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  • Title: Computed tomography-guided dual localization with microcoil and patent blue vital dye for deep-seated pulmonary nodules in thoracoscopic surgery.
    Author: Lin CW, Ko HJ, Yang SM, Chen YC, Ko WC, Huang HC, Chen JS, Chang YC.
    Journal: J Formos Med Assoc; 2019 Jun; 118(6):979-985. PubMed ID: 30862403.
    Abstract:
    BACKGROUND/PURPOSE: In video-assisted thoracic surgery (VATS) resection of small lung nodules, preoperative dye marking around the visceral pleura provides surface localization to help initiate resection, while implantation of a fiducial marker such as a microcoil can provide inner localization to aid nodule resection under fluoroscopic guidance. We aimed to determine whether dual localization with microcoil placement and dye marking is safe and useful for guiding the resection of small deep-seated lung nodules. METHODS: We retrospectively evaluated data pertaining to 39 consecutive patients (40 nodules) managed between January 2016 and December 2017 in our hospital. Dual localization with patent blue V dye and microcoil was performed preoperatively because the pulmonary nodules were expected to be difficult to visualize or palpate intraoperatively. The patients underwent computed tomography-guided dual localization in a single puncture and were then transferred to the operation room. Intraoperative fluoroscopy was used to ensure that the lung tissue resected included the microcoil. RESULTS: All 40 lesions were successfully resected using the dual localization technique followed by fluoroscopy-assisted thoracoscopic surgery. The median lesion diameter and depth were 0.9 and 1.7 cm, respectively, while the median margin/diameter ratio in the first resected specimen was 1.25. One patient had failure of localization due to partial release of the microcoil into the chest wall. Localization-related pneumothorax was detected in six of 39 patients (15.4%) and was always self-limited. CONCLUSION: Dual localization with microcoil placement and dye marking is safe and supports successful VATS resection of small deep-seated lung nodules.
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