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  • Title: Randomized comparison of the four-hook anchor device and hook-wire use for the preoperative localization of pulmonary nodules.
    Author: Zhang X, Tsauo J, Tian P, Zhao L, Peng Q, Li X, Li J, Zhang F, Zhao H, Li Y, Tan F, Li X.
    Journal: J Thorac Cardiovasc Surg; 2024 Feb; 167(2):498-507.e2. PubMed ID: 37301252.
    Abstract:
    OBJECTIVE: To compare the efficacy and safety of preoperative localization of small pulmonary nodules (SPNs) with 4-hook anchor device and hook-wire before video-assisted thoracoscopic surgery. METHODS: Patients with SPNs scheduled for computed tomography-guided nodule localization before video-assisted thoracoscopic surgery between May 2021 and June 2021 at our center were randomized to either 4-hook anchor group or hook-wire group. The primary end point was intraoperative localization success. RESULTS: After randomization, 28 patients with 34 SPNs were assigned to the 4-hook anchor group and 28 patients with 34 SPNs to the hook-wire group. The operative localization success rate was significantly greater in the 4-hook anchor group than in the hook-wire group (94.1% [32/34] vs 64.7% [22/34]; P = .007). All lesions in the 2 groups were successfully resected under thoracoscopy, but 4 patients in the hook-wire group who required transition from wedge resection to segmentectomy or lobectomy because of unsuccessful localization. Total localization-related complication rate was significantly lower in the 4-hook anchor group than in the hook-wire group (10.3% [3/28] vs 50.0% [14/28]; P = .004). The rate of chest pain requiring analgesia after the localization procedure was significantly lower in the 4-hook anchor group than in the hook-wire group (0 vs 5/28, 17.9%; P = .026). There were no significant differences in localization technical success rate, operative blood loss, hospital stay length and hospital cost between the 2 groups (all P > .05). CONCLUSIONS: The use of the 4-hook anchor device for SPN localization offers advantages over the traditional hook-wire technique.
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