Objective:To explore the clinical efficacy of three different surgical timings of modified cervical cerclage in twin pregnant women with cervical insufficiency.Methods:The clinical data of 73 twin pregnant women who underwent modified cervical cerclage and had pregnancy outcomes in Qilu Hospital of Shandong University (Qingdao) from April 2014 to July 2023 were retrospectively analyzed. According to the different timings of surgery, they were divided into prophylactic cerclage group, ultrasound-indicated cerclage group (further divided into cervical length (CL)≤15 mm and 15 mm10 mg/L was a risk factor for preterm birth before 34 weeks of gestation ( OR=5.230, 95% CI: 1.616-16.929; P=0.006). Conclusions:In twin pregnant women with cervical insufficiency, prophylactic cerclage has the same surgical effect as ultrasound-indicated cerclage, while both prophylactic cerclage and ultrasound-indicated cerclage could significantly improve maternal and fetal outcomes compared with emergency cerclage. Twin pregnancies with CL≤15 mm might benefit from cervical cerclage. Postoperative CRP>10 mg/L is an independent risk factor for preterm birth before 34 weeks of gestation.

Objective To investigate the distribution and antimicrobial resistance profiles of clinically isolated Haemophilus influenzae and Moraxella catarrhalis in hospitals across China from 2015 to 2021,and provide evidence for rational use of antimicrobial agents.Methods Data of H.influenzae and M.catarrhalis strains isolated from 2015 to 2021 in CHINET program were collected for analysis,and antimicrobial susceptibility testing was performed by disc diffusion method or automated systems according to the uniform protocol of CHINET.The results were interpreted according to the CLSI breakpoints in 2022.Beta-lactamases was detected by using nitrocefin disk.Results From 2015 to 2021,a total of 43 642 strains of Haemophilus species were isolated,accounting for 2.91％of the total clinical isolates and 4.07％of Gram-negative bacteria in CHINET program.Among the 40 437 strains of H.influenzae,66.89％were isolated from children and 33.11％were isolated from adults.More than 90％of the H.influenzae strains were isolated from respiratory tract specimens.The prevalence of β-lactamase was 53.79％in H.influenzae strains.The H.influenzae strains isolated from children showed higher resistance rate than the strains isolated from adults.Overall,779 strains of H.influenzae did not produce β-lactamase but were resistant to ampicillin(BLNAR).Beta-lactamase-producing strains showed significantly higher resistance rates to these antimicrobial agents than the β-lactamase-nonproducing strains.Of the 16 191 M.catarrhalis strains,80.06％were isolated from children and 19.94％isolated from adults.M.catarrhalis strains were mostly susceptible to both amoxicillin-clavulanic acid and cefuroxime,evidenced by resistance rate lower than 2.0％.Conclusions The emergence of antibiotic-resistant H.influenzae due to β-lactamase production poses a challenge for clinical anti-infective treatment.Therefore,it is very important to implement antibiotic resistance surveillance for H.influenzae and guide rational antibiotic use.All local clinical microbiology laboratories should actively improve antibiotic susceptibility testing and strengthen antibiotic resistance surveillance for H.influenzae.

Aim To analyze the correlation between serum retinol-binding protein 4(RBP4),low density lipo-protein cholesterol to albumin ratio(LDLC/Alb),monocyte to high density lipoprotein ratio(MHR)and plaque stability in carotid atherosclerosis population and their predictive value for acute ischemic stroke(AIS).Methods A total of 197 patients with asymptomatic carotid atherosclerosis admitted to our hospital from September 2021 to January 2023 were selected for a prospective cohort study,and they were categorized into occurred group and non-occurred group according to whether AIS occurred within 12 months.Baseline information at time of visit,results of the cervical ultrasonography and serum RBP4,LDLC/Alb,MHR levels were compared between the two groups.Spearman/Pearson and receiver operating characteristic(ROC)curve were used to analyze the corr-elation of RBP4,LDLC/Alb and MHR with carotid atherosclerosis and plaque stability,and the value of predicting AIS in carotid atherosclerosis population.Hosmer-Lemeshow goodness of fit test was used to evaluate the calibration ability of serum RBP4,LDLC/Alb and MHR to jointly predict AIS in carotid atherosclerosis population.Results The carotid intima-media thickness(IMT)was higher in occurred group than that in non-occurred group.There were more soft plaques and mixed plaques in occurred group than in non-occurred group(P＜0.05).Serum levels of RBP4,LDLC/Alb and MHR were higher in occurred group than those in non-occurred group(P＜0.05).The correlation analysis showed that the levels of serum RBP4,LDLC/Alb and MHR were positively correla-ted with IMT(r=0.803,0.740,0.710)and plaque properties(r=0.736,0.685,0.703)(P＜0.001).ROC curve a-nalysis showed that the AUC of serum RBP4,LDLC/Alb and MHR in predicting AIS in carotid atherosclerosis population was 0.796,0.821 and 0.828,respectively,and the AUC of MHR was the largest;the AUC of the combination of serum RBP4,LDLC/Alb and MHR was 0.936,which was higher than that of MHR(Z=2.978,P＜0.05),the predictive sensi-tivity and specificity were 88.24％and 87.40％.Hosmer-Lemeshow goodness of fit test showed that there was no signifi-cant difference between serum RBP4,LDLC/Alb and MHR in predicting AIS and the actual observation value in carotid atherosclerosis population(P＞0.05),and the prediction model had good calibration ability.Conclusion Serum RBP4,LDLC/Alb,and MHR are positively correlated with carotid atherosclerosis and plaque stability,and can predict the occurrence of AIS.Combined detection of the three can be used as a method for early identification of potential high-risk populations for AIS,providing a new,quantifiable guidance scheme for the prevention and treatment of AIS in carotid ath-erosclerotic population.

Objective To investigate the distribution and antimicrobial resistance profiles of clinically isolated Haemophilus influenzae and Moraxella catarrhalis in hospitals across China from 2015 to 2021,and provide evidence for rational use of antimicrobial agents.Methods Data of H.influenzae and M.catarrhalis strains isolated from 2015 to 2021 in CHINET program were collected for analysis,and antimicrobial susceptibility testing was performed by disc diffusion method or automated systems according to the uniform protocol of CHINET.The results were interpreted according to the CLSI breakpoints in 2022.Beta-lactamases was detected by using nitrocefin disk.Results From 2015 to 2021,a total of 43 642 strains of Haemophilus species were isolated,accounting for 2.91％of the total clinical isolates and 4.07％of Gram-negative bacteria in CHINET program.Among the 40 437 strains of H.influenzae,66.89％were isolated from children and 33.11％were isolated from adults.More than 90％of the H.influenzae strains were isolated from respiratory tract specimens.The prevalence of β-lactamase was 53.79％in H.influenzae strains.The H.influenzae strains isolated from children showed higher resistance rate than the strains isolated from adults.Overall,779 strains of H.influenzae did not produce β-lactamase but were resistant to ampicillin(BLNAR).Beta-lactamase-producing strains showed significantly higher resistance rates to these antimicrobial agents than the β-lactamase-nonproducing strains.Of the 16 191 M.catarrhalis strains,80.06％were isolated from children and 19.94％isolated from adults.M.catarrhalis strains were mostly susceptible to both amoxicillin-clavulanic acid and cefuroxime,evidenced by resistance rate lower than 2.0％.Conclusions The emergence of antibiotic-resistant H.influenzae due to β-lactamase production poses a challenge for clinical anti-infective treatment.Therefore,it is very important to implement antibiotic resistance surveillance for H.influenzae and guide rational antibiotic use.All local clinical microbiology laboratories should actively improve antibiotic susceptibility testing and strengthen antibiotic resistance surveillance for H.influenzae.

Aim To analyze the correlation between serum retinol-binding protein 4(RBP4),low density lipo-protein cholesterol to albumin ratio(LDLC/Alb),monocyte to high density lipoprotein ratio(MHR)and plaque stability in carotid atherosclerosis population and their predictive value for acute ischemic stroke(AIS).Methods A total of 197 patients with asymptomatic carotid atherosclerosis admitted to our hospital from September 2021 to January 2023 were selected for a prospective cohort study,and they were categorized into occurred group and non-occurred group according to whether AIS occurred within 12 months.Baseline information at time of visit,results of the cervical ultrasonography and serum RBP4,LDLC/Alb,MHR levels were compared between the two groups.Spearman/Pearson and receiver operating characteristic(ROC)curve were used to analyze the corr-elation of RBP4,LDLC/Alb and MHR with carotid atherosclerosis and plaque stability,and the value of predicting AIS in carotid atherosclerosis population.Hosmer-Lemeshow goodness of fit test was used to evaluate the calibration ability of serum RBP4,LDLC/Alb and MHR to jointly predict AIS in carotid atherosclerosis population.Results The carotid intima-media thickness(IMT)was higher in occurred group than that in non-occurred group.There were more soft plaques and mixed plaques in occurred group than in non-occurred group(P＜0.05).Serum levels of RBP4,LDLC/Alb and MHR were higher in occurred group than those in non-occurred group(P＜0.05).The correlation analysis showed that the levels of serum RBP4,LDLC/Alb and MHR were positively correla-ted with IMT(r=0.803,0.740,0.710)and plaque properties(r=0.736,0.685,0.703)(P＜0.001).ROC curve a-nalysis showed that the AUC of serum RBP4,LDLC/Alb and MHR in predicting AIS in carotid atherosclerosis population was 0.796,0.821 and 0.828,respectively,and the AUC of MHR was the largest;the AUC of the combination of serum RBP4,LDLC/Alb and MHR was 0.936,which was higher than that of MHR(Z=2.978,P＜0.05),the predictive sensi-tivity and specificity were 88.24％and 87.40％.Hosmer-Lemeshow goodness of fit test showed that there was no signifi-cant difference between serum RBP4,LDLC/Alb and MHR in predicting AIS and the actual observation value in carotid atherosclerosis population(P＞0.05),and the prediction model had good calibration ability.Conclusion Serum RBP4,LDLC/Alb,and MHR are positively correlated with carotid atherosclerosis and plaque stability,and can predict the occurrence of AIS.Combined detection of the three can be used as a method for early identification of potential high-risk populations for AIS,providing a new,quantifiable guidance scheme for the prevention and treatment of AIS in carotid ath-erosclerotic population.

Objective:To explore the clinical efficacy of three different surgical timings of modified cervical cerclage in twin pregnant women with cervical insufficiency.Methods:The clinical data of 73 twin pregnant women who underwent modified cervical cerclage and had pregnancy outcomes in Qilu Hospital of Shandong University (Qingdao) from April 2014 to July 2023 were retrospectively analyzed. According to the different timings of surgery, they were divided into prophylactic cerclage group, ultrasound-indicated cerclage group (further divided into cervical length (CL)≤15 mm and 15 mm10 mg/L was a risk factor for preterm birth before 34 weeks of gestation ( OR=5.230, 95% CI: 1.616-16.929; P=0.006). Conclusions:In twin pregnant women with cervical insufficiency, prophylactic cerclage has the same surgical effect as ultrasound-indicated cerclage, while both prophylactic cerclage and ultrasound-indicated cerclage could significantly improve maternal and fetal outcomes compared with emergency cerclage. Twin pregnancies with CL≤15 mm might benefit from cervical cerclage. Postoperative CRP>10 mg/L is an independent risk factor for preterm birth before 34 weeks of gestation.

OBJECTIVE: Surgical wounds that can’t complete primary healing three weeks after surgery are called postoperative refractory wounds. Postoperative refractory wounds would bring great physical and life burdens to the patients and seriously affect their quality of life. To investigate the effect of platelet fibrin plasma (PFP) on postoperative refractory wound healing.APPROACH: The composition of PFP was analyzed using blood routine and blood biochemicals. Clinical data were collected that met the inclusion criteria after treatment with PFP, and the efficacy of PFP was evaluated by wound healing rate and days to healing. Next, growth factor content in PFP, PRP, and PPP was analyzed using ELISA, and PFP-treated cells were applied to investigate the effect of PFP on fibroblast and endothelial cell function. RESULTS: PFP component analysis revealed no statistical difference between platelet concentration in PFP and physiological concentration. Clinical statistics showed that PFP treatment was effective in the postoperative refractory wound (four-week wound healing rate [ 90%), significantly better than continuous wound dressing. Meanwhile, our result also proved that PFP treatment significantly enhanced vascularization by upregulated the expression level of CD31 and improved granulation tissue thickness. Activated PFP, PRP, and PPP could continuously release growth factors in vitro and the amount of growth factors released by PRP and PFP was significantly higher than PPP. In vitro studies demonstrated that active PFP could improve cell proliferation, migration, adhesion, and angiogenesis in fibroblasts and endothelial cells.INNOVATION: Physiologically concentrated platelet plasma promoted wound healing and improved related cellular functions. The modified PFP (responsible for accelerating wound healing and enhancing the migration and proliferation of fibroblasts and endothelial cells) was prepared and analyzed for its clinical effectiveness in postoperative refractory wounds. CONCLUSION Physiologically concentrated platelet plasma promoted wound healing and improved related cellular functions. The preparation of PFP could significantly reduce the amount of prepared blood, with a good application value for postoperative wounds. PFP can be considered a treatment option, especially for postoperative refractory wounds.

OBJECTIVE: Surgical wounds that can’t complete primary healing three weeks after surgery are called postoperative refractory wounds. Postoperative refractory wounds would bring great physical and life burdens to the patients and seriously affect their quality of life. To investigate the effect of platelet fibrin plasma (PFP) on postoperative refractory wound healing.APPROACH: The composition of PFP was analyzed using blood routine and blood biochemicals. Clinical data were collected that met the inclusion criteria after treatment with PFP, and the efficacy of PFP was evaluated by wound healing rate and days to healing. Next, growth factor content in PFP, PRP, and PPP was analyzed using ELISA, and PFP-treated cells were applied to investigate the effect of PFP on fibroblast and endothelial cell function. RESULTS: PFP component analysis revealed no statistical difference between platelet concentration in PFP and physiological concentration. Clinical statistics showed that PFP treatment was effective in the postoperative refractory wound (four-week wound healing rate [ 90%), significantly better than continuous wound dressing. Meanwhile, our result also proved that PFP treatment significantly enhanced vascularization by upregulated the expression level of CD31 and improved granulation tissue thickness. Activated PFP, PRP, and PPP could continuously release growth factors in vitro and the amount of growth factors released by PRP and PFP was significantly higher than PPP. In vitro studies demonstrated that active PFP could improve cell proliferation, migration, adhesion, and angiogenesis in fibroblasts and endothelial cells.INNOVATION: Physiologically concentrated platelet plasma promoted wound healing and improved related cellular functions. The modified PFP (responsible for accelerating wound healing and enhancing the migration and proliferation of fibroblasts and endothelial cells) was prepared and analyzed for its clinical effectiveness in postoperative refractory wounds. CONCLUSION Physiologically concentrated platelet plasma promoted wound healing and improved related cellular functions. The preparation of PFP could significantly reduce the amount of prepared blood, with a good application value for postoperative wounds. PFP can be considered a treatment option, especially for postoperative refractory wounds.

OBJECTIVE: Surgical wounds that can’t complete primary healing three weeks after surgery are called postoperative refractory wounds. Postoperative refractory wounds would bring great physical and life burdens to the patients and seriously affect their quality of life. To investigate the effect of platelet fibrin plasma (PFP) on postoperative refractory wound healing.APPROACH: The composition of PFP was analyzed using blood routine and blood biochemicals. Clinical data were collected that met the inclusion criteria after treatment with PFP, and the efficacy of PFP was evaluated by wound healing rate and days to healing. Next, growth factor content in PFP, PRP, and PPP was analyzed using ELISA, and PFP-treated cells were applied to investigate the effect of PFP on fibroblast and endothelial cell function. RESULTS: PFP component analysis revealed no statistical difference between platelet concentration in PFP and physiological concentration. Clinical statistics showed that PFP treatment was effective in the postoperative refractory wound (four-week wound healing rate [ 90%), significantly better than continuous wound dressing. Meanwhile, our result also proved that PFP treatment significantly enhanced vascularization by upregulated the expression level of CD31 and improved granulation tissue thickness. Activated PFP, PRP, and PPP could continuously release growth factors in vitro and the amount of growth factors released by PRP and PFP was significantly higher than PPP. In vitro studies demonstrated that active PFP could improve cell proliferation, migration, adhesion, and angiogenesis in fibroblasts and endothelial cells.INNOVATION: Physiologically concentrated platelet plasma promoted wound healing and improved related cellular functions. The modified PFP (responsible for accelerating wound healing and enhancing the migration and proliferation of fibroblasts and endothelial cells) was prepared and analyzed for its clinical effectiveness in postoperative refractory wounds. CONCLUSION Physiologically concentrated platelet plasma promoted wound healing and improved related cellular functions. The preparation of PFP could significantly reduce the amount of prepared blood, with a good application value for postoperative wounds. PFP can be considered a treatment option, especially for postoperative refractory wounds.

Objective To retrospectively analyze the clinical features and prognosis of patients with massive pulmonary hemoptysis.Methods Patients with massive hemoptysis,who received bronchial artery embolization at authors'hospital between 2016 and 2018,were collected for this study.According to the gender,the patients were divided into female group(n=68)and male group(n=195).The primary disease,age at onset,length of hospital stay,bleeding site,embolization agent used,recurrence rate of hemoptysis,and mortality were calculated.SPSS.27.0 software was used to analyze the correlation between the age of onset,length of hospital stay,gender,recurrence of hemoptysis and death.RStudio4.2.2 software was used to make a normogram of patient's recurrent hemoptysis and death.Results The primary diseases in the top three were bacterial infection,bronchiectasis and old pulmonary tuberculosis,the incidences of them in the female group were 50％,22％and 15％respectively and in the male group were 43％,21％and 21％respectively.The mean age at onset in the female group was(54.6±16.8)years and in the male group was(60.1±14.0)years.The proportions of the bleeding site in the left lung,right lung,or both lungs in the female group were 6％,21％and 73％respectively and in the male group were 17％,21％and 62％respectively.The proportions of the used embolization agent of 350-560 μm PVA particles and 300-500 μm microspheres in the female group were 31％and 24％respectively and in the male group were 50％and 17％respectively.In the patients who had recurrent hemoptysis,the primary diseases in the top three were old pulmonary tuberculosis,pulmonary bacterial infection and bronchiectasis,the incidences of them in the female group were 33％,33％and 33％respectively and in the male group were 44％,34％and 10％respectively.The causes of death were much complex,in which pulmonary infection played an important role.Conclusion In patients with massive pulmonary hemoptysis,there are differences in the primary disease,bleeding site,applicable embolization agent,recurrence rate of hemoptysis,and mortality between females and males,in addition,the age is an independent influencing factor for recurrent hemoptysis and death.(J Intervent Radiol,2024,33:636-641)