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Tippett DC, Hillis AE. Ethical and Practical Challenges of the Communication and Behavioral Manifestations of Primary Progressive Aphasia. Semin Speech Lang 2020; 41:249-256. [PMID: 32585709 PMCID: PMC9936353 DOI: 10.1055/s-0040-1710062] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
The communication and behavioral manifestations of primary progressive aphasia (PPA) present ethical and practical challenges for individuals with this clinical syndrome as well as for individuals who are involved closely in their care. In this article, cases representing all three PPA variants (logopenic variant, nonfluent agrammatic, semantic variant) are presented to illustrate commonly encountered situations in which self-determination is at risk in decisions about housing, driving, social interactions, finances, and treatment interventions. Potential approaches, including patient/family education, implementation of safeguards, redirection to meaningful activities, and protections against vulnerability in treatment decisions, are described to preserve autonomy in patients with this neurodegenerative clinical syndrome.
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Affiliation(s)
- Donna C. Tippett
- Department of Neurology, Johns Hopkins University School of Medicine, Baltimore MD, USA, 21287,Department of Physical Medicine & Rehabilitation, Johns Hopkins University School of Medicine, Baltimore MD, USA, 21287,Department of Otolaryngology--Head & Neck Surgery, Johns Hopkins University School of Medicine, Baltimore MD, USA, 21287,Address correspondence to: Donna C. Tippett, MPH, MA, CCC-SLP, Department of Otolaryngology—Head and Neck Surgery, Johns Hopkins University, 601 N. Caroline Street, 6th floor, Baltimore, Maryland 21287-0910, USA, , Phone: + 1 410-955-9256, Fax: +1 410-955-9792
| | - Argye E. Hillis
- Department of Neurology, Johns Hopkins University School of Medicine, Baltimore MD, USA, 21287,Department of Physical Medicine & Rehabilitation, Johns Hopkins University School of Medicine, Baltimore MD, USA, 21287,Department of Cognitive Science, Krieger School of Arts and Sciences, Johns Hopkins University, Baltimore, Maryland
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Abstract
Primary progressive aphasia (PPA) is classified into three variants, logopenic variant PPA (lvPPA), nonfluent agrammatic PPA (nfaPPA), and semantic variant PPA (svPPA), based on clinical (syndromic) characteristics with support from neuroimaging and/or underlying neuropathology. Classification of PPA variants provides information valuable to disease management. International consensus criteria are widely employed to identify PPA subtypes; however, classification is complex, and some individuals do not fit neatly into the subtyping scheme. In this review, diagnostic challenges and their implications are discussed, possible explanations for these challenges are explored, and approaches to address PPA classification are considered.
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Affiliation(s)
- Donna C. Tippett
- Departments of Neurology, Otolaryngology - Head and Neck Surgery, and Department of Physical Medicine and Rehabilitation, Johns Hopkins University School of Medicine, Baltimore, Maryland, 21287, USA
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Tippett DC, Breining B, Goldberg E, Meier E, Sheppard SM, Sherry E, Stockbridge M, Suarez A, Wright AE, Hillis AE. Visuomotor Figure Construction and Visual Figure Delayed Recall and Recognition in Primary Progressive Aphasia. Aphasiology 2019; 34:1456-1470. [PMID: 33281269 PMCID: PMC7716596 DOI: 10.1080/02687038.2019.1670330] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2019] [Accepted: 09/09/2019] [Indexed: 06/11/2023]
Abstract
BACKGROUND Individuals with primary progressive aphasia (PPA) develop visuospatial deficits over time, and those with logopenic variant (lvPPA) are at greatest risk of developing such deficits. However, not all previous studies of visuospatial deficits in PPA have ensured equivalent duration of disease across variants and few have measured deficits longitudinally. AIMS The aims of our study were to: 1) investigate differences in baseline visuomotor figure construction, visual figure delayed recall, and figure recognition in PPA variants with similar symptom duration at baseline, and 2) explore patterns of decline in these areas. METHODS & PROCEDURES Ninety-three individuals with PPA [39 lvPPA, 24 nonfluent agrammatic PPA (nfaPPA), and 30 semantic variant PPA (svPPA)] were administered the Benson Complex Figure Copy, Benson Complex Figure Delay (Recall), and Benson Figure Recognition. Thirty individuals completed this testing 3 to 47 months post baseline. OUTCOME & RESULTS Participants with lvPPA and svPPA showed lower mean scores than those with nfaPPA on visual figure delayed recall at baseline, even though there were no differences in estimated time from disease onset or correlation with disease severity as reflected by naming performance, F(2, 90) = 5.78, p < .004. Those with nfaPPA performed significantly better than those with lvPPA, Tukey HSD p < .05, and those with svPPA, Tukey HSD p < .01. There were no differences between variants in rate of decline in visuomotor figure construction, visual figure delayed recall, and figure recognition. CONCLUSIONS These findings revealed relatively spared visuospatial memory in nfaPPA, which may aid in the differential diagnosis of PPA and contribute to designing therapy or compensatory strategies.
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Affiliation(s)
- Donna C. Tippett
- Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD 21287
- Department of Otolaryngology—Head and Neck Surgery, Johns Hopkins University School of Medicine, Baltimore, MD 21287
- Department of Physical Medicine and Rehabilitation, Johns Hopkins University School of Medicine, Baltimore, MD 21287
| | - Bonnie Breining
- Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD 21287
| | - Emily Goldberg
- Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD 21287
| | - Erin Meier
- Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD 21287
| | - Shannon M. Sheppard
- Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD 21287
| | - Emily Sherry
- Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD 21287
| | - Melissa Stockbridge
- Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD 21287
| | - Adrian Suarez
- Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD 21287
| | - Amy E. Wright
- Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD 21287
| | - Argye E. Hillis
- Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD 21287
- Department of Physical Medicine and Rehabilitation, Johns Hopkins University School of Medicine, Baltimore, MD 21287
- Department of Cognitive Science, Krieger School of Arts and Sciences, Johns Hopkins University, Baltimore, MD 21218
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Keator LM, Wright AE, Saxena S, Kim K, Demsky C, Sebastian R, Sheppard SM, Breining B, Hillis AE, Tippett DC. Distinguishing logopenic from semantic & nonfluent variant primary progressive aphasia: Patterns of linguistic and behavioral correlations. Neurocase 2019; 25:98-105. [PMID: 31164050 PMCID: PMC9677583 DOI: 10.1080/13554794.2019.1625929] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
While language characteristics of logopenic variant primary progressive aphasia (lvPPA) are well-defined, behavioral characteristics are less understood. We investigated correlations between language and behavioral scores across three variants of primary progressive aphasia (PPA) and found language performance and behavioral disturbances are correlated in lvPPA, but not other PPA subtypes. Results suggest that unlike other PPA variants, patients diagnosed with lvPPA do not develop negative behaviors until language deficits are severe. This is consistent with the underlying neuropathology of lvPPA, Alzheimer's Disease. Such findings are crucial to clinical prognosis, especially when considering the progressive nature of this disease.
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Affiliation(s)
- Lynsey M Keator
- a Department of Neurology , Johns Hopkins University School of Medicine , Baltimore , MD , USA
| | - Amy E Wright
- a Department of Neurology , Johns Hopkins University School of Medicine , Baltimore , MD , USA
| | - Sadhvi Saxena
- a Department of Neurology , Johns Hopkins University School of Medicine , Baltimore , MD , USA
| | - Kevin Kim
- a Department of Neurology , Johns Hopkins University School of Medicine , Baltimore , MD , USA
| | - Cornelia Demsky
- a Department of Neurology , Johns Hopkins University School of Medicine , Baltimore , MD , USA
| | - Rajani Sebastian
- a Department of Neurology , Johns Hopkins University School of Medicine , Baltimore , MD , USA
| | - Shannon M Sheppard
- a Department of Neurology , Johns Hopkins University School of Medicine , Baltimore , MD , USA
| | - Bonnie Breining
- a Department of Neurology , Johns Hopkins University School of Medicine , Baltimore , MD , USA
| | - Argye E Hillis
- a Department of Neurology , Johns Hopkins University School of Medicine , Baltimore , MD , USA.,b Department of Cognitive Science , Krieger School of Arts and Sciences, Johns Hopkins University , Baltimore , MD , USA.,c Department of Physical Medicine and Rehabilitation , Johns Hopkins University School of Medicine , Baltimore , MD , USA
| | - Donna C Tippett
- a Department of Neurology , Johns Hopkins University School of Medicine , Baltimore , MD , USA.,c Department of Physical Medicine and Rehabilitation , Johns Hopkins University School of Medicine , Baltimore , MD , USA.,d Department of Otolaryngology-Head and Neck Surgery , Johns Hopkins University School of Medicine , Baltimore , MD , USA
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Sebastian R, Thompson CB, Wang NY, Wright A, Meyer A, Friedman RB, Hillis AE, Tippett DC. Patterns of Decline in Naming and Semantic Knowledge in Primary Progressive Aphasia. Aphasiology 2018; 32:1010-1030. [PMID: 30613121 PMCID: PMC6317736 DOI: 10.1080/02687038.2018.1490388] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
BACKGROUND Individuals with primary progressive aphasia (PPA) and their caregivers want to know what to expect so that they can plan support appropriately. The ability to predict decline in naming and semantic knowledge, and advise individuals with PPA and their caregivers regarding future planning, would be invaluable clinically. AIMS The aims of this study were to investigate patterns of decline in naming and semantic knowledge in each of the clinical variants of PPA (logopenic variant PPA, lvPPA; nonfluent agrammatic PPA, nfaPPA; and semantic variant PPA, svPPA) and to examine the effects of other variables on rate of decline. We hypothesized that speech-language rehabilitation, higher education, and higher baseline test scores would be associated with slower decline, and older age with faster decline. METHODS AND PROCEDURES A total of ninety-four participants with PPA underwent language testing, including thirty six participants with lvPPA, thirty-one participants with nfaPPA, and twenty-seven participants with svPPA. All participant groups were similar in age and education. We focused on decline on three tests: the short form of the Boston Naming Test (BNT), the Hopkins Assessment of Naming Actions (HANA), and the short form of the Pyramids and Palm Trees Test (PPTT). OUTCOME AND RESULTS Across language tests, the most precipitous rates of decline (loss of points per month) occurred in nfaPPA, followed by svPPA, then lvPPA. Female sex, longer symptom duration, higher baseline test score, and speech-language rehabilitation were associated with slower decline. CONCLUSIONS PPA variants were distinguishable by rapidity of decline, with nfaPPA having the most precipitous decline. As hypothesized, higher baseline test scores and speech-language rehabilitation were associated with slower decline. Surprisingly, age and education were not important prognostically for individuals in this study. Further study of prognostically-relevant variables in PPA is indicated in this population.
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Affiliation(s)
- Rajani Sebastian
- Department of Neurology, Johns Hopkins University School of Medicine, Phipps 446, 600 N. Wolfe Street, Baltimore, Maryland 21287 USA; Telephone (410) 614-2381; , , ,
| | - Carol B Thompson
- Johns Hopkins Biostatistics Center, Johns Hopkins Bloomberg School of Public Health, 615 N. Wolfe Street, E-3142, Baltimore, Maryland 21205-2179 USA; Telephone (410) 502-9142;
| | - Nae-Yuh Wang
- Johns Hopkins Biostatistics Center, Johns Hopkins Bloomberg School of Public Health, 615 N. Wolfe Street, E-3142, Baltimore, Maryland 21205-2179 USA; Telephone (410) 502-9142;
- Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA 21287
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland 21205-2179 USA
- Welch Center for Prevention, Epidemiology & Clinical Research, Johns Hopkins Bloomberg School of Public Health, 2024 E. Monument Street, Suite 2-500, Baltimore, Maryland 21205-2179 USA; Telephone (410) 614-3994;
| | - Amy Wright
- Department of Neurology, Johns Hopkins University School of Medicine, Phipps 446, 600 N. Wolfe Street, Baltimore, Maryland 21287 USA; Telephone (410) 614-2381; , , ,
| | - Aaron Meyer
- Cognitive Neuropsychology Lab, Center for Aphasia Research and Rehabilitation, Georgetown University Medical Center, Building D, Suite 207, 4000 Reservoir Road, Washington, DC 20057 USA; Telephone (202) 687-4196; ,
| | - Rhonda B Friedman
- Cognitive Neuropsychology Lab, Center for Aphasia Research and Rehabilitation, Georgetown University Medical Center, Building D, Suite 207, 4000 Reservoir Road, Washington, DC 20057 USA; Telephone (202) 687-4196; ,
| | - Argye E Hillis
- Department of Neurology, Johns Hopkins University School of Medicine, Phipps 446, 600 N. Wolfe Street, Baltimore, Maryland 21287 USA; Telephone (410) 614-2381; , , ,
- Department of Physical Medicine and Rehabilitation, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
- Department of Cognitive Science, Johns Hopkins University, Baltimore, Maryland, USA
| | - Donna C Tippett
- Department of Neurology, Johns Hopkins University School of Medicine, Phipps 446, 600 N. Wolfe Street, Baltimore, Maryland 21287 USA; Telephone (410) 614-2381; , , ,
- Department of Physical Medicine and Rehabilitation, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
- Department of Otolaryngology-Head and Neck Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
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