Piergiorgio Tozzi

..One of the key steps in this procedure is the repair of the ventricle after catheter withdrawal. This study evaluates the reliability of a new device for sutureless and quick repair of the left ventricle access...

..We designed an animal study to compare the consistency of a sutureless repair of the left ventricle access using nitinol occluder with and without pericardial cuff on the ventricular side...

..Many sutureless anastomosis devices have been designed to facilitate the cardiovascular surgeon's work and the vascular join (VJ) is one of these. We designed an animal study to assess its reliability and long-term efficacy...

..Assess the benefit of temporary caval stenting for remote venous drainage during cardiopulmonary bypass (CPB)...

..This study was designed to evaluate the outcome of Contegra xenograft valved conduit (Contegra, Medtronic Inc, Minneapolis, MN)...

..Also, little progress has been made in venous cannula design in order to optimise venous return to the heart lung machine. We designed a self-expandable Smartcanula (SC) and analysed its performance capability using echocardiography...

..Preload ranged from 15 to 21 cm H20. The pump produced a maximal work of 16 x 10(-3) J. Maximal volume pumped was 492 ml/min. This artificial muscle pump is compact, and reproduces the hemodynamic performances of normal atrium...

..However, hemodynamic instability and other time related events correlated with negative outcome, are the main driving forces for accelerated diagnostic pathways..

..Seven days later the echocardiography showed acute severe aortic valve insufficiency. Intraoperatively we found a perforated leaflet probably due to lesion during transcatheter procedure...

..The aim of the present study is to evaluate a new self-expanding valved stent design for minimal invasive aortic valve implantation and its interference with coronary flow...

..We reviewed our surgery registry, to identify predictive risk factors for operative results, and to analyse the long-term survival outcome in octogenarians operated for primary isolated aortic valve replacement (AVR)...

..This artificial muscle pump is compact, follows the Starling law and reproduces the hemodynamic performances of a normal atrium. It could represent a new tool to restore the atrial kick in persistent atrial fibrillation...

....

....

..Possible clinical implications in patients with chronic AF are prevention of embolism of cardiac origin and avoidance of hemorrhagic complication due to chronic anticoagulation...

..The purpose of this paper was to evaluate myocardial and pulmonary effects of aqueous oxygen (AO) delivered directly into the pulmonary circulation in acute hypoxia...

..This study has been designed to assess the mechanical effects of a motorless pump on the right chambers of the heart in an animal model...

..The benefits of smart cannulation are obvious in remote cannulation for limited access cardiac surgery, but there are many other cannula applications where space is an issue, and that is where smart cannulation is most effective...

..Determine the usefulness of endovascular surgery for repair of aortic lesions late after open surgical repair...

..A., Lausanne, Switzerland) allowing for progressive occlusion/reopening of the device through a remote control at the wanted percentage of occlusion (adjustable pulmonary artery banding) underwent experimental evaluation...

..Further animal studies are underway to assess the long-term results. Following the same technical criteria, we are developing an end-to-side anastomotic device...

..05). This novel SS device evokes significantly lowered blood PFH and LDH values peri- and post CPB compared with the CTRL blood using a CS system. The SS may be a valuable alternative compared to traditional CS techniques...

..Postoperative distortion, malfunctioning, and paravalvular leaks were not detected...

....

..The objective of this study was to investigate the effects of chronic and intermittent hypoxia on myocardial morphology...

..The development of a standardized protocol permitted the validation of the TB for in vitro evaluation, measurement of the performances of the AM biVAD herein, and reproducibility of data...

..The tumor was successfully treated by surgical excision, and a diagnosis of myxoma was confirmed both clinically and pathologically...

..We have used it as an alternative to angiography in the endovascular thoracic aneurysm repair work-up...

..Special interest in this field (clinical and/or experimental) can enhance recruitment of patients. The opposite is also true.....

..The use of this prosthesis is justified for reducing early and late complications potentially associated with the modified Blalock-Taussig shunt, particularly distortion of the pulmonary arteries...

..An industrial test, the bulge-and-blister test, which is very convenient for measuring adhesion energy, is applied to the surgical field to quantify adhesion of bioadhesives...

..The transapical aortic valve implantation without angiography can prevent contrast-related complications...

..This study evaluated an experimental model of surgically induced unilateral pulmonary hypertension...

....

..The device required a power supply of 6 V, 250 mA. This could be the beginning of an era in which BMs integrate or replace the mechanical function of natural muscles...

..The patient quickly recovered from respiratory and cardiac failure. We believe pulmonary embolectomy is a reliable and effective procedure to treat this rare and dreadful complication of acrylic vertebroplasty...

..Coronary intravascular ultrasound can visualize intima-to-intima apposition and provide reliable calculations of anastomosis compliance...

..The following hospital course was uncomplicated. To our knowledge, this is the second case of SCAD treated successfully by LVAD and orthotopic heart transplantation reported in literature...

..This report provides an update of already commercially available low prime perfusion devices (e.g., the CORx integrated pump-oxygenator) as well as promising prototypes like the smart suction system and the smartcanula...

..A bench model reproducing the mechanical function of human atrium and human environment has been developed to assess the circulatory support that such a pump can provide...

..Nowadays, surgical excision of PFE remains, the treatment of choice for symptomatic patients with excellent short- and long-term results but recurrence of PFE following surgical excision has not been reported...

..To present a maneuver consisting of temporary blockage of the venous return to the heart for accurate deployment of thoracic aortic endoprostheses...

..The aim of this study was to investigate the feasibility of transventricular-transseptal approach (TVSA) for extrapleural trans-catheter aortic valved stent implantation via a subxyphoidian access...

..A possible reason is reoxygenation injury at the beginning of cardiopulmonary bypass. In this study we tested the hypothesis that reoxygenation of chronically hypoxic hearts is worse than that of normoxic hearts...

....

..The evidence of long-term graft patency is fundamental for any anastomotic device to become widely acceptable...

....

..CONCLUSIONS: Off-pump implantation of a self-expandable valved stent in the mitral position is technically feasible. Further studies will assess if this procedure is also feasible in humans...