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Effect of hemodialysis on left atrial function in patients with end-stage renal failure evaluated by two-dimensional speckle tracking imaging.
Echocardiography 2024 Februrary
OBJECTIVE: We sought to evaluate the left atrial (LA) strain parameters of maintenance hemodialysis (MHD) patients before and after dialysis by two dimensional speckle tracking imaging (2D-STI), and to explore the effect of volume load change on LA function.
METHODS: Seventy-six patients with end stage renal disease (ESRD) on hemodialysis (HD) were enrolled in the study protocol. The median duration of dialysis was 24.0 (7.5, 59.5) months. In addition, 30 healthy subjects were selected as control group. Comprehensive echocardiography was performed immediately before and after hemodialysis to compare the changes in left atrial function.
RESULTS: Regarding LA strain parameters in patients of pre-HD, the median (25th, 75th) LA reservoir, LA conduit, and LA contractile reserve were 28.0 (23.0, 34.5), -15.5 (-10.0, -21.5), -12.0 (-9.0, -16.0) respectively; the post-HD were 26.0 (21.0, 29.0), -12.0 (-9, -15.5), -12.5 (-9, -15.5) respectively; and controls were 43.0 (36.0, 48.0), -24.0 (-18.0, -32.0), -17.0 (-15.0, -22.0) respectively. The left atrial strain parameters before HD were lower than controls, the differences were statistically significant, the p-value were .000, .025, and .000, respectively. The reservoir function and conduit function of LA strain decreased after hemodialysis, the differences were statistically significant, the p-value were .003 and .006, respectively. Regarding the contraction of LA, the differences between pre- and post-HD were not statistically significant (p = .965).
CONCLUSION: Hemodialysis removes excess water in human body, while LVGLS and Doppler parameters are greatly affected by reduced preload. New echocardiographic parameters, such as left atrial strain, can quantitatively evaluate the changes in left atrial function before and after hemodialysis in ESRD patients, which can provide valuable information for the overall cardiac evaluation in this specific population.
METHODS: Seventy-six patients with end stage renal disease (ESRD) on hemodialysis (HD) were enrolled in the study protocol. The median duration of dialysis was 24.0 (7.5, 59.5) months. In addition, 30 healthy subjects were selected as control group. Comprehensive echocardiography was performed immediately before and after hemodialysis to compare the changes in left atrial function.
RESULTS: Regarding LA strain parameters in patients of pre-HD, the median (25th, 75th) LA reservoir, LA conduit, and LA contractile reserve were 28.0 (23.0, 34.5), -15.5 (-10.0, -21.5), -12.0 (-9.0, -16.0) respectively; the post-HD were 26.0 (21.0, 29.0), -12.0 (-9, -15.5), -12.5 (-9, -15.5) respectively; and controls were 43.0 (36.0, 48.0), -24.0 (-18.0, -32.0), -17.0 (-15.0, -22.0) respectively. The left atrial strain parameters before HD were lower than controls, the differences were statistically significant, the p-value were .000, .025, and .000, respectively. The reservoir function and conduit function of LA strain decreased after hemodialysis, the differences were statistically significant, the p-value were .003 and .006, respectively. Regarding the contraction of LA, the differences between pre- and post-HD were not statistically significant (p = .965).
CONCLUSION: Hemodialysis removes excess water in human body, while LVGLS and Doppler parameters are greatly affected by reduced preload. New echocardiographic parameters, such as left atrial strain, can quantitatively evaluate the changes in left atrial function before and after hemodialysis in ESRD patients, which can provide valuable information for the overall cardiac evaluation in this specific population.
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