Safety of the Solitaire 4 3 40 mm Stent Retriever in the Treatment of Ischemic Stroke
Felix Zibold 1 - Personal Name
Pasquale Mordasini 1 - Personal Name
Pascal Mosimann 1 - Personal Name
Eike Piechowiak 1 - Personal Name
Tomas Dobrocky 1 - Personal Name
Urs Fischer 2 - Personal Name
Marcel Arnold 2 - Personal Name
Sebastian Bellwald 2 - Personal Name
Jan Gralla 1 - Personal Name
Purpose Stent retrievers apply mechanical force to the
intracranial vasculature. Our aim was to evaluate the safety
and efficacy of the long Solitaire 4 9 40 mm stent retrie-
ver for large vessel occlusion in stroke patients.
Methods We conducted a retrospective analysis of all
patients treated for acute ischemic large vessel occlusion
stroke with the Solitaire 2 FR 4 9 40 device between May
and October 2016 at our institution. Patient-specific data at
baseline and at discharge were documented. Reperfusion
was graded with the thrombolysis in cerebral infarction
(TICI) classification. Postinterventional angiograms and
follow-up cross-sectional imaging were used to evaluate
complications.
Results TICI 2b/3 recanalization was achieved in 20 of 23
patients (87.0%), in 17 patients with the first retriever pass.
NIHSS improved from a mean score at presentation of 16
(range 4–36) to 11 (range 0–41) at discharge. Mean mRS
score at discharge was 3 (range 0–6) and 3 (range 0–6) at
90 days post-treatment. No infarcts in other territories were
observed. One patient showed a (reversible) vasospasm in
the postinterventional angiogram and another a small
contrast extravasation in follow-up imaging.
Conclusion The Solitaire 2 FR 4 9 40 stent retriever is a
safe and efficient device for large vessel occlusion acute
ischemic stroke with a high recanalization rate and a low
intracranial vasculature. Our aim was to evaluate the safety
and efficacy of the long Solitaire 4 9 40 mm stent retrie-
ver for large vessel occlusion in stroke patients.
Methods We conducted a retrospective analysis of all
patients treated for acute ischemic large vessel occlusion
stroke with the Solitaire 2 FR 4 9 40 device between May
and October 2016 at our institution. Patient-specific data at
baseline and at discharge were documented. Reperfusion
was graded with the thrombolysis in cerebral infarction
(TICI) classification. Postinterventional angiograms and
follow-up cross-sectional imaging were used to evaluate
complications.
Results TICI 2b/3 recanalization was achieved in 20 of 23
patients (87.0%), in 17 patients with the first retriever pass.
NIHSS improved from a mean score at presentation of 16
(range 4–36) to 11 (range 0–41) at discharge. Mean mRS
score at discharge was 3 (range 0–6) and 3 (range 0–6) at
90 days post-treatment. No infarcts in other territories were
observed. One patient showed a (reversible) vasospasm in
the postinterventional angiogram and another a small
contrast extravasation in follow-up imaging.
Conclusion The Solitaire 2 FR 4 9 40 stent retriever is a
safe and efficient device for large vessel occlusion acute
ischemic stroke with a high recanalization rate and a low
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