Kimmaliardjuk Donna May, Ruel Marc
a Division of Cardiac Surgery , University of Ottawa Heart Institute , Ottawa , Canada.
Expert Rev Cardiovasc Ther. 2017 Apr;15(4):267-276. doi: 10.1080/14779072.2017.1308252. Epub 2017 Mar 27.
Right ventricular failure (RVF) affects up to 50% of patients post-left ventricular assist device (LVAD) implantation, and carries significant morbidity and mortality. There is no widely-used long-term mechanical support option for the right ventricle, thus early identification, prevention and medical treatment of RVF is of the upmost importance. Areas covered: A PubMed search was first completed searching 'Right ventricular failure post-LVAD' which yielded 152 results, and a subsequent search was performed under 'RV mechanical support' which yielded 374 results, and was filtered to 'humans' and literature written in English, generating 219 results. We focused this research on pre-operative risk factors identified in the literature for developing RVF-post LVAD implantation, and the medical and surgical treatment options for RVF, including mechanical treatment options. Expert commentary: There is little consensus on pre-operative risk factors that reliably predict RVF post-LVAD implantation. Large prospective randomized trials would help clarify indications for specific medical and surgical therapy. We gather this knowledge in the present article and describe the main RVF remediation modalities. Surgeons and anesthesiologists should help prevent and have a low threshold for initiating supportive treatment for RVF, which may include increasingly invasive therapies up to long-term mechanical RV support.
右心室衰竭(RVF)影响高达50%的左心室辅助装置(LVAD)植入术后患者,并带来显著的发病率和死亡率。目前尚无广泛应用的右心室长期机械支持方案,因此,RVF的早期识别、预防和治疗至关重要。涵盖领域:首先在PubMed上进行搜索,检索词为“LVAD植入术后右心室衰竭”,共得到152条结果,随后在“右心室机械支持”项下进行搜索,得到374条结果,并筛选为“人类”以及英文撰写的文献,最终得到219条结果。我们将这项研究聚焦于文献中确定的LVAD植入术后发生RVF的术前危险因素,以及RVF的内科和外科治疗方案,包括机械治疗方案。专家评论:对于可靠预测LVAD植入术后RVF的术前危险因素,目前几乎没有共识。大型前瞻性随机试验将有助于明确特定内科和外科治疗的适应症。我们在本文中收集了这些知识,并描述了主要的RVF补救方式。外科医生和麻醉医生应协助预防RVF,并对启动支持性治疗保持较低阈值,支持性治疗可能包括越来越具侵入性的治疗,直至长期右心室机械支持。