ArticleJournal of thoracic disease2024
Use of a novel claw-suture technique for localization of solitary pulmonary nodules: retrospective study and experience from one center.
Article in Journal of thoracic disease, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Background: Video-assisted thoracoscopic surgery (VATS) is more effective for diagnosing and treating solitary pulmonary nodules (SPNs). It is sometimes difficult to localize through use of minimally invasive techniques. We evaluated the feasibility, effectiveness, and safety of a novel localization method for SPNs. Here, we describe our technical process, perioperative results, and accumulated experience over the years. Methods: Between February 2018 and April 2023, a retrospective study of a novel claw-suture localization technique was conducted in a single center. A total of 490 patients participating in the localization of preoperative SPNs were enrolled. An anchor claw device with four hooks and three-colored sutures was used for localizing nodules under computed tomography (CT). We then evaluated the localization process and the outcomes of the operative procedure (success rate, safety, feasibility, and patient comfort). Results: A total of 510 SPNs were localized before surgery, and the median size of the nodules was 0.70 cm (range, 0.4-2.0 cm). Additionally, 97.1% of these nodules (495 of 510) were localized successfully without dislodgment or device fracture. Types of failures included not meeting the target value of the distance between the claw and lesion (n=12, 2.4%) and displacement of the device (n=3, 0.6%). Pneumothorax (n=63, 12.4%), parenchymal hemorrhage (n=46, 9.0%), and hemothorax (n=1, 0.2%) were the most common complications that did not require further medical treatment. Pleural reactions were reported in 2 patients (0.4%). A notable correlation was also found between the depth of the pulmonary nodules and the incidence of parenchymal hemorrhage (P<0.001). The median length for the entire process was 12 minutes (7-25 minutes). No patients reported significant pain during the localization process, and the device was retrieved with a 100% survival rate after VATS resection. Conclusions: This method of claw-suture localization is safe, effective, and feasible and can be used to localize SPNs that are challenging to locate before operation.
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