Interactive cardiovascular and thoracic surgery
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Interact Cardiovasc Thorac Surg · Apr 2016
Comparative StudyMedtronic Freestyle aortic bioprosthesis: a potential option for haemodialysis patients†.
End-stage renal disease patients on regular haemodialysis are at higher risk of calcification. Therefore, many surgeons have concerns regarding the implantation of bioprostheses in such patients. The haemodynamic advantages of stentless aortic bioprostheses support their use; however, these have not been studied yet in end-stage renal disease patients. We studied accordingly the early and mid-term outcomes of aortic valve replacement (AVR) using Medtronic Freestyle stentless aortic bioprostheses in this subset of patients in comparison with stented aortic bioprostheses. ⋯ Aortic bioprostheses are a good option for haemodialysis patients requiring AVR, offering acceptable mid-term survival. The Medtronic Freestyle aortic bioprostheses could allow the implantation of larger bioprostheses inferring consequently lower mean gradients, with a potentially higher resistance to calcification and sclerosis in haemodialysis patients.
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Interact Cardiovasc Thorac Surg · Apr 2016
Comparative StudyExtracorporeal membrane oxygenation as a bridge to lung transplantation: what lessons might we learn from volume and expertise?
We sought to evaluate the effect of centre volume on survival when extracorporeal membrane oxygenation (ECMO) is used as a bridge to lung transplantation (LTx). ⋯ Lowest volume centres have lowest survival and there exists a volume threshold at which better outcomes are achieved.
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Interact Cardiovasc Thorac Surg · Apr 2016
Case ReportsImportance of early detection of oesophageal complications after aortic stent graft repair.
Oesophageal complications after endovascular aortic stent repair are rare, but may lead to catastrophic consequences. Early detection is mandatory, but is sometimes difficult because of a lack of specific signs in the early stages. We report 2 cases with opposing results of oesophageal complications after aortic stent graft repair, and discuss the early signs of this disastrous complication and potential methods for early detection.
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Interact Cardiovasc Thorac Surg · Apr 2016
Observational StudyPerioperative optimal blood pressure as determined by ultrasound tagged near infrared spectroscopy and its association with postoperative acute kidney injury in cardiac surgery patients.
Perioperative blood pressure management by targeting individualized optimal blood pressure, determined by cerebral blood flow autoregulation monitoring, may ensure sufficient renal perfusion. The purpose of this study was to evaluate changes in the optimal blood pressure for individual patients, determined during cardiopulmonary bypass (CPB) and during early postoperative period in intensive care unit (ICU). A secondary aim was to examine if excursions below optimal blood pressure in the ICU are associated with risk of cardiac surgery-associated acute kidney injury (CSA-AKI). ⋯ Optimal blood pressure during CPB and in the ICU was correlated. Excursions below optimal blood pressure (AUC < OptMAP mmHgXh) during perioperative period are associated with CSA-AKI. Individualized blood pressure management based on cerebral autoregulation monitoring during the perioperative period may help improve CSA-AKI-related outcomes.
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Interact Cardiovasc Thorac Surg · Apr 2016
Multicenter StudySurvival and freedom from aortic valve-related reoperation after valve-sparing aortic root replacement in 1015 patients.
The aim of this study was to characterize mortality and aortic valve replacement after valve-sparing aortic root replacement (V-SARR) in a multicentre cohort. ⋯ Mid-term survival of patients after V-SARR is comparable with that of a matched general population. The regurgitant bicuspid aortic valve is a favourable substrate for V-SARR. Prophylactic surgery should be performed before symptoms or large aneurysms are present to achieve optimal mid-term outcomes.