After Wenchuan earthquake on May 12, West China Medical School/ West China Hospital of Sichuan University organized a youth volunteer team for earthquake rescue and relief. A volunteer network was formed and relevant service regulations were formulated immediately. Volunteers have played an important role in post-earthquake evacuation of patients, emergency reception, ward care, on-call service, a service to help people find family members, telecommunications and some other major tasks.
【摘要】 目的 評價青年人頸動脈彩色多普勒超聲檢查的臨床意義，并探討青年人腦梗死與頸動脈粥樣硬化的關系。 方法 2008年2月-2011年3月，對256例青年腦梗死患者進行頸動脈彩色多普勒超聲檢測，選擇性別和年齡匹配的健康青年143例作對照組，比較兩組人群頸動脈彩色多普勒超聲特點的差異。 結果 腦梗死組頸動脈粥樣硬化斑以中等、強回聲斑塊為主，斑塊積分、血管壁內-中膜厚度（ITM值）及斑塊檢出率（34.77%，89例）均明顯高于對照組（Plt;0.01）；腦梗死組頸動脈硬化狹窄率及血栓發生率明顯高于對照組（Plt;0.05，lt;0.01）。 結論 青年腦梗死患者頸動脈粥樣硬化及血栓形成發生率均高，提示青年腦梗死患者的發病主要原因與動脈粥樣硬化有關。IMT值的增加、斑塊的檢出率及形態學特征等是頸動脈病變與腦梗死發生的有意義的檢測指標，在青年人腦梗死的防治中是有參考意義較大的超聲學指標。【Abstract】 Objective To assess the clinical significance of color Doppler ultrasonography in examining carotid arteries of young patients, and explore the relationship between cerebral infarction and carotid arteriosclerosis in young patients. Methods A total of 256 patients with cerebral infarction and 143 people without cerebral infarction diagnosed between February 2008 and March 2011 were assessed by color doppler ultrasonography. The ultrasonic characteristics of the two groups were compared and analyzed. Results Plaques incidence in cerebral infarction group was 81.43% which was higher than that in the control group. The most common sites of plaque formation were common carotid artery (CCA) bifurcate and the initial segment of internal carotid artery (ICA) in young people with cerebral infarction. In the cerebral infarction group, the rate of middle-echoic plaques was higher than that in the control group (Plt;0.05). The rate of low-grade carotid stenosis was higher in the cerebral infarction group than that in the control group (Plt;0.05). Conclusions Cerebral infarction occurrence in young people is closely correlated to carotid artery atherosclerosis. Ultrasonography can provide objective evidences for preventing and treating cerebral infarction.
Objective To explore the characteristics of diagnosis and treatment for the rectal cancer in the young patients （≤40 years）．Methods The domestic and abroad literatures about the research on the progress of rectal cancer in the young patients were reviewed, the clinical data of patients with rectal cancer were compared between the young patients and the other age patients, the characteristics of diagnosis and treatment for the rectal cancer in the young patients were summarized．Results The onsets of the young patients with rectal cancer were related to the diet，lifestyle, and genetic factors．Compared with the older patients, more later stage, higher percentage of poor differentiation, earlier lymph node metastasis were found in the young patients with rectal cancer．Rectal cancer of the young patients was often misdiagnosed and with a poor prognosis．Currently，surgery assisted with neoadjuvant therapy was generally acknowledged as a better method．Conclusions It has specificity in epidemiology, pathology, treatment, prognosis, and so on for rectal cancer in the young patients, but surgery needs further research．
ObjectiveTo investigate the predictive value of volatile organic compounds (VOCs) on pulmonary nodules in people aged less than 50 years.MethodsThe 147 patients with pulmonary nodules and aged less than 50 years who were treated in the Department of Thoracic Surgery of Sichuan Cancer Hospital from August 1, 2019 to January 15, 2020 were divided into a lung cancer group and a lung benign disease group. The lung cancer group included 36 males and 68 females, with the age of 27-49 (43.54±5.73) years. The benign lung disease group included 23 males and 20 females, with the age of 22-49 (42.49±6.83) years. Clinical data and exhaled breath samples were collected prospectively from the two groups. Exhaled breath VOCs were analyzed by gas chromatography mass spectrometry. Binary logistic regression analysis was used to select variables and establish a prediction model. The sensitivity, specificity, and area under the receiver operating characteristic (ROC) curve of the prediction model were calculated.ResultsThere were statistically significant differences in sex (P=0.034), smoking history (P=0.047), cyclopentane (P=0.002), 3-methyl pentane (P=0.043) and ethylbenzene (P=0.009) between the two groups. The sensitivity, specificity and area under the ROC curve of the prediction model with gender, cyclopentane, 3-methyl pentane, ethylbenzene and N,N-dimethylformamide as variables were 80.8%, 60.5% and 0.781, respectively.ConclusionThe combination of VOCs and clinical characteristics has a certain predictive value for the benign and malignant pulmonary nodules in people aged less than 50 years.
ObjectiveTo observe the abnormal clinical manifestations of retinal blood vessels and the characteristic image characteristics of optical coherence tomography (OCT) in young myopia. MethodsA case observation study. From July to December 2020, 523 young patients with different myopia refractive powers who were treated in Department of Ophthalmology of The Second Hospital of Hebei Medical University were included in the study. Among them, 277 were males and 246 were females; the median age was 19.0 (5.0) years. All the affected eyes underwent best corrected visual acuity (BCVA), frequency domain OCT (SD-OCT) examination and axial length (AL) measurement. The BCVA examination was performed using the Snellen eye chart. The median myopia refractive power of the affected eye was 5.00 (3.25) D. Among them, low myopia, moderate myopia, and high myopia were 227, 405, and 414 eyes, respectively. The average AL of the affected eye was 25.6±2.8 mm. The frequency domain OCT instrument was used to scan the temporal side of the retina, the upper and lower nasal vascular arches and the macular fovea radially. The images of retinal vascular cysts, microfolds, and lamellar hole were acquired and stored. The prevalence, composition ratio, distribution rule and OCT imaging characteristics of retinal paravascular abnormalities were observed and analyzed. The distribution of paravascular abnormalities in the retina was compared by the χ2 test; the age, refractive power, and AL of different paravascular abnormalities were compared by the K-W rank sum test. ResultsOf the 1046 different diopters of myopic eyes, there were 227 eyes in mild myopia, 405 eyes in moderate myopia and 414 eyes in high myopia. Retinal paravascular abnormalities were detected by SD-OCT in 40 eyes (3.8%,40/1046). The prevalence of retinal paravascular abnormalities in moderate myopia was 0.7% (3/405) and high myopia was 8.9% (37/414). No retinal paravascular abnormalities were observed in mild myopia.Retinal paravascular cysts in 40 eyes (3.8%, 40/1046), retinal paravascular microfolds in 28 eyes (2.7%, 28/1046) and retinal paravascular lamellar holes in 13 eyes (1.2%, 13/1046). Of 40 eyes with retinal paravascular abnormalities, retinal paravascular cysts in all 40 eyes (100.0%, 40/40), retinal paravascular microfolds in 28 eyes (70.0%, 28/40) and retinal paravascular lamellar holes in 13 eyes (32.5%, 13/40). Twelve eyes with simple cyst cavity (30.0%, 12/40); 15 eyes were with cyst cavity with micro-wrinkles (37.5%, 15/40); 13 eyes were with cyst cavity, micro-wrinkles and lamellar holes (32.5%, 13/40). The temporal vascular arch retinal paravascular cysts (χ2=25.664), microfolds (χ2=14.973), and lamellar holes (χ2=13.499) were significantly more than those on the nasal side, and the difference was statistically significant (P＜0.001). ConclusionsThe total prevalence of retinal paravascular abnormalities in young myopia is 3.8%; it can occur in both moderate and high myopia. The paravascular cyst may be the earliest pathology of paravascular abnormalities in the retina. The three paravascular abnormalities are mostly distributed along the temporal arch of the retina.
