Objective: The study aims to conduct lung cancer screening by low-dose CT to identify the nature of the pulmonary nodule. The purpose of this study was to evaluate the role of preoperative medical EC glue localization of pulmonary nodules of uncertain nature by minimally invasive surgical resection.
Methods: From December 2017 to December 2019, 18 patients (12 women, 6 men; median age: 54 years)with pulmonary nodules were located using medical EC glue under the guidance of preoperative CT and then resected under video thoracoscopy at Air Force Medical Center of PLA. The clinical characteristics were retrospectively collected to evaluate the effectiveness, safety and feasibility of the operation.
Results: The mean value of the maximum diameter of pulmonary nodules on CT images before the operation was 10.8 mm. The average depth was 10.3 mm (1.0-39.5 mm). Among 18 nodules, 8 were pure ground glass nodules, 3 were solid nodules, and 7 were partial solid nodules. The diagnosis rate of medical glue localization under the guidance of CT after the operation was 100%. Postoperative pathological diagnosis showed that there were 10 cases of primary lung adenocarcinoma, 1 case of invasive lung adenocarcinoma, 3 cases of adenocarcinoma in situ, 1 case of metastatic adenocarcinoma, and 3 cases of benign nodules. No obvious serious complications were found after localization.
Conclusion: This study suggests that CT-guided percutaneous medical EC glue localization is a reliable, safe, feasible and practical method for undiagnosed pulmonary nodules and can significantly improve the rate of resection of small pulmonary nodules. Furthermore, it was considered to be more reasonable to remove pulmonary nodules and maximize the preservation of lung function.
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