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Regarding pregnancy-related VTE risk scores, there were 7520 patients in the low-risk group with a prenatal score less then 3 points and 239 in the high-risk group with a score ≥ 3, and 44 patients received drug prevention and treatment during pregnancy. There were 4223 patients in the low-risk group with a postpartum score less then 2 points and 3536 in the high-risk group with a score ≥ 2 points, and 824 patients received drug prevention and treatment for 10 d. Among the patients who did not present with VTE before delivery, we found one case each of pulmonary embolism secondary to lower extremity venous thrombosis, intracranial venous sinus thrombosis, and asymptomatic lower extremity venous thrombosis during the postpartum follow-up. Conclusion VTE poses a serious threat to maternal safety, and the society should increase its vigilance against pregnancy-related VTE.Background Postoperative unobstructed drainage is an important measure for avoiding hematoma formation and preventing complications from anterior cervical surgery. Aim To discuss the characteristics and key points of clinical management of two types of commonly used negative pressure drainage systems in clinical settings. Methods Two types of commonly used silica gel negative pressure drainage balls and a type of gastrointestinal decompression apparatus were fully emptied and then injected with different amounts of water and air. Following this, the negative pressure values of the three devices were measured. Meanwhile, we undertook a retrospective analysis of the clinical data of 1328 patients who had been treated with different negative pressure drainage apparatuses during their anterior cervical surgery in our department between January 2007 and January 2018. Results As the amount of injected air or water increased, the negative pressure of the silica gel negative pressure drainage ball decreased rapidly, dropping to zero when 150 mL of water or air was injected. In contrast, the negative pressure of gastrointestinal decompression apparatus decreased slowly, maintaining an ideal value even when 300 mL of water or air was injected. And statistical analysis demonstrated that patients who had been treated with the gastrointestinal decompression apparatus were less likely to develop severe complications than those who had been treated with the silica gel negative pressure drainage ball (P less then 0.05). Conclusion This study showed that the gastrointestinal decompression apparatus has the advantages of large suction capacity, long duration of continuous negative pressure, and good drainage effect, all of which are the favorable factors for the use of this apparatus for negative pressure drainage in anterior cervical surgery.Background Claudin 7 is often abnormally expressed in cancers and promotes the progression of some malignancies. However, the role of claudin 7 in stage II colorectal cancer (CRC) has not been studied. Aim To assess the expression and prognostic value of claudin 7 in stage II CRC. Methods We retrospectively studied 231 stage II CRC patients who underwent radical surgery at our hospital from 2013 to 2014. The protein expression level of claudin 7 was assessed and its relationship with clinicopathological features and prognosis was statistically analyzed. The independent prognostic factors were identified by Cox proportional hazards models. A prognostic grading system was constructed to stratify the survival of CRC patients. Results The expression of claudin 7 was significantly reduced in cancer tissues compared with normal tissues (P less then 0.001), and its low expression was closely related to recurrence of the disease (P = 0.017). Multivariate analysis confirmed that claudin 7 low expression (claudin 7-low) (P = 0.028) and perineural invasion positivity (PNI+) (P = 0.026) were independent predictors of poor disease-free survival (DFS). A prognostic grading system based on the status of claudin 7 and PNI classified the patients into three prognostic grades grade A (claudin 7-high and PNI-), grade B (claudin 7-low and PNI-, claudin 7-high and PNI+), and grade C (claudin 7-low and PNI+). The DFS was significantly different among the three grades (grade B vs grade A, P = 0.032; grade C vs grade A, P less then 0.001; grade C vs grade B, P = 0.040). Conclusion Claudin 7 can be used as a new prognostic marker to predict the DFS of patients with stage II CRC. The prognostic grading system with the addition of claudin 7 can further improve prognosis stratification of patients.Background Bone transport and distraction osteogenesis has been widely used to treat bone defects after traumatic surgery, but, skin and soft tissue incarceration can be as high as 27.6%. Aim To investigate the efficacy of inserting a tissue expander to prevent soft tissue incarceration. Methods Between January 2016 and December 2018, 12 patients underwent implantation of a tissue expander in the subcutaneous layer in the vicinity of a tibial defect to maintain the soft tissue in position. A certain amount of normal saline was injected into the tissue expander during surgery and was then gradually extracted to shrink the expander during the course of transport distraction osteogenesis. The tissue expander was removed when the two ends of the tibial defect were close enough. Results In all 12 patients, the expanders remained intact in the subcutaneous layer of the bone defect area during the course of transport distraction osteogenesis. When bone transport was adequate, the expander was removed and the bone transport process was completed. During the whole process, there was no incarceration of skin and soft tissue in the bone defect area. Complications occurred in one patient, who experienced poor wound healing. Conclusion The pre-filled expander technique can effectively avoid soft tissue incarceration. The authors' primary success with this method indicates that it may be a valuable tool in the management of incarcerated soft tissue.Background The Helicobacter pylori (H. pylori) infection rate in China is approximately 50%. H. pylori is a pathogenic factor of peptic ulcer and chronic gastritis. In addition, H. pylori infection may also be associated with a variety of cardiovascular diseases in elderly people, such as arteriosclerosis, coronary heart disease, and cerebral infarction, having deleterious effect on their health. With the aging of the population, the disease characteristics of the elderly population have been increasingly valued by the whole society. We conducted an epidemiological survey of H. pylori infection among elderly people in Beijing to provide a basis for health management of H. pylori infection. Aim To understand the epidemiological characteristics of H. pylori infection in elderly people in Beijing. [https://www.selleckchem.com/products/ipi-549.html Eganelisib datasheet] Methods A total of 1090 elderly people aged more than 60 years from different parts of Beijing (urban and rural areas) were selected using the random cluster sampling method. Structured questionnaires were completed during home visits and the 13C-urea breath test was conducted for H.