[EngO2-1] Significance of intra aortic balloon pump in increasing the blood flow to the abdominal organs
【
ライブ配信】
Objective: Intra aortic balloon pump (IABP) is conventionally used for hemodynamic support in patients with low cardiac output syndrome (LOS). Primary roles of IABP are systolic unloading to left ventricle and diastolic augmentation to increase perfusion to the coronary arteries. However, influence on the perfusion to the abdominal organs is still unclear. In this study, we evaluated the perfusion volume to the abdominal organs by echography at the timing with and without IABP support.
Methods: From July 2016 to July 2018, 22 patients requiring IABP support for LOS were included in the cohort (male; 13, mean age; 74 years). Stroke volume / beat (area × velocity time integral) was measured at the left ventricular outflow tract (LVOT), abdominal aorta, celiac artery, superior mesenteric artery, right and left renal arteries by echography at the timing with and without IABP support (1:1).
Results: During IABP support, perfusion flow pattern changed to biphasic wave. Stroke volume significantly increased under IABP support, compared to the timing without IABP support at the abdominal aorta (37.8±22.1 ml vs. 23.1±14.3 ml; p<0.001), celiac (11.9±10.6 ml vs. 9.6±10.0 ml; p=0.001), superior mesenteric (10.2±5.1 ml vs. 7.7±3.7 ml; p<0.001), and left renal arteries (5.0±2.4 ml vs. 3.1±2.0 ml; p=0.004). There were no significant changes in stroke volume between the timing with and without IABP support at the left ventricular outflow tract (57.3±22.8 ml vs. 55.1±14.5 ml; p=0.025) and right renal artery (4.7±2.9 ml vs. 3.9±2.4 ml; p=0.17).
Conclusion: IABP support significantly increased stroke volume of the abdominal aorta, celiac, superior mesenteric, and left renal arteries.
Methods: From July 2016 to July 2018, 22 patients requiring IABP support for LOS were included in the cohort (male; 13, mean age; 74 years). Stroke volume / beat (area × velocity time integral) was measured at the left ventricular outflow tract (LVOT), abdominal aorta, celiac artery, superior mesenteric artery, right and left renal arteries by echography at the timing with and without IABP support (1:1).
Results: During IABP support, perfusion flow pattern changed to biphasic wave. Stroke volume significantly increased under IABP support, compared to the timing without IABP support at the abdominal aorta (37.8±22.1 ml vs. 23.1±14.3 ml; p<0.001), celiac (11.9±10.6 ml vs. 9.6±10.0 ml; p=0.001), superior mesenteric (10.2±5.1 ml vs. 7.7±3.7 ml; p<0.001), and left renal arteries (5.0±2.4 ml vs. 3.1±2.0 ml; p=0.004). There were no significant changes in stroke volume between the timing with and without IABP support at the left ventricular outflow tract (57.3±22.8 ml vs. 55.1±14.5 ml; p=0.025) and right renal artery (4.7±2.9 ml vs. 3.9±2.4 ml; p=0.17).
Conclusion: IABP support significantly increased stroke volume of the abdominal aorta, celiac, superior mesenteric, and left renal arteries.