الفهرس 
ANTERIOR GLOTTIC WEBOnly 14 pages are availabe for public view
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Abstract
level of the true vocal folds is known as anterior glottic web. Congenital anterior glottic webs are less common than acquired anterior glottic webs. Endotracheal intubation, laryngeal trauma or surgery close to the anterior commissure, radiotherapy, and, in rare cases, inflammatory processes can cause them at any age.
Objective: To decide the need for endoscopic keel placement for management of anterior glottic web, prevention of vocal cord adhesions and to reduce the recurrence.
Patients and Methods: This study was systematic review and meta-analysis study included research articles with the following criteria; retrospective, prospective, case series, case report studies, published in English language, in the last 25 years, only studies on humans, studies on congenital and acquired anterior glottic web, studies with endoscopic keel placement, and studies without keel placement.
Results: The main findings of the current study was that; among keel used studies, the recurrence proportion was 13.5% with 95% Confidence interval (5.5%-24.2%), the proportion of granulation from pooled studies was found in 3.44% with 95% Confidence interval (1.16%-7.5%)and regarding voice improvement in this meta-analysis high significant improvement (94.2%) with 95% Confidence interval (85.8%-99%) was reported; Recurrence among the 3 studies did not use keel was 30.6% with 95% Confidence interval (7%-61. 8%). However, the voice improvement was reported among 97.4% with 95% Confidence interval (91.5 %-99.9%)
Data Sources: Medline databases (PubMed, Medscape, ScienceDirect. EMF-Portal) and all materials available in the Internet till 2019.
Conclusion: The optimal treatment of acquired anterior glottic web remains controversial; Placement of a keel has low recurrent rate and good voice improvement but had several disadvantages such as the need for two separate operations under general anaesthesia, prolonged recovery, and the risk of infection and granuloma formation. However other techniques as the mucosal flap technique had better voice improvement without granulation formation with high success rates