Clinical effects of intravascular ultrasound-guided rotational atherectomy combined with cutting balloon in the treatment of severe coronary calcification
Clinical effects of intravascular ultrasound-guided rotational atherectomy combined with cutting balloon in the treatment of severe coronary calcification
Objective Through clinical comparative analysis,to explore the effects of intravascular ultrasound-guided rotational atherectomy combined with cutting balloon in the treatment of severe coronary calcification.Method From January 2013 to August 2022,180 patients with at least one lesion diagnosed as severe calcification by IVUS and coronary angiography in the Heart Center of Henan Provincial People's Hospital and Fuwai Central Cardiovascular Hospital were selected,including 78 patients in rotational atherectomy group and 102 patients in the rotational atherectomy combined with cutting group.The effects of immediate and 1 year after stent implantation was evaluated.Result The maximum calcification radian of the patients in the rotational atherectomy group and the rotational atherectomy combined with cutting group were(220.66±20.73)°and(225.37±20.64)°,respectively.The calcification length ratio was 0.74±0.04 and 0.73±0.05.The minimum lumen area before stent implantation was(2.48±0.07)mm2 and(2.50±0.09)mm2.There was no significant difference between the two groups(P>0.05).After stent implantation,the minimum stent area was(5.40±0.23)mm2 and(5.51±0.20)mm2,and the immediate lumen area was(2.89±0.32)mm2 and(3.02±0.40)mm2 in the rotational atherectomy group and the rotational atherectomy combined with cutting group,respectively.The difference between the two groups was statistically significant(P<0.05).One year after operation,the minimum stent area of the patients in the rotational atherectomy group and the rotational atherectomy combined with cutting group was(4.65±0.19)mm2 and(4.76±0.20)mm2,respectively.There were significant differences in vascular loss and target vessel reconstruction(TVR)between the two groups(P<0.05).Conclusion Rotational atherectomy combined with cutting balloon angioplasty in the treatment of severe calcified lesions of coronary artery can achieve better results after stent implantation.Reduce the proportion of target vessel revascularization 1 year after surgery and improve the prognosis of patients.
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