Hierarchical clustering in evaluating inflammatory upper airway phenotypes; increased symptoms in adults with allergic multimorbidity.

BACKGROUND: Inflammatory upper airway diseases cause significant morbidity. They include phenotypes with different treatment; allergic or non-allergic rhinitis (AR, nAR), and chronic rhinosinusitis with or without nasal polyps (CRSwNP, CRSsNP). In clinical practice, these phenotypes are often difficult to distinguish and may overlap. OBJECTIVE: To evaluate if hierarchical clustering can be used to distinguish these phenotypes based on the presence of nasal polyps, off-seasonal allergic symptoms, and self-reported background characteristics - e.g. atopic dermatitis (AD); and to further analyse the obtained clusters. METHODS: We studied a random sample of 74 CRS (chronic rhinosinusitis) patients, and a control group of 80 subjects without CRS with/without AR (tertiary hospitals, 2006-2012). All underwent interview and nasal examination, and filled a questionnaire. Variables regarding demographics, off-seasonal symptoms, and clinical findings were collected. Hierarchical clustering was performed, the obtained clusters were cross-tabulated and analysed. RESULTS: Four clusters were identified; 1: "Severe symptoms and CRSwNP" (n = 29), 2: "Asymptomatic AR and controls" (n = 39), 3: "Moderate symptoms and CRSsNP" (n = 36), and 4: "Symptomatic and AD" (n = 50). Cluster 1 had most sinonasal symptoms, cluster 3 had a high prevalence of facial pain. The presence of AR did not distinguish CRS groups. Of the AR subjects, 51 % belonged to cluster 4, where AR with off-seasonal airway symptoms and AD predominated. CONCLUSIONS: Hierarchical clustering can be used to distinguish inflammatory upper airway disease phenotypes. The AR phenotype was subdivided by the presence of AD. Adult AR+ AD patients could benefit from active clinical care of the upper airways also off-season.

Factors affecting revision rate of chronic rhinosinusitis.

OBJECTIVE: Chronic rhinosinusitis (CRS) is a variable multifactorial disease. It can be divided into forms with nasal polyps (CRSwNP) and without (CRSsNP). Sinus and/or nasal polypectomy surgery are considered if maximal conservative treatment is insufficient. The predictive factors of the need of revision surgery comprise mostly the CRSwNP phenotype and are not fully understood. STUDY DESIGN: The aim of this follow-up study was to evaluate the factors associated with the revision surgery rate in CRS patients with variable extent of disease. METHODS: Data of CRS patients (N = 178) undergoing sinus surgery and/or nasal polypectomy in 2001 to 2010 were used. Patient characteristics and follow-up data were collected from patient records and questionnaires. Associations were analyzed by Fisher's exact, Mann Whitney U, and the Kaplan-Meier method with log-rank test. Unadjusted Cox's proportional hazard models were used for 12 variables and were fitted for the need for revision sinus surgery and/or nasal polypectomy during follow-up of in average 9 years. RESULTS: The proportion of CRS patients who had undergone revision in 5 years was 9.6%. After adjustment, the following factors associated significantly with the need for recurrent CRS surgery: allergic rhinitis, corticosteroid treatment, previous surgery of CRS, and recurrent NP. CONCLUSION: Increased risk of progressive CRS phenotypes with the need for revision surgery would putatively be recognized by relatively simple clinical questions. Further studies with increased sample size are needed to evaluate whether these predictive factors would be relevant for developing better detection and management of progressive CRS. LEVEL OF EVIDENCE: 2b.

Facial subcutaneous emphysema after tonsillectomy.

BACKGROUND: Tonsillectomy is a commonly performed and relatively safe surgical procedure. However, it can potentially be associated with several complications. We report a case of facial subcutaneous emphysema that occurred after elective tonsillectomy. CASE: Tonsillectomy was performed on a patient with a history of frequent tonsillitis. After surgery, the patient developed facial subcutaneous emphysema that resolved within a few days without any further complications. CONCLUSION: Subcutaneous emphysema is a rare complication of tonsillectomy. Tonsil should be removed along the tonsilar capsule. If its removal causes a deeper than usual mucosal tear up to the level of the muscles, then air might potentially pass through the pharyngeal wall to the parapharyngeal, retropharyngeal and prevertebral spaces.

Audit questionnaire as part of community action against heavy drinking.

AIMS: The purpose of the present study was to find out how well the alcohol questionnaire, AUDIT, as part of a wide community action was noticed, and if it had any effects especially among heavy drinkers. METHODS: As part of local community action campaign ('Booze Weeks'), the AUDIT pamphlet was delivered to all households (90,000) in Tampere, Finland, and 500 randomly selected inhabitants were interviewed on telephone. RESULTS: More than three quarters of those consuming alcohol had noticed the 'Booze Weeks' campaign and considered it necessary. Inhabitants who drank most frequently were also the most likely to have noticed the campaign and the AUDIT pamphlet. CONCLUSIONS: As part of a wide community action, home-delivered self-help material is often noticed especially by heavy drinkers. They might come to realize their own heavy drinking and seek professional treatment.

Substance use-related outpatient consultations in specialized health care: an underestimated entity.

BACKGROUND: To study the occurrence and documentation of substance use related outpatient visits in specialized health care. METHODS: The diagnosis recorded in retrospective discharge data in Tampere University Hospital for 6 years was compared with the prospective data gathered from separately completed forms added during an 8-week period to every outpatient's discharge data. In this form, the relation of substance use and the actual reason for the consultation were specifically elicited. RESULTS: On the basis of diagnoses, retrospectively, 0.4% (6,666 of 1,555,898) of outpatient visits were caused by substance use. In the prospective part of the study, 5.6% of visits (1,401/25,014) were related to substance use. Retrospective study demonstrated 2% prevalence of substance use, whereas prospective study showed 36% substance use-related visits at the emergency room. According to the retrospective discharge data, alcohol-related organ damages were the major reason for substance use-related outpatient visits. In the prospective study, the proportion of acute traumas was most prevalent. CONCLUSIONS: Our study indicates that substance use-related visits often remain undetected in specialized health care. Substance use-related visits were underdocumented/undetected in the emergency room. Using a simple separate form could dramatically increase the detection of substance use-related visits.

Local anesthesia with EMLA cream for maxillary sinus puncture.

Maxillary sinus puncture is traditionally carried out through the lateral wall of the inferior nasal meatus under local anesthesia. One problem with it is that the insertion of a cotton-tipped applicator soaked in local anesthetic is painful. Patients also dislike waiting for the anesthetic effect with the metallic applicators in the nose. In this study, we present a new, well-tolerated method of topical anesthesia for maxillary sinus puncture via the inferior meatus of the nose. Twenty adult patients with maxillary sinus infection who were undergoing bilateral maxillary sinus puncture were studied. One side of each patient's nose was anesthetized with a cotton-tipped applicator moistened with a lidocaine-adrenaline solution (LA), and the other side was anesthetized with EMLA cream instilled with a suction needle and syringe; the sides were chosen randomly. The mean "application of anesthesia" pain score on a 100-mm visual analog scale was 39.2 for the LA side and 9.1 for the EMLA side (p < .01). The anesthesia required for puncture was reached more quickly on the EMLA side than on the LA side (p = .02). The mean puncture pain score was 25.1 with LA and 8.6 with EMLA (p = .01). Fourteen patients out of the 20 (70%) found EMLA more tolerable, 3 patients (15%) found no difference, and 3 patients (15%) preferred LA (p < .01). We conclude that EMLA is better-tolerated and quicker-acting than LA for local anesthesia in maxillary sinus puncture.