PROSPECTIVE, RANDOMIZED COMPARISON OF DISPOSABLE AND REUSABLE BIOPSY FORCEPS IN GASTROINTESTINAL ENDOSCOPY
PROSPECTIVE, RANDOMIZED COMPARISON OF DISPOSABLE AND REUSABLE BIOPSY FORCEPS IN GASTROINTESTINAL ENDOSCOPY
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DOI：
10.1016/s0016-5107(94)70107-5
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发表时间：
1994-11-01
影响因子：
7.7
通讯作者：
LAINE, L
中科院分区：
文献类型：
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作者：
YANG, R;NARITOKU, W;LAINE, L
我们前瞻性比较了不同尺寸和配置的可重复使用和一次性不锈钢活检钳获得的活检标本。使用了6种类型的镊子：（1）超大型可重复使用镊子，（2）超大型一次性镊子（带Teflon护套），（3）常规可重复使用镊子，（4）常规一次性镊子（带Teflon护套），（5）常规长钳口一次性镊子，和6）常规长钳口一次性镊子（带Teflon护套）。“巨型”活检钳是指需要至少3.3 mm内镜活检通道的活检钳。“常规”活检钳是指仅需要2.8 mm通道的活检钳。用六个镊子中的每一个从外观正常的胃、十二指肠和乙状结肠获得两个活检标本（每个位置25组）。由一名病理学家对混合和编码标本的体积（高度、宽度和长度）和组织学深度进行评分。可重复使用和一次性使用的巨型活检钳获得的活检标本体积（分别为30 +/- 1 mm（3）和33 +/- 1 mm（3））和组织学深度（分别为3.3 +/- 0.1和3.5 +/- 0.1）相似。相比之下，常规尺寸活检钳获得的标本体积只有巨型活检钳的一半（可重复使用，13 +/- 1 mm（3）;一次性使用，带Teflon护套，15 +/- 1 mm（3）;长钳口，16 +/- 1 mm（2）;带Teflon护套的长钳口，17 +/- 1 mm（3））。然而，用常规一次性镊子获得的标本的组织学深度与用巨型镊子获得的标本相同。常规可重复使用的活检钳产生的标本具有最小的总体积和组织学深度。我们的结论是，一次性镊子等同于可重复使用的镊子，这两种类型可以互换使用，在胃肠道内窥镜检查。我们建议尽可能使用巨型活检钳，因为它们提供的活检标本是普通活检钳的两倍。
We prospectively compared biopsy specimens obtained with reusable and disposable stainless steel biopsy forceps of varying sizes and configurations. Six types of forceps were used: (1) jumbo reusable forceps, (2) jumbo disposable forceps with a Teflon sheath, (3) regular reusable forceps, (4) regular disposable forceps with a Teflon sheath, (5) regular long-jaw disposable forceps, and 6) regular long-jaw disposable forceps with a Teflon sheath. ''Jumbo'' forceps were those requiring an endoscopic biopsy channel of at least 3.3 mm. ''Regular'' forceps were those requiring only a 2.8-mm channel. Two biopsy specimens were obtained with each of the six forceps from normal-appearing stomach, duodenum, and sigmoid colon (25 sets at each location). Mixed and coded specimens were scored by a single pathologist for volume (height, width, and length) and histologic depth. Reusable and disposable jumbo forceps yielded biopsy specimens of similar volumes (30 +/- 1 mm(3) and 33 +/- 1 mm(3), respectively) and histologic depth (grades of 3.3 +/- 0.1 and 3.5 +/- 0.1, respectively). In comparison, the regular-sized biopsy forceps gave specimens with half the volume of those obtained by the jumbo forceps (reusable, 13 +/- 1 mm(3); disposable with Teflon sheath, 15 +/- 1 mm(3); long-jaw, 16 +/- 1 mm(2); and long-jaw with Teflon sheath, 17 +/- 1 mm(3)). However, the histologic depths of specimens obtained with the regular disposable forceps were the same as those of specimens obtained with the jumbo forceps. Regular reusable biopsy forceps yielded specimens with the smallest overall volume and histologic depth. We conclude that disposable forceps are equivalent to reusable forceps and that the two types can be used interchangeably in gastrointestinal endoscopy. We recommend the use of jumbo forceps whenever possible because they provide biopsy specimens that are double the size of those obtained with regular forceps.