The Journal of thoracic and cardiovascular surgery
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J. Thorac. Cardiovasc. Surg. · Feb 2022
New 3-zone hybrid graft: First-in-man experience in acute type I dissection.
Acute type I aortic dissection (AAD) represents a surgical emergency with time-dependent evolving complications. Frozen elephant trunk (FET) enables false lumen exclusion downstream but is still debated in AAD due to its greater dimension of surgery. To combine the benefits of fast proximal repair with the FET benefits, a 3-zone hybrid graft was developed consisting of an ascending polyester portion, an arch noncovered stent, and a descending stent graft. Mid-term results of this new technique are presented. ⋯ The goal to achieve fast and reliable repair of complicated type I AAD down to midthoracic level seems to be achievable. Noncovered stenting of the head vessel's origin does not cause stenosis or obstruction. A multicenter studying of this concept is next.
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J. Thorac. Cardiovasc. Surg. · Feb 2022
Protective effects of remote ischemic preconditioning against spinal cord ischemia-reperfusion injury in rats.
We aimed to investigate the protective effect of remote ischemic preconditioning against spinal cord ischemia and find a clue to its mechanism by measuring glutamate concentrations in the spinal ventral horn. ⋯ Our results showed that remote ischemic preconditioning prevented spinal cord ischemia-induced extracellular glutamate increase in ventral horn and suppressed N-methyl-D-aspartate receptor 2B subunit expression.
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J. Thorac. Cardiovasc. Surg. · Feb 2022
The Ross/Ross-Konno procedure in infancy is a safe and durable solution for aortic stenosis.
The objective of this study was to characterize early and midterm outcomes after the Ross/Ross-Konno procedure performed in infancy for severe aortic valve disease. ⋯ The neonatal and infant Ross/Ross-Konno procedure can be performed with low mortality and achieves a stable left ventricular outflow tract. Significant early morbidity reflects the preoperative condition of the patients but definitive surgery of this type can be considered as a primary approach.