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Dholakia SS, Grimm D, Daum R, Bravo DT, Salvi N, Zarabanda D, Overdevest JB, Thamboo A, Nakayama T, Nayak JV. The Serpentine Sign: A Reliable Endoscopic and Radiographic Finding in Empty Nose Syndrome. Laryngoscope 2024; 134:1089-1095. [PMID: 37702458 DOI: 10.1002/lary.30938] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Revised: 07/06/2023] [Accepted: 07/19/2023] [Indexed: 09/14/2023]
Abstract
OBJECTIVE Empty nose syndrome (ENS) is a relatively uncommon disease that greatly impacts the quality of life and presents diagnostic challenges. We sought to identify objective clinical findings unique to patients with ENS, and in doing so identified compensatory mucosal hypertrophy in an alternating, undulating swelling on endoscopy and coronal computerized tomography (CT) that we have termed the "Serpentine Sign." Here, we investigated whether this radiographic finding is a reliable manifestation in ENS patients. METHODS Retrospective review was undertaken to identify ENS patients with past turbinoplasty, an ENS6Q score of at least 11/30, and symptomatic improvement with the cotton placement test. Control patients without complaints of ENS symptoms (ENS6Q < 11) were identified for comparison. ENS and control patients had coronal CT imaging available to evaluate for the Serpentine Sign, as well as ENS6Q scores, and histologic analysis of nasal tissue. RESULTS 34 ENS and 74 control patients were evaluated for the presence of the Serpentine Sign. Of the 34 patients with ENS, 18 exhibited this radiographic finding on CT imaging (52.9%) compared to 0 of the 74 control patients (p < 0.0001). Further analysis demonstrated that ENS patients with the Serpentine Sign had lower median scores on ENS6Q than ENS patients without (17.5 vs. 22, p = 0.033). Histology revealed disorganized subepithelium rich in seromucinous glands similar to the nasal septum swell body. CONCLUSION The "Serpentine Sign" is a unique presentation of hypertrophic change to the nasal septum soft tissue that is specific to ENS patients and may serve as a reliable radiographic and endoscopic finding in diagnosis. LEVEL OF EVIDENCE 4 Laryngoscope, 134:1089-1095, 2024.
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Affiliation(s)
- Sachi S Dholakia
- Division of Rhinology, Department of Otolaryngology - Head and Neck Surgery, Stanford University School of Medicine, Palo Alto, California, USA
| | - David Grimm
- Division of Rhinology, Department of Otolaryngology - Head and Neck Surgery, Stanford University School of Medicine, Palo Alto, California, USA
| | - Rachel Daum
- Division of Rhinology, Department of Otolaryngology - Head and Neck Surgery, Stanford University School of Medicine, Palo Alto, California, USA
| | - Dawn T Bravo
- Division of Rhinology, Department of Otolaryngology - Head and Neck Surgery, Stanford University School of Medicine, Palo Alto, California, USA
| | - Nicole Salvi
- Division of Rhinology, Department of Otolaryngology - Head and Neck Surgery, Stanford University School of Medicine, Palo Alto, California, USA
| | - David Zarabanda
- Division of Rhinology, Department of Otolaryngology - Head and Neck Surgery, Stanford University School of Medicine, Palo Alto, California, USA
| | - Jonathan B Overdevest
- Division of Rhinology, Department of Otolaryngology - Head and Neck Surgery, Stanford University School of Medicine, Palo Alto, California, USA
| | - Andrew Thamboo
- Department of Otolaryngology - Head and Neck Surgery, University of British Columbia, Vancouver, British Columbia, Canada
| | - Tsuguhisa Nakayama
- Division of Rhinology, Department of Otolaryngology - Head and Neck Surgery, Stanford University School of Medicine, Palo Alto, California, USA
- Department of Otolaryngology - Head and Neck Surgery, VA Palo Alto Health Care System, Palo Alto, California, USA
| | - Jayakar V Nayak
- Division of Rhinology, Department of Otolaryngology - Head and Neck Surgery, Stanford University School of Medicine, Palo Alto, California, USA
- Department of Otolaryngology - Head and Neck Surgery, VA Palo Alto Health Care System, Palo Alto, California, USA
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Fu CH, Chen HC, Huang CC, Chang PH, Lee TJ. Serum High-Sensitivity C-Reactive Protein Is Associated with Postoperative Psychiatric Status in Patients with Empty Nose Syndrome. Diagnostics (Basel) 2021; 11:diagnostics11122388. [PMID: 34943627 PMCID: PMC8700485 DOI: 10.3390/diagnostics11122388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2021] [Revised: 12/05/2021] [Accepted: 12/16/2021] [Indexed: 11/30/2022] Open
Abstract
Many patients diagnosed with empty nose syndrome (ENS) later develop mental illness. The literature addressing biomarkers associated with postoperative psychiatric status is limited. This study aimed to assess the association between high-sensitivity C-reactive protein (hs-CRP) and psychiatric status after surgery in ENS. We recruited patients with ENS undergoing endonasal submucosal implantation. Their pre- and postoperative psychiatric status was evaluated using the Beck depression inventory-II (BDI-II) and the Beck Anxiety Inventory (BAI). Serum hs-CRP was analyzed one day before and one year after surgery. Of the 43 patients enrolled, all subjective measurements had improved (symptom scores decreased) significantly by the third month postoperatively and remained plateaued till 12 months. Those with preoperative hs-CRP levels > 2.02 mg/L were likely to remain depressive 1 year postoperatively. The regression model showed that a preoperative hs-CRP level > 2.02 mg/L was significantly correlated with postoperative depression in patients with ENS (odds ratio, 19.9). Hs-CRP level seems to be a feasible predictor of surgical outcome regarding improved depression in patients with ENS. Patients with higher preoperative hs-CRP levels should be monitored closely after surgery.
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Affiliation(s)
- Chia-Hsiang Fu
- Department of Otolaryngology—Head and Neck Surgery, Linkou Chang Gung Memorial Hospital, Taoyuan 333604, Taiwan; (C.-H.F.); (H.-C.C.); (C.-C.H.); (P.-H.C.)
- Graduate Institute of Clinical Medical Sciences, College of Medicine, Chang Gung University, Taoyuan 333604, Taiwan
| | - Hung-Chin Chen
- Department of Otolaryngology—Head and Neck Surgery, Linkou Chang Gung Memorial Hospital, Taoyuan 333604, Taiwan; (C.-H.F.); (H.-C.C.); (C.-C.H.); (P.-H.C.)
| | - Chi-Che Huang
- Department of Otolaryngology—Head and Neck Surgery, Linkou Chang Gung Memorial Hospital, Taoyuan 333604, Taiwan; (C.-H.F.); (H.-C.C.); (C.-C.H.); (P.-H.C.)
- Graduate Institute of Clinical Medical Sciences, College of Medicine, Chang Gung University, Taoyuan 333604, Taiwan
| | - Po-Hung Chang
- Department of Otolaryngology—Head and Neck Surgery, Linkou Chang Gung Memorial Hospital, Taoyuan 333604, Taiwan; (C.-H.F.); (H.-C.C.); (C.-C.H.); (P.-H.C.)
- Graduate Institute of Clinical Medical Sciences, College of Medicine, Chang Gung University, Taoyuan 333604, Taiwan
| | - Ta-Jen Lee
- Department of Otolaryngology—Head and Neck Surgery, Linkou Chang Gung Memorial Hospital, Taoyuan 333604, Taiwan; (C.-H.F.); (H.-C.C.); (C.-C.H.); (P.-H.C.)
- Department of Otolaryngology—Head and Neck Surgery, Xiamen Chang Gung Memorial Hospital, Xiamen 361000, China
- Correspondence:
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Kanjanawasee D, Campbell RG, Rimmer J, Alvarado R, Kanjanaumporn J, Snidvongs K, Kalish L, Harvey RJ, Sacks R. Empty Nose Syndrome Pathophysiology: A Systematic Review. Otolaryngol Head Neck Surg 2021; 167:434-451. [PMID: 34665687 DOI: 10.1177/01945998211052919] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
OBJECTIVE The pathophysiology of empty nose syndrome (ENS) remains unclear despite significant research. The pathophysiologic mechanism of ENS was systematically reviewed. DATA SOURCES MEDLINE and Embase. REVIEW METHODS Data were systematically reviewed for studies that provided original data on pathophysiology. RESULTS A total of 2476 studies were screened, and 19 met the inclusion criteria: 13 case-control and 6 cross-sectional. Nine pathophysiologic themes were identified.• Demographics: ENS symptoms had no relationship with climatic factors.• Symptomatology: ENS patients demonstrated high symptom severity.• Mental health: Anxiety and depression including hyperventilation were reported in >50% of ENS patients and correlated with ENS symptom severity.• Anatomic features: Structural changes in response to turbinate surgery were similar between ENS and non-ENS patients.• Airflow analysis: Airflow parameters were similar between ENS and non-ENS patients after turbinate surgery. On computational fluid dynamic analysis, differences were found on multiple outcomes.• Diagnostic testing: The menthol detection test was impaired in ENS, and cotton placement in the airway improved ENS symptoms.• Cognitive function: Functional magnetic resonance imaging showed activation in emotional processing area during breathing.• Olfactory function: Subjective impairment was reported in ENS, but quantitative measures were similar to non-ENS patients.• Mucosal physiology/innate immunity: Turbinate histopathology in ENS showed a tissue-remodeling pattern. Nasal nitric oxide level was lower in ENS patients. CONCLUSION There is evidence of high comorbid mental health disorders in ENS patients. An abnormal trigeminal-thermoreceptor response may be present in some patients. The influence of altered airflow and the evidence of surgery as the cause for ENS are unclear.
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Affiliation(s)
- Dichapong Kanjanawasee
- Department of Otolaryngology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand.,Faculty of Medicine, Health and Human Sciences, Macquarie University, Sydney, Australia.,Department of Parasitology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Raewyn G Campbell
- Faculty of Medicine, Health and Human Sciences, Macquarie University, Sydney, Australia.,Department of Otorhinolaryngology-Head and Neck Surgery, Royal Prince Alfred Hospital, Sydney, Australia.,Rhinology and Skull Base Research Group, Applied Medical Research Centre, University of New South Wales, Sydney, Australia
| | - Janet Rimmer
- Rhinology and Skull Base Research Group, Applied Medical Research Centre, University of New South Wales, Sydney, Australia.,Woolcock Institute, University of Sydney, Sydney, Australia.,Faculty of Medicine, Notre Dame University, Sydney, Australia
| | - Raquel Alvarado
- Rhinology and Skull Base Research Group, Applied Medical Research Centre, University of New South Wales, Sydney, Australia
| | - Jesada Kanjanaumporn
- Department of Otolaryngology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Kornkiat Snidvongs
- Department of Otolaryngology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Larry Kalish
- Rhinology and Skull Base Research Group, Applied Medical Research Centre, University of New South Wales, Sydney, Australia.,Department of Otolaryngology-Head and Neck Surgery, Concord General Hospital, University of Sydney, Australia.,Faculty of Medicine, University of Sydney, Sydney, Australia
| | - Richard J Harvey
- Faculty of Medicine, Health and Human Sciences, Macquarie University, Sydney, Australia.,Rhinology and Skull Base Research Group, Applied Medical Research Centre, University of New South Wales, Sydney, Australia
| | - Raymond Sacks
- Faculty of Medicine, Health and Human Sciences, Macquarie University, Sydney, Australia.,Department of Otolaryngology-Head and Neck Surgery, Concord General Hospital, University of Sydney, Australia
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Gordiienko IM, Gubar OS, Sulik R, Kunakh T, Zlatskiy I, Zlatska A. Empty nose syndrome pathogenesis and cell-based biotechnology products as a new option for treatment. World J Stem Cells 2021; 13:1293-1306. [PMID: 34630863 PMCID: PMC8474723 DOI: 10.4252/wjsc.v13.i9.1293] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Revised: 04/29/2021] [Accepted: 08/13/2021] [Indexed: 02/06/2023] Open
Abstract
Empty nose syndrome (ENS) is a rare complication that develops after partial or complete turbinectomy. The main feature of ENS is paradoxical nasal obstruction feeling despite objectively wide nasal airway. ENS pathogenesis is multifactorial and includes changes in laminar physiological airflow, disruption of mucosa functions and deficient neural sensation. This leads to the development of ENS symptomatology such as dyspnea, nasal dryness, nasal burning, nasal obstruction, feeling of suffocation and even comorbid psychiatric disorders that significantly impairs life quality. Specific effective treatment of ENS does not exist up to date. In this review we outline existing biomaterial for surgical reconstitution of nasal anatomy and discuss the perspective of stem cell-based technologies in ENS management. The main focus is directed to justification of rationality application of adult mesenchymal stem cells (MSCs) from different tissues origin and neural crest-derived stem cells (NCSCs) based on their intrinsic biological properties. MSCs transplantation may stimulate mucosa tissue regeneration via trophic factors secretion, direct transdifferentiation into epithelial cells and pronounced immunosuppressive effect. From the other hand, NCSCs based on their high neuroprotective properties may reconstitute nerve structure and functioning leading to normal sensation in ENS patients. We postulate that application of cell-based and tissue-engineered products can help to significantly improve ENS symptomatology only as complex approach aimed at reconstitution of nasal anatomy, recovery the nasal mucosa functionality and neural tissue sensation.
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Affiliation(s)
- Inna M Gordiienko
- Biotechnology Laboratory, Medical Company “Good Cells”, Kyiv 03115, Ukraine
- R.E. Kavetsky Institute of Experimental Pathology, Oncology and Radiobiology NAS of Ukraine, Kyiv 03022, Ukraine
| | - Olga S Gubar
- Institute of Molecular Biology and Genetics NAS of Ukraine, Kyiv 03143, Ukraine
| | - Roman Sulik
- Biotechnology Laboratory, Medical Company “Good Cells”, Kyiv 03115, Ukraine
| | - Taras Kunakh
- Biotechnology Laboratory, Medical Company “Good Cells”, Kyiv 03115, Ukraine
| | - Igor Zlatskiy
- State Institute of Genetic and Regenerative Medicine, National Academy of Medical Sciences of Ukraine, Kyiv 04114, Ukraine
| | - Alona Zlatska
- Biotechnology Laboratory, Medical Company “Good Cells”, Kyiv 03115, Ukraine
- State Institute of Genetic and Regenerative Medicine, National Academy of Medical Sciences of Ukraine, Kyiv 04114, Ukraine
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Malik J, Dholakia S, Spector BM, Yang A, Kim D, Borchard NA, Thamboo A, Zhao K, Nayak JV. Inferior meatus augmentation procedure (IMAP) normalizes nasal airflow patterns in empty nose syndrome patients via computational fluid dynamics (CFD) modeling. Int Forum Allergy Rhinol 2020; 11:902-909. [PMID: 33249769 DOI: 10.1002/alr.22720] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Revised: 09/29/2020] [Accepted: 10/08/2020] [Indexed: 01/29/2023]
Abstract
BACKGROUND Empty nose syndrome (ENS) is a controversial upper airway disorder most commonly associated with tissue loss from the inferior turbinates. The inferior meatus augmentation procedure (IMAP) has been shown to effectively reduce ENS symptoms in a durable manner, but the precise mechanisms that may govern this symptomatic improvement remain unknown. METHODS Five patients with ENS who underwent bilateral IMAP via submucosal costal cartilage implant were assessed. Pre-implant and 6 months post-implant computed tomography (CT) imaging for each ENS patient was analyzed in a blinded fashion using computational fluid dynamics (CFD) modeling to investigate intrapatient changes in airflow parameters. RESULTS Following surgery, ENS patients have significantly improved symptoms as indexed by Empty Nose Syndrome 6-Item Questionnaire (ENS6Q) scoring (pre-implant: 14.00 ± 4.06 [mean ± standard deviation]; 95% confidence interval [CI], 10.44 to 17.56; post-implant: 4.8 ± 2.77; 95% CI, 2.37 to 7.23; Cohen's d = 2.64; p = 0.02). Using CFD, a significant shift in nasal airflow patterns was observed, where airflow deviates away from the middle meatus upon hitting the implant (pre-implant: 67.13% ± 11.14%; 95% CI, 60.22% to 74.04%; post-implant: 46.18% ± 12.81%; 95% CI, 38.23% to 54.12%; d = 1.74; p < 0.05) toward the inferior meatus (pre-implant: 30.55% ± 11.29%; 95% CI, 23.55% to 37.55%; post-implant: 42.59% ± 9.60%; 95% CI, 36.63 to 48.54%; d = 1.14; p < 0.05). No significant changes were found in nasal resistance (pre-implant: 0.102 ± 0.015; 95% CI, 0.092 to 0.112 Pa*s/mL; post-implant: 0.105 ± 0.041; 95% CI, 0.081 to 0.130 Pa*s/mL). In addition, the improvement of ENS6Q scoring significantly correlated with percent reduction in aberrant airflow through the middle meatus (R2 = 0.60, p = 0.04). CONCLUSION This study supports our prior working hypothesis that disordered vectors of nasal airflow congregate in the middle meatus contribute to ENS symptoms, not nasal resistance. Moreover, these data illuminate a paradoxical, but consistent, restoration of nasal airflow to the inferior meatus following the replacement of turbinate tissue volume in the inferior meatus via IMAP surgery, potentially due to the Coandă effect.
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Affiliation(s)
- Jennifer Malik
- Department of Otolaryngology-Head and Neck Surgery, The Ohio State University, Columbus, OH
| | - Sachi Dholakia
- Department of Otolaryngology-Head and Neck Surgery, Stanford University, Stanford, CA
| | - Barak M Spector
- Department of Otolaryngology-Head and Neck Surgery, The Ohio State University, Columbus, OH
| | - Angela Yang
- Department of Otolaryngology-Head and Neck Surgery, Stanford University, Stanford, CA
| | - Dayoung Kim
- Department of Otolaryngology-Head and Neck Surgery, Stanford University, Stanford, CA
| | - Nicole A Borchard
- Department of Otolaryngology-Head and Neck Surgery, Stanford University, Stanford, CA
| | - Andrew Thamboo
- Department of Otolaryngology-Head and Neck Surgery, Stanford University, Stanford, CA
| | - Kai Zhao
- Department of Otolaryngology-Head and Neck Surgery, The Ohio State University, Columbus, OH
| | - Jayakar V Nayak
- Department of Otolaryngology-Head and Neck Surgery, Stanford University, Stanford, CA
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Malik J, Thamboo A, Dholakia S, Borchard NA, McGhee S, Li C, Zhao K, Nayak JV. The cotton test redistributes nasal airflow in patients with empty nose syndrome. Int Forum Allergy Rhinol 2020; 10:539-545. [PMID: 31951101 DOI: 10.1002/alr.22489] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Revised: 10/08/2019] [Accepted: 10/11/2019] [Indexed: 11/09/2022]
Abstract
BACKGROUND Empty nose syndrome (ENS) remains a controversial disease primarily associated with inferior turbinate tissue loss. Cotton placement into the inferior meatus often alleviates ENS symptoms within minutes, but the physiologic explanation for this phenomenon is unknown. Computational fluid dynamics (CFD) was employed to evaluate the mechanisms of altered nasal airflow conferred by cotton testing. METHODS Six ENS patients (12 sides) with pre-existing sinus computed tomography (CT) imaging were enrolled after marked symptomatic improvement (decrease in score on the Empty Nose Syndrome 6-Item Questionnaire [ENS6Q] of >7 points) with office-based cotton testing. The fashioned cotton plug was labeled in situ with iohexol contrast spray, and sinus CT was immediately obtained to detect cotton contouring in the inferior meatus. CT imaging from pre- and post-cotton placement was analyzed using comparative CFD techniques. RESULTS After cotton placement, significant symptomatic improvement and reduced ENS6Q scores (16.8 ± 4.1 to 3.1 ± 2.4; p < 0.001) were recorded. Using CFD, cotton placement produced an expected 21% increase in upper airway resistance (p < 0.05). However, a significant shift in the nasal airflow distribution was also detected, with a transition of airflow vectors away from a middle meatus jetstream (-41%; p < 0.002). CONCLUSION Objective CFD assessment confirmed that the cotton test not only increases nasal resistance, but also restores airflow distribution to the inferior meatus in symptomatic ENS patients. These results highlight the potential efficacy of cotton test in ENS patients and further bolster the utility of this tool in identifying appropriate candidates for the inferior meatus augmentation procedure.
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Affiliation(s)
- Jennifer Malik
- Department of Otolaryngology, Head & Neck Surgery, The Ohio State University, Columbus, OH
| | - Andrew Thamboo
- Department of Otolaryngology, Head & Neck Surgery, University of British Columbia, Vancouver, Canada
| | - Sachi Dholakia
- Department of Otolaryngology, Head & Neck Surgery, Stanford University, Stanford, CA
| | - Nicole A Borchard
- Department of Otolaryngology, Head & Neck Surgery, Stanford University, Stanford, CA
| | - Sam McGhee
- Department of Otolaryngology, Head & Neck Surgery, The Ohio State University, Columbus, OH
| | - Chengyu Li
- Department of Mechanical Engineering, Villanova University, Villanova, PA
| | - Kai Zhao
- Department of Otolaryngology, Head & Neck Surgery, The Ohio State University, Columbus, OH
| | - Jayakar V Nayak
- Department of Otolaryngology, Head & Neck Surgery, Stanford University, Stanford, CA
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Borchard NA, Dholakia SS, Yan CH, Zarabanda D, Thamboo A, Nayak JV. Use of intranasal submucosal fillers as a transient implant to alter upper airway aerodynamics: implications for the assessment of empty nose syndrome. Int Forum Allergy Rhinol 2019; 9:681-687. [PMID: 30715801 DOI: 10.1002/alr.22299] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2018] [Revised: 12/04/2018] [Accepted: 01/04/2019] [Indexed: 02/06/2023]
Abstract
BACKGROUND Empty nose syndrome (ENS) is a debilitating condition associated with inferior turbinate tissue loss. Surgical augmentation of the inferior meatus has been proposed to treat ENS, although efficacy data with validated, disease-specific questionnaires is limited. Instead we evaluated submucosal injection of a transient, resorbable filler into the inferior meatus to favorably alter nasal aerodynamics in ENS patients. METHODS Patients with a history of inferior turbinate reduction, diagnosed with ENS via Empty Nose Syndrome 6-Item Questionnaire (ENS6Q) and cotton testing, were enrolled and underwent submucosal injection of carboxymethylcellulose/glycerin gel (Prolaryn®) into the inferior meatuses between July 2014 and May 2018. This material likely resorbs over several months. Outcomes included comparisons of preinjection and postinjection symptoms at 1 week, 1 month, and 3 months using the ENS6Q, 22-item Sino-Nasal Outcome Test (SNOT-22), Generalized Anxiety Disorder 7-item scale (GAD-7), and Patient Health Questionnaire-9 (PHQ-9). RESULTS Fourteen patients underwent injections. Mean ENS6Q scores significantly decreased from baseline at 1 week (20.8 vs 10.5; p < 0.0001), and remained reduced but upward-trending at 1 month (13.7, p = 0.002) and 3 months (15.5, p > 0.05) following injections. Mean SNOT-22 scores significantly decreased at 1 week (p = 0.01) and 1 month (p = 0.04), mean GAD-7 at 1 month (p = 0.02) and 3 months (p = 0.02), and mean PHQ-9 at 1 week (p = 0.01) and 1 month (p = 0.004) postinjection. CONCLUSION Transient, focal airway bulking via submucosal filler injection at sites of inferior turbinate tissue loss markedly benefits ENS patients, suggesting that aberrant nasal aerodynamics from inferior turbinate tissue loss contributes to (potentially reversible) ENS symptoms.
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Affiliation(s)
- Nicole A Borchard
- Division of Rhinology, Department of Otolaryngology-Head and Neck Surgery, Stanford University School of Medicine, Palo Alto, CA
| | - Sachi S Dholakia
- Division of Rhinology, Department of Otolaryngology-Head and Neck Surgery, Stanford University School of Medicine, Palo Alto, CA
| | - Carol H Yan
- Division of Rhinology, Department of Otolaryngology-Head and Neck Surgery, Stanford University School of Medicine, Palo Alto, CA
| | - David Zarabanda
- Division of Rhinology, Department of Otolaryngology-Head and Neck Surgery, Stanford University School of Medicine, Palo Alto, CA
| | - Andrew Thamboo
- Division of Rhinology, Department of Otolaryngology-Head and Neck Surgery, Stanford University School of Medicine, Palo Alto, CA.,Department of Otolaryngology-Head and Neck Surgery, University of British Columbia, Vancouver, BC, Canada
| | - Jayakar V Nayak
- Division of Rhinology, Department of Otolaryngology-Head and Neck Surgery, Stanford University School of Medicine, Palo Alto, CA
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