In-hospital outcomes of transcatheter aortic valve implantation procedure: data of single-center registry

Transcatheter aortic valve replacement is an appropriate alternative to open surgery in some patients with severe aortic stenosis who have significant comorbidities and high surgical risk.Aim. To evaluate the immediate results of transcatheter aortic valve replacement in patients with severe aortic stenosis.Material and Methods. This is a retrospective study, which included 350 patients who underwent transcatheter aortic valve replacement from 2015 to 2021. Mortality, complications, clinical data, and echocardiographic parameters were assessed in the early postoperative period after the procedure.Results. The patient mean age was 75.3 ± 7.2 years. The majority of patients had intermediate surgical risk: EuroScore II of 6.7 ± 5.4 and STS-PROM score of 3.3 ± 1.9. In most cases, there was severe hypertrophy of left ventricular (LV) myocardium with an average LV myocardial mass of 330.9 ± 88.4 g. The average postprocedural pressure gradient across the aortic valve was 8.9 ± 4.4 mm Hg. The most common procedural complication was complete heart block (10%). In-hospital mortality rate was 1.7%.Conclusion. Our register demonstrated the optimal immediate clinical and echocardiographic results of transcatheter aortic valve replacement in patients with severe aortic stenosis.