Heart rate variability is an indicator for intradialytic hypotension among chronic hemodialysis patients

Abstract

HRV is a useful indicator for IDH among hemodialysis patients.

Heart rate variability as an independent predictor for 8-year mortality among chronic hemodialysis patients

“…Taken all the HRV indices together, we could emphasize the importance of the ability to increase ANS, including sympathetic and parasympathetic activity in response to any stimulus 16 , whereas the increase of sympathetic activities is more significant than parasympathetic activities among both components of ANS. Since sympathetic and parasympathetic activities play a "growth and decline" fashion in ANS.…”

“…The baseline characteristic information, including demographic data, comorbid diseases, laboratory tests, and medications, were obtained from patients' medical charts at enrollment. The details of performing HRV measurement and obtaining patients' information were clearly stated in our previous work 16,17 . After the enrollment and HRV measurements, these participants were continuously followed for eight years until August 2018.…”

“…In this point of view, the work of Chen et al 15 was constructive and worthy of more attention. However, the real dynamic changes of HRV during the hemodialysis process are likely to be a "reverse V-shape, " which denotes "increase at the initial stage but decreases at a later stage [16][17][18] . The HRV measurements at two time-points before and after hemodialysis could not demonstrate the real dynamic changes of HRV during the hemodialysis.…”

Relationship between blood pressure response during hemodialysis and exercise tolerance or heart rate recovery measured using cardio-pulmonary exercise testing in maintenance hemodialysis patients

“…Autonomic dysfunction is highly prevalent in HD patients [24] and has been implicated in the increased risk of blood pressure instability during HD [17,25]. Indeed, this study showed that the HRR, which reflects parasympathetic activation, was associated with blood pressure instability during HD.…”

The vicious cycle of intradialytic hypotension, inflammation and myocardial Stunning: overview of pathophysiological aspects

“…Pelosi et al [51] and Barnas et al [44] speculate that SNS failure represents a major pathogenetic mechanism in IDH; whereas Rubinger et al [52] emphasize on left ventricular diastolic dysfunction as the major cause of hemodynamic instability. In total, dysautonomy plays a crucial role in IDH presence in patients with concomitant failure of other compensatory mechanisms [53,54]. Cavalcanti et al implicate both dysautonomy and left ventricular diastolic dysfunction into IDH pathogenesis and also suggest SNS assessment as a prevention measure for IDH and cardiovascular dysfunction [27].…”