Background: In recent studies, convolutional neural networks (CNNs) outperformed dermatologists in distinguishing dermoscopic images of melanoma and nevi. In these studies, dermatologists and artificial intelligence were considered as opponents. However, the combination of classifiers frequently yields superior results, both in machine learning and among humans. In this study, we investigated the potential benefit of combining human and artificial intelligence for skin cancer classification. Methods: Using 11,444 dermoscopic images, which were divided into five diagnostic categories, novel deep learning techniques were used to train a single CNN. Then, both 112 dermatologists of 13 German university hospitals and the trained CNN independently classified a set of 300
Background: Elicitors and symptoms of anaphylaxis are age dependent. However, little is known about typical features of anaphylaxis in patients aged 65 years or more. Methods: The data from the Network for Online Registration of Anaphylaxis (NORA) considering patients aged ≥65 (elderly) in comparison to data from adults (18–64 years) regarding elicitors, symptoms, comorbidities, and treatment measures were analyzed. Results: We identified 1,123 elderly anaphylactic patients. Insect venoms were the most frequent elicitor in this group ( p < 0.001), followed by drugs like analgesics and antibiotics. Food allergens elicited less frequently anaphylaxis ( p < 0.001). Skin symptoms occurred less frequently in elderly patients (77%, p < 0.001). The clinical symptoms were more severe in the elderly (51% experiencing grade III/IV reactions), in particular when skin symptoms ( p < 0.001) were absent. Most strikingly, a loss of consciousness (33%, p < 0.001) and preexisting cardiovascular comorbidity (59%, p < 0.001) were more prevalent in the elderly. Finally, adrenaline was used in 30% of the elderly (vs. 26% in the comparator group, p < 0.001) and hospitalization was more often required (60 vs. 50%, p < 0.001). Discussion and Conclusion: Anaphylaxis in the elderly is often caused by insect venoms and drugs. These patients suffer more often from cardiovascular symptoms, receive more frequently adrenaline and require more often hospitalization. The data indicate that anaphylaxis in the elderly tends to be more frequently life threatening and patients require intensified medical intervention. The data support the need to recognize anaphylaxis in this patient group, which is prone to be at a higher risk for a fatal outcome.
Background: Previous reports indicate that patients with chronic spontaneous urticaria (CSU) are undertreated and that physicians show poor adherence to guideline recommendations. Awareness of CSU has improved in recent years, but it remains unclear if this has improved the management of these patients in clinical practice.Objective: To describe disease burden, quality of life (QoL), and treatment patterns of patients with H 1 -antihistamine-refractory CSU in Germany. Method: A World-wide Antihistamine-Refractory chronic urticaria (CU) patient Evaluation (AWARE) is a global prospective, non-interventional study of CU in the realworld setting, supported by the manufacturer of omalizumab. Patients (18-75 years) were included who had H 1 -antihistamine-refractory CSU for ≥2 months. Disease characteristics, pharmacological treatments, and QoL (dermatology life quality index [DLQI], CU-QoL questionnaire, and angioedema QoL questionnaire) are reported for patients enrolled in Germany. Results: After 1 year in AWARE, CSU remained uncontrolled (urticaria control test[UCT] score <12) in 432 of 1032 (42.2%) patients. QoL impairment remained high after 1 year, with 28.2% of patients reporting that CSU had a moderate/very large/ extremely large effect on the DLQI. Most patients did not receive guideline-recommended treatments at the end of the 1-year observation period. Changes in treatments were most evident at the first patient visit, with an increase in patients receiving omalizumab vs prior therapy from 8.5% to 21.4%, and a decrease in those receiving no treatment from 29.9% to 12.8%. These changes were associated with reduced hives, angioedema, UCT scores, and QoL scores at Month 3, but only modest improvements thereafter. Of 528 patients with uncontrolled CSU and who were eligible for treatment escalation, only 3% received up-dosing of H 1 -antihistamines and only 5% were initiated on omalizumab during 1 year of treatment. Conclusions & Clinical Relevance:This study highlights a significant discrepancy between recommendations for managing CSU in international guidelines, and in real-world clinical practice in Germany.Maurer, Raap, Staubach, and Richter-Huhn equally contributed to this study.
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