David M Labiner
- Department Head, Neurology
- Department Head, Neurology (Banner)
- Professor, Neurology
- Professor, Pharmacy Practice-Science
- Professor, Neurosurgery
- Medical College of Georgia, Augusta, Georgia, United States
- B.A. Psychology
- Emory University, Atlanta, Georgia, United States
- The University of Arizona Health Sciences Center: Department of Neurology (2008 - 2010)
- The University of Arizona Health Sciences Center: Department of Neurology (1998 - 2008)
- The University of Arizona Health Sciences Center: Colleges of Medicine and Pharmacy (1998 - 2004)
- The University of Arizona Health Sciences Center: Colleges of Medicine and Pharmacy (1998 - 2004)
- Indian Health Service (1996 - Ongoing)
- University of Arizona: College of Pharmacy: Department of Pharmacy Practice (1996 - 1998)
- Tucson Medical Center (1994 - Ongoing)
- Kindred Hospital of Tucson (1994 - Ongoing)
- Yuma Regional medical Center (1992 - Ongoing)
- Department of Veterans Affairs Medical Center: Department of Neurology (1991 - Ongoing)
- University of Arizona: College of Medicine (1991 - 1998)
- University of Arizona College of Medicine, Tucson, Arizona (1991 - 1998)
- Veterans Administration Medical Center (1989 - 1991)
- Duke University Medical Center (1989 - 1991)
Licensure & Certification
- New York State - Physician # 162660 (Inactive) (1985)
- North Carolina - Physician # 32388 (Inactive) (1988)
- American Board of Psychiatry and Neurology #35363, American Board of Psychiatry and Neurology (1992)
- Epilepsy Certification #240, American Board of Psychiatry and Neurology (2013)
- Arizona - Physician # 20248 (1991)
- National Board of Medical Examiners #291923, National Board of Medical Examiners (1985)
- Drug Enforcement Administration (1985)
No activities entered.
Epilepsy ElectiveNEUR 850E (Fall 2020)
Neuro+Rehab Med ClerkshpNEUR 813C (Fall 2020)
Neuro+Rehab Med ClerkshpNEUR 813C (Fall 2019)
Neuro+Rehab Med ClerkshpNEUR 813C (Fall 2018)
Neuro+Rehab Med ClerkshpNEUR 813C (Fall 2017)
Epilepsy ElectiveNEUR 850E (Spring 2017)
Neuro+Rehab Med ClerkshpNEUR 813C (Spring 2017)
Neurology Gen. Inpatient Svc.NEUR 850A (Spring 2017)
Pediatric NeurologyNEUR 850G (Spring 2017)
Neuro+Rehab Med ClerkshpNEUR 813C (Fall 2016)
Neuro+Rehab Med ClerkshpNEUR 813C (Spring 2016)
- Weinand, M. E., Hammer, M., Lau, B., Labiner, D. M., Walter, C. M., Bernas, M. J., Witte, M. H., Kasoff, W., Bina, R., & Sprissler, R. (2018). Leukocyte expression profiles reveal gene sets with prognostic value for seizure-free outcome following stereotactic laser amygdalohippocampotomy. Scientific Reports, 9(1), 1086. doi:10.1038/s41598-018-37763-5
- Weinand, M. E., Hammer, M., Lau, B., Labiner, D. M., Walter, C. M., Bernas, M. J., Witte, M. H., Kasoff, W., Bina, R., & Sprissler, R. (2019). Leukocyte expression profiles reveal gene sets with prognostic value for seizure-free outcome following stereotactic laser amygdalohippocampotomy. Nature Scientific Reports.
- Ip, Q., Malone, D. C., Chong, J. W., Harris, R. B., & Labiner, D. M. (2018). An update on the prevalence and incidence of epilepsy among older adults. Epilepsy Research, 139, 107-112.
- Weinand, M. E., Weinand, M. E., Hammer, M., Hammer, M., Labiner, D. M., Labiner, D. M., Walter, C. M., Walter, C. M., Bernas, M. J., Bernas, M. J., Witte, M. H., Witte, M. H., Sprissler, R. S., Sprissler, R. S., Kasoff, W., Kasoff, W., Bina, R. W., & Bina, R. W. (2018). Leukocyte RNA expression: Prognostic value for seizure-free outcome following stereotactic laser amygdalohippocampotomy. Neurosurgery, 65(1), 94.
- Manacheril, R., Faheem, U., Labiner, D. M., Drake, K. W., Chong, J. W., Manacheril, R., Faheem, U., Labiner, D. M., Drake, K. W., & Chong, J. W. (2016). Psychosocial Impact of Epilepsy in Older Adults. Healthcare.
- Sleeth, C., Drake, K., Labiner, D. M., & Chong, J. (2016). Felt and enacted stigma in elderly persons with epilepsy: A qualitative approach. Epilepsy & behavior : E&B, 55, 108-112.More infoStigma is a common psychological consequence of chronic diseases, including epilepsy; however, little research has been done to determine the effect of stigma on persons with epilepsy, especially the elderly. We interviewed 57 older adults with epilepsy to discover the extent and consequences of, and reasons for, epilepsy-related stigma in their lives. Felt stigma was more frequently reported than enacted stigma, with over 70% having experienced this form of stigma. Participants described ignorance and fear of the disease as the foundation of epilepsy-related stigma. The most common response to stigmatizing events was a decrease in epilepsy disclosure to family or friends. Results from this study could inform interventions designed for elderly persons with epilepsy and their support networks, as well as educational campaigns for the general public.
- Kaiboriboon, K., Malkhachroum, A. M., Zrik, A., Daif, A., Schiltz, N. M., Labiner, D. M., & Lhatoo, S. D. (2015). Epilepsy surgery in the United States: Analysis of data from the National Association of Epilepsy Centers. Epilepsy research, 116, 105-9.More infoTo examine trends in epilepsy-related surgical procedures performed at major epilepsy centers in the US between 2003 and 2012, and in the service provision infrastructure of epilepsy centers over the same time period.
- Labiner, D. M. (2015). William A. Sibley, MD (1925–2015). Neurology, 85(12), 1016.
- Labiner, D. M., Chong, J. W., Tang, D. H., Malone, D. C., Warholak, T. L., Armstrong, E. P., Slack, M. K., & Hsu, C. H. (2015). Healthcare Resource Burden of Newly Diagnosed Epilepsy in the US Low-Income Elderly Population. European Geriatric Medicine, 6, 251-256.
- Lhatoo, S. D., Kaiboriboon, K., & Labiner, D. (2015). Response to "The persistent under-utilization of epilepsy surgery". Epilepsy research, 118, 70-1.
- Manacheril, R., Faheem, U., Labiner, D. M., Drake, K. W., & Chong, J. W. (2015). Psychosocial Impact of Epilepsy in Older Adults.. Healthcare.
- Nokes, B., Sim, Y., Gibson, B., Byreddy, S., Labiner, D. M., Coull, B., & Chong, J. (2015). Assessment of stroke risk in southern Arizona, the pairing of acculturation and stroke risk factor development. Journal of immigrant and minority health / Center for Minority Public Health, 17(2), 513-8.More infoStroke is a leading cause of mortality in the United States. Hispanics have the same incidence of stroke, but are more likely to have subsequent strokes than non-Hispanic whites. This difference in outcome may be attributable to differences in stroke risk factor awareness. Patients at a community health center in Tucson, AZ completed an anonymous survey regarding existing and perceived health issues. Patient responses were compared in terms of ethnicity and acculturation, as indicated by language preference. Patient responses (n = 301, Spanish: 150, English: 151) indicated that proportionately fewer non-acculturated Hispanics than acculturated Hispanic and non-Hispanic patients indicated that they were at risk for stroke. Acculturated Hispanics and non-Hispanics displayed similar morbidity trends, including increased obesity, hypertension, diabetes, heart problems, depression, and previous stroke. These findings suggest that Hispanics become less healthy and more at risk for stroke and stroke risk factors as they become acculturated.
- Tang, D. H., Malone, D. C., Warholak, T. L., Chong, J. W., Armstrong, E. P., Slack, M. K., Hsu, C. H., Labiner, D. M., Tang, D. H., Malone, D. C., Warholak, T. L., Chong, J. W., Armstrong, E. P., Slack, M. K., Hsu, C. H., & Labiner, D. M. (2015). Healthcare Resource Burden of Newly Diagnosed Epilepsy in the US Low-Income Elderly Population. European Geriatric Medicine.
- Tang, D. H., Malone, D. C., Warholak, T. L., Chong, J., Armstrong, E. P., Slack, M. K., Hsu, C. H., & Labiner, D. M. (2015). Prevalence and Incidence of Epilepsy in an Elderly and Low-Income Population in the United States. Journal of clinical neurology (Seoul, Korea), 11(3), 252-61.More infoThe purpose of this study was to estimate the incidence and prevalence of epilepsy among an elderly and poor population in the United States.
- Weinand, M. E., Hammer, M., Labiner, D. M., Walter, C. M., Bernas, M. J., Witte, M. H., Sprissler, R. S., Kasoff, W., & Bina, R. W. (2018). Leukocyte RNA expression: Prognostic value for seizure-free outcome following stereotactic laser amygdalohippocampotomy. Neurosurgery, 65(1), 94.
- Sim, Y., Nokes, B., Byreddy, S., Chong, J., Coull, B. M., & Labiner, D. M. (2014). Healthcare utilization of patients with epilepsy in Yuma County, Arizona: do disparities exist?. Epilepsy & behavior : E&B, 31, 307-11.More infoThe aim of this study was to describe the disparities in healthcare utilization and costs between Hispanic and non-Hispanic patients with seizures or epilepsy. We reviewed the insurance status and healthcare resource utilization data from 2005 to 2008 for all patients with seizures and epilepsy seen at the Yuma Regional Medical Center (YRMC). Charges for medical services provided to Hispanic patients with epilepsy between the ages of 18 and 49 were significantly less than those for non-Hispanic patients with epilepsy (Hispanic: $3167.63 versus non-Hispanic: $5154.36, P
- Chong, J., Hesdorffer, D. C., Thurman, D. J., Lopez, D., Harris, R. B., Hauser, W. A., Labiner, E. T., Velarde, A., & Labiner, D. M. (2013). The prevalence of epilepsy along the Arizona-Mexico border. Epilepsy research, 105(1-2), 206-15.More infoThis study describes the epidemiology of epilepsy on the Arizona-Mexico border.
- Labiner, D. M., & Drake, K. W. (2013). Formularies, costs, and quality of care: Formulary restrictions are not the answer, especially for epilepsy. Neurology. Clinical practice, 3(1), 71-74.More infoThe goal of treating an individual with epilepsy is to have no seizures and no side effects. Limiting availability of medications appears to be a simple way of controlling costs of patient care. This approach potentially jeopardizes both efficacy and safety. We argue, in this edition of Current Controversies, that limiting costs by restricting formularies is detrimental to the patients from an efficacy, safety, and cost perspective.
- Bateman, L. M., Begley, C. E., Ben-Menachem, E., Berg, A. T., Berkovic, S. F., Cascino, G. D., Drazkowski, J., Edwards, J. C., Engel, J., French, J. A., Gilliam, F. D., Hoerth, M. T., Jehi, L. E., Kanner, A. M., Krauss, G. L., Labiner, D. M., Loddenkemper, T., Luders, H. O., McKhann, G. M., , McLachlan, R., et al. (2012). Overcoming barriers to successful epilepsy management. Epilepsy currents / American Epilepsy Society, 12(4), 158-60.
- Chong, J., Drake, K., Atkinson, P. B., Ouellette, E., & Labiner, D. M. (2012). Social and family characteristics of Hispanics with epilepsy. Seizure, 21(1), 12-6.More infoThe purpose of this study is to determine how acculturation, social support, family emotional involvement, perceived family criticism and stigma are associated with epilepsy self-efficacy and depression. A principal components analysis (PCA) was used to describe the salience of these characteristics within a sample of Hispanics with epilepsy. A total of 50 Hispanic adults of Mexican descent identified in our Epilepsy Clinic participated in this study. The PCA identified four distinct types, two were relatively culture-free, and two were distinctly culturally oriented. The first non-culture affiliated type described a well-adjusted group of individuals that tended to be males with moderate self-efficacy, who received social support, and who were unlikely to have depression or feel stigmatized. The second non-culture affiliated type described a dimension in which family emotional involvement tended to co-occur with perceived criticism. The Anglo-oriented group had a family environment that did not appear to criticize the individual with epilepsy and had good self-efficacy. The Mexican-oriented group had high self-efficacy and was unlikely to have depression. Results suggest that acculturation variables must be taken into consideration among ethnic groups because social, psychological and acculturation variables interact in complex ways. Additionally, it is clear that a diagnosis of epilepsy does not automatically lead to poor quality of life, stigma, or depression.
- Helmers, S. L., Begnaud, J., Cowley, A., Corwin, H. M., Edwards, J. C., Holder, D. L., Kostov, H., Larsson, P. G., Levisohn, P. M., De Menezes, M. S., Stefan, H., & Labiner, D. M. (2012). Application of a computational model of vagus nerve stimulation. Acta neurologica Scandinavica, 126(5), 336-43.More infoThe most widely used and studied neurostimulation procedure for medically refractory epilepsy is vagus nerve stimulation (VNS) Therapy. The goal of this study was to develop a computational model for improved understanding of the anatomy and neurophysiology of the vagus nerve as it pertains to the principles of electrical stimulation, aiming to provide clinicians with a systematic and rational understanding of VNS Therapy.
- Kleinman, N. L., Sadosky, A., Seid, J., Martin, R. C., & Labiner, D. M. (2012). Costs, work absence, and adherence in patients with partial onset seizures prescribed gabapentin or pregabalin. Epilepsy research, 102(1-2), 13-22.More infoFew studies have examined cost of illness of epileptic partial onset seizures (POS) from the employer perspective or compared users of gabapentin and pregabalin in treatment of POS. This study compares pharmacotherapy, direct/indirect costs, and work absences of patients with POS newly started on gabapentin or pregabalin.
- Labiner, D. M., & Cascino, G. D. (2012). Are neurologists really data driven in selecting epilepsy treatment?. Neurology, 78(16), 1194-5.
- Ouellette, E., Chong, J., Drake, K., & Labiner, D. M. (2011). Emergency department care of seizure patients: demographic trends in southern Arizona. Epilepsy & behavior : E&B, 21(4), 382-6.More infoThe aim of this study was to describe the epidemiology of epilepsy and characteristics of patients with seizures who presented at the Yuma Regional Medical Center Emergency Department (YRMC ED) from 2005 to 2008. A seizure diagnosis was present in 2.7% of the patients, and accounted for 1.7% of all ED visits. Visits by patients identified as having epilepsy accounted for 0.3% of all ED visits. Patients with seizures were 2.8 times more likely to have used the ED for 2 or more years of the study period compared with control patients. Patients with at least one ED visit because of seizures were more likely to have multiyear visits, 43.6% visiting the ED within 2 or more years. Patients with epilepsy and seizures were significantly younger than the no-seizure control group. Patients who had ever been admitted to the ED for seizures or epilepsy had higher ED utilization even if the subsequent admissions were not seizure related.
- Stern, J. M., Labiner, D. M., Gilliam, F. G., Penovich, P. E., Onofrey, M., Eagan, C. A., & Holmes, G. L. (2011). More effective assessment of adverse effects and comorbidities in epilepsy: results of a Phase II communication study. Epilepsy & behavior : E&B, 22(3), 552-6.More infoResearch was conducted to evaluate conversations about epilepsy between community-based neurologists and patients. Adverse effects of antiepileptic drugs and mood/behavioral issues were infrequently discussed, and neurologists and patients disagreed about these issues postvisit. Follow-up research was conducted to assess the impact of a previsit assessment tool on discussions of epilepsy. Twenty neurologists reviewed a tool incorporating questions from validated instruments (Adverse Events Profile [AEP] and Neurological Disorders Depression Inventory for Epilepsy [NDDI-E]). Naturally occurring interactions between neurologists and 60 patients were recorded. Neurologists and patients were interviewed separately. All components were transcribed and analyzed using sociolinguistics. Using the previsit assessment tool increased the number of discussions about adverse effects and mood/behavioral issues and increased neurologist-patient agreement about issues postvisit. Visit length did not increase significantly when the tool was used. Ten months after follow-up research, 50% of neurologists reported continuing to use the tool in everyday practice with patients with epilepsy.
- Thurman, D. J., Beghi, E., Begley, C. E., Berg, A. T., Buchhalter, J. R., Ding, D., Hesdorffer, D. C., Hauser, W. A., Kazis, L., Kobau, R., Kroner, B., Labiner, D., Liow, K., Logroscino, G., Medina, M. T., Newton, C. R., Parko, K., Paschal, A., Preux, P., , Sander, J. W., et al. (2011). Standards for epidemiologic studies and surveillance of epilepsy. Epilepsia, 52 Suppl 7, 2-26.More infoWorldwide, about 65 million people are estimated to have epilepsy. Epidemiologic studies are necessary to define the full public health burden of epilepsy; to set public health and health care priorities; to provide information needed for prevention, early detection, and treatment; to identify education and service needs; and to promote effective health care and support programs for people with epilepsy. However, different definitions and epidemiologic methods complicate the tasks of these studies and their interpretations and comparisons. The purpose of this document is to promote consistency in definitions and methods in an effort to enhance future population-based epidemiologic studies, facilitate comparison between populations, and encourage the collection of data useful for the promotion of public health. We discuss: (1) conceptual and operational definitions of epilepsy, (2) data resources and recommended data elements, and (3) methods and analyses appropriate for epidemiologic studies or the surveillance of epilepsy. Variations in these are considered, taking into account differing resource availability and needs among countries and differing purposes among studies.
- Chong, J., Kudrimoti, H. S., Lopez, D. C., & Labiner, D. M. (2010). Behavioral risk factors among Arizonans with epilepsy: Behavioral Risk Factor Surveillance System 2005/2006. Epilepsy & behavior : E&B, 17(4), 511-9.More infoModifiable risk factors to help improve health outcomes for people with epilepsy in Arizona were identified using the 2005-2006 Arizona Behavioral Risk Factor Surveillance System (BRFSS). Of 9524 adults who participated in this survey, 125 reported ever being diagnosed with epilepsy (lifetime prevalence=1.3%, 95% CI=1.1-1.6%). Individuals with active epilepsy (those who had seizures in the prior 3 months and/or were taking anticonvulsants) had an overall lower quality of life. This likely resulted from a large number of medical comorbidities and poor mental and physical health days. Regression models suggested that for individuals with active epilepsy, physical activity was associated with fewer activity-limited days, whereas for individuals with inactive epilepsy, medical comorbidity was positively associated with activity-limited days. Further research is needed to increase the reliability of the findings.
- Drake, K., & Labiner, D. M. (2010). Severe constipation associated with the use of rufinamide (Banzel) in an adolescent. Epilepsy & behavior : E&B, 18(1-2), 132.
- Helmers, S. L., Paradis, P. E., Manjunath, R., Duh, M. S., Lafeuille, M., Latrémouille-Viau, D., Lefebvre, P., & Labiner, D. M. (2010). Economic burden associated with the use of generic antiepileptic drugs in the United States. Epilepsy & behavior : E&B, 18(4), 437-44.More infoThis study quantifies the economic burden associated with generic-versus-branded use of antiepileptic drugs (AEDs) in the United States. Adult patients with epilepsy receiving carbamazepine, gabapentin, phenytoin, primidone, or zonisamide were selected from the PharMetrics database. By use of an open-cohort design, patients were classified into mutually exclusive periods of generic-versus-branded AED use. Annualized cost differences (CDs) between periods were estimated using multivariate regressions. Results were stratified into stable versus unstable epilepsy and newer-generation versus older-generation AEDs. A total of 33,625 patients (52% male, mean age=51 years) were observed. Periods of generic AED treatment were associated with higher medical service costs (adjusted CD [95% CI]=$3186 [$2359; $4012]), stable pharmacy costs ($69 [$-34; $171]), and greater total costs ($3254 [$2403; $4105]) versus brand use. Epilepsy-related costs represented 30% of incremental costs. Similar findings were observed for patients with stable and unstable epilepsy and users of newer-generation and older-generation AEDs. Significantly higher health care costs were observed during generic AED use across seizure control and AED subgroups.
- Labiner, D. M., Bagic, A. I., Herman, S. T., Fountain, N. B., Walczak, T. S., Gumnit, R. J., & , N. A. (2010). Essential services, personnel, and facilities in specialized epilepsy centers--revised 2010 guidelines. Epilepsia, 51(11), 2322-33.More infoThis document was developed by the members of the Committee to Revise the Guidelines for Services, Personnel, and Facilities at Specialized Epilepsy Centers. After discussions with the general membership they were adopted by the Board of the National Association of Epilepsy Centers. The Guidelines will be reviewed and updated when considered necessary by the Board.
- Labiner, D. M., Paradis, P. E., Manjunath, R., Duh, M. S., Lafeuille, M., Latrémouille-Viau, D., Lefebvre, P., & Helmers, S. L. (2010). Generic antiepileptic drugs and associated medical resource utilization in the United States. Neurology, 74(20), 1566-74.More infoTo evaluate whether generic substitution was associated with any difference in medical resource utilization for 5 widely used antiepileptic drugs (AEDs) in the United States.
- Gilliam, F., Penovich, P. E., Eagan, C. A., Stern, J. M., Labiner, D. M., Onofrey, M., Holmes, G. L., Mathis, E., & Cramer, J. (2009). Conversations between community-based neurologists and patients with epilepsy: results of an observational linguistic study. Epilepsy & behavior : E&B, 16(2), 315-20.More infoAn in-office linguistic study was conducted to assess neurologist-patient discussions of epilepsy. Naturally occurring interactions among 20 neurologists and 60 of their patients with epilepsy were recorded. Participants were interviewed separately postvisit. Transcripts were analyzed using sociolinguistic techniques. Of 59 patients taking antiepileptic drugs previsit, 44 (75%) discussed side effects with their neurologist. Side effect discussions were most often neurologist initiated. Postvisit, patients and neurologists often disagreed about which side effects were experienced. The presence of a caregiver (e.g., spouse) usually resulted in lengthier, more detailed discussions of side effects, without drastically increasing overall visit length. Discussions of mood- and behavior-related comorbidities occurred infrequently (14 of 60 visits); postvisit, neurologists stated that they felt that management of these conditions was outside their area of expertise. Communication gaps observed in discussions of epilepsy and its treatment warrant further exploration. Additional research is currently underway to assess the efficacy of a previsit assessment tool.
- Labiner, D. M., Ettinger, A. B., Fakhoury, T. A., Chung, S. S., Shneker, B., Tatum Iv, W. O., Mitchell Miller, J., Vuong, A., Hammer, A. E., & Messenheimer, J. A. (2009). Effects of lamotrigine compared with levetiracetam on anger, hostility, and total mood in patients with partial epilepsy. Epilepsia, 50(3), 434-42.More infoTo assess anger/hostility during treatment with lamotrigine adjunctive therapy versus levetiracetam adjunctive therapy in patients with partial seizures.
- Thayer, J. F., Sollers, J. J., Labiner, D. M., Weinand, M., Herring, A. M., Lane, R. D., & Ahern, G. L. (2009). Age-related differences in prefrontal control of heart rate in humans: a pharmacological blockade study. International journal of psychophysiology : official journal of the International Organization of Psychophysiology, 72(1), 81-8.More infoThe Neurovisceral Integration Model is based on the premise of significant central nervous system-peripheral nervous system interactions. In support of this model we have previously shown that the prefrontal cortex tonically inhibits cardioacceleratory circuits as evidenced by increased heart rate (HR) when the prefrontal cortex is inactivated by injections of sodium amobarbitol (ISA) into the internal carotid artery. In this report we re-examine these data to investigate possible age-related differences in the prefrontal control of HR in humans. Seventy-three patients were divided into three groups based on a tertile split with mean ages of 20, 34, and 47, respectively. There were significant age-related differences in cortical control of HR as evidenced by a significant three way interaction of age (young, middle, old) by side (left versus right) by time (baseline and epochs 1-10 of inactivation) [Roy's Root (10,59)=0.378, p=0.028]. Results showed significant HR increases that did not differ between hemispheres in the youngest age group, significant increases in the middle age group that were larger in the right hemisphere than in the left, and significant HR increases in the oldest group in the right hemisphere only. The findings suggest important age-related differences in cortical inhibitory control of HR that appear less lateralized in the youngest group and significantly attenuated in the oldest age group. These results have important implications for the understanding of age-related differences in cognitive, affective, behavioral, and physiological functioning. In addition they support the importance of investigating central nervous system-peripheral nervous system relationships.
- Weinand, M., Serxner, B., Labiner, D., & Ahern, G. (2009). Interhemispheric propagation time and temporal lobe epileptogenicity. Pathophysiology : the official journal of the International Society for Pathophysiology / ISP, 16(1), 39-42.More infoLong-term subdural electroencephalographic (EEG) recording was performed in a series of patients with medically intractable complex partial seizures to test the hypothesis that ictal interhemispheric propagation time (IHPT) is correlated with temporal lobe epileptogenicity. In 41 patients, the duration from initial subdural EEG seizure onset to the first appearance of subdural EEG epileptic activity in the contralateral hemisphere (IHPT) was measured in seconds and analyzed for a quantitative relationship to temporal lobe seizure interval (frequency⁻¹), in hours. A statistically significant, nonlinear correlation between IHPT and seizure interval was found (Arctan y=-0.009x²+0.598x+75.187, y=IHPT, in seconds, x=seizure interval, in hours, r=0.326, d.f.=39, t=2.15, p
- Antonucci, S. M., Beeson, P. M., Labiner, D. M., & Rapcsak, S. Z. (2008). Lexical retrieval and semantic knowledge in patients with left inferior temporal lobe lesions. Aphasiology, 22(3), 281-304.More infoBACKGROUND: It has been proposed that anomia following left inferior temporal lobe lesions may have two different underlying mechanisms with distinct neural substrates. Specifically, naming impairment following damage to more posterior regions (BA 37) has been considered to result from a disconnection between preserved semantic knowledge and phonological word forms (pure anomia), whereas anomia following damage to anterior temporal regions (BAs 38, 20/21) has been attributed to the degradation of semantic representations (semantic anomia). However, the integrity of semantic knowledge in patients with pure anomia has not been demonstrated convincingly, nor were lesions in these cases necessarily confined to BA 37. Furthermore, evidence of semantic anomia often comes from individuals with bilateral temporal lobe damage, so it is unclear whether unilateral temporal lobe lesions are sufficient to produce significant semantic impairment. AIMS: The main goals of this study were to determine whether anomia following unilateral left inferior temporal lobe damage reflected a loss of semantic knowledge or a post-semantic deficit in lexical retrieval and to identify the neuroanatomical correlates of the naming impairment. METHODS #ENTITYSTARTX00026; PROCEDURES: Eight individuals who underwent left anterior temporal lobectomy (L ATL) and eight individuals who sustained left posterior cerebral artery strokes (L PCA) completed a battery of language measures that assessed lexical retrieval and semantic processing, and 16 age- and education-matched controls also completed this battery. High-resolution structural brain scans were collected to conduct lesion analyses. OUTCOMES #ENTITYSTARTX00026; RESULTS: Performance of L ATL and L PCA patients was strikingly similar, with both groups demonstrating naming performance ranging from moderately impaired to unimpaired. Anomia in both groups occurred in the context of mild deficits to semantic knowledge, which manifested primarily as greater difficulty in naming living things than nonliving things and greater difficulty in processing visual/perceptual as opposed to functional/associative semantic attributes. Lesion analyses indicated that both patient groups sustained damage to anterior inferior temporal lobe regions implicated in semantic processing. CONCLUSIONS: These results contribute to a better understanding of the cognitive mechanism of naming impairment in patients with temporal lobe damage and support the notion that pure anomia and semantic anomia represent two endpoints along a continuum of semantic impairment. Unilateral left temporal lobe lesions in our patients resulted in relatively mild semantic deficits that were apparent primarily in lexical production tasks, whereas severe semantic impairment likely requires bilateral temporal lobe damage.
- Hayes, S. M., Melin, J. D., Dupuis, M., Murray, S., & Labiner, D. M. (2007). Assessing the true learning needs of health care professionals in epilepsy care. Epilepsy & behavior : E&B, 11(3), 434-41.More infoThis needs assessment, initiated by the American Epilepsy Society (AES) in cooperation with AXDEV Group Inc. (AXDEV), used a mixed-method approach to explore the educational and clinical practice needs of health care professionals in epilepsy care and to identify significant barriers to caring for people with epilepsy. The multiphase assessment began with key informant interviews with AES educational leaders. In Phase II, 26 stakeholders, including epileptologists, neurologists, professionals in epilepsy care, and people with epilepsy, shared their experiences in epilepsy care during four focus groups at the AES annual meeting. In Phase III, a quantitative online survey based on Phase II results was distributed to 228 respondents, including epileptologists (n=84), neurologists (n=55), professionals in epilepsy care (n=69), and others (n=20). Results of the comprehensive analysis of Phase III quantitative data are presented here. They reveal the unmet needs of health care professionals in this therapeutic domain and are discussed in terms of their implications for epilepsy care.
- Labiner, D. M. (2016, January). Pain & Your Brain. University of Arizona: Living Healthy with Arthritis Conference. Tucson, Arizona.
- Labiner, D. M. (2015, December). Partnering epilepsy centers in the Americas: the Costa Rica experience. Global Health Special Interest Group at the Annual Meeting of the American Epilepsy Society. Philadelphia, PA.
- Labiner, D. M., & Skoch, J. (2015, September). Cortical gene expression associated with seizure outcome following temporal lobectomy with amygdalohippocampectomy. Western Neurosurgical Society meeting. Kauai, HI.
- Labiner, D. M. (2015, December). Development of an epilepsy self-management decision-support tool: Spanish-MINDSET 4.1. Annual Meeting of the American Epilepsy Society. Philadelphia, PA.More infoposter 1.376
- Rueda, S., Sepulveda, R., Chong, J. W., Begley, C., Shegog, R., & Labiner, D. M. (2015, December 4-8). Development of an epilepsy self-management decision-support tool: Spanish-MINDSET 4.1. 69th Annual Meeting of the American Epilepsy Society.
- Rueda, S., Sepulveda, R., Chong, J. W., Begley, C., Shegog, R., Labiner, D. M., Rueda, S., Sepulveda, R., Chong, J. W., Begley, C., Shegog, R., & Labiner, D. M. (2015, December 4 – 8, 2015). Poster 1.376 Development of an epilepsy self-management decision-support tool: Spanish-MINDSET 4.1. 69th Annual Meeting of the American Epilepsy Society. Philadelphia, PA.: Rueda S, Sepulveda R, Chong J, Begley C, Shegog R, Labiner D (2015).