Publications by authors named "Garrett Thomas"

Objective: Mean levels of cognitive functioning typically do not show an association with self-reported cognitive fatigue in persons with multiple sclerosis (PwMS), but some studies indicate that has an association with cognitive fatigue. Additionally, coping has been shown to be a powerful moderator of some outcomes in multiple sclerosis (MS). To date, however, coping has not been considered as a possible moderator of the relationship between cognitive fatigue and cognitive in MS.

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Purpose: Our aim is to assess the potential of an MR system with ultrahigh performance gradients (200 mT/m maximum gradient strength) to address two interrelated challenges in cardiac DTI: low SNR and sensitivity to bulk motion.

Methods: Imaging was performed in 20 healthy volunteers, two patients, and one swine post-myocardial infarction. The impact of maximum gradient strength was assessed with spin echo cardiac DTI featuring second-order motion compensation and varying maximum system gradient strengths (40, 80, 200 mT/m).

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Background: There is limited research examining whether mental health problems increase the risk for future concussions, even though these problems are highly prevalent in college-aged populations-including student-athletes.

Purpose/hypothesis: To examine whether affective disturbance (ie, depressive and anxiety symptoms) at baseline increases the risk for prospective concussion. It was hypothesized that athletes with co-occurring depressive/anxiety symptoms would incur the greatest risk for injury.

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Objective: Little is known about the relationship between neuropsychological test performance, cognitive symptom reporting, and depressive symptoms after sport-related concussion. Accordingly, this cross-sectional study examined these relationships in collegiate athletes. It was hypothesized that depressive symptoms would moderate and mediate the relationship between performance-based and self-reported cognitive functioning after concussion.

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Objective: The present study examined physical activity as a possible moderator in the relationship between pain and depressive symptoms among persons with multiple sclerosis (PwMS).

Method: Fifty-three PwMS completed a comprehensive neuropsychological test battery and psychosocial questionnaires. Pain was operationalized as a composite of measures from the Brief Pain Inventory.

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To investigate cognitive reserve as a possible moderator in the relationship between fatigue and depressive symptoms in persons with multiple sclerosis (PwMS). Fifty-three PwMS (37 female; mean age, 52.66; mean education, 14.

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Objective: Research on the neurocognitive effects of comorbid mood/anxiety disturbance in college athletes is limited. Previous research found that athletes with comorbid depression/anxiety performed worse on measures of attention/processing speed (A/PS) at baseline compared to healthy controls. However, this work solely examined mean performance.

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Article Synopsis
  • Obesity negatively impacts heart health and metabolism, prompting a study on how bariatric surgery affects cardiac function in obese individuals.
  • The study involved 13 participants who underwent cardiac imaging before and after surgery, revealing significant weight loss, reduced heart mass, and improved heart function in those who completed the follow-up.
  • Results showed that bariatric surgery not only decreased body mass index but also normalized heart energetics, indicating enhanced cardiac metabolism post-surgery.
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Article Synopsis
  • The study explores the combination of simultaneous multislice (SMS) and region-optimized virtual coils (ROVir) for improved CINE imaging in a single breath-hold.
  • ROVir allows for reduced field of view imaging by focusing on a specific region and limiting interference from other regions, aimed at achieving better quality heart scans.
  • The results showed that while using just SMS or ROVir led to poor image quality, their combination significantly reduced aliasing and produced comparable measures of heart function similar to standard methods.
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Background: Self- and informant-report measures are often useful in predicting objective cognitive performance; however, the relationship between these reports and mood, anxiety, and fatigue requires further examination. Additionally, it remains unclear as to how these factors might be associated with objective neurocognitive performance.

Methods: Eighty-six persons with multiple sclerosis (PwMS; F = 65, M = 21) completed a comprehensive neuropsychological battery that included objective neurocognitive measures, subjective reports of neurocognitive function with the Multiple Sclerosis Neuropsychological Screening Questionnaire (MSNQ) Self-Report (MSNQ-S) and Informant-Report (MSNQ-I), and self-report measures of anxiety, depression, and fatigue.

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Objective: To examine the relationship between sleep disturbance and functional outcomes following a concussion. Also, to explore athlete and injury-related variables that may be related to risk factors for poor sleep following concussion.

Method: 124 collegiate athletes completed a neuropsychological evaluation within 14 days of sustaining a sport-related concussion (SRC).

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Context: Poor sleep is common in collegiate student-athletes and is associated with heterogeneous self-reported complaints at baseline. However, the long-term implications of poor sleep at baseline have been less well studied.

Objective: To examine the implications of insufficient sleep at baseline, as well as factors such as symptom reporting and neurocognitive performance at baseline associated with insufficient sleep, for the risk of sport-related concussion (SRC).

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Objective: The present study examined coping style as a possible moderator in the relationship between pain and depression in persons with multiple sclerosis (PwMS).

Methods: Fifty-four PwMS completed a comprehensive neuropsychological test battery and psychosocial questionnaires that assessed physical, cognitive, and emotional functioning. Using four pain indices (i.

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Objective: Persons with multiple sclerosis (PwMS) are at increased risk for cognitive dysfunction. Considering the impact and potential ramifications of cognitive dysfunction, it is important that cognition is routinely assessed in PwMS. Thus, it is also important to identify a screener that is accurate and sensitive to MS-related cognitive difficulties, which can inform decisions for more resource-intensive neuropsychological testing.

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Objectives: The current study explored how affective disturbances, particularly concomitant anxiety and depressive symptoms, impact baseline symptom self-reporting on the Post-Concussion Symptoms Scale (PCSS) in college athletes.

Methods: Athletes were separated into four groups (Healthy Control (HC) ( = 581), Depression Only ( = 136), Anxiety Only ( = 54), Concomitant Depression/Anxiety ( = 62)) based on their anxiety and depression scores. Groups were compared on Total PCSS Score as well as 5 PCSS Symptom Cluster scores (Cognitive, Physical, Affective, Sleep, and Headache).

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Objectives: The oral Symbol Digit Modalities Test (SDMT) has become the standard for the brief screening of cognitive impairment in persons with multiple sclerosis (PwMS). It has been shown to be sensitive to sensory-motor factors involving rudimentary oral motor speed and visual acuity, as well as multiple sclerosis (MS) affective-fatigue factors including depression, fatigue, and anxiety. The present study was designed to provide a greater understanding of these noncognitive factors that might contribute to the oral SDMT by examining all these variables in the same sample.

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Objectives: The current study aims to examine the prevalence rates and the relationship of symptoms of depression, anxiety, and comorbid depression/anxiety with neurocognitive performance in college athletes at baseline. We hypothesized a priori that the mood disturbance groups would perform worse than healthy controls, with the comorbid group performing worst overall.

Methods: Eight hundred and thirty-one (M = 620, F = 211) collegiate athletes completed a comprehensive neuropsychological test battery at baseline which included self-report measures of anxiety and depression.

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We previously reported a 2% Clavien IIIb urologic-induced complication rate associated with blind (no guidewire, no fluoroscopy) prophylactic ureteral localization stent (PULSe) placement. As part of a quality improvement initiative, mandatory guidewire placement before PULSe was performed and urologic-induced Clavien IIIb or greater complication rates were evaluated. A systematic review was performed to elicit the overall urologic-induced complication rate in the literature.

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Objectives: We hypothesize that men with diabetes mellitus whose inflatable penile prosthesis (IPP) implantation is delayed for unacceptably high hemoglobin A1c (HbA1c) will have durable improvements in their glycemic control after achieving acceptable HbA1c levels for surgery.

Methods: Per institutional protocol, an A1c <9% must be documented prior to IPP placement. After IRB approval, a single surgeon IPP database was retrospectively queried for data specific to diabetes mellitus management.

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Objective: Sleep deprivation is common among both college students and athletes and has been correlated with negative health outcomes, including worse cognition. As such, the current study sought to examine the relationship between sleep difficulties and self-reported symptoms and objective neuropsychological performance at baseline and post-concussion in collegiate athletes.

Method: Seven hundred seventy-two collegiate athletes completed a comprehensive neuropsychological test battery at baseline and/or post-concussion.

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Introduction: We assessed the face, content and construct validity of a newly created vasectomy simulation module.

Methods: Pre-simulation and post-simulation surveys quantifying simulation effectiveness, impact on confidence level and critiques of the overall design were obtained in July 2015 to assess face and content validity. Residents were subdivided based on year of residency and construct validity was ascertained via a 20-objective checklist and individual Likert score as graded by a single attending physician in a blinded fashion.

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Objectives: Transcranial photobiomodulation (t-PBM) consists of the delivery of near-infrared (NIR) or red light to the scalp designed to penetrate to subjacent cortical areas of the brain. NIR t-PBM has recently emerged as a potential therapy for brain disorders. This study assessed the efficacy of repeated sessions of NIR t-PBM on sexual dysfunction.

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: We performed a systematic review with meta-analysis and meta-regression to determine if mind⁻body movements (MBM) could be effective in rehabilitating balance function among stroke survivors. : A literature search was conducted using major Chinese and English electronic databases from an inception until January 2018. Randomized controlled studies were included in our meta-analysis.

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: The effects of stroke are both physical and mental in nature and may have serious implications on the overall well-being of stroke survivors. This analytical review aims to critically evaluate and statistically synthesize the existing literature regarding the effects of mind-body (MB) exercises on mood and functional capabilities in patients with stroke. : A structured literature review was performed in both English (PubMed, PEDro, and Cochrane Library) and Chinese (Wanfang and CNKI (Chinese National Knowledge Information Database)) databases.

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