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Comparing Copy Number Variations and SNPs

Sequencing of the human genome has opened up several best-kept secrets of the genome. Scientists have identified thousands of genome variations that exist within a population. These variations can be a single nucleotide or a larger chromosomal variation.
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Related Experiment Video

Updated: Jun 12, 2026

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Randomized Study Comparing First-Line Dual Versus Single-Stent Retriever Technique: TWIN2WIN.

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The double-stent retriever (SR) technique significantly improves first-pass recanalization in stroke thrombectomy compared to single-SR. While safe, it did not show superiority in achieving final recanalization, warranting further clinical outcome studies.

Keywords:
reperfusionstentsstrokethrombectomy

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Area of Science:

  • Neurology
  • Interventional Neuroradiology
  • Cardiovascular Diseases

Background:

  • The double-stent retriever (SR) technique is recognized as a rescue strategy for thrombectomy when single-SR fails.
  • This study evaluated the safety and efficacy of employing the double-SR technique as a primary treatment for stroke.

Purpose of the Study:

  • To assess the effectiveness of the double-stent retriever (SR) technique as a first-line approach in stroke thrombectomy.
  • To compare the first-pass recanalization rates between single-SR and double-SR techniques.
  • To evaluate the safety of the double-SR technique, specifically the incidence of symptomatic intracerebral hemorrhage.

Main Methods:

  • A multicenter, randomized, controlled, blinded outcome study included patients with large vessel occlusion stroke within 24 hours.
  • Patients were randomized to either a single-SR or double-SR first-line strategy.
  • Efficacy was defined by first-pass complete recanalization (eTICI 2c-3); safety was assessed by symptomatic intracerebral hemorrhage.

Main Results:

  • First-pass recanalization was achieved in 46% of patients in the double-SR group versus 24% in the single-SR group (aOR, 2.72).
  • Substantial reperfusion within 3 attempts was similar between groups (89% double-SR vs. 84% single-SR).
  • Symptomatic intracerebral hemorrhage occurred in 10% of the double-SR group and 6% of the single-SR group.

Conclusions:

  • First-line double-SR is a safe and effective strategy for improving first-pass recanalization in stroke thrombectomy.
  • The double-SR technique demonstrated superiority in achieving initial recanalization but not final recanalization compared to single-SR.
  • Further research is needed to determine the impact of this technique on overall clinical outcomes in stroke patients.