CARDIAC SURGERY may be complicated by an exaggerated systemic inflammatory response accompanied by loss of vascular smooth muscle tone and severe vasodilation (vascular paralysis or vasoplegia). Vasoplegia has been denned according to the following set of hemodynamic criteria: mean arterial pressure <50 mmHg, systemic vascular resistance <800 dynes ? s ? cm"5, cardiac index >2.5 L/min/m2, right atrial pressure <5 mmHg, and left atrial pressure <10 mmHg during the infusion of a vasoconstrictor such as norepineph-rine.1 This syndrome was first described in 1994 after cardiac surgery with cardiopulmonary bypass.
展开▼
机译：心脏外科手术可能会因全身性炎症反应过度，并伴有血管平滑肌张力降低和严重的血管扩张（血管麻痹或血管麻痹）而复杂化。根据以下血流动力学标准定义了血管痉挛：平均动脉压<50 mmHg，全身血管阻力<800达因？ s？ cm？5，在输注血管收缩剂（如去甲肾上腺素-碱）过程中，心脏指数> 2.5 L / min / m2，右心房压力<5 mmHg，左心房压力<10mmHg。1该综合征始于1994年体外循环手术。
展开▼
