학술논문
Pozorovanie hrúbky vrstvy nervových vlákien sietnice u pacientov so sklerózou multiplex pomocou optickej koherentnej tomografieInvestigation of the retinal nerve fiber layer in multiple sclerosis using spectral domain optical coherence tomography
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Czech
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Abstract
Úvod: Neuritída zrakového nervu alebo optická neuritída (ON) je zápalová afekcia zrakového nervu, často asociovaná so sklerózou multiplex (SM). Redukcia axónov zrakového nervu ako následok ON sa prejavuje znížením hrúbky nervových vlákien sietnice (RNFL), čo možno zmerať pomocou optickej koherentnej tomografie (Optical Coherence Tomography; OCT). Cieľ: Pozorovanie hrúbky RNFL u pacientov po ON v rámci klinicky izolovaného syndrómu (CIS) a u pacientov so SM pomocou spektrálneho OCT (SD-OCT) a porovnanie výsledkov so zdravou kontrolnou skupinou. Súbor a metodika: Vyšetrenie 30 očí 15 pacientov s CIS, 94 očí 47 pacientov s SM (oči s manifestáciou ON v anamnéze i bez nej) a 30 očí zdravých kontrol pomocou SD-OCT. Výsledky: V skupine pacientov s CIS po jednostrannej ON bol preukázaný štatisticky signifikantný rozdiel v priemernej hrúbke RNFL (92,1 ?m; p = 0,007) oproti kontrolnej skupine (100,8 ?m). U nepostihnutých očí rovnakej skupiny pacientov nebol zaznamenaný rozdiel oproti kontrolnej vzorke (97,5 ?m; p = 0,25). Rovnako nebol preukázaný rozdiel pri porovnaní priemernej hrúbky RNFL očí postihnutých a nepostihnutých ON (p = 0,14). V skupine pacientov s manifestnou ON a klinicky definitívnou SM bol zaznamenaný štatisticky významný pokles hrúbky RNFL (73,1 ?m; p < 0,001) oproti kontrolnej skupine (100,8 ?m). Zároveň bol tento pokles preukázaný i u pacientov s SM bez manifestnej neuritídy (91,4 ?m; p = 0,002). Štatisticky významný rozdiel poklesu hrúbky RNFL bol zaznamenaný i porovnaním očí postihnutých a nepostihnutých ON v rámci SM (p = 0,04). Záver: Spektrálne OCT predstavuje vhodnú vyšetrovaciu metódu umožňujúcu sledovanie subklinických zmien hrúbky RNFL u pacientov so sklerózou multiplex.
Background: Optic neuritis (ON) is an inflammatory optic nerve disease that is strongly associated with multiple sclerosis (MS). Axonal damage in the optic nerve is manifested as retinal nerve fiber layer (RNFL) deficits that can be detected by the optical coherence tomography (OCT). Aim:To characterize the inner retinal layer changes in patients with clinically isolated syndrome (CIS) and MS while utilizing the spectral domain OCT (SD-OCT) and a comparative sample of healthy controls. Participants and methods: 30 eyes of 15 patients with CIS, 104 eyes of 52 MS patients with or without history of ON and 30 eyes of healthy patients that underwent SD-OCT examination. Results: CIS ON eyes had lower mean RNFL thickness (92.1 ?m; p = 0.007) compared to the comparative sample (100.8 ?m). The mean RNFL thickness decrease (97.5 ?m; p = 0.25) was not detected in the eyes unaffected by CIS ON. Reduction of the mean RNFL thickness was not found in the post-ON eyes compared to unaffected eyes of CIS patients (p = 0.14). Eyes of MS patients with a history of ON showed significantly reduced mean RNFL thickness (73.1?m; p < 0.001) compared to the comparative sample (100.8 ?m). Patients with MS with no history of ON also had lower mean RNFL thickness (91.4?m; p = 0.002). Statistically significant RNFL thinning was detected in the ON eyes compared to unaffected eyes (p = 0.04). Conclusions: SD-OCT is a promising tool designed to detect subclinical changes in RNFL thickness in patients with MS. Key words: multiple sclerosis – optic neuritis – clinically isolated syndrome – optical coherence tomography – retinal nerve fiber layer The authors declare they have no potential conflicts of interest concerning drugs, products, or services used in the study. The Editorial Board declares that the manuscript met the ICMJE “uniform requirements” for biomedical papers.
M. Michalec, P. Praksová, M. Hladíková, V. Matušková, E. Vlková, P. Štourač, L. Michalcová
Background: Optic neuritis (ON) is an inflammatory optic nerve disease that is strongly associated with multiple sclerosis (MS). Axonal damage in the optic nerve is manifested as retinal nerve fiber layer (RNFL) deficits that can be detected by the optical coherence tomography (OCT). Aim:To characterize the inner retinal layer changes in patients with clinically isolated syndrome (CIS) and MS while utilizing the spectral domain OCT (SD-OCT) and a comparative sample of healthy controls. Participants and methods: 30 eyes of 15 patients with CIS, 104 eyes of 52 MS patients with or without history of ON and 30 eyes of healthy patients that underwent SD-OCT examination. Results: CIS ON eyes had lower mean RNFL thickness (92.1 ?m; p = 0.007) compared to the comparative sample (100.8 ?m). The mean RNFL thickness decrease (97.5 ?m; p = 0.25) was not detected in the eyes unaffected by CIS ON. Reduction of the mean RNFL thickness was not found in the post-ON eyes compared to unaffected eyes of CIS patients (p = 0.14). Eyes of MS patients with a history of ON showed significantly reduced mean RNFL thickness (73.1?m; p < 0.001) compared to the comparative sample (100.8 ?m). Patients with MS with no history of ON also had lower mean RNFL thickness (91.4?m; p = 0.002). Statistically significant RNFL thinning was detected in the ON eyes compared to unaffected eyes (p = 0.04). Conclusions: SD-OCT is a promising tool designed to detect subclinical changes in RNFL thickness in patients with MS. Key words: multiple sclerosis – optic neuritis – clinically isolated syndrome – optical coherence tomography – retinal nerve fiber layer The authors declare they have no potential conflicts of interest concerning drugs, products, or services used in the study. The Editorial Board declares that the manuscript met the ICMJE “uniform requirements” for biomedical papers.
M. Michalec, P. Praksová, M. Hladíková, V. Matušková, E. Vlková, P. Štourač, L. Michalcová