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Follow-Up Outcomes and Effectiveness of Stent Implantation for Aortic Coarctation: A Systematic Review and Meta-Analysis Publisher Pubmed



Ahmadi A1 ; Mansourian M1, 2 ; Sabri MR1 ; Ghaderian M1 ; Karimi R2 ; Roustazadeh R3
Authors
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Authors Affiliations
  1. 1. Pediatric Cardiovascular Research Center, Cardiovascular Research Institute, Isfahan University of Medical Sciences, Isfahan, Iran
  2. 2. Department of Epidemiology and Biostatistics, School of Health, Isfahan University of Medical Sciences, Isfahan, Iran
  3. 3. European Vascular Center Aachen-Maastricht, Department of Vascular Surgery, University Hospital RWTH Aachen, Aachen, 52074, Germany

Source: Current Problems in Cardiology Published:2024


Abstract

Background: The authors aim to investigate the clinical implications of stent use for the management of CoA. Methods: All observational studies on stent implantation for the treatment of aortic coarctation and the relevant RCTs were systematically retrieved. Outcomes included the immediate success rate, pre- and post-stent gradient, survival, minor and major complications, restenosis, post-stent systolic blood pressure, and reintervention rate. The analysis was further stratified by CoA type, stent type, and the mean age of the patients. Results: Our meta-analysis incorporated 66 eligible studies involving 3,880 patients. The success rates for stent placement, defined as achieving post-treatment gradients of ≤20 mmHg and 10 mmHg, 0.96 (95% CI: 0.95 – 0.97; I2 = 59.83%) and 0.92 (95% CI: 0.89 − 0.95, I2 = 77.63%) respectively. The complication rates were quite low, with minor and major complication rates of 0.017 (95% CI: 0.013 – 0.021) and 0.007 (95% CI: 0.005 – 0.009), respectively. Unplanned reinterventions were required at a rate of 0.021 (95% CI: 0.015 – 0.026). At a mean follow-up of 2.9 years, 97% of the patients survived and 28% remained on antihypertensive therapy. While immediate effectiveness was consistent across age groups, complications were more prevalent in patients aged <20 years, and long-term efficacy was lower in those aged >20 years. Encouragingly, in neonates and infants, CoA stenting yielded results comparable to those observed in older children. Conclusion: These findings underscore the overall favorable outcomes of stent placement for aortic coarctation, with considerations for age-related variations in complications and long-term efficacy. © 2024
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