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KMID : 0880420020030010030
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Korean Journal of Radiology
2002 Volume.3 No. 1 p.30 ~ p.37
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Tubular Foreign Body or Stent: Safe Retrieval or Repositioning Using the Coaxial Snare Technique
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Jin Wook Chung/Chang Kyu Seong
Yong Joo Kim/Jin Wook Chung/Seung Hyup Kim/Joon Koo Han/Hyun Beom Kim/Jae Hyung Park
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Abstract
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Objective: To evaluate the utility and advantages of the coaxial snare technique in the retrieval of tubular foreign bodies.
Materials and Methods: Using the coaxial snare technique, we attempted to retrieve tubular foreign bodies present in seven patients. The bodies were either stents which were malpositioned or had migrated from their correct position in the vascular system (n=2), a fragmented venous introducer sheath (n=1), fragmented drainage catheters in the biliary tree (n=2), or fractured external drainage
catheters in the urinary tract (n=2). After passing a guidewire and/or a dilator through the lumina of these foreign bodies, we introduced a loop snare over the guidewire or dilator, thus capturing and retrieving them.
Results: In all cases, it was possible to retrieve or reposition the various items, using a minimum-sized introducer sheath or a tract. No folding was involved. In no case were surgical procedures required, and no complications were encountered.
Conclusion: The coaxial snare technique, an application of the loop snare technique, is a useful and safe method for the retrieval of tubular foreign bodies, and one which involves minimal injury to the patient.
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KEYWORD
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Catheters and catheterization, complications, Foreign bodies, Interventional procedures,
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