Portal vein blood flow is very important for the normal function of transplanted liver. The author reviewed the management methods of different portal vein thrombosis classification in the liver transplantation (LT). The prognosis of LT in the patients with Yerdel 1–3 thrombosis is similar to that the patients without thrombosis. The portal vein reconstruction of the patients with Yerdel 4 thrombosis can be realized by varicose vein to portal anastomosis, renoportal anastomosis or cavoportal hemitransposition. When anastomosis is made at the proximal side of a spontaneous shunt between the portal and cava system, the blood shunted from portal system can be reintroduced into the donor liver, which is crucial for the management of Yerdel 4 thrombosis. The establishments of artificial shunt by distal splenic vein, mesenteric vein or “multiple to one” anastomosis are effective attempts to drain the blood from portal system to the donor liver. For more severe diffuse thrombosis of portal vein system, multivisceral transplantation, including liver and small intestine, should be considered. The cases of LT in the patients with complex portal vein thrombosis are increasing, however the prognosis remains to be determined after accumulation of the cases.
China is a country with a high incidence of esophageal cancer. Most patients are already in the locally advanced stage when first diagnosed. Preoperative neoadjuvant therapy followed by surgery has become the standard treatment mode for them. Closely related to prognosis, the evaluation of tumor response is essential. Response evaluation criteria in solid tumors is the gold standard to evaluate tumor response, but the lesions must meet the measurement standards. Tumor regression grading (TRG) systems are designed to classify regressive changes after neoadjuvant treatment based on histopathological results to reveal prognostic information. Concentrating on pathologic assessment of esophageal cancer following neoadjuvant therapy, this article reviews histopathological changes, commonly used TRG systems and current debate.
To solve the defect which is recognizing but not rating the stress, or rating but not considering the influence of the previous stress state to the current state of the existing affective stress evaluation method, this paper proposes an approach of affective stress rating model on electrocardiogram (ECG). An affective stress rating algorithm based on hidden Markov model (HMM) was established with the theory of affective computing. The individual's affective stress was rated using this affective rating model combining the investigation questionnaire. Features like complexity and approximate entropy of ECG were used in the model, and a matching process suggested that it improved the accuracy of affective stress rating. The result of the experiment illustrated that the model considering the environmental factors and the influence of previous stress state to the current state was an effective method in affective stress rating, and the accuracy of rating was improved by this affective stress rating method.
ObjectiveTo detect the expression of Prox1 (prospero-related homeobox 1) gene in primary hepatocellular carcinoma (HCC), and to analyze the correlation of Prox1 gene expression with pathological grade and clinical stage of HCC. MethodsThe expressions of Prox1 gene in carcinoma tissues and adjacent cancerous tissues in HCC as well as normal liver tissues were detected by semi-quantitative RT-PCR, then the correlation of Prox1 gene expression with HCC pathological grade and clinical stage were analyzed. ResultsThe expression of Prox1 gene in carcinoma tissues (0.243±0.102) and adjacent cancerous liver tissues (0.537±0.235) was significantly lower than that in normal liver tissue (0.812±0.372), respectively （ Plt;0.01 or Plt;0.05）. Furthermore, the expression of Prox1 gene in carcinoma tissues was significantly lower than that adjacent cancerous liver tissues (Plt;0.05). The expressions of Prox1 gene in different pathological grade (F=97.950, Plt;0.001) and clinical stage were significantly different (F=228.300, Plt;0.001), and when compared with each other, the differences of pathological grade and clinical stage were also significant (Plt;0.001 or Plt;0.01). The expressions of Prox1 gene in HCC carcinoma tissue were negatively correlated with pathological grade (r=-0.930, Plt;0.01) and clinical stage (r=-0.980, Plt;0.01) of HCC. ConclusionsExpression of Prox1 gene may be related to the initiation and development of HCC, however, that whether Prox1 gene functions as tumor suppressor in HCC needs further investigation.
ObjectiveTo evaluate the differences of visual evoked potentials (amplitudes and latency) between cerebral palsy (CP) children and normal children. MethodsThis study involved fourteen children aged from 4 to 7 years with CP (monoplegia) between 2009 and 2013. Another 14 normal children aged from 5 to 9 years treated in the Department of Ophthalmology in West China Hospital during the same period were regarded as the control group. Both eyes of all the participants were examined by multifocal visual evoked potential (mfVEP). The mfVEP examination results were recorded, and amplitude and latency were analyzed. First, we analyzed the differences of amplitudes and latency time between monoplegia children and children in the control group. Second, gross motor function classification system (GMFCS) was used to classify the fourteen monoplegia children among whom there were five GMFCS Ⅰ patients and nine GMFCS Ⅱ patients. The differences of mfVEP were analyzed between the two GMFCS groups. ResultsThe amplitude and latency of mfVEP in children with CP showed gradual changes similar to those in the normal children. The amplitudes were decreasing and the latencies were delaying from the first eccentricity to the sixth eccentricity. The amplitudes in children with CP were lower than those in the control group in the first to the third eccentricities for both eyes (P＜0.05), and latency of left eye was delayed in the first eccentricity in children with CP (P=0.045). No difference was found between the two GMFCS groups (P>0.05) except the amplitude of the first eccentricity (P=0.043). ConclusionsThe results of mfVEP show significant differences of amplitude and latency between CP and normal children, suggesting the existence of visual pathway impairments in cerebral palsy children. The results of mfVEP can provide an objective basis of visual impairments for cerebral palsy children.
ObjectiveTo analyze the safety and effectiveness of ultrasound-guided endovascular treatment for femoropopliteal arteriosclerosis obliteran (ASO). MethodsThe clinical data of patients with femoropopliteal ASO were collected and analyzed. The patients were treated by ultrasound-guided endovascular intervention in the Xijing Hospital of Air Force Military Medical University, from March 2015 to June 2021. The endovascular intervention methods included the arterial balloon dilation (ABD) alone, stent implantation (SI), Rotarex mechanical thrombus removal (Abbreviationas: Rotarex), and thrombolytic catheter implantation (CDT), etc. ResultsAll 112 patients (121 affected extremities) who met the research criteria were collected. Among them, there were 13, 68, and 40 affected extremities by the Rutherford classification of 2, 3, and 4, respectively, while 41, 39, and 41 affected extremities by the Trans-Atlantic Inter-SocietyConsensus Ⅱ classification of A, B, and C, respectively. Among 121 affected extremities, 61 underwent the ABD alone, 27 underwent ABD plus Rotarex, 12 underwent ABD plus SI, 6 underwent ABD plus SI plus Rotarex, 3 underwent ABD plus SI plus CDT, 7 underwent ABD plus CDT plus Rotarex, and 5 underwent ABD plus CDT. The ultrasound-guided endovascular treatments were completed successfully in 118 affected extremities (the success rate was 97.5%), and 3 affected extremities were not completely completed by ultrasound guidance. After operation, 5 affected extremities had pseudoaneurysm and 7 affected extremities had hematoma at the puncture site, which were cured after conservative management. The ankle-brachial index (ABI) of the affected extremities immediately after surgery was statistically higher than that before surgery [0.89±0.13 vs. 0.53±0.09, mean difference (95% confidence interval)=0.36 (0.34, 0.38), paired t-test (t=–25.17), P<0.001]. After a follow-up of 12 months, one patient had a metatarsal amputation and one patient died (acute myocardial infarction). The restenosis rate and reintervention rate of the target lesions were 25.0% (30/120) and 15.0% (18/120) at 12 months postoperatively, and the late loss of diameter was (0.88±0.25) mm. The ABI was still higher than before surgery [0.78±0.13 vs. 0.53±0.09, mean difference (95% confidence interval)=0.25 (0.22, 0.27), paired t-test, t=–17.61, P<0.001]. ConclusionFrom analysis results of this data, it can be seen that, ultrasound-guided endovascular intervention is a safe and effective treatment for selective femoropopliteal ASO.
This article discusses the new needs and development direction of medical testing technology under the hierarchical diagnosis and treatment system in China, outlines the principles and advantages of new medical testing technology based on smartphones, and briefly describes the development status and research results of smartphone testing technology in specific medical testing directions such as immune analysis, nucleic acid analysis, biochemical analysis and cell morphology analysis. In addition, the article also discusses the current problems of smartphone medical testing technology, such as poor compatibility with different models of smartphones, few detection indicators, low automation, lack of clinical verification. Finally, a prospect is made for the possible future development direction of smartphone medical examination technology, aiming to provide a certain reference for the promotion and more reasonable application of smartphone medical examination technology.
Day surgery is an important diagnosis and treatment modality to promote hierarchical diagnosis and treatment and form a “surgery in hospital, recovery in community” diagnosis and treatment mode. At the same time, the promotion and implementation of hierarchical diagnosis and treatment provides institutional support and promotion for the perfection of day surgery management. Based on the experience from the Day Surgery Centre of General Hospital of Eastern Theater Command, this paper investigates the role of “gate-keepers” and recovery guidance in community and secondary hospitals in the perfection of day surgery in tertiary hospitals. Taking orthopedic day surgery as an example, which accounts for the largest proportion in day surgery in General Hospital of Eastern Theater Command, this paper aims to explore a feasible model of hierarchical diagnosis and treatment of day surgery, which specifies the responsibilities and works of hospitals at all levels.
目的 探讨宫颈癌骨转移相关因素。 方法 回顾分析2008年6月－2011年8月收治的352例宫颈癌患者的临床资料，其中鳞癌326例，腺癌26例；临床分期Ⅰ期60例、Ⅱ期184例、Ⅲ期90例、Ⅳ期18例。比较不同期别、不同病理类型、不同组织分级患者的骨转移情况。 结果 352例宫颈癌中有18例发现骨转移，转移率为5.1%；转移时间为3～48个月，2例于骨转移后1年内死亡。鳞癌326例，骨转移率为5.2%；腺癌26例，骨转移率为3.8%。Ⅰ、Ⅱ、Ⅲ和Ⅳ期患者的骨转移率分别为0.0%、3.8%、5.6%和33.3%，晚期与早期相比有统计学意义（P＜0.05）；高、中和低分化患者骨转移率分别为3.1%、3.1%和6.3%，高分化与中分化相比，差异无统计学意义（P＞0.05），低分化与高中分化相比差异有统计学意义(P＜0.05)。 结论 宫颈癌骨转移与宫颈癌临床分期、病理类型、细胞分级密切相关。在宫颈癌的治疗过程中，做到早发现、早治疗，可提高患者的治疗效果，延长生存时间。