhadi
Neurosurgery Faculty Publications
While spinal interbody cage options have proliferated in the past decade, relatively little work has been done to explore the comparative potential of biomaterial technologies in promoting stable fusion. Innovations such as micro-etching and nano-architectural designs have shown purported benefits in in vitro studies, but lack clinical data describing their optimal implementation. Here, we critically assess the pre-clinical data supportive of various commercially available interbody cage biomaterial, topographical, and structural designs. We describe in detail the osteointegrative and osteoconductive benefits conferred by these modifications with a focus on polyetheretherketone (PEEK) and titanium (Ti) interbody implants. Further, we describe the rationale …
Cessation And Resumption Of Elective Neurointerventional Procedures During The Coronavirus Disease 2019 Pandemic And Future Pandemics, Tim W. Malisch, Sameer A. Ansari, Gary R. Duckwiler, Kyle M. Fargen, Steven W. Hetts, Franklin A. Marden, Athos Patsalides, Clemens M. Schirmer, Allan Brook, Justin F. Fraser
Cessation And Resumption Of Elective Neurointerventional Procedures During The Coronavirus Disease 2019 Pandemic And Future Pandemics, Tim W. Malisch, Sameer A. Ansari, Gary R. Duckwiler, Kyle M. Fargen, Steven W. Hetts, Franklin A. Marden, Athos Patsalides, Clemens M. Schirmer, Allan Brook, Justin F. Fraser
Neurosurgery Faculty Publications
At the time of this writing, the coronavirus disease 2019 pandemic continues to be a global threat, disrupting usual processes, and protocols for delivering health care around the globe. There have been significant regional and national differences in the scope and timing of these disruptions. Many hospitals were forced to temporarily halt elective neurointerventional procedures with the first wave of the pandemic in the spring of 2020, in order to prioritize allocation of resources for acutely ill patients and also to minimize coronavirus disease 2019 transmission risks to non-acute patients, their families, and health care workers. This temporary moratorium on …
Longitudinal Changes Of Regional Myelin Water Fraction During First Year After Moderate-To-Severe Diffuse Traumatic Brain Injury, Likowsky L. Desir
Longitudinal Changes Of Regional Myelin Water Fraction During First Year After Moderate-To-Severe Diffuse Traumatic Brain Injury, Likowsky L. Desir
Dissertations, Theses, and Capstone Projects
Traumatic brain injury (TBI) is a worldwide health issue with a highly heterogeneous disease characterization, including widespread white matter damage in the brain. Most non-invasive white matter imaging methods currently available, including diffusion tensor imaging (DTI), cannot reliably measure the degree of neurodegeneration due to various confounds, making it challenging to select an endpoint measure for neuroprotective clinical trials. The present study investigates longitudinal white matter changes, measured by a novel imaging metric, apparent myelin water fraction (aMWF), and its relationship with neuropsychological measures during the first year after TBI. Data from 15 adult patients with moderate-to-severe TBI and 30 …
Intra-Arterial Combination Therapy For Experimental Acute Ischemic Stroke, Michael E. Maniskas, Jill M. Roberts, Amanda A. Gorman, Gregory J. Bix, Justin F. Fraser
Intra-Arterial Combination Therapy For Experimental Acute Ischemic Stroke, Michael E. Maniskas, Jill M. Roberts, Amanda A. Gorman, Gregory J. Bix, Justin F. Fraser
Neurosurgery Faculty Publications
Acute ischemic stroke continues to devastate millions of individuals worldwide. Current treatments work to restore blood flow but not rescue affected tissue. Our goal was to develop a combination of neuroprotective agents administered intra-arterially following recanalization to target ischemic tissue. Using C57Bl/6J male mice, we performed tandem transient ipsilateral middle cerebral/common carotid artery occlusion, followed by immediate intra-arterial pharmacotherapy administration through a standardized protocol. Two pharmacotherapy agents, verapamil and lubeluzole, were selected based on their potential to modulate different aspects of the ischemic cascade; verapamil, a calcium channel blocker, works in an acute fashion blocking L-type calcium channels, whereas lubeluzole, …
Smoking-Induced Sex Differences In Clinical Outcomes In Patients Undergoing Mechanical Thrombectomy For Stroke, Jacqueline A. Frank, Kara Jo Swafford, Jill M. Roberts, Amanda L. Trout, Ann M. Stowe, Douglas E. Lukins, Stephen Grupke, Keith R. Pennypacker, Justin F. Fraser
Smoking-Induced Sex Differences In Clinical Outcomes In Patients Undergoing Mechanical Thrombectomy For Stroke, Jacqueline A. Frank, Kara Jo Swafford, Jill M. Roberts, Amanda L. Trout, Ann M. Stowe, Douglas E. Lukins, Stephen Grupke, Keith R. Pennypacker, Justin F. Fraser
Neurology Faculty Publications
OBJECTIVE: Ischemic stroke is the fifth leading cause of death in the United States. Smoking accelerates the onset of stroke by 10 years. The effects of smoking status on percent change in National Institutes of Health Stroke Scale (NIHSS) score, infarct volume, and edema volume were examined following mechanical thrombectomy for large vessel occlusion in patients with acute ischemic stroke.
METHODS: Subjects (N = 90; >18 years old) were divided into 3 groups based on smoking status: current smokers, previous smokers (defined as having quit >6 months before the ischemic event), and nonsmokers. Percent change in NIHSS score was …
Intracranial Vcam1 At Time Of Mechanical Thrombectomy Predicts Ischemic Stroke Severity, Benton Maglinger, Madison Sands, Jacqueline A. Frank, Christopher J. Mclouth, Amanda L. Trout, Jill M. Roberts, Stephen Grupke, Jadwiga Turchan-Cholewo, Ann M. Stowe, Justin F. Fraser, Keith R. Pennypacker
Intracranial Vcam1 At Time Of Mechanical Thrombectomy Predicts Ischemic Stroke Severity, Benton Maglinger, Madison Sands, Jacqueline A. Frank, Christopher J. Mclouth, Amanda L. Trout, Jill M. Roberts, Stephen Grupke, Jadwiga Turchan-Cholewo, Ann M. Stowe, Justin F. Fraser, Keith R. Pennypacker
Behavioral Science Faculty Publications
BACKGROUND: Emergent large vessel occlusion (ELVO) strokes are devastating ischemic vascular events for which novel treatment options are needed. Using vascular cell adhesion molecule 1 (VCAM1) as a prototype, the objective of this study was to identify proteomic biomarkers and network signaling functions that are potential therapeutic targets for adjuvant treatment for mechanical thrombectomy.
METHODS: The blood and clot thrombectomy and collaboration (BACTRAC) study is a continually enrolling tissue bank and registry from stroke patients undergoing mechanical thrombectomy. Plasma proteins from intracranial (distal to clot) and systemic arterial blood (carotid) were analyzed by Olink Proteomics for N=42 subjects. Statistical …
Method Of Intra-Arterial Drug Administration In A Rat: Sex Based Optimization Of Infusion Rate, Sarah J. Messmer, Justin F. Fraser, Keith R. Pennypacker, Jill M. Roberts
Method Of Intra-Arterial Drug Administration In A Rat: Sex Based Optimization Of Infusion Rate, Sarah J. Messmer, Justin F. Fraser, Keith R. Pennypacker, Jill M. Roberts
Center for Advanced Translational Stroke Science Faculty Publications
BACKGROUND: Endovascular thrombectomy is the process of removing a blood clot and re-establishing blood flow in patients with emergent large vessel occlusion. The technique provides an opportunity to deliver therapeutics directly to the site of injury. The intra-arterial (IA) route of drug administration in the mouse was developed to bridge the gap between animal stroke treatments and clinical stroke therapy. Here, we adapted the IA method for use in rats, by investigating various flow rates to optimize the IA injection through the internal carotid artery (ICA).
METHODS: Male and female Sprague-Dawley rats (∼4 months of age) were subjected to placement …
Endovascular Coil Embolization Of Ruptured And Unruptured Intracranial Aneurysms: Review Of A 15 Year Single Center Experience In Pakistan, Misha Khalid Khan, Muhammad Danish Barakzai, Mustafa Belal Hafeez Chaudhry, Tanveer Ul Haq, Muhammad Ehsan Bari, Raza Sayani
Endovascular Coil Embolization Of Ruptured And Unruptured Intracranial Aneurysms: Review Of A 15 Year Single Center Experience In Pakistan, Misha Khalid Khan, Muhammad Danish Barakzai, Mustafa Belal Hafeez Chaudhry, Tanveer Ul Haq, Muhammad Ehsan Bari, Raza Sayani
Department of Radiology
Objective: To assess the outcome of endovascular treatment of intracranial aneurysm over 15 years.
Methods: The retrospective study was conducted at the at Radiology Department of Aga Khan University Hospital, Karachi, and comprised medical records from April 2003 to April 2018 of patients who received endovascular treatment for intracranial aneurysm. Multiple variables reviewed included demographics, clinical presentation, aneurysm morphology, technique used, technique outcome and clinical outcome. Data was analysed using SPSS 22.
Results: Of the 242 patients, 111(45.8%) were males and 131(54.1%) were female. The overall mean age was 46.3+/-13.543 years (range: 9-78years). Aneurysm size was <5mm in 95(40.4%) patients, 5-10mm in 98(41.7%) and >10mm in 42(17.9%) patients. …5mm>
A Multidisciplinary Approach To Triage Patients With Breast Disease During The Covid-19 Pandemic: Experience From A Tertiary Care Center In The Developing World, Abida K. Sattar, Hania Shahzad, Adnan Abdul Jabbar, Azmina Tajdin Valimohammad, Sadaf Khan, Yasmin Vellani, Romana Idrees, Nasir Ali, Imrana Masroor, Humera Saeed, Gulzar S. Lakhani, Nadia Ayoub, Atif Waqar, Muhammad Zia-Ul Islam, Salman Kirmani, Asad Latif, Ather Enam
A Multidisciplinary Approach To Triage Patients With Breast Disease During The Covid-19 Pandemic: Experience From A Tertiary Care Center In The Developing World, Abida K. Sattar, Hania Shahzad, Adnan Abdul Jabbar, Azmina Tajdin Valimohammad, Sadaf Khan, Yasmin Vellani, Romana Idrees, Nasir Ali, Imrana Masroor, Humera Saeed, Gulzar S. Lakhani, Nadia Ayoub, Atif Waqar, Muhammad Zia-Ul Islam, Salman Kirmani, Asad Latif, Ather Enam
Section of General Surgery
Background: The COVID-19 pandemic has created a need to prioritize care because of limitation of resources. Owing to the heterogeneity and high prevalence of breast cancers, the need to prioritize care in this vulnerable population is essential. While various medical societies have published recommendations to manage breast disease during the COVID-19 pandemic, most are focused on the Western world and do not necessarily address the challenges of a resource-limited setting.
Aim: In this article, we describe our institutional approach for prioritizing care for patients presenting with breast disease.
Methods and results: The breast disease management guidelines were developed and approved …
Role Of Preoperative Embolization In Management Of Central Nervous System Tumours, Ummey Hani, Ahmer Nasir Baig, Muhammad Shahzad Shamim, Basit Salam
Role Of Preoperative Embolization In Management Of Central Nervous System Tumours, Ummey Hani, Ahmer Nasir Baig, Muhammad Shahzad Shamim, Basit Salam
Section of Neurosurgery
Preoperative embolization plays a significant role as an adjunct to surgical intervention in the cases of certain vascular tumours of the brain. While the procedure has resulted in facilitated resection of the tumour, and has reduced morbidity and mortality, its application remains debatable within the neurosurgical community, owing to rare, but major post-procedural complications. Herein, we have reviewed the literature to assess the safety and efficacy of preoperative angiographic embolization for brain tumours.
Magnetic Resonance Neuroblate Fusion For Treating Glioblastomas, Amanda Goldy
Magnetic Resonance Neuroblate Fusion For Treating Glioblastomas, Amanda Goldy
Student Research Poster Presentations 2021
The Neuroblate Fusion system utilizes magnetic resonance guided laser therapy to ablate tumors and lesions. The system requires the use of Laser Interstitial Thermo Therapy (LITT) to activate thermocoagulation and focus of tissue destruction. This is a minimally invasive alternative to traditional brain surgery, giving patients a shorter recovery time and fewer complications. Neuroblate Fusion may also be an additional treatment to chemotherapy or radiation therapy. Neuroblate Fusion is best used for treating glioblastomas in the brain and occasionally for reducing the potential for seizures. Under sterile conditions, a small burr hole is made in the patient’s skull which allows …
Commentary: Use Of Bactrac Proteomic Database-Uromodulin Protein Expression During Ischemic Stroke, Gabriella-Salome K. Armstrong, Jacqueline A. Frank, Christopher J. Mclouth, Ann M. Stowe, Jill M. Roberts, Amanda L. Trout, Justin F. Fraser, Keith R. Pennypacker
Commentary: Use Of Bactrac Proteomic Database-Uromodulin Protein Expression During Ischemic Stroke, Gabriella-Salome K. Armstrong, Jacqueline A. Frank, Christopher J. Mclouth, Ann M. Stowe, Jill M. Roberts, Amanda L. Trout, Justin F. Fraser, Keith R. Pennypacker
Neurology Faculty Publications
Introduction: Uromodulin (UMOD) is a glycoprotein expressed by the epithelial cells of the thick ascending limb of Henle's loop in the kidney. Research has shown that increased uromodulin expression may be associated with lower risk of cardiovascular disease in adults. Utilizing the Blood and Clot Thrombectomy Registry and Collaboration (BACTRAC) (clinicaltrials.gov NCT03153683), a continuously enrolling tissue bank, we aimed to examine the associations between serum uromodulin, age, and high BMI (BMI> 25) and its relationship to stroke in patients.
Methods: Arterial blood distal and proximal to the thrombus was collected during a thrombectomy procedure using the BACTRAC protocol and sent …
Conference Proceedings: Aurora Scientific Day 2020
Conference Proceedings: Aurora Scientific Day 2020
Journal of Patient-Centered Research and Reviews
Abstracts published in this supplement were among those presented at the 46th annual Aurora Scientific Day research symposium, held virtually on May 20, 2020. The symposium provides a forum for describing research studies conducted by faculty, fellows, residents, and allied health professionals affiliated with Wisconsin-based Aurora Health Care, a part of the Advocate Aurora Health health system, which publishes the Journal of Patient-Centered Research and Reviews.
Brain Injury And Dementia In Pakistan: Current Perspectives, Maheen M. Adamson, Sadia Shakil, Tajwar Sultana, Muhammad Abul Hasan, Fatima Mubarak, Ather Enam, Muhammad A. Parvaz, Adeel Razi
Brain Injury And Dementia In Pakistan: Current Perspectives, Maheen M. Adamson, Sadia Shakil, Tajwar Sultana, Muhammad Abul Hasan, Fatima Mubarak, Ather Enam, Muhammad A. Parvaz, Adeel Razi
Department of Radiology
Alzheimer's disease (AD) is the most common form of dementia, accounting for 50-75% of all cases, with a greater proportion of individuals affected at older age range. A single moderate or severe traumatic brain injury (TBI) is associated with accelerated aging and increased risk for dementia. The fastest growth in the elderly population is taking place in China, Pakistan, and their south Asian neighbors. Current clinical assessments are based on data collected from Caucasian populations from wealthy backgrounds giving rise to a "diversity" crisis in brain research. Pakistan is a lower-middle income country (LMIC) with an estimated one million people …