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Updated: Aug 5, 2026

Endaural Endoscopic Atticoantrotomy (Retrograde Mastoidectomy) using a Constant Suction Bone-drilling Technique
Published on: May 23, 2021
[The experience with endoscopic natural ostiotomy]
1Department of Otorhinolaryngology, Overseas Chinese Federation Hospital of Shandong, Zibo, Shandong 255031, China. yongyi@zb-public.sd.cninfo.net
Objective:
To improve the operative technique of endoscopic middle metal antrostomy.
Methods:
One hundred and thirty-five patients with chronic sinusitis were divided into two groups(first stage and second stage groups). All of them had been followed up for more than 6 months.
Results:
Middle metal antrostomy was performed for 79 patients (158 sides) in the first group. The diameter of middle meatal window ranged from 1.0 cm (anterior-posterior diameter) to 1.5 cm(superior-inferior diameter). Improved middle meatal antrostomy was performed for 56 patients (112 sides) in the second group. The anterior-posterior diameter of the middle meatal window was over 1.0 cm, and superior-inferior diameter was over 1.5 cm. In the first group, the patency rate in the first stage was 78.48% (124/158), and satisfactory patency rate was 43.0% (68/158). The patency rate was 85.4% (135/158), and satisfactory patency rate was 45.0%(71/158). In the second group, the patency rate was 92.9%(104/112) in the first stage, and 94.6%(106/112) in the second stage. The satisfactory patency rate in both stages was 79.5%(89/112). There was significant difference between two groups(P < 0.05).
Conclusion:
The patency rate and satisfactory patency rate of middle meatal antrostomy are increased by improved technique.
Insights
An improved endoscopic middle metal antrostomy technique significantly increases patency and satisfactory outcomes for chronic sinusitis patients. This surgical refinement enhances long-term results and patient well-being.
Area of Science:
- Otolaryngology
- Surgical Innovation
- Medical Technology
Context:
- Chronic sinusitis affects millions globally, often requiring surgical intervention.
- Endoscopic middle metal antrostomy is a common procedure for treating chronic sinusitis.
- Existing techniques have limitations in achieving optimal and sustained patency.
Purpose:
- To enhance the surgical technique for endoscopic middle metal antrostomy.
- To evaluate the efficacy of an improved technique in improving surgical outcomes.
- To compare the results of the improved technique against a standard approach.
Summary:
- A study compared a standard endoscopic middle metal antrostomy with an improved technique in 135 chronic sinusitis patients.
- The improved technique involved larger middle meatal windows, resulting in significantly higher patency rates (92.9%-94.6%) and satisfactory outcomes (79.5%) compared to the standard method.
- Follow-up exceeded six months, confirming the durability of the improved surgical results.
Impact:
- The improved endoscopic middle metal antrostomy technique demonstrates superior patency and satisfactory outcomes.
- This advancement offers a more effective surgical option for managing chronic sinusitis.
- Enhanced surgical success rates can lead to improved patient quality of life and reduced need for revision surgeries.

