Back to Journals » Clinical Ophthalmology » Volume 11

Preoperative subconjunctival combined injection of bevacizumab and mitomycin C before the surgical excision of primary pterygium: clinical and histological results

Authors Alsmman AH, Radwan G, Abozaid MA, Mohammed UA, Abd Elhaliem NG

Received 15 November 2016

Accepted for publication 20 February 2017

Published 10 March 2017 Volume 2017:11 Pages 493—501

DOI https://doi.org/10.2147/OPTH.S127700

Checked for plagiarism Yes

Review by Single-blind

Peer reviewers approved by Dr Amy Norman

Peer reviewer comments 5

Editor who approved publication: Dr Scott Fraser

Alahmady Hamad Alsmman,1 Gamal Radwan,1 Mortada Ahmed Abozaid,1 Usama Ali Mohammed,1 Nesreen Gamal Abd Elhaleim2

1Department of Ophthalmology, 2Department of Histology, Sohag Faculty of Medicine, Sohag University, Sohag, Egypt

Purpose: The aim of this study was to detect the clinical and histological effects of preoperative subconjunctival injection of both bevacizumab and mitomycin C (MMC) 1 month before the surgical excision of primary pterygium using a bare sclera technique.
Patients and methods:
A total of 20 patients with primary pterygium underwent subconjunctival combined injection of 0.1 mL of MMC (0.1 mg/mL) and 0.1 mL of bevacizumab (1.25 mg/0.1 mL) 1 month before bare sclera excision of the pterygium. The excised pterygium tissues were examined histologically and immunohistologically by CD31 staining, and the patients were followed up clinically for at least 2 years. The excised pterygia of two patients without preoperative injection were used for histological comparison.
Results: Clinically, there were no intraoperative or postoperative complications. No recurrence was noted during the follow-up period. Histologically, the previously injected pterygia showed a decreased number of epithelial cells and stromal fibroblasts. The latter were rounded or oval and swollen rather than spindle shaped, and some were degenerating or apoptotic. Collagen and elastic fibers were degenerated, distorted, and decreased in density, while blood capillaries were obliterated. There was a significant decrease in CD31-positive cells in previously injected pterygia.
Conclusion: Preoperative subpterygium combined injection of bevacizumab and MMC is safe and effective in reducing the postoperative recurrence of primary pterygium. Histological and immunohistological changes in the form of decreased fibrovascular activity and degeneration of the extracellular matrix and nerve axons were noted.

Keywords: subconjunctival bevacizumab, subconjunctival mitomycin C, histological changes, primary pterygium, CD31

Creative Commons License This work is published and licensed by Dove Medical Press Limited. The full terms of this license are available at https://www.dovepress.com/terms.php and incorporate the Creative Commons Attribution - Non Commercial (unported, v3.0) License. By accessing the work you hereby accept the Terms. Non-commercial uses of the work are permitted without any further permission from Dove Medical Press Limited, provided the work is properly attributed. For permission for commercial use of this work, please see paragraphs 4.2 and 5 of our Terms.

Download Article [PDF]  View Full Text [HTML][Machine readable]

 

Other article by this author:

The efficacy of Alahmady ring implantation in the management of neovascular glaucoma

Alsmman AH, Radwan G, Elagouz M, Mohammed UA

Clinical Ophthalmology 2017, 11:541-548

Published Date: 20 March 2017