공압식 박동형 심실보조장치의 공압관 내 압력 측정을 통한 박출량 추정
Estimation of Ventricular Assist Device Outflow with the Pressures in Air Pressure Line
2
조회
0
다운로드
0
인용
0
참고문헌
키워드
초록
A Ventricular assist device (VAD) is one of the most efficient treatments to raise the survivability of theend stage heart failure patient. However, some of LVAD patients have died for the failures and improper control ofLVAD. To detect critical dangers in LVAD, the monitoring methods of LVAD outflow have been requested, becauseit can be affected by patient’s hemodynamic states and abnormal conditions of LVAD. In the case of an external pulsatileLVAD, the air movement through the air line can be used to estimate LVAD outflow. In this study, the air movementin the air-line of the extracorporeal pulsatile LVAD was measured with a differential pressure sensor betweendifferent points. The precise estimation of air movement could be achieved by additional measurement of air pressure. In a series of in-vitro experiments, the LVAD outflow were changed according to the afterload of LVAD andthe differential pressure of LVAD didn’t have close correlation with the LVAD outflow that were measured with anultrasonic flowmeter at the same time. However, new precise estimation with the data from differential pressure andone point pressure in the air-line showed higher correlations with LVAD outflow.
Abstract
A Ventricular assist device (VAD) is one of the most efficient treatments to raise the survivability of theend stage heart failure patient. However, some of LVAD patients have died for the failures and improper control ofLVAD. To detect critical dangers in LVAD, the monitoring methods of LVAD outflow have been requested, becauseit can be affected by patient’s hemodynamic states and abnormal conditions of LVAD. In the case of an external pulsatileLVAD, the air movement through the air line can be used to estimate LVAD outflow. In this study, the air movementin the air-line of the extracorporeal pulsatile LVAD was measured with a differential pressure sensor betweendifferent points. The precise estimation of air movement could be achieved by additional measurement of air pressure. In a series of in-vitro experiments, the LVAD outflow were changed according to the afterload of LVAD andthe differential pressure of LVAD didn’t have close correlation with the LVAD outflow that were measured with anultrasonic flowmeter at the same time. However, new precise estimation with the data from differential pressure andone point pressure in the air-line showed higher correlations with LVAD outflow.
참고문헌 (11)
- M. C. Busch., "Asymptomatic Sustained Ventricular Fibrillation in a Patient With Left Ventricular Assist Device", Annals of Emergency Medicine, 57, pp.25~28 (2011)
- E. A. Rose., "Long-Term Use of a Left Ventricular Assist Device for End-stage Heart Failure", The New England Journal of Medicine, 345, pp.1435~1443 (2001)
- M. S. Slaughter., "The Role of Ventricular Assist Devices in Advanced Heart Failure", Rev Esp Cardiol, 65(11), pp.983~985 (2012)
- O. H. Frazier., "Use of the Jarvik 2000 Left Ventricular Assist System as a Bridge to Heart Transplantation or as Destination Therapy for Patients With Chronic Heart Failure", Annals of Surgery, 237, pp.631~637 (2003)
- P. M. Eckman., "Bleeding and thrombosis in patients with continuous-flow ventricular assist devices", American Heart Association, 125, pp.3038~3047 (2012)
- R. John., "The Biological Basis of Thrombosis and Bleeding in Patients with Ventricular Assist Device", Journal of Cardiovascular Translational Research, 2, pp.63~70 (2009)
- J. M. Tarbell., "Pulsed Ultrasonic Doppler Velocity Measurements Inside a Left Ventricular Assist Device", Journal of Biomechanical Engineering, 108, pp.232~238 (1986)
- M. S. Slaughter., "HeartWare Miniature Axial-Flow Ventricular Assist Device Design and Initial Feasibility Test", Texas Heart Institute Journal, 36, pp.12~16 (2009)
- M. S. Slaughter., "Intraoperative Evaluation of the HeartMate II Flow Estimator", The Journal of Heart and Lung Transplantation, 28, pp.39~43 (2009)
- S. W. Choi., "Venous Pressure Regulation During Pulsatile Extracorporeal Life Support", Artificial Organs, 32, pp.822~827 (2008)
- 강성민, "관형의 구조적 특징을 갖춘 박동형 관형 심실보조장치의 혈류, 혈압 평가", 대한기계학회논문집 B, 35(11), pp.1191~1198 (2011), 대한기계학회