野球における頭部外傷：ピッチングマシンによる頭部外傷

抄録

On baseball with large player population, severe head injuries have frequently occurred as compared with other sports. Since 2009 we treated six patients with severe head injuries on baseball, two of them underwent surgical treatment for the injuries, caused by pitching machine. Although the majority of baseball-related head injuries were caused by direct impact with the ball, the pitching machine that propelled high velocity ball is known to cause severe head injuries. We report here our pitching machine related head injury cases as warning.