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KMID : 1005420150170040295
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Journal of Cerebrovascular and Endovascular Neurosurgery
2015 Volume.17 No. 4 p.295 ~ p.300
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Practical Feasibility and Packing Density of Endovascular Coiling Using Target® NanoTM Coils in Small Cerebral Aneurysms
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Jeong Hae-Woong
Jin Sung-Chul
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Abstract
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Objective : Based on the use of NanoTM coils, we retrospectively compared the proportion of the coils (≤ 1.5 mm) and packing density in two patient groups with small cerebral aneurysms (< 4 mm diameter) who were treated with or without NanoTM coils.
Materials and Methods : Between January 2012 and November 2013, in 548 cerebral aneurysms treated by endovascular coiling, 143 patients with 148 small cerebral aneurysms underwent endovascular coiling. After March 2013, coiling with NanoTM coils was performed on 45 small cerebral aneurysms (30.4%).
Results : There were no significant differences in the size and locations of the cerebral aneurysms, the age of the patients, and the procedural modalities between the two groups. The proportion of the coil (≤ 1.5 mm) of the group treated with NanoTM coils (53.6%) was higher than the proportion of the coil (≤ 1.5 mm) of the group treated without NanoTM coils (14.7%) with statistical significance (p < 0.001). The packing density of the group treated with NanoTM coils (31.3 ± 9.69%) was higher than the packing density of the group treated without NanoTM coils (29.49 ± 7.84%), although the difference was not significant. Procedural complications developed in 3 lesions (2 thromboembolisms and 1 carotid dissection) (2.0%). Treatment-related transient neurological deficits due to thromboembolism developed in 1 lesion, which had not been treated with NanoTM coils. There was no treatment-related permanent morbidity or mortality in either of the groups.
Conclusion : In our series, the small cerebral aneurysms treated with NanoTM coils showed more packing density with no additive procedural risk or difficulty.
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KEYWORD
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Cerebral aneurysm, Endovascular
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