Preoperative localization of small XXXX with a short hook wire and suture system: experience with 168 procedures.

@entity1 @entity548 @entity2 @entity358 @entity3750 @entity158
PURPOSE: To evaluate use of a short hook wire and suture system for preoperative localization of @entity358 . MATERIALS AND METHODS: Percutaneous localization of 168 lesions was performed with computed tomographic (CT) guidance in 150 @entity1 . @entity1 were classified into three groups: a 3-year early-learning experience of treatment of 40 lesions mainly in one institution (group A1), a more recent 4-year experience of treatment of 88 lesions in the same institution (group A2), and the roughly synchronous recent 3-year experience of treatment of 40 lesions in a different hospital (group B). RESULTS: The hook wire was successfully placed without dislodgment in 146 @entity1 , accounting for 164 (97.6%) of 168 lesions. Group A2 showed a success rate of 100%. There was no difference in @entity1 among the three groups in regard to size of lesions or their distance from the pleural surface. In @entity1 in groups @entity3750 , the proportion of nodules with ground-glass opacity and primary @entity2 at CT was significantly greater than that in @entity1 in group A1. In 168 placements, nonsymptomatic pneumothorax cases were observed in 54 (32.1%), @entity548 into the lung were observed in 25 (14.9%), and @entity548 into the pleural space was observed in one (0.6%). No @entity1 complained of notable @entity158 during or after the procedure, and no serious complication was experienced. Unsuccessful placement was caused by too shallow a puncture with the introducer needle. CONCLUSION: This system with a flexible suture for preoperative localization has a high success rate.
