Publications by authors named "David A Denney"

3 Publications

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Physical activity status and quality of life in patients with epilepsy - Survey from level four epilepsy monitoring units.

Epilepsy Res 2021 Apr 9;173:106639. Epub 2021 Apr 9.

Department of Neurology, University of Texas Southwestern Medical Center, 5323 Harry Hines Blvd, TX, 75390, USA. Electronic address:

Purpose: People with epilepsy (PWE) tend to have sedentary lifestyles which may predispose them to a lower perceived quality of life (QOL). Moreover, the relationship between physical activity (PA) and QOL in populations of PWE with high disease burden has been under-studied. The goal of this study was to evaluate PA level and its impact on health-related QOL in PWE who were admitted to Level-4 epilepsy monitoring units (EMU).

Methods: In this prospective observational study, 200 patients from two EMUs in Dallas, Texas completed the following standard surveys: Rapid Assessment of Physical Activity (RAPA), the Quality of Life in Epilepsy (QOLIE-31), Patient Health Questionnaire-9 (PHQ-9), and Generalized Anxiety Disorder 7-item (GAD-7) questionnaire. Information on self-reported epilepsy history, severity of disease, and socioeconomic status were also collected. The diagnosis of epilepsy was confirmed by video-EEG monitoring.

Results: Among the 200 who completed the survey, 113 had a diagnosis of epilepsy and 109 of them completed the RAPA. Ninety-two (84 %) of these PWE reported a sedentary level of physical activity (RAPA < 6) and 16 % reported an active level (RAPA ≥ 6). Self-reported QOL was slightly higher in PWE with an active level of PA compared to PWE with a sedentary level of PA (63.8 ± 15.0 vs 53.7 ± 17.9, p = 0.07), even though there was no difference in the severity of self-reported mood symptoms. After controlling for employment and seizure frequency, physical activity level measured by RAPA score was also positively related to QOL (r = 0.39, p = 0.01) and negatively correlated with anxiety symptoms (r = -0.28, p = 0.02) and depression symptoms (r = -0.25, p = 0.04).

Conclusion: The majority of PWE in this survey reported sedentary lifestyles despite most of them being young to middle-aged adults. Higher PA level was associated with fewer self-reported mood symptoms and higher QOL. In conjunction with the literature, these results suggest that PWE with a wide range of disease burden should be encouraged to participate in regular exercise to potentially improve QOL.
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http://dx.doi.org/10.1016/j.eplepsyres.2021.106639DOI Listing
April 2021

Subjective ratings of cognitive and emotional functioning in patients with mild cognitive impairment and patients with subjective memory complaints but normal cognitive functioning.

J Clin Exp Neuropsychol 2019 08 8;41(6):565-575. Epub 2019 Apr 8.

b Department of Clinical Neuropsychology , Barrow Neurological Institute , Phoenix , AZ , USA.

In a retrospective chart review, 39 patients referred for a clinical neuropsychological examination were identified as showing either mild cognitive impairment of the amnestic type (MCI-A;  = 21) or subjective memory complaints but with normal memory function (SMC;  = 18). During the clinical interview, patients and informants were routinely asked to make subjective ratings regarding the patient's cognitive and affective functioning in everyday life. The purpose of this study was to determine whether these two patient groups (and their informants) significantly differed in their subjective reports about level of cognitive and affective difficulties. It was predicted that SMC patients would report higher levels of cognitive and emotional dysfunction than MCI-A patients. It was further predicted that MCI-A patients would underreport cognitive difficulties (compared to informant reports); SMC patients would demonstrate the opposite pattern. Results supported these predictions and suggest that routine assessment of subjective experiences of patients in conjunction with informant ratings may aid clinical diagnosis, particularly when the primary complaint is a decline in memory.
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http://dx.doi.org/10.1080/13803395.2019.1588229DOI Listing
August 2019

Dyadic Short Forms of the Wechsler Adult Intelligence Scale-IV.

Arch Clin Neuropsychol 2015 Aug 8;30(5):404-12. Epub 2015 Jun 8.

Department of Psychiatry, The University of Texas Southwestern Medical Center, Dallas, TX, USA Department of Neurology & Neurotherapeutics, The University of Texas Southwestern Medical Center, Dallas, TX, USA

Full Wechsler Adult Intelligence Scale-Fourth Edition (WAIS-IV) administration can be time-consuming and may not be necessary when intelligence quotient estimates will suffice. Estimated Full Scale Intelligence Quotient (FSIQ) and General Ability Index (GAI) scores were derived from nine dyadic short forms using individual regression equations based on data from a clinical sample (n = 113) that was then cross validated in a separate clinical sample (n = 50). Derived scores accounted for 70%-83% of the variance in FSIQ and 77%-88% of the variance in GAI. Predicted FSIQs were strongly associated with actual FSIQ (rs = .73-.88), as were predicted and actual GAIs (rs = .80-.93). Each of the nine dyadic short forms of the WAIS-IV was a good predictor of FSIQ and GAI in the validation sample. These data support the validity of WAIS-IV short forms when time is limited or lengthier batteries cannot be tolerated by patients.
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http://dx.doi.org/10.1093/arclin/acv035DOI Listing
August 2015