Blood transfusion is a frequently performed medical procedure in surgical and nonsurgical contexts. Although it is often necessary or even life-saving, it has been identified as one of the most overused procedures in hospitals. Unnecessary transfusions not only waste resources but can also be detrimental to patient outcomes. Patient blood management (PBM) is the clinical practice of optimizing transfusions and associated outcomes. In this paper, we introduce Sanguine, a visual analysis tool for transfusion data and related patient medical records. Sanguine was designed with two user groups in mind: PBM experts who oversee blood management practices across an institution and clinicians performing transfusions. PBM experts use Sanguine to explore and analyze transfusion practices and their associated medical outcomes. They can compare individual surgeons, or compare outcomes or time periods, such as before and after an intervention regarding transfusion practices. PBM experts then curate and annotate views for communication with clinicians, with the goal of improving their transfusion practices. We validate the utility and effectiveness of Sanguine through case studies.

输血是外科和非外科手术中经常进行的医疗程序。尽管它通常是必要的甚至可以挽救生命，但它已被确定为医院中使用最频繁的程序之一。不必要的输血不仅浪费资源，而且可能对患者的治疗结果有害。患者血液管理 (PBM) 是优化输血和相关结果的临床实践。在本文中，我们介绍了 Sanguine，一种用于输血数据和相关患者病历的可视化分析工具。Sanguine 的设计考虑了两个用户组：监督整个机构的血液管理实践的 PBM 专家和执行输血的临床医生。PBM 专家使用 Sanguine 来探索和分析输血实践及其相关的医疗结果。他们可以比较个别外科医生，或比较结果或时间段，例如在有关输血实践的干预之前和之后。PBM 专家然后策划和注释与临床医生沟通的观点，目的是改善他们的输血实践。我们通过案例研究验证了 Sanguine 的实用性和有效性。