McAfee J H, Katon R M
Oregon Health Sciences University, Portland 97201-3098.
Gastrointest Endosc. 1994 May-Jun;40(3):301-3. doi: 10.1016/s0016-5107(94)70060-5.
The efficacy of two new tiny snares has been evaluated for removal of diminutive (7 mm or less) colorectal polyps. The small size of the snares facilitates direct placement over a polyp, after which resection can be performed using monopolar current. Data were prospectively collected on 183 polyps, 2 to 7 mm in diameter, encountered in 90 patients. Polyp diameter, location relative to the splenic flexure, and histologic characteristics were noted, as were retrieval rate and complications. Ninety-four percent of the polyps could be removed with a tiny snare, and 88% of these were recovered. Forty percent of the polyps were located proximal to the splenic flexure, and 69% were neoplastic. The only complication was major hemorrhage in 1 patient (0.5%), in whom snare polypectomy without current application was used. Tiny snares can effectively and safely be used to remove diminutive colorectal polyps, and they may make "hot biopsy" forceps obsolete.
已对两种新型微型圈套器切除微小（7毫米或更小）结直肠息肉的疗效进行了评估。圈套器尺寸小便于直接套住息肉，之后可使用单极电流进行切除。前瞻性收集了90例患者中遇到的183枚直径2至7毫米的息肉的数据。记录了息肉直径、相对于脾曲的位置、组织学特征以及取出率和并发症。94%的息肉可用微型圈套器切除，其中88%被回收。40%的息肉位于脾曲近端，69%为肿瘤性息肉。唯一的并发症是1例患者（0.5%）发生大出血，该患者采用了未施加电流的圈套器息肉切除术。微型圈套器可有效、安全地用于切除微小的结直肠息肉，它们可能会使“热活检”钳过时。
