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Journal Article
Review
Follow-up Outcomes and Effectiveness of Stent Implantation for Aortic Coarctation: A Systematic Review and Meta-analysis.
Current Problems in Cardiology 2024 March 30
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.
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.
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