Trnka K E, Febres-Roman P R, Cadigan R A, Crone R A, Williams T H
Clin Cardiol. 1980 Oct;3(5):352-5. doi: 10.1002/clc.4960030411.
In this report clinical and angiographic data on three patients with total occlusion of the left main coronary artery is presented. Two of our cases demonstrated rich collateralization with good preservation of left ventricular (LV) function. The third case, with initial subtotal occlusion and no collaterals, sustained a severe anterolateral myocardial infarction (MI) responding to the use of the intra-aortic balloon pump (IABP). This report is consistent with the findings of others who suggest the possible beneficial effect of collaterals in preserving myocardial contractility in this unusual situation. We suggest that the IABP may be of benefit in patients with total occlusion of the left main coronary artery and sparse collaterals who remain unstable and cannot be operated on immediately.
本报告介绍了3例左主干冠状动脉完全闭塞患者的临床和血管造影数据。我们的2例病例显示有丰富的侧支循环，左心室（LV）功能得到良好保留。第3例病例最初为次全闭塞且无侧支循环，发生了严重的前外侧心肌梗死（MI），使用主动脉内球囊泵（IABP）后病情得到缓解。本报告与其他研究结果一致，这些研究表明在这种特殊情况下，侧支循环可能对保留心肌收缩力具有有益作用。我们认为，对于左主干冠状动脉完全闭塞且侧支循环稀少、仍不稳定且无法立即进行手术的患者，IABP可能有益。
