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[心脏移植的替代手术选择]

[Alternative surgical options to heart transplantation].

作者信息

Dreyfus G

机构信息

Service de chirurgie cardiovasculaire, université Paris V, hôpital Foch, Suresnes.

出版信息

Arch Mal Coeur Vaiss. 1998 Nov;91(11):1413-22.

PMID:9864612
Abstract

Cardiac transplantation is the treatment of reference for refractory cardiac failure but the limited number of donors, the complications inherent to transplantation and the relative and absolute contra-indications has made it necessary to find alternative surgical solutions. The detection of myocardial viability by Thallium scintigraphy, Dobutamine echocardiography and/or position emission tomography in coronary disease, allows identification of zones which are capable of recovering contractile function after revascularisation. The authors report the results of a series of 91 operated patients with a 10 year follow-up having a 72% 5 year actuarial survival and improved ejection fraction. The other alternative which may improve symptoms and prognosis in patients with severe ischaemic heart disease with left ventricular dysfunction is apical remodelling or Dor's procedure. The results of a haemodynamic study at 1 year of 171 patients clearly show a functional improvement and an increase of the ejection fraction. The advantage of this method is that it can be used in patients with dyskinetic and akinetic plaques resulting from antero-septo-apical infarction. Finally, even if mitral regurgitation is relatively uncommon in chronic ischaemic heart disease, a simple procedure (annuloplasty) is often sufficient to correct the mitral regurgitation and reduce the afterload of a failing ventricle. On the other hand, in dilated cardiomyopathy, two new options have been developed; one, suggested by Steven Bolling, proposes simple mitral annuloplasty whatever the underlying cause (primary or ischaemic cardiomyopathy) with symptomatic improvement and better haemodynamics in terms of increased cardiac output and oxygen consumption on exercise and an actuarial survival much higher than that of cardiac transplantation at one and at two years. The most recent innovation is the Batista procedure which is a method of ventricular reduction associated with correction of mitral regurgitation. The authors have assessed 20 patients for this operation at the Foch Hospital by Dobutamine echocardiography and 5 patients underwent the procedure. All 5 patients reported symptomatic improvement but some had an unchanged haemodynamic status. Others improved at rest and some improved on exercise. The Cleveland Clinic series reported results in 57 cases. Whichever alternative method tested, there is a significant functional improvement but the cardiac output does not always increase. There are no comparative prospective randomised studies and strict selection of patients is required, a problem not yet resolved for all indications. The advantages of these procedures are certain as there is no waiting list, the functional results in good indications have been demonstrated and, if necessary, secondary orthotopic cardiac transplantation is always possible.

摘要

心脏移植是难治性心力衰竭的首选治疗方法,但供体数量有限、移植固有并发症以及相对和绝对禁忌证使得有必要寻找替代手术解决方案。通过铊闪烁显像、多巴酚丁胺超声心动图和/或正电子发射断层扫描检测冠心病中的心肌活力,能够识别血管重建后可恢复收缩功能的区域。作者报告了一组91例接受手术患者的10年随访结果,5年实际生存率为72%,射血分数有所改善。另一种可改善重度缺血性心脏病伴左心室功能不全患者症状和预后的方法是心尖重塑或Dor手术。对171例患者进行的1年血流动力学研究结果清楚地显示了功能改善和射血分数增加。该方法的优点是可用于前间隔心尖梗死导致的运动障碍和无运动斑块患者。最后,即使二尖瓣反流在慢性缺血性心脏病中相对少见,一个简单的手术(瓣环成形术)通常足以纠正二尖瓣反流并降低衰竭心室的后负荷。另一方面,在扩张型心肌病中,已开发出两种新选择;一种由史蒂文·博林提出,建议无论潜在病因(原发性或缺血性心肌病)如何,均进行简单的二尖瓣瓣环成形术,症状改善,血流动力学更好,表现为运动时心输出量增加和氧消耗增加,1年和2年的实际生存率远高于心脏移植。最新的创新是巴蒂斯塔手术,这是一种与二尖瓣反流矫正相关的心室缩小方法。作者在福煦医院通过多巴酚丁胺超声心动图对20例患者进行了该手术评估,5例患者接受了该手术。所有5例患者均报告症状改善,但部分患者血流动力学状态未改变。其他患者休息时改善,部分患者运动时改善。克利夫兰诊所系列报告了57例结果。无论测试哪种替代方法,都有显著的功能改善,但心输出量并非总是增加。目前尚无比较性前瞻性随机研究,需要严格选择患者,这一问题并非所有适应证都已解决。这些手术的优点是确定的,因为没有等待名单,已证明在合适适应证中的功能结果,并且如有必要,二次原位心脏移植总是可行的。

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