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Comparison of hook wire and microcoil preoperative localisation in subsolid pulmonary nodules: a retrospective analysis.

Clin Radiol

December 2024

Department of Nuclear Medicine, Minimally Invasive Intervention and Radioactive Particle Therapy Center, The First Affiliated Hospital of the Army Medical University, Chongqing, 400038, China. Electronic address:

Aim: Subsolid nodules are increasingly detected during physical examinations with computed tomography (CT) scan and video-assisted thoracoscopic surgery (VATS) is the standard treatment. This study compared the effectiveness of preoperative localisation of subsolid pulmonary nodules using a hook-wire and a microcoil under CT guidance prior to VATS.

Materials And Methods: Patients with solitary subsolid pulmonary nodules (n = 342) underwent percutaneous puncture localisation guided by CT before VATS.

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Purpose: The underlying mechanism why segmentectomy has demonstrated the non-inferiority to lobectomy in several randomized trials remains unclear. Computed tomography (CT)-measured pulmonary artery (PA) enlargement reflects PA pressure and predicts the prognosis of certain respiratory diseases. We compared the preoperative and postoperative PA diameter to the ascending aorta diameter (PA/A) ratio, investigating its impact on right ventricular function in lung resection.

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Background: While recent randomized controlled trials have demonstrated that sublobar resection is non-inferior to lobectomy, the comparative efficacy of these procedures remains uncertain for early-stage non-small cell lung cancer (NSCLC; ≤ 3 cm) exhibiting invasive features postoperatively, such as visceral pleural invasion (VPI) or spread through air spaces (STAS).

Materials And Methods: To identify eligible studies, a comprehensive search of PubMed, Embase, MEDLINE, the Cochrane Library, and Web of Science was conducted through 25 July 2024. Studies were screened according to predefined criteria in accordance with PRISMA guidelines.

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Background: The localization of pulmonary nodules is crucial for surgical intervention. However, a safe, simple, and efficient method remains elusive. This study aims to evaluate the safety and feasibility of a newly developed preoperative localization method for pulmonary nodules called Rapid Localization of Pulmonary Nodules On-Site (RLPN-OS).

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Objectives: We previously did a randomized clinical trial of lobectomy by VATS or thoracotomy for early-stage lung cancer and found that patients who underwent VATS had less postoperative pain and better quality of life compared with thoracotomy. VATS has since been regarded the preferred surgical method for early-stage lung cancer. It is assumed that long-term survival is not influenced by surgical approach, but this assumption primarily rests on non-randomized comparative studies.

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