Objective:To explore the clinical significance of hepatitis B virus (HBV) DNA detection in screening patients with hepatitis B.Methods:Clinical data of 682 331 hepatitis B patients were retrospectively analyzed. The HBV DNA of these patients was detected in the Fifth Medical Center of the PLA General Hospital from January 2017 to December 2021, there were 481 159 males and 201 172 females in this cohort, the average age was (41.34±16.13) years. Patients were divided into HBV DNA positive group (219 879 cases) and HBV DNA negative group (462 452 cases). Clinical characteristics, data of five serologic markers of hepatitis B and hepatitis B surface antigen quantification (HBsAg-QN), liver function, alpha fetoprotein (AFP) and prothrombin time (PT) results were collected and analyzed and compared between the two groups.Results:The positive rate of HBV DNA was 32.22% (219 879/682 331) in this cohort. Among the different age groups, the positive rate of HBV DNA was the highest (40.34%, 128 038/317 380) in young people aged 18-44 years. The proportion of patients was lower among aged <1, 45-59 and ≥60 years patients in HBV DNA positive group than that in HBV DNA negative group, while the proportion of patients was higher among aged 1-17 and 18-44 years patients in HBV DNA positive group than that in HBV DNA negative group (all P<0.001). Among 2 291 <1-year-old infants tested for HBV DNA, 71 infants were HBV DNA positive. The positive rates of HBV DNA from 2017 to 2021 were 4.86% (27/556), 3.68% (14/380), 3.47% (17/490), 1.55% (6/386) and 1.46% (7/479) respectively, showing a downward trend year by year. The positive rate of HBV DNA in acute hepatitis B (AHB) patients was the highest (49.88%, 208/417) among 680 040 patients with hepatitis B. The proportion of AHB patients (0.09%, 208/219 808) and chronic hepatitis B (80.44%, 176 806/219 808) in HBV DNA positive group was higher than that in HBV DNA negative group [0.05% (209/460 232) and 65.45% (301, 216/460 232)], while the proportion of patients with HBV-related liver cirrhosis (11.28%, 24 793/219 808), HBV-related liver cancer (6.72%, 14 775/219 808), liver cancer surgery (1.39%, 3 055/219 808) and liver transplantation (0.08%, 171/219 808) were lower than that in HBV DNA negative group [22.99% (105 813/460 232), 7.25% (33 385/460 232), 3.50% (16 129/460 232) and 0.76% (3 480/460 232)] (all P<0.001). At the same time, positive rate of hepatitis B surface antigen (HbsAg), HBsAg-QN, hepatitis B e antigen (HbeAg), level of total bilirubin, total bilirubin, AFP and PT were higher in HBV DNA positive group than those in HBV DNA negative group, while the age, male ratio and albumin results in HBV DNA positive group were lower than those in HBV DNA negative group (all P<0.01). The HBV DNA loads were higher in HBsAg positive group, hepatitis B surface antibody positive group and HBeAg positive group than those in respective negative groups, while the HBV DNA loads were lower in hepatitis B e antibody positive group and hepatitis B core antibody positive group than those in respective negative groups (all P<0.001). Conclusions:The mother to child transmission rate of<1-year-old infants decreases year by year. HBV DNA is an important factor for the progression of hepatitis B disease. HBV DNA positive hepatitis B patients with higher HBsAg-QN values are more likely to have abnormal serum markers such as liver dysfunction. HBV DNA detection is therefore of clinical importance in screening patients with hepatitis B.

Objective:To compare the effects of thoracoscopic anatomical segmentectomy and thoracoscopic lobectomy on patients' respiratory function.Methods:Retrospective analysis of 326 patients who underwent thoracoscopic surgery from July 2016 to July 2019(209 patients underwent anatomical segmentectomy, 117 patients underwent lobectomy). According to variables including gender, age, tumor location, smoking history and BMI, two propensity score-matched cohorts including 89 patients respectively were constructed. The patients’ baseline data and respiratory function date of the patients pre-operation and post-operation were analyzed. The measurement data that obey the normal distribution were described by mean±standard deviation, and the t-test was used for comparison between groups; the measurement data of non-normal distribution was described by the median value( P25, P75), and the Wilcoxon rank sum test was used for the comparison between groups; The data was described by frequency, and the chi-square test or Fisher's exact probability method was used for comparison between groups. Results:At the first-month follow-up after surgery, there was no significant difference in the variation of FVC[(0.48±0.40)L vs.(0.34±0.37)L, P=0.215)and FEV1[(0.52±0.46)L vs.(0.43±0.77)L, P=0.364), and in the change rate of FVC(%)[15.23(8.74, 21.25) vs. 14.58(7.75, 19.40), P=0.122], FEV1(%)[17.25(9.56, 22.78) vs. 16.42(9.15, 20.28), P=0.154]and DLCO(%)[18.54(10.88, 25.68)vs. 17.45(9.58, 23.75) P=0.245]. Between the segmentectomy group and lobectomy group, there was a significant difference in the alteration of FVC[(0.50±0.47)L vs. (0.29±0.31)L, P=0.031] and FEV1[(0.44±0.34)L vs.(0.24±0.23)L, P<0.001], the change rate of FVC(%)[14.27(7.87, 22.32) vs. 9.95(5.56, 17.24), P=0.008]、FEV1(%)[15.23(8.36, 22.17)vs. 10.05(5.15, 18.54), P<0.001]and DLCO(%)[13.74(6.24, 19.78) vs. 4.45(-2.32, 13.75), P=0.023]in the 6th month after surgery. The lobectomy group had a higher variation of FEV1[(0.34±0.49)L vs.(0.18±0.26)L, P=0.006] and change rate of FVC(%)[9.28(2.15, 18.94) vs. 5.24(0.52, 11.45), P=0.0032] and FEV1(%)[10.45(3.15, 21.32) vs. 6.50(1.55, 14.24), P<0.001] in the first year after surgery. However, the variation of FVC[(0.29±0.36)L vs.(0.21±0.24)L, P=0.176) and the change rate of DLCO(%)[8.35(2.15, 16.45) vs. 6.23(2.12, 14.54), P=0.143] didn't show a significant difference between the two groups. Conclusion:Whether in the short or the middle postoperative period, segmentectomy can preserve postoperative respiratory function than lobectomy.

Objective:In this article, we analyzed and discussed the clinical characteristics and S region gene sequencing of hepatitis B virus in HBsAg anti-HBs coexistent patients.Methods:Data of 5 serologic markers of hepatitis B and quantitative result, liver function and HBV DNA load of HBsAg positive patients were collected, and their basic clinical information were recorded. According to the positive and negative result of Anti-HBs, the clinical and virological characteristics of these two groups were analyzed. At the same time, among 17 320 patients with HBsAg positive HBV infection, 994 cases were tested by gene sequencing. The S region amino acid mutation, site mutation detection rate and genotype of 994 HBV infected patients with gene sequencing were statistically analyzed.Results:The positive rate of HBsAg and Anti-HBs was 4.36% (756/17 320). HBV-related cirrhosis in HBsAg+ /Anti-HBs+ group (19.71%) was significantly higher than that in HBsAg+ /Anti-HBs-group (15.94%), while chronic hepatitis B (62.04%) was significantly lower than that in HBsAg+ /Anti-HBs-group (67.06%). At the same time, the positive rates of HBsAg-quantification (QN) and ALT in HBsAg+ /Anti-HBs+ group were significantly lower than those in HBsAg+ /Anti-HBs-group, the positive rate of HBeAg was significantly higher than that in HBsAg+ /Anti-HBs-group, and the HBV DNA was higher than that in HBsAg+ /Anti-HBs-group, but the difference was no statistical significance. Gene sequencing was performed in 994 HBV patients. Genotype C (81.79%) had the highest proportion, genotype B (17.40%) was the second, and genotype D (0.80%) was the least in two groups. In genotype C HBV infected patients, the detection rate of sP120Q/T/A/S mutant in HBsAg+ /Anti-HBs+ group was significantly higher than that in HBsAg+ /Anti-HBs-group. Meanwhile, regardless of genotype B or C or overall comparison, the detection rate of sG145A/E/K/R mutant of HBV infected patients in HBsAg+ /Anti-HBs+ group was significantly higher than that in HBsAg+ /Anti-HBs-group, these differences were all statistically significant.Conclusions:The hepatitis B patients with coexistence of HBsAg and Anti-HBs were more likely to develop cirrhosis, and the hepatitis B patients with HBV gene sequencing results were mainly type C2. The drug resistance variation of S-region sP120Q/T/A/S and sG145A/E/K/R mutants of patients with HBV infection is an important reason for the coexistence of HBsAg and Anti-HBS.

Objective:To explore the imaging features and clinical effect of accordion maneuver in promoting the bone healing at the docking site after tibial transport under ultrasonic monitoring.Methods:Retrospective analysis was conducted on the clinical data of 16 patients with tibial bone transport who were admitted to the Department of Orthopedics, the second Hospital of Shanxi Medical University from May 2018 to October 2019. All the patients were treated with accordion maneuver to promote bone healing at the docking site under ultrasound monitoring. There were 14 males and 2 females, aged (45.3±14.3) years (range: 6 to 61 years). Before tibial bone transport, the length of the tibial defect of 16 patients was (6.0±2.6) cm (range: 2.0 to 12.1 cm). The operation steps of accordion maneuver were as follows: pressurization for 2 weeks, suspension for 12 days, distraction for 2 weeks, retraction for 2 weeks, and then stop the operation to consolidate the bone mineralization. During accordion treatment, ultrasound was used to monitor the size of hematoma, Adler grade of blood flow signal and the changes of new callus in and around the docking site. X-ray was performed to monitor bone healing at the docking site. Pearson correlation coefficient was used to analyze the correlation between the size of hematoma, the resistance index of blood flow signal and the bone healing time of the docking site. Paley healing criterion was used to evaluate the bone healing and functional recovery of the patients.Results:During accordion maneuver, ultrasound examination showed that the Adler grade of blood flow signals around the docking site increased gradually before retraction and then decreased gradually, but the degree of callus mineralization continued to increase gradually. After 2 weeks of pressure on the docking site, hematoma was observed in 14 patients by ultrasound examination. X-ray showed that all docking sites had bony healing, with the healing time of (30.8±4.9) weeks (range: 23 to 40 weeks).The size of the hematoma was negatively correlated with the healing time of the docking site ( r=-0.819, P<0.01). No hematoma was found in 2 patients, and after continuous observation for 20 weeks, there was still no obvious callus connection at the docking site. After bone cortical removal, ultrasound examination showed hematoma formed at the docking site. Accordion maneuver was continued, and the docking site healed at 30 and 32 weeks after surgery, respectively. There was a negative linear correlation between hematoma size at 2 weeks of compression and the blood flow resistance index at 2 weeks of retraction in 16 patients ( r=-0.801, P<0.01). The patients were followed-up for (14.5±3.2) months (range: 10.6 to 20.2 months). At the last follow-up, 12 patients were evaluated as excellent and 4 were evaluated as good by Paley healing criteria. Conclusion:The distraction and compression stress applied in accordion maneuver can promote bone healing at the docking site, and ultrasound can monitor early signs of bone healing at the docking site to help determine the tendency of bone healing.

Objective:To explore the imaging features and clinical effect of accordion maneuver in promoting the bone healing at the docking site after tibial transport under ultrasonic monitoring.Methods:Retrospective analysis was conducted on the clinical data of 16 patients with tibial bone transport who were admitted to the Department of Orthopedics, the second Hospital of Shanxi Medical University from May 2018 to October 2019. All the patients were treated with accordion maneuver to promote bone healing at the docking site under ultrasound monitoring. There were 14 males and 2 females, aged (45.3±14.3) years (range: 6 to 61 years). Before tibial bone transport, the length of the tibial defect of 16 patients was (6.0±2.6) cm (range: 2.0 to 12.1 cm). The operation steps of accordion maneuver were as follows: pressurization for 2 weeks, suspension for 12 days, distraction for 2 weeks, retraction for 2 weeks, and then stop the operation to consolidate the bone mineralization. During accordion treatment, ultrasound was used to monitor the size of hematoma, Adler grade of blood flow signal and the changes of new callus in and around the docking site. X-ray was performed to monitor bone healing at the docking site. Pearson correlation coefficient was used to analyze the correlation between the size of hematoma, the resistance index of blood flow signal and the bone healing time of the docking site. Paley healing criterion was used to evaluate the bone healing and functional recovery of the patients.Results:During accordion maneuver, ultrasound examination showed that the Adler grade of blood flow signals around the docking site increased gradually before retraction and then decreased gradually, but the degree of callus mineralization continued to increase gradually. After 2 weeks of pressure on the docking site, hematoma was observed in 14 patients by ultrasound examination. X-ray showed that all docking sites had bony healing, with the healing time of (30.8±4.9) weeks (range: 23 to 40 weeks).The size of the hematoma was negatively correlated with the healing time of the docking site ( r=-0.819, P<0.01). No hematoma was found in 2 patients, and after continuous observation for 20 weeks, there was still no obvious callus connection at the docking site. After bone cortical removal, ultrasound examination showed hematoma formed at the docking site. Accordion maneuver was continued, and the docking site healed at 30 and 32 weeks after surgery, respectively. There was a negative linear correlation between hematoma size at 2 weeks of compression and the blood flow resistance index at 2 weeks of retraction in 16 patients ( r=-0.801, P<0.01). The patients were followed-up for (14.5±3.2) months (range: 10.6 to 20.2 months). At the last follow-up, 12 patients were evaluated as excellent and 4 were evaluated as good by Paley healing criteria. Conclusion:The distraction and compression stress applied in accordion maneuver can promote bone healing at the docking site, and ultrasound can monitor early signs of bone healing at the docking site to help determine the tendency of bone healing.

Objective: To evaluate the efficacy and safety of three-dimensional electroanatomical mapping system for catheter ablation of paroxysmal supraventricular tachycardiain (PSVT) children. Methods: Clinical data from 187 children with paroxysmal supraventricular tachycardia undergoing radiofrequency catheter ablation in our department between January 2012 and April 2016 were analyzed. Among the patients, 91 cases were treated with traditional two-dimensional X-ray radiofrequency ablation, 96 cases were treated with radiofrequency ablation guided by three-dimensional electroanatomical mapping system. Postoperative electrocardiogram and echocardiography follow-up was performed at 1, 3, 6, 12, and 24 months. The success rate, recurrence rate, complication rate, operation time and amount of X-ray exposure were compared between the two groups. Kaplan-Meier survival curve was used to analyze the PSVT-free survival rate of the patients between the 2 groups. Results: The mean follow-up time was (739±92) days. The success rate (95.8%(92/96) vs. 94.5%(86/91), P=0.912), recurrence rate (5.4%(5/92) vs. 4.7%(4/86), P=0.807), complication rate (4.2%(4/96) vs. 5.5%(5/91), P=0.379), operation time ((73±31)min vs. (79±36)min, P=0.124) were similar between the two groups. However, X-ray exposure time ((8.1±2.9)min vs. (21.3±8.4)min, P=0.026), amount of X-ray ((23±11)mGy vs. (58±23)mGy, P=0.013) were significantly lower in the three-dimensional electroanatomical mapping system group than in the traditional two-dimensional X-ray radio frequency ablation group. PSVT-free survival rate was similar between the two groups (χ²=0.060, P=0.807) . Conclusion Three-dimensional electroanatomical mapping system is safe and effective for radiofrequency ablation of paroxysmal supraventricular tachycardia in children, and can significantly reduce the amount of radiation as compared to the traditional two-dimensional X-ray radiofrequency ablation.

Objective This study explored the expression of polyclonal protein SUZ12 in patients with intrahepatic cholangiocarcinoma(ICC),and its role in predicting the survival and treatment of ICC patients.Methods The expression of SUZ12 and p16INK4a was detected by immunohistochemical assay in 207 liver tissue samples including ICC patients,BilIN-1,-2,-3 and non-tumor-like cholangiocarcinoma.The expression of these proteins was assessed to be related to the pathological characteristics of the ICC patients receiving chemotherapy and the outcome of survival as well as the subsequent chemotherapy response.Results The expression level of SUZ12 was gradually increased from non-neoplastic bile duct tissue to BilIN-1,-2,-3 and ICC.The expression of p16INK4a protein was expressed in non-neoplastic-like cholangiocarcinoma,but it decreased gradually in BilIN-1,-2,-3 and ICC tissues.SUZ12 expression was associated with undifferentiated ICC,lymph node metastasis and advanced cancer.Kaplan-Meier curve analysis showed that ICC patients with high expression of SUZ12 had a significant reduction in overall survival and disease-free survival in comparison with ICC patients with the low expression of SUZ12.SUZ12 expression was significantly associated with overall survival of patients receiving adjuvant gemcitabine-based chemotherapy(AGC).Conclusion SUZ12 expression is able to predict the overall survival and disease-free survival of ICC patients with adjuvant gemcitabine-based chemotherapy.

Objective To investigate the effect of thyroxine replacement therapy with residual subclinical hypothyroidism on the success rate of catheter ablation in elderly patients with atrial fibrillation(AF).Methods Among the consecutive patients with AF who underwent a first AF ablation in our center between 2009 and 2012,we identified 56 patients(41 paroxysmal AF,15 persistent AF)with subclinical clinical hypothyroidism after receiving thyroid hormone replacement therapy as study group.The control group consisted of 56 patients with euthyroidism and no history of thyroid dysfunction.All patients underwent catheter ablation.Results At the end of follow up,37.5%(21/56)patients were AF free after the first procedure in the study group,in comparison to 64.3%(36/56)in control group(χ2=8.655,P=0.003).Last procedure was performed in 27 patients of study group and in 15 patients of control group.After the last performed ablation,62.5%(35/56)study group patients and 80.4%(45/56)controls group patients had no recurrence(χ2=4.653,P=0.031).The major complications rate did not differ between two groups(P=0.642).Conclusions Thyroid hormone replacement therapy with residual subclinical hypothyroidism reduces catheter ablation success rate in elderly patients with atrial fibrillation.

Objective:To observe the therapeutic effect ofcapsaicin at different concentrations on chronic knee arthritis pain model in mice.Methods:Choosing 50 healthy adult male Kunming mice builded chronic knee arthritis pain model by injecting 0.01 mL CFA (Complete Freund's Adjuvant,CFA) into left joint cavity.The model would be succeed in building after 3 weeks.The successful model mice were divided into five groups randomly (n=10):The first experimental group (saline group),the second experimental group (capsaicin excipient group),the third experimental group (0.5 ％ of capsaicin),the fourth experimental group (3 ％ of capsaicin) and the fifth experimental group (8 ％ of capsaicin).All of the mice would be observed the time of withdrawal latencies from the thermal heated surface after administration of one,four and seven hours,and thermal withdrawal time within 60 days after the injection.Results:①The physiological saline group compared with excipient group,the thermal withdrawal time had no statistically significant difference (P＞0.05)after administration of one,four and seven hours,and thermal withdrawal time within 60 days.②The acute pain duration of the third group would disappear after capsaicin injection 7 hours,four hours for the fourth group,and one hour for the fifth group.③The duration of analgesia of the third group,lasted for 18.9± 1.1 days;The analgesia time of the fourth group lasted for 33.7± 1.0 days;The analgesia time of the fifth group lasted for 58.2± 1.2 days.Conclusions:Capsaicin has analgesic effects on chronic knee pain model in mice induced by CFA,and the days of analgesia increases with the concentration of capsaicin.

Eighty patients(American Society of AnesthesiologistsⅠ-Ⅱ)scheduled for elective unilateral inguinal hernia surgery with spinal anesthesia between January and June 2016 were randomized into two groups with 40 in each group.Patients were intravenously injected with normal saline (5 ml) in control group or hydromorphone 5 μg/kg (diluted to 5 ml) in intervention group after spinal anesthesia.Tympanic temperature and the incidence of shrivering were measured before and after spinal anesthesia at predetermined intervals.Side effects during surgery and the first 48 h after surgery were recorded.Rescue drug tramadol 0.5 mg/kg was given intravenously to patients with grade ≥2 shivering for more than 5 min duration.Tympanic temperature decreased significantly compared to the baseline from 20 min in control group and from 10 min in intervention group after spinal blocking(P<0.05),while there were no significant differences in tympanic temperature at the same time points between two groups(P>0.05).The incidence of shivering was significantly lower in intervention group [17.5%(7/40)] than that in control group [47.5%(19/40),χ2=8.205,P=0.004].The incidence of nausea and vomiting was 5.0%(2/40)in intervention group and 0.0% (0/40) in control group (χ2=2.051,P=0.494).The incidence of sedation was not significantly different between control group [0.0%(0/40)] and intervention group[10.0%(4/10),χ2=4.211,P=0.116].The use of rescue tramadol was more frequently in control group [32.5%(13/40)] than that in intervention group [7.5%(3/40),χ2=7.812,P=0.01].The results indicate that intravenous hydromorphone can significantly attenuate the incidence of shivering after spinal anesthesia for inguinal herniorrhaphy repair surgery with minimum side effects.