RESUMO
True aortic Stenosis is localized Protrusion of middle layer to it's lumen. That cause reducing of blood flow. If untreated serious complications may occur. The evaluation of follow-up results of coarctation treatment in patients admitted to Shaheed Rajaie Medical center Hospital between 1993 and 2004. This is a cross sectional study encompassing all the patients admitted to Shahid Rajaee Hospital with coarctation of aorta between 1993 and 2004. The data from the patients' files were extracted. Sixty-four cases [29.8%] were female and 145 cases [70.2%] were male. Mean age in the time of treatment was [6.51 +/- 9.91] yrs. Twenty-three cases [11%] were treated with balloon angioplasty; 177cases [84.7%] underwent surgical operations; and 9 cases [4.3%] have not been operated on in this center yet. Duration of follow up was 1 to 14 years. 5 cases died after treatment. Mean follow up was 3.72 years. During of follow up period, 25.4% became hypertensive that frequency of hypertension was significantly higher in older cases [P<0.05]. 67.5% had pressure gradient equal or more than 20mmHg by echocardiography. 30 cases [14.3%] had recoarctation by catheterization [26 cases after surgery and 4 cases after native balloon angioplasty]; there was no relation between age and this variable. On the basis of results of this and same studies treatment of coarctation in lower age had lower frequency of hypertension and about effect of treatment in lower ages and higher frequency of recoarctation there is controversy