Hasil Pencarian  ::  Simpan CSV :: Kembali

Abstrak :
Iskemia makula merupakan penyebab penurunan penglihatan pada retinopati yang berhubungan dengan progresi retinopati diabetik dan dapat terjadi sebelum mikroaneurisma terlihat secara klinis. Fovea avascular zone (FAZ) merupakan area di makula yang mencerminkan kondisi mikrokapiler makula dan sensitif terhadap iskemia. Penelitian ini bertujuan untuk mengetahui perbandingan parameter area dan sirkularitas FAZ pleksus kapiler superfisial (PKS) dan pleksus kapiler dalam (PKD) yang diukur menggunakan Optical Coherence Tomography Angiography (OCTA) pada pasien diabetes melitus (DM) dengan dan tanpa retinopati diabetik. Penelitian potong lintang dilakukan pada 90 mata pasien diabetes yang terbagi menjadi lima kelompok yaitu DM tanpa retinopati diabetik , non proliferative diabetic retinopathy (NPDR) ringan, NPDR sedang, NPDR berat, dan proliferative diabetic retinopathy (PDR). Area dan sirkularitas FAZ PKS dan PKD pada OCTA makula 3x3 mm diukur menggunakan ImageJ. Area FAZ PKS pada NPDR ringan, NPDR berat, dan PDR secara bermakna lebih lebar dibandingkan dengan DM tanpa retinopati diabetik (p=0,026). Sirkularitas FAZ PKD secara bermakna lebih rendah pada kelompok NPDR sedang dan berat dibandingkan dengan NPDR ringan (p=0,003). Pelebaran dan perubahan bentuk FAZ PKS dan PKD pada retinopati diabetik dapat dideteksi dengan OCTA. Pelebaran FAZ PKS dan penurunan sirkulasi FAZ PKD terjadi mulai dari retinopati derajad awal. ......Macular ischemia is cause of decreased vision in diabetic retinopathy (DR) associated with the progression of retinopathy and can occur before microaneurysms are detected clinically. Fovea avascular zone (FAZ) is an area in macula that reflects the condition of macular microcapillaries and sensitive to ischemia. This study aims to compare area and circularity of superficial capillary plexus (SCP) and deep capillary plexus (DCP) FAZ as measured using Optical Coherence Tomography Angiography (OCTA) in diabetic patient with and without DR. A cross-sectional study was conducted on 90 eyes of diabetic patients divided into five groups, namely DM with no DR, mild non-proliferative DR (NPDR), moderate NPDR, severe NPDR, and proliferative DR (PDR). Area and circularity of SCP and DCP FAZ in 3×3 mm macular OCTA was measured using ImageJ. The SCP FAZ area was significantly larger in mild NPDR, severe NPDR, and PDR compared to no DR (p=0.026). DCP FAZ circularity was significantly lower in moderate and severe NPDR compared to the mild NPDR (p=0.003). Enlargement and irregularity of SCP and DCP FAZ in DR can be detected by OCTA. Enlargement of SCP FAZ area and decrease in DCP FAZ circularity occurs from early degree of DR.

Abstrak :
Latar Belakang: Silicone oil (SO) merupakan salah satu substitusi vitreus yang digunakan pasca vitrektomi pars plana (VPP) dalam manajemen ablasio retina rhegmatogen. Beberapa komplikasi penggunaan SO meliputi katarak, peningkatan tekanan bola mata, emulsifikasi, keratopati hingga menurunnya ketebalan dan densitas vaskular makula. Tujuan: Mengetahui perubahan ketebalan makula sentral serta densitas vaskular pleksus superfisial pada pasien ablasio retina rhegmatogen pasca VPP dengan tamponade SO. Metode: 41 pasien ablasio dianalisis dalam studi ini yang menggunakan dua desain: observasional prospektif tanpa pembanding untuk membandingkan efek tamponade SO minggu-1 dengan minggu-4 dan potong lintang untuk membandingkan mata kontralateral dengan minggu-1 pasca tamponade SO. Hasil: Central subfield thickness (CST), superficial vascular density (SVD) serta superficial perfusion density (SPD) pada minggu-1 lebih rendah dibandingkan mata kontralateral (p<0,001). Pada minggu-4 pasca tamponade SO ditemukan peningkatan CST, SVD, SPD dibandingkan minggu-1 meskipun tidak signifikan secara statistik. Pada analisis tambahan, didapatkan usia diatas 50 tahun mengalami kecenderungan penurunan SVD (p 0,033) dan SPD (0,011) dibandingkan kelompok usia muda. Kesimpulan: Tidak didapatkan penurunan ketebalan makula sentral dan densitas vaskular pleksus kapiler superfisial makula di minggu-4 pasca PPV dengan SO. Didapatkan ketebalan makula sentral dan densitas vaskular pleksus kapiler superfisial makula yang lebih rendah di minggu-1 pasca tamponade SO dibandingkan mata kontralateral ......Background: Silicone oil (SO) is one of the vitreous substitutes used after pars plana vitrectomy (PPV) for rhegmatogenous retinal detachment (RRD) management. Complications arising from SO include cataracts, increased ocular pressure, emulsification, keratopathy, and decreased macular thickness and vascular density. Objective: To determine changes in central macular thickness and superficial vascular density in RRD patients after PPV with SO. Method: 41 patients were included in this study, which comprises two designs: a prospective observational without comparison to compare the effect of SO tamponade week-1 with week-4 and a cross-sectional design to compare the contralateral eye with week-1 after SO tamponade. Results: Central subfield thickness (CST), superficial vascular density (SVD), and superficial perfusion density (SPD) were lower at week 1 after PPV with SO compared to the contralateral eye (p<0.001). At week 4 after PPV with SO, there was an increase in CST, SVD, and SPD compared to week 1, although not statistically significant. In additional analysis, we found that those aged over 50 had tendencies toward decreased SVD (p 0.033) and SPD (0.011) compared to the younger age group. Conclusion: There was no reduction in central macular thickness or superficial vascular density at week 4 after PPV with SO in RRD patients. Central macular thickness and superficial vascular density were lower on week 1 after SO tamponade compared to the contralateral eye.