[Possibilities of Doppler echocardiography application in a patient on program hemodialysis]

Area of Science:

• Nephrology
• Cardiology
• Medical Imaging

Background:

• Determining "dry weight" is crucial for hemodialysis patients to prevent fluid overload and complications.
• Left ventricular hypertrophy (LVH) is common in patients undergoing chronic hemodialysis.
• Intradialytic hypotension is a frequent complication during hemodialysis sessions.

Purpose of the Study:

• To evaluate the utility of Doppler echocardiography (echoCG) in assessing "dry weight" in hemodialysis (HD) patients.
• To explore the relationship between echocardiographic parameters and fluid status in HD patients.
• To identify echocardiographic predictors of intradialytic hypotension.

Main Methods:

• 43 hemodialysis patients were studied before and after dialysis sessions.
• M-mode and Doppler echocardiography were performed to assess cardiac structure and function.
• Key parameters measured included left ventricular mass index (LVMI), ejection fraction (EF), and transmitral flow dynamics (E, A, E/A, IVRT, DT).

Main Results:

• Left ventricular hypertrophy (LVH) was prevalent in 86% of patients.
• A significant positive correlation was found between ultrafiltration volume and the early filling wave velocity (deltaE).
• Patients experiencing intradialytic hypotension exhibited significantly prolonged early deceleration time (DT) compared to those without hypotension.

Conclusions:

• Doppler echocardiography, specifically early deceleration time (DT), can aid in "dry weight" assessment in hemodialysis patients with LVH.
• An increased early DT may indicate a higher risk of developing intradialytic hypotension.
• EchoCG parameters offer valuable insights into cardiovascular status and fluid management in hemodialysis patients.