Preoperative venography, antiplatelet agents, and postoperative manometry are among the few recommendations considered to having a strong evidence base.

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“Select the best measure field that could minimize the area of Onyx cast in the field to prevent burning of the image field,” senior author advises.…

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But a lack of good outcome data indicates there is more work to be done, with researchers calling for a randomized trial.…

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Onyx embolization achieves a high occlusion rate, but stroke and death risks are higher than with medical management.…

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Though there are now alternatives, introduction of Onyx was “revolutionary,” one expert says.…

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