Fire performance of CFRP-strengthened piloti-type columns with fire-resistant materials during standard fire exposure.

This paper presents a numerical investigation into the fire endurance of carbon fiber reinforced polymer (CFRP)-strengthened columns, shielded with fire-resistant materials, in piloti-type reinforced concrete buildings. The strengthened column, equipped with a fire protection system, underwent exposure to the ASTM E119 standard time-temperature curve for a duration of 4 h. To comprehensively evaluate the thermal and structural performance of the strengthened column at elevated temperatures and substantiate the effectiveness of the fire protection system, a fully coupled thermal-stress analysis was conducted.

Video-assisted thoracic surgery for spontaneous pneumothorax under two-lung ventilation and single-lumen endotracheal tube intubation.

Background: This study investigated the feasibility of video-assisted thoracic surgery (VATS) performed under two-lung ventilation (TLV) and single-lumen endotracheal tube (SLET) intubation in patients with spontaneous pneumothorax.

Methods: From January 2016 to December 2019, 344 patients who underwent VATS with spontaneous pneumothorax, whether primary or secondary, were enrolled. The surgery was performed through TLV using SLET intubation or one-lung ventilation (OLV) using double-lumen endotracheal tube (DLET) intubation.

Delayed Sternal Closure Using a Vacuum-Assisted Closure System in Adult Cardiac Surgery.

Background: Delayed sternal closure (DSC) is a useful option for patients with intractable bleeding and hemodynamic instability due to prolonged cardiopulmonary bypass and a preoperative bleeding tendency. Vacuum-assisted closure (VAC) has been widely used for sternal wound problems, but only rarely for DSC, and its efficacy for mediastinal drainage immediately after cardiac surgery has not been well established. Therefore, we evaluated the usefulness of DSC using VAC in adult cardiac surgery.

Predictive factors for invasive adenocarcinoma in patients with clinical non-invasive or minimally invasive lung cancer.

Background: Pure ground glass opacity (GGO) or part-solid GGO with small solid component (≤5 mm) are likely to be non-invasive or minimally invasive lung cancer. However, those lesions sometimes are diagnosed as invasive adenocarcinoma postoperatively. The aim of this study was to determine the predictors of invasive adenocarcinoma in clinical non- or minimally invasive lung cancer.