Decreased prothrombin time after intravitreal bevacizumab in the early period in patients with proliferative diabetic retinopathy.

Abstract:

PURPOSE:To evaluate the effect of intravitreal bevacizumab (Avastin; Genentech, Inc., San Francisco, CA, USA) (IVB) injection on prothrombin time (PT) in patients with proliferative diabetic retinopathy (PDR) and nondiabetic patients. METHODS:Eighty-nine patients received primary IVB (1.25 mg) in one eye were investigated. The patients were divided into three groups: 34 PDR (diabetic group), 26 nondiabetic (nondiabetic group) patients received IVB and 29 PDR patients without IVB (control group). The levels of PT were detected before and after IVB in study groups and at corresponding time-points in the control group. Paired samples t-test was conducted to compare the statistical differences of PT in each group. RESULTS:Significant difference (p < 0.001) of the levels of PT before and after IVB was observed in diabetic group in the early period, and the PT changes (11.0 ± 0.56 before and 10.6 ± 0.45 after IVB) were in fact within the normal range. There were no significant differences in other groups and other time-points (all p > 0.05). CONCLUSIONS:Intravitreal bevacizumab may lead to a decrease in the levels of PT in the early period after IVB in PDR patients, suggesting a temporarily potential effect of IVB on the extrinsic clotting pathway of blood coagulation cascade in diabetic patients.

journal_name

Acta Ophthalmol

journal_title

Acta ophthalmologica

authors

Qian J,Jiang YR

doi

10.1111/j.1755-3768.2011.02151.x

subject

Has Abstract

pub_date

2011-06-01 00:00:00

pages

e332-5

issue

4

eissn

1755-375X

issn

1755-3768

journal_volume

89

pub_type

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