Interventional atrioseptostomy by application of monopolar high-frequency alternating current. In vitro evaluation of a new device
| Autor: | Andreas Franke, H. J. Vanopbroeke, S. Handt, P. Osypka, R. G. Grabitz, G von Bernuth, Marie-Christine Seghaye |
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| Rok vydání: | 1997 |
| Předmět: |
medicine.medical_specialty
Swine medicine.medical_treatment Catheter ablation In Vitro Techniques Atrial septal defects law.invention law Internal medicine medicine Heart Septum Animals Radiology Nuclear Medicine and imaging New device Heart Atria Foramen ovale (heart) Heart septal defect business.industry Heart Septal Defects General Medicine medicine.disease Heart septum Catheter medicine.anatomical_structure Cardiology Catheter Ablation Alternating current business Biomedical engineering |
| Zdroj: | Investigative radiology. 32(2) |
| ISSN: | 0020-9996 |
| Popis: | RATIONALE AND OBJECTIVES The authors evaluate the use of a new device for interventional creation of atrial septal defects (ASD) working with high-frequency alternating current in an in vitro study with porcine atria. METHODS The device consists of a symmetrical cage of six superelastic monofile wires, including a microthermistor that is placed via a catheter into a punctured hole in the porcine foramen ovale. The device is used as a differential electrode for monopolar, temperature-controlled application of high-frequency alternating current for thermal modelling of ASD. RESULTS Application of current for 60 seconds caused temperature-dependent, sized ASDs. CONCLUSION In vivo animal studies to evaluate possible side effects and long term patency of the ASDs are justified and warranted. |
| Databáze: | OpenAIRE |
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