Heart : official journal of the British Cardiac Society
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Multicenter Study Comparative Study
Extremely cold and hot temperatures increase the risk of ischaemic heart disease mortality: epidemiological evidence from China.
To examine the effects of extremely cold and hot temperatures on ischaemic heart disease (IHD) mortality in five cities (Beijing, Tianjin, Shanghai, Wuhan and Guangzhou) in China; and to examine the time relationships between cold and hot temperatures and IHD mortality for each city. ⋯ Results indicate that both extremely cold and hot temperatures increase IHD mortality in China. Each city has its characteristics of heat effects on IHD mortality. The policy for response to climate change should consider local climate-IHD mortality relationships.
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Comparative Study
Surgical outcomes of severe tricuspid regurgitation: predictors of adverse clinical outcomes.
Although recent studies contributed to an improved understanding of the prognosis of patients undergoing tricuspid valve (TV) surgery, the data are limited to certain causes of tricuspid regurgitation (TR) or types of surgery. ⋯ Long-term survival after TV surgery for severe TR was affected by several preoperative factors including advanced heart failure symptom, comorbidity, end-organ dysfunction and laboratory abnormalities, but not by the type of surgery or causes of TR.
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Comparative Study
Impaired endothelial function in persons with obstructive sleep apnoea: impact of obesity.
Obstructive sleep apnoea (OSA) and obesity are both associated with endothelial dysfunction, which precedes the development of atherosclerosis. As obesity is highly prevalent in OSA, we wanted to test the hypothesis that OSA is associated with endothelial dysfunction independently of obesity. ⋯ OSA is associated with endothelial dysfunction independently of obesity and conventional risk factors.