Reference Values and Distribution of Conventional Echocardiographic Doppler Measures and Longitudinal Tissue Doppler Velocities in a Population Free From Cardiovascular Disease

Abstract

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Long-Term Antihypertensive Treatment Fails to Improve E/e′ Despite Regression of Left Ventricular Mass

“…28 A potential explanation for the results of the present study is that long-term antihypertensive treatment may progressively reduce myocyte hypertrophy (as seen by an improvement in LVM), but may be less effective at preventing fibrosis or changes in cardiomyocyte stiffness. The mild deterioration in diastolic function of adequately treated hypertensive patients between phase 1 and 2 is of a similar magnitude to the expected decline associated with 2 years of ageing, 29,30 but the absence of an untreated hypertensive comparator group (for obvious ethical reasons) prevents any firm conclusion regarding whether the control of BP per se affects the time-dependent decline of diastolic function in hypertension. e′ in the amlodipine±perindopril-based regimen declined to a greater degree between phases which may be because, despite better early evolution of diastolic function in this group because of initial reductions in fibrosis, ageing and the associated changes still ultimately intervene.…”

Estimation of Right Ventricular Diastolic Function in Patients With Ischemic Heart Disease in Different Age Groups

“…На ЭхоКГ это про-является снижением раннего диастолического на-полнения ПЖ, повышением позднего наполнения ПЖ и снижением диастолических скоростей миокар-да в режиме тканевого Допплера [13]. Соответствен-но, отмечается существенное снижение как отноше-ния Еt/Аt, так и отношения e't/a't [16][17][18]. В настоя-щем исследовании схожие изменения данных пока-зателей выявлены в группе больных ИБС старше 60 лет по сравнению с пациентами более молодого возрас-та.…”

“…Так, при обследовании больных перед кардиохирургиче-скими операциями для выявления дисфункции ПЖ предложено использовать не только такие показате-ли, как систолическая скорость кольца ТК (s'<10 см/с) и изменение фракционной площади ПЖ (RVFAC <35%), но и изоволюмическая акселерация (isovolumic acceleration [≤1,8 м/с 2 ]) и напряжение стен-ки в 2D режиме (≥-17%) [27]. По-видимому, в ком-плексную оценку показателей диастолической функ-ции ПЖ должны быть включены не только показате-ли движения структур ПЖ [16,17], но и параметры, ха-рактеризующие его потоки наполнения. В настоящее работе, как и в опубликованных ранее исследованиях [18,24] оценивали скорость потока раннего наполнения ПЖ, в последнее время предложено оценивать вих-ревые потоки наполнения [28,29].…”

Adult echocardiographic nomograms: overview, critical review and creation of a software for automatic, fast and easy calculation of normal values

“…Pregnant or lactating women, athletes, and subjects addicted to alcohol were also excluded by a few authors (15,16,60), and some studies also evaluated smoking (15,21,38,82), anaemia and fever (15,16) as exclusion criteria. However, in some studies (15,19,38,43,52,54,63,82), inclusion criteria were well defined, in other sufficiently explained (20,21,24,30,50,52,61,67,70,74,76), while in few works the criteria were more generic (23,24,26,58,59,69,73).…”

“…The E wave deceleration time (EDT) has been shown to increase with age, while the E and E/A decreased with age (17,20,23,30,69). For tissue Doppler imaging (TDI) velocities a significant decrease in LV and RV function with age was noted authors (16,20,23,26) with a few discordance in particular for mitral valve a' wave. While a few studies (16,23) described an increase with age, other reported a decrease (20,30).…”