Cost-effectiveness Analysis of Inferior Turbinate Reduction and Immunotherapy in Allergic Rhinitis

BACKGROUND

Allergic rhinitis (AR) is a common condition that is frequently associated with atopic inferior turbinate hypertrophy (ITH) resulting in nasal obstruction. Current guidelines support the use of subcutaneous allergen immunotherapy (SCIT) when patients fail pharmacologic management. However, there is a lack of consensus regarding the role of inferior turbinate reduction (ITR), a treatment that we hypothesize is cost-effective compared with other available treatments.

METHODS

We conducted a cost-effectiveness analysis comparing the following treatment combinations over a 5-year time horizon for AR patients presenting with atopic nasal obstruction who fail initial pharmacotherapy: (1) continued pharmacotherapy alone, (2) allergy testing and SCIT, (3) allergy testing and SCIT and then ITR for SCIT nonresponders, and (4) ITR and then allergy testing and SCIT for ITR nonresponders. Results were reported as incremental cost-effectiveness ratios (ICERs).

RESULTS

For patients who fail initial pharmacotherapy, prioritizing ITR, either by microdebrider-assisting submucous resection or radiofrequency ablation, before SCIT was the most cost-effective strategy. Probabilistic sensitivity analysis demonstrated that prioritizing ITR before SCIT was the most cost-effective option in 95.4% of scenarios. ITR remained cost-effective even with the addition of concurrent septoplasty.

CONCLUSION

For many AR patients who present with nasal obstruction secondary to atopic inferior turbinate hypertrophy that is persistent despite pharmacotherapy, ITR is a cost-effective treatment that should be considered prior to immunotherapy.

LEVEL OF EVIDENCE

NA - Laryngoscope, 2023 Laryngoscope, 134:1572-1580, 2024.

Efficacy of inferior turbinate reduction in pediatric patients: a prospective analysis

BACKGROUND

Chronic nasal congestion is a common presentation in the pediatric setting. For patients who fail to respond to maximal medical therapy and adenoidectomy, inferior turbinate reduction (ITR) may be a reasonable adjuvant surgical approach. Our objective was to prospectively evaluate nasal congestion symptoms and daily medication use in the year following ITR in children with and without allergic rhinitis (AR).

METHODS

Patients younger than 18 years undergoing ITR alone or in combination with nonsinonasal procedures were enrolled. Scores from the Nasal Obstruction Symptom Evaluation (NOSE) survey were collected preoperatively and at 3, 6, and 12 months postoperatively from 96 patients. Number and type of pertinent daily medications utilized were also analyzed using Wilcoxon signed-rank and McNemar's tests. Patients with and without comorbid AR were then compared using Wilcoxon rank-sum tests.

RESULTS

Median (range) NOSE sum scores significantly improved from preoperative median of 65 out of 100 points (0-100) to 20 (0-100), (z = 7.12, p < 0.001) at 12 months postoperatively. The median number of daily medications was significantly reduced from 1 (range, 0-4) preoperatively to 0 (range, 0-5) postoperatively (z = 2.38, p = 0.017). Fifty-six (58.3%) patients had AR. AR patients received more medications preoperatively and postoperatively compared with those without AR (z = -2.96, p = 0.003; z = -2.23, p = 0.024). At 12 months, NOSE scores remained significantly greater in patients with AR compared with those without AR (β = 11.6; 95% confidence interval [CI], 0.676-22.5; p = 0.038).

CONCLUSION

Our data highlight the need for a multimodal approach to chronic nasal congestion, particularly in children with AR.

Predictors of Long-Term Nasal Obstruction Symptom Evaluation Score Stability Following Septoplasty With Inferior Turbinate Reduction

OBJECTIVES/HYPOTHESIS

Determine the postoperative Nasal Obstruction Symptom Evaluation (NOSE) score stability between 1 and ≥6 months after septoplasty with inferior turbinate reduction (ITR). Education level and occupation were evaluated to determine their effects on NOSE score stability during the postoperative period.

STUDY DESIGN

Retrospective case series.

METHODS

This was a retrospective case series. Patients were included if they underwent septoplasty with ITR for nasal obstruction due to septal deviation and inferior turbinate hypertrophy. NOSE scores were collected preoperatively, and at 1 and ≥6 months postoperatively. Education level and occupation were collected postoperatively via telephone survey. Changes in NOSE scores were compared between the different time points. Education level and occupation were analyzed to determine if they affected NOSE scores.

RESULTS

There were 98 patients included, and 56 were male (57.1%). Mean NOSE scores preoperatively and at 1 and ≥6 months postoperatively were 72.1, 17.1, and 12.0, respectively. Patients demonstrated a statistically and clinically significant reduction in NOSE score at 1 month (-54.9, P < .001) and at ≥6 months postoperatively (-60.0, P < .001). The mean 6.2-point decrease in NOSE score from 1 to ≥6 months was statistically, but not clinically significant. There were no significant differences in NOSE score changes based on educational level and occupation.

CONCLUSIONS

Patients achieved statistically and clinically significant reductions in NOSE scores at 1 months, with no clinically significant differences in NOSE scores at ≥6 months, suggesting NOSE score stability between these postoperative time points. Neither education level nor occupation influenced NOSE scores.

LEVEL OF EVIDENCE

4 Laryngoscope, 131:E2105-E2110, 2021.

A Complicated Case of Congenital Nasal Pyriform Aperture Stenosis: Use of a Long-term Unilateral Nasal Stent

This case describes a full-term baby with pyriform aperture stenosis who failed intranasal dexamethasone and reflux therapy. She underwent repair via a sublabial approach and inferior turbinate reduction. Symptoms initially improved but she was unable to be weaned from intranasal steroids. Three subsequent surgeries ensued, including lysis of synechiae, further turbinate reduction, and placement of custom nasal stents, which failed as they became clogged frequently and were easily dislodged, leading to increased intranasal manipulation and postprocedural inflammation. She was eventually fitted and discharged with a large, unilateral stent. After 8 weeks, the stent was removed; she was tolerating full oral feeds. This case highlights the limitations of surgical repair and describes nontraditional uses of stenting.

A Prospective Study of Outcomes of Septoplasty with Turbinate Reductions in Patients with Allergic Rhinitis

OBJECTIVE

Examine outcomes of septoplasty with turbinate reductions in patients with allergic rhinitis as compared to patients without allergic rhinitis using validated outcome and quality-of-life (QOL) instruments.

STUDY DESIGN

Prospective observational cohort study.

SETTING

Single surgeon, university hospital.

SUBJECTS AND METHODS

Consecutive study-eligible patients with a symptomatic nasal septal deviation, with (n = 30) or without (n = 30) documented allergic rhinitis, were enrolled from March 2014 to February 2017. All patients subsequently underwent nasal septoplasty and inferior turbinate reductions. Outcomes were studied using the Nasal Obstruction Symptom Evaluation (NOSE) scale, mini-Rhinoconjunctivitis Quality of Life Questionnaire (mini-RQLQ), and Ease-of-Breathing (EOB) Likert scores completed preoperatively and, together with a patient satisfaction Likert, at 3 and 6 months postoperatively.

RESULTS

NOSE scores, EOB scores, and mini-RQLQ scores improved significantly in both groups at 3 and 6 months postoperatively. Results were sustained from 3 to 6 months. Although mini-RQLQ scores in allergic patients were higher at all intervals, the magnitude of change in scores in both groups was comparable.

CONCLUSION

Although patients with allergic rhinitis report greater allergy-related QOL impairment (mini-RQLQ) on a day-to-day basis than nonallergic patients, this does not appear to attenuate the benefit they might experience from septoplasty and turbinate reductions when indicated for nasal obstruction. Furthermore, the symptomatic relief of their structural nasal obstruction appears to significantly improve their overall allergy-related quality of life. If appropriate expectations are set pre-operatively, allergic rhinitis is neither a contraindication nor a deterrent to septoplasty and turbinate reductions and these patients can reasonably expect a high degree of satisfaction post-operatively.

Improvement in nasal obstruction and quality of life after septorhinoplasty and turbinate surgery

OBJECTIVES

To evaluate the long-term impact of functional septorhinoplasty (SRP) with and without inferior turbinate reduction (ITR) on disease-specific symptom severity and general health-related quality of life (QOL).

STUDY DESIGN

Prospective cohort study at a tertiary referral center.

METHODS

Patients undergoing functional SRP with and without ITR were administered the Nasal Obstruction Symptom Evaluation (NOSE) scale to assess severity of nasal obstruction and the EuroQol-5 Dimension Questionnaire Visual Analog Scale (EQ-5D VAS) to assess general health-related QOL preoperatively and at 2, 4, 6, 12, 24, and 36 months postoperatively. Patient demographics, surgical technique, symptom severity, and QOL outcomes were analyzed.

RESULTS

A total of 567 patients were included, with 391 patients undergoing functional SRP alone (54.0% female; mean age 36.0 years [standard deviation (SD):16.2]) and 176 patients undergoing functional SRP with ITR (50.0% female; mean age 35.6 years [SD:13.6]). There was a significant decrease in NOSE and increase in EQ-5D VAS scores in both groups through at least 24 months postoperatively. Change in NOSE scores was negatively correlated with change in EQ-5D VAS (r = -0.38, P < 0.01). Compared to patients undergoing SRP, patients also undergoing ITR had a statistically but nonclinically significant improvement in NOSE, with similar trends for EQ-5D VAS that were not significant.

CONCLUSION

SRP results in a sustained, long-term improvement in nasal obstruction based on disease-specific and general health-related QOL measures, with incremental improvement in outcomes with addition of ITR. This study provides the foundation for defining health outcomes and the health utility value of surgical interventions that address nasal obstruction.

LEVEL OF EVIDENCE

2c Laryngoscope, 129:1554-1560, 2019.

Impact of Middle versus Inferior Total Turbinectomy on Nasal Aerodynamics

OBJECTIVES

This computational study aims to (1) use virtual surgery to theoretically investigate the maximum possible change in nasal aerodynamics after turbinate surgery, (2) quantify the relative contributions of the middle and inferior turbinates to nasal resistance and air conditioning, and (3) quantify to what extent total turbinectomy impairs the nasal air-conditioning capacity.

STUDY DESIGN

Virtual surgery and computational fluid dynamics.

SETTING

Academic tertiary medical center.

SUBJECTS AND METHODS

Ten patients with inferior turbinate hypertrophy were studied. Three-dimensional models of their nasal anatomies were built according to presurgery computed tomography scans. Virtual surgery was applied to create models representing either total inferior turbinectomy (TIT) or total middle turbinectomy (TMT). Airflow, heat transfer, and humidity transport were simulated at a steady-state inhalation rate of 15 L/min. The surface area stimulated by mucosal cooling was defined as the area where heat fluxes exceed 50 W/m(2).

RESULTS

In both virtual total turbinectomy models, nasal resistance decreased and airflow increased. However, the surface area where heat fluxes exceed 50 W/m(2) either decreased (TIT) or did not change significantly (TMT), suggesting that total turbinectomy may reduce the stimulation of cold receptors by inspired air. Nasal heating and humidification efficiencies decreased significantly after both TIT and TMT. All changes were greater in the TIT models than in the TMT models.

CONCLUSION

TIT yields greater increases in nasal airflow but also impairs the nasal air-conditioning capacity to a greater extent than TMT. Radical resection of the turbinates may decrease the surface area stimulated by mucosal cooling.

Radiofrequency Coblation Versus Intramural Bipolar Cautery for the Treatment of Inferior Turbinate Hypertrophy

OBJECTIVE

Compare intramural bipolar electrocautery and radiofrequency coblation in the treatment of inferior turbinate hypertrophy with regards to objective and subjective improvement in nasal obstruction, rate and type of complications, experience during the procedure, and rate of recovery.

STUDY DESIGN

Prospective, single-blinded study.

SETTING

Single tertiary medical center from 2008 to 2010.

SUBJECTS AND METHODS

Forty-one adult patients with inferior turbinate hypertrophy refractory to medical management were treated with radiofrequency coblation in one nostril and intramural bipolar cautery in the other. Subjective and objective data, including use of a Visual Analog Scale (VAS) for subjective outcomes, acoustic rhinometry, and nasal endoscopy, were then obtained from each patient comparing the 2 techniques.

RESULTS

Radiofrequency coblation was significantly less painful than intramural bipolar cautery during the procedure (P = .03) and during the early postoperative period (P < .02) and produced less crusting at 3 weeks (P = .009). Both interventions were similar in subjective and objective improvements in nasal obstruction as measured by acoustic rhinometry and subjective VAS outcomes.

CONCLUSION

Radiofrequency coblation seems to offer an equivalent alternative to bipolar electrocautery for the treatment of inferior turbinate hypertrophy with less discomfort during the procedure and early post-operative period.