Extensive hepatectomy can achieve a higher chance of radical resection of lesions in the hepatobiliary system, but the risk of fatal complications of severe liver failure after surgery also increases accordingly. Therefore, enhancing the liver’s regenerative capacity has always been a hot topic in clinical research. Portal vein blood supply is of great significance for maintaining the normal function of the liver and promoting the repair and proliferation of damaged liver tissue. After selectively altering the blood flow distribution in the portal vein, atrophy or proliferation will occur in different liver lobes. The discovery of the important physiological phenomenon of liver regeneration induced by deportalized blood flow of portal vein has made it possible to promote the volume growth and functional enhancement of the residual liver lobes before hepatectomy, and various technical schemes have been applied and developed in clinical practice. The interim research results show that the portal vein embolization technique is mature, has less trauma, but the induction speed is relatively slow. Portal vein combined with hepatic vein embolization has better induction efficacy and does not increase embolism-related complications, and has a wider range of applications. The induction ability of associating liver partition and portal vein ligation for staged hepatectomy is significant, but the surgical trauma is large, and there are higher requirements for perioperative management. There is a clear correlation between high surgical volume centers and technical improvements and a significant reduction in complications. Resection and partial liver transplantation with delayed total hepatectomy not only break through the bottlenecks of safety and ethical requirements for living donor liver transplantation in adults, but also innovate and enrich the second-stage extensive hepatectomy schemes. However, their technical standards and application scope still need more high-quality research evidence to support them.
Lung cancer is a complex disease with its own challenges, and is considered to be one of the most common causes of cancer death worldwide. The coronavirus disease 2019 (COVID-19) pandemic, caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), has exacerbated these challenges. The aim of this review is to explore the impact of the COVID-19 pandemic on the screening, diagnosis and treatment of lung cancer. We hope to provide some experience and help for the whole process management of lung cancer patients.
Objective To cultivate human retinal capillary endothelial cells (HRECs) and establish two-dimensional model of human retinal vessels in vitro. Methods In a fibronectincoated raising pound, HRECs were cultured by non-serum human-endothelial-cells substrate and two-dimensional model of human retinal vessels was established. Horseradish peroxidase was used to detect the permeability. Some of the vascular models were cultivated with 5 ng/ml vascular endothelial growth factor (VEGF), whose changes of permeability was compared with which of the models without cultivation with VEGF. The effect of VEGF on vascular permeability was observed. Results Meshy vascular structure came into being due to the confluent HRECs after 2 to 4 days. Comparatively complete two-dimensional vascular model after about 6 days. VEGF increased vascular permeability and promoted the formation of blood vessels. Conclusion HRECs can be cultivated successfully with human-endothelial-cells substrate; standard retinal two-dimensional vascular model in vitro can be established by using cellular raising pound and non-serum human-endothelial-cells substrate. (Chin J Ocul Fundus Dis, 2006, 22: 110-112)
Objective To determine the effect of closed tracheal suction system versus open tracheal suction system on the rate of ventilator-associated pneumonia in adults. Methods We searched The Cochrane Library (Issue 1, 2007), PubMed (1966 to 2006) and CBM (1980 to 2007), and also hand searched relevant journals. Randomized controlled trials involving closed tracheal suction system versus open tracheal suction system for ventilator-associated pneumonia in adults were included. Data were extracted and the quality of trials was critical assessed by two reviewers independently. The Cochrane Collaboration’s RevMan 4.2.8 software was used for data analyses. Result Five randomized controlled trials involving 739 patients were included. Results of meta-analyses showed that compared to open tracheal suction system, closed tracheal suction system did not increase the rate of ventilator-associated pneumonia (RR 0.83, 95%CI 0.50 to 1.37) or case fatality (RR 1.05, 95%CI 0.85 to 1.31). No significant differences were observed between open tracheal suction system and closed tracheal suction system in the total number of bacteria (RR 0.83, 95%CI 0.50 to 1.37), the number of SPP colony (RR 2.87, 95%CI 0.94 to 8.74) and the number of PSE colony (RR 1.46, 95%CI 0.76 to 2.77). There was no significant difference between the two groups in the duration of ventilation and length of hospital stay. Conclusion Open or closed tracheal suction systems have similar effects on the rate of ventilator-associated pneumonia, case fatality, the number of SPP and PSE colonies, duration of ventilation and length of hospital stay. However, due to the differences in interventions and statistical power among studies included in this systematic review, further studies are needed to determine the effect of closed or open tracheal suction systems on these outcomes.
A complex mechanism of reduced number of bile duct innervating ganglion cells, smooth muscle distribution, foregut duplications, and abnormal pancreaticobiliary duct junction, which occurs during embryonic development and after birth in a genetic context, can lead to pathological congenital biliary dilatation. As a precancerous lesion of the biliary system, irrational treatment of congenital biliary dilatation will further increase the risk of malignancy in patients. By understanding the causes, pathological features, and limitations of early detection techniques of malignant tumor secondary to congenital biliary dilatation is helpful to clarify the key points in the management of congenital biliary dilatation, reduce the incidence of postoperative adverse treatment events and avoid the medical risk of secondary malignancy.
【摘要】 目的 了解成都市综合医院门诊患者抑郁障碍和焦虑障碍的患病率及门诊医生的识别率。 方法 2007年4-5月应用医院焦虑抑郁量表（Hospital Anxiety and Depression Scale，HADS）、患者健康问卷（Patient Health Questionnaire 15-Item，PHQ-15）对在四川大学华西医院和华西第二医院神经内科、消化内科、妇科和心血管内科门诊就诊的685例患者进行筛查。HADS≥8分者进入精神科访谈，由精神科医生使用国际神经精神科简式访谈问卷进行诊断。 结果 综合医院门诊患者抑郁障碍校正后的现患率和终身患病率分别为19.26%和22.32%，焦虑障碍校正后的现患率和终身患病率分别为9.16%和9.63%。各科患病率不同，科室间患病率的差异有统计学意义。门诊医生的识别率为10.57%。 结论 成都市综合医院门诊患者抑郁障碍和焦虑障碍的患病率较高，识别率有待提高。【Abstract】 Objective To investigate the prevalence of depressive disorders and (or) anxiety disorders and physicians’ detection rate of these disorders in general hospitals in Chengdu. Methods From April to May, 2007, a hospital-based cross-sectional survey was conducted in neurology, gastrointestinal, gynecology and vasculocardiology departments in West China Hospital and West China Second Hospital. Outpatients were screened by using Hospital Anxiety and Depression Scale (HADS) and Patient Health Questionnaire 15-Item (PHQ-15). Psychiatrists interviewed subjects whose score of HADS were 8 and above and made diagnoses by using Mini International Neuropsychiatric Interview (MINI) according to the criteria of Diagnostic and Statistical Manual of Mental Health Disorders 4th Edition (DSM-IV). Results The adjusted current and lifetime prevalence of depressive disorders were 19.26% and 22.32%, respectively, and those of anxiety disorders were 9.16% and 9.63%, respectively. The prevalence of depressive disorders and/or anxiety disorders among four departments had statistically significant difference. The detection rate of these disorders by outpatient physicians was 10.57%. Conclusion Prevalence of depressive disorders and anxiety disorders among outpatients in West China Hospital and West China Women and Children Hospital is high, and the rate of physicians’ detection needs to be improved.