Related Experiment Video
Updated: May 16, 2026

A Surgical Procedure for the Administration of Drugs to the Inner Ear in a Non-Human Primate Common Marmoset (Callithrix jacchus)
Published on: February 27, 2018
Mometasone implant for chronic rhinosinusitis
Calvin C Wei1, David W Kennedy
1Department of Otorhinolaryngology, Head and Neck Surgery, University of Pennsylvania School of Medicine, Philadelphia, PA, USA.
The Propel mometasone-eluting stent offers a novel way to deliver steroids after ethmoid surgery. This FDA-approved device reduces inflammation and polyp formation, improving patient outcomes.
Area of Science:
- Otolaryngology
- Drug Delivery Systems
- Biomaterials
Background:
- Chronic rhinosinusitis often requires surgical intervention.
- Postoperative management of ethmoid cavities presents challenges in controlling inflammation and adhesions.
- Localized steroid delivery aims to improve therapeutic efficacy and reduce systemic side effects.
Purpose of the Study:
- To review the mode of action of the Propel mometasone-eluting stent.
- To evaluate the evidence supporting the efficacy of this novel steroid-eluting implant.
- To discuss its role in managing chronic rhinosinusitis after ethmoidectomy.
Main Methods:
- Review of three recent clinical trials on the mometasone-eluting stent.
- Analysis of data on inflammation, polyp formation, adhesions, and need for oral steroids.
- Assessment of reported adverse effects.
Main Results:
- Statistically significant reductions in inflammation, polyp formation, and postoperative adhesions.
- Significant decrease in the need for oral steroids and lysis of adhesions.
- Minimal adverse effects including infection, crusting, and granulation tissue.
Conclusions:
- The Propel mometasone-eluting stent provides localized, controlled steroid delivery to the nasal mucosa.
- It is effective in reducing inflammation and adhesions post-ethmoidectomy.
- This technology offers a new therapeutic option for chronic rhinosinusitis management.
Related Concept Videos
Antiasthma Drugs: Inhaled Corticosteroids and Glucocorticoids
ICS work through a multifaceted mechanism of action. They suppress the inflammatory response caused by the proliferation of TH cells. They also reduce the transcription of the IL-2 gene, which is involved in the...
Inhaled Medications
Antiasthma Drugs: Mast Cell Stabilizers and Anti-IgE Drugs
Mast cell stabilizers, such as cromolyn (also known as sodium cromoglycate) and nedocromil (Tilade), are effective drugs in asthma management. These stabilizers hinder histamine release by skillfully obstructing the activation of mast cells and other cellular entities. Notably, they navigate this task without...
Epistaxis
Etiology
Possible causes of this condition include high blood pressure, trauma, low humidity, upper respiratory tract infections, allergies, foreign bodies, nasal inhalation of corticosteroids or illicit drugs, excessive use of decongestant nasal sprays, facial or nasal surgery, anatomic malformation, tumors, or systemic...

