PMID- 25147879
OWN - NLM
STAT- MEDLINE
DCOM- 20140822
LR  - 20211021
IS  - 1435-702X (Electronic)
IS  - 0721-832X (Linking)
VI  - 252
IP  - 3
DP  - 2014 Mar
TI  - Branch retinal vein occlusion and vitreovascular traction: a preliminary spectral 
      domain OCT case-control study.
PG  - 375-81
AB  - OBJECTIVE: Branch retinal vein occlusion (BRVO) typically occurs at an 
      arteriovenous (AV) crossing site. Although the pathogenesis is unclear, 
      vitreovascular traction might have a significant role in some BRVO cases. The 
      purpose of present study was to determine the incidence of vitreoretinal traction 
      at the obstruction site in patients diagnosed with BRVO. METHODS: In this 
      prospective observational case-control study, 32 consecutive BRVO patients were 
      studied with spectral-domain optical coherence tomography (SD-OCT) to detect the 
      presence of vitreovascular traction or vitreous adherence at the occlusion site. 
      RESULTS: SD-OCT directed to the occlusion site revealed a vitreovascular traction 
      at this point in eight eyes (25 %). Fourteen eyes (43.75 %) were associated with 
      an adherence of posterior hyaloids without signs of retinal traction, whereas ten 
      eyes (31.25 %) had neither vitreoretinal adherence nor vitreous traction. 
      Regarding either the same vessel segment of the fellow eye, none of the cases 
      revealed vitreovascular traction in the correspondent AV crossing site; 12 cases 
      (37.5 %) presented vitreoretinal adherence; and the remaining 20 cases (62.5 %) 
      showed neither traction nor adhesion. Thus, vitreovascular traction in the 
      occlusion site was significantly associated with BRVO (p = 0.024, chi-squared 
      test). B-scan ultrasonography showed that the posterior vitreous cortex remains 
      more frequently attached in eyes with BRVO compared to unaffected fellow eyes 
      (p = 0.041, chi-squared test). CONCLUSIONS: A common firm vitreous adhesion at 
      the obstruction site is reported herein, pointing out the possible role of 
      vitreovascular traction in the etiology of some cases of BRVO. Likewise, although 
      not all BRVO cases can be explained by this pathogenic mechanism, an attached 
      posterior vitreous cortex might be a cofactor in the origin of this entity.
FAU - Ascaso, Francisco J
AU  - Ascaso FJ
FAU - Padgett, Esteban
AU  - Padgett E
FAU - Nunez, Esther
AU  - Nunez E
FAU - Villen, Laura
AU  - Villen L
FAU - Grzybowski, Andrzej
AU  - Grzybowski A
FAU - Cristobal, Jose A
AU  - Cristobal JA
LA  - eng
PT  - Journal Article
PT  - Observational Study
PL  - Germany
TA  - Graefes Arch Clin Exp Ophthalmol
JT  - Graefe's archive for clinical and experimental ophthalmology = Albrecht von 
      Graefes Archiv fur klinische und experimentelle Ophthalmologie
JID - 8205248
SB  - IM
MH  - Adult
MH  - Aged
MH  - Aged, 80 and over
MH  - Case-Control Studies
MH  - Female
MH  - Fluorescein Angiography
MH  - Humans
MH  - Male
MH  - Middle Aged
MH  - Prospective Studies
MH  - Retinal Vein Occlusion/*diagnosis
MH  - Retinal Vessels/*pathology
MH  - Risk Factors
MH  - Tissue Adhesions/*diagnosis
MH  - *Tomography, Optical Coherence
MH  - Vitreous Body/*pathology
EDAT- 2014/08/26 06:00
MHDA- 2014/08/26 06:01
CRDT- 2014/08/23 06:00
PHST- 2014/08/23 06:00 [entrez]
PHST- 2014/08/26 06:00 [pubmed]
PHST- 2014/08/26 06:01 [medline]
AID - 10.1007/s00417-013-2463-8 [doi]
PST - ppublish
SO  - Graefes Arch Clin Exp Ophthalmol. 2014 Mar;252(3):375-81. doi: 
      10.1007/s00417-013-2463-8.