Christina Spåbæk Jakobsen

Groin hematoma after electrophysiological procedures-incidence and predisposing factors

Abstract Objectives. We evaluated the incidence and predisposing factors of groin hematomas after electrophysiological (EP) procedures. Design. Prospective, observational study, enrolling consecutive patients after EP procedures (Atrial fibrillation: n = 151; Supraventricular tachycardia/Diagnostic EP: n = 82; Ventricular tachycardia: n = 18). Patients underwent manual compression for 10 min and 3 h post procedural bed rest. AF ablations were performed with INR 2–3, ACT > 300, and no protamine sulfate. Adhesive pressure dressings (APDs) were used if sheath size ≥ 10F; procedural time > 120 min; and BMI > 30. Patient-reported hematomas were recorded by a telephone follow-up after 2 weeks. Results. Hematoma developed immediately in 26 patients (10%) and after 14 days significant hematoma was reported in 68 patients (27%). Regression analysis on sex, age, BMI 25, ACT 300, use of APD, sheath size and number, and complicated venous access was not associated with hematoma, either immediately after the procedure or after 14 days. Any hematoma presenting immediately after procedures was associated with patient-reported hematomas after 14 days, odds ratio 18.7 (CI 95%: 5.00–69.8; P < 0.001). Conclusions. Any hematoma immediately after EP procedures was the sole predictor of patient-reported hematoma after 2 weeks. Initiatives to prevent groin hematoma should focus on the procedure itself as well as post-procedural care.

Towards doll based design: framework, guidelines and research potentials

Users are represented for many purposes and take many forms in design. This paper is concerned with potentials of representing users and use via dolls and doll play. The contribution of the paper serves as steppingstone for further investigations of Doll based design. The paper introduces a conceptual framework which offers design research a vocabulary for understanding and articulating two central aspects of Doll based design: perspective taking and role taking. The framework is developed through a case study and theoretical investigation in the fields of Psychology and Play theory. Based on the framework and case study, practitioners are offered two basic guidelines which support the initiation and continuing progress of Doll based design: endow the doll with a motive and be an empathetic facilitator. Moreover research potentials, based on the case and framework, highlight interesting future work.