Analiza refleksa treptaja u oboljelih od multiple skleroze [Analysis of the blink reflex in multiple sclerosis patients]

Dežmalj Grbelja, Lidija (2018) Analiza refleksa treptaja u oboljelih od multiple skleroze [Analysis of the blink reflex in multiple sclerosis patients]. PhD thesis, Sveučilište u Zagrebu.

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Abstract

Multiple sclerosis (MS) is a chronic autoimmune disease of the central nervous system characterised by inflammation, demyelinisation and axonal degeneration. Neurophysiological methods are indispensable part of diagnostic algorithm in MS. The aim of this study was to examine the electrophysiological characteristics of the blink reflex (BR), compare them with the brainstem auditory evoked potentials (BAEP) and correlate with MRI findings. The study included 60 subjects with a clinically definitive MS divided into 2 subgroups: 19 subjects with symptoms of brainstem damage (MD subgroup) and 41 subjects without signs of brainstem damage (nonMD subgroup). As a control group 60 age and gender matched healthy subjects were included. Analysis of BR and BAEP was done on all participants. Data of MRI findings, regarding presence of demyelinating lesion in brainstem were analyzed in MD and nonMD subgroup. We analized latencies of R1, R2 and R2' of BR and IPL III-V of BAEP. The results showed statistically significant difference in the values of all components of BR measured in the MD and nonMD group compared to the control group as well as MD compared to nonMD group. The values of IPL III-V did not differ in either MD or nonMD group compared to the control group. Statistically significant difference was found in correlation of R1 component and MRI finding in both MS groups. Difference in IPL III-V latencies noted between MD and nonMD group was not statistically significant. BR analysis has been shown to be a more sensitive neurophysiological method in patients with MS than BAEP, regardless of the presence of brainstem damage.

Abstract in Croatian

Multipla skleroza (MS) je kronična autoimuna bolest središnjeg živčanog sustava čije je osnovno obilježje upala, demijelinizacija i degeneracija aksona. Neurofiziološke metode u dijagnostici MS su uz magnetsku rezonanciju (MR) neizostavan dio dijagnostičkog algoritma. Cilj ovog istraživanja bio je ispitati elektrofiziološke karakteristike refleksa treptaja (RT), usporediti ih s analizom slušnih evociranih potencijala (BAEP) i korelirati s nalazom MR. U istraživanju je sudjelovalo 60 ispitanika s dijagnozom klinički definitivne MS koji su podijeljeni u 2 podgrupe: u 19 ispitanika bili su prisutni znaci oštećenja moždanog debla (MD podgrupa), a 41 ispitanik je bio bez znakova oštećenja moždanog debla (nonMD podgrupa). Kontrolna skupina je bila sastavljena od 60 zdravih ispitanika, sukladnih po dobi i spolu. Svim ispitanicima je učinjena analiza RT i analiza BAEP-a, a ispitanicima podgrupe MD i nonMD su analizirani podaci o prisustvu demijelinizacijskih lezija u moždanom deblu u nalazu MR. Mjerene su latencije komponenti R1, R2 i R2` RT i IPL III-V latencija u nalazu BAEP-a te su rezultati pokazali statistički značajnu razliku u vrijednostima svih komponenti izmjerenim u MD i nonMD skupini u odnosu na kontrolnu skupinu kao i u usporedbi MD i nonMD skupine. Vrijednosti IPL III-V se nisu razlikovale u MD niti u nonMD skupini u odnosu na kontrolnu skupinu niti je zabilježena razlika njihovom međusobnom usporedbom. Statistički značajna razlika je utvrđena u korelaciji produljene R1 komponente s nalazom MR u obje ispitivane skupine bolesnika. Analiza RT se pokazala kao osjetljivija neurofiziološka metoda u oboljelih od MS u odnosu na BAEP, neovisno o prisustvu znakova oštećenja moždanog debla.

Item Type: Thesis (PhD)
Mentors:
Mentor
Vida, Demarin
Departments: Izvan medicinskog fakulteta
Depositing User: dr.med. Helena Markulin
University: Sveučilište u Zagrebu
Institution: Medicinski fakultet
Number of Pages: 71
Status: Unpublished
Creators:
CreatorsEmail
Dežmalj Grbelja, LidijaUNSPECIFIED
Date: 12 April 2018
Date Deposited: 06 Sep 2018 08:33
Last Modified: 06 Sep 2018 08:33
Subjects: /
Related URLs:
    URI: http://medlib.mef.hr/id/eprint/2995

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