THE EVALUATION OF CHRONIC TOTAL OCCLUSION ANGIOPLASTY RESULTS, IN PATIENTS SUFFERING FROM CORONARY ARTERY DISEASE
Keywords:CTO angioplasty, Bridging collaterals calcification, Duration, Long lesions
AbstractObjective: Considering the prevalence and increasing rate of coronary artery
disease patients diagnosed with CTO, the promising reports of angioplasty
results in these patients and lack of information on these results in the country,
this research has been carried out on the referrals of Modarres hospital in the year
2008 to determine the efficacy of CTO angioplasty.
Methodology: The research has been carried out using case series design.CTO
angioplasty was done by the ante-grade method from the femoral approach. If the
guidewire enters the true lumen and after predilatation, ante-grade flow is
established, it is proclaimed successful, on the other hand if the guide wire fails to
pass through CTO, or ante-grade flow is not established, it is considered the
endpoint to angioplasty and proclaimed unsuccessful.The role of age and gender,
bridging collaterals, existence of bending in the site of obstruction, duration of
obstruction for more than one year, long lesions, existence of side branch in the
site of obstruction, in the outcome of CTO angioplasty, was statistically assessed
using Fisher exact test.
Results: The research was conducted on 32 patients, aged 49±10, 81% of
whom were male. The success rate was 65.6% and presence of bending,
bridging collaterals and the long obstruction were significant in failure (P<0.02).
Conclusion: Based on our findings, the success of CTO angioplasty is acceptable
when certain factors are present.