Publications by authors named "Brett C Meyer"

Background And Purpose: Though Event Monitors (EM) and Implantable Loop Recorders (ILR) are prevalent in stroke workups, complex processes to obtain placement of these device might result in delays. Our aim was to determine if the CONNECT (Coordinating Options for Neurovascular patients Needing Electrophysiology Consults and Treatments) pathway could improve Stroke-to-Electrophysiology (EP) communications, increase EM and ILR device placements prior to discharge, shorten placement time, and preserve satisfaction.

Methods: We assessed device placements when an EP consult was obtained [Pre-CONNECT (5/1/21-4/30/22), CONNECT (5/1/22-4/30/23)] for patients with stroke.

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Centers for Medicare & Medicaid Services provides reimbursement through Hierarchical Condition Category (HCC) coding. Medical systems strive toward risk adjustment optimization, often implementing costly chart review processes. Previously, our organization implementing countermeasures through workflows was complex and performed in silos.

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Background: Transcranial Doppler (TCD) is a non-invasive, bedside tool that allows for real-time monitoring of the patient's hemodynamic status following mechanical thrombectomy (MT). This systematic review and meta-analysis aims to evaluate the predictive value of TCD parameters following successful MT (Thrombolysis in Cerebral Infarction 2b-3).

Methods: In July 2024, we searched PubMed, Embase, and Scopus, to identify observational studies in which TCD parameters were measured within 48 hours of MT.

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Telemedicine for stroke (Telestroke) has been a key component to efficient, widespread acute stroke care for many years. The expansion of reimbursement through the Furthering Access to Stroke Telemedicine Act and rapid deployment of telemedicine resources during the COVID-19 public health emergency have further expanded remote care, with practitioners of varying educational backgrounds, and experience providing acute stroke care via telemedicine (Telestroke). Some Telestroke practitioners have not had fellowship-level vascular neurology training and many are without training specific to virtual modalities.

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Augmented reality enables the wearer to see both their physical environment and virtual objects. Holograms could allow 3D video of providers to be transmitted to distant sites, allowing patients to interact with virtual providers as if they are in the same physical space. Our aim was to determine if Tele-Stroke augmented with Holo-Stroke, compared with Tele-Stroke alone, could improve satisfaction and perception of immersion for the patient.

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Aim: To examine the influence of interpreter service needs (IS) on rt-PA administration time metrics.

Methods: Retrospectively reviewed prospectively collected data from Comprehensive Stroke Center database (January 2011- April 1, 2021) and EMR.

Inclusion: Subjects for whom a "stroke code" was activated.

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Background: Stroke AI platforms assess infarcted core and potentially salvageable tissue (penumbra) to identify patients suitable for mechanical thrombectomy. Few studies have compared outputs of these platforms, and none have been multicenter or considered NIHSS or scanner/protocol differences. Our objective was to compare volume estimates and thrombectomy eligibility from two widely used CT perfusion (CTP) packages, Viz.

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Background And Purpose: Cerebral vasomotor reactivity (VMR) is vital for regulating brain blood flow and maintaining neurological function. Impaired cerebral VMR is linked to a higher risk of stroke and poor post-stroke outcomes. This study explores the relationship between statin treatment intensity and VMR in patients with ischemic stroke.

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Objectives: As Comprehensive Stroke Centers (CSCs) strive to improve neuro-intervention (NIR) times, process improvements are put in place to streamline workflows. Our prior publication (VISIION) demonstrated improvements in key performance indicators (KPIs). The purpose VISIION-S was to analyze whether those results were sustainable.

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Background And Objectives: Telemedicine bridges the gap between care needs and provider availability. The value of telemedicine can be eclipsed by long wait times, especially if patients are stuck in virtual waiting rooms. UCSD Tele-Untethered allows patients to join visits without waiting in virtual waiting rooms.

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While use of telemedicine to guide emergent treatment of ischemic stroke is well established, the COVID-19 pandemic motivated the rapid expansion of care via telemedicine to provide consistent care while reducing patient and provider exposure and preserving personal protective equipment. Temporary changes in re-imbursement, inclusion of home office and patient home environments, and increased access to telehealth technologies by patients, health care staff and health care facilities were key to provide an environment for creative and consistent high-quality stroke care. The continuum of care via telestroke has broadened to include prehospital, inter-facility and intra-facility hospital-based services, stroke telerehabilitation, and ambulatory telestroke.

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Purpose: Intravenous Thrombolysis (IV rt-PA) is administered in <10% of ischemic stroke patients. In rare cases, patients or caregivers refuse IV rt-PA treatment even when recommended by stroke practitioners. We sought to assess the characteristics and outcomes of patients who refuse IV rt-PA for acute ischemic stroke, and to compare outcomes between those who were treated with IV rt-PA and those who refused.

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The authors draw upon their experience with a successful, enterprise-level, telemedicine program implementation to present a "How To" paradigm for other academic health centers that wish to rapidly deploy such a program in the setting of the COVID-19 pandemic. The advent of social distancing as essential for decreasing viral transmission has made it challenging to provide medical care. Telemedicine has the potential to medically undistance health care providers while maintaining the quality of care delivered and fulfilling the goal of social distancing.

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Background: Isolated mental status changes as a presenting sign (EoSC+), are not uncommon stroke code triggers. As stroke alerts, they still require the same intensive resources be applied. We previously showed that EoSC+ strokes (EoSC+ Stroke+) account for 0.

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Background And Purpose: The COVID-19 pandemic has required the adaptation of hyperacute stroke care (including stroke code pathways) and hospital stroke management. There remains a need to provide rapid and comprehensive assessment to acute stroke patients while reducing the risk of COVID-19 exposure, protecting healthcare providers, and preserving personal protective equipment (PPE) supplies. While the COVID infection is typically not a primary cerebrovascular condition, the downstream effects of this pandemic force adjustments to stroke care pathways to maintain optimal stroke patient outcomes.

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Background Intravenous (IV) tissue plasminogen activator (rt-PA) is a proven therapy for stroke in the acute treatment window. Recent published data has shown efficacy for embolectomy for acute ischemic strokes within up to six, 16 and 24 hours in the anterior circulation but there is no guideline for optimal therapy for patients with posterior circulation stroke, specifically basilar artery occlusion (BAO) outside the standard IV rt-PA treatment window. Aim To evaluate differences in outcomes between maximal medical treatment versus thrombectomy in BAO.

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Objective: To study the rate of symptomatic intracerebral hemorrhage (SxICH) and major systemic hemorrhage (MSH) after acute stroke treatments among different ethnicities/races.

Background: Studies have reported ethnic/racial disparities in intravenous tPA treatment (IV tPA). The adverse outcome of tPA and/or intra-arterial intervention (IA) among different ethnicities/races requires investigation.

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Introduction: Identifying predictors of good response in thrombolytic-treated stroke is important to clinical care, resource allocation, and research design. We developed a simple, novel measure of "Good Responders" to assess if 2 short-term variables could predict 90-day outcomes after thrombolysis in stroke.

Methods: Intravenous thrombolysis-treated stroke cases from June 2004 to June 2018 were analyzed from a stroke registry.

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Background: We investigated patterns in the time from recombinant tissue-type plasminogen activator (rt-PA) treatment to symptomatic intracranial hemorrhage (sICH) onset in acute ischemic stroke.

Methods: We retrospectively reviewed all admitted "stroke code" patients from 2003 to 2017 at the University of California San Diego Medical Center from a prospective stroke registry. We selected patients that received IV rt-PA within 4.

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Background And Purpose: Identifying a last known well (LKW) time surrogate for acute stroke is vital to increase stroke treatment. Diffusion-weighted imaging (DWI) signal intensity initially increases from onset of stroke but mapping a reliable time course to the signal intensity has not been demonstrated.

Methods: We retrospectively reviewed stroke code patients between 1/2016 and 6/2017 from the prospective; Institutional review board (IRB) approved University of California San Diego Stroke Registry.

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Stroke codes prompted by isolated encephalopathy often result in nonstroke final diagnoses but require intensive stroke center resources. We assessed the likelihood of "Encephalopathy only Stroke Codes (EoSC)" resulting in a true stroke (EoSC CVA+) final diagnosis. 3860 patients were analyzed in a prospective stroke code registry from 2004 to 2016.

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Within the field of neurology, there has been limited discussion of how to best respect patient autonomy in patients presenting with an acute stroke, who often have impairments in language and cognition. In addition to performing a detailed neurologic examination and providing a thorough timeline of their current presentation and medical history, these patients and their families are then asked to quickly make critical medical decisions regarding acute stroke therapies (thrombolysis and endovascular therapy). These discussions are often limited by time constraints and inadequate opportunities for patient education regarding acute stroke care.

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Background: Acute stroke codes may be activated for anisocoria, but how often these codes lead to a final stroke diagnosis or alteplase treatment is unknown. The purpose of this study was to assess the frequency of anisocoria in stroke codes that ultimately resulted in alteplase administration.

Methods: We retrospectively assessed consecutive alteplase-treated patients from a prospectively-collected stroke registry between February 2015 and July 2018.

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Background and Purpose- The 2015 updated US Food and Drug Administration alteplase package insert altered several contraindications. We thus explored clinical factors influencing alteplase treatment decisions for patients with minor stroke. Methods- An expert panel selected 7 factors to build a series of survey vignettes: National Institutes of Health Stroke Scale (NIHSS), NIHSS area of primary deficit, baseline functional status, previous ischemic stroke, previous intracerebral hemorrhage, recent anticoagulation, and temporal pattern of symptoms in first hour of care.

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Introduction: Rapid imaging in acute stroke is critical and often occurs before full examination. Early, reliable examination findings clarify diagnosis and improve treatment times. The DeyeCOM sign has been described as a predictor of ischemic stroke.

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