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Transcatheter aortic valve implantation in patients with ascending aortic dilatation: safety of the procedure and mid-term follow-up†.
European Journal of Cardio-thoracic Surgery 2014 August
OBJECTIVES: Transcatheter aortic valve implantation (TAVI) does not enable concomitant or simultaneous ascending aortic intervention. This investigation evaluates the safety of TAVI in patients with ascending aortic dilatation and demonstrates mid-term follow-up.
METHODS: From November 2007 to December 2012, among 1143 patients with severe aortic stenosis screened for TAVI, a cohort of 457 patients met the inclusion criteria. Of these, a total of 98 patients [71% males, median age 85.0 (9.0) years] were diagnosed with concomitant ascending aortic dilatation (4.0-5.0 cm). An additional 2 patients had an ascending aortic diameter of >5.0 cm. The mid-term follow-up (652.2 patient-years) was 100% complete.
RESULTS: There was no iatrogenic dissection in patients with dilatated ascending aorta. Intraoperative aortic rupture occurred in 1 patient with mildly dilatated ascending aorta. One-year survival rates in patients with dilatated and non-dilatated ascending aorta were 65 of 75 (87%) and 201 of 242 (83%, P = 0.573). The mean ascending aortic diameter remained stable at 4.1 (0.2) and 4.7 (0.2) cm in patients with mild and moderate dilatation, respectively, with a median follow-up of 14 months after TAVI. Two patients with an aortic diameter of over 5.0 cm survived the procedure and expired 7 and 20 months after TAVI due to tumour and heart failure, respectively.
CONCLUSIONS: Ascending aortic dilatation is diagnosed in almost one-fourth of patients treated with TAVI. Their intraprocedural risk of adverse aortic events is low. The ascending aortic dilatation does not affect mid-term survival in the TAVI population.
METHODS: From November 2007 to December 2012, among 1143 patients with severe aortic stenosis screened for TAVI, a cohort of 457 patients met the inclusion criteria. Of these, a total of 98 patients [71% males, median age 85.0 (9.0) years] were diagnosed with concomitant ascending aortic dilatation (4.0-5.0 cm). An additional 2 patients had an ascending aortic diameter of >5.0 cm. The mid-term follow-up (652.2 patient-years) was 100% complete.
RESULTS: There was no iatrogenic dissection in patients with dilatated ascending aorta. Intraoperative aortic rupture occurred in 1 patient with mildly dilatated ascending aorta. One-year survival rates in patients with dilatated and non-dilatated ascending aorta were 65 of 75 (87%) and 201 of 242 (83%, P = 0.573). The mean ascending aortic diameter remained stable at 4.1 (0.2) and 4.7 (0.2) cm in patients with mild and moderate dilatation, respectively, with a median follow-up of 14 months after TAVI. Two patients with an aortic diameter of over 5.0 cm survived the procedure and expired 7 and 20 months after TAVI due to tumour and heart failure, respectively.
CONCLUSIONS: Ascending aortic dilatation is diagnosed in almost one-fourth of patients treated with TAVI. Their intraprocedural risk of adverse aortic events is low. The ascending aortic dilatation does not affect mid-term survival in the TAVI population.
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