Heart failure & cardiomyopathies
The Kinocardiograph for Assessment of Fluid Status in Patients with Acute Decompensated Heart Failure
Authors' conclusion
KE measured with the KCG using SCG is highly responsive to changes in fluid status.
Study context
- Population
- Patients hospitalized with acute decompensated HF treated with IV diuretics
- Participants
- 11 patients
- Comparison
- Kinetic energy (KE) by Kinocardiograph (KCG) before vs after diuretic treatment
- Outcome
- Responsiveness of cardiac kinetic energy (KE) measured with the Kinocardiograph during treatment
- Follow-up
- Daily until discharge
Main finding
As reported in the abstract
Median KE (IQR), admission to discharge
| Group | Passive filling phase | Active filling phase | Passive/active ratio |
|---|---|---|---|
| Seismocardiographic (SCG) | 0.48 (0.39-0.60) to 0.69 (0.56-0.84), P = 0.026 | 0.38 (0.30-0.61) to 0.31 (0.09-0.47), P = 0.016 | 2.76 (1.68-5.30) to 5.02 (3.13-10.17), P = 0.006 |
| Ballistocardiographic (BCG) | 0.68 (0.46-0.73) to 0.68 (0.59-0.82), P = 0.062 | 0.29 (0.17-0.39) to 0.26 (0.20-0.34), P = 0.248 | 5.87 (3.57-7.55) to 5.27 (3.95-9.43), P = 0.790 |
Passive filling phase
Seismocardiographic (SCG)0.48 (0.39-0.60) to 0.69 (0.56-0.84), P = 0.026
Ballistocardiographic (BCG)0.68 (0.46-0.73) to 0.68 (0.59-0.82), P = 0.062
Active filling phase
Seismocardiographic (SCG)0.38 (0.30-0.61) to 0.31 (0.09-0.47), P = 0.016
Ballistocardiographic (BCG)0.29 (0.17-0.39) to 0.26 (0.20-0.34), P = 0.248
Passive/active ratio
Seismocardiographic (SCG)2.76 (1.68-5.30) to 5.02 (3.13-10.17), P = 0.006
Ballistocardiographic (BCG)5.87 (3.57-7.55) to 5.27 (3.95-9.43), P = 0.790
Further findings
Weight and inferior vena cava (IVC) diameter after diuretic treatment
- Median weight (IQR), kg
- 74.5 (67.6-98.7) to 73.3 (66.7-95.6), P = 0.003
- Median IVC diameter (IQR), cm
- 2.47 (2.33-2.99) to 1.78 (1.65-2.47), P = 0.03
Correlation of SCG KE changes with weight or IVC changes
- Non-significant correlations
Original publication
The Kinocardiograph for Assessment of Fluid Status in Patients with Acute Decompensated Heart Failure. ESC Heart Fail. Published 14 September 2023. doi:10.
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