Sediment Records of Polybrominated Diphenyl Ethers (PBDEs) from the Anhui Province Section of Yangtze River, China.

This study investigated the temporal changes of PBDEs in the sediment cores from the Anhui Province section of Yangtze River (YR), China. The dramatic increase of ∑Br3-Br9-BDEs and BDE-209 concentrations in cores in the period of ca. 1990-2008 was consistent with the booming of regional and national production and consumption of household appliances and electronics. Following declines in BDE-209 and ∑Br3-Br9-BDEs concentrations can be associated with the deceasing use of legacy commercial PBDE mixtures in recent years. Compared with the different regions around the world, sediments in the YR were moderately polluted by PBDEs. The levels and the detection rates of BDE-209 were highest among the detected PBDEs single congener. The composition analysis indicated that Deca-BDE, Octa-BDE, and Penta-BDE were the dominant forms in the YR. The increasing trends of both BDE-209 and ∑Br3-Br9-BDEs in the YR during 1990s and 2000s largely reflected the time periods for transferring PBDE sources from the developed countries to China. TOC and finer particles were strongly correlated with distributions of PBDEs in sediments.

New treatment of bronchopleural fistula following surgical resection of the dorsal segment of the left lower lobe: A case report.

Anatomical segment-based or subsegmental resection for early lung cancer surgery has been used in selected cases, although postoperative complications of bronchopleural fistula sometimes occur. Persistent air leaks can cause complications such as empyema and aspiration pneumonia, resulting in prolonged patient hospitalization. The traditional treatment for postoperative bronchopleural fistula is reoperation, but the advent of bronchoscopic interventional therapy usually prevents patients from needing a second operation. This article details a case of thoracoscopic segmentectomy of the left lower lung dorsal segment resulting in residual subsegmental pleural fistula, and because the use of pleural adhesives made the patient's fistula inappropriate for surgical repair, we finally used bronchoscopic injury of the airway mucosa combined with an absorbable gelatin sponge and an autologous blood closure method for successful treatment.

A Pilot Study of a Novel through-the-Scope Self-Expandable Metallic Airway Stents Delivery System in Malignant Central Airway Obstruction.

Objective: Self-expandable metallic (SEM) airway stents are an important approach to malignant central airway obstruction (CAO). SEM airway stent insertions are usually performed under fluoroscopic guidance over a guide wire placed through a flexible bronchoscope often resulting in a longer procedure time and exposure to radiation. In this pilot study, we designed a novel delivery system of the through-the-scope (TTS) SEM airway stent insertion and observed its feasibility. Methods: From Jan 2015 to Sept 2016, 25 consecutive patients with inoperable malignant CAO were enrolled requiring airway stent implantation. All patients were followed up to death or at least 6 months. Results: 36 TTS stents were inserted into 25 patients using a flexible bronchoscope under general anesthesia or local anesthesia. All stents were successfully deployed directly through the working channel (2.8 mm diameter) of the flexible bronchoscope in 91.7% (33/36) of the subjects. The mMRC score and stenosis grade improved significantly after stent implantation. The common stent-related complications were secretion retention (25%, 9/36), development of granulation tissue (13.9%, 5/36), tumor in-growth (13.9%, 5/36), and hemoptysis (8.3%, 3/36). The 6-month overall survival (OS) was 44% (11/25). Conclusion: The novel TTS stent release system was an effective and safe approach in malignant central airway obstruction.