Atrioventricular junction ablation with permanent pacemaker implantation is a highly effective treatment approach in patients with atrial fibrillation and high ventricular rates resistant to other treatment modalities...Atrioventricular junction ablation with permanent pacemaker implantation is a highly effective treatment approach in patients with atrial fibrillation and high ventricular rates resistant to other treatment modalities, especially in the elderly or those with severe comorbidities. Compared with pharmacological therapy alone, the so-called ＂ablate and pace＂ approach offers the potential for more robust control ofven- tricular rate. Atrioventricular junction ablation and pacing strategy is associated with improvement in symptoms, quality of life, and exercise capacity. Given the close relationship between atrial fibrillation and heart failure, there is a particular benefit of such a rate control in patients with atrial fibrillation and reduced systolic fimction. There is increasing evidence that cardiac resynchronization therapy devices may be beneficial in selected populations after atrioventricular junction ablation. The present review article focuses on the current recommendations for atrioventricular junction ablation and pacing for heart rate control in patients with atrial fibrillation. The technique, the optimal implanta- tion time, and the proper device selection after atrioventricular junction ablation are also discussed.展开更多
Due to the industrialisation and rapid urbanisation after 1950＇s, housing demand has increased together with an insufficient housing production to meet the need in Turkey. As a consequence of the large deficit betwee...Due to the industrialisation and rapid urbanisation after 1950＇s, housing demand has increased together with an insufficient housing production to meet the need in Turkey. As a consequence of the large deficit between the annual housing demand and supply, squatter housing construction was the major means for shelter of low income families who can not have their place in the housing market as buyers. Squatter houses are located either on the peripheries of the cities or mostly outside of the urban boundaries on public land or illegally subdivided land by creating many physical, social and environmental problems. After 1990＇s, depending on the globalisation wind and neo-liberal policies that enriched the new elites who have new life styles, the housing capital focused on these group. After 1999 earthquake in Turkey, the fear of possible earthquake has also changed the housing preference as from the high-rise apartment buildings to the lower detached houses. As a consequence of this supply-demand chain, the private housing investment was directed to the gated communities which are isolated settlements with restricted access, so that public spaces are privatised or their use is prohibited or controlled on the edge of the metropoliten cities. These settlements also have physical and social problems. This paper will analyze the change of urban periphery, location and relation with the natural thresholds and the main transportation system of these settlements of Turkey in the light of literature review and some development plans and interview with real estate developers and users.展开更多
文摘Atrioventricular junction ablation with permanent pacemaker implantation is a highly effective treatment approach in patients with atrial fibrillation and high ventricular rates resistant to other treatment modalities, especially in the elderly or those with severe comorbidities. Compared with pharmacological therapy alone, the so-called ＂ablate and pace＂ approach offers the potential for more robust control ofven- tricular rate. Atrioventricular junction ablation and pacing strategy is associated with improvement in symptoms, quality of life, and exercise capacity. Given the close relationship between atrial fibrillation and heart failure, there is a particular benefit of such a rate control in patients with atrial fibrillation and reduced systolic fimction. There is increasing evidence that cardiac resynchronization therapy devices may be beneficial in selected populations after atrioventricular junction ablation. The present review article focuses on the current recommendations for atrioventricular junction ablation and pacing for heart rate control in patients with atrial fibrillation. The technique, the optimal implanta- tion time, and the proper device selection after atrioventricular junction ablation are also discussed.
文摘Due to the industrialisation and rapid urbanisation after 1950＇s, housing demand has increased together with an insufficient housing production to meet the need in Turkey. As a consequence of the large deficit between the annual housing demand and supply, squatter housing construction was the major means for shelter of low income families who can not have their place in the housing market as buyers. Squatter houses are located either on the peripheries of the cities or mostly outside of the urban boundaries on public land or illegally subdivided land by creating many physical, social and environmental problems. After 1990＇s, depending on the globalisation wind and neo-liberal policies that enriched the new elites who have new life styles, the housing capital focused on these group. After 1999 earthquake in Turkey, the fear of possible earthquake has also changed the housing preference as from the high-rise apartment buildings to the lower detached houses. As a consequence of this supply-demand chain, the private housing investment was directed to the gated communities which are isolated settlements with restricted access, so that public spaces are privatised or their use is prohibited or controlled on the edge of the metropoliten cities. These settlements also have physical and social problems. This paper will analyze the change of urban periphery, location and relation with the natural thresholds and the main transportation system of these settlements of Turkey in the light of literature review and some development plans and interview with real estate developers and users.
