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  • Title: Radiotracer localization of nonpalpable pulmonary nodules: A single-center experience.
    Author: Starnes SL, Wolujewicz M, Guitron J, Williams V, Scheler J, Ristagno R.
    Journal: J Thorac Cardiovasc Surg; 2018 Nov; 156(5):1986-1992. PubMed ID: 29778333.
    Abstract:
    OBJECTIVE: Multiple localization techniques to facilitate intraoperative identification of small or nonsolid pulmonary nodules have been developed. Radiotracer localization using technetium-labeled macroaggregated albumin has been our preferred localization method since 2009. We report our experience, including technical pitfalls and modifications, of our initial 77 patients who underwent this technique. METHODS: All patients undergoing preoperative radiotracer localization were identified from a prospective database. Medical records were retrospectively reviewed for patient demographic characteristics, nodule characteristics, procedure details, pathologic data, and outcomes. RESULTS: Seventy-seven patients underwent localization of 79 pulmonary nodules. Radiotracer localization had an overall success rate of 95%; however, 2 patients required a second localization procedure on the same day. Most failures occurred in nodules that were < 5 mm from the pleural surface, resulting in pleural spillage. Seventy-three patients underwent a diagnostic wedge resection, with 2 of these patients requiring 2 wedge resections. In 2 patients, the nodules were successfully localized; however, they were too deep for wedge resection and required anatomic resection. Two patients did not undergo resection. One patient developed pleural spillage and hemothorax and due to subsequent comorbidities, was never rescheduled. The second patient did not tolerate single-lung ventilation. The majority (86%) of lesions were malignant. Median length of stay was 2 days (range, 1-15 days). There was no 30-day mortality. The only morbidity was a prolonged air leak (>5 days) in 5 patients. CONCLUSIONS: Radiotracer localization is a simple and effective technique for intraoperative identification of small pulmonary nodules.
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