Minimalinvaziv aortabillentyu-beultetes soran nyert kezdeti tapasztalataink / Minimálinvazív aortabillentyu-beültetés során nyert kezdeti tapasztalataink

Introduction: Due to the aging population, aortic valve stenosis is the most frequently diagnosed acquired cardiac disease amongst adults. Various surgical techniques have been developed and median sternotomy has become the standard practice for exploration. Improvements in cardiological intervention techniques allow surgery to provide the same quality with less invasiveness.Objective: Our aim was to compare the results of the isolated aortic valve surgeries (AVR) performed as either full or partial sternotomy during the study period in terms of pre-, intra-, and postoperative variables.Patients and methods: We examined the results of the isolated AVR performed at Gottsegen National Cardiovascular Center between January 2019 and March 2020 (99 AVR and 151 mini-AVR). During mini-AVR we opened the sternum with J shape ministernotomy up to the 3rd or 4th intercostal space while in median sternotomy we separated the sternum in its total length.Results: Blood consumption (unit) (AVR: 2.90 [2.90]; mini-AVR: 1.85 [2.12]; p<0,05), days of hospitalization (AVR: 9.75 [2.99]; mini-AVR: 8.85 [2.85]; p<0,05) and length of surgery (minutes) (AVR:148.49 [34.4]; mini-AVR: 134.6 [34.8]; p<0,05) were significantly better in the mini-AVR group. In terms of preoperative variables, the two groups were not homogeneous therefore we corrected the strong predictive variables. As a result, levels of bio-statistical significance have disappeared but there is still a trend in favour of minimally invasive surgery.Conclusions: Mini-AVR surgery is considered a more cost-effective intervention compared to standard surgery in terms of less surgical trauma, reduced blood consumption, and shorter operative time.

The utility of the combination of the corrosion cast method and post mortem MSCT scans.

A careful post-mortem investigation is needed to determine the cause of death of patients bearing coronary stents and to describe complications of stent implantation. The main purpose of this study was to combine post mortem methods of CT angiography and corrosion cast preparation for the visualization of coronary stenoses, coronary stents, instent restenosis, and stent occlusion. Injection-corrosion method was combined with post-mortem MSCT angiography to characterize the pathomorphological changes after stent implantation in 6 male cadaver hearts. Multi-slice computed tomography was employed to visualize the coronary artery system. For image post processing, multiplanar reconstructions, maximal intensity projections and three dimensional reconstructions were used. This study was assessing the feasibility of post mortem MSCT for intracoronary stent evaluation. We described a method for characterization of the coronary side branch stenosis caused by stent implantation. Post mortem CT imaging proved to be a feasible and highly reproducible technique for the characterization of pathological changes in the coronary system.