1.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
Emmanuel O. MENSAH ; MerryJean LOSSO ; Sandeep MURAM ; Sandeep KUMAR ; Christopher S. OGILVY
Journal of Neurocritical Care 2024;17(2):79-83
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 alterations and the presence of imaging artifacts. Case Report: This case report describes an adult post-heart transplant patient on peripheral VA-ECMO who developed left-sided hemiparesis, suggestive of cerebrovascular events. While our patient developed multifocal ischemic infarcts, the initial computed tomography perfusion (CTP) imaging indicated hypoperfusion of the entire right hemisphere. Given the discrepancy in the patient’s clinical assessment, which was suggestive of a more circumscribed right hemispheric involvement, and the CTP findings, subsequent digital subtraction angiography was performed, which demonstrated adequate vascular filling with no large vessel occlusion.
Conclusion
These findings highlight the diagnostic complexities of ECMO-related artifacts, even in the presence of neurological complications that can mimic true perfusion deficits and potentially lead to misdiagnosis.
2.Deconstructive repair of a direct carotid-cavernous fistula via a posterior circulation retrograde approach
Jonathan R. CROWE ; Robert W. REGENHARDT ; Adam A. DMYTRIW ; Justin E. VRANIC ; Christopher J. STAPLETON ; Aman B. PATEL
Journal of Cerebrovascular and Endovascular Neurosurgery 2024;26(4):394-398
We report a case of a 24-year-old patient who presented after a head trauma with a traumatic occlusion of his left internal carotid artery. He underwent diagnostic cerebral angiogram and was found to have a direct left carotid-cavernous fistula (CCF) with retrograde filling from the posterior circulation across the posterior communicating artery. Because of the severe injury to the left internal carotid artery (ICA), reconstructive repair of the ICA was not possible. The patient underwent deconstructive repair of the CCF by coil embolization using a posterior retrograde approach. Coils were successfully placed in the cavernous sinus and back into the left ICA with complete cure of the CCF and restoration of cerebral perfusion distal to the treated CCF. We review the types of CCFs, their clinical presentation, and their endovascular treatments. Retrograde access of a direct CCF is rarely reported in the literature, and we believe this approach offers a viable alternative in appropriately selected patients.
3.Deconstructive repair of a direct carotid-cavernous fistula via a posterior circulation retrograde approach
Jonathan R. CROWE ; Robert W. REGENHARDT ; Adam A. DMYTRIW ; Justin E. VRANIC ; Christopher J. STAPLETON ; Aman B. PATEL
Journal of Cerebrovascular and Endovascular Neurosurgery 2024;26(4):394-398
We report a case of a 24-year-old patient who presented after a head trauma with a traumatic occlusion of his left internal carotid artery. He underwent diagnostic cerebral angiogram and was found to have a direct left carotid-cavernous fistula (CCF) with retrograde filling from the posterior circulation across the posterior communicating artery. Because of the severe injury to the left internal carotid artery (ICA), reconstructive repair of the ICA was not possible. The patient underwent deconstructive repair of the CCF by coil embolization using a posterior retrograde approach. Coils were successfully placed in the cavernous sinus and back into the left ICA with complete cure of the CCF and restoration of cerebral perfusion distal to the treated CCF. We review the types of CCFs, their clinical presentation, and their endovascular treatments. Retrograde access of a direct CCF is rarely reported in the literature, and we believe this approach offers a viable alternative in appropriately selected patients.
4.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
Emmanuel O. MENSAH ; MerryJean LOSSO ; Sandeep MURAM ; Sandeep KUMAR ; Christopher S. OGILVY
Journal of Neurocritical Care 2024;17(2):79-83
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 alterations and the presence of imaging artifacts. Case Report: This case report describes an adult post-heart transplant patient on peripheral VA-ECMO who developed left-sided hemiparesis, suggestive of cerebrovascular events. While our patient developed multifocal ischemic infarcts, the initial computed tomography perfusion (CTP) imaging indicated hypoperfusion of the entire right hemisphere. Given the discrepancy in the patient’s clinical assessment, which was suggestive of a more circumscribed right hemispheric involvement, and the CTP findings, subsequent digital subtraction angiography was performed, which demonstrated adequate vascular filling with no large vessel occlusion.
Conclusion
These findings highlight the diagnostic complexities of ECMO-related artifacts, even in the presence of neurological complications that can mimic true perfusion deficits and potentially lead to misdiagnosis.
5.Deconstructive repair of a direct carotid-cavernous fistula via a posterior circulation retrograde approach
Jonathan R. CROWE ; Robert W. REGENHARDT ; Adam A. DMYTRIW ; Justin E. VRANIC ; Christopher J. STAPLETON ; Aman B. PATEL
Journal of Cerebrovascular and Endovascular Neurosurgery 2024;26(4):394-398
We report a case of a 24-year-old patient who presented after a head trauma with a traumatic occlusion of his left internal carotid artery. He underwent diagnostic cerebral angiogram and was found to have a direct left carotid-cavernous fistula (CCF) with retrograde filling from the posterior circulation across the posterior communicating artery. Because of the severe injury to the left internal carotid artery (ICA), reconstructive repair of the ICA was not possible. The patient underwent deconstructive repair of the CCF by coil embolization using a posterior retrograde approach. Coils were successfully placed in the cavernous sinus and back into the left ICA with complete cure of the CCF and restoration of cerebral perfusion distal to the treated CCF. We review the types of CCFs, their clinical presentation, and their endovascular treatments. Retrograde access of a direct CCF is rarely reported in the literature, and we believe this approach offers a viable alternative in appropriately selected patients.
6.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
Emmanuel O. MENSAH ; MerryJean LOSSO ; Sandeep MURAM ; Sandeep KUMAR ; Christopher S. OGILVY
Journal of Neurocritical Care 2024;17(2):79-83
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 alterations and the presence of imaging artifacts. Case Report: This case report describes an adult post-heart transplant patient on peripheral VA-ECMO who developed left-sided hemiparesis, suggestive of cerebrovascular events. While our patient developed multifocal ischemic infarcts, the initial computed tomography perfusion (CTP) imaging indicated hypoperfusion of the entire right hemisphere. Given the discrepancy in the patient’s clinical assessment, which was suggestive of a more circumscribed right hemispheric involvement, and the CTP findings, subsequent digital subtraction angiography was performed, which demonstrated adequate vascular filling with no large vessel occlusion.
Conclusion
These findings highlight the diagnostic complexities of ECMO-related artifacts, even in the presence of neurological complications that can mimic true perfusion deficits and potentially lead to misdiagnosis.
7.Preclinical study of a novel ingestible bleeding sensor for upper gastrointestinal bleeding
Kimberly F. SCHUSTER ; Christopher C. THOMPSON ; Marvin RYOU
Clinical Endoscopy 2024;57(1):73-81
Background/Aims:
Upper gastrointestinal bleeding (UGIB) is a life-threatening condition that necessitates early identification and intervention and is associated with substantial morbidity, mortality, and socioeconomic burden. However, several diagnostic challenges remain regarding risk stratification and the optimal timing of endoscopy. The PillSense System is a noninvasive device developed to detect blood in patients with UGIB in real time. This study aimed to assess the safety and performance characteristics of PillSense using a simulated bleeding model.
Methods:
A preclinical study was performed using an in vivo porcine model (14 animals). Fourteen PillSense capsules were endoscopically placed in the stomach and blood was injected into the stomach to simulate bleeding. The safety and sensitivity of blood detection and pill excretion were also investigated.
Results:
All the sensors successfully detected the presence or absence of blood. The minimum threshold was 9% blood concentration, with additional detection of increasing concentrations of up to 22.5% blood. All the sensors passed naturally through the gastrointestinal tract.
Conclusions
This study demonstrated the ability of the PillSense System sensor to detect UGIB across a wide range of blood concentrations. This ingestible device detects UGIB in real time and has the potential to be an effective tool to supplement the current standard of care. These favorable results will be further investigated in future clinical studies.
8.Symptomatic perianeursymal cyst development 20 years after endovascular treatment of a ruptured giant aneurysm: Case report and updated review
Amy J. WANG ; Justin E. VRANIC ; Robert W. REGENHARDT ; Adam A. DMYTRIW ; Christine K. LEE ; Cameron SADEGH ; James D. RABINOV ; Christopher J. STAPLETON
Journal of Cerebrovascular and Endovascular Neurosurgery 2024;26(2):187-195
Perianeurysmal cysts are a rare and poorly understood finding in patients both with treated and untreated aneurysms. While the prior literature suggests that a minority of perianeurysmal cysts develop 1-4 years following endovascular aneurysm treatment, this updated review demonstrates that nearly half of perianeurysmal cysts were diagnosed following aneurysm coiling, with the other half diagnosed concurrently with an associated aneurysm prior to treatment. 64% of perianeurysmal cysts were surgically decompressed, with a 39% rate of recurrence requiring re-operation. We report a case of a 71-year-old woman who presented with vertigo and nausea and was found to have a 3.4 cm perianeurysmal cyst 20 years after initial endovascular coiling of a ruptured giant ophthalmic aneurysm. The cyst was treated with endoscopic fenestration followed by open fenestration upon recurrence. The case represents the longest latency from initial aneurysm treatment to cyst diagnosis reported in the literature and indicates that the diagnosis of perianeurysmal cyst should remain on the differential even decades after treatment. Based on a case discussion and updated literature review, this report highlights proposed etiologies of development and management strategies for a challenging lesion.
9.Intracranial stenting compared to medical treatment alone for intracranial atherosclerosis patients: An updated meta-analysis
Adam A. DMYTRIW ; Jerry KU ; Ahmed Y. AZZAM ; Osman ELAMIN ; Nicole CANCELLIERE ; Anish KAPADIA ; James D. RABINOV ; Christopher J. STAPLETON ; Robert W. REGENHARDT ; Vitor Mendes PEREIRA ; Aman B. PATEL ; Victor X.D. YANG
Journal of Cerebrovascular and Endovascular Neurosurgery 2024;26(2):152-162
Objective:
Stroke is the second-leading cause of death globally. Intracranial atherosclerotic stenosis (ICAS) represents 10-15% of ischemic strokes in Western countries and up to 47% in Asian countries. Patients with ICAS have an especially high risk of stroke recurrence. The aim of this meta-analysis is to reassess recurrent stroke, transient ischemic attack (TIA), and other outcomes with stenting versus best medical management for symptomatic ICAS.
Methods:
The search protocol was developed a priori according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. The OVID Medline, Embase, Web of Science, and Cochrane Library databases were searched from inception to August 14th, 2022.
Results:
This Meta-analysis Included Four Randomized Controlled Trials (Rcts), With A Total Number Of 991 Patients. The Mean Age Of Participants Was 57 Years. The Total Number Of Intracranial Stenting Patients Was 495, And The Number Of Medical Treatment Patients Was 496. The Included Studies Were Published Between 2011 And 2022. Two Studies Were Conducted In The Usa, And The Other Two In China. All Included Studies Compared Intracranial Stenting To Medical Treatment For Icas.
Conclusions
In patients with ischemic stroke due to symptomatic severe intracranial atherosclerosis, the rate of 30-day ischemic stroke, 30-day intracerebral hemorrhage, one-year stroke in territory or mortality favored the medical treatment alone without intracranial stenting. The risk of same-territory stroke at last follow-up, disabling stroke at last follow-up, and mortality did not significantly favor either group. Intracranial stenting for atherosclerosis did not result in significant benefit over medical treatment.
10.Family members’ experiences as simulated patients in physical therapy performance-based assessments: A phenomenological exploration protocol.
Donald Lipardo ; Christopher Cruz ; Nisrene Ayn Abubakar ; Francis Miguel Almaria ; Kaitlynne Dominique Bermio ; Ma. Ysabelle Therese Espinosa ; Hilario Favila III ; Danielle Iana Magallanes ; Mitchie Joy Mercader ; Jeff Matthew Pimenta ; Teresa Marie Santos
Philippine Journal of Allied Health Sciences 2023;6(2):12-18
BACKGROUND:
The Covid-19 pandemic caused educational institutions to shift from traditional to distance learning. Higher educational institutions
offering bachelor’s degrees in Physical Therapy (PT) adapted to the situation by employing various strategies to facilitate learning online. One of
the strategies employed is inviting family members as simulated patients in various performance-based assessments (PBA). In the Philippines, the
PT department at the University of Santo Tomas made similar changes in the delivery of its courses. Given that family members are one of the
primary stakeholders of PT education, it is important to know their experience, insights, and knowledge gained about the profession of PT after
playing as a simulated patient (SP) during online performance-based assessments.
OBJECTIVES:
This study aims to explore how family members describe their experiences playing the role of patients in PT PBAs.
METHODS:
This study will utilize a phenomenological explorative research design.
Family members, including parents, siblings, grandparents, cousins, and household helpers who played the role of a patient in any PT PBAs such as
case presentation, case discussion, and practical examination, will be invited to participate. Semi-structured one-on-one interviews will be used for
data gathering. Qualitative data from interview transcriptions will be analyzed using thematic analysis using NVivo 12 plus program.
EXPECTED RESULTS
Family Members will offer experiences in role-playing as patients in PBAs. Main themes and findings will be generated from their sharing that will provide insights regarding the improvement of remote PT PBAs.


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