OBJECTIVE: To investigate the subjective effect of office-based blue laser therapy for inferior turbinate hypertrophy in patients with nasal obstruction.
METHODS: Patients with nasal obstruction who underwent office-based blue laser for the inferior turbinate hypertrophy between October 2022 and December 2023 were included in the study. The two outcome measures used to gauge the improvement in nasal obstruction and success of surgery were the Nasal Obstruction Symptom Evaluation (NOSE) scale and the Visual Analogue Scale (VAS). Patient\'s level of comfort during the procedure was also rated using a 10-point VAS scale.
RESULTS: A total of 14 patients were included in this study. The mean age of the study group was 41.47 ± 18.52 and the F/M ratio was 4.67. All patients reported significant improvement in nasal breathing. The mean NOSE score decreased significantly from 13.07 ± 3.89 pre-operatively to 2.64 ± 2.43 post-operatively (p = 0.002). Similarly, the mean VAS score decreased from 7.43 ± 0.85 to 2.0 ± 1.57 (p = 0.002) following surgery. The procedure was well-tolerated by all participants and the mean total score ranged from 6 to 9 with an average of 7.59 ± 1.34.
CONCLUSIONS: Office-based blue laser therapy for inferior turbinate hypertrophy may be an effective treatment modality for nasal obstruction from the patient\'s perspective. Although the procedures were tolerated well with no complications noted, these results should be cautiously interpreted until studies using objective measures are conducted.

OBJECTIVE: To compare and measure post-operative outcomes among various surgical techniques for reducing inferior turbinate hypertrophy (ITH), and to identify the factors associated with the clinical outcomes of turbinoplasty in patients with this condition.
METHODS: A cross-sectional study was carried out from January 2021 to December 2022 at the Otorhinolaryngology Department of King Abdulaziz Medical City in Riyadh, Saudi Arabia. A total of 301 adult patients with ITH were included and were divided into different groups. Postoperative follow-up assessments were completed after one week, one month, and 6 months to evaluate outcomes and complications associated with each surgical technique; descriptive analysis, cross-tabulation, and exact logistic regression were utilized as data analysis methods.
RESULTS: Most patients in both groups experienced partial or complete improvement after surgery, with 92% showing positive outcomes. Common clinical signs included deviated nasal septum deviation and external nasal deformity, while nasal obstruction was most frequently reported as the primary symptom. Post-surgery bleeding occurred in 3.7% of cases; no adhesions were noted. Microdebrider, medial flap, out-fracture, and submucosal diathermy techniques all demonstrated significantly higher improvement rates than others.
CONCLUSIONS: The identified techniques with higher improvement rates offer evidence-based guidance for selecting optimal surgical approaches, while the study\'s limitations warrant further prospective research to validate these findings. Ultimately, it contributes valuable knowledge to the field of otorhinolaryngology, aiming to enhance patient outcomes and improve the management of ITH worldwide.

Background Nasal obstruction due to inferior turbinate hypertrophy is a common medical complaint among ENT clinic patients, which can significantly affect the patient\'s quality of life, and some are compelled to use topical intranasal decongestants. Conservative management is the first line of treatment; however, surgical reduction of the inferior turbinate becomes necessary if the symptoms persist after three months of treatment. The optimal surgical technique is controversial. High-intensity focused ultrasound (HIFU) is a minimally invasive surgical option that targets tissue volume precisely and minimally impacts surrounding tissue. This study aimed to assess the effectiveness and safety of HIFU in treating patients suffering from nasal obstruction due to inferior turbinate hypertrophy. Methods This prospective study was conducted from February to December 2016. The study lasted over six months. Patients with a history of allergic and non-allergic rhinitis participated in this study. It included 43 patients who had been experiencing chronic nasal obstruction due to bilateral inferior turbinate hypertrophy and had not shown improvement after three months of medical treatment. The patients underwent Ultrasound Volumetric Tissue Reduction (UVTR) surgery using the D & A Ultrasurg device (Diamant Medical Equipment Ltd., Amman, Jordan) under local anesthesia. The effectiveness, safety, and tolerance of HIFU were assessed subjectively for six months using a well-designed questionnaire utilizing a visual analog scale (VAS) and nasal endoscopy after the surgery. Results The study included 43 patients, 22 male and 21 female, aged 13 to 65 years. The study found that 40 (93%) patients showed significant improvement in nasal obstruction within a month of the surgery. However, three (7%) patients continued to experience persistent nasal obstruction even after six months of follow-up. The procedure was well-tolerated, with low rates of complications after surgery and reasonable pain control. During the surgery, 20 (46.5%) patients reported mild pain described as a pressure-like sensation, and 10 out of 43 patients (23%) required paracetamol after the procedure. Four patients (9.3%) had mild bleeding, which was treated with an ultrasound nasal probe without nasal packing. All patients experienced crusting of the nasal cavity during the first week, but no crustation was observed after the first month. There were no reported cases of synechia among the patients. Conclusion This study confirms that HIFU treatment is a reliable and effective treatment for improving short-term nasal obstruction caused by inferior turbinate hypertrophy. The procedure is easily applied and well-tolerated in outpatient clinics.

BACKGROUND: Nasal congestion could affect the absorption of an epinephrine nasal spray (ENS).
OBJECTIVE: To compare the pharmacokinetics of 13.2 mg ENS with nasal congestion vs without congestion and vs intramuscular (IM) treatments.
METHODS: This phase I, open-label, 4-period randomized crossover study enrolled 51 healthy adults with seasonal allergies into cohorts that received a single dose of 13.2 mg ENS (NDS1C; Bryn Pharma, Lebanon, New Jersey) administered as 2 consecutive sprays in either opposite nostrils (cohort 1) or the same nostril (cohort 2). Both cohorts received 13.2 mg ENS with and without nasal allergen challenge (NAC), 0.3 mg IM epinephrine by autoinjector, and 0.5 mg IM epinephrine by manual syringe (MS).
RESULTS: The ENS after NAC resulted in higher extent and peak exposures and more rapid time to maximum plasma concentration vs ENS without NAC and IM treatments. In cohort 1, the maximum observed baseline-adjusted epinephrine plasma concentration (pg/mL) of ENS with NAC, IM autoinjector, IM MS, or ENS without NAC was 458.0, 279.0, 364.2, and 270.1, respectively, and in cohort 2 was 436.3, 228.2, 322.3, and 250.8, respectively. The maximum observed baseline-adjusted epinephrine plasma concentration geometric mean ratio (90% CI) for ENS with NAC vs without NAC in cohort 1 was 170% (123%-234%), and in cohort 2 was 174% (115%-263%). In cohort 1, the time to maximum plasma concentration was 15, 21, 45, and 25 minutes, respectively, and in cohort 2 was 18, 20, 45, and 20 minutes, respectively (P < .01 for ENS with NAC vs IM MS). The postdose mean heart rate and blood pressure remained stable and relatively similar to predose values regardless of plasma epinephrine concentration. Mild nausea and headache were the most common adverse events with ENS.
CONCLUSIONS: The 13.2 mg ENS with congestion exhibited enhanced absorption vs IM treatments and ENS without congestion and seemed to be well tolerated. There was no clinically impactful relationship between pharmacodynamic effects and plasma epinephrine concentration.

OBJECTIVE: Nasal valve insufficiency is known to have a negative impact on both nasal patency and quality of life. The titanium butterfly implant is a surgical treatment proven to have a positive effect on these aspects up to 6 months postoperative. This study aimed to determine the long-term effects of the titanium butterfly implant on nasal obstruction symptoms and quality of life in adult patients with nasal valve insufficiency up to 5 years after procedure.
METHODS: A prospective single cohort study was performed including 29 patients that underwent the titanium butterfly implant in one tertiary medical center. Data was obtained before and at least 5 years after surgery using three questionnaires: the Nasal Obstruction and Septoplasty Effectiveness questionnaire, the Sino-Nasal Outcome Test 22 and the Glasgow Benefit Inventory questionnaire.
RESULTS: A significant decrease in total NOSE score was seen compared to baseline measurements. The SNOT-22 scores also showed a significant decrease, whereas the GBI scores showed no significant changes at the late follow-up.
CONCLUSIONS: Seven years after placement the titanium butterfly implant still has a statistically significant improvement on otorhinologic-related quality of life compared to preoperative measurements.

Decongestion reduces blood flow in the nasal turbinates, enlarging the airway lumen. Although the enlarged airspace reduces the trans-nasal inspiratory pressure drop, symptoms of nasal obstruction may relate to nasal cavity air-conditioning. Thus, it is necessary to quantify the efficiency of nasal cavity conditioning of the inhaled air. This study quantifies both overall and regional nasal air-conditioning in a cohort of 10 healthy subjects using computational fluid dynamics simulations before and after nasal decongestion. The 3D virtual geometry model was segmented from magnetic resonance images (MRI). Each subject was under two MRI acquisitions before and after the decongestion condition. The effects of decongestion on nasal cavity air conditioning efficiency were modelled at two inspiratory flowrates: 15 and 30 L min-1 to represent restful and light exercise conditions. Results show inhaled air was both heated and humidified up to 90% of alveolar conditions at the posterior septum. The air-conditioning efficiency of the nasal cavity remained nearly constant between nostril and posterior septum but dropped significantly after posterior septum. In summary, nasal cavity decongestion not only reduces inhaled air added heat by 23% and added moisture content by 19%, but also reduces the air-conditioning efficiency by 35% on average.

Objective: To investigate the correlations between subjective nasal patency, nasal valve area size and aerodynamic parameters in normal nasal cavity by means of numerical simulation, and to explore the effect of nasal valve on nasal subjective sensation and nasal airflow regulation. Methods: A total of 52 healthy participants (31 males and 21 females) with the average age of 37.8 years, were recruited from the outpatient Department of Otorhinolaryngology Head and Neck Surgery, the Ninth People\'s Hospital Affiliated to the Medical College of Shanghai Jiao Tong University between January and August 2023. Visual Analog Scale (VAS) scores for unilateral nasal subjective sensation were obtained from all participants. Additionally, the aerodynamic characteristics of inspiratory airflow were simulated. A correlation matrix analysis was conducted to identify the correlation strength between these subjective and objective parameters. Results: VAS scores showed negative correlations with unilateral nasal valve cross-sectional area (r=-0.85, P<0.01) and unilateral intranasal airflow (r=-0.57, P<0.01), and was a positive correlation with unilateral nasal resistance (NR) at the front-end of inferior turbinate (r=0.61, P<0.01). The average cross-sectional area of unilateral nasal valve was (0.85±0.35) cm2. The cross-sectional area of unilateral nasal valve was negatively correlated with unilateral NR (r=-0.50, P<0.01), and positively correlated with unilateral nasal airflow (r=0.61, P<0.01). The NR at the nasal valve area accounted for (40.41±23.54)% of the total unilateral NR. Nearly half of the unilateral NR [(46.74±21.38)%] and air warming [(49.96±10.02)%] occurring before the front end of inferior turbinate were achieved. Conclusions: The nasal valve area plays a crucial role in influencing nasal NR, unilateral nasal airflow, and changes in nasal airflow temperature. Moreover, it is associated with subjective perception of nasal patency.
目的： 通过数值模拟研究正常鼻腔中鼻腔主观通畅感、鼻瓣区大小和气流动力学参数之间的相关关系，探讨鼻瓣区对鼻主观通畅感和鼻腔气流的影响作用。 方法： 2023年1—8月于上海交通大学医学院附属第九人民医院耳鼻咽喉头颈外科门诊选取52名健康受试者，其中男性31名，女性21名，平均年龄37.8岁。对受试者进行鼻主观通畅感视觉模拟量表（Visual Analog Scale，VAS）评分（双侧分别评分），运用数值模拟分析计算静息吸气状态下气流的动力学参数，通过统计学相关性矩阵分析这些主观和客观参数之间的相关程度。 结果： VAS评分与单侧鼻瓣区截面积（r=-0.85，P<0.01）和单侧鼻内气流（r=-0.57，P<0.01）呈负相关，与单侧下鼻甲前端鼻阻力（nasal resistance，NR）呈正相关（r=0.61，P<0.01）。单侧鼻瓣区横截面积为（0.85±0.35）cm2（x¯±s，后同），与单侧鼻腔NR呈中等程度负相关（r=-0.50，P<0.01），与单侧鼻气流量呈正相关（r=0.61，P<0.01）。鼻瓣区NR占全部单侧鼻腔NR的（40.41±23.54）%，近一半的单侧NR［（46.74±21.38）%］和鼻腔加温效率［（49.96±10.02）%］存在于下鼻甲前端之前。 结论： 鼻瓣区可影响鼻腔NR、单侧鼻内气流量和鼻腔气流温度变化，并与鼻腔主观通畅感存在关联。.

OBJECTIVE: Empty nose syndrome (ENS) is an underdiagnosed but burdensome clinical condition. Studies that have addressed the impact of remnant inferior turbinate volume (ITV) on ENS are scarce. We aimed to evaluate the impact of ITV and phenotyping on the severity and presentation of ENS.
METHODS: All the enrolled patients underwent the following subjective assessments: the ENS 6-Item Questionnaire (ENS6Q), Sino-Nasal Outcome Test-25 (SNOT-25), Beck Depression Inventory-II (BDI-II) and Beck Anxiety Inventory (BAI). The ITV was obtained from finely cut (1-mm-thick slices) sino-nasal computed tomography scan images and analyzed using ImageJ. The correlation between ITV, subjective measurements, and morphology of inferior turbinates was evaluated. ENS was categorized as torpedo type (balanced tissue volume) or pistol type (posterior dominance) based on the morphology.
RESULTS: Overall, 54 patients met the inclusion criteria. The ITV was positively correlated with the ENS6Q score and domain of ENS symptoms in SNOT-25. Neither BDI-II nor BAI scores had a significant correlation with ITV. Based on their morphological classification, the torpedo type exhibited diverse manifestations in the SNOT-25 analysis in response to changes in ITV, while the pistol type demonstrated an elevated rhinologic symptom burden and ENS-specific symptoms as their ITV increased. Nasal resistance did not correlate with the ITV in either type of ENS.
CONCLUSIONS: Symptoms were paradoxically worse in ENS patients with greater remnant ITV, and distinct morphological phenotypes in the nasal cavities may result in different presentations. Further investigation into the correlation between remnant inferior turbinates and nerve function is warranted.
METHODS: 3 Laryngoscope, 134:3060-3066, 2024.

OBJECTIVE: Mucosal decongestion with nasal sprays is a common treatment for nasal airway obstruction. However, the impact of mucosal decongestion on nasal aerodynamics and the physiological mechanism of nasal airflow sensation are incompletely understood. The objective of this study is to compare nasal airflow patterns in nasal airway obstruction (NAO) patients with and without mucosal decongestion and nondecongested healthy subjects.
METHODS: Cross-sectional study of a convenience sample.
METHODS: Academic tertiary medical center.
METHODS: Forty-five subjects were studied (15 nondecongested healthy subjects, 15 nondecongested NAO patients, and 15 decongested NAO patients). Three-dimensional models of the nasal anatomy were created from computed tomography scans. Steady-state simulations of airflow and heat transfer were conducted at 15 L/min inhalation rate using computational fluid dynamics.
RESULTS: In the narrow side of the nose, unilateral nasal resistance was similar in decongested NAO patients and nondecongested healthy subjects, but substantially higher in nondecongested NAO patients. The vertical airflow distribution within the nasal cavity (inferior vs middle vs superior) was also similar in decongested NAO patients and nondecongested healthy subjects, but nondecongested NAO patients had substantially less middle airflow. Mucosal cooling, quantified by the surface area where heat flux exceeds 50 W/m2, was significantly higher in decongested NAO patients than in nondecongested NAO patients.
CONCLUSIONS: This pilot study suggests that mucosal decongestion improves objective measures of nasal airflow, which is consistent with improved subjective sensation of nasal patency after decongestion.

OBJECTIVE: This study aimed to evaluate quality-of-life and satisfaction outcomes in patients undergoing the MES using the Portuguese version of the Nasal Obstruction Symptom Evaluation (NOSE-p) and Rhinoplasty Outcome Evaluation (ROE), and also to evaluate the frequency of possible complications of this technique.
METHODS: We conducted a single-center prospective study with patients who had the indication for MES, from May 2016 to September 2020 at the Facial Plastic Surgery Clinic of Otolaryngology Department of the Hospital de Clinicas de Porto Alegre. The primary outcome was the relative postoperative change in NOSE-p. Secondary outcome was the variation in ROE, a validated quality-of-life questionnaire for rhinoplasty patients.
RESULTS: Of the 31 patients submitted to extracorporeal septorhinoplasty who were evaluated, twenty-seven patients were included. Preoperative and postoperative NOSE-p scale scores were 65.2 ± 29.9 and 23.5 ± 26.7, respectively (mean differences of 42.04; [95% CI 27.35-56.73]; p <  0.0001). Pre and postoperative ROE scores were 38.3 ± 24.3 vs. 67.29 ± 29.7, respectively (mean differences of -29.02; [95% CI -40.5 to -17.5]; p =  0.0001). Residual septal deviation was verified in 2 patients (7.4%).
CONCLUSIONS: Most of the patients submitted to modified extracorporeal septoplasty had a significant improvement in quality of life scores of nasal obstruction, with good aesthetical outcomes and low indices of postoperative complications.
METHODS: Level 3.