A5075387904- Cardiac Valve Diseases and Treatments
- Cardiac and Coronary Surgery Techniques
- Aortic Disease and Treatment Approaches
- Surgical Simulation and Training
- Aortic aneurysm repair treatments
- Infective Endocarditis Diagnosis and Management
- Anatomy and Medical Technology
- Cardiac Structural Anomalies and Repair
- Coronary Interventions and Diagnostics
- Organ Transplantation Techniques and Outcomes
- Cardiac tumors and thrombi
- Liver Disease and Transplantation
- Cardiac, Anesthesia and Surgical Outcomes
- Mechanical Circulatory Support Devices
- Infrastructure Maintenance and Monitoring
- Coronary Artery Anomalies
- Orthopaedic implants and arthroplasty
- Phonocardiography and Auscultation Techniques
- Cardiac Ischemia and Reperfusion
- Acute Myocardial Infarction Research
- Clinical Nutrition and Gastroenterology
RWTH Aachen University
2016
Maastricht University Medical Centre
2014-2016
Maastricht University
2015-2016
Morriston Hospital
2013-2015
Swansea University
2015
We report a technique of multidimensional modeling and 3D printing in preplanning Type A acute aortic dissection (TAAD) repair. doi: 10.1111/jocs.12772 (J Card Surg 2016;31:441–445)
The mitral valve (MV) is a complex three-dimensional (3D) intracardiac structure. 3D transthoracic and transoesophageal echocardiography are used to evaluate describe the changes in apparatus due degenerative or functional regurgitation. These techniques are, however, not accurate enough capture dynamic during cardiac cycle. We novel multistage modelling (MSM) technique, using (3D TOE), visualize quantify MV all phases of cycle.Using TOE, sets images were obtained from 32 individuals who...
Acute type A aortic dissection (TAAD) is a life-threatening emergency and requires immediate surgical intervention. We propose novel finite element multi-dimensional modelling (FE-MDM) technique to identify tears preoperatively aid preplanning.Thirty-two patients with TAAD were included in this retrospective study. Computed tomography (CT) scans imported using the segmentation software reconstruction resulted of single components: wall, false lumen, true gap flap blood both lumens. CT...
We evaluated the influence of intra-aortic balloon size and volume on mesenteric renal flows.Thirty healthy swine underwent 120-minute ligation left anterior descending coronary artery followed by 6 hours reperfusion. Then, they were randomly assigned to following five groups animals, with six animals in each group: no pump (IABP), a short 35-mL IABP, 40-mL long IABP IABP. Superior (SMA) flows measured at baseline (t0), 2-hour ischemia (t1) every hour thereafter until reperfusion (from tR1...
Current training in mitral valve (MV) surgery is affected by many factors, among which are the complexity of surgical procedures and complex three-dimensional anatomy MV. An MV repair simulator proposed this study as a low-cost, reusable portable tool to guide trainees at all levels effectively construct it with aim improving their skills major techniques an intermediate-fidelity concept. The self-made box that supplied silicone substitute simulate flexible property components. building...
The technical simulator proposed in this study is a low-cost, reusable, reproducible and portable tool to guide trainees at all levels order improve their surgical skills connection with the cardiopulmonary bypass (CPB) circuit. self-made box that can be used for an unrestricted number of procedures. It supplied anatomical replicas have been tested simulate flexible property real anatomy. building process detailed study.
We report a technique of multidimensional modeling (MDM) used to assist in the planning repair dissecting ventricular septal hematoma (DVSH) following David procedure. doi: 10.1111/jocs.12757 (J Card Surg 2016;31:390–393)
Objectives: To clarify the terms surrounding posterior aortic root enlarging incisions and correlate them anatomically. Methods: This is a human cadaveric heart study in which measurements were taken along path of named 42 normal congenitally malformed hearts using calipers. Results: Our results indicate that there variable overlap left atrial wall with anterior mitral leaflet aorta individual cases it may not be possible to accurately predict possibility without opening atrium, though some...
Background Presently the training in tricuspid valve (TV) surgery is difficult due to limited exposure of TV, 3D complexity TV components and repair procedures. Therefore we propose a portable simulator for cardiac trainees junior surgeons be proficient surgical techniques minimize learning curve. The can used an unrestricted number It made with lowest possible fidelity focusing on availability cost-containment exercise.
Objectives: Morbus Barlow is a complex pathology of mitral valve (MV), which needs sophisticated surgical repair. We propose novel method in creation 3D model the MV for this to facilitate planning. Methods: obtained images using transoephageal echocardiography (3D TOE) with full measurements. Mid and late systole phases were selected during cardiac cycle. The sliced segmented computationally by open source software build STereoLithography (STL) file. file was sent printer print out model....
Methods The minimal invasive MV simulator was made from a model that placed inside box. is selfconstructed tested to simulate the flexible property of normal components. rings and valves were available materials, which have been used effectively in repair replacement. building process detailed this study. Total cost calculated Euros. number procedures performed on same recorded. Results Repetitive practising using leads establish basic techniques minimally environment e.g. handling...
Methods We performed different MV repair techniques using models in a dry lab and porcine hearts wet lab. The properties of materials used both were tested e.g tissue handling. possibility 3D construction normal pathological the ease examined. Availability, flexibility, portability, disposal remains cost organizing environments noted. number procedures on each model was recorded. Results self is only possible model, which will enhance understanding complexity components allows creation...
Methods The MV simulator was made from sponge with similar flexible properties to the normal components. PTFE chordae were used create primary during self-construction of model. Different models various pathologies constructed. New Artificial placed in pathological utilizing diverse methods e.g. locked suture, multi-loop, system technique, loop and pre-measured chords. Chordal length adjusted visual estimation leaflet coaptation test optimal outcome models. tying ways neochord on edge are...
Methods We used self-constructed models to simulate the aortic root. The related structures were constructed. Aortomitral angle of 120 degrees was created in models. performed three enlargement procedures 1. Manougian 2. Nicks 3. Nunez. and Nunez incisions made through commissure between left Non coronary cusps (NCC) where extended anterior leaflet Mitral Valve (AML) while stopped proximal annulus mitral valve. Nick’s incision carried out middle NCC also extending AML. Enlargements with a...
Topic: Immediate revascularisation in AMI is the treatment of 1stchoice. Pts without option for PCI – technical reasons or morphology coronary arteries can be treated by CABG to prevent myocardial necrosis. High risk still opposite discussed.