Sinus Surgery: When Is Earlier Intervention Beneficial?

Research is showing the effects of earlier surgical referral for patients with chronic rhinosinusitis.

By
October 13, 2026
5 min

Keck Medicine of USC

Overview

For adults with chronic rhinosinusitis (CRS) whose symptoms persist despite medical therapy, the MACRO trial found greater six-month improvement in disease-specific quality of life with endoscopic sinus surgery (ESS) than with clarithromycin or placebo. Retrospective data described in the article associate surgery within 12 months of diagnosis, rather than after five or more years, with lower postoperative healthcare utilization; the article also reports that the 2025 surgical guideline bases candidacy on individual disease and patient factors rather than a fixed duration of prior medical therapy.

Background

CRS can substantially impair health-related quality of life, with social functioning scores reported as lower than those for most other chronic diseases. Symptoms may develop gradually, and patients may adapt to persistent nasal obstruction and related effects on daily activities and sleep. Medical management, including intranasal corticosteroids and saline irrigation, is described as first-line care, while ESS is considered for persistent symptoms. The timing of referral matters because the article reports associations between earlier surgery, greater symptom improvement, and reduced subsequent healthcare use.

Data Highlights

Evidence	Population or comparison	Reported result
MACRO randomized trial, published in The Lancet in 2025	514 adults with CRS randomized to ESS, clarithromycin, or placebo; all received intranasal corticosteroids and saline irrigations	At six months, mean SNOT-22 reduction was 20.44 points greater with ESS than placebo; the reported minimum clinically important difference was 8.9 points. Clarithromycin did not significantly outperform placebo.
UK retrospective analysis using the Clinical Practice Research Datalink	ESS within 12 months of diagnosis compared with surgery after five or more years	The late-surgery cohort had significantly greater postoperative healthcare utilization, including more physician visits and prescriptions per patient per year.
Related retrospective study: endoscopic versus open sinus surgery	160 adults with CRS and nasal polyps after at least 12 weeks of standardized medical therapy; 80 per group	The supplied summary reports significantly faster recovery and fewer complications with endoscopic surgery; it provides no numerical effect estimates.

Key Findings

The article describes CRS as a substantial quality-of-life burden, with impairment comparable to COPD, dialysis-dependent kidney failure, congestive heart failure, and cancer-related pain.
In the MACRO trial, ESS produced a mean six-month SNOT-22 reduction 20.44 points greater than placebo, exceeding the stated 8.9-point minimum clinically important difference.
MACRO found no significant benefit of clarithromycin over placebo in the trial setting; the article reports that long-term macrolides should not be used routinely.
The UK retrospective analysis associated ESS within 12 months of diagnosis, compared with surgery after five or more years, with lower postoperative healthcare utilization.
The 2025 AAO-HNSF surgical guideline, as summarized in the supplied web research context, advises assessing candidacy using symptoms, disease characteristics, quality of life, and prior therapy; it does not require a predefined regimen or duration of medical therapy before ESS.
A related retrospective study of 160 adults with CRS and nasal polyps reported faster recovery and fewer complications after endoscopic than traditional open sinus surgery.

Clinical Implications

For patients who remain symptomatic despite appropriate medical management, the article supports considering referral for ESS, with timing and candidacy assessed individually. The supplied guideline summary advises against requiring a fixed duration of medical therapy before surgery and describes postoperative follow-up at 3–12 months with symptom assessment and nasal endoscopy. The article notes that saline irrigations and steroid therapy remain important after ESS to help prevent scar tissue and recurrence.

Conclusion

The supplied evidence supports ESS as an effective option for appropriately selected adults with persistent CRS symptoms, while retrospective findings associate earlier intervention with lower subsequent healthcare utilization. Surgical decisions should reflect individual disease characteristics, prior treatment, quality of life, and expected ongoing disease management.