Validation of a new impedance cardiography device for noninvasive hemodynamic measurement in outpatient hypertensive patients
Objective: To compare the new cardiograph ZLogic for non-invasive measurements of Stroke volume (SV) and Cardiac output (CO) against the Minnesota cardiograph. Methods: 86 subjects from both genders, 18-80 years old, hypertensive and healthy volunteers were included. Three hemodynamic meas...
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| Autores principales: | , , , , , , , , |
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| Formato: | Artículo revista |
| Lenguaje: | Español |
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Universidad Nacional Córdoba. Facultad de Ciencias Médicas. Secretaria de Ciencia y Tecnología
2025
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| Materias: | |
| Acceso en línea: | https://revistas.unc.edu.ar/index.php/med/article/view/45253 |
| Aporte de: |
| Sumario: | Objective: To compare the new cardiograph ZLogic for non-invasive measurements of Stroke volume (SV) and Cardiac output (CO) against the Minnesota cardiograph. Methods: 86 subjects from both genders, 18-80 years old, hypertensive and healthy volunteers were included. Three hemodynamic measurements performed with each device, in an alternate fashion, using the Bland-Altman method to determine the level of agreement. Percentage error was calculated for interchangeability of both methods. Results: Mean SV was 86.71±27.35 mL and mean CO 5.42±1.74 L/min. There was a strong correlation between measures of SV and CO obtained with both devices (r=0.99, p<0.001). Mean difference (MD) for SV was 0.65±3.08 mL (CI95%: -0.01-1.31) and 95% limits of agreement −5.39 to +6.69 mL. MD for CO was 0.05±0.17 L/min (CI95%: 0.01-0.09) and the 95% limits of agreement −0.28 to +0.38 L/min.
Conclusion: ZLogic and Minnesota cardiographs provided equivalent SV and CO values in ambulatory hypertensive patients. |
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