A study of arteriovenous crossing patterns in branch retinal vein occlusion
Introduction: Branch retinal vein occlusion (BRVO) almost always occurs at an arteriovenous crossing, where the artery and vein share a common adventitial sheath. Aim: The study was designed to evaluate the anatomic position of the crossing vessels at the site of occlusion in a case of BRVO....
| Main Author: | |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Prathima Institute of Medical Sciences
2014-08-01
|
| Series: | Perspectives In Medical Research |
| Subjects: | |
| Online Access: | http://pimr.org.in/GOUD_may.pdf |
| Summary: | Introduction: Branch retinal vein occlusion
(BRVO) almost always occurs at an arteriovenous
crossing, where the artery and vein share a common
adventitial sheath.
Aim: The study was designed to evaluate the
anatomic position of the crossing vessels at the site
of occlusion in a case of BRVO.
Materials and Methods: A cross sectional
descriptive study was conducted among 20 BRVO
patients attending Ophthalmology outpatient
department of a tertiary care hospital during the
period of September 2013 to August 2014. A semi
structured questionnaire was used to evaluate the
sociodemographic characters and co-morbidity
among the patients. The fundus of the patients were
examined with 90D lens under slit lamp and the
fundus photographs were taken.
Results: Twenty patients were considered in the
study. Eleven were male and nine were female
patients. Mean age of the male group was
50.09±4.94 years. Mean age of the female group was
49.33±3.77 years. In all, there were 21 eyes with
branch retinal vein occlusion. Out of which 11 were
left eyes, eight were right eyes and one patient was
having occlusion in both the eyes. In BRVO cases,
among 17(80.9%) eyes, the artery was anterior to the
vein and in the remaining 4(19.1%) eyes the vein was
anterior to the artery. No statistically significant
difference was observed regarding the position of
artery and vein in BRVO and control eyes (p=0.9).
The superiotemporal occlusions were more in
number 13 (61.9%) as compared to inferiotemporal
occlusions in 8 (38.1%) eyes. Amajority 17(85%) of
patients were hypertensive.
Conclusion: In the present study the incidence of
artery anterior to the vein was higher compare to vein
anterior to the artery, the knowledge of which is
useful to understand the patho-physiology and
management of BRVO |
|---|---|
| ISSN: | 2348-1447 2348-229X |