scholarly journals Radiological Markers of the Olfactory Cleft: Relations to Unilateral Orthonasal and Retronasal Olfactory Function

Diagnostics ◽  
2020 ◽  
Vol 10 (11) ◽  
pp. 989
Author(s):  
David T. Liu ◽  
Ursula Schwarz-Nemec ◽  
Bertold Renner ◽  
Christian A. Mueller ◽  
Gerold Besser

The opacification of the olfactory cleft (OC) has been associated with birhinal orthonasal olfaction in patients with chronic rhinosinusitis (CRS). The aim of this study was to determine the associations between monorhinal and birhinal orthonasal, and retronasal olfaction with radiological markers of the OC in a cohort of patients with CRS. Results were analyzed in a CRS-cohort including 13 patients with nasal polyposis (CRSwNP) and 12 patients with non-eosinophilic CRS (non-eCRS). Monorhinal and birhinal orthonasal olfactory function, and OC-air volume were higher in non-eCRS compared CRSwNP. OC-opacification was also higher in CRSwNP compared to non-eCRS. In the entire CRS-cohort, those with higher OC-opacification showed significantly lower orthonasal and retronasal olfactory test results compared to those with lower OC-opacification across all three coronal planes. Similarly, higher unilateral OC-opacification was also associated with lower ipsilateral orthonasal olfactory function. Correlation analysis further revealed a positive correlation between monorhinal and birhinal orthonasal olfaction with ipsilateral and overall OC-air volume. Likewise, birhinal and monorhinal orthonasal, and retronasal olfactory test results correlated negatively with the overall and ipsilateral Lund-Mackay scores. Monorhinal and birhinal orthonasal, and retronasal olfactory function were lower in CRS patients with higher ipsilateral and overall OC-opacification compared to those with lower OC-opacification.

2021 ◽  
pp. 194589242098743
Author(s):  
Nyssa F. Farrell ◽  
Jess C. Mace ◽  
David A. Sauer ◽  
Andrew J. Thomas ◽  
Mathew Geltzeiler ◽  
...  

Background Chronic rhinosinusitis (CRS) is often differentiated by histopathologic phenotypes (eosinophilic versus neutrophilic), which may impact disease severity measures and outcomes. As such, it has been suggested that counts of cellular elements be included as part of a standard pathological report following endoscopic sinus surgery (ESS). Objectives This cross-sectional study evaluated associations of mucosal eosinophilia and neutrophilia with measures of quality-of-life (QoL) and olfactory function. Methods Patients with medically refractory CRS completed the SNOT-22 survey and Brief Smell Identification Test (BSIT) at enrollment. In addition, baseline Lund-Mackay computed tomography (CT) and Lund-Kennedy endoscopy scores were collected. Ethmoid mucosa was biopsied during ESS and reviewed using microscopy to quantify densest infiltrate of eosinophils or neutrophils per high-powered-field (HPF). Eosinophilic CRS (eCRS) and neutrophilic CRS (nCRS), both with and without nasal polyposis (NP), were compared across SNOT-22 and BSIT scores. Results 77/168 patients demonstrated mucosal eosinophilia (eCRS) while a total of 42/168 patients demonstrated mucosal neutrophilia (nCRS). After adjusting for polyp status, 35/168 had eCRSsNP, 42/168 eCRSwNP, 75/168 non-eCRSsNP, 16/168 non-eCRSwNP. Additionally, 22/161 were noted to have nCRSsNP, 20/161 nCRSwNP, 84/161 non-nCRSwNP, and 35/161 non-nCRSsNP. A small subset of patients demonstrated both eosinophilia and neutrophilia: 14 CRSwNP and 7 CRSsNP. When evaluating average Lund-Mackay Scores (LMS), significant differences existed between non-eCRSsNP and eCRSsNP (p = 0.006). However, after controlling for nasal polyps, eosinophilia did not significantly associate with differences in the Lund-Kennedy Score. Neutrophilia did not significantly associate with any changes in LMS or LKS after controlling for NP. Eosinophilic and neutrophilic histopathologic subtypes did not significantly associate with differences in baseline SNOT-22 or BSIT measures after controlling for NP. Conclusion Neither the presence of mucosal eosinophilia nor mucosal neutrophilia demonstrated significant associations with SNOT-22 quality-of-life or BSIT olfactory function scores when controlling for comorbid nasal polyposis.


2012 ◽  
Vol 2012 ◽  
pp. 1-5 ◽  
Author(s):  
María V. Sánchez-Vallecillo ◽  
María E. Fraire ◽  
Carlos Baena-Cagnani ◽  
Mario E. Zernotti

Objectives. To measure the prevalence of and identify the clinical characteristics associated with olfactory decline in patients with chronic rhinosinusitis.Methods and Materials. There is analytical, prospective, and observational study in adult patients with a diagnosis of chronic rhinosinusitis. The olfactory test used was the Connecticut Chemosensory Clinical Research Center (CCCRC).Results. They are 33 patients total. Within the group of patients aged 18 to 39, 9% had normosmia, 73% hyposmia, and 18% anosmia (P<0.001). Between 40 and 64 years old, there was no patient with normosmia, 63% hyposmia, and 37% anosmia (P<0.001). Of patients older than 65 years old, 33% showed mild hyposmia, 34% severe hyposmia, and 33% anosmia (P<0.001). 52% were females, and 48% were males.Conclusion. Nasal polyposis, asthma, septal deviation, turbinate hypertrophy, tobacco, and allergic rhinitis are predicting factors of olfactory dysfunction. Antecedents of previous endoscopic surgeries, age, and gender would not be associated with olfactory loss.


2021 ◽  
Vol 11 (16) ◽  
pp. 7279
Author(s):  
Jörn Lötsch ◽  
Constantin A. Hintschich ◽  
Petros Petridis ◽  
Jürgen Pade ◽  
Thomas Hummel

Olfactory self-assessments have been analyzed with often negative but also positive conclusions about their usefulness as a surrogate for sensory olfactory testing. Patients with nasal polyposis have been highlighted as a well-predisposed group for reliable self-assessment. In a prospective cohort of n = 156 nasal polyposis patients, olfactory threshold, odor discrimination, and odor identification were tested using the “Sniffin’ Sticks” test battery, along with self-assessments of olfactory acuity on a numerical rating scale with seven named items or on a 10-point scale with only the extremes named. Apparent highly significant correlations in the complete cohort proved to reflect the group differences in olfactory diagnoses of anosmia (n = 65), hyposmia (n = 74), and normosmia (n = 17), more than the true correlations of self-ratings with olfactory test results, which were mostly very weak. The olfactory self-ratings correlated with a quality of life score, however, only weakly. By contrast, olfactory self-ratings proved as informative in assigning the categorical olfactory diagnosis. Using an olfactory diagnostic instrument, which consists of a mapping rule of two numerical rating scales of one’s olfactory function to the olfactory functional diagnosis based on the “Sniffin’ Sticks” clinical test battery, the diagnoses of anosmia, hyposmia, or normosmia could be derived from the self-ratings at a satisfactorily balanced accuracy of about 80%. It remains to be seen whether this approach of translating self-assessments into olfactory diagnoses of anosmia, hyposmia, and normosmia can be generalized to other clinical cohorts in which olfaction plays a role.


2008 ◽  
Vol 22 (6) ◽  
pp. 598-601 ◽  
Author(s):  
Philippe Rombaux ◽  
Helene Potier ◽  
Bernard Bertrand ◽  
Thierry Duprez ◽  
Thomas Hummel

Background The aim of this study was to assess the volume of the olfactory bulb (OB) in patients with chronic rhinosinusitis (without nasal polyposis at the endoscopic evaluation) and to evaluate the correlation between this measure and the degree of sinonasal inflammation. Methods Patients with sinonasal disease (SND; n = 22) were compared with healthy controls (n = 16) using orthonasal and retronasal olfactory test results and OB volumes measurement calculated by planimetric manual contouring using standardized methods. The Lund-Mackay score (originally described for CT scan) was also used to gauge sinonasal inflammation (SND score). Results The two groups were not significantly different in terms of age or distribution of sex. Patients had significantly higher right- and left-sided SND scores than controls. There was no significant group difference between patients and controls with regard to OB volume. However, patients with an SND score ≥12 had larger OB volumes than patients with higher SND scores (p < 0.001). Even when controlling for the subjects’ age, a significant correlation was present between OB volume and SND score (r =-0.52; p = 0.001) with smaller OB volumes being associated with a higher degree of sinonasal pathology. Conclusion OB volume correlated with the SND score, which is an indicator of the degree of sinonasal inflammation. SND patients with a slight decrease or even normal olfactory function may already exhibit changes in their OB volume. This study also seems to emphasize the idea that OB volume changes are more sensitive to subtle changes in the olfactory system than results from psychophysical testing.


Author(s):  
Dae Woong Kang ◽  
Hye Kyu Min ◽  
Oh Eun Kwon ◽  
Sung Wan Kim ◽  
Jin-Young Min

Background and Objectives Although patients with chronic rhinosinusitis (CRS) present a similar degree of olfactory dysfunction, their impairments in threshold, discrimination, and identification test results may vary. We investigated factors related to each of these components using the Korean version of the Sniffin’ Sticks test II in CRS patients.<br/>Subjects and Method A total of 120 CRS patients with olfactory dysfunction were enrolled and assigned to hyposmia and anosmia groups. Correlation between the three components were examined in both groups. We also subdivided patients into higher- and lower-score groups according to the threshold, discrimination, and identification scores within the hyposmia and anosmia groups to determine associated factors among the demographic factors, CRS severity on computed tomography (CT) and endoscopic findings.<br/>Results Threshold, discrimination, and identification scores were significantly correlated in hyposmia patients. Age [odds ratio (OR), 0.94] was associated with the threshold score, and the anterior olfactory cleft opacification score (OR, 1.31) on CT was associated with identification difficulties in hyposmia patients. The posterior olfactory cleft opacification score was associated with threshold (OR, 2.76) and identification difficulties (OR, 1.68) in anosmia patients. However, we could not identify significant risk factors for discrimination in both groups.<br/>Conclusion We demonstrated that the three components of the olfactory function test for CRS are significantly correlated in patients with hyposmia. Age was associated with threshold score in hyposmia patients and CRS severity, and with discrimination scores in both hyposmia and anosmia patients. These findings will help the understanding of pathophysiology of CRSrelated olfactory dysfunction.<br/>Korean J Otorhinolaryngol-Head Neck Surg 2020;63(8):358-68


2008 ◽  
Vol 149 (37) ◽  
pp. 1737-1746 ◽  
Author(s):  
Imre Gerlinger ◽  
András Fittler ◽  
Anna Mayer ◽  
Ágnes Patzkó ◽  
Fruzsina Fónay ◽  
...  

A krónikus rhinosinusitis (KRS) a felnőttpopuláció 1–4%-át érintő, jelentős életminőség-romlást okozó idült, multifaktoriális, gyakran orrpolipképződéssel járó, etiológiáját illetően azonban pontosan nem tisztázott megbetegedés. Az elmúlt évtizedben felmerült, hogy az orrüregi nyálkahártya jellegzetes eozinofil sejtes beszűrődését okozó megbetegedésnek az orrüregi nyákban található gombák elleni fokozott – nem IgE típusú klasszikus allergiás – immunválasz a kiváltó oka. Célkitűzés: Ha igaz ez a feltételezés, akkor kézenfekvőnek tűnik, hogy az endoszkópos orrpolypectomiákat követően megfelelő ideig és koncentrációban adott amphotericin B-tartalmú orrspray kedvező hatású lehet a betegek számára, akár csökkentve a recidívák számát. Módszer: A feltételezés igazolá­sára a szerzők 33 beteg bevonásával prospektív, randomizált, placebokontrollált, kettős vak klinikai tanulmányt végeztek. A tanulmányt végül 30 beteg fejezte be. A 2005. november 1-je és 2006. október 1-je között orrpolyposissal endoszkópos műtétre került betegek egyik csoportja (A csoport, 14 beteg) egy évig 5 mg/ml koncentrációjú amphotericin B-tartalmú orrsprayt kapott, míg a placebo­csoport (B csoport, 16 beteg) hatóanyag nélküli orrsprayt. Az eredmények értékeléséhez a módosított Lund–Mackay-féle CT-értékelő pontrendszert, a tüneti változásokat vizsgáló pontrendszert (SNAQ-11), életminőségtesztet és endoszkópos kiértékelést végeztek. A műtétek előtt és a műtéteket követően egy évvel elvégzett vizsgálatok eredményeit SPSS 14.0 for Windows program segítségével értékelték. Eredmények: Az A csoport betegeinek CT-értékelő pontrendszere egy év elteltével jelentős szórást mutatott, a javulás jelei nélkül. A B csoportban a CT-értékelő pontrendszere enyhe javulást mutatott, azonban ez az A csoporttal összehasonlítva nem volt szignifikáns (p = 0,052). A tüneti változásokat vizsgáló pontrendszer (SNAQ-11), valamint az életminőségteszt mindkét betegcsoportban lényeges javulást mutatott, a két tesztben a változások mértékét összehasonlítva azonban egyik betegcsoport javára sem találtak szignifikáns különbséget. Az endoszkópos lelet az amphotericin B-csoport javára mutatott mérsékelt javulást 12 hónappal a műtéteket követően. Következtetések: A szerzők megállapítják, hogy az orrpolyposis miatt operált betegekben az amphotericin B-tartalmú orrcsepp egy évig történő adása nem okoz szignifikáns változást a CT-pontszámok, a klinikai tünetek, valamint az életminőség vonatkozásában. A betegek endoszkópos követése során az amphotericin B-csoportban észlelt kedvezőbb kép a klinikai tünetek javulásában nem nyilvánult meg. A szerzők a tanulmány eredményeiből levont tanulságok tükrében tárgyalják a gombaelméletről rendelkezésre álló eddigi ismeretanyagot. Kritikusan elemzik az elmúlt években publikált 7, ellentmondásos konklúziót mutató klinikai tanulmány tapasztalatait is.


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