Background Aortic stenosis (AS) leads to variable stress for the left ventricle (LV) and consequently a broad range of LV remodeling. Study aim was to describe blood flow patterns in the ascending aorta of AS patients and determine their association with remodeling. Methods and Results Thirty-seven patients with AS (14 mild, 8 moderate, 15 severe; age 63±13 years) and 37 healthy controls (age 60±10 years) underwent 4D-flow MRI. Helical and vortical flow formations and flow eccentricity were assessed in the ascending aorta. Normalized flow displacement from the vessel center and peak systolic wall shear stress (WSSpeak) in the ascending aorta were quantified. LV remodeling was assessed based on LV mass index (LVMI-I) and the ratio of LV mass to enddiastolic volume (relative wall mass; RWM). Marked helical and vortical flow formation and eccentricity were more prevalent in patients with AS than in healthy subjects, and AS patients exhibited an asymmetric and elevated distribution of WSSpeak. In AS, aortic orifice area was strongly negatively associated with vortical flow formation (p=0.0274), eccentricity (p=0.0070) and flow displacement (p=0.0021). Bicuspid aortic valve was associated with more intense helical (p=0.0098) and vortical flow formation (p=0.0536), higher flow displacement (p=0.11) and higher WSSpeak (p=0.0926). LVM-I and RWM were significantly associated with aortic orifice area (p=0.0611, p=0.0058) and flow displacement (p=0.0058, p=0.0283). Conclusions In this pilot study, AS leads to abnormal blood flow pattern and WSSpeak in the ascending aorta. In addition to aortic orifice area, normalized flow displacement was significantly associated with LV remodeling.
Background Aortic stenosis (AS) can lead to highly variable stress for the left ventricle (LV) and consequently a broad range of LV remodeling. We hypothesize that changes in aortic blood flow caused by AS can contribute to cardiac afterload. The aim of this study was to describe the blood flow patterns in the ascending aorta in patients with AS and to determine its association with LV remodeling. Methods Thirty-seven patients with AS (14 mild, 8 moderate, 15 severe, age 63 ± 13 years) and 37 healthy, age-and gendermatched controls (age 60 ± 10 years) were prospectively
Abstract. Violence and abuse in competitive sports, such as physical and emotional abuse, physical and emotional neglect and sexual abuse, affect children, adolescents and adults alike and lead to severe physical, psychological and social consequences. In current medical and educational care concepts of athletes, there is a lack of consistent integration of sports/psychiatric, clinical psychological and psychotherapeutic, developmental pediatric and developmental psychological expertise. Problem areas arise from fine lines between harassment, non-physical and physical violence. The present position paper includes recommendations for the development of a concept for the protection of mental health in competitive sports and for coping with mental stress and psychological disorders by qualified medical experts in mental health, i.e., child, adolescent and adult psychiatrists with specific expertise in competitive sports: sports psychiatrists. According to the recommendations, experts should also have and further develop competence in other fields, especially in ethics, child protection, protection against violence and abuse in competitive sports, awareness of and dealing with transgression of boundaries, knowledge about child development, and transparency in training structures and relationships.
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