Iatrogenic type A aortic dissection during percutaneous coronary intervention: A single-center experience.

Objective: Iatrogenic aortic dissection (IAD) during coronary interventions is a rare but fatal complication. There is not enough experience and trial on this subject. In this study, we report our IAD cases and their acute, short-term, and long-term results.

Methods: In this study, we screened 6,096 coronary angiographies performed in our center between February 2016 and February 2019. Ascending aortic dissection developed in 8 patients. A total of 7 patients had computed tomographic angiography images after the event and during the follow-up. We performed 1-month and 1-year follow-up examinations.

Results: The incidence of IAD was 0.13%. The female sex ratio was as 63%. A total of 37% of the patients had presented with acute coronary syndrome. In 37% of the patients, dissection occured while support catheter use, but in the remaining patients, dissections developed owing to hydraulic pressure. Regardless of the Dunning staging, 7 patients were followed-up with medical treatment, and 1 patient with decreased coronary flow was referred to emergency coronary bypass surgery. Regression was in the first tomography in 4 patients and observed in the control tomography in the remaining patients with medical treatment. The in-hospital 1-month and 1-year mortality rates were 0%.

Conclusion: IAD is a fatal disease, and conservative follow-up is suggested due to lack of clear management recommendations. The findings in our study showed that medical treatment is the first choice for the hemodynamically stable patients when dissection is sealed by stenting; however, surgical treatment is required in patients with the decreased coronary flow.