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To the Editor
We read with great interest the article by Fredrickson et al 1 regarding the outcomes of mechanical thrombectomy (MT) for large vessel occlusions (LVO) using the aspiration first pass technique (ADAPT) or stentriever first aspiration. This retrospective cohort study used a single surgeon series over a 12 month time period to control for procedural confounding variables. The results indicated that ADAPT was associated with a superior outcome compared with the stentriever first technique. However, we wish to raise several comments regarding this study.
In this study, although the patient characteristics were balanced between the two cohorts, there were still many uncontrolled factors, which reduced the effectiveness of the conclusions and even its reference. For example, the time window for onset to procedure time was not …
Contributors Z-YS wrote the manuscript; XM designed the work and revised the manuscript.
Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial, or not-for-profit sectors.
Competing interests None declared.
Provenance and peer review Not commissioned; internally peer reviewed.
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