Lyme Disease (Peripheral Neuroborreliosis) Airin Lara What is Lyme Disease? ● ● It’s a multisystem disorder caused by a bite of Borrelia Burgdorferi (tick)5 Pathophysiology5: ○ ○ ● Etiology5: ○ ● Bite of the tick causes rapid increase of bacteria known as spirochetes in dermis Body realizes there’s something wrong and send out and alert in for of erytrema chronicum migrans (rash), can progress in 3 stages Bite of a Ixodes Dammini tick (deer tick) Average range of people infected range from 6-89 years old, with median being 38 years2,5 ○ ○ Anyone who gets bitten can get it Infection rate has doubled in US from 11,700 in 1995 to 27,200 in 2013 Lyme Disease Functional Effects3 ● ● ● ● Vary through 3 Stages Stage 1: ○ Skin erythema migrans (rash) Stage 2: ○ Multiple erythema migrans (multiple rashes) ○ Borrelial lymphocytoma (big puffy nodule) ○ Lyme neuroborreliosis (2 stages) ○ Carditis (heart inflammation) Stage 3: ○ Acrodermatitis chronica atrophicans (skin disease) ○ Lyme arthritis (mostly affects knees) ○ Neurological symptoms (attacks most of cranial nerves) ● Prognosis6 ○ Very good prognosis ○ Antibiotic treatment shortens course and prevents complications and rare chronic infections ○ Long term antibiotic treatments are good ○ When treated right recurrences rarely appear. Lyme Neuroborreliosis8 ● 2 Stages ○ ○ ● Early Disseminated Stage: ○ ○ ○ ○ ● Early Disseminated Stage (Stage 2 in Lyme Disease) Late Disseminated Stage (Stage 3 in Lyme Disease) Symptoms last weeks to months 98% of cases Manifestations: meningolopyradiculities, linked to unilateral or bilateral facial paresis (Bannwarth's Syndrome) Frequent: radicular pain Late Disseminated Stage: ○ ○ ○ ○ Less than 2% of cases Neurological symptoms develop slowly over months to years Manifestations: encephalomyelitis with atactic gait disturbance and bladder dysfunction Rarely any pain Boris Borckof ● ● ● ● ● 49 year old male headache Stomach ache Dysarthria Rash on left leg Catherine Borckof ● ● ● ● Went backpacking in Virginia few weeks ago, got bitten by a tick Half of his face is droopy Sometimes I can't understand him and he‘ll forget what he is saying He‘s been very moody with a short fuse Assessment: Perceptual Speech Features4 ● ● ● ● ● Pitch: very low Loudness: Difficult to arouse Voice Quality/Resonance: Hypernasal Articulation: garbled/slurred Prosody: montonone Assessment: Objective Findings4 ● ● Adiadochokinesia: tongue, especially elevating and lowering Oral Mech Exam: ○ ○ Structure: Left side of mouth diminished Function: motor weakness of tongue, unable to protrude and retract tongue Speech Intelligibility 9 ● Measured by: Munich Intelligibility Profile (MVP) ○ ○ ○ Word Identification Format: produce list of 72 words from multiple choice format Scored by several unfamiliar listeners, who would listen and try to identify words 80% intelligibility Damian has Flaccid Dysarthria due to Lyme Disease1 ● Flaccid: associated with weakness and paralysis of muscles that produce speech Intervention4 ● Therapy focused on maximizing function of all symptoms: Orofacial Exercises ○ ○ ○ Used compensatory strategies Advised to take frequent pauses Over-articulate Follow-up Questions 1. Am I going to have long lasting effects after treatment? a. 2. Most patients recover after a few months, most don’t lasting chronic effects Chronic Lyme Disease real?Also known as Post Lyme Disease Syndrome a. We don’t know know yet, it‘s a big controversy. But as of now evidence does not support chronic symptoms References 1. 2. 3. 4. 5. 6. 7. 8. 9. American Speech-Language-Hearing Association. (n.d.). Dysarthria in Adults. American Speech-Language-Hearing Association. https://www.asha.org/practice-portal/clinical-topics/dysarthria-in-adults/ Bransfield, R. C., Aidlen, D. M., Cook, M. J., & Javia, S. (2020). A clinical diagnostic system for late-stage neuropsychiatric lyme borreliosis based upon an analysis of 100 patients. Healthcare (Basel), 8(1), 13. https://doi.org/10.3390/healthcare8010013 Cardenas-de la Garza, Jesus Alberto, De la Cruz-Valadez, E., Ocampo-Candiani, J., & Welsh, O. (2019). Clinical spectrum of lyme disease. European Journal of Clinical Microbiology & Infectious Diseases, 38(2), 201-208. https://doi.org/10.1007/s10096-018-3417-1 Gustaw, K., & Mirecka, U. (2001). Dysarthria as the isolated clinical symptom of borreliosis--a case report. Annals of Agricultural and Environmental Medicine, 8(1), 95-97. Koedel, U., Fingerle, V., & Pfister, H. (2015). Lyme neuroborreliosis-epidemiology, diagnosis and management. Nature Reviews. Neurology, 11(8), 446-456. https://doi.org/10.1038/nrneurol.2015.121 Nau, R., Christen, H., & Eiffert, H. (2009). Lyme disease--current state of knowledge. Deutsches Ärzteblatt International, 106(5), 72-81; quiz 82. https://doi.org/10.3238/arztebl.2009.0072 Ogrinc, K., & Maraspin, V. (2016). Nervous system involvement in lyme borreliosis. The Open Dermatology Journal, 10(1), 44-54. https://doi.org/10.2174/1874372201610010044 Rauer, S., Kastenbauer, S., Hofmann, H., Fingerle, V., Huppertz, H., Hunfeld, K., Krause, A., Ruf, B., Dersch, R., & Consensus group. (2020). Guidelines for diagnosis and treatment in neurology - lyme neuroborreliosis. German Medical Science, 18, Doc03-Doc03. https://doi.org/10.3205/000279 Ziegler, W., & Zierdt, A. (2008). Telediagnostic assessment of intelligibility in dysarthria: A pilot investigation of MVP-online. Journal of Communication Disorders, 41(6), 553-577. https://doi.org/10.1016/j.jcomdis.2008.05.001