Objective To systematically review the efficacy and safety of nicergoline on chronic cerebrovascular insufficiency (CCVI).Methods Databases including the Cochrane Library,PubMed,CNKI,VIP and WanFang Date were electronically searched for relevant randomized controlled trails (RCTs) which studied the effectiveness and safety of Nicergoline on chronic cerebrovascular insufficiency.Two reviewers independently screened literature according to the inclusion and exclusion criteria,extracted data,and assessed the methodological quality.Metaanalysis was performed by using RevMan 5.2 software.Results Totally 9 studies involving 1 030 patients were included.The meta-analysis results showed that,compared with conventional treatment alone,the Nicergoline group was superior in improving the velocity of middle cerebral artery(MCA) in both systolic(MD=16.43,95％CI:10.39-22.46) and the late diastolic (MD=11.48,95％CI:5.34-17.63).Besides,Nicergoline significantly improved the pulse index (PI) of MCA (MD=-0.37,95％CI:-0.48--0.26).Likewise,it obviously improved the velocity in both systolic (MD=11.23,95％CI:6.10-16.35),the late diastolic (MD=8.80,95％CI:5.20-12.40) and the PI of vertebral artery (VA) (MD=-0.38,95％CI:-0.47--0.28).The remission rate of the nicergolinegroup was higher than that of the control group (OR=3.93,95％ CI:2.66-5.81).Drug-related adverse reactions were not reported in included studies.Conclusions Nicergoline shows a certain efficacy on CCVI without obvious adverse reactions.

Objective To investigate the lens and pituitary dose impacted by additional filtration and collection field in head and neck DSA examinations. Methods All images were acquired by a Philips ALLura Xper FD 20 DSA machine. The combination of the different collection fields (48 cm, 42 cm, 31 cm, 22 cm) and additional filtrations (0.9 mmCu+1.0 mmAl, 0.4 mmCu+1.0 mmAl, 0.1 mmCu+1.0 mmAl) were adjusted when the anthropomorphic phantom filled with dosimeter was scanned in anterioposterior and lateral positions with 2D?DSA and 3D?DSA. The dose area product (DAP), air kerma (AK) and the radiation dose values of bilateral lens and pituitary were measured and recorded. The 2D and 3D?DSA regional absorption dose on lens and pituitary were analyzed using t' test, the correlations between DAP and AK parameters and different regional absorption doses were evaluated by Pearson rank correlation coefficient. Results Absorption doses of left lens, right lens and pituitary with 2D?DSA (n=12) were as following:(2.77 ± 0.68), (6.23 ± 3.54), (8.65 ± 2.62) mGy, while the parameters with 3D?DSA (n=12) were (1.78 ± 0.82), (2.18±1.15), (3.32±0.64) mGy, respectively;the results revealed a significant difference (t'=3.20, 3.76 and 6.85, P<0.01). DAP [(8 739±5 731) mGy·cm2] had a relationship with absorption dose of pituitary, left lens and right lens [(5.988 ± 3.299),( 2.258 ± 0.872),( 4.207 ± 3.303) mGy, r values were 0.766, 0.684, 0.727; P<0.01]. AK values was (31 ± 23) mGy and it had a relationship with pituitary absorption dose (r value was 0.894, P<0.01). The lens dose was reduced when the additional filtration was increased and the collection field was decreased, the radiation dose of the pituitary was reduced when both the additional filtration and the collection field were increased. Conclusions In the head and neck DSA examinations, the radiation dose of the lens and the pituitary had different changes with the different additional filters and collecting fields. The organ dose with 3D?DSA was significantly less than that with 2D?DSA.

Objective To systematically evaluate the effectiveness and safety of different calcium channel blockers (CCBs) in preventing stroke in hypertensive patients.Methods PubMed,Cochrane Library,Embase,Wanfang,CNKI,CBM,and other databases were comprehensively retrieved,and the randomized controlled trials of different CCBs in the prevention of stroke in hypertensive patients were collected.The retrieval time was from the establishment of the databases to November 5,2018.The languages were limited to Chinese and English.The literature screening,study inclusion,information extraction,and quality evaluation were independently conducted by two professional reviewers.A network diagram was drawn using Stata 13.0,and a meta-analysis of the included studies was performed using the Bayes model of the GeMTC 1.4.3 software.Results A total of 12 studies with 58 468 patients were enrolled.Network metaanalysis showed that nitrendipine (odds ratio 0.63,95％ confidence interval 0.44-0.89) and nifedipine (odds ratio 0.68,95％ confidence interval 0.46-0.92) were statistically significant in reducing the incidence of stroke.Other CCBs were not statistically significant in reducing the incidence of stroke,but had clinical differences.For the effectiveness of applying different CCBs to reduce the incidence of stroke,lacidipine should be preferred,followed by amlodipine,nitrendipine,nifedipine,and felodipine.However,there were no statistically significant differences in the effectiveness of different CCBs in preventing stroke.Conclusion Different CCBs can effectively reduce the incidence of stroke.In terms of specific drug types,lacidipine should be considered first,followed by amlodipine,nitrendipine,nifedipine,and felodipine.

Objective To investigate the outcomes of patients with diabetic retinopathy (DR) in Shanghai communities and the influencing factors.Methods From October 2015 to April 2016,533 type 2 diabetic patients with DR were selected by target sampling and cluster random sampling method from six community health service centers in Shanghai.Patients were followed up for 1 year.The demographic information,physical examination,laboratory tests and eye fundus exam results were documented and the DR was graded.The factors associated with the regression of DR were analyzed.Results Total 478 patients,including 280 females (58.6％) and 198 males (41.4％),were followed up for 1 year.The mean age of patients was (64±7) years and the mean disease duration was (8.85±4.20) years.The original DR lesion was remitted in 35 patients with an improvement rate of 7.3％;while the original DR lesion was aggravated in 29 patients with a progression rate of 6.1％.Ordinal logistic regression analysis revealed that age (OR=0.197,95％CI:0.056-0.699),body mass index (BMI) (OR=0.383,95％CI:0.171-0.856),glycosylated hemoglobin (HbAlc) (OR=0.287,95％CI:0.102-0.803),triglycerides (TG) (OR=0.541,95％CI:0.295-0.991),urinary albumin to creatinine ratio (ACR)(OR=0.218,95％CI:0.066-0.720) were associated with DR in type 2 diabetic patients.Conclusion The regression of DR is closely related to age,BMI,glucose,serum lipids and renal function,so it is suggested that lowering BMI,controlling glucose and serum lipids and maintaining normal kidney function are necessary for preventing the progression and promoting the improvement of DR in diabetic patients.

Sleep deficiency is a common public health problem associated with many diseases, such as obesity and cardiovascular disease. In this study, we established a sleep deprivation (SD) mouse model using a ‘stick over water’ method and observed the effect of sleep deficiency on ocular surface health. We found that SD decreased aqueous tear secretion; increased corneal epithelial cell defects, corneal sensitivity, and apoptosis; and induced squamous metaplasia of the corneal epithelium. These pathological changes mimic the typical features of dry eye. However, there was no obvious corneal inflammation and conjunctival goblet cell change after SD for 10 days. Meanwhile, lacrimal gland hypertrophy along with abnormal lipid metabolites, secretory proteins and free amino-acid profiles became apparent as the SD duration increased. Furthermore, the ocular surface changes induced by SD for 10 days were largely reversed after 14 days of rest. We conclude that SD compromises lacrimal system function and induces dry eye. These findings will benefit the clinical diagnosis and treatment of sleep-disorder-related ocular surface diseases.

Objective:To explore the application value of two-dimensional speckle tracking imaging (2D-STI) in evaluating diaphragm function, and to compare the ability of 2D-STI and conventional diaphragm ultrasonography in diagnosing diaphragmatic dysfunction and evaluating disease severity in patients with acute exacerbation of chronic obstructive pulmonary disease (AECOPD).Methods:A total of 58 AECOPD patients admitted to the First Affiliated Hospital of Xi′an Jiaotong University from January to October 2021 were retrospectively enrolled as AECOPD group, and 34 healthy subjects were recruited as control group during the same period. Repeatability test of diaphragmatic 2D-STI was performed. According to modified Medical Research Council (mMRC) dyspnea scores system and COPD Assessment Test (CAT), mMRC 0-1 and CAT<10 was classified as group A, mMRC≥2 and CAT≥10 was classified as group B. The baseline characteristics, conventional diaphragm ultrasonography parameters(thickening fraction and excursion) and 2D-STI parameters (longitudinal and radial strains) were compared between the AECOPD group and the control group, and the Spearman correlation between parameters of AECOPD group and forced expiratory volume in one second (FEV1) was analyzed. The differences of these parameters between group A and B were also compared. The ROC curve of conventional diaphragm ultrasonography parameters and 2D-STI parameters was plotted to differentiate group A from group B, and the diagnostic efficacy was evaluated.Results:Great intra- and inter-observer reproducibility was found for all diaphragmatic 2D-STI parameters, with ICCs above 0.80 for all measurements. The control group and the AECOPD group did not differ in age, sex and body mass index( P>0.05), whereas there were significant differences in smoking history, lung function, bilateral thickening fraction, excursion, longitudinal and radial strains( P<0.05). Compared with control group, patients in group A had a significant increase in diaphragm thickness ( P<0.05), while there was no significant difference in that between group B and control group ( P>0.05). The bilateral longitudinal strains, radial strains and thickening fraction of diaphragm were linearly correlated with FEV1 (right side rs=0.828, 0.794, 0.843, respectively; all P<0.001; left side rs=0.757, 0.704, 0.752, respectively; all P<0.001 ), while the correlation between excursion and FEV1 was not significant(right side rs=0.247, left side rs=0.253; all P>0.05). There were significant differences in bilateral longitudinal strains, radial strains and thickening fraction between group A and group B(all P<0.05), whereas there was no significant difference in excursion between the two groups ( P>0.05). ROC analysis showed bilateral longitudinal and radial strains had higher accuracy in distinguishing group A from group B than thickening fraction and excursion(right side AUCs 0.90, 0.84, 0.78 and 0.62, respectively; left side AUCs 0.85, 0.83, 0.77 and 0.62, respectively). Conclusions:2D-STI is a real-time noninvasive technique for diaphragm function assessment, which has high clinical value. Compared with conventional ultrasonography, 2D-STI shows more accuracy and effectiveness in diagnosing diaphragmatic dysfunction and evaluating disease severity of patients with AECOPD.

Objective:To evaluate the effect of patent foramen ovale (PFO) on the perioperative complications and survival rate in pediatric patients undergoing living donor liver transplantation.Methods:The medical records from pediatric patients of either sex with biliary atresia, aged<18 yr, who underwent living donor liver transplantation from January 2020 to January 2022, were retrospectively collected. The pediatric patients were divided into PFO group and non-PFO group according to the results of echocardiography before operation. The postreperfusion syndrome, acute lung injury, acute kidney injury, postoperative delirium and 1-year survival rate were recorded.Results:There was no significant difference in the incidence of postreperfusion syndrome, acute lung injury, acute kidney injury, postoperative delirium and one-year survival rate between PFO group and non-PFO group ( P>0.05). Conclusions:PFO has no obvious effect on the incidece of intraoperative and early postoperative complications and 1-year survival rate in pediatric patients undergoing living donor liver transplantation.

Objective:To identify the risk factors for postreperfusion syndrome (PRS) during living donor liver transplantation in pediatric patients with biliary atresia.Methods:The clinical data from pediatric patients who underwent living donor liver transplantation from January 2020 to December 2021 in our hospital were retrospectively analyzed. The clinical data included: (1) general information of the pediatric patients such as age, gender, height and body weight; (2) preoperative data such as left ventricular ejection fraction, pediatric end-stage liver disease score, serum aminotransferase, aspartate aminotransferase, total bilirubin, International Normalised Ratio and creatinine concentrations, and whole blood Hb concentration; (3) intraoperative data such as vital signs and blood gas analysis parameters immediate before reperfusion, time of anhepatic phase, donor liver cold ischemia time, transplanted liver quality, time of surgery, anesthesia time, volume of urine, blood loss, amount of blood transfused, and amount of fresh frozen plasma transfused. The pediatric patients were divided into PRS group and non-PRS group according to whether intraoperative PRS occurred. Risk factors for PRS were analyzed using binary logistic regression analysis.Results:A total of 304 pediatric patients were finally enrolled, with 132 cases in PRS group and 172 cases in non-PRS group. The incidence of PRS was 43.4%. The results of logistic regression analysis showed that prolonged liver graft cold ischemic time ( OR=1.031, 95% confidence interval 1.021-1.042, P<0.001) and body temperature <36 ℃ immediately before reperfusion ( OR=3.095, 95% confidence interval 1.656-5.785, P<0.001) were risk factors for PRS. Conclusions:Body temperature immediately before reperfusion<36.0 ℃ and prolonged liver graft cold ischemic time are risk factors for PRS during living donor liver transplantation in pediatric patients with biliary atresia.

Objective:To prospectively follow up the patients with ileocecal inflammatory lesions, to explore the characteristics of Crohn′s disease(CD) at early stage, and to provide references for early diagnosis of CD.Methods:From January 2013 to December 2018, at Department of Gastroenterology, The Seventh Medical Center of PLA General Hospital, 232 patients with unexplained ileocecal inflammatory lesions under colonoscopy examination were enrolled, which were followed up for more than one year. Chi-square test and Fisher exact probability text were used to compare the patients with early CD, with non-specific enteritis and intestinal tuberculosis in abdominal symptoms (abdominal pain, diarrhea, abdominal distension, constipation, hematochezia, changes in bowel habits), accompanying symptoms (oral ulcer, arthralgia), the proportion of patients with elevated erythrocyte sedimentation rate (ESR) or elevated C-reactive protein (CRP) level, serum antineutrophilic cytoplasmic antibody (ANCA), anti-saccharomyces cerevisiae antibody (ASCA), tuberculosis infection of T cells spot test, positive rate of fecal occult blood, lesion size, morphology, involvement site under endoscopy and histopathological results. Multivariate binary logistic regression was used to analyze the related factors of early CD.Results:Among 232 patients, 155 were males and 77 were females, and the age of first diagnosis was (43.9±13.8) years old. The follow-up period (range) was 27 months (12 to 79 months). Twenty-nine cases (12.5%) were diagnosed as early CD, 45 cases (19.4%) were intestinal tuberculosis, 105 cases (45.3%) were non-specific enteritis, and 53 cases (22.8%) as undetermined. All of 29 patients with early CD had abdominal symptoms, which accounted for 16.9% (29/172) of 172 patients with ileoceccal inflammatory lesion as well as abdominal symptoms. In early CD patients, the proportions of patients with abdominal pain, elevated CRP level and ESR level, positive rate of ASCA, positive rate of tuberculosis infection T cells and percentage of patients with thickened intestinal wall were all higher than those in patients with non-specific enteritis (62.1%, 18/29 vs. 33.3%, 35/105; 13.8%, 4/29 vs. 0; 13.8%, 4/29 vs. 1.0%, 1/105; 24.1%, 7/29 vs. 1.0%, 1/105; 20.7%, 6/29 vs. 3.8%, 4/105; 95.7%, 22/23 vs. 0), and the proportion of patients without abdominal symptoms was lower than that of patients with non-specific enteritis (0 vs. 31.4%, 33/105). And the differences were statistically significant ( χ2=6.692, Fisher exact probability text, χ2=7.162, χ2=17.826, χ2=7.497, Fisher exact probability text, and Fisher exact probability text, all P<0.05). Early CD patients were more likely to have multiple lesion sites (55.2%, 16/29), and mainly deep ulcers (55.2%, 16/29) and ulcers with a long diameter of 5 to 10 mm (39.3%, 11/28). The lesions of non-specific enteritis were mostly confined to the end of ileum (75.2%, 79/105), which were mainly superficial ulcers (41.0%, 43/105) and ulcers with a long diameter less than 5 mm (69.0%, 49/71). The proportion of patients without abdominal symptoms and the positive rate of tuberculosis infection of T cells spot test of early CD patients were both lower than those of intestinal tuberculosis group (0 vs. 15.6%, 7/45 and 20.7%, 6/29 vs. 68.9%, 31/45). The positive rate of ASCA and the proportion of patients with thickened intestinal wall were higher than those of intestinal tuberculosis group (24.1%, 7/29 vs. 0 and 95.7%, 22/23 vs. 11/19), and the differences were statistically significant (Fisher exact probability text, χ2=13.713, Fisher exact probability text and χ2=6.710, all P<0.05). The results of multivariate binary logistic regression analysis showed that abdominal pain and positive ASCA were independent risk factors for early CD (odds ratio ( OR)=2.855, 95% confidence interval ( CI) 1.014 to 8.037, P=0.047; OR=10.033, 95% CI 2.274 to 44.250, P=0.002). Conclusions:Prospective follow-up for more than one year in patients with unexplained ileocecal inflammatory lesions can effectively identify and diagnose early CD. Ileocecal inflammatory lesions with abdominal symptoms are one of the early manifestations of CD. Abdominal pain and positive serum ASCA at the initial diagnosis are independent risk factors for early diagnosis of CD.