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Transient osteoporosis of the hip (TOH) affects pregnant women in the third trimester of pregnancy. Magnetic resonance imaging plays an important role in the diagnosis and shows a pattern of bone marrow oedema. We report a case of TOH post-partum with involvement of both hips in a 34-year-old woman. She was known with undifferentiated spondyloartritis since 2004, which posed a diagnostic challenge. The reported patient was treated conservatively avoiding lactation, weight bearing activities, increased intake of calcium and vitamin D and recovered without further medical treatment.

Introduction: The multinational initiative "3e Initiative in Rheumatology - Multi-national Recommendations for the Management of Ankylosing Spondylitis 2006-7" served the primary purpose of providing specific recommendations for the management of ankylosing spondylitis and spondyloarthritis patients in daily practice., Material and Methods: The scientific committees from the ten participating countries selected nine clinical questions regarding diagnosis, monitoring and pharmacologic non-biologic treatment, and the Danish group chose 2 additional questions about non-pharmacologic treatment. Systematic literature searches were performed in Medline by 3 international and a Danish bibliographic fellow. Outcome data were extracted and processed by use of routine methods from clinical epidemiology and statistics. The evidence was presented to the Danish rheumatologists. The participants were divided into three groups, which each proposed recommendations. After a final plenary discussion, a voting session took place. Subsequently, agreement was obtained, and the strength of the recommendations was graded., Results: The bibliographic fellows identified 2,709 relevant manuscripts and included 477 of these in the analysis. All 186 Danish rheumatologists were invited, and 26 (14,0%) participated in the meeting held in Copenhagen, December 2006. The individual recommendations were endorsed by 68-100% of the participants., Conclusion: Within the framework of the multinational 3e project, it was possible to develop Danish recommendations for AS patients by combining an evidence-based approach and the experience of clinical rheumatologists.

Dengue virus infections have increased globally. This results in an increased incidence of patients with dengue fever in Denmark. In order to draw attention to this diagnosis among febrile persons returning from a stay in tropical and subtropical areas, we present two cases of dengue virus infection and describe the symptoms and diagnostic possibilities. Dengue Haemorrhagic Fever (DHF) is supposed to occur only in persons who have previously had dengue virus infection and who acquire a second infection with dengue virus.

The distributions of sodium and potassium in the serum on admission, and the types of medicine used were studied retrospectively in hospitalized geriatric patients (n = 1418). Sodium concentrations below 130 mmol/l were found in 7.4% and potassium concentrations below 3.0 mmol/l in 5.0% of patients. Risk factors for low sodium concentrations were treatment with the combination of thiazide+amiloride, potassium-sparing diuretics, thiazides, emergency hospitalization and low body weight. Risk factors for low potassium concentrations were treatment with the combination of thiazide+amiloride, thiazides and female gender. On an average, patients were given two different drugs from specified groups both on admission and on discharge, but changes in medical treatment were often performed during the hospital stay. Prehospital treatment with thiazide diuretics and the combination of thiazide+amiloride was frequently withdrawn. 38% were given benzodiazepines on discharge. In 40.4% of these, treatment had been started during the hospital stay, most often on account of insomnia.