TY - JOUR
T1 - Iris arteriovenous communication
T2 - Clinical and angiographic features
AU - Battaglia Parodi, Maurizio
AU - Bondel, Elvio
AU - Saviano, Sandro
AU - Da Pozzo, Stefano
AU - Bergamini, Luca
AU - Ravalico, Giuseppe
PY - 1998
Y1 - 1998
N2 - Background: Iris arteriovenous communication (IAVC) represents a quite rare congenital anomaly, consisting of abnormal vascular connection bypassing the iris capillary bed. The aim of the present study is to describe clinical and angiographic pattern of IAVC on iris fluorescein angiography (IFA) and on indocyanine green videoangiography (IICGV). Methods: During a mean follow-up period of 33.5 months, eight patients affected by IAVC underwent at least three ophthalmological examinations completed by IFA and IICGV. Results: IFA allows the detection of IAVC vascular structures, evidencing afferent and efferent branches, which show a rapid filling, without any evidence of leakage or iris hypoperfusion. IICGV shows more precisely the entire vascular pattern of IAVC, revealing also the presence of iris hypoperfusion in the sector in which the IAVC lay. One patient underwent cataract surgery; three months later, two neovascular tufts appeared in the hypoperfused area related to IAVC. In all other patients, periodical examinations did not reveal any clinical or angiographic changes. Conclusion: In IAVC, the clinical picture appears stable throughout the follow-up; both angiographic techniques seem able to precisely delineate the vascular pattern. Nevertheless, IICGV is superior in showing iris hypoperfusion surrounding the vascular abnormality. Particular care must be drawn to patients affected by IAVC who need cataract surgery.
AB - Background: Iris arteriovenous communication (IAVC) represents a quite rare congenital anomaly, consisting of abnormal vascular connection bypassing the iris capillary bed. The aim of the present study is to describe clinical and angiographic pattern of IAVC on iris fluorescein angiography (IFA) and on indocyanine green videoangiography (IICGV). Methods: During a mean follow-up period of 33.5 months, eight patients affected by IAVC underwent at least three ophthalmological examinations completed by IFA and IICGV. Results: IFA allows the detection of IAVC vascular structures, evidencing afferent and efferent branches, which show a rapid filling, without any evidence of leakage or iris hypoperfusion. IICGV shows more precisely the entire vascular pattern of IAVC, revealing also the presence of iris hypoperfusion in the sector in which the IAVC lay. One patient underwent cataract surgery; three months later, two neovascular tufts appeared in the hypoperfused area related to IAVC. In all other patients, periodical examinations did not reveal any clinical or angiographic changes. Conclusion: In IAVC, the clinical picture appears stable throughout the follow-up; both angiographic techniques seem able to precisely delineate the vascular pattern. Nevertheless, IICGV is superior in showing iris hypoperfusion surrounding the vascular abnormality. Particular care must be drawn to patients affected by IAVC who need cataract surgery.
KW - Arteriovenous communication
KW - Fluorescein angiography
KW - Indocyanine green angiography
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U2 - 10.1023/A:1006054221016
DO - 10.1023/A:1006054221016
M3 - Article
C2 - 10090441
AN - SCOPUS:6544294675
VL - 22
SP - 1
EP - 5
JO - International Ophthalmology
JF - International Ophthalmology
SN - 0165-5701
IS - 1
ER -