Diagnosis Of Chronic Rhinosinusitis Research Articles

Familial risk of pediatric chronic rhinosinusitis.

To determine the risk of chronic rhinosinusitis (CRS) in relatives of children with a diagnosis of CRS. Retrospective observational cohort study with population-based matched controls. A unique genealogical database linked to medical records was used to identify subjects ≤12 years old with a diagnosis of CRS from 1996 to 2011. The familial recurrence risks of CRS in first- through fifth-degree relatives of probands were calculated using Cox models and compared to controls randomly selected from the Utah population and matched 10:1 on sex and birth year. We identified 496 pediatric patients with CRS. Siblings of patients with CRS demonstrated a 57.5-fold increased risk (P < 10(-8) ) of also having pediatric CRS. First cousins had a 9.0-fold increased risk (P < 10(-3) ) and second cousins had a 2.9-fold increased risk (P = .002) of pediatric CRS. First-degree relatives, second-degree relatives, and first cousins of pediatric cases demonstrated a significant increased risk of having adult CRS. Parents of probands demonstrated a 5.6-fold increased risk (P < 10(-15) ). Fifty-five probands had one affected parent versus three probands with two affected parents. In the largest population study to date of children with CRS, a significant familial risk is confirmed. Parents of probands were also at increased risk, although it was much more likely for one parent to be affected than both, suggesting a genetic component of the disease. Further understanding of the genetic basis of CRS and its interplay with environmental factors could clarify the etiology and lead to more effective targeted treatments. 3b Laryngoscope, 126:739-745, 2016.

Indications for Referral for Pediatric Rhinosinusitis

Rhinosinusitis in children is defined as inflammation of the nose and paranasal sinuses (Fokkens et al. Rhinology. 2012;50:1–12). Pediatric chronic rhinosinusitis (CRS) is relatively uncommon compared to acute rhinosinusitis (ARS) and is characterized by sinus symptoms lasting over 12 weeks despite medical therapy. Pathogenesis of this disease is multifactorial and generally involves an initial insult (usually a viral sinusitis) followed by bacterial seeding and mucosal inflammation. The diagnosis of chronic rhinosinusitis in the pediatric population can be challenging as symptoms can be very similar to common conditions such as allergic rhinitis or adenoiditis. In many cases, objective findings such as inflammation seen on nasal endoscopy or sinus CT scans are necessary to confirm the diagnosis of CRS. The mainstay of treatment of pediatric CRS is medical therapy with surgical therapy reserved for the minority of patients. Standard medical therapy usually includes a combination of nasal corticosteroid sprays, nasal irrigation, and decongestants. Antibiotics are usually reserved for bacterial acute exacerbations of CRS and usually target the most common offending pathogens (Streptococcus pneumoniae, Haemophilus influenzae, and Moraxella catarrhalis). Referral to an otolaryngologist is recommended for children who fail medical therapy, have orbital complications of sinusitis, or require surgery. There are currently many alternate medical treatment options available to physicians; however, data supporting their efficacy is lacking in many cases. Recent studies show that even minimally invasive surgical procedures, such as adenoidectomy and/or balloon sinuplasty can lead to significant symptom improvement. Further, traditional endoscopic sinus surgery offers a safe, highly effective treatment option when necessary.

Acute and chronic rhinosinusitis and allergic rhinitis in relation to environment, comorbidity and ethnicity

This study was conducted to assess the relation between allergic rhinitis (AR), acute rhinosinusitis (ARS) and chronic rhinosinusitis (CRS) and environment, comorbidity and ethnicity. A posted GA2LEN screening questionnaire was sent to all those in a random sample of Dutch population (n=16700) in three different areas. The prevalence of ARS is significantly related to AR, a doctor's diagnosis of CRS, urticaria, eczema, smoking, gender, ethnicity and age. The prevalence of CRS is significantly related to AR, a doctor's diagnosis of CRS, urticaria, adverse response to painkiller, smoking, ethnicity, asthma and age. The prevalence of AR is significantly related to a doctor's diagnosis of CRS, urticaria, eczema, adverse response to painkillers, smoking, occupation, ethnicity, asthma, age, CRS and ARS Some environmental factors, comorbidity and ethnicity are positively or negatively related to AR, ARS and CRS. Place of residence in the Netherlands is not related to the prevalence of these diseases.

Influence of the diagnosis chronic rhinosinusitis on asthma response to omalizumab in severe, uncontrolled asthmatics

Background Omalizumab is a humanized anti-immunoglobulin E (IgE) monoclonal antibody that has been approved as add-on therapy for the treatment of adults with moderate-tosevere (United States) or severe (Europe) allergic asthma, inadequately controlled after treatment with high-dose inhaled corticosteroids plus long-acting b-agonists. The clinical efficacy of Omalizumab has not only been shown in the treatment of severe uncontrolled asthma, but also in the treatment of nasal polyposis and comorbid asthma. The aim of this analysis was to examine whether the diagnosis of chronic rhinosinusitis (CRS) influenced the asthma response to Omalizumab treatment.

Accuracy of limited four-slice CT-scan in diagnosis of chronic rhinosinusitis

ObjectiveChronic rhinosinusitis (CRS) is a common chronic health condition worldwide. Standard CT-scan is the method of choice for diagnosis of CRS but its high price and considerable radiation exposure have limited its application. The main goal of this study was to evaluate the accuracy of limited four-slice coronal CT-scan in the diagnosis of CRS. Material and methodThis cross-sectional study was conducted on 46 patients with CRS, for one year, based on American Society of Head and Neck Surgery criteria. All patients received the preoperative standard and four-slice CT-scans, after which endoscopic sinus surgery was performed. Findings of four-slice CT-scans were compared with those of conventional CT-scan and the sensitivity and specificity of four-slice CT-scan and its agreement with conventional CT-scan was calculated. ResultIn this study, 46 patients including 32 males (69.6%) and 14 females (30.46%) with a mean age of 33 and standard deviation of 9 years, were evaluated. Sensitivity and specificity of four-slice CT-scan were 97.5% and 100%, respectively. Also, positive predictive value (PPV) and negative predictive value (NPV) of four-slice CT was 100% and 85.71%, respectively. There was a strong agreement between four-slice CT and conventional CT findings. ConclusionConsidering the high sensitivity and specificity of four-slice CT-scan and strong agreement with conventional CT-scan in the diagnosis of CRS and the lower radiation exposure and cost, application of this method is suggested for both diagnosis and treatment follow-up in CRS.

Association between Chronic Rhinosinusitis and Health-Related Quality of Life in Adults with Cystic Fibrosis.

Over the past four decades, the median age of survival has nearly doubled for individuals living with cystic fibrosis (CF). Chronic diseases such as chronic rhinosinusitis increase in prevalence with age. In the non-CF population, chronic rhinosinusitis is associated with reduced health-related quality of life. Our objectives were to determine the prevalence of chronic rhinosinusitis among adults with CF and to evaluate the impact of chronic rhinosinusitis on health-related quality of life. Individuals from a large academic teaching hospital in Vancouver, British Columbia, Canada, were eligible to participate in this cross-sectional study. Included subjects were at least 19 years of age, had a confirmed diagnosis of CF, and attended the CF clinic between September 2013 and April 2014. Participants completed a CF-specific health-related quality of life questionnaire (the Cystic Fibrosis Questionnaire-Revised for adolescents and adults over 14 years of age [CFQ-R 14+]) and underwent symptom and endoscopic assessment for diagnosis of chronic rhinosinusitis. Medical charts were reviewed for potential confounders, including sociodemographic (age, sex, and body mass index) and clinical (age at CF diagnosis, type of CF mutation, lung function, and chronic Pseudomonas aeruginosa infection) factors. Multivariable linear regression was used to model the relationship between chronic rhinosinusitis and CFQ-R 14+ domains, adjusted for potential confounders. A total of 121 individuals were contacted in the clinic, of whom 113 (93.4%) consented to participate. The prevalence of chronic rhinosinusitis was found to be 59.2% (95% confidence interval [CI], 49.6-68.2%). Sociodemographic and clinical factors were similarly distributed between chronic rhinosinusitis-positive and chronic rhinosinusitis-negative groups. Lung function, as measured by FEV1 (% predicted value), did not significantly differ between participants with versus those without chronic rhinosinusitis (mean difference, 2.0%; 95% CI, -8.1% to 13.0%). Following adjustment for sex and lung function, individuals with chronic rhinosinusitis reported significantly worse scores on the respiratory symptoms domains compared with their counterparts without chronic rhinosinusitis (regression coefficient, -3.93; 95% CI, -8.02 to 0.15). The majority of adults with CF have evidence of concomitant chronic rhinosinusitis. Chronic rhinosinusitis is independently associated with worse respiratory symptom on the CFQ-R 14+. Chronic rhinosinusitis should be diagnosed and managed to optimize the health-related quality of life of adults with CF. Clinical trial registered with clinicaltrials.gov (NCT02003079).

Correlations Between Symptoms, Nasal Endoscopy Computed Tomography and Surgical Findings in Patients with Chronic Rhinosinusitis

Although chronic rhinosinusitis (CRS) is increasing in prevalence and incidence, its diagnosis and treatment still pose a challenge. The Task Force on rhinosinusitis (TFR) advocates the use of symptom based criteria. However, many otorhinolaryngologists depend on diagnostic nasal endoscopy and computed tomography (CT) of paranasal sinuses for diagnosis of CRS. Computed tomography has been extensively relied upon in confirming the presence of CRS, in assessing severity of disease, surgical planning and management decisions. Despite its widespread use, several studies have failed to correlate findings on CT with symptom severity. To determine the correlations between symptoms described at presentation, radiological findings, endoscopy and extensiveness of surgery. Longitudinal, prospective, analytical study conducted from August 2011 to August 2012 among 87 patients diagnosed as CRS according to the TFR criteria. Symptom, endoscopic, radiological and surgical scoring was done by using Lund and Mackay staging system. Pearson correlation coefficients between scores for symptoms, endoscopy, sinus CT and surgery was determined. When overall symptom score was correlated with radiological score and endoscopy score, it was found to be statistically significant (p= <0.01). However, no significant relationship was found between Lund and Mackay symptom and surgery score. The symptom criteria used by TFR for CRS diagnosis are not very specific for sinus disease. A detail assessment of the subjective and objective criteria (CT and endoscopy) is necessary for tailoring surgical plan but should not be relied upon for determining the extensiveness of surgical intervention.

Single seventh day debridement compared to frequent debridement after endoscopic sinus surgery: a randomized controlled trial.

The aim of this study was to evaluate the postoperative debridement frequency following endoscopic sinus surgery. Individual randomized controlled trial. Sixty-two adult patients with a diagnosis of chronic rhino sinusitis (CRS) with nasal polyps (NP) and CRS without NP meeting the inclusion criteria were enrolled in this prospective study. The patients were randomized equally to frequent debridement (FD; at postoperative weeks 1, 2 and 4) or to a single debridement (SD; at postoperative week 1) after surgery. The outcomes were assessed with visual analog scale (VAS) for nine main symptoms concerning patient discomfort within the first 4 weeks, with the modified Lund-Kennedy endoscopic score (MLKES) at weeks 4 and 24 and with the sino-nasal outcome test-20 (SNOT-20) at week 24. Thirty-seven of the patients were male, and twenty-five were female. The mean age was 36.1 ± 13.5 in FD group and 39.2 ± 14.7 in SD group. In the SD group, the VAS scores at postoperative week four showed significantly less discomfort at visits (p = 0.004) and less negative effects on their work (p = 0.013). There was no statistically significant difference between the two groups in the week 4 and 24 MLKES and in the week 24 SNOT-20 scores (p > 0.05). The endoscopic findings did not show significant differences between the groups. Our data indicate that FD causes more discomfort at the required visits, more facial pain and more negative effects on patients' work; this method is not superior to postoperative single seventh day debridement in terms of the 24-week quality of life and endoscopic scores. 1b.

Clinical practice guideline (update): adult sinusitis.

This update of a 2007 guideline from the American Academy of Otolaryngology--Head and Neck Surgery Foundation provides evidence-based recommendations to manage adult rhinosinusitis, defined as symptomatic inflammation of the paranasal sinuses and nasal cavity. Changes from the prior guideline include a consumer added to the update group, evidence from 42 new systematic reviews, enhanced information on patient education and counseling, a new algorithm to clarify action statement relationships, expanded opportunities for watchful waiting (without antibiotic therapy) as initial therapy of acute bacterial rhinosinusitis (ABRS), and 3 new recommendations for managing chronic rhinosinusitis (CRS). The purpose of this multidisciplinary guideline is to identify quality improvement opportunities in managing adult rhinosinusitis and to create explicit and actionable recommendations to implement these opportunities in clinical practice. Specifically, the goals are to improve diagnostic accuracy for adult rhinosinusitis, promote appropriate use of ancillary tests to confirm diagnosis and guide management, and promote judicious use of systemic and topical therapy, which includes radiography, nasal endoscopy, computed tomography, and testing for allergy and immune function. Emphasis was also placed on identifying multiple chronic conditions that would modify management of rhinosinusitis, including asthma, cystic fibrosis, immunocompromised state, and ciliary dyskinesia. The update group made strong recommendations that clinicians (1) should distinguish presumed ABRS from acute rhinosinusitis (ARS) caused by viral upper respiratory infections and noninfectious conditions and (2) should confirm a clinical diagnosis of CRS with objective documentation of sinonasal inflammation, which may be accomplished using anterior rhinoscopy, nasal endoscopy, or computed tomography. The update group made recommendations that clinicians (1) should either offer watchful waiting (without antibiotics) or prescribe initial antibiotic therapy for adults with uncomplicated ABRS; (2) should prescribe amoxicillin with or without clavulanate as first-line therapy for 5 to 10 days (if a decision is made to treat ABRS with an antibiotic); (3) should reassess the patient to confirm ABRS, exclude other causes of illness, and detect complications if the patient worsens or fails to improve with the initial management option by 7 days after diagnosis or worsens during the initial management; (4) should distinguish CRS and recurrent ARS from isolated episodes of ABRS and other causes of sinonasal symptoms; (5) should assess the patient with CRS or recurrent ARS for multiple chronic conditions that would modify management, such as asthma, cystic fibrosis, immunocompromised state, and ciliary dyskinesia; (6) should confirm the presence or absence of nasal polyps in a patient with CRS; and (7) should recommend saline nasal irrigation, topical intranasal corticosteroids, or both for symptom relief of CRS. The update group stated as options that clinicians may (1) recommend analgesics, topical intranasal steroids, and/or nasal saline irrigation for symptomatic relief of viral rhinosinusitis; (2) recommend analgesics, topical intranasal steroids, and/or nasal saline irrigation) for symptomatic relief of ABRS; and (3) obtain testing for allergy and immune function in evaluating a patient with CRS or recurrent ARS. The update group made recommendations that clinicians (1) should not obtain radiographic imaging for patients who meet diagnostic criteria for ARS, unless a complication or alternative diagnosis is suspected, and (2) should not prescribe topical or systemic antifungal therapy for patients with CRS.

Measuring Chronic Rhinosinusitis

The diagnosis of chronic rhinosinusitis requires a combination of subjective patient symptoms and corroborative objective evidence of disease on sinonasal endoscopy or CT imaging. An attempt to measure disease severity quantifies both subjective and objective disease criteria. Subjective symptoms are documented using patient-reported outcome measures in the form of generic quality of life assessments and disease-specific symptom questionnaires. Evaluations of sinonasal endoscopy and CT imaging require scoring systems to reliably document objective disease severity. Ultimately, instruments that accurately estimate subjective and objective disease severity are essential in order to longitudinally evaluate outcomes after rhinologic treatment.

Anatomical correlation between existence of concha bullosa and maxillary sinus volume.

The objective of this study was to assess the effects of concha bullosa variation on maxillary sinus volume and uncinate angle. The study group included 169 patients (338 sides) who underwent either surgical or medical treatment with the diagnosis of chronic rhinosinusitis. The paranasal sinus computed tomography of these patients was analyzed to measure maxillary sinus volume, uncinate angle and existence of concha bullosa. Subsequently, these variables were evaluated to find out possible relationship inbetween. Mean maxillary sinus volume and uncinate angle at right and left sides were 15.21±0.47 and 15.51±0.48mm(3), 30.57±0.62° and 30.20±0.68°, respectively. There was no difference between patients with or without concha bullosa in regard to maxillary sinus volume and uncinate angle at both sides. Maxillary sinus volume and degree of uncinate angle did not show any significant correlation at both sides; r=-0.124, p=0.107 and r=-0.136, p=0.078. In conclusion, concha bullosa is a common anatomical variation at nasal cavity. The existence of concha bullosa does not have any association with the volume of maxillary sinus and angle of uncinate process.

Cost efficient workup and management of patients with chronic rhinosinusitis - challenges and unmet needs.

Chronic rhinosinusitis (CRS) is a common disease, estimated to occur in 12-16% of the United States population. This prevalence creates a significant health burden with an estimated 15 million ambulatory visits for the condition annually. Consequently, practice guidelines have been designed to assist both the primary care provider and specialist in establishing a CRS diagnosis and prescribing effective treatment for CRS. The guidelines for CRS diagnosis have evolved since the United States Rhinosinusitis Task Force first published its symptom-based guidelines in 1997. Contemporary practice guidelines still require 12 weeks of appropriate symptoms, but now include corroboration of objective sinonasal inflammation demonstrated on physical exam, imaging, or endoscopy to arrive at a CRS diagnosis. While these diagnostic criteria are seemingly straightforward and are regarded as the gold standard for the diagnosis, the appropriate timing of imaging and endoscopy remain unspecified and continue to present challenges for both primary care and specialty providers. These considerations have to be measured by the direct and indirect costs of the diagnostic workup including office visits, CT scanning, endoscopy, as well as the potential for overuse of treatment modalities such as antibiotics and steroid medications. The goal of this review is to update the primary care provider and otolaryngologist on current evidence regarding the diagnosis and treatment of chronic rhinosinusitis, including the costs and timing of endoscopy and imaging.

Does time to endoscopic sinus surgery impact outcomes in chronic rhinosinusitis? Retrospective analysis using the UK clinical practice research data.

Patients with chronic rhinosinusitis (CRS) refractory to medical management may elect endoscopic sinus surgery (ESS). Recent data showed that clinical outcomes of patients treated earlier outperformed those of patients treated later in the disease continuum. In this study, CRS-related healthcare utilisation of patients treated early versus late was analysed using the UK-based Clinical Practice Research Database. Two cohorts ("Early Cohort": ESS within 12 months of first CRS diagnosis, versus "Late Cohort": ≥ 5 years from diagnosis to ESS) were matched for age, gender, asthma, polyposis. Healthcare needs related to CRS were analysed post-operatively for 5 years. Patients in the Late cohort used significantly more CRS-related care than patients in the Early cohort visits and 0.54 prescriptions per patient per year. A sub-analysis of patients with and without asthma indicated that patients in the Late cohort without asthma had healthcare needs equivalent to patients in the Early cohort with asthma. Delayed surgical intervention for CRS is associated with greater post-operative healthcare needs than ESS within 12 months of first CRS diagnosis.

Prevalence and psychopathological characteristics of anxiety and depression in patients with chronic rhinosinusitis before endoscopic sinus surgery

To investigate the prevalence and psychopathological characteristics of anxiety and depression in patients with chronic rhinosinusitis (CRS) and to find the risk factors leading to psychological problems. Between August 2013 and April 2014, 117 consecutive patients with the diagnosis of CRS who had been scheduled for endoscopic sinus surgery were prospectively enrolled. Somatic and psychological symptoms were evaluated using a series of questionnaire instruments. The instruments included symptom checklist-90 (SCL-90), self-rating depression scale (SDS), self-rating anxiety scale (SAS) and the visual analogue scale (VAS) and the sinonasal outcome test 20 (SNOT-20) and Lund-Mackay computed tomography score. The results of SAS, SDS, SCL-90 were compared with the standard, obtained from healthy Chinese population. Multivariate Logistic regression was used to analyze the factors that might cause anxiety and depression. SPSS 19.0 software was used to analyze the data. The scores of SAS and SDS (39.40 ± 11.55, 54.05 ± 10.96) were significantly higher than those of our country's normal standard (29.78 ± 10.46, 41.88 ± 10.57, t equals 5.648, 7.529, all P < 0.01). The SCL-90 scores were significantly higher than those of the normal standard population, including dimension of somatization, anxiety, depression, psychosis and total average score of the factors ( all P < 0.01), the result of somatization, anxiety, depression had positive correlation with the scores of SAS and SDS (r equals 0.681, 0.781, 0.531, 0.866, 0.674, 0.557, all P < 0.05). Multivariate Logistic regression showed that gender and CRS complicated with asthma or allergic rhinitis (AR) and the symptom of nasal obstruction were related to the incidence of anxiety depression comorbid. In addition, the gender and concurrent asthma had positive correlation with incidence of any anxiety or depressive disorder. To compare the abnormal psychological state group and healthy group, the SNOT-20 scores had no statistical significance (all P > 0.05). High prevalence of anxiety and depression was found in CRS patients. Such factors as gender, nasal obstruction and concurrent with asthma or AR are high risk factors for anxiety and depression in patients with CRS.

Risk factors for chronic rhinosinusitis.

To review the recent literature on risk factors for chronic rhinosinusitis (CRS) with an emphasis on genetic, comorbid diseases and environmental factors associated with CRS. Through identifying potential risk factors for CRS, we aim to glean insights into the underlying pathogenic mechanisms essential for developing effective therapeutic strategies. Recent findings demonstrate that genetics and comorbid medical conditions including airway diseases, gastroesophageal reflux disease, inflammatory and autoimmune diseases, and various demographic and environmental factors are associated with having a CRS diagnosis. Limitations of current studies include variable application of disease definitions, lack of prospective longitudinal studies and a disproportionate focus on tertiary care populations. CRS has a broad spectrum of associations ranging from genetics to comorbid diseases and environmental factors. These predisposing factors may provide valuable information for possible designing of therapeutic and preventive interventions. However, to better understand whether these associations cause CRS, further studies are needed to independently replicate findings, establish temporal relationships between exposure and disease onset, evaluate the influence of exposure dose on disease severity, and to understand the biological effects of these risk factors in the context of CRS.

Early versus delayed endoscopic sinus surgery in patients with chronic rhinosinusitis: impact on health care utilization.

To evaluate the impact of early versus delayed endoscopic sinus surgery (ESS) in terms of postoperative health care utilization, using a patient cohort with chronic rhinosinusitis (CRS). Retrospective administrative database analysis. US-based primary and secondary sites of care. CRS patients with ESS in 2010-with no other ESS before 2010 and with complete medical history from 2004 to 2012-were identified within the MarketScan database. Patients were characterized by time interval of first sinusitis or nasal polyposis diagnosis to ESS and grouped as following: group 1, <1 year (n=818); group 2, 1 to <2 years (n=247); group 3, 2 to <3 years (n=274); group 4, 3 to <4 years (n=364); group 5, 4 to <5 years (n=595); and group 6, ≥5 years (n=535). Outpatient visits/procedures and prescriptions associated with sinusitis and/or nasal polyps were analyzed for 1 year preoperatively and 2 years postoperatively. Subanalyses were conducted on separate cohorts with or without asthma or polyps, within each group. Patients in group 1 had significantly fewer visits and prescriptions than patients in group 6 (postoperative visits: group 1, 4.45 [95% CI, 4.06-4.84]; group 6, 6.70 [95% CI, 6.10-7.30; prescriptions: group 1, 4.54 [95% CI, 4.12-4.96]; group 6, 7.61 [95% CI, 6.92-8.31]). Gradual increases in utilization were observed from groups 1 to 6. Subanalysis of patients with and without asthma or polyps showed similar findings. Early intervention after diagnoses of CRS, with or without asthma or polyps, is associated with lower health care utilization than intervention after many years of medical management.

Does time to endoscopic sinus surgery impact outcomes in chronic rhinosinusitis? Retrospective analysis using the UK clinical practice research data

Patients with chronic rhinosinusitis (CRS) refractory to medical management may elect endoscopic sinus surgery (ESS). Recent data showed that clinical outcomes of patients treated earlier outperformed those of patients treated later in the disease continuum. In this study, CRS-related healthcare utilisation of patients treated early versus late was analysed using the UK-based Clinical Practice Research Database. Two cohorts ("Early Cohort": ESS within 12 months of first CRS diagnosis, versus "Late Cohort": ≥ 5 years from diagnosis to ESS) were matched for age, gender, asthma, polyposis. Healthcare needs related to CRS were analysed post-operatively for 5 years. Patients in the Late cohort used significantly more CRS-related care than patients in the Early cohort visits and 0.54 prescriptions per patient per year. A sub-analysis of patients with and without asthma indicated that patients in the Late cohort without asthma had healthcare needs equivalent to patients in the Early cohort with asthma. Delayed surgical intervention for CRS is associated with greater post-operative healthcare needs than ESS within 12 months of first CRS diagnosis.

Serum level of interleukin-21 is elevated in chronic rhinosinusitis.

Chronic rhinosinusitis (CRS) is an inflammatory disease of the sinuses and mucosa with unclear pathogenesis. Interleukin (IL)-21 is mainly expressed in activated cluster of differentiation (CD)4(+) T cells and has potent regulatory effects on the immune system. This study is to determine whether IL-21 in the blood is correlated with CRS. The blood samples from CRS patients and normal controls were analyzed in correlation with clinical features. The eosinophil percentage was counted, and serum levels of total immunoglobulin E (IgE) and IL-21 were analyzed by enzyme-linked immunosorbent assay (ELISA). In addition, IL-21 and interferon (IFN)-γ secreted from stimulated peripheral blood mononuclear cells (PBMCs) were measured by ELISA, and their mRNA expression levels were analyzed by real-time quantitative polymerase chain reaction (RT-qPCR). Disease severity was scored based on computed tomography (CT) scan, nasal endoscopy, and global osteitis scoring scale (GOSS). A total of 55 CRS and 37 healthy subjects were recruited. The average levels of serum total IgE were 20 kU/L in normal group, 290 kU/L in CRS with nasal polys (CRSwNP), and 187 kU/L in CRS without nasal polys (CRSsNP). IL-21 levels were 28 pg/mL in normal group, 54 pg/mL in CRSwNP, and 71 pg/mL in CRSsNP. Both IgE and IL-21 were significantly elevated in both CRS patient subgroups. However, no significant difference was found between these two patient subgroups. The serum IL-21 levels correlated well with the disease severity in the patients. In addition, the secreted IL-21 was enhanced significantly in the patient's PBMCs stimulated by phytohemagglutin (PHA). IL-21 could be a target for diagnosis and treatment of CRS.

Dementia is associated with chronic rhinosinusitis: a population-based case-controlled study.

Cardiovascular diseases are reported to be associated with both chronic rhinosinusitis (CRS) and dementia. Nevertheless, whether dementia is associated with CRS is still unknown. In the present study, we explored the association between dementia with prior CRS using a population-based data set. This study used the Taiwan Longitudinal Health Insurance Database 2000 as the source of data for a case-control study. We included 8768 subjects with dementia as cases and 8768 age- and sex-matched subjects as controls. We identified cases who had received a diagnosis of CRS before having received a diagnosis of dementia. Conditional logistic regression analyses were performed to examine the association of dementia with previously diagnosed CRS. Results showed that of all sampled subjects, 875 (5.0%) had been previously diagnosed with CRS. A chi-squared test showed that there was a significant difference in the prevalences of prior CRS between cases and controls (6.0% versus 4.0%; p < 0.001). The adjusted odds ratio (OR) of prior CRS for subjects with dementia was 1.44 (95% CI, 1.25∼1.66) compared with controls. Furthermore, compared with controls, the OR of prior CRS was similar for subjects with dementia for both sexes (the OR for male subjects was 1.48 and OR for female subjects was 1.41). We concluded that subjects with dementia had a higher odds of having had prior CRS than controls. This study implies a potential association between CRS and dementia.

Predicting Positive CT Findings in Non-Polypoid Para-Nasal Sinus Disease

Objective: Chronic rhinosinusitis affects significant portion of the population and is one of the most common reasons for Otolaryngology visits. In recent years, Computed Tomography (CT) has become the main modality of investigation in sinus disease. However, significant paucity in evidence exists in correlating symptoms and laboratory findings with positive CT findings. Given the associated radiation exposure and significant cost on the healthcare system, clinical guidelines in determining the appropriateness of CT investigation are needed. Study Design: Eighty-three consecutive patients referred to a single rhinologist for evaluation for chronic rhinosinusitis without nasal polyposis were retrospectively reviewed. Setting: The study involved two McGill University associated hospitals in a 13 month period. Subjects and Methods: Patients were evaluated for presence of six subjective symptoms and two objective signs. Complete blood count and CT sinuses were then ordered. CT sinuses were subsequently graded using the Lund-McKay scoring system. Results: No single symptom, sign or combinations were predictive of positive CT finding. No laboratory markers were able to predict a positive scan. Interestingly inflammatory markers were lower in positive scan group compared to the negative scan population. Conclusion: Clinical diagnosis of chronic rhinosinusitis in nonpolypoid patients presents a challenge. CT imaging is a fundamental component in diagnosing those patients, yet clinical experience is important in preventing unnecessary radiation exposure.