If bleeding is severe, an additional procedure or surgery may be needed to control it.
如果出血严重，可能需要额外的程序或手术来控制它。
Results: the procedure has clear vision, with less bleeding. And the curative effect was satisfactory.
结果：手术过程视野清晰，出血少，疗效满意，均未出现严重并发症。
Results: the procedure has clear vision, with less bleeding. And the curative effect was satisfactory.
结果：手术过程视野清晰，出血少，疗效满意，均未出现严重并发症。
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