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DOI: 10.1055/s-0028-1109311
© Georg Thieme Verlag KG Stuttgart · New York
Retinal Angiomatous Proliferations: When Should We Suspect Them and How Should We Detect Them?
Retinale angiomatöse Proliferation (RAP): Wie wird der Verdacht bestätigt?Publication History
received: 25.9.2008
accepted: 25.12.2008
Publication Date:
21 April 2009 (online)
Zusammenfassung
Hintergrund: Erkennung klinischer und angiografischer Charakteristika retinaler angiomatöser Proliferation (RAP) bei Patienten mit altersbedingter Makuladegeneration. Patienten und Methoden: 26 Augen von 24 Patienten mit RAP wurden einer retrospektiven Analyse unterzogen bei Vorlage von Farb- und s/w-Bild, Fluoreszein- (FA-) und Indozyaningrün-Angiografie (ICGA). Biomikroskopie und Angiografien wurden ausgewertet und die Videosequenzen zur RAP-Einteilung verwendet. Ergebnisse: Es wurden 29 RAP diagnostiziert. Stadium 1 war bei 3 / 29, Stadium 2 bei 3 / 29 vorhanden, Stadium 3 bei 23 / 29, von denen 21 chorioretinale Anastomosen hatten. Insgesamt waren 83 Gefäße beteiligt, 35 davon waren Arterien, 48 Venen. RAP erschienen zumeist als „hot Spots“, in nur einem Fall plakoid. Retinale Pigmentepithelabhebung (PED) wurde in 22 / 26 Fällen per ICGA gesehen, zystoides Makulaödem bei 13 / 26 per FA und intraretinale ICG-Leckage bei 6 / 26 Augen. Retinale Blutungen traten bei 23 / 26 Augen auf; nur eine davon war nicht intraretinal und kleiner als einen halben Papillendurchmesser groß. 2 / 24 Patienten wiesen bilaterale RAP auf. Schlussfolgerungen: Der Verdacht auf RAP besteht bei harten Exsudaten, feinen intraretinalen Blutungen, Pigmentepithelabhebung und „hot Spot“ in der ICGA. Sowohl FA- als auch ICG-Videoangiografie bieten eine ausreichende zeitliche Auflösung und retinale Flussdarstellung, die eine RAP-Stadieneinteilung und Darstellung von Anastomosen ermöglicht.
Abstract
Background: The aim of this study was to identify the clinical and angiographic features of retinal angiomatous proliferations (RAPs) in patients with age-related macular degeneration. Patients and Methods: 26 eyes of 24 patients with RAPs were retrospectively reviewed. All patients had colour and red-free photographs, and fluorescein (FA) and indocyanine-green angiography (ICGA). The biomicroscopic and angiographic characteristics were evaluated and video-angiograms were analysed for staging the RAPs. Results: The total number of RAPs was 29. Stage 1 was present in 3 / 29, stage 2 in 3 / 29 and stage 3 in 23 / 29 with a chorio-retinal anastomosis identified in 21 of these 23 eyes. The total number of retinal vessels involved were 83, 35 were arteries and 48 were veins. RAPs were seen in ICGA as hot spots in all but one case where it appeared as a plaque. A retinal pigment epithelial detachment (PED) was observed in 22 / 26 eyes. Cystoid macular oedema was observed in 13 / 26 eyes in FA and intraretinal ICG leakage in 6 / 26 eyes. Hard exudates were present in 21 / 26 eyes. Retinal haemorrhages were present in 23 / 26 eyes; all but one were intraretinal and had a size of less than half of the optic disc diameter. The RAP was bilateral in 2 / 24 patients. Conclusions: Clinicians should suspect the diagnosis of RAP when hard exudates, small intraretinal haemorrhages, PED or a hot spot in ICGA are present. Both fluorescein and ICG video-angiography provide adequate temporal resolution and vascular flow examination leading to easier RAP staging and identification of the anastomosis.
Schlüsselwörter
retinale angiomatöse Proliferation - harte Exsudate - Pigmentepithelabhebung - „hot Spot“ - Videoangiografie
Key words
retinal angiomatous proliferation - hard exudates - pigment epithelium detachment - hot spot - video-angiography
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Prof. Constantin J. Pournaras, MD
Department of Ophthalmology, Geneva University Hospitals
22 rue Alcide Jentzer
1211 Geneva 14
Switzerland
Phone: ++ 41/22/3 82 83 94
Fax: ++ 41/22/3 82 84 21
Email: constantin.pournaras@hcuge.ch