The Journal of thoracic and cardiovascular surgery
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J. Thorac. Cardiovasc. Surg. · Dec 2024
National Trends in Utilization of Transatrial Transcatheter Mitral Valve Replacement and Postoperative Outcomes.
Transatrial transcatheter mitral valve replacement reduces complexity during mitral valve replacements involving high-risk patients with mitral annular calcification. This study examines trends in transatrial transcatheter mitral valve replacement use and outcomes. ⋯ Mortality and major adverse cardiac events after transatrial transcatheter mitral valve replacement have decreased significantly in the contemporary era independent of changes in major patient and operative characteristics. Transatrial transcatheter mitral valve replacement will have a future role in patients with mitral annular calcification.
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J. Thorac. Cardiovasc. Surg. · Dec 2024
Randomized Controlled TrialRetraction Speed and Chronic Post-Sternotomy Pain: A Randomized Controlled Trial.
Approximately 30% of patients develop chronic poststernotomy pain (CPSP) following cardiac surgery with sternal retraction. Risk factors have been described but no causal determinants identified. Investigators hypothesized that opening the sternum slowly would impart less force (and thereby less nerve/tissue damage) and translate to a reduced incidence of CPSP. The main objectives were to determine whether or not slower sternal retraction would reduce the incidence of CPSP and improve health-related quality of life. ⋯ All outcomes were consistent with previous reports, but no clinically significant differences were observed with retraction speed.
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J. Thorac. Cardiovasc. Surg. · Dec 2024
Comparative StudyLongitudinal Versus Circumferential Biomechanical Behavior of the Aneurysmal Ascending Aorta.
We evaluate the independent effects of patient and aortic tissue characteristics on biaxial physiologic mechanical metrics in aneurysmal and nonaneurysmal tissues, and uniaxial failure metrics in aneurysmal tissue, comparing longitudinal and circumferential behavior. ⋯ Age was the strongest predictor of mechanical behavior. After adjusting for age, nonaneurysmal tissue was less deformable than aneurysmal tissue. Differences in longitudinal and circumferential mechanics contribute to tissue dysfunction and failure in ascending aneurysms. This highlights the need to better understand the effects of age, ascending aortic length, and thickness on clinical aortic behavior.
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J. Thorac. Cardiovasc. Surg. · Dec 2024
Efficacy and Safety of a Transaortic Approach to Midventricular and Apical Septal Myectomy.
The study objective was to evaluate the safety and efficacy of a transaortic approach to midventricular and apical septal myectomy in patients with hypertrophic cardiomyopathy with left ventricular outflow tract or midventricular obstruction. ⋯ Most patients undergoing septal myectomy for relief of obstruction required resection beyond the basal septum. With specialized instrumentation, detailed imaging and knowledge of variable septal anatomy, resecting midventricular and apical septal muscle can be safely and effectively achieved through a transaortic approach.