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Ischemic stroke
Correspondence on ‘Comparison of balloon guide catheter versus non-balloon guide catheter for mechanical thrombectomy in patients with distal medium vessel occlusion’ by Orscelik et al
  1. Gilbert Gravino1,2,
  2. William Jakobek1,
  3. Sanjeev Nayak1,3,
  4. Ying Yang1,
  5. Jacob Ranjbar1,
  6. Christine Roffe1,3
  1. 1 School of Pharmacy and Bioengineering, Keele University, Stoke on Trent, UK
  2. 2 Department of Neuroradiology, The Walton Centre, Liverpool, UK
  3. 3 Royal Stoke University Hospital, Stoke on Trent, UK
  1. Correspondence to Dr Gilbert Gravino, Neuroradiology, Walton Centre for Neurology and Neurosurgery, Liverpool, UK; gilbert.gravino{at}nhs.net

https://doi.org/10.1136/jnis-2023-021256

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    This is a response to a JNIS publication by Orscelik et al. (2023) titled ‘Comparison of balloon guide catheter versus nonballoon guide catheter for mechanical thrombectomy in patients with distal medium vessel occlusion’.1 A clarification is made about a referenced study by Jakobek et al. (2023) titled‘The effect of distal aspiration catheter position on collateral flow in mechanical thrombectomy - an in vitro study.’

    The commentary emphasises that prolonged placement of a distal aspiration catheter and a BGC could adversely affect collateral flow which in turn can affect viability of the cerebral penumbra (shifting slow progressors into fast progressors), and could also effect the rate of recanlization due to decreased back pressure. These considerations are particularly important since there is a trend towards larger bore aspiration catheters, and BGCs are already widely used. These factors are particularly relevant in prolonged …

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    Footnotes

    • X @GilbertGravino

    • Funding The author has 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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