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Case Study: Angie. Motor Vehicle Accident TBI: Damage to the frontal lobe, bi-temporal, bi-parietal and occipital craniotomy Left Homonymous Hemianopia Left Inattention Visuo-spatial deficits Visual processing deficits Left Hemiparesis Memory. Barriers.
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Case Study: Angie • Motor Vehicle Accident TBI: • Damage to the frontal lobe, • bi-temporal, • bi-parietal and • occipital craniotomy • Left Homonymous Hemianopia • Left Inattention • Visuo-spatial deficits • Visual processing deficits • Left Hemiparesis • Memory
Barriers • Denial of any deficits – Anosagnosia • Left Lower Quadranopsia – both eyes • Left Neglect (Reading/Scanning) • Memory issues • Standing Balance poor • Walking balance poor
Transfer of scanning skills to table top tasks. Pen and Paper Tasks Systematic scanning pattern Smooth scanning across a line in preparation for reading
Transfer to Independent Walking and Scanning Step by step methodology in the transfer of scanning skills to mobility tasks in a graded fashion in a client’s local community.
Transfer from walking frame to support cane. Ensuring balance, gait and Scanning skills are not Compromised.
SUPERMARKET TRAINING: Transferring scanning skills into Everyday community settings. Preparation for independent living.
Progression into Community – O&M • Visual Scanning strategies continue to Residential – Light Business area – street crossing • Increase multiple-stimuli in all environments • Decrease use of Cues and Prompts • At times, distract patient while on task by talking to them and observe if they stay “on task” • If consistent problems in dynamic environment (i.e.: proper scanning patterns), increase therapy sessions in static environment (i.e.: static visual scanning exercises)
Timeline of Events - Angie • June 20, 2006 MVA accident admitted to hospital in ITALY • July 6, 2006 Transferred to Landstuhl, Germany Military Medical Center • July 7, 2006 Transferred to Bethesda NMC • July 22, 2006 Admitted Palo Alto VA Polytrauma Rehabilitation Center • September 22, 2006 Discharged from PRC; housed in community for continued outpatient rehabilitation services • October 24, 2006 Admitted to Brain Injury Rehabilitation Unit (BIRU), Post-Acute Transitional Rehab. • March 15, 2007 Discharged from the Air Force • May 23, 2007 Discharged from the Brain Injury Rehabilitation Unit per trainee request • June 27,2007 Purchased House in Texas near family and living independently, Attending University but having difficulty in remembering so much information Total VA Rehab. Timeline: • Acute Rehab – 4 months -- Post Acute Rehab – 5 months
Types of Electronic devices for visual search/scanning activities
Mr. P • IED blast in Iraq 10-20-2006 • Moderate TBI, LOC noted • Tunnel vision • underwent emergent right occipital and posterior fossa craniectomy
Mr. S • 63 yr old vet with history of mild TBI sustained in Vietnam • Well-compensating for years • Recently (past 8 months to 1 year) has had increased vertiginous symptoms w/ dizziness • Increased difficulty with visual attention, specifically blurring of vision when concentrating on fixed objects • Difficulty with keeping head upright and visual scanning causes vet to lose balance • Plate in neck fusing vertebrae and increased pain from looking down so often
Mr. S Vision Rehab • 12 sessions total • 1x per week • 1 hr lesson • Static scanning • White cane training to improve head up positioning • Lessons range from static to dynamic • Roller tip and bandu basher cane tips • Rural area training
Meet Doug • 45 year old Army Ranger • TBI exposure • Temporal/Frontal Lobe atrophy • Motor apraxia (neck and left hand) • Visual Field constriction OU • Sees Pictures that persist: -Palinopsia ? • Slow visual processing • Auditory: Tinnitus • PTSD • MRI findings: microvascular disease, temporal, frontal lobe atrophy Title
Major Visual complaint: Patient verbalizes • Not able to see motion (visual processing) • Sees pictures that persist, some frames empty • Tunnel vision • Extreme Photosensitivity • Blurred vision • Vision Testing: • No prior ocular disorders • 20/20 OU Distance • 20/20 OU Near (with +1.50 Readers OU) • Confrontation Visual Fields difficult to assess with motor apraxia • Fixation: 3 seconds before tics • Midline shift testing – wnl • Unable to determine: • EOM, NPC, Sacc, Pursuits, stereo
Audiology referral • Tinnitus Masker • Filters “white noise” in environment
Orientation & Mobility Goals • Dual Cane travel • Hallway travel with crowds • Independent residential travel • Improve response time • Improve auditory awareness • Improve auditory localization • Establish rest break/coping with crowds/excess noise • Visual Scanning/Maintain Eye level • Differentiating auditory stimulus vs. visual images • I.e.: hearing vs. seeing car first
VA On-line Resources • www.tbiguide.com • Nora website: www.nora.com • http://www1.va.gov/netsix-braininjury/ • CBIS (Certified Brain Injury Specialist) • www.Bernell.com • National Wheelchair Olympics in Richmond June 25-30th !! • HTS Home Therapy System • Neurovision Technologies • Dynavision D2 • Wayne Engineering Products
References • Kerkhoff, G. “Neurovisual rehabilitation: recent developments and future directions.” J. Neurol. Neurosurg. Psychiatry 2000;68:691-706. • Verlander, D. et al. “Assessment of clients with visual spatial disorders: a pilot study” Visual Impairment Research, 2000, Vol 2,No 3, pp 129-142. • Zihl, J. “Ocular scanning performance in subjects with homonymous visual field disorders”, Visual Impairment Research, 1999, Vol.1, No.1, pp 23-31. • Parton, A. “Hemispatial neglect” J. Neurol. Neurosurg. Psychiatry 2004;75;13-21. • Goodrich GL, Kirby J, Cockerham G, Ingalla SP, Lew HL. Visual Function in Patients of a Polytrauma Rehabilitation Center: A Descriptive Study. Journal of Rehabilitation Research & Development. in press. • Taber KH, Warden DL, Hurley RA. Blast-Related Traumatic Brain Injury: What Is Known? J Neuropsychiatry Clin Neurosci. 2006;18(2):141-5. • TBI Survival Guide – Dr. Glen Johnson -- www.tbiguide.com • NeuroVision Technologies South Australia -- www.nvtsystems.com • Kerkhoff G, MunBinger, U, haaf E, Eberle-Strauss G, Stogerer E. Rehabilitation of homonymous hemianopsia scotomata in patients with postgeniculate damage of the visual system. Saccadic compensation training. Restor Neurol Neuroschince 1992; 4:245-54. • Zihl J. In: Von Cramon D, Zihl J, eds. Neuropsychologische rehabilitation, Berlin: Springer-Verlag, 1988:105-31. • Meienberg O, Zangemeister WH, Rosenberg M, Hoyt WF, Stark I., Saccadic eye movement strategies in patients with homonymous hemianopsia. Ann Neurol 1981; 9: 537-44 • Gassel MM, Williams D. Visual function in patients with homonymous hemianopsia. Part II Ocularmotor mechanisms. Brain 1963: 86: 1-36. • Ishiai S, Furukawa T, Tsukagoshi H. Eye fixation patterns in homonymous hemianopsia and unilateral spatial neglect. Neuropsychologia 1987; 25:675-79 • Zihl, J. Visual scanning behaviour in patients with homonymous hemianopia. Neuropsychol 1995; 33: 287-303 • Chedru F, Leblanc M, Lhermitte F. Visual searching in normal and brain damaged subjects. Cortex 1973;9: 94-111. • Poppelreuter W. Die Storungen der Niederen und Horeren Schleistungen durch Verletzungen des Okzipitalhirns. 1917. • Zangemeister WH, Meienberg O, Stark L, Hoyt WF. Eye head coordination in homonymous hemianopia. J Neurol 1982; 226: 243-54 • Zihl, J. Eye movement patterns in hemianopic dyslexia. Brain 1995; 118: 891-912. • Dynavision D2, Neurovision Technology Systems, Wayne Saccadic Fixator, Hart Chart, Home Therapy System, (HTS), Parquetry,
Thanks and Have Fun in Williamsburg! Paul.koons@va.gov Questions?