Reconstruction of the Pulmonary Artery
- Oncologically complete resection should be primarily pursued.
- Use of magnifying loops (2.5×) is essential.
- Do not insist on wedge resection or patch reconstruction when a sleeve with end-to-end anastomosis can ensure a larger caliber and a straight arterial axis.
- High-tension anastomosis must be avoided, do not hesitate to interpose a conduit.
- Choose the most appropriate biologic material when prosthetic reconstruction is required.
- Test the arterial axis and suture oozing after reinflation of the residual lobe; torsion of the arterial axis may cause oozing or torsion of the artery.
The pulmonary artery (PA) can be infiltrated by primary lung tumors or by metastatic hilar-mediastinal lymph nodes with extracapsular extension. The right and left PAs can be involved to various extents. Partial infiltration of the arterial wall may be limited and require only simple, tangential resection and direct suture. This technique is regarded as a variation of standard lobectomy and is not considered in this chapter.
More extensive defects of the PA (Table 1) may require reconstruction by a patch (of various materials), sleeve resection and reconstruction by end-to-end anastomosis, or sleeve resection and reconstruction by a prosthetic conduit. If the main PA is infiltrated by advanced lung cancer, the reconstruction requires the use of cardiopulmonary bypass.
Superior pulmonary vein
Complete circumferential infiltration
Pulmonary artery sleeve
Pericardial conduit Prosthesis
Autologous superior pulmonary vein conduit
Infiltration of main pulmonary artery
Reconstruction via cardiopulmonary bypass
There's more to see -- the rest of this topic is available only to subscribers.