Pulmonary artery catheter placement in patients with a history of tricuspid ring annuloplasty, with pulmonary stenosis, and with the transvenous pacemaker leads: is it difficult?

对于有三尖瓣环成形术史、肺动脉狭窄和经静脉起搏器导线的患者，肺动脉导管置入术是否困难？