在钡灌肠检查过程中,由于部分病人有肛门失禁,所以通常应用充气的直肠胶囊导管以避免钡剂自肛门溢出。但是,有时由于胶囊导管应用不当有引起直肠损伤和掩盖直肠病变的可能性。因此,本文作者提出对直肠胶囊导管充气应当谨慎应用。直肠胶囊充气除增加病人的不适外,还有引起直肠损伤和穿孔的危险。胶囊的过度充气引起直肠壁紧张度明显增加,这样可使直肠粘膜撕裂引起出血或引起伴有钡剂外溢的症状明显的穿孔。胶囊突然破裂时,压力突然减小,使灌肠导管尖端和直肠粘膜之间形成一种剪力,而引起直肠的撕裂。直肠粘膜断裂的予后一般是好的,而且绝大多 During the barium enema examination, because some patients have anal incontinence, a gas-filled rectal capsule catheter is usually used to avoid ejaculation from the anus. However, there is sometimes the possibility of causing rectal injury and masking rectal lesions due to improper application of the capsule catheter. Therefore, the author of this paper proposes that the inflation of rectal capsule catheter should be applied with caution. In addition to increasing the patient’s discomfort, rectal capsules are inflated, as well as the risk of rectal injury and perforation. Over-inflation of the capsule causes a marked increase in the rectal wall tension, which can cause tearing of the rectal mucosa causing bleeding or causing the perforation with obvious symptoms of tincture spillage. When the capsule suddenly ruptures, the pressure suddenly decreases, causing a shear force between the tip of the enema catheter and the rectal mucosa, causing a tear in the rectum. After the rupture of the rectal mucosa is generally good, but most