Background
Stent implantation for coarctation of the aorta has been widely used for the last years. The aim of the study was to analyse the results of stent implantation in patients with native and postoperative coarctation of the aorta performed in The Children’s Memorial Health Institute in Warsaw.
Methods
Fifty four patients with native (39pts) and postoperative (15pts) coarctation were treated with stent implantation.
Results
The mean patient age was 13,6+/-3,2 yrs (range 5-20, med.14) respectively. The diameter of the coarctation increased from a mean 5,2+/-2mm (range 2-11, med.5), to 16,2+/-2,4mm (range 12-22mm, med.16)(p < 0.001). The systolic gradient across the coarctation decreased from a mean 32,5+/-12,3mmHg (range10-84, med.30) before to a mean of 2,7+/-5mmHg (range 0-18, med.0) after the procedure (p<0,000001). During mean follow-up period 3,06+/-3,1yrs (range 0,2-9, med.3) 26pts (48%) has no antyhypertensive treatment and arterial systolic pressure mean 124+/-13mmHg (range 85-146, med.125), diastolic pressure mean 66,4+/-9,7mmHg (range 40-80, med.66) were recorded in whole group. Stent redilation was performed in 5pts during follow up period due to neointimal hyperplasia or patients somatic growth. Covered stents were additionally implanted in 3pts due to stens fracture and in-stent stenosis, in 1pt due to small aneurysm detected 4yrs after stent implantation, in 1pt due to aortic arch hypoplasia.
Conclusions:
Stent implantation in native and postoperative coarctation of the aorta has good immediate and early results. Arterial hypertension therapy can be easily modified after stent implantation. During follow-up period indications for stents redilation and additional covered stent implantations can appear.