Good agreement between echocardiography and impedance cardiography in the assessment of left ventricular performance in hypertensive patients
Background: Impedance cardiography (ICG) is a noninvasive hemodynamic monitoring tool which can define hypertensive patients’ hemodynamic profiles and help to tailor antihypertensive therapy. This study assesses the concordance between ICG-derived indexes used to evaluate left ventricular performanc...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2018-07-01
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| Series: | Clinical and Experimental Hypertension |
| Subjects: | |
| Online Access: | http://dx.doi.org/10.1080/10641963.2017.1392558 |
| _version_ | 1797681393079156736 |
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| author | Rodrigo Nazário Leão Pedro Marques Da Silva Rita Marques Pocinho Marta Alves Daniel Virella Roberto Palma Reis |
| author_facet | Rodrigo Nazário Leão Pedro Marques Da Silva Rita Marques Pocinho Marta Alves Daniel Virella Roberto Palma Reis |
| author_sort | Rodrigo Nazário Leão |
| collection | DOAJ |
| description | Background: Impedance cardiography (ICG) is a noninvasive hemodynamic monitoring tool which can define hypertensive patients’ hemodynamic profiles and help to tailor antihypertensive therapy. This study assesses the concordance between ICG-derived indexes used to evaluate left ventricular performance and transthoracic echocardiography (TTE) in hypertensive patients. Methods: In this IMPEDDANS post-hoc analysis, the ICG-derived indexes are compared with TTE by Bland–Altman method. Statistical significance of the relationship between the values obtained was assessed by generalized linear mixed-effects models. Results: In supine position, Bland–Altman analysis showed good concordance for cardiac output (CO) (mean difference of 0.006 mL/min [−0.120; 0.133]), cardiac index (CI) (mean difference of 0.016 mL/min/m2 [−0.471; 0.504]), pre-ejection period (PEP) (mean difference of −0.216 ms [−4.510; 4.077]), left ventricular ejection time (LVET) (mean difference of −0.140 ms [−6.573; 6.293]), and systolic time ratio (STR) (mean difference of −0.00004 [−0.008; 0.008]). In orthostatic position, good concordance was found for CO (mean difference 0.028 mL/min [−2.036; 1.980]), CI (mean difference −0.012 mL/min/m2 [−1.063; 1.039]), and STR (mean difference −0.101 [0.296; 0.094]). No significant difference between methods was identified by the linear mixed-effects models. Conclusion: The ICG-derived indexes CO, CI, PEP, LVET, and STR in supine position have good agreement with TTE. Therefore, ICG can be used to accurately evaluate left ventricular performance. |
| first_indexed | 2024-03-11T23:44:17Z |
| format | Article |
| id | doaj.art-b6a7bc16b55b4594956f92018c8027c6 |
| institution | Directory Open Access Journal |
| issn | 1064-1963 1525-6006 |
| language | English |
| last_indexed | 2024-03-11T23:44:17Z |
| publishDate | 2018-07-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Clinical and Experimental Hypertension |
| spelling | doaj.art-b6a7bc16b55b4594956f92018c8027c62023-09-19T15:19:26ZengTaylor & Francis GroupClinical and Experimental Hypertension1064-19631525-60062018-07-0140546146710.1080/10641963.2017.13925581392558Good agreement between echocardiography and impedance cardiography in the assessment of left ventricular performance in hypertensive patientsRodrigo Nazário Leão0Pedro Marques Da Silva1Rita Marques Pocinho2Marta Alves3Daniel Virella4Roberto Palma Reis5Unidade Funcional Medicina 2, Hospital São José, Centro Hospitalar Lisboa Central-EPENOVA Medical School, Universidade NOVA de LisboaUnidade Funcional Medicina 2, Hospital São José, Centro Hospitalar Lisboa Central-EPEGabinete de Análise Epidemiológica e Estatística, Centro de Investigação, Centro Hospitalar de Lisboa Central-EPEGabinete de Análise Epidemiológica e Estatística, Centro de Investigação, Centro Hospitalar Lisboa Central-EPENOVA Medical School, Universidade NOVA de LisboaBackground: Impedance cardiography (ICG) is a noninvasive hemodynamic monitoring tool which can define hypertensive patients’ hemodynamic profiles and help to tailor antihypertensive therapy. This study assesses the concordance between ICG-derived indexes used to evaluate left ventricular performance and transthoracic echocardiography (TTE) in hypertensive patients. Methods: In this IMPEDDANS post-hoc analysis, the ICG-derived indexes are compared with TTE by Bland–Altman method. Statistical significance of the relationship between the values obtained was assessed by generalized linear mixed-effects models. Results: In supine position, Bland–Altman analysis showed good concordance for cardiac output (CO) (mean difference of 0.006 mL/min [−0.120; 0.133]), cardiac index (CI) (mean difference of 0.016 mL/min/m2 [−0.471; 0.504]), pre-ejection period (PEP) (mean difference of −0.216 ms [−4.510; 4.077]), left ventricular ejection time (LVET) (mean difference of −0.140 ms [−6.573; 6.293]), and systolic time ratio (STR) (mean difference of −0.00004 [−0.008; 0.008]). In orthostatic position, good concordance was found for CO (mean difference 0.028 mL/min [−2.036; 1.980]), CI (mean difference −0.012 mL/min/m2 [−1.063; 1.039]), and STR (mean difference −0.101 [0.296; 0.094]). No significant difference between methods was identified by the linear mixed-effects models. Conclusion: The ICG-derived indexes CO, CI, PEP, LVET, and STR in supine position have good agreement with TTE. Therefore, ICG can be used to accurately evaluate left ventricular performance.http://dx.doi.org/10.1080/10641963.2017.1392558echocardiographyimpedance cardiographyhypertensionleft ventricular performancesystolic time intervals |
| spellingShingle | Rodrigo Nazário Leão Pedro Marques Da Silva Rita Marques Pocinho Marta Alves Daniel Virella Roberto Palma Reis Good agreement between echocardiography and impedance cardiography in the assessment of left ventricular performance in hypertensive patients Clinical and Experimental Hypertension echocardiography impedance cardiography hypertension left ventricular performance systolic time intervals |
| title | Good agreement between echocardiography and impedance cardiography in the assessment of left ventricular performance in hypertensive patients |
| title_full | Good agreement between echocardiography and impedance cardiography in the assessment of left ventricular performance in hypertensive patients |
| title_fullStr | Good agreement between echocardiography and impedance cardiography in the assessment of left ventricular performance in hypertensive patients |
| title_full_unstemmed | Good agreement between echocardiography and impedance cardiography in the assessment of left ventricular performance in hypertensive patients |
| title_short | Good agreement between echocardiography and impedance cardiography in the assessment of left ventricular performance in hypertensive patients |
| title_sort | good agreement between echocardiography and impedance cardiography in the assessment of left ventricular performance in hypertensive patients |
| topic | echocardiography impedance cardiography hypertension left ventricular performance systolic time intervals |
| url | http://dx.doi.org/10.1080/10641963.2017.1392558 |
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