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[Study of parameters of central hemodynamics in patients during hemodialysis]
Insights
Hemodialysis significantly reduces cardiac output (CO) and circulation blood volume (CBV). Patients experiencing adverse effects showed greater reductions in these vital cardiovascular parameters.
Area of Science:
- Cardiovascular Physiology
- Nephrology
- Medical Technology
Context:
- Hemodialysis is a critical treatment for end-stage renal disease.
- Understanding hemodynamic changes during dialysis is essential for patient management.
- Previous studies have indicated potential alterations in fluid balance and cardiac function.
Purpose:
- To investigate the dynamic changes in cardiac output (CO) and circulation blood volume (CBV) during hemodialysis.
- To correlate these hemodynamic changes with patient-reported well-being.
- To assess the efficacy of electroimpedance indicators in measuring these parameters.
Summary:
- A study involving 31 patients (42 sessions) examined CO and CBV before and after hemodialysis.
- Significant reductions in both CO and CBV were observed post-hemodialysis.
- In patients feeling unwell, CO decreased by over 30% in 7 individuals, with further reductions in CBV and CO noted in others.
Impact:
- Findings highlight the potential for significant hemodynamic compromise during hemodialysis.
- Suggests that monitoring CO and CBV could aid in identifying patients at risk of adverse events.
- Electroimpedance dilution method proves useful for tracking these critical cardiovascular indicators in real-time.
Abstract:
The article discusses the results of study of the cardiac output (CO) and circulation blood volume (CBV) in patients at the beginning and end of hemodialysis. The dynamics of changes of these parameters during hemodialysis was studied in 31 patients (42 sessions). The CO and CBV reduced significantly. In a group of 10 patients who felt worse, the CO reduced by more than 30 per cent in 7, the CBV diminished by 25 and 30 per cent in 2, and CBV and CO reduced by more than 30 per cent in 1 patient in relation to the initial level. The CO and CBV were measured by means of the method of dilution of electroimpedance indicators.