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[Totally artificial training model for coronary heart surgery: the renunciation of animal experiments?]
Oliver Reuthebuch1, Dörthe Schmidt, Axel Lang
1Klinik für Herz- und Gefässchirurgie, UniversitätsSpital, CH-Zürich. oliver.reuthebuch@chi.usz.ch
Aim:
Animal protection laws will lead to stricter and more selective criteria thus resulting in a decline of available animals. Yet to train cardiac surgical skills a totally artificial training model was developed.
Description Of The Training Model:
The model is based on differently hardened polyurethane. Cover is a 1:1 replica of the human thoracic wall. Disposable coronaries are integrated in the heart-model. Vessels and part of the ascending aorta can be rinsed. By means of a newly designed air-pump stroke volume, heart-rate and rhythm can be adjusted.
Experiences:
Set-up of the model is easy and quick. Accustomed instruments can be used. Handling of artificial tissue is nature-like. Degree of difficulty is dependent on stroke volume, heart rate, arrhythmia, vessel-size and vessel-quality.
Conclusion:
The phantom helps to achieve confidence in coronary revascularisation. It facilitates an accompanying training for the less-trained as well as the skilled surgeon. The nature-like characteristics will help to reduce animal experiments in future.