Meta-Analysis of Outcomes of Transcatheter Aortic Valve Implantation Among Patients With Low Gradient Severe Aortic Stenosis

Autor: Fahad Alqahtani, Yasir Abdul Ghaffar, Babikir Kheiri, Mohammed Osman, Khansa Osman, Tianne J. Foster, Kuldeep Shah, Mohamad Alkhouli
Rok vydání: 2019
Předmět:
Zdroj: The American Journal of Cardiology. 124:423-429
ISSN: 0002-9149
DOI: 10.1016/j.amjcard.2019.05.006
Popis: Transcatheter aortic valve implantation (TAVI) has emerged as an effective therapy for patients with severe aortic stenosis (AS). However, data on TAVI outcomes in patients with low gradient (LG) AS are limited. We performed a meta-analysis of studies comparing TAVI outcomes between patients with classic high gradient (HG) and LG AS through November 2018. The 30-day mortality, mid-term all-cause, and cardiovascular mortality at maximum follow-up were compared between patients with HG and LG AS (Pairwise meta-analysis), and between the three distinct groups of AS including HG, paradoxical low-flow low-gradient and low gradient with reduced ejection fraction (rEF-LG) (Network meta-analysis). Nineteen studies (n = 27,204 patients) met the inclusion criteria. The HG group had less 30-day, mid-term all-cause and cardiovascular mortality compared with the low-gradient AS group overall, (6% vs 7.5%, OR 0.76, 95% CI 0.66 to 0.87, I2 = 18%), (21% vs 29%, OR 0.59, 95% CI 0.52 to 0.67, I2 = 62%), and (12.6% vs 18.7%, OR 0.61, 95% CI 0.49 to 0.76, I2 = 62%), respectively, p
Databáze: OpenAIRE