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Yıl:2020; Cilt: 31; Sayı: 4>> Özet
TAM METİN
Türk Psikiyatri Dergisi; 2020;31(4):239-243
Kannabis Kullanan Olgularda Optik Koherens Tomografi Bulguları
A Dayi, Ö Dayi, E Kurt, N Yorguner
Beykent Üniversitesi,İstanbul
Amaç: Kannabis kullanımının retina sinir lifi tabakası (RSLT) ve maküler ganglion hücre-iç pleksiform tabaka (MGH-İPT) üzerine olan yapısal etkilerinin optik koherens tomografi ile değerlendirilmesi amaçlanmıştır. Yöntem: Bu prospektif, karşılaştırmalı çalışmaya Muş Devlet Hastanesi Psikiyatri Polikliniği’ne başvuran ve kannabis kullanımı mevcut olan 26 kişi ile bu kişilerle yaş ve cinsiyet açısından uyumlu 27 sağlıklı gönüllü dâhil edilmiştir. Her iki gruba optik koherens tomografi (OKT) çekimi uygulanmıştır. OKT cihazı tarafından otomatik olarak ölçülen RSLT ve MGH-İPT kalınlıkları kaydedilerek her iki grup arasında karşılaştırılmıştır. Bulgular: Her iki grup arasında sosyodemografik veriler açısından anlamlı bir fark saptanmadı. Ortalama retina sinir lifi kalınlığı ile süperior, nazal ve inferior kadranlarda iki grup arasındaki fark istatistiksel olarak anlamlı değilken temporal kadranda istatistiksel olarak anlamlı fark saptanmıştır (p=0,022). Maküler ganglion hücre-iç pleksiform tabaka kalınlıklarının analizinde ise her iki grup arasında ortalama, inferotemporal, inferior, inferonasal ve süperonazal kadranlarda anlamlı bir fark saptanmazken süperior ve süperotemporal kadranlarda istatistiksel olarak anlamlı incelme saptanmıştır (p=0,006; p=0,027). Sonuç: Bu bulgular kannabis kullanımının retina tabakaları üzerinde incelmeye yol açtığını desteklemektedir. Beynin kolayca izlenebilir parçası olması bakımından retina sinir lifi ve ganglion hücre tabakasının OKT ile değerlendirilmesi kannabis kullananlarda toksik ve dejeneratif etkinin takibi açısından önemli olabilir.
Optical Coherence Tomography Findings in Cannabis Users
Objective: In this study, we aimed to evaluate the effects of cannabis use on the retinal nerve fiber layer (RNFL) and the macular ganglion cell – inner plexiform layer GCL-IPL using optical coherence tomography (OCT). Method: This prospective, comparative study included 26 cannabis users who were evaluated at the Psychiatry Outpatient Unit of Mus State Hospital and 27 age and gender matched healthy controls. OCT was performed on both groups. The RNFL and GCL - IPL thicknesses, measured automatically by OCT, were recorded and compared between the groups. Results: The sociodemographic parameters of the two groups did not differ. The mean retinal nerve fiber thickness and thickness at the superior, nasal, inferior quadrants were not significantly different; but there was a significant difference at the temporal quadrant (p=0,022). In the analysis of macular ganglion cell – inner plexiform layer, the mean values as well as the infetotemporal, inferior, inferonasal and superonasal quadrants did not show significant differences. But there was a statistically significant decrease in the superior and superotemporal quadrants (p=0,006, p=0,027). Conclusion: These findings suggest that cannabis use leads to the thinning on retinal layers. As it is an easily observable part of the brain, evaluating retinal nerve fiber and ganglion cell layer with OCT may be important for monitoring toxic and degenerative effects in cannabis users.

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