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J Thorac Cardiovasc Surg 2005;129:809-812
© 2005 The American Association for Thoracic Surgery

General Thoracic Surgery

Long-term graft patency after replacement of the brachiocephalic veins combined with resection of mediastinal tumors

Department of General Thoracic Surgery, E1, Osaka University Graduate School of Medicine, Osaka, Japan

Received for publication February 25, 2004; revisions received April 20, 2004; accepted for publication May 4, 2004.

^_* Address for reprints: Mitsunori Ohta, MD, Department of General Thoracic Surgery, E1, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka 565-0871, Japan. (E-mail: ohta{at}surg1.med.osaka-u.ac.jp).

OBJECTIVE: We sought to investigate the correlation between type of vascular reconstruction and long-term graft patency after replacement of brachiocephalic veins combined with resection of mediastinal malignancies.

METHODS: Eighteen patients underwent surgical resection of tumors and the superior vena cava with concomitant vascular reconstruction using ringed polytetrafluoroethylene grafts. Graft patency was verified by means of venography or contrast-enhanced computed tomography at time points ranging from 3 to 77 months (median, 33 months) postoperatively.

RESULTS: Seven patients underwent sole reconstruction of the right brachiocephalic vein, with occlusion observed in only 1 patient. In 6 patients who underwent reconstruction of the bilateral brachiocephalic veins with 2 separate grafts, the grafts remained patent in 2, whereas 4 patients experienced occlusion of one of the two grafts yet remained asymptomatic. Both patients who underwent reconstruction with a Y graft experienced left brachiocephalic vein graft occlusion. In the 3 patients who underwent reconstruction of a left brachiocephalic vein, the graft became occluded, and superior vena cava syndrome developed in 2 of these patients.

CONCLUSION: When replacing the superior vena cava, reconstruction of a left brachiocephalic vein alone results in a significant rate of occlusion and development of superior vena cava syndrome. Thus we advocate sole right brachiocephalic vein reconstruction or bilateral brachiocephalic vein reconstruction in this setting, and separate reconstruction of the veins is preferable to use of a Y graft.

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