Superior vena cava (SVC) is the biggest venous

channel carrying blood from head, upper extremities

and upper thorax to the heart. Subclavian vein is

almost always utilized during pacemaker

implantation. Although venous stenosis after

pacemaker implantation is a common complication,

most of the patients remain asymptomatic. SVC

syndrome is a serious but very rare complication of

pacemaker implantation. Here, we report a patient

with SVC syndrome and concomitant subclavian

stenosis due to pacemaker implantation 20 years ago.

Different treatment strategies are available but

sometimes as in our case, it may be difficult to treat.