Design and Optimization Strategies of a High-Performance Vented Box.

This study aims to solve the problems of air flow chaos and poor performance in a vented box caused by the heterogeneous distribution of airflow through the design of the internal structure of the vented box with constant energy consumption. The final goal is to evenly distribute the airflow inside the vented box. Sensitivity analysis was performed for three structural parameters: the number of pipes, the number of holes in the middle pipe, and the number of each increment from the inside to the outside pipe. A total of 16 random array sets of three structural parameters with four levels were determined using the orthogonal experimental design. Commercial software was used for the construction of a 3D model for the selected experimental points, and this data was used to obtain the airflow velocities, which were then used to obtain the standard deviation of each experimental point. According to the range analysis, the combination of the three structural parameters was optimized. In other words, an efficient and economical optimization method considering the performance of the vented box was established, and it could be widely used to extend the storage time of fresh food.

Erratum: Self-made thoracic needled suspending device with a snare: An excellent aid for uniportal video-assisted thoracic lobectomy and segmentectomy for lung cancer.

[This corrects the article DOI: 10.3892/ol.2019.10030.].

Surgical management of organizing pneumonia: a retrospective study of 24 cases in a single Centre.

BACKGROUND: Organizing pneumonia (OP) is a rare disease that is often easily misdiagnosed as a malignancy. The diagnosis of OP can prove quite challenging. Patients typically receive treatment with high-dose corticosteroids. Relapse is common if corticosteroid treatment is reduced or stopped. However, given that long-term corticosteroid treatment often results in significant side-effects, the aim of this study was to discuss the diagnosis and surgical treatment of OP. MATERIAL AND METHODS: The medical records of 24 patients with pathologically diagnosed OP between October 2007 and January 2019 were retrospectively reviewed. All patients underwent thoracic computed tomography (CT) and transbronchial biopsy or CT-guided percutaneous needle aspiration. We analysed the clinical manifestations, radiological findings, diagnostic methods, treatment, and follow-up outcomes of all patients. RESULTS: In total, 24 patients with OP were identified. The study included 17 (70.8%) men and 7 (29.2%) women, and the mean age was 61.25 ± 11.33 years (range: 31-82). The most common symptom was cough (n = 16; 66.6%), and the most common radiological finding was consolidation (n = 13; 54.2%) on thoracic CT. The diagnosis of OP was made by transbronchial biopsy in 11 patients (45.8%), and percutaneous needle aspiration biopsy in 13 (54.2%). We performed 11 wedge resections, 9 segmentectomy, and 4 lobectomies. Twenty patients underwent video-assisted thoracoscopic surgery (VATS), and 4 underwent thoracotomy. Complete lesion resection was obtained in all patients, and all patients were discharged from the hospital between 5 and 11 days after surgery. The mean follow-up period was 59.1 ± 34.5 (range: 2-134) months. Residual lesions or local or distant recurrence were not observed. CONCLUSIONS: OP is a rare disease, and the exact aetiology remains unclear. Preoperative diagnosis is difficult to achieve despite the use of transbronchial biopsy or CT-guided percutaneous needle aspiration. Complete surgical resection represents an effective method for the treatment of OP.

Esophageal adenocarcinoma with leukemoid reaction: a case report.

BACKGROUND: Leukemoid reaction (LR) is defined as a reactive leucocytosis with WBC counts exceeding 50,000/mm3, and a significant increase in early neutrophil precursors. LR may be a paraneoplastic manifestation of various malignant tumors. Tumor-related LR is a kind of neoplastic syndrome, unrelated to an infection or other diseases. CASE PRESENTATION: A 74-year-old male visited a local doctor with a 20-day history of progressive dysphagia. The complete blood count revealed leucocytosis. Bone marrow aspirates and a biopsy confirmed LR and excluded chronic myelogenous leukemia. Following radical esophagectomy for an adenocarcinoma the WBC counts successively decreased to 10,450/mm3 and 8670/mm3 within 1 week and 1 month, respectively. CONCLUSION: We report a rare case of esophageal adenocarcinoma complicated with excessive leucocytosis caused by paraneoplastic LR; we also present a review of literature and an investigation of the clinical features. To our knowledge, this is the first report of LR associated with esophageal adenocarcinoma.

Self-made thoracic needled suspending device with a snare: An excellent aid for uniportal video-assisted thoracic lobectomy and segmentectomy for lung cancer.

Safety and feasibility of the self-made thoracic needled suspending device with a snare in the uniportal video-assisted thoracic lobectomy and segmentectomy for the treatment of non-small cell lung cancer were explored. In total, 80 pulmonary lung major resections (including lobectomy and segmental resections) with systematic mediastinal lymphadenectomy were retrospectively analyzed. Patients were randomly divided into an observation group and a control group. In the observation group, the device was used to hang affected lungs, left and right vagus nerve at the level of tracheal bifurcation, the arch of azygos vein, left phrenic nerve and left and right bronchus on the chest wall to offer a better exposure of the operation field. In the control group, the conventional uniportal video-assisted thoracic surgery was performed without using the self-made device. Systematic mediastinal lymphadenectomy was performed in both groups. Operation time, intraoperative blood loss, postoperative extubation time, hospital stay and perioperative complications in the early stage of patients in both groups were compared. The operation time 120.2±40.32 min, intraoperative blood loss 100.51±50.23 ml, and postoperative suction drainage volume 208±97.56 ml/day in the observation group were significantly different from those in the control group (P<0.05), and there were no significant differences in postoperative extubation time, hospital stay and perioperative complications between the two groups (P>0.05). The self-made thoracic needled suspending device with a snare is an excellent helper for uniportal video-assisted thoracic surgery, because it helps to expose surgical field and has no postoperative cicatrisation at puncture point on the wall of the chest. The device and its use are worthy of promotion.