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The Effect of Preoperative Hematocrit Levels on Early Outcomes After Coronary Artery Bypass Graft

机译：术前血细胞比容水平对冠状动脉旁路移植后早期结果的影响

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Introduction Coronary artery bypass graft (CABG) is the most potent of surgical procedures; in this procedure, the narrowing of the coronary artery due to atherosclerotic plaque is bypassed by forming an alternate route for blood flow to the heart. There are various risk factors associated with the procedure. The aim of this study was to observe if postoperative outcomes are affected by preoperative hematocrit (hct) levels in patients. Methods This longitudinal study was conducted from April 2019 to December 2019. Eighty-two (82) participants who were to undergo CABG surgery were divided into two groups based on their preoperative hct levels. Group 1 had 42 participants with lower levels of hct (less than 35.5% for women and 38.3% for men), whereas group 2 consisted of 40 participants with normal hct levels (greater than 35.5% for women and 38.3% for men). Results The results showed that participants undergoing CABG with lower than normal hct levels?had increased blood loss through drainage as compared to participants who had normal hct levels (680.1 ± 301 mL vs. 500.7?± 412 mL; p-value: 0.02). Group 1 participants also had an increased need for blood and blood product?transfusion as compared to group 2 (3.2 ± 1.8 units vs. 1.8 ± 0.9 units; p-value: 0.0001). Furthermore, the participants in group 1 had longer stays in the ICU?relative to the other group (5.2?± 3.1 days vs. 3.4 ± 2.5 days; p-value: 0.003). Conclusion Based on our findings, patients who undergo CABG surgery with?lower than normal hct levels are at increased risk of certain complications, including?excessive blood loss, need for transfusion, and increased duration of ICU stay. Therefore, preoperative hct levels should be routinely checked in patients undergoing CABG to prevent these complications.
机译：介绍冠状动脉旁路移植物（CABG）是手术手术中最有效的;在该方法中，通过形成心脏血流的交替途径来绕由于动脉粥样硬化斑块引起的冠状动脉缩小。与该程序有关的各种风险因素。该研究的目的是观察术后结果受术前血细胞比容（HCT）水平的影响。方法采用该纵向研究于2019年4月至2019年12月进行.82（82）名正在接受CABG手术的参与者根据其术前HCT水平分为两组。第1组有42名患有较低的HCT水平的参与者（妇女的少于35.5％，男性38.3％），而第2组由40名参与者组成，患有正常的HCT水平（妇女的35.5％，男性持续35.3％）组成。结果结果表明，与具有正常HCT水平的参与者（680.1±301ml与500.7±412 ml;±412 ml;±412 ml;±412ml; p值，参加比正常的HCT水平接受CABG的参赛者（680.1±301 ml;±412 ml; p值），通过引流增加了血液损失。第1组参与者还增加了血液和血液产品的需求增加，与第2组相比（3.2±1.8单位与1.8±0.9单位; P值：＆ 0.0001）。此外，第1组的参与者在ICU中保持较长？相对于其他组（5.2？±3.1天与3.4±2.5天; p值：0.003）。结论基于我们的研究结果，接受CABG手术的患者患者（低于正常的HCT水平）均增加某些并发症的风险增加，包括？过度的失血，需要输血，并增加ICU持续时间。因此，应常规检查术前HCT水平，以防止这些并发症。

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