Academic institution pilot study shows far fewer diagnoses of sinusitis than reported nationally.

OBJECTIVE: To compare the prevalence of acute sinusitis (AS) and chronic sinusitis (CS) diagnosed by primary care and emergency medicine physicians in our academic institution to national data. STUDY DESIGN: Cross-sectional pilot study of institutional census data and a population-based national sample. The setting was primary care and emergency departments at an academic healthcare institution and community healthcare practices nationally. MATERIALS AND METHODS: We determined the proportion of adults visits at our institution for AS and CS from January 1, 2005, to December 31, 2010. We used the same parameters with the National Ambulatory Medical Care Survey and the National Hospital Ambulatory Medical Care Survey. As a control comparison, we determined the proportion of visits for epistaxis. RESULTS: The sinusitis prevalence was considerably lower at our academic institution: all sinusitis (AS and CS combined) ranged from 0.8% to 1.0% at our institution compared to 3.1% to 3.7% nationally. There were very small differences between AS rates at the academic institution (0.7%-0.8%) and nationally (0.8%-1.4%, P < 0.001) but very large differences between CS rates at the academic institution (0.1%) and national data (1.7%-2.9%, P < 0.001). Epistaxis rates were nearly identical in both datasets (0.1%-0.2%, P = 0.98-0.99). CONCLUSION: The prevalence of CS is much lower at our academic institution, but the prevalence of AS and epistaxis are similar to national data. This suggests CS is over-diagnosed by primary care and emergency medicine providers and that CS diagnosed outside of an academic institution or a specialty clinic may not hold up to diagnostic scrutiny. For this reason, diagnostic and treatment protocols for CS that have been developed in academic specialty clinics should not be extrapolated to patients diagnosed with CS in the community setting. The most appropriate intervention for the majority of patients diagnosed with CS in primary care and emergency medicine may be education of providers and patients about conditions that may be misdiagnosed as CS.

A diagnostic dilemma: chronic sinusitis diagnosed by non-otolaryngologists.

BACKGROUND: Ambulatory care visits for chronic sinusitis outnumber visits for acute sinusitis. The majority of these visits are with non-otolaryngologists. In order to better understand patients diagnosed with chronic sinusitis by non-otolaryngologists, we sought to determine if incident cases of chronic sinusitis diagnosed by primary care (PC) or emergency medicine (EM) providers meet diagnostic criteria. METHODS: This was a retrospective cohort study. Patients were identified using administrative data from 2005 to 2006. The dataset was then clinically annotated based on chart review. We excluded prevalent cases. RESULTS: We identified 114 patients with newly diagnosed chronic sinusitis in EM (75) or PC settings (39). Rhinorrhea (EM 61%, PC 59%) and nasal obstruction (EM 67%, PC 64%) were common in both settings but facial fullness (EM 80%, PC 39%) and pain (EM 40%, PC 18%) were more common in the EM setting. Few patients reported symptoms of 90 days or longer (EM 6.0%, PC 24%) and no patient had evidence of inflammation on physical examination. A minority of patients received a sinus computed tomography (CT) scan (22.8%) or nasal endoscopy (1.8%). In total, only 1 patient diagnosed with chronic sinusitis met the diagnostic criteria. CONCLUSION: Most patients diagnosed with chronic sinusitis by non-otolaryngologists do not have the condition. Caution should be used in studying chronic sinusitis using administrative data from non-otolaryngology providers because a large proportion of the patients may not actually have the disease.

Diagnosis and treatment of acute sinusitis in the primary care setting: A retrospective cohort.

OBJECTIVES AND HYPOTHESIS: Our objectives were to characterize the quality of acute sinusitis care and to identify nonclinical factors associated with antibiotic use for acute sinusitis. We hypothesized that we would identify provider-level factors associated with antibiotic use. STUDY DESIGN: Retrospective cohort at a single academic institution. METHODS: We developed and clinically annotated an administrative dataset of adult patients diagnosed with acute sinusitis between January 1, 2005, and December 31, 2006. We used identify factors associated with receipt of antibiotics. RESULTS: We find that 66.0% of patients with mild symptoms of short duration are given antibiotics, and that nonclinical factors, including the individual provider, the provider's specialty, and the presence of a medical trainee, significantly influence antibiotic use. Relative to internal medicine providers, family medicine providers use fewer antibiotics, and emergency medicine providers use more antibiotics for acute sinusitis. CONCLUSIONS: Antibiotics continue to be overused for patients with mild acute sinusitis of short duration. Nonclinical characteristics, including the individual provider, the provider's specialty, and the presence of a medical trainee, significantly influence use of antibiotics for acute sinusitis. LEVEL OF EVIDENCE: 4.

Pediatric deep space neck infections in U.S. children, 2000-2009.

OBJECTIVE: Deep space neck infections (DNI) are common pediatric illnesses, which can lead to significant morbidity and healthcare expenditures. Recent studies suggest that the incidence of pediatric DNI in the United States is increasing, but no nationally representative studies exist. This study sought to characterize pediatric DNI at the national level over the past decade and to determine whether U.S. incidence of pediatric DNI and associated resource utilization changed from 2000 to 2009. METHODS: The Kids' Inpatient Database (KID) was used to evaluate pediatric DNI incidence, demographics, and outcomes from 2000 to 2009. Cases were identified using the International Classification of Diseases, 9th Revision, Clinical Modification (ICD-9-CM) diagnostic codes for peritonsillar abscess (475), parapharyngeal abscess (478.22), and retropharyngeal abscess (478.24). Regression analyses within each year and across the entire study period were performed on variables of interest including performance of imaging studies, operative intervention, length of hospital stay and total hospital charges. RESULTS: The incidence of retropharyngeal abscess increased significantly from 0.10 cases per 10,000 in 2000 to 0.22 in 2009 (p=0.02). There was no significant change during this time period in the incidence of combined DNI (1.07-1.37 cases per 10,000, p=0.07), peritonsillar abscess (0.82-0.94 cases per 10,000, p=0.12) or parapharyngeal abscess (0.08-0.14 cases per 10,000, p=0.13). The percentage of retropharyngeal abscess patients managed surgically decreased (48-38%, p=0.04) and the average length of hospital stay also decreased during this time (4.6-3.9 days, p=0.03). There was a marked increase in the total inflation-corrected hospital charges per case for all DNI ($9,486-16,348, p=0.005). CONCLUSIONS: The incidence of pediatric retropharyngeal abscess has increased significantly from 2000 to 2009, without concurrent increases in the incidence of combined DNI, peritonsillar, or parapharyngeal abscesses. There has been a change in management of retropharyngeal abscesses during this time with a decrease in operative intervention and a decrease in the length of hospital stay. Hospital charges associated with all pediatric DNI have nearly doubled during this timeframe, warranting future epidemiologic resource utilization studies in this population.