The Journal of thoracic and cardiovascular surgery
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J. Thorac. Cardiovasc. Surg. · Aug 2019
Computed tomography-guided platinum microcoil lung surgery: A cross-sectional study.
The study objective was to provide a 5-year update on our tertiary-level institutional experience with computed tomography-guided platinum microcoil lung surgery. ⋯ Computed tomography-guided platinum microcoil lung surgery is safe with a favorable clinical adverse event profile and is suitable for poor-risk patients. The method is efficient, yielding 100% diagnostic localization in our 5-year update. It eliminates the need for thoracotomy and palpation to localize worrisome subpleural tiny nodules. It is ideal for the management of changing nodules concerning for early lung cancer and diagnosis of small indeterminate lung nodules or metastases.
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J. Thorac. Cardiovasc. Surg. · Aug 2019
Modeling conduit choice for valve-sparing aortic root replacement on biomechanics with a 3-dimensional-printed heart simulator.
The optimal conduit for valve-sparing aortic root replacement is still debated, with several conduit variations available, ranging from straight tubular grafts to Valsalva grafts. Benefits of neosinus reconstruction include enhanced flow profiles and improved hemodynamics. Curiously, however, some clinical data suggest that straight grafts may have greater long-term durability. In this study, we hypothesized that straight tubular grafts may help maintain the native cylindrical position of the aortic valve commissures radially, resulting in preserved leaflet coaptation, reduced stresses, and potentially improved valve performance. ⋯ Valsalva grafts and straight grafts perform equally well in terms of gross hemodyanics and coronary blood flow. Interestingly, however, the biomechanics of these 2 conduits differ considerably, with straight grafts providing increased radial commissural stability and leaflet coaptation. Further investigation into how these parameters influence clinical outcomes is warranted.
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J. Thorac. Cardiovasc. Surg. · Aug 2019
Using hepatitis C and B virus-infected donor organs for pediatric heart transplantation.
High-risk donors for patients with end-stage cardiac or pulmonary disease awaiting transplantation represent an opportunity for access to more organs and therefore can significantly decrease the waiting list mortality. The objective of this study is to investigate the use of hepatitis B virus core antibody positive or hepatitis C virus seropositive donors for pediatric heart transplantation. ⋯ The study has a small cohort to derive any significant conclusions, but the results are encouraging and consistent with the current trends among adult thoracic and pediatric kidney transplantation and demonstrates that hepatitis C virus positive and hepatitis B virus core antibody positive donors are not often used for pediatric heart transplantation.
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Esophageal dysmotility and gastroesophageal reflux disease are common in patients with advanced lung disease and can potentially affect outcomes of lung transplant; however, the effects of lung transplant on foregut function remain unknown. We assessed foregut function before and after bilateral lung transplant. ⋯ Esophageal motility and reflux parameters vary significantly between patients with obstructive lung disease and patients with restrictive lung disease, and can be explained by differences in underlying pulmonary dynamics. Restoring pulmonary physiology after lung transplant ameliorates the effects of esophageal dysmotility and reflux. Improved peristaltic vigor after lung transplant in patients with hypomotility is important, which may make them eligible for antireflux surgery if gastroesophageal reflux disease persists after lung transplant.
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J. Thorac. Cardiovasc. Surg. · Aug 2019
Challenging 30-day mortality as a site-specific quality metric in non-small cell lung cancer.
The objective of this project was to assess the best measure for postoperative outcomes by comparing 30-day and 90-day mortality rates after surgery for non-small cell lung cancer using the National Cancer Database. Secondarily, hospital performance was examined at multiple postoperative intervals to assess changes in ranking based on mortality up to 1 year after surgery. ⋯ Thirty-day mortality is the commonly accepted quality measure for thoracic surgeons; however, hospital rankings may be inaccurate if based on this variable alone. Mortality after 90 days appears to be a threshold after which there is less variability in hospital ranking and should be considered as an alternative quality metric in lung cancer surgery.