Reconstruction of right ventricular outflow tract stenosis and right ventricular failure after Ross procedure – comprehensive assessment of adult congenital heart disease with four-dimensional imaging: a case report

Takigami, Masao; Nakanishi, Naohiko; Morichi, Hiroko; Nishino, Teruyasu; Miyazaki, Shohei; Nakaji, Keisuke; Yamano, Michiyo; Kajiyama, Yo; Maeda, Yoshinobu; Matoba, Satoaki; Yamagishi, Masaaki

doi:10.1186/s13256-020-02414-9

Cited by 2 publications

(1 citation statement)

References 17 publications

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“…Therefore, for the concomitant assessment of hemodynamics and cardiac function, 4D flow MRI is considered as a promising tool for RV function and pulmonary valve disease. 82,83 Significant reduction in EL during both the systole and the diastole was observed in the postoperative state with a sufficiently smooth flow streamline without any flow acceleration or regurgitation (Fig. 7, unpublished data) in a bioprosthetic valve replacement case and in a RVOT reconstruction (RVOTR) case with a valved conduit.…”

Section: Parameter To Evaluate Flow Energy Loss Cause and Cardiac Wor...mentioning

confidence: 87%

Hemodynamic Parameters for Cardiovascular System in 4D Flow MRI: Mathematical Definition and Clinical Applications

Sekine

Yamagishi

Maeda

et al. 2022

MRMS

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Blood flow imaging becomes an emerging trend in cardiology with the recent progress in computer technology. It not only visualizes colorful flow velocity streamlines but also quantifies the mechanical stress on cardiovascular structures; thus, it can provide the detailed inspections of the pathophysiology of diseases and predict the prognosis of cardiovascular functions. Clinical applications include the comprehensive assessment of hemodynamics and cardiac functions in echocardiography vector flow mapping (VFM), 4D flow MRI, and surgical planning as a simulation medicine in computational fluid dynamics (CFD).For evaluation of the hemodynamics, novel mathematically derived parameters obtained using measured velocity distributions are essential. Among them, the traditional and typical parameters are wall shear stress (WSS) and its related parameters. These parameters indicate the mechanical damages to endothelial cells, resulting in degenerative intimal change in vascular diseases. Apart from WSS, there are abundant parameters that describe the strength of the vortical and/or helical flow patterns. For instance, vorticity, enstrophy, and circulation indicate the rotating flow strength or power of 2D vortical flows. In addition, helicity, which is defined as the cross-linking number of the vortex filaments, indicates the 3D helical flow strength and adequately describes the turbulent flow in the aortic root in cases with complicated anatomies. For the description of turbulence caused by the diseased flow, there exist two types of parameters based on completely different concepts, namely: energy loss (EL) and turbulent kinetic energy (TKE). EL is the dissipated energy with blood viscosity and evaluates the cardiac workload related to the prognosis of heart failure. TKE describes the fluctuation in kinetic energy during turbulence, which describes the severity of the diseases that cause jet flow. These parameters are based on intuitive and clear physiological concepts, and are suitable for in vivo flow measurements using inner velocity profiles.

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Section: Parameter To Evaluate Flow Energy Loss Cause and Cardiac Wor...mentioning

confidence: 87%

Hemodynamic Parameters for Cardiovascular System in 4D Flow MRI: Mathematical Definition and Clinical Applications

Sekine

Yamagishi

Maeda

et al. 2022

MRMS

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The effect of phased written health education combined with healthy diet on the quality of life of patients after heart valve replacement

Liu

Zhang

et al. 2021

J Cardiothorac Surg

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Background To observe the effect of phased written health education combined with healthy diet on the quality of life of patients after heart valve replacement. Methods One hundred-thirty patients who underwent heart valve replacement surgery in our hospital from January 2018 to January 2020 were enrolled as the research subjects. They were randomly divided into study group (65 patients, phased written health education combined with health Diet) and control group (65 cases, routine health education). The drug compliance and the degree of anticoagulant drugs knowledge were compared between the two groups in the first and second stage rehabilitation and the recovery stage. The health behavior ability and quality of life at different phases were also observed. Results During the first and the second stage rehabilitation, and the recovery stage, the drug compliance of the study group was superior to that of the control group, with statistical significance (P < 0.05). Meanwhile, the knowledge of anticoagulant drugs in the study group was better than that in the control group, with statistical significance (P < 0.05). Before intervention, there was no significant difference in health behavior ability and quality of life between the two groups (P > 0.05). The healthy behavior ability of study group for each stage was superior to the control group, the difference was significant (P < 0.05). The healthy behavior ability and quality of life showed the same results with statistical significance (P < 0.05). Conclusion The use of phased written health education combined with healthy diet in patients after heart valve replacement can effectively improve patients’ medication compliance, anticoagulant drugs knowledge, healthy behavior ability and quality of life at different stages, and is worthy of clinical application.

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Reconstruction of right ventricular outflow tract stenosis and right ventricular failure after Ross procedure – comprehensive assessment of adult congenital heart disease with four-dimensional imaging: a case report

Abstract: Background: Re-intervention after Ross procedure into the right ventricular outflow tract might be needed in patients in the long term. However, right ventricular outflow tract re-intervention indications are still unclear. Comprehensive assessment of total hemodynamics is needed.

Cited by 2 publications

References 17 publications

Hemodynamic Parameters for Cardiovascular System in 4D Flow MRI: Mathematical Definition and Clinical Applications

Hemodynamic Parameters for Cardiovascular System in 4D Flow MRI: Mathematical Definition and Clinical Applications

The effect of phased written health education combined with healthy diet on the quality of life of patients after heart valve replacement

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