By integrating the concept of narrative medicine and relevant models and tools into the Doctor-patient Communication course， this paper expounds the connotation of narrative medicine under the context of “new medicine” and “big health” and the practical significance of the shift to narrative in Doctor-patient Communication course in three aspects： academic frontier， social needs and practical needs. This paper analyzes the four dimensions of innovation that narrative medicine， as the frontier of the discipline， historical accumulation， educational philosophy and professional skills， provides for the Doctor-patient Communication course， and explores the effective path to realize the narrative transformation of the course. It is expected to achieve the purpose of forging students’ humanistic medical skills and literacy through teaching innovation， realizing the coordination of medical education and competency orientation， adapting to the psychological and social increase， the change of people and health， and promoting the reform of the supply side of medical talents.

Objective To observe the value of ultrasonic parameters for predicting whether patients with cesarean scar pregnancy(CSP)would benefit from ultrasound-guided suction curettage alone.Methods Totally 140 CSP patients diagnosed by transvaginal ultrasound and initially treated with ultrasound-guided suction curettage alone were prospectively recruited and categorized into benefited group(n=103)and non-benefited group(n=37)according to bleeding during suction curettage and prognoses.The ultrasonic manifestations of CSP were observed,and the thickness of chorionic villi at the scar,as well as of residual myometrium of the anterior wall in the lower segment of the uterus,also the maximum diameter of the gestational sac were measured and compared between groups,and the parameters with quantitative data being statistically different between groups were converted into categorical predictor through analyzing of the receiver operating characteristic(ROC)curves and the optimal cut-off values.The independent predictors were selected among ultrasonic features and categorical predictor variables being statistically different between groups using multivariate logistic regression,and a combined predicting model was then constructed,and the predicting efficacy of the combined model and each categorical predictor alone was assessed according to the area under curve(AUC)and then were compared.Results Compared with non-benefited group,the gestational weeks in benefited group were smaller(P＜0.05),and the percentages of rich blood supply and the presence of embryos and fetal heartbeats were lower,with thinner chorionic villi at the scar,thicker residual myometrium and smaller maximal diameter of the gestational sac in benefited group(all P＜0.05).ROC curves analyses yielded the best cut-off value for dichotomy of chorionic villi thickness at the scar was 4.7 mm,of residual myometrium thickness was 1.8 mm and of the maximum diameter of the gestational sac was 29 mm,respectively,and then categorical predictor variable were obtained.Multivariate logistic regression showed that the transformed categorical predictors,i.e.the thickness degree of the chorionic villi at the scar,the thickness degree of the residual muscle layer and the size degree of the gestational sac,were all independent predictors of whether CSP patients would benefit from ultrasound-guided suction curettage alone(all P＜0.05).The AUC of the combined predicting model was 0.918,higher than that of each transformed categorical predictor alone(all P＜0.05).Conclusion The thickness of the chorionic villi at the scar ≤4.7 mm,the thickness of the residual muscle layer＞1.8 mm and the maximum diameter of the gestational sac≤29 mm were all independent predictors of CSP patients would benefit from ultrasound-guided suction curettage alone,and the predicting efficacy of the combined model was higher than that of each alone.

Randomized controlled trials (RCT) have long been considered the gold standard for assessing clinical efficacy. However, RCT are inappropriate for some diseases due to related ethical issues and costs, such as rare diseases that are seriously life-threatening but without adequate treatment. Using real world data (RWD) as external control for RCT could make recruitment less complicated and reduce time and cost. This paper introduces common application scenarios, data sources, study design, basic principles, and statistical methods of RWD as an external control based on the latest guidelines related to RWD and combined with our team's previous research experience. This study could provide references for scholars and sponsors who want to conduct RWD research.

Objective To investigate the value of different immune and inflammatory indices in predicting the survival outcome of patients with intrahepatic cholangiocarcinoma (ICC) after curative-intent resection. Methods A retrospective analysis was performed for the case data of 122 patients with ICC who underwent curative-intent resection in Affiliated Hospital of Weifang Medical University and Tianjin Medical University Cancer Institute and Hospital from January 2012 to December 2017 to analyze the correlation of neutrophil-lymphocyte ratio (NLR), lymphocyte-monocyte ratio (LMR), systemic immune-inflammation index (SII), prognostic inflammation index (PII), inflammation score (IS), and systemic inflammation score (SIS) with the disease-free survival (DFS) and overall survival of ICC patients after surgery, and the value of the above indices in predicting prognosis was evaluated. The chi-square test or the Fisher's exact test was used for comparison of categorical data between groups. The Kaplan-Meier method was used to plot survival curves, and the Log-rank test was used for comparison between groups; the Cox regression model was used for univariate and multivariate analyses, and hazard ratio ( HR ) and 95% confidence interval [ CI ] were calculated. Results The univariate survival analysis showed that NLR ( HR =2.212, P =0.004), LMR ( HR =0.403, P =0.012), PII ( HR =3.013, P < 0.001), prognostic nutritional index (PNI) ( HR =0.530, P =0.019), IS ( HR =1.809, P =0.001), SII ( HR =2.107, P =0.002), and SIS ( HR =2.225, P < 0.001) were predictive factors for postoperative DFS of patients with ICC, and NLR ( HR =2.416, P =0.009), LMR ( HR =0.297, P =0.008), PII ( HR =3.288, P < 0.001), PNI ( HR =0.292, P =0.003), IS ( HR =2.048, P =0.002), SII ( HR =1.839, P =0.049), and SIS ( HR =2.335, P < 0.001) were predictive factors for postoperative OS of patients with ICC. The multivariate survival analysis showed that high levels of PII ( HR =2.146, P =0.035) and SIS ( HR =2.511, P < 0.001) were independent influencing factors for postoperative DFS of ICC patients, and high levels of PII ( HR =2.981, P =0.009), PNI ( HR =0.261, P =0.002), and SIS ( HR =2.294, P =0.010) were independent influencing factors for postoperative OS. The patients with a high level of PII tended to have advanced tumor T stage ( χ 2 =8.777, P =0.003) and M stage ( P =0.029), and the patients with high-grade SIS tended to have advanced N stage ( χ 2 =9.985, P =0.030) and M stage ( χ 2 =8.574, P =0.012). Conclusion Among the various inflammation indices, PII and SIS are recommended for preoperative stratification and prediction of the outcome of ICC patients after curative-intent resection.

Objective:To compare and analyze the predictive value of different inflammatory factors and tumor markers in intrahepatic cholangiocarcinoma and to develop a new and effective preoperative prognostic scoring system.Methods:102 and 72 cases with intrahepatic cholangiocarcinoma who underwent radical surgery in Tianjin Medical University Cancer Institute and Hospital and the Affiliated Hospital of Weifang Medical University were selected as the experimental group and the validation group, respectively. Clinicopathological and follow-up data were collected. Cox proportional-hazards model was used to analyze the predictive value of different prognostic markers. The relationship between prognostic markers and clinicopathological data was analyzed by rank sum test, χ2 or Fisher's exact test. Results:Among the direct inflammatory factors, tumor markers and combined inflammatory factors, prognostic inflammatory index (PII), carbohydrate antigen (CA) 19-9 and systemic inflammation score (SIS) were the most significant predictive factors for postoperative survival outcomes in patients with intrahepatic cholangiocarcinoma. The prognostic inflammatory and tumor score (PITS) was proposed as a new prognostic scoring system for intrahepatic cholangiocarcinoma. PII and CA19-9 were included into the scoring criteria for prognostic stratification of patients. PITS was an independent predictor of tumor-free survival and overall survival in patients with intrahepatic cholangiocarcinoma. Patients with high-grade PITS had later tumor grade and higher frequency of vascular invasion.Conclusion:PITS is highly effective prognostic scoring system for patients with intrahepatic cholangiocarcinoma. In addition, PITS is recommended for preoperative prognostic stratification in patients with intrahepatic cholangiocarcinoma.

TORCH, which is considered as a series of pathogens, including the Toxoplasma gondii, Rubella virus, Cytomegalovirus or Herpes simplex virus, often infects the pregnant women to induce the the fetus or newborn infection by transplacental infection or exposure to contaminated genital tract secretions at delivery. Increasing evidence have been confirmed that the infection of TORCH may cause the miscarriage, premature birth, malformed fetus, stillbirth, intrauterine growth retardation, neonatal multiple organ dysfunction and other adverse pregnancy outcomes. For most TORCH-infections cases may lacking the effective treatments during pregnancy, and it is important to achieve the effacing monitoring of TORCH infections before and during pregnancy. The laboratory testing of TORCH has the great significance. However, the consensus opinions still need to improve the the standardization of TORCH testing process and the correct interpretation. Based on the characteristics of the TORCH detection method, this article gives a consensus opinion on the standardized detection and clinical application of TORCH from the laboratory perspective according to the characteristics and types of infection of different pathogens.

Objective: To analyze the genotypes, amino acid vatiations and molecular epidemiological characteristics of respiratory syncytial virus (RSV) infection in pediatric patients in Gansu province for the future research. Methods: A total of 4 556 respiratory tract specimens were colleted from pediatric patients under 10 years of age in five cities in Gansu from 2012 to 2017. These specimens were tested for RSV and its subtypes.The coding region of the RSV G gene was amplified using reverse transcription-polymerase chain reaction (RT-PCR) and sequenced for RSV positive specimens. Sequences were edited using DNA Star software. Sequence alignment and phylogenetic trees were built by MEGA 6.0 software. Results: Out of 4 556 specimens, 1 135 (24.91%) were positive for RSV, totally 216 G protein sequences were obtained. RSV A isolates were clustered into three genotypes: NA1、NA3 and ON1. The nucleotides and amino-acid homology was 84.9%-100% and 77.3%-100%, respectively. The nucleotides and amino-acid homology between this study and prototype long strain was 81.2%-83.3% and 74.1%-88.0%. RSV B isolates were clustered into only BA9 one genotypes. The nucleotides and amino-acid homology was 97.7%-100% and 95.8%-100%, respectively. The nucleotides and amino-acid homology between this study and prototype CH18537 strain was 84.9%-85.7% and 77.9%-80.1%. Conclusions The genetic characteristics and the amino-acid changes were analyzed systematically using data of RSV G gene collected from 2012 to 2017 in Gansu province in this study. These data were used for analyses of the etiology, control and prevention of RSV infection.

Objective To explore the application value of single-port inflatable mediastinoscopy combined with laparoscopy in the radical resection of esophageal cancer.Methods The retrospective descriptive study was conducted.The clinicopathological data of 27 patients who underwent single-port inflatable mediastinoscopic and laparoscopic radical resection of esophageal cancer in the General Hospital of Ningxia Medical University between September 2016 and April 2018 were collected.The surgical operators were divided into neck operation group and abdomen operation group.A "Y" tube was used to inflate the abdomen and mediastinum simultaneously with CO2,and the gas pressure was 12-16 mmHg (1 mmHg =0.133 kPa).Bilateral exchange free and join forces with the esophagus and xiphoid process operating small incision,the severed esophagus cardia;residual stomach was made into a 3-5 cm tubular stomach and was sutured at the top point;at the same time,esophagus was brought up from the neck,with a pouch suture between upper esophageal and stapling head;the tubular stomach through mediastinum-esophagus bed was pulled to the left neck and then gastroesophageal anastomosis manually or instrument was performed.Observation indicators:(1) surgical and postoperative recovery;(2) follow-up and survival situations.Follow-up using outpatient examination and telephone interview was performed to detect postoperative survival up to May 2018.The measurement data with normal distribution were represented as x-±s.The measurement data with skewed distribution were described as M (range).Results (1) Surgical and postoperative recovery:all the 27 patients underwent successful single-port inflatable mediastinoscopic and laparoscopic radical resection of esophageal cancer,with complete tumor resection and without conversion to open surgery.There was no arrhythmia or myocardial ischemia through intraoperative electrocardiography.Among 27 patients,5 had intraoperative rupture of the pleura and 3 stopped intermittently inflation with CO2 due to obvious hemodynamic changes.The operation time and volume of intraoperative blood loss were (121±21)minutes and (100± 30)mL.Twenty-seven patients had no thoracic incision,obviously decreased postoperative pain and out-of-bed activity at day 1 postoperatively.The volume of postoperative mediastinal drainage was (40± 10)mL.The mediastinal drainage-tube was removed at 1 week after regular food intake.Of 27 patients,5 with pleural effusion were cured by puncture drainage;2 were complicated with anastomotic leakage,1 of them with a small amount of subcutaneous gas under neck incision at 12 days postoperatively was cured spontaneously through oral food intake,without special treatment,and the other had a small amount of subcutaneous gas under neck incision after solid food intake at 1 month postoperatively and then was cured after 1-week fluid food intake;1 with anastomotic stenosis was improved after dilation treatment.The squamous cell carcinoma was confirmed by postoperative pathological examination,without cancer cell infiltration in the upper and lower margins.The numbers of mediastinal lymph node dissected,abdominal lymph nodes dissected and positive lymph node,postoperative pathological staging and duration of hospital stay were respectively 9.5±2.2,8.2±2.5,1 (range,0-12),T1-3N0-1M0 and 13 days (range,11-21 days).(2) Follow-up and survival situations:27 patients were followed up for 1-20 months,with a median time of 10 months.During the follow-up,there was no recurrence or metastasis and death.Conclusion The single-port inflatable mediastinoscopy combined with laparoscopy in the radical resection of esophageal cancer is safe and effective,and it is especially suitable for patients with partial respiratory failure and closed thoracic cavity.

Objective To compare volar plating and nonoperative treatment for senile comminuted fractures of the distal radius. Methods From October 2012 to June 2015, 46 senile comminuted fractures of the distal radius ( AO types B and C ) were treated surgically or conservatively. Twenty old patients were managed by open reduction and fixation with a volar locked plate. They were 7 men and 13 women, with an average age of 67. 9 ± 10. 7 years, including 7 cases of AO type 23-B and 13 cases of AO type 23-C. Twenty-six patients were managed with closed reduction and plaster cast. They were 8 men and 18 women, with an average age of 66. 2 ± 11. 5 years, including 10 cases of AO type 23-B and 16 cases of AO type 23-C. The 2 groups were compared in terms of follow-up time, union time and wrist functional scores and complica-tions. Results There was no significant difference between the 2 groups in follow-up time ( P > 0. 05 ) . Fractures in the 2 groups all united about 11 weeks after surgery. According to Dienst scoring for reduction, the volar plating group had 13 excellent cases, 4 good ones, 2 fair ones and one poor case, with an excellent to good rate of 85. 0％ while the nonoperative group had 5 excellent cases, 10 good ones, 5 fair ones and 6 poor ones, with an excellent to good rate of 57. 7％. A significant difference was shown between the 2 groups ( P <0. 05 ) . At final follow-ups, the volar plating group had significantly lower Gartland & Werley wrist functional score ( 2. 16 ± 1. 82 ) and complication rate ( 30. 0％, 6/20 ) than the nonoperative group [ 6. 62 ± 3. 78 and 53. 8％( 14/26 ) , respectively ] ( P <0. 05 ) . Conclusion In treatment of senile comminuted fractures of the distal radius, volar locked plating may lead to better functional recovery and fewer complications than nonoper-ative management. However, one should take full account of the physical condition and preference of the patient when surgery is chosen.

Objective To investigate the effect of high concentration hydrogen gas on neurons in the rat hippocampus CA1 region during global cerebral ischemic/reperfusion injury (GCIR) Methods Four-vessel occlusion was used to establish rat model with GCIR injury. One hundred and five healthy male Sprague-Dawley rats were randomly divided into sham operation group(SH group, n = 15), model group(4-VO group, n = 45) and treatment group(4-VO+H2 group,n = 45). After 72 h and 9 d reperfusion, hippocampal CA1 region pyramidal neurons in every group were detected with Nissle staining , immunohistochemical neuron-specific nuclear protein (NeuN), specific protein antibody microglial cells (Iba1) staining and the relationship of position between neurons and microglia was observed through fluorescence double staining. We used Morris water maze to test the space orientation ability and the learning and memory ability in rats after 9 d reperfusion. Results Compared with those of 4-VO group,the neurons of hippocampus CA1 region were closer to normal in 72 h and 9 d in 4-VO+H2 group and neuron form and the number of neuron survival were increased significantly (P < 0.05);immunohistochemical staining showed that the number of neuron survival in 4-VO+H 2 group was obviously higher than that in 4-VO group (P < 0.05) and the number of microglia in 4-VO group was obviously higher than that in 4-VO+H2 group (P < 0.05). Water maze experiment showed that the swimming time in quadrant Ⅳ in 4-VO+H2 group was longer than that in 4-VO group (P < 0.05). Conclusion Inhalation of high concentration hydrogen gas has prominent protective effect on neurons of rat hippocampal CA1 region during reperfusion. The mechanism may be related with inhibiting the microglia excitation and activation during GCIR.