BackgroundPostpartum depression can affect the physical and mental health of mothers and the quality of parenting. Most Chinese women perform traditional postpartum practices （commonly known as "doing the month"） after giving birth， while the existing findings are inconsistent and inconclusive regarding the potential of traditional Chinese postpartum practices to alleviate or exacerbate postpartum depression. ObjectiveTo explore the relationship between traditional Chinese postpartum practices and postpartum depression， so as to provide references for reducing the risk of postpartum depression. MethodsA total of 240 consecutive women who gave birth in the obstetrics department of the Mianyang Central Hospital and the Third Hospital of Mianyang from January to May 2024 were selected. Data were collected using Self-designed General Information Questionnaire， Chinese version of the Edinburgh Postnatal Depression Scale （EPDS）， the Social Support Rating Scale （SSRS）， the Patient Health Questionnaire-15 （PHQ-15）， the Adherence to Doing-the-Month Practices questionnaire （ADP）， and the Self-compiled Questionnaire on the Cognition of Doing-the-Month. The absolute value （A value） of the difference between scores of ADP and Cognition of Doing-the-Month Questionnaire was calculated to evaluate the degree of cognitive behavioral conflict of postpartum women. Pearson correlation analysis was performed to examine the correlations of EPDS score with SSRS score， PHQ-15 score， ADP total and dimensional scores， Cognition of Doing-the-Month Questionnaire total and dimensional scores， and A value. Logistic regression analysis was conducted to identify the protective and risk factors for developing postpartum depression. ResultsThe postpartum depression was detected in 22.50% of women. The postpartum women had a EPDS score of （6.21±5.00）， ADP score of （70.05±20.57）， SSRS score of （41.96±6.96）， PHQ-15 score of （4.63±3.77）， and Cognition of Doing-the-Month questionnaire score of （40.30±10.13）. The A value was （0.65±0.58）. Correlation analysis revealed that EPDS score was negatively correlated with the total ADP score and the four dimensional scores of the restrictions on social activities， diet， housework， and personal hygiene （r=-0.228， -0.146， -0.184， -0.275， -0.168， P<0.05 or 0.01）， and positively correlated with the A value （r=0.161， P<0.05）. Logistic regression analysis indicated that restriction on housework dimension in ADP was entered into the model （OR=0.930， 95% CI： 0.885~0.978）. ConclusionThe restriction on housework dimension in traditional Chinese postpartum practices may be a protective factor against postpartum depression.

Objective To investigate the short- and long-term prognoses and the risk factors affecting “textbook outcome” (TO) after laparoscopic pancreaticoduodenectomy (LPD) for pancreatic ductal adenocarcinoma (PDAC). Methods The clinical and follow-up data of patients diagnosed with PDAC and treated with LPD from January 2019 to December 2022 were retrospectively analyzed. The prognosis was compared between TO and non-TO groups, and univariate and multivariate logistic regression analyses were used to identify independent prognostic factors for TO. Results A total of 284 patients were enrolled in this study, including 185 cases in the TO group and 99 cases in the non-TO group. The 1-, 3- and 5-year overall survival (OS) rates of the TO and non-TO groups with PDAC were 87.3% vs. 85.9%, 52.5% vs. 38.4%, and 18.0% vs. 4.5%, respectively (P=0.020); the recurrence-free survival (RFS) rates were 74.1% vs. 65.7%, 27.1% vs. 21.0%, and 10.0% vs. 0%, respectively (P=0.042). Multivariate logistic regression analysis showed that operation time >360 min (OR=0.561, 95%CI: 0.321-0.979, P=0.042), intraoperative blood loss >400 ml (OR=0.392, 95%CI: 0.175-0.879, P=0.023), hard or tough texture of pancreas (OR=2.240, 95%CI: 1.247-4.022, P=0.007), and main pancreatic duct diameter >3 mm (OR=1.931, 95%CI: 1.126-3.312, P=0.017) were independent prognostic factors for TO. Conclusion After the learning curve, more than 60% of patients with PDAC can achieve TO after LPD. The chances of achieving TO are significantly reduced when the operation time >360 min, the intraoperative blood loss >400 ml, the texture of pancreas was soft, and the diameter of the main pancreatic duct >3 mm.

Objective To observe the influence of different acceleration factors(AF)on compressed sensing susceptibility weighted imaging(CS-SWI)for cerebral medullary veins of healthy people,and to screen the best AF.Methods Forty healthy volunteers were prospectively enrolled.Axial brain SWI images were obtained with CS technique under different AF(AF0,CS2,CS4,CS6,CS8 and CS10),and the phase value(PV)and standard deviation(SD)of bilateral septal vein(SV),internal cerebral vein(ICV),thalamus vein(TV),basal vein(BV)and dentate nucleus vein(DNV)were measured.Taken PV and SD of parietal white matter as controls,the signal-to-noise ratio(SNR)and contrast-to-noise ratio(CNR)of venous images were calculated.Then the original images were reconstructed with minimum intensity projection,and the subjective quality scoring of reconstructed images were performed using a 5-point scale.SNR,CNR,PV and quality score were compared among images under different AF,and the best AF,i.e.with the best performances for displaying and quantitatively analyzing cerebral medullary veins in healthy people was obtained.Results Compared with those acquired with AF0,SNR and CNR of all cerebral medullary veins acquired with CS6,CS8 and CS10 were significantly different(all adjusted P＜0.05).Meanwhile,significant differences of PV in bilateral SV and right TV were found among CS6,CS8 and CS10,also in bilateral ICV,left TV and bilateral BV between CS8 and CS10(all adjusted P＜0.05).Conclusion Excessive AF might decrease image quality of CS-SWI for cerebral medullary veins.CS4 was the best AF for displaying and quantitatively analyzing cerebral medullary veins in healthy people.

Objective:To explore the application value of quantitative flow ratio (QFR) in the hemodynamic evaluation of myocardial bridge and to preliminarily evaluate the correlation and related influencing factors between deformation quantitative flow ratio (D-QFR) and QFR.Methods:This is a cross-sectional study. Patients with CAG-confirmed simple myocardial bridge of the middle anterior descending coronary artery from June 2012 to June 2022 at the Air Force Medical Center were retrospectively included in this study. Systolic stenosis of mural coronary arteries (MCA) and myocardial bridge length were measured using quantitative coronary angiography. The patients were divided into mild stenosis group (<50% systolic stenosis) and moderate-to-severe stenosis group (≥50% systolic stenosis) according to the Nobel grading criteria. At different time periods (systolic and diastolic), the QFR values were measured at 3 locations (1 to 2 cm before the MCA entrance, the middle segment of the MCA, and 1 to 2 cm after the MCA exit), denoted as QFRa, QFRb, and QFRc, respectively, and the D-QFR values, incorporating vessel deformation information, were recorded. The MCA distal QFR≤0.8 in either stage was defined as an abnormal QFR value. QFR values were compared between the two groups at different locations and within each group. Factors associated with abnormal QFR values were analysed using multifactorial logistic regression. Spearman rank correlation analysis was used to examine the correlation between D-QFR values and systolic and diastolic QFR values.Multiple linear regression was used to analyse the factors associated with D-QFR.Results:A total of 83 patients were enrolled, including 58 males, aged (57.1±13.1) years. There were 48 cases in the mild stenosis group and 35 cases in the moderate-to-severe stenosis group, and the differences in systolic and diastolic QFRb and QFRc values between the two groups were statistically significant (all P<0.05). Within-group comparisons showed the values of QFRb and QFRc in the systolic phase were lower than those in the diastolic phase; QFRb and QFRc were both lower than QFRa during the same period (all P<0.05). Multifactorial logistic regression analysis showed that MCA systolic stenosis ( OR=1.225, 95% CI 1.093-1.372, P<0.001) was an influential factor for abnormal QFR. D-QFR values were positively correlated with both systolic and diastolic QFR values (correlation coefficients were 0.849 and 0.675, respectively, both P<0.01). Multiple linear regression analysis showed that D-QFR values were negatively correlated with age ( β=-0.208, P=0.029), systolic stenosis ( β=-0.500, P<0.001), and myocardial bridge length ( β=-0.211, P=0.036). Conclusions:The QFR values in middle and distal of myocardial bridge decrease. The systolic stenosis rate of myocardial bridge is an important factor affecting QFR value. D-QFR is positively correlated with both systolic and diastolic QFR values. Age, myocardial bridge systolic stenosis rate and length are factors influencing the D-QFR values.

Objective:To quantitatively evaluate the left ventricular circumferential and longitudinal strain after percutaneous coronary intervention(PCI)in elderly patients with acute myocardial infarction(AMI)using speckle-tracking imaging(STI)on echocardiography.Methods:A prospective case-control study was conducted on 47 elderly patients diagnosed with ST-elevation AMI and undergoing percutaneous coronary interference(PCI)in our hospital from August 2017 to June 2020 as PCI-study group.The 35 normal subjects matched for age and sex were as a normal-control group.The longitudinal peak systolic strain(LPSS)and circumferential peak systolic strain(CPSS)were measured using STI at one week and three months after PCI in the two groups.Results:The values of LPSS and CPSS were apical segment > middle segment > basal segment, which was the similar between LPSS and CPSS.Compared with normal-control group, AMI-PCI group showed that CPSS and LPSS in each segment were significantly reduced at 1 week and 3 months after operation.Compared with the control group, all the CPSS and LPSS values were significantly decreased in AMI group at one week after PCI(-12.3±2.7)% vs.(-22.5±1.7)%( t=19.62, P<0.01); (-12.9±3.2)% vs.(-23.1±2.6)%( t=15.43, P<0.01). Both LPSS and CPSS values were improved at a certain extent at three months after PCI compared with AMI group at one week after PCI.The complete CPSS and LPSS values were significantly increased in AMI group at three months after PCI compared with one week after PCI(-16.8±2.6)% vs.(-12.3±2.7)%, ( t=8.23, P<0.01); (-17.0±3.3)% vs.(-12.9±3.2)%( t=6.11, P<0.01). But, there were still significant differences compared with the NC group(-16.8±2.6)% vs.(-22.5±1.7)%( t=11.29, P<0.01); (-17.0±3.3)% vs.(-23.1±2.6)%( t=9.04, P<0.01). Conclusions:The longitudinal and circumferential strain of left ventricle were severely damaged in elderly patients with AMI.The speckle-tracking imaging technique can be used to quantitatively evaluate the left ventricular strain and its improved situation after PCI in elderly AMI patients.

Objective To analyze the image features and prognosis of primary central airway salivary gland-type tumor (SGT).Methods The clinical and imaging data of 25 cases with SGT confirmed by histopathology were retrospectively analyzed in our hospital from October 2009 to November 2017.Follow up of patients for survival was performed.Among 25 cases of SGT,there were 14 cases of adenoid cystic carcinoma (ACC),ten cases of mucoepidermoid carcinoma (MEC) and one case of mucoepidermoid carcinoma (EMC).All cases had non-enhanced CT scans (among which 20 cases underwent CT scan with contrast).Post-processing were performed to evaluate the location,range,density,degree of enhancement of the lesions and involvement of hilar or mediastinal lymph nodes.Eight cases underwent PET/CT imaging and one underwent MR imaging,respectively.Independent sample t test was used to compare difference in ages between ACC group and MEC group.Nonparametric test was performed to compare difference in tumor's diameter between ACC group and MEC group.Comparison of genders,history of smoking,tumor-node-metastasis (TNM) stage and CT features between ACC group and MEC group were tested using Fisher's exact tests.Survival was calculated using the Kaplan-Meier method,and the survival curves were compared by the log-rank test.Results Compared to MEC,patients with ACC were older.There were significant difference between the two groups (t=3.154,P＜0.05).ACC tended to involved trachea or main bronchi (13/14) while MEC were mostly located at lobar or segment bronchi (6/10).The shape of ACC tumors were mainly lobulated or presented as circumferential wall thickening (13/14),while MECs were smoothly oval (7/10).On contrast-enhanced CT scans,ACC mainly showed mild or moderate enhancement (9/10),While most of MEC had shown avid enhancement (8/10).CT findings suggestive of airway obstructive disease were seen more with MEC (9/10) than ACC (4/14).There were significant differences of the above CT features between ACC and MEC group (P＜0.05).A case of EMC in an 43 years old female presented rounded nodule in tracheal;The SUVmax in 6 of 8 cases of PET/CT exceeded 2.2;Overall survival (OS) was 87.5％ in all cases.No significant difference was found between ACC and MEC groups regarding OS (x2=0,P=1.000).Ages,surgical and nonsurgical patients and TNM stage were found to be related to OS (x2=13.799,13.799,13.171,respectively,P＜0.05).Conclusions Primary central airway salivary gland-type tumors are commonly occurred in patients at a low age,with weak invasive feature and good prognosis.The predominant site and CT characteristics between ACC and MEC were significantly different.

Objective To investigate the clinical efficacy of modified open-door laminoplasty with preservation ofthe unilateral paraspinal muscle ligament complex in treating ossification of posterior longitudinal ligament (OPLL) of the cervical spine.Methods From June 2015 to July 2017,thirty-two patients with OPLL of the cervical spine who underwent modified open-door laminoplasty with preservation of the unilateral paraspinal muscle ligament complex were retrospectively analyzed(modified group).There were 20 males and 12 females with the average age of 61.72±8.41 years (range 46-75 years).The decompression segment range included three cases of C2-C6,seven cases of C2-C7,eight cases of C3-C6,and fourteen cases of C3-C7.Moreover,twenty-three patients with OPLL of the cervical spine who underwent traditional unilateral open-door laminoplasty at the same time were included as controls (control group).The demographics,operation duration,and blood loss volume was recorded.The visual analogue scale (VAS),Japanese Orthopaedic Association scores (JOA),improvement rate of JOA score and neck disability index (NDI) were recorded and analyzed at preoperation,three months after operation,six months after operation and at the final follow-up.The cervical curvature,cervical curvature index (CCI),range of motion (ROM) were measured and statistically analyzed on the lateral X-ray film of the cervical spine.The union rate of the lamina hinge and that of spinous process-lamina was measured on the cross section of the CT scan.Bilateral cervical posterior muscle volume was recorded and analyzed at cross-section plane on MRI.Axial symptoms,C5 nerve root palsy and other complications were also recorded.Results All the patients were followed-up for 6 to 18 months (mean,13.04±4.67 months in control group,11.81±4.93 months in modified group).At the final follow-up,the JOA,VAS and NDI scores improved from preoperatively 6.09±0.79 to 13.43± 1.53,4.22±1.04 to 2.83±1.15 and 25.48％±3.20％ to 8.83％±5.41％ in the control group,versus 6.28±1.05 to 13.88±1.48,4.09± 1.00 to 1.16±0.57 and 25.06％±3.24％ to 5.66％±2.46％ in the modified group.The postoperative JOA score and recovery rate of the two groups was not significantly different,whereas the VAS and NDI scores were significantly reduced in the modified group compared to the control group.The maximum cervical flexion angle,cervical curvature,ROM and CCI of control group were 6.26°± 3.31°,30.17°±4.56°,11.39°±1.95° and 9.74％±4.05％ at the final follow-up,which were reduced significantly compared to pre-operation.The maximum cervical flexion angle,cervical curvature,ROM and CCI of modified group were 10.06°± 1.93°,35.03°± 5.01°,17.03°±2.86° and 14.22％±5.00％,and there were no significant differences compared to pre-operation.There were significant differences among two groups.At the final follow-up,the posterior muscle volume of the two groups at open side was decreased compared to preoperation,but there was no significant difference between the two groups.At the last follow-up,the posterior muscle volume at hinge side was not changed compared to preoperation in modified open-door laminoplasty group,while the volume of the posterior muscle at hinge side in the traditional control group decreased compared to preoperation.The difference was statistically significant.A total of eight patients with axial symptom were present after operation.There were two patients (6％,2/ 32) in the modified group and six patients (26％,6/23) in the control group.The difference of axial symptoms incidence was statistically significant between the two groups.Conclusion Modified open-door laminoplasty with preservation of the unilateral paraspinal muscle ligament complex is an effective technique in treating OPLL of the cervical spine.The technique not only guaranteed to have good recovery of neurological function and to maintain cervical curvature and range of motion,but also contributed to decrease the occurrence of postoperative axial symptoms.

Objective To analyze the genetic characteristics of measles virus in Sichuan province in 2015.Methods Measles virus was isolated from throat swab specimens collected from suspected measles cases.Nucleotide sequences coding for C terminus of nucleoprotein were amplified by RT-PCR and sequenced for phylogenetic analysis.Results 398 measles virus isolates were obtained from 971 throat swab specimens.Phylogenetic analysis showed that 397 belonged to H1 genotype,the sequences homologies were 96.2％-98.0％ compared with H1 genotype reference strain;and all those isolates separated into 2 clusters in phylogenetic tree with the average nucleotide divergence of 2.0％.1 isolate belonged to A genotype,and shared 98.0％ nucleotide homology compared with A genotype reference strain.Conclusions H1 genotype virus remained predominant circulating in Sichuan Province.There was no much genetic variation in N gene.But a minor nucleotide divergence existed between different clusters,leading to 2 transmission chains.

Aim To investigate the effect of U50488H(a selective κ-opioid receptor agonist)and isoproterenol(ISO,a β-adrenergic receptor agonist)on ventricular arrhythmias and Cx43 during myocardial ischemia and reperfusion in rats.Methods 60 rats were randomly divided into five groups,ie,normal control group,I/R group,ISO+I/R group,U50488H+ISO+I/R group,Nor-BNI+U50488H+ISO+I/R group.The incidence of ventricular arrhythmias and arrhythmia score were determined. The expression of Cx43mRNA was tested by RT-PCR.The expression of Cx43 protein in myocardial cell was tested by an immunohistochemical approach with a quantitative imaging system.Results ① Compared with the I/R group,arrhythmia score was increased with administration of ISO(P<0.05).U50488H intravenously injected before ISO significantly decreased the arrhythmia score(P<0.05).② Compared with the normal control group,the expression of Cx43 mRNA was decreased in the I/R group(P<0.05).With administration of ISO,the amount of Cx43 mRNA was not significantly increased.③ Compared with normal control group,total and phosphorylated Cx43 proteins were significantly decreased in the I/R group(P<0.05),and the phosphorylated Cx43 was also decreased with administration of ISO.Compared with ISO+I/R group,phosphorylated Cx43 was increased with administration of U50488H (P<0.05).Conclusion κ-opioid receptor agonist U50488 H antagonizes the arrhythmias through the regulation of Cx43 during myocardial ischemia and reperfusion via inhibiting β-adrenergic receptor pathway.

Objective To explore the role of caspase-3 activation and DNA fragmentation in later period of neonatal rat hypoxic-ischemic brain damage(HIBD). Methods DNA fragmentation,caspase-3 mRNA and caspase-3 protein were measured in 2 wks、3 wks and 4wks after setting HIBD animal model in newborn wistar rats by FCM, RT-PCR and Immunohistochemistry. Results (1) Apoptosis lasted 4ks after HIBD. This suggested a long lasting role of apoptosis in neonatal HIBD by TNNEL and EM.(2)Caspase-3 mRNA expression was estimated by semi-quantitative RT-PCR. It was higher in HIBD group(0.771?0.074) than in control group(0.620?0.038, P0.05. Average Avalue of Caspase-3 protein in HIBD group(0.374 ?0.038) at 3 wks was significantly higher than that in control group(0.356?0.020,P