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Konradsen Lemming posted an update 6 months, 2 weeks ago
The prevalence of chronic obstructive pulmonary disease (COPD) in Suzhou remains still unknown. The aim of this study was to quantify the disease burden and assess the risk factors of COPD.
This was a population-based, cross-sectional study of adults aged 40 years and older in Suzhou. A total of 4,864 adults were identified from June 2018 to December 2018 and 4,725 adults were finally recruited. Subjects underwent post-bronchodilator spirometry and were diagnosed according to the 2018 Global Initiative for Chronic Obstructive Lung Disease (GOLD).
The data from 4,725 adults were ultimately included in the final analysis. The overall prevalence of COPD in subjects aged 40 and older was 12.4%, while it was 12.3% in men and 12.5% in women. Risk factors identified by multivariable logistic analysis were age (P<0.05, OR =2.29, 95% CI, 1.83-2.88) and underweight (BMI <18.5 kg/m
) (P<0.05, OR =1.57, 95% CI, 1.01-2.44). COPD patients also displayed weaker grip strength (P<0.001). Approximately half he onset of respiratory symptoms. Therefore, spirometry screening is essential for the early detection and management of COPD.
The study is designed to explore the chest CT features of different clinical types of coronavirus disease 2019 (COVID-19) pneumonia based on a Chinese multicenter dataset using an artificial intelligence (AI) system.
A total of 164 patients confirmed COVID-19 were retrospectively enrolled from 6 hospitals. All patients were divided into the mild type (136 cases) and the severe type (28 cases) according to their clinical manifestations. The total CT severity score and quantitative CT features were calculated by AI pneumonia detection and evaluation system with correction by radiologists. The clinical and CT imaging features of different types were analyzed.
It was observed that patients in the severe type group were older than the mild type group. Round lesions, Fan-shaped lesions, crazy-paving pattern, fibrosis, “white lung”, pleural thickening, pleural indentation, mediastinal lymphadenectasis were more common in the CT images of severe patients than in the mild ones. A higher total lung severity score and scores of each lobe were observed in the severe group, with higher scores in bilateral lower lobes of both groups. Further analysis showed that the volume and number of pneumonia lesions and consolidation lesions in overall lung were higher in the severe group, and showed a wider distribution in the lower lobes of bilateral lung in both groups.
Chest CT of patients with severe COVID-19 pneumonia showed more consolidative and progressive lesions. With the assistance of AI, CT could evaluate the clinical severity of COVID-19 pneumonia more precisely and help the early diagnosis and surveillance of the patients.
Chest CT of patients with severe COVID-19 pneumonia showed more consolidative and progressive lesions. With the assistance of AI, CT could evaluate the clinical severity of COVID-19 pneumonia more precisely and help the early diagnosis and surveillance of the patients.
Although neoadjuvant chemotherapy could improve survival outcome in resectable non-small cell lung cancer (NSCLC), the efficacy of neoadjuvant targeted therapy is still unclear.
We retrospectively reviewed clinical records of stage I-IIIA lung adenocarcinoma patients treated with neoadjuvant targeted therapy or chemotherapy prior to surgery. The collected data were compared between the two groups. Tumor samples were collected and analyzed by sequencing to explore the epidermal growth factor receptor-tyrosine kinase inhibitor (EGFR-TKI) resistance mechanisms.
A total of 134 patients were enrolled; of these, 119 (88.8%) had clinical stage II-IIIA disease. Radiographic response rate was significantly higher with neoadjuvant targeted therapy than with chemotherapy among patients harboring EGFR mutation . EGFR exon 19 deletion achieved better tumor response than those with exon 21 L858R mutation (ORR 70.0%
40.0%; P=0.057). Postoperative complications,conventional chemotherapy for EGFR-mutant NSCLC patients. This study provides evidence that needs to be investigated further in randomized controlled trials (RCT).
Maximal oxygen consumption (V
O
) is the most frequently used variable to determine postoperative risk in patients with non-small cell lung cancer (NSCLC), however patients frequently cannot provide the necessary maximum effort to ensure the validity of the V
O
measurements. The aim of this observational study was to assess exercise-limiting factors and the rate of achievement of the currently recommended maximality criteria in patients with NSCLC who had been routinely referred for cardiopulmonary exercise testing (CPET) to assess their postoperative risk.
Patient data, including peak exercise variables and markers used to designate the exercise test as maximal, were retrospectively analysed from 203 preoperative CPET assessments that were performed at Rouen University Hospital from January 2014 until July 2019.
Ventilatory limitation was the most common physiological cause of exercise cessation. A total of 62 patients (or 30.5%) achieved either one, or no, markers of maximality. The mean duration of the incremental phase (after the 3-minute warm-up) was 5.1±2 minutes.
About 30% of the patients in this study did not generate maximum effort during CPET. As a result, it is likely that their V
O
was underestimated and that their post-operative risk was overestimated. It is therefore important to incorporate strategies to verify V
O
results for patients with
close to the risk threshold.
About 30% of the patients in this study did not generate maximum effort during CPET. As a result, it is likely that their V˙ O2peak was underestimated and that their post-operative risk was overestimated. It is therefore important to incorporate strategies to verify V˙ O2peak results for patients with values close to the risk threshold.
Epidemiological evidence suggested that systemic lupus erythematosus (SLE) might be correlated with an increased risk of lung cancer. Selleckchem Reversan Nevertheless, few studies have comprehensively investigated their correlation and the causal effect remains unclear. With a meta-analysis and Mendelian randomization (MR) approach, we were able to systematically investigate the relationship between SLE and lung cancer risk.
A systematic search of cohort studies was conducted using network databases from the inception dates to February 1, 2020. Meta-analysis was performed to calculate standardized incidence rate (SIR) and their 95% CI. Furthermore, utilizing 33 SLE-related single nucleotide polymorphisms as instrumental variables (IVs) identified by the latest genome-wide association studies (GWASs), we investigated the correlation between genetically predisposed SLE and lung cancer risk using summary statistics from the International Lung Cancer Consortium (11,348 cases and 15,861 controls). The Inverse variance-weighted method was applied to estimate the causality and we further evaluated the pleiotropy by means of the weighted median and the MR-Egger regression method.