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Background: We assessed the outcomes of a push–pull monorail technique to overcome a difficult anatomical course through the left internal jugular vein in implantable port insertions. Methods: From December 2018 to May 2021, a total of 5326 patients were referred for implantable port insertion in our interventional unit, among which 472 cases were requested for insertion on the left side. Our monorail technique was applied only when the catheter tip entered the azygos vein instead of the superior vena cava (n=8). The technique consists of a puncture at the distal tip of the port catheter with a 21-gauge micropuncture needle, advancing a 0.018-inch hair-wire to the guide, providing support for the pre-assembled port, and advancing the microsheath over the hair-wire to prevent extrusion of the catheter. Results: The push–pull monorail technique was performed in eight patients, and all cases were technically successful, exhibiting a technical success rate of 100%. There were no immediate or delayed complications. Conclusions: The push–pull monorail technique is helpful in overcoming the difficult anatomical course through the left internal jugular vein during implantable port insertion. [ABSTRACT FROM AUTHOR]

Background: We assessed the outcomes of a push-pull monorail technique to overcome a difficult anatomical course through the left internal jugular vein in implantable port insertions., Methods: From December 2018 to May 2021, a total of 5326 patients were referred for implantable port insertion in our interventional unit, among which 472 cases were requested for insertion on the left side. Our monorail technique was applied only when the catheter tip entered the azygos vein instead of the superior vena cava (n = 8). The technique consists of a puncture at the distal tip of the port catheter with a 21-gauge micropuncture needle, advancing a 0.018-inch hair-wire to the guide, providing support for the pre-assembled port, and advancing the microsheath over the hair-wire to prevent extrusion of the catheter., Results: The push-pull monorail technique was performed in eight patients, and all cases were technically successful, exhibiting a technical success rate of 100%. There were no immediate or delayed complications., Conclusions: The push-pull monorail technique is helpful in overcoming the difficult anatomical course through the left internal jugular vein during implantable port insertion.