Ferreira Jason, DeLosSantos Marci
Pharmacy Department, Shands Jacksonville, Jacksonville, Florida.
J Emerg Med. 2013 Jun;44(6):1201-10. doi: 10.1016/j.jemermed.2012.12.022. Epub 2013 Apr 18.
Prothrombin complex concentrate (PCC) is an inactivated concentrate of factors II, IX, and X, with variable amounts of factor VII. Guidelines recommend the use of PCC in the setting of life-threatening bleeds, but little is known on the most effective dosing strategies and how the presenting international normalized ratio affects response to therapy.
This review aims to highlight available data on monitoring techniques, address shortcomings of currently available data, the reversal of life-threatening and critical bleeds with PCC, and how this product compares to other therapeutic options used in critically ill patients.
PCC has been identified as a potential therapy for critically bleeding patients, but patient-specific factors, product availability, and current data should weigh the decision to use it. Most data exist regarding patients experiencing vitamin K antagonist-induced bleeding, more specifically, those with intracranial hemorrhage. PCC has also been studied in trauma-induced hemorrhage; however, it remains controversial, as its potential benefits have the abilities to become flaws in this setting.
Health care professionals must remain aware of the differences in products and interpret how three- versus four-factor products may affect patients, and interpret literature accordingly. The clinician must be cognizant of how to progress when treating a bleeding patient, propose a supported dosing scheme, and address the need for appropriate factor VII supplementation. At this point, PCC cannot be recommended for first-line therapy in patients with traumatic hemorrhage, and should be reserved for refractory bleeding until more data are available.
凝血酶原复合物浓缩剂(PCC)是一种灭活的含有凝血因子II、IX和X以及不同含量凝血因子VII的浓缩剂。指南推荐在危及生命的出血情况下使用PCC,但对于最有效的给药策略以及初始国际标准化比值如何影响治疗反应知之甚少。
本综述旨在强调有关监测技术的现有数据,指出当前现有数据的不足之处,PCC对危及生命和严重出血的逆转作用,以及该产品与危重症患者使用的其他治疗选择相比情况如何。
PCC已被确定为严重出血患者的一种潜在治疗方法,但患者的个体因素、产品可用性和现有数据应在决定是否使用时加以权衡。大多数数据来自维生素K拮抗剂诱导出血的患者,更具体地说,是颅内出血患者。PCC也已在创伤性出血中进行研究;然而,它仍然存在争议,因为在这种情况下其潜在益处可能会变成缺陷。
医疗保健专业人员必须了解产品之间的差异,并解读三因子与四因子产品可能如何影响患者,并据此解读文献。临床医生必须清楚在治疗出血患者时如何推进,提出有依据的给药方案,并满足适当补充凝血因子VII的需求。目前,对于创伤性出血患者,不推荐将PCC作为一线治疗,应留作难治性出血的治疗选择,直到有更多数据可用。