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作者在透视下经直肠穿刺引流直肠前脓肿。用肛门镜扩张并保护肛管,以21号针穿刺,局部粘膜无需麻醉。吸出脓汁后,用0.018时导丝置于脓腔内,拿去穿刺针。由于豁口不稳固,用支持套管插进一6.3F 移行扩张器。它的一端逐渐变细为0.018时的导丝,并在其弯曲处有一可容纳0.038时导丝的侧孔。一旦位置满意,则以0.038时导丝代替它。该通路经聚四氟乙烯筋膜扩张器进一步扩大后,用支持套管很容易把一根8.2号或更大的自留导尿管插入进去并予固定,然后抽吸、冲洗脓腔。导管
The authors transrectal rectal drainage of rectal abscess under fluoroscopy. Use anoscope to dilate and protect the anal canal with a 21-gauge needle, without local anesthesia. Suction pus, with 0.018 when the guide wire placed in the abscess, take the needle. Due to unstable jaws, insert a 6.3F travel expander with support cannula. Its end tapers to a guidewire of 0.018 and has a lateral aperture at its bend that accommodates a guidewire of .038. Once the position is satisfactory, replace it with a guidewire at 0.038. After further expansion of the access through the Teflon fascia dilator, it is easy to insert and secure a retention catheter, size 8.2 or larger, with a support cannula, then aspirate and rinse the abscess. catheter