Um sistema de ventrículo pulmonar produzindo pressão pulsátil em único ventrículo: modelo experimental A pulmonary ventricle system producing pulsatile pressure in single ventricle: experimental model
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Abstract
OBJECTIVE: Patients with functional single ventricle show bad survey, most of which result in cardiac failure even in the case that they are operated. The right heart bypass operations except for right atrium and right ventricle connections lack pulsatile pulmonary ventricle system besides the volume lack coming to the common ventricle. To solve the problem, we tried to create a pulmonary ventricle which produces pulsatile pressure experimentally. METHODS: We tried to form a right ventricle system which produces pulsatile pressure. The experimental model was carried on six sheep. The pressures of the created pulmonary ventricle, pulmonary artery and the left ventricle were measured after leaving the cardiopulmonary bypass. RESULTS: The mean of the systolic and diastolic pulmonary artery pressures were 15,6 ± 2.0 mmHg and 4.5 ± 1.5 mmHg. The mean of the left ventricular systolic pressure was mean 76.6 ± 4.4 mmHg. CONCLUSION: A ventricle producing pulsatile pressure is necessary for regulating the pulmonary artery flow with high central venous pressure and low non-pulsatile pulmonary pressure in the anomalies with functional single ventricles.
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emrecan2006umbrazilian
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| Authors | Emrecan, Bilgein;Kestelli, Mert;Yilik, Levent;Lafçi, Banu;Özsöyler, Ibrahim;Gürbüz, Ali;Özbek, Cengiz; |
| Journal | brazilian journal of cardiovascular surgery |
| Year | 2006 |
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