Purpose: To investigate the feasibility and effectiveness of in situ formation of the loop snare technique for retrieval of foreign bodies from vessels. Materials and methods: We retrospectively reviewed in situ forma...Purpose: To investigate the feasibility and effectiveness of in situ formation of the loop snare technique for retrieval of foreign bodies from vessels. Materials and methods: We retrospectively reviewed in situ formation of the loop snare technique for retrieval of foreign bodies in 6 patients. After placing the guide wire and the loop of the gooseneck snare on each side of the tubes, the soft tip of the guide wire was caught with the gooseneck snare to form a new loop structure. The foreign body was retrieved with the new loop snare by combining the gooseneck snare and the guide wire. We reviewed the application of this technique in 6 patients with fractured central venous catheters without free ends. Results: With in situ formation of the loop snare technique, the internal ruptured catheter was successfully removed from all of the 6 patients in about 2 to 4 min. There were no complications such as arrhythmia or heart valve injury in the 6 patients with the distal end of the fragment in the pulmonary artery or right atrium. Conclusion: The in situ formation loop snare technique is an effective and fast means of retrieving tubular foreign bodies without free ends from vessels. Further research is needed to investigate the practical utility of the method for retrieval of all kinds of foreign bodies.展开更多
AIM:To evaluate efficacy and safety of clip-and-snare method using pre-looping technique(CSM-PLT)for gastric endoscopic submucosal dissection(ESD).METHODS:In the CSM-PLT method,a clip attached to the lesion side was s...AIM:To evaluate efficacy and safety of clip-and-snare method using pre-looping technique(CSM-PLT)for gastric endoscopic submucosal dissection(ESD).METHODS:In the CSM-PLT method,a clip attached to the lesion side was strangulated with a snare,followed by application of an appropriate tension to the lesion independent of an endoscope.Twenty consecutive lesions were resected by ESD using CSM-PLT(CSM-PLT group)and compared with a control group,including20 lesions that were resected by conventional ESD.The control group was matched based on the size and location of the lesion,presence of pathologic fibrosis,and experience of endoscopists.Total procedure time of ESD,proportion of en bloc resection,and complications were analyzed.RESULTS:The total procedure time for the CSM-PLT group was significantly shorter than that for the control group(38.5 min vs 59.5 min,P=0.023);all lesions were resected en bloc by ESD.There was no significant difference in complications between the two groups.Moreover,there was no complication in the CSM-PLT group.In one large lesion(size:74 mm)that underwentextensive CSM-PLT during ESD,we used an additional CSM-PLT on another edge of the lesion after achieving submucosal resection to the maximum extent possible during initial CSM-PLT.In two lesions,the snare came off the lesion together with the clip after a sudden pull;nevertheless,ESD was successful in all lesions.CONCLUSION:CSM-PLT was an effective and safe method for gastric ESD.展开更多
基金funded by the National Natural Science Foundation of China(No.81471766)
文摘Purpose: To investigate the feasibility and effectiveness of in situ formation of the loop snare technique for retrieval of foreign bodies from vessels. Materials and methods: We retrospectively reviewed in situ formation of the loop snare technique for retrieval of foreign bodies in 6 patients. After placing the guide wire and the loop of the gooseneck snare on each side of the tubes, the soft tip of the guide wire was caught with the gooseneck snare to form a new loop structure. The foreign body was retrieved with the new loop snare by combining the gooseneck snare and the guide wire. We reviewed the application of this technique in 6 patients with fractured central venous catheters without free ends. Results: With in situ formation of the loop snare technique, the internal ruptured catheter was successfully removed from all of the 6 patients in about 2 to 4 min. There were no complications such as arrhythmia or heart valve injury in the 6 patients with the distal end of the fragment in the pulmonary artery or right atrium. Conclusion: The in situ formation loop snare technique is an effective and fast means of retrieving tubular foreign bodies without free ends from vessels. Further research is needed to investigate the practical utility of the method for retrieval of all kinds of foreign bodies.
文摘AIM:To evaluate efficacy and safety of clip-and-snare method using pre-looping technique(CSM-PLT)for gastric endoscopic submucosal dissection(ESD).METHODS:In the CSM-PLT method,a clip attached to the lesion side was strangulated with a snare,followed by application of an appropriate tension to the lesion independent of an endoscope.Twenty consecutive lesions were resected by ESD using CSM-PLT(CSM-PLT group)and compared with a control group,including20 lesions that were resected by conventional ESD.The control group was matched based on the size and location of the lesion,presence of pathologic fibrosis,and experience of endoscopists.Total procedure time of ESD,proportion of en bloc resection,and complications were analyzed.RESULTS:The total procedure time for the CSM-PLT group was significantly shorter than that for the control group(38.5 min vs 59.5 min,P=0.023);all lesions were resected en bloc by ESD.There was no significant difference in complications between the two groups.Moreover,there was no complication in the CSM-PLT group.In one large lesion(size:74 mm)that underwentextensive CSM-PLT during ESD,we used an additional CSM-PLT on another edge of the lesion after achieving submucosal resection to the maximum extent possible during initial CSM-PLT.In two lesions,the snare came off the lesion together with the clip after a sudden pull;nevertheless,ESD was successful in all lesions.CONCLUSION:CSM-PLT was an effective and safe method for gastric ESD.
