Background: Mechanical thrombectomy (MT) is a new evidence-based treatment option for large vessel occlusion in the anterior brain circulation. Using comprehensive administrative data from Germany, we analysed the nationwide development of intravenous thrombolysis (IVT) and MT in Germany between 2010 and 2016.
Methods: We considered all documented cases ( = 1,515,634) with a main diagnosis of the ICD-10-GM code I63 (ischemic stroke) and identified specific stroke recanalization therapy by using the corresponding Operating and Procedure Key for systemic thrombolysis and mechanical thrombectomy out of the DRG statistics. Regional analyses are based on data from the 413 German administrative districts and cities and the obligatory quality reports of all hospitals. We distinguished between rates of MT related to place of residence of patients and place of treatment.
Results: Coded ischemic strokes increased by 10.2% from 2010 ( = 206.688) to 2016 ( = 227.687). The rate of IVT increased from 8.9% in 2010 to 14.9% in 2016 and the rate of MT increased from 0.8% in 2010 to 4.7% in 2016 with a strong increase in 2015 and 2016. There was a high regional variability of MT according to place of residence of patients between 0 and 11.2% in 2016 with significant lower treatment rates in rural compared to urban areas (3.8 vs 5.4%). Mean age of patients treated with MT increased from 67.8 years in 2010 to 73.3 years in 2016 and almost reached the mean age of IVT treated patients (74.4 years). The number of hospitals coding MT increased from 91 to 193 from 2010 to 2016, but 80% of all MT procedures were performed in neurointerventional centers with ≥50 procedures/year in 2016.
Conclusions: The rate of IVT in patients with acute ischemic stroke in Germany continues to rise and has reached 14.9% nationwide. The increase of MT is even more pronounced and was triggered by the evidence after publication of the MT randomized trials. There is still a high regional variability with significant lower MT rates in rural areas.
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| http://dx.doi.org/10.1186/s42466-019-0010-8 | DOI Listing |
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