Comparison of cardiac measurements on echocardiography in different region and ethnicity
Abstract：Objective The goal of the manuscript was to present the impact of difference region and ethnicity on echocardiographic measurements. Methods A representative sample of residents in Tibet was recruited using a multistage cluster random sampling method. Healthy Tibetans and healthy Han highlanders were drawn from the sample. We explore discrepancy of cardiac chamber diameters and function in healthy Han lowlanders versus healthy Tibetans,and healthy Han highlanders versus Tibetans. Results Healthy Tibetans have higher measurements of right ventricle,less diameters of aortic artery,pulmonary artery,left atrium and left ventricle in diastolic end,and lower left ventricular ejection fraction than healthy Han lowlanders after matching. Whereas,healthy Tibetans had similar cardiac chamber diameters and function with healthy Han highlanders,except main pulmonary artery,ascending aortic artery and tricuspid annular plane systolic excursion. Conclusion There is apparent difference in cardiac structure between Han lowlanders and Tibetans,little difference between healthy Han highlanders and Tibetans.
Keywords：High altitudeTibetanEchocardiograph
Publication Date：2017-01-01
Pages：3( 471-473 )