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首页> 外文期刊>Endoscopy International Open >Clinical significance of the muscle-retracting sign during colorectal endoscopic submucosal dissection
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Clinical significance of the muscle-retracting sign during colorectal endoscopic submucosal dissection

机译：大肠内镜黏膜下剥离术中肌肉收缩征的临床意义

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Background and study aims: During colorectal endoscopic submucosal dissection (ESD), the feature of a muscle layer being pulled toward a neoplastic tumor is sometimes detected. We call this feature the muscle-retracting sign (MR sign). The aim of this study was to evaluate whether the MR sign is associated with particular types of neoplastic lesions and whether it has any clinical significance for ESD sessions. Patients and methods: A total of 329 patients underwent ESD for 357 colorectal neoplasms. The frequency of positivity for the MR sign was evaluated in different morphologic and histopathologic types of neoplasm. The success rate of complete resection and the incidence of complications were also evaluated according to whether lesions were positive or negative for the MR sign. Results: The rates of positivity for the MR sign in the various lesion types were as follows: laterally spreading tumor?–?granular nodular mixed type (LST-G-M), 9.6?%; laterally spreading tumor?–?granular homogeneous type (LST-G-H) and laterally spreading tumor?–?nongranular type (LST-NG), 0?%; sessile type, 41.2?%. The resection rate was 100?% (329?/329) in lesions negative for the MR sign; however, it was 64.3?% (18?/28) in lesions positive for the MR sign, which was significantly lower (P?
机译：背景和研究目的：在结直肠内窥镜黏膜下剥离术（ESD）期间，有时会检测到肌肉层被拉向肿瘤的特征。我们称此功能为肌肉收缩标志（MR标志）。这项研究的目的是评估MR体征是否与特定类型的赘生性病变有关，以及它对ESD疗程是否具有任何临床意义。患者和方法：共有329例患者接受了357例大肠肿瘤的ESD治疗。在不同的形态学和组织病理学类型的肿瘤中评估了MR征兆的阳性频率。还根据MR征的病变是阳性还是阴性来评估完全切除的成功率和并发症的发生率。结果：在各种病变类型中，MR征的阳性率如下：横向扩散的肿瘤β-颗粒状结节性混合型（LST-G-M）为9.6％。侧向扩散性肿瘤β-颗粒均匀型（LST-G-H）和侧向扩散性肿瘤β-非颗粒型（LST-NG），0％;无柄型，占41.2％。 MR征阴性的病灶的切除率为100％（329％/ 329）。然而，MR征阳性的病变占64.3％（18？/ 28），显着降低（P 0.001）。结论：MR征象仅出现在一些突出的病灶中，更重要的是，它与通过ESD彻底清除肿瘤的高风险有关。我们的数据表明，MR征象阳性的病灶应谨慎解剖。或者，根据个别情况的特点，应考虑改用手术以使患者受益。

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