Clinical efficacy analysis of different interventional approaches for patent ductus arteriosus in children (≤7 years) / 中国胸心血管外科临床杂志

@#Objective    To explore the safety and effectiveness of different interventional approaches for the treatment of patent ductus arteriosus (PDA) in children. Methods    The children (≤7 years) who underwent interventional treatment for PDA from 2019 to 2020 in our hospital were retrospectively included. The patients were divided into 3 groups according to the procedures: a conventional arteriovenous approach group, a simple venous approach group, and a retrograde femoral artery approach group. The clinical efficacy of the patients was compared. Results     A total of 220 patients were included. There were 78 males and 142 females, with an average age of 3.21±1.73 years, weight of 14.99±5.35 kg, and height of 96.19±15.77 cm. The average diameter of the PDA was 3.35±1.34 mm. A total of 85 patients received a conventional arteriovenous approach, 104 patients received a simple venous approach, and 31 patients received a retrograde femoral artery approach. The diameter of PDA in the retrograde femoral artery group was smaller than that in the other two groups (3.44±1.43 mm vs. 1.99±0.55 mm; 3.69±1.17 mm vs. 1.99±0.55 mm, P<0.001); the contrast medium usage [40 (30, 50) mL vs. 20 (20, 30) mL; 35 (25, 50) mL vs. 20 (20, 30) mL, P≤0.001] and operation time [32 (26, 44) min vs. 25 (23, 30) min; 29 (25, 38) min vs. 25 (23, 30) min, P<0.05] in the simple venous approach group were significantly less or shorter than those in the other two groups; the length of hospital stay of the conventional arteriovenous group was longer than that in the other two groups [3 (3, 5) d vs. 4 (3, 6) d; 4 (3, 5) d vs. 4 (3, 6) d, P<0.05]. There was no significant difference in postoperative complications. Conclusion    It is safe and effective to close PDA through simple venous approach. The retrograde femoral artery approach has the advantage of simplifying the surgical procedure for PDA with small diameters.

Analysis of risk factors affecting in-hospital mortality in patients with acute mesenteric ischemia / 中华消化杂志

Objective:To investigate the risk factors affecting in-hospital mortality in patients with acute mesenteric ischemia (AMI).Methods:From January 1, 2014 to June 30, 2022, the clinical data of 67 patients diagnosed with AMI at Renmin Hospital of Wuhan University were retrospectively analyzed, which included basic data (age, gender, past medical history and comorbidities, etc.), laboratory results (white blood cell count (WBC), alanine aminotransferase (ALT), aspartate aminotransferase (AST), creatinine, prothrombin time (PT), etc.), and imaging manifestations (intestinal pneumatosis, intestinal wall thickening, intestinal dilation, ascites). The clinical data of AMI patients who died during hospitalization were compared with that of AMI patients who survived. Binary logistic regression was used to analyze the independent risk factors of in-hospital mortality in patients with AMI. Mann-Whitney U test and chi-square test were used for statistical analysis. Results:Among the 67 patients with AMI, 17 died and 50 survived. There were significant differences between died and survived patients with AMI in age, the proportion of patients with organ failure, WBC, ALT, AST, creatinine, PT, and the proportion of patients with intestinal dilatation and ascites (76 years old(68 years old, 79 years old) vs. 61 years old (50 years old, 74 years old), 12/17 vs.12.0%(6/50), 15.8×10 9/L(13.5×10 9/L, 23.7×10 9/L) vs. 12.1×10 9/L (9.1×10 9/L, 19.4×10 9/L), 32.0 U/L(19.0 U/L, 88.5 U/L) vs. 20.5 U/L(14.8 U/L, 29.0 U/L), 64.0 U/L(33.8 U/L, 117.0 U/L) vs. 26.0 U/L (18.5 U/L, 36.8 U/L), 135.0 μmol/L(61.5 μmol/L, 198.5 μmol/L) vs. 73.5 μmol/L(60.5 μmol/L, 85.0 μmol/L), 13.7 s(12.9 s, 16.3 s) vs. 12.7 s (11.9 s, 13.6 s), 13/17 vs. 38.0%(19/50), 10/17 vs. 24.0% (12/50); Z=3.06, χ2=22.16, Z=2.01, 2.69, 4.08, 2.45 and 2.78, χ2=7.53 and 6.98; P=0.002, <0.001, =0.044, =0.007, <0.001, =0.014, =0.006, =0.006 and =0.008). The results of binary logistic regression analysis showed that age ( OR=1.224, 95% confidence interval 1.011 to 1.482, P=0.038), organ failure ( OR=113.989, 95% confidence interval 1.353 to 9 604.644, P=0.036), and ascites ( OR=348.289, 95% confidence interval 1.676 to 72 357.934, P=0.032) were independent risk factors of in-hospital mortality in AMI patients. Conclusion:Age, organ failure and ascites are independent risk factors of in-hospital mortality in AMI patients.

Effect of edaravone on ERK-CREB signaling pathway in hippocampus of aged rats with postoperative cognitive dysfunction / 中华麻醉学杂志

Objective:To evaluate the effect of edaravone on the extracellular signal-regulated kinase (ERK)-cAMP responsive element binding protein (CREB) signaling pathway in the hippocampus of aged rats with postoperative cognitive dysfunction (POCD).Methods:Sixty SPF healthy male Sprague-Dawley rats, aged 20 months, weighing 650-700 g, were divided into 4 groups ( n=15 each) using a random number table method: control group (group C), POCD group (group P), edaravone group (group E) and ERK inhibitor group (group I). The rats received laparotomy under 3% sevoflurane anesthesia to prepare POCD model in P, E and I groups. Edaravone 3 mg/kg was intraperitoneally injected at 30 min before operation in E and I groups, ERK inhibitor PD98059 0.3 mg/kg was injected via the tail vein in group I. The open field test was performed at 3 days after operation to evaluate the spontaneous activity of rats, then Morris water maze test was performed to evaluate the cognitive function of rats on 3-7 days after operation. The rats were sacrificed after the end of Morris water maze test, and hippocampal tissues were obtained for determination of the expression of phosphorylated ERK (p-ERK), phosphorylated CREB (p-CREB), synaptophysin and postsynaptic density protein 95 (PSD-95) (by Western blot) and dendrite length and density of dendrites in hippocampal CA1 area (using Golgi staining). Results:Compared with group C, the escape latency was significantly prolonged after operation, the number of crossing the original platform was reduced, the expression of p-ERK, p-CREB, synaptophysin and PSD-95 was down-regulated, and the dendritic length and density of hippocampal neurons were reduced in group P ( P<0.05). Compared with group P, the escape latency was significantly shortened, the number of crossing the original platform was increased, the expression of p-ERK, p-CREB, synaptophysin and PSD-95 was up-regulated, and the dendritic length and density of hippocampal neurons were increased in group E ( P<0.05). Compared with group E, the escape latency was significantly prolonged, the number of crossing the original platform was reduced, the expression of p-ERK, p-CREB, synaptophysin and PSD-95 was down-regulated, the dendritic length of hippocampal neurons was shortened, and the density of hippocampal neurons was decreased in group I( P<0.05). Conclusions:The mechanism by which edaravone improves POCD may be related to activating ERK/CREB signaling pathway and changing synaptic plasticity in hippocampal CA1 region in aged rats.

Role of PI3K/Akt/mTOR signaling pathway in edaravone-induced reduction of postoperative cognitive dysfunction in aged rats / 中华麻醉学杂志

Objective:To evaluate the role of phosphatidylinositol 3-kinase (PI3K)/serine threonine protein kinase (Akt)/mammalian rapamycin target protein (mTOR) signaling pathway in edaravone-induced reduction of postoperative cognitive dysfunction in aged rats.Methods:Sixty healthy male Sprague-Dawley rats, aged 20 months, weighing 600-700 g, were divided into 4 groups ( n=15 each) using a random number table method: control group (group C), operation group (group O), edaravone group (group E) and PI3K inhibitor LY294002 group (group LY). The rats received laparotomy under 3% sevoflurane anesthesia in O, E and LY groups. Edaravone 3 mg/kg was intraperitoneally injected at 30 min before operation in E and LY groups, and LY294002 0.3 mg/kg was simultaneously injected via the tail vein in group LY. Open field test was performed at 3 days after surgery to evaluate the spontaneous activity of rats, then Morris water maze test was performed to evaluate the cognitive function of rats. The rats were sacrificed after the end of behavioral experiment to isolate hippocampal tissues for determination of the expression of phosphorylated PI3K (p-PI3K), phosphorylated Akt (p-Akt), phosphorylated mTOR (p-mTOR), synaptophysin (SYP) and postsynaptic density protein 95 (PSD 95) (by Western blot ) and dendrite length in hippocampal CA1 area (using Golgi staining). The density of dendrites was calculated. Results:There were no statistically significant differences in exercise speed, distance, and time of staying at the center between the four groups ( P>0.05). Compared with group C, the escape latency was significantly prolonged, the number of crossing the original platform was reduced, the expression of p-PI3K, p-Akt, p-mTOR, SYP and PSD-95 was down-regulated, the dendritic length of neurons in hippocampal CA1 region was shortened, and the density of neurons in hippocampal CA1 region was decreased in group O ( P<0.05). Compared with group O, the escape latency was significantly shortened, the number of crossing the original platform was increased, the expression of p-PI3K, p-Akt, p-mTOR, SYP and PSD-95 was up-regulated, the dendritic length of neurons in hippocampal CA1 region was prolonged, and the density of neurons in hippocampal CA1 region was increased in group E ( P<0.05). Compared with group E, the escape latency was significantly prolonged, the number of crossing the original platform was reduced, the expression of p-PI3K, p-Akt, p-mTOR, SYP and PSD-95 was down-regulated, and the dendritic length of neurons in hippocampal CA1 region was shortened, and the density of neurons in hippocampal CA1 region was decreased in group LY ( P<0.05). Conclusions:The mechanism by which edaravone reduces postoperative cognitive dysfunction is related to activating PI3K/Akt/mTOR signaling pathway and improving synaptic plasticity in aged rats.

Hepatocyte apoptosis fragment product cytokeratin-18 M30 level and non-alcoholic steatohepatitis risk diagnosis: an international registry study / 中华医学杂志(英文版)

BACKGROUND@#Liver biopsy for the diagnosis of non-alcoholic steatohepatitis (NASH) is limited by its inherent invasiveness and possible sampling errors. Some studies have shown that cytokeratin-18 (CK-18) concentrations may be useful in diagnosing NASH, but results across studies have been inconsistent. We aimed to identify the utility of CK-18 M30 concentrations as an alternative to liver biopsy for non-invasive identification of NASH.@*METHODS@#Individual data were collected from 14 registry centers on patients with biopsy-proven non-alcoholic fatty liver disease (NAFLD), and in all patients, circulating CK-18 M30 levels were measured. Individuals with a NAFLD activity score (NAS) ≥5 with a score of ≥1 for each of steatosis, ballooning, and lobular inflammation were diagnosed as having definite NASH; individuals with a NAS ≤2 and no fibrosis were diagnosed as having non-alcoholic fatty liver (NAFL).@*RESULTS@#A total of 2571 participants were screened, and 1008 (153 with NAFL and 855 with NASH) were finally enrolled. Median CK-18 M30 levels were higher in patients with NASH than in those with NAFL (mean difference 177 U/L; standardized mean difference [SMD]: 0.87 [0.69-1.04]). There was an interaction between CK-18 M30 levels and serum alanine aminotransferase, body mass index (BMI), and hypertension ( P  < 0.001, P  = 0.026 and P  = 0.049, respectively). CK-18 M30 levels were positively associated with histological NAS in most centers. The area under the receiver operating characteristics (AUROC) for NASH was 0.750 (95% confidence intervals: 0.714-0.787), and CK-18 M30 at Youden's index maximum was 275.7 U/L. Both sensitivity (55% [52%-59%]) and positive predictive value (59%) were not ideal.@*CONCLUSION@#This large multicenter registry study shows that CK-18 M30 measurement in isolation is of limited value for non-invasively diagnosing NASH.

Efficacy of optimal pulse technology in the treatment of demodex blepharitis and its effect on ocular surface function / 国际眼科杂志(Guoji Yanke Zazhi)

AIM: To investigate the efficacy of optimal pulse technology(OPT)in the treatment of demodex blepharitis and its influence on ocular surface function.METHODS: A retrospective study was conducted from February 2018 to October 2020. A total of 127 patients(254 eyes)with demodex blepharitis were assigned to the observation group and the control group according to the treatment method. The control group(63 patients, 126 eyes)were given conventional hot compress, eye cleansing and drug therapy. On this basis, the observation group(64 patients, 128 eyes)was treated with OPT. Both groups were given 6wk of continuous treatment. Demodex count, Marx's line scores, meibum character scores, ocular surface disease index(OSDI)scores, non-invasive tear break-up time(NIBUT), non-invasive tear meniscus height(NITMH)and lipid layer thickness(LLT)were compared between the two groups, and safety was evaluated.RESULTS: After 6wk of treatment, demodex count, Marx's line scores, meibum character scores and OSDI scores of the two groups decreased. NIBUT, NITMH and LLT increased. Meanwhile, demodex count, Marx's line scores, meibum character scores and OSDI scores of the observation group were significantly lower than those in the control group. NIBUT, NITMH and LLT were longer/larger than those in the control group(P<0.001). No obvious abnormality of intraocular pressure or conjunctival/corneal injury was observed in either group.CONCLUSION:OPT is effective and safe in the treatment of demodex blepharitis.

Value of spectral domain-optical coherence tomography parameters on evaluating visual acuity improvement after internal limiting membrane peeling of macular hole / 国际眼科杂志(Guoji Yanke Zazhi)

AIM: To analyze the application value of spectral domain-optical coherence tomography(SD-OCT)parameters on evaluating visual acuity improvement after internal limiting membrane peeling of macular hole.METHODS: The retrospective analysis was performed on the clinical data of 82 patients(82 eyes)with idiopathic macular hole(IMH)who underwent vitrectomy + internal limiting membrane peeling + long-acting gas tamponade in the hospital between May 2019 and February 2021. The correlation between IMH closure and SD-OCT parameters at 3mo after surgery was analyzed, and the risk factors for poor postoperative visual acuity improvement were evaluated.RESULTS: Spearman rank correlation coefficient analysis showed that IMH closure at 3mo after operation was positively correlated with preoperative external limiting membrane(ELM)defect diameter(rs=0.308, P&#x003C;0.05), and it was negatively correlated with preoperative macular hole index(MHI; rs=-0.266, P&#x003C;0.05). Logistic regression analysis revealed that preoperative MHI≥0.5 was a protective factor affecting poor postoperative visual acuity improvement(OR=0.691, P&#x003C;0.05).CONCLUSION: SD-OCT can predict the surgical efficacy by detecting the preoperative MHI and ELM defect diameter, and it is beneficial to judging the improvement of visual function.

Preliminary analysis of subclinical leaflet thrombosis after percutaneous aortic valve replacement with balloon dilation / 中国胸心血管外科临床杂志

@#Objective    To analyze the factors influencing the occurrence of subclinical leaflet thrombosis (SLT) after percutaneous aortic valve replacement using balloon-expandable valve (Sapien3, S3). Methods     Retrospective analysis was made on 62 patients with severe aortic stenosis undergoing percutaneous aortic valve replacement using S3 in our center from September 2020 to June 2022. Patients with a history of vascular atherosclerosis or with significant increase or insignificant decrease of aortic valve flow or gradient pressure during follow-up were selected for CT examination. Results     A total of 26 patients were finally included, with an average age of 70.31±8.90 years, and the male proportion was higher (n=15, 57.69%). Among them, 5 patients had SLT. Compared with the non-SLT group, patients in the SLT group were older (68.52±8.80 years vs. 77.80±4.66 years, P=0.007). The age factor (≥75 years) and the diameter of the ascending aorta were associated with SLT (both P<0.05). Conclusion     The incidence of SLT is higher in the elderly patients. It is speculated that SLT is related to the characteristics of short balloon dilation valves and low blood flow dynamics of valve racks.

Research advances in early screening and diagnosis of hepatocellular carcinoma / 临床肝胆病杂志

For the high-risk population, early screening and diagnosis are important measures to achieve good control of liver cancer and reduce the burden of liver cancer, and determining the high-risk population of liver cancer and formulating appropriate liver cancer screening strategies are the key to realizing the early screening and diagnosis of liver cancer. The risk assessment model for liver cancer is an important method for rapid and convenient identification of the high-risk population of liver cancer. Based on the risk stratification of liver cancer, the methods such as imaging technology, serological markers, liquid biopsy, metabolomics, and glycomics can be used for accurate early screening and diagnosis of liver cancer, so as to achieve the goal of early treatment.

Metabolomic study on urine of chronic inflammation rats treated with Buyang Huanwu Decoction based on UPLC-Q-TOF-MS / 中国中药杂志

The study investigated the effect of Buyang Huanwu Decoction(BYHWD) on endogenous biomarkers in the urine of rats with chronic inflammation induced by lipopolysaccharide(LPS) using ultra-high performance liquid chromatography-quadrupole-time-of-flight-mass spectrometry(UPLC-Q-TOF-MS), aiming to elucidate the molecular mechanism underlying the therapeutic effect of BYHWD on chronic inflammation from a metabolomics perspective. Male SD rats were randomly divided into a normal group, a model group, and low-, medium-, and high-dose BYHWD groups(7.5, 15, and 30 g·kg~(-1)). The model group and BYHWD groups received tail intravenous injection of LPS(200 μg·kg~(-1)) on the first day of each week, followed by oral administration of BYHWD once a day for four consecutive weeks. Urine samples were collected at the end of the administration period, and UPLC-Q-TOF-MS was used to analyze the metabolic profiles of the rat urine in each group. Multivariate statistical analysis methods such as principal component analysis(PCA), partial least squares-discriminant analysis(PLS-DA), and orthogonal partial least squares-discriminant analysis(OPLS-DA) were used to analyze the effect of BYHWD on endogenous metabolites. One-way ANOVA and variable importance for the projection(VIP) were used to screen for potential biomarkers related to chronic inflammation. The identified biomarkers were subjected to pathway and enrichment analysis using MetaboAnalyst 5.0. A total of 25 potential biomarkers were screened and identified in the rat urine in this experiment. Compared with the normal group, the model group showed significant increases in the levels of 14 substances(P<0.05) and significant decreases in the levels of 11 substances(P<0.05). BYHWD was able to effectively reverse the trend of most endogenous biomarkers. Compared with the model group, BYHWD significantly down-regulated 13 biomarkers(P<0.05) and up-regulated 10 biomarkers(P<0.05). The metabolic products were mainly related to the biosynthesis of pantothenic acid and coenzyme A, tryptophan metabolism, retinol metabolism, and propionate metabolism. BYHWD has therapeutic effect on chronic inflammation induced by LPS, which may be related to its ability to improve the levels of endogenous metabolites, enhance the body's anti-inflammatory and antioxidant capabilities, and restore normal metabolic activity.

Effect of anodal or cathodal transcranial direct current stimulation on upper limb function of stroke patients / 中国康复理论与实践

ObjectiveTo observe the clinical efficacy of anodal or cathodal transcranial direct current stimulation (atDCS and ctDCS) on upper limb function of stroke patients with moderate to severe upper extremity impairment. MethodsFrom January to September, 2022, 69 patients in Zhongda Hospital Southeast University were randomly divided into control group (n = 23), atDCS group (n = 23) and ctDCS group (n = 23). All the groups received conventional rehabilitation. Moreover, atDCS group received atDCS over the M1 area of the affected hemisphere, ctDCS group received ctDCS over the M1 area of the unaffected hemisphere, and the control group received placebo stimulation. Before and four weeks after treatment, they were assessed with Fugl-Meyer Assessment-Upper Extremities (FMA-UE), Wolf Motor Function Test (WMFT) and modified Barthel index (MBI). ResultsBefore treatment, there was no significant difference in the scores of FMA-UE, WMFT and MBI among groups (F < 1.165, P > 0.05). After treatment, all the scores improved significantly in all the groups (|t| > 6.412, P < 0.001), and were higher in the atDCS group and ctDCS group than in the control group (P < 0.05), however, no significant difference was found between the atDCS group and ctDCS group (P > 0.05). ConclusionBoth atDCS and ctDCS could improve the upper limb motor function and activities of daily living of stroke patients with moderate to severe upper extremity impairment.

Clinical efficacy of hepatic artery chemoembolization combined with systemic treatment in the treatment of recurrent hepatocellular carcinoma with abdominal lymph node metastasis / 中华消化外科杂志

In China, patients with hepatocellular carcinoma (HCC) are usually with late stage and long medical history when diagnosed, resulting in a lower 5-year survival rate. For advanced HCC, guidelines from different countries have different indications for local treatment. The applica-tion of hepatic artery chemoembolization has brought new treatment opportunities to patients with advanced HCC. Due to tumor heterogeneity, the response to immunotherapy is different in patients with intrahepatic recurrent lesions and extrahepatic metastatic lesions of primary hepatic carcinoma. Therefore, hepatic artery chemoembolization combined with systemic treatment is beneficial to prolong the survival of patients. The authors introduce the clinical experience of a patient with recurrent advanced HCC combined with abdominal lymph node metastasis who was treated with hepatic artery chemoembolization combined with atezolizumab plus bevacizumab. The results show that tumor is controlled in a short period with a good clinical effect.

Feasibility of three-dimensional CT axial sequence assisted volumetric measurement for atrial septal defect evaluation / 中华放射学杂志

Objective:To explore the feasibility of three-dimensional CT axial sequence assisted volumetric measurement (CTAS) in evaluating atrial septal defect (ASD).Methods:The patients with single secundum ASD who successfully underwent interventional therapy in Fuwai Hospital from January 2016 to December 2019 were retrospectively collected. The patients underwent coronary CT angiography (CTA) before and on the second day after closures, and DSA examinations during operation. A total of 52 cases met the inclusion conditions, among them, there were 37 patients with large defects which had deficient inferior rims ≤3 mm, and 15 patients with severe pulmonary arterial hypertension that occluded with fenestrated ASD occluder. The CT data of patients before and after operation were reconstructed by CTAS. Then the anatomical structure of ASD before the operation was evaluated, including the long diameter and short diameter of ASD, and the CT three-dimensional volume diameter of ASD was calculated by using the equivalent circle conversion formula of ellipse. The waist diameter of occluder and rims of the ASD were measured after occlusion on postoperative CT three-dimensional volume reconstruction images. Meanwhile, the deployed occluder waist dimension was measured in DSA examination during the operation by simulating the balloon measurement of ASD. Lastly, paired t-test and consistency analysis were carried out among the values of parameters. Results:Before operation, the equivalent circle diameter of ASD was (32.3±5.4) mm measured by CTAS. After ASD occlusion, the size of the waist dimension measured by DSA and CTAS were (32.5±4.9) mm and (32.6±4.9) mm. There were no significant differences between them ( P>0.05). There were also no significant differences for each rims of the ASD pre and post operation on CTAS except for the inferior rims and the total length of atrial septum in superior-inferior direction ( P>0.05). Conclusion:As an alternative to balloon sizing, CTAS can be used as a reference standard to conduct ASD interventional treatment.

Predictive value of postoperative hypolordosis in the occurrence of adjacent segment disease after lumbar fusion surgery / 中华骨科杂志

Objective:To investigate the value of relative lumbar lordosis (RLL) and lumbar distribution index (LDI) in predicting the occurrence of adjacent segment disease (ASDis) after lumbar fusion surgery.Methods:This study retrospectively reviewed 163 consecutive patients (58 males and 105 females) who had undergone lumbar fusion and had been followed over 2 years,with an average age of 58.7 years; among them, 74, 71, and 18 patients had undergone fusion of one-level, two-level, and three-level, respectively. They were divided into the non-ASDis group and ASDis group based on the presence of ASDis or not. Pre- and post-operative spinopelvic parameters were measured on the upright lateral radiographs. RLL was calculated as measured lumbar lordosis (LL) minus ideal LL, and LDI was calculated as the ratio of postoperative low lumbar lordosis (LLL) to LL. Each parameter was stratified into 1 "aligned" subgroup and 3 "disproportioned" subgroups in accordance with values. Cochran-Armitage test of trend andlogistic analysis were performed to investigate the association between these two parameters and the occurrence of ASDis.Results:The average follow-up duration after initial surgery was 46±14 months (range, 25 to 134 months). Twenty-four (14.7%) patients were diagnosed as ASDis. The age ( t=3.13, P=0.002) and the proportion of 2-level and 3-level fusion (χ 2=10.27, P=0.006) in the ASDis group were significantly higher than those in the non-ASDis group ( P<0.05). There were no statistically significant differences between groups with respect to other general data. The ratios of moderate and severe hypolordosis of RLL were significantly higher in the ASDis group than that in the non-ASDis group (χ 2=16.92, P<0.001). There was also a significant linear trend with higher degree of hypolordosis being associated with higher rates of ASDis. However, distribution of four statuses of LDI did not differ statistically between groups. After controlling the confounders, the logistic regression analysis revealed that age, odd ratio ( OR)=1.07, 95% CI: (1.01, 1.13), P=0.018), moderate[ OR=4.34, 95% CI: (1.03, 18.41), P=0.046] and severe hypolordosis [ OR=11.64, 95% CI: (1.30, 104.49), P=0.028] were significantly associated with the occurrence of ASDis. Conclusion:A significant association between postoperative RLL and occurrence of ASDis after lumbar fusion surgery were detected. Setting surgical goals according to RLL may help reduce the ASDis rate. However, LDI is not identified to be predictive factors of the occurrence of ASDis.

Adding satellite rods to standard two-rod construct for promoting postoperative vertebral remodeling in scheuermann kyphosis / 中华骨科杂志

Objective:To investigate reversal of vertebral wedging and to evaluate the contribution of adding satellite rods to correction maintenance in patients with adolescent Scheuermann kyphosis (SK) after posterior-only instrumented correction.Methods:A retrospective cohort study with SK was performed. From January 2009 to December 2018, a total of 26 SK patients (21 males and 5 females) who received posterior instrumented correction surgery at the age of 13–16 years were included. The mean age was 14.5±0.9 years. Risser sign was level 1 in 5 patients, level 2 in 10 patients and level 3 in 11 patients. Patients receiving placement with a standard 2-RC construct were composed in the 2-RC group, and those with enhanced instrumentation with satellite rods adding to 2-RC via duet screws were assigned to the S-RC group. The anterior vertebral body height (AVBH), posterior vertebral body height (PVBH), global kyphosis (GK), disc wedging angle (DWA), vertebral wedging angle (VWA) and Scoliosis Research Society questionnaires-22 (SRS-22) were collected preoperatively, immediately postoperatively, and at the latest follow-up. Further, these outcomes were compared between the two groups.Results:The average follow-up durations for the S-RC and 2-RC groups were 3.1±1.0 and 2.9±1.1 years ( t=0.04, P=0.837), respectively. Remarkable postoperative correction of GK was observed in S-RC group and 2-RC group without significant difference (51.1%±5.1% vs. 46.7%±5.8%, t=1.74, P=0.099). The correction loss of S-RC group was significantly less than that at 2-RC group during follow-up (0.6°±0.3° vs. 1.8°±0.8°, t=-6.52, P<0.001). The ratio between AVBH and PVBH of deformed vertebrae notably increased in S-RC group and 2-RC group from post-operation to the latest follow-up ( P<0.05). Compared with the 2-RC group, the S-RC group had significantly greater increase in AVBH/PVBH ratio during follow-up (32.6%±8.5% vs. 22.5%±13.4%, t=2.31, P=0.030). The two groups had similar preoperative and postoperative SRS-22 questionnaire scores for all domains ( P>0.05). Conclusion:The AVBH of deformed vertebrae could be increased after posterior correction in SK patients. Compared with the traditional two-rod construct, satellite rods construction could be more effective which could achieve greater vertebral remodeling and less correction loss.

Study on difference of transitional components in blood of Radix Aconiti processed by Hezi decoction / 中国药理学通报

Aim To analyze the differences of transitional components in serum before and after processing of Radix Aconiti, and to reveal the processing mechanism of Radix Aconiti from the perspective of serum pharmacochemistry. Methods Radix Aconiti prepared by processing Radix Aconiti and Hezi decoction was subdivided into 0.5% sodium carboxymethylcellulose suspension, and then the drug containing serum was prepared. The UPLC characteristic maps of serum in blank group, Radix Aconiti group and Radix Aconiti prepared by processing Radix Aconiti Decoction were established, analyzed and compared, and the differences of serum migration components before and after processing were determined. Results A total of 11 blood transitional components were detected and 6 prototype components were identified in the drug containing plasma samples of raw Aconitum group. A total of 14 blood transitional components were detected and 8 prototype components were identified in the drug containing plasma samples of processed Aconitum group of Hezi decoction. Conclusions There are significant differences in serum transitional components before and after processing, which provides an experimental basis for the further study of the processing mechanism of Herba Aconiti in Hezi Decoction in the future.

Micro-locking plate external fixation for the treatment of proximal phalanx comminuted fractures / 中国骨伤

OBJECTIVE@#To explore clinical efficacy of external placement of micro-locking plate combined with small incision reduction in treating proximal phalanx comminuted fractures.@*METHODS@#From January 2018 to December 2019, 17 patients with proximal phalanx comminuted fractures were treated with micro-locking plate combined with small incision open reduction, including 13 males and 4 females, aged from 16 to 64 years old with an average of (37.2±20.1) years old. Two patients were accompanied by soft tissue extrusion and opening injuries, which were treated with fixed treatment after the first-stage emergency debridement. Curative effect was evaluated according to total active flexion scale (TAFS) of American Hand Surgery Association at 6 months after operation;and fracture healing, nailing, local soft tissue healing, complications were observed.@*RESULTS@#All patients were followed up from 6 to 12 months with an avaerge of(9.3±3.6) months. Two patients occurred delayed union, 1 occurred local skin necrosis and was treated with the second-stage skin grafting to repair wound surface. No external screw breakage or infection was reported, skin soft tissue healed favorably and reached bony union, the union time from 12 to 24 weeks with an average of (15.7±2.1) weeks. According to TAFS standard, 9 patients got excellent result, 5 good and 3 poor at 6 months after operation.@*CONCLUSION@#External micro-locking plate combined with small incision reduction in treating proximal phalanx comminuted fracture, which has advantages of good condition of skin and soft tissue, simple operation, early functional exercise, good range of motion of interphalanx joint, and function score of recovery period is high.

Effect of septic shock rapid response group on compliance with hour-1 bundle therapy strategy / 中华急诊医学杂志

Objective:To investigate the effect of septic shock rapid response team (SSRRT) on the compliance and prognosis of hour-1 bundle therapy strategy in emergency department patients with septic shock.Methods:This study was conducted on emergency patients with septic shock who were admitted to Huai’an First Hospital Affiliated to Nanjing Medical University from January 2020 to December 2021. The inclusion criteria were emergency patients with septic shock who met the international guideline for surviving sepsis campaigns (Sepsis 3.0). Exclusion criteria: age<18 years, pregnant patients, patients transferred from another hospital who had received fluid resuscitation and/or vasoactive drugs, patients requiring emergency surgery, patients with emergency detention time<1 h, patients who refused to place central venous catheterization or had contraindications for catheterization, and patients who refused to give informed consent. SSRRT was established in January 2021. According to the establishment of SSRRT, patients were divided into the pre-SSRRT intervention group and the post-SSRRT intervention group. The general clinical data of the enrolled patients were collected, including vital signs, lactate, fluid resuscitation volume, maximum vasoactive drug pumping rate at the diagnosis of septic shock, implementation of hour-1 bundle therapy strategies, and ICU and 28-day mortality. Statistical software SPSS 25.0 was used. Pearson chi-squared test was used to compare categorical variables between groups, and Mann-Whitney U test was used to compare continuous variables between groups.Results:A total of 289 emergency patients met the inclusion criteria, 115 patients were excluded, and 174 patients were eventually included, including 83 patients in the pre-SSRRT group and 91 patients in the post-SSRRT group. Compared with the pre-SSRRT group, the proportion of lactate monitoring (54.2% vs. 100.0%, P<0.001), blood culture (27.7% vs. 93.4%, P<0.001), antibiotics (57.8% vs. 97.8%, P<0.001), fluid resuscitation volume ≥ 30 mL/kg (4.8% vs. 34.1%, P<0.001), and mean arterial pressure ≥ 65 mmHg (49.4% vs. 68.1%, P<0.001) were significantly increased. There was no significant difference in ICU mortality (50.6% vs. 37.4%, P=0.079) or 28-day mortality (53.0% vs. 38.5%, P=0.054) between the two groups. Conclusions:SSRRT can significantly improve the compliance of hour-1 bundle therapy strategy implementation in patients with emergency septic shock, and has a trend of decreasing mortality.

Analysis of Quality Changes of Platycladi Semen Before and After Deterioration Based on HS-SPME/GC-MS and Electronic Sensory Technology / 中国实验方剂学杂志

ObjectiveTo analyze the quality changes of Platycladi Semen before and after the deterioration of moth-eaten and rancidity during storage. MethodFour types samples of Platycladi Semen， including normal， moth-eaten， oxidative rancidity and hydrolytic rancidity， were determined for volatile components， odor， and taste based on headspace solid phase microextraction/gas chromatography-mass spectrometry （HS-SPME/GC-MS） and electronic sensory techniques such as electronic nose and electronic tongue. Volatile components were identified by searching the database and manual comparison， the odor and taste were determined by the response values of the electronic nose and electronic tongue sensors， and the difference between samples before and after deterioration was studied by multivariate statistical analysis. ResultA total of 85 compounds were identified in Platycladi Semen samples. Compared with the normal samples， the number of volatile compounds in samples after hydrolytic rancidity decreased by 5， the number of volatile compounds in samples after moth-eaten and oxidative rancidity increased by 1 and 21， respectively. Aldehydes and acids accounted for majority of types. Among them， the contents of N-hexanoic acid， hexanal and propionic acid in the samples of oxidative rancidity reached 11.49%， 10.21% and 7.52%， which became the key indicators of rancidity. There was significant variance among the odor components corresponding to W1W， W2W and W1S sensors by electronic nose analysis. It was indicated that the value of sourness in deteriorated samples generally increased by mean of electronic tongue analysis. Compared with normal samples， the moth-eaten samples had changed slightly and rancidity samples had changed significantly especially oxidative rancidity samples of volatile components， odor and taste by multivariate statistical analysis. ConclusionIn terms of Platycladi Semen， the oxidative rancidity caused by nature storage for 12 months has the greatest impact on the quality. Therefore， it should be mainly to prevent oxidative rancidity to ensure the quality of Platycladi Semen.

Identification of Medicinal Aconitum Species Based on ITS2 Sequences and Analysis of Genetic Relationship / 中国实验方剂学杂志

ObjectiveThe internal transcribed spacer （ITS） 2 region of ribosomal gene， a DNA barcode， was employed to identify 12 medicinal Aconitum species and the genetic relationship among the species was analyzed. MethodA total of 30 samples of the 12 species were collected. The DNA was extracted with spin column plant genomic DNA kit and the universal primers of ITS2 sequence were used for polymerase chain reaction （PCR） amplification， followed by electrophoresis detection and bi-directional sequencing. The yielded sequences were aligned and spliced by CodonCode Aligner 17.0 and sequence variation was analyzed by MEGA 7.0. The secondary structure was predicted by ITS2 Database and the neighbor-joining （NJ） method was applied to generate the phylogenetic tree. ResultThe ITS2 sequences of the 12 species were 220-221 bp， with the average guanine and cytosine （GC） content of 64.09%， 140 variable sites， 137 informative sites， and 81 conservative sites. The intraspecific genetic distance （K2P） was smaller than the interspecific genetic distance. According to the secondary structures of ITS2 sequences and NJ cluster analysis， A. scaposum， A. sinomontanum， and A. barbatum had close genetic relationship， while the rest nine showed close kinship， particularly A. soongaricum and A. yinschanicum. ConclusionITS2 sequence is of great value for the molecular identification and genetic relationship determination of Aconitum， which provides a new method for the study of ethnomedicine.