The Journal of thoracic and cardiovascular surgery
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J. Thorac. Cardiovasc. Surg. · Nov 2021
Use of patient-specific computational models for optimization of aortic insufficiency after implantation of left ventricular assist device.
Aortic incompetence (AI) is observed to be accelerated in the continuous-flow left ventricular assist device (LVAD) population and is related to increased mortality. Using computational fluid dynamics (CFD), we investigated the hemodynamic conditions related to the orientation of the LVAD outflow in these patients. ⋯ Using CFD simulations, we demonstrated that patients who developed de novo AI have greater rWSS at the aortic root, and their outflow grafts were placed closer to the aortic roots than those patients without de novo AI.
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J. Thorac. Cardiovasc. Surg. · Nov 2021
Comparative Study Observational StudyEquivalent 10-year angiographic and long-term clinical outcomes with saphenous vein composite grafts and arterial composite grafts.
We compared 10-year graft patency rates and long-term clinical outcomes after off-pump coronary artery bypass grafting using the saphenous vein composite grafts based on the left internal thoracic artery with those using total arterial composite grafts. ⋯ The saphenous vein composite grafts were equivalent to arterial composite grafts in terms of 10-year graft patency and long-term clinical outcomes.
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J. Thorac. Cardiovasc. Surg. · Nov 2021
Observational StudyMorphological and functional reserves of the right middle lobe: Radiological analysis of changes after right lower lobectomy in healthy individuals.
Remaining lung tissue after pulmonary resection can expand without decline in structural complexity and compensate for functional loss, showing morphological and functional reserves. However, the distribution of these reserves is unknown. This study examined the heterogeneity of morphological and functional reserves of the remaining lung tissue. ⋯ Morphological and functional changes in lung tissue remaining after pulmonary resection were heterogeneous. The right middle lobe demonstrated morphological and functional reserves after right lower lobectomy.