A comparative study of ceruminolytic agents

Area of Science:

• Otolaryngology
• Pharmacology

Background:

• Impacted earwax (cerumen impaction) is a common condition affecting adults.
• Various ceruminolytic agents are used to soften earwax, facilitating its removal.
• Assessing the comparative efficacy of different ceruminolytic agents is crucial for clinical practice.

Purpose of the Study:

• To evaluate and compare the efficacy of four different ceruminolytic agents.
• To determine the most effective agent for treating hard impacted earwax in adults.
• To provide evidence-based recommendations for ceruminolytic agent selection.

Main Methods:

• A prospective study involving adult participants (>20 years) with score 4 hard impacted earwax.
• Four ceruminolytic agents were tested: 2% paradichlorobenzene, 10% sodium bicarbonate, 2.5% acetic acid, and normal saline.
• Efficacy was assessed based on post-treatment cerumen score, number of syringing attempts needed, and appearance of removed cerumen.

Main Results:

• 2% paradichlorobenzene demonstrated superior efficacy in softening and facilitating the removal of impacted earwax.
• 10% sodium bicarbonate showed significant efficacy, closely following 2% paradichlorobenzene.
• 2.5% acetic acid had moderate efficacy, while normal saline was the least effective agent.

Conclusions:

• 2% paradichlorobenzene is the most effective ceruminolytic agent for hard impacted earwax in adults.
• 10% sodium bicarbonate is a viable and effective alternative.
• Normal saline is the least effective agent for this indication.