Single-clamp technique for aneurysms of the descending thoracic aorta: report of 132 consecutive cases

被引:32
作者
Cooley, DA [1 ]
Golino, A [1 ]
Frazier, OH [1 ]
机构
[1] St Lukes Episcopal Hosp, Texas Heart Inst, Houston, TX 77225 USA
关键词
aneurysm; aorta; descending thoracic; single-clamp technique; aortic cross-clamping; spinal cord protection;
D O I
10.1016/S1010-7940(00)00499-1
中图分类号
R5 [内科学];
学科分类号
1002 ; 100201 ;
摘要
Objective: To determine the efficacy of a single-clamp technique in preventing spinal cord ischemia during repair of aneurysms of the descending thoracic aorta. Patients and methods: From January 1989 to May 1999, 132 consecutive patients (91 men and 41 women, aged 31-86 years), with aneurysms of the descending thoracic aorta underwent repair using a single-clamp technique and temporary partial distal exsanguination. The diseased aortic segment was replaced with a Dacron graft. Blood was re-infused from an auto-transfusion device, and the segmental vessels were over-sewn but not implanted into the graft. Results: The average aortic cross-clamp time was 26.4 min (range, 11-67 min) for the overall group and 37.4 min for patients who had spinal cord complications. An average of 2066 ml of blood was autotransfused (range, 450-6100 ml). During the first 30 postoperative days, 17 patients (12.9%) died. Eleven patients (8.3%) had spinal cord dysfunction, six patients (4.5%) had lower-extremity paraparesis, and five patients (3.8%) had paraplegia. Nine patients (6.8%) had renal Failure necessitating hemodialysis. Other complications included bleeding in 15 cases (11.4%), respiratory failure in 12 cases (9.1%), wound-related sequelae in five cases (3.8%), distal embolism in five cases (3.88), and bowel ischemia in two cases (1.5%). Conclusion: The single-clamp technique yielded an acceptable complication rate, and the mortality was comparable to that seen after the use of more complex methods. For satisfactory results, the cross-clamp time should not exceed 30 min. (C) 2000 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:162 / 167
页数:6
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