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Endoscopic Inferior Meatal Antrostomy for Antrochoanal Polyps: A Long-Term Follow-Up.

Roee Landsberg¹, Muhamed Masalha¹, Ariel Margulis¹

¹A.R.M, Center of Otolaryngology, Head and Neck Surgery, Assuta Medical Center, Affiliated with Ben-Gurion University of the Negev, Beer Sheva, Israel.

ORL; Journal for Oto-Rhino-Laryngology and Its Related Specialties

|November 24, 2021

Summary

Endoscopic inferior meatal antrostomy (EIMA) offers a safe alternative to endoscopic middle meatal antrostomy (EMMA) for treating antrochoanal polyps (ACPs), with no observed recurrences or complications in long-term follow-up.

Keywords:

Antrochoanal polyp Endoscopic inferior meatal antrostomy Endoscopic sinus surgery

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Area of Science:

Otolaryngology
Surgical Innovation
Rhinology

Background:

Antrochoanal polyps (ACPs) are commonly managed with endoscopic middle meatal antrostomy (EMMA).
Endoscopic inferior meatal antrostomy (EIMA) has emerged as a novel approach for maxillary sinus lesion clearance.
Direct comparison of long-term outcomes between EIMA and EMMA for ACPs is lacking.

Purpose of the Study:

To compare the long-term outcomes of endoscopic inferior meatal antrostomy (EIMA) versus endoscopic middle meatal antrostomy (EMMA) in patients with antrochoanal polyps (ACPs).

Main Methods:

Retrospective review of 38 patients treated for ACPs between 2009 and 2020.
Surgical approaches included EIMA, EMMA, or a combination.
Long-term follow-up assessments were conducted for all included patients.

Main Results:

EIMA was performed in 25 patients, EMMA in 7, and both in 6.
Median follow-up was 44 months, with no recurrences, synechiae, or injuries observed.
Two patients (8%) experienced small, nonobstructing cysts after EIMA.

Conclusions:

Endoscopic inferior meatal antrostomy (EIMA) avoids violation of the ostiomeatal complex.
EIMA provides excellent access to the anteroinferior maxillary sinus.
EIMA is a viable alternative to EMMA for antrochoanal polyp management.