Objective To assess the effectiveness and safety of CYP2C19 genotype test to guide clopi-dogrel individualized therapy in treating ischemic stroke.Methods The databases of PubMed,Embase,Co-chrane Library,Web of Science,Clinical Trail,CBM,CNKI,Wanfang database and VIP database were compre-hensively retrieved.The retrieval time was from the database establishment to August 2023.The randomized controlled trials (RCT) of CYP2C19 gene guiding clopidogrel anti-platelet therapy in the patients with ische-mic stroke were collected.The meta analysis was conducted by adopting the RevMan 5.3 software.Results A total of eleven RCT and 8729 patients with ischemic stroke were included.The meta analysis results showed that there was statistically significant difference in the recurrence rate risk of stroke (OR=0.48,95％CI:0.28-0.83,P=0.008),cardiovascular events incidence rate (OR=0.52,95％CI:0.33-0.82,P=0.005) and incidence rate of all-cause death (OR=0.57,95％CI:0.31-1.06,P=0.070) between clopidogrel individ-ualized anti-platelet treatment based on CYP2C19 genotype detection guidance and conventional anti-platelet treatment.In terms of safety,there were no statistically significant difference in the incidence rate of bleeding between the two groups (OR=1.16,95％CI:0.53-2.50,P=0.710).Conclusion CYP2C19 genotype detec-tion guided clopidogrel personalized anti-platelet therapy could significantly reduce the recurrent rate of stroke and incidence rate of vascular events compared with conventional anti-platelet treatment based on the existing evidence,moreover without increasing the risk of bleeding event occurrence

OBJECTIVE: To compare the performance of Clear Cell Likelihood Score (ccLS) v1.0 and v2.0 in diagnosing clear cell renal cell carcinoma (ccRCC) from small renal masses (SRM). METHODS: We retrospectively analyzed the clinical data and MR images of patients with pathologically confirmed solid SRM from the First Medical Center of the Chinese PLA General Hospital between January 1, 2018, and December 31, 2021, and from Beijing Friendship Hospital of Capital Medical University and Peking University First Hospital between January 1, 2019 and May 17, 2021. Six abdominal radiologists were trained for use of the ccLS algorithm and scored independently using ccLS v1.0 and ccLS v2.0. Random- effects logistic regression modeling was used to generate plot receiver operating characteristic curves (ROC) to evaluate the diagnostic performance of ccLS v1.0 and ccLS v2.0 for ccRCC, and the area under curve (AUC) of these two scoring systems were compared using the DeLong's test. Weighted Kappa test was used to evaluate the interobserver agreement of the ccLS score, and differences in the weighted Kappa coefficients was compared using the Gwet consistency coefficient. RESULTS: In total, 691 patients (491 males, 200 females; mean age, 54 ± 12 years) with 700 renal masses were included in this study. The pooled accuracy, sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV) of ccLS v1.0 for diagnosing ccRCC were 77.1%, 76.8%, 77.7%, 90.2%, and 55.7%, as compared with 80.9%, 79.3%, 85.1%, 93.4%, 60.6% with ccLS v2.0, respectively. The AUC of ccLS v2.0 was significantly higher than that of ccLS v1.0 for diagnosis of ccRCC (0.897 vs 0.859; P < 0.01). The interobserver agreement did not differ significantly between ccLS v1.0 and ccLS v2.0 (0.56 vs 0.60; P > 0.05). CONCLUSION ccLS v2.0 has better performance for diagnosing ccRCC than ccLS v1.0 and can be considered for use to assist radiologists with their routine diagnostic tasks.
Female ; Male ; Humans ; Adult ; Middle Aged ; Aged ; Carcinoma, Renal Cell/diagnosis* ; Retrospective Studies ; Kidney ; Carcinoma ; Kidney Neoplasms/diagnosis*

Programmed cell death protein-1 (PD-1)/programmed cell death-ligand 1 (PD-L1) inhibitors and PD-1 inhibitors plus chemotherapy combination regimens have been widely used in the first-line treatment of advanced non-small cell lung cancer(NSCLC), but patients with low PD-L1 expression have limited objective response and survival benefits. Existing treatment regimens are still difficult to fully meet the clinical needs of patients in the real world. Therefore, researchers are still exploring novel superactive treatment options to further improve the efficacy and survival prognosis of different sub-groups in NSCLC. Dual immunotherapy [such as the combination of PD-1 and cytotoxic T lymphocyte associated antigen-4 (CTLA-4) inhibitors] has shown considerable long-term survival benefits in a variety of tumors and has also shown broad clinical prospects in NSCLC. In addition to exploring different emerging combination options, how to accurately identify the optimal-benefit groups through predictive biomarkers and how to effectively manage the safety of combination immunotherapy through multidisciplinary collaboration are also the focus of dual immunotherapy. This article reviews the mechanism of action, research progress, predictive biomarkers and future exploration directions of dual immunotherapy.
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B7-H1 Antigen/metabolism* ; Carcinoma, Non-Small-Cell Lung/drug therapy* ; Humans ; Immunotherapy ; Lung Neoplasms/drug therapy* ; Prognosis

Objective To explore the feasibility of robot-assisted laparoscopic inferior vena cava (IVC) thrombectomy in treating renal tumor with Mayo level Ⅲ-Ⅳ inferior vena cava thrombus.Methods From November 2014 to January 2017,5 cases of renal tumor with Mayo level Ⅲ-Ⅳ inferior vena cava tumor thrombus were treated with robot-assisted surgery.There were 4 males and 1 female with the median age of 59 years (range 54-71 years).Four cases had the renal tumor on the right side and one on the left side.The mean tumor size was 6.8 cm (range 5-9 cm) with 3 cases of T3b and 2 cases of T3c.There were 4 cases of level Ⅲ and 1 case of level Ⅳ inferior vena cava thrombus with the median length of 9 cm (range 7-11 cm).The surgical procedure for Mayo level Ⅲ inferior vena cava thrombus included mobilization of both left and right robes of liver,subsequently controlling the suprahepatic infradiaphramatic IVC and first porta hepatis simultaneously.The surgical procedure for Mayo level Ⅳ inferior vena cava thrombus included cardiopulmonary bypass by multi-disciplinary cooperation among urologists,hepatobiliary and cardiovascular surgeons.The procedures included live mobilization,control of the superior vena cava and first porta hepatis and remove thrombus in the atrium and IVC respectively.Results All operations were completed successfully.The median operative time was 440 min (320-630 min).The blood recovery device was used and the intraoperative estimated blood loss was 2 500 ml (500-6 000 ml) and all cases required intraoperative blood transfusion.The median time of intraoperative occlusion of IVC was 35 min (25-50 min).All patients were transferred to the intensive care unit for median of 4 days (2-8 days) after surgery.The median time to remove the postoperative drainage tube was 9 days (7-12 days).Postoperative pathological diagnosis revealed 5 cases of clear cell carcinoma.Postoperative renal dysfunction occurred in 3 patients and liver dysfunction occurred in 2 patients who improved after medical therapy.During median 19.6 months (12-48 months) of follow-up,1 patient died and 1 patient progressed.Conclusions Despite the high risk of surgery,robot-assisted laparoscopic IVC thrombectomy for renal tumor with Mayo level Ⅲ-Ⅳ thrombus is feasible for experienced surgeons in selected patients.However,the oncological outcomes need further investigation.

Objective To investigate the influence of epidural analgesia on labor duration under the new partogram recommendations using quantile regression.Methods In this study,we recruited 300 nulliparous women at full term who were hospitalized in Department of Obstetrics and Gynecology,Tongji Medical College,Huazhong University of Science and Technology from May to September,2018.The participants who were willing to receive epidural analgesia during labor were assigned to the epidural group (n=150),and those who were not to the control group (n=150).Labor duration and delivery outcomes were analyzed by Student's t test,Mann-Whitney U test,Chi-square test and Fisher's exact test.Quantile regression models were also used to investigate the effect of epidural analgesia on labor duration.Results The median durations of first-and second-stage labor in the epidural group were 600(400-840) and 66(45-98) min,respectively,which were significantly longer than those of the control group [420(320-610) and 52(33-87) min] (Z=-4.273,P＜0.001;Z=-3.210,P=0.001).Quantile regression analysis showed that,for the first stage of labor,epidural analgesia was associated with labor prolongation,and had significant effects on all the percentiles (all P＜0.05).The regression coefficients increased (95.630-285.000) correspondingly as the percentiles of the labor duration (from 10th to 90th percentiles) increased.For the second stage of labor,epidural analgesia showed a significant impact on prolongation only between the 25th and 75th percentiles (coefficients:10.000～18.143;all P＜0.05).Although the epidural group had a significant higher episiotomy rate [46.8％(65/139) vs 33.3％(48/144),x2=5.318,P=0.021],more times of urine catheterization during labor [1(0-1) vs 0(0-1),Z=-0.974,P=0.001]and higher rate of oxytocin administration during labor [48.7％(73/150) vs 30.0％(45/150),x2=10.952,P=0.001],when compared with the control group,there was no significant difference in cesarean section rate,assisted vaginal delivery rate and neonatal outcomes between the two groups (all P＞0.05).Conclusions Epidural analgesia may associated with the prolongation of the first and second stage of labor,especially with the first stage of labor,but has no adverse effects on maternal and neonatal outcomes.

Objective: To explore the value of CT texture analysis (CTTA) in differentiating the pathological grade of urothelial carcinoma of the bladder (UCB). Methods: A total of 53 lesions from 43 patients with bladder cancer confirmed by postoperative pathology were retrospectively analyzed, including 27 cases of high-grade urothelial carcinoma (HGUC) and 26 cases of low-grade urothelial carcinoma (LGUC). All the patients took pelvic CT and enhanced scanning in the same CT scanner with same scanning parameters. Lesions on both plain and enhanced CT images were delineated on software by two radiologists to extract the corresponding volumes of interest (VOI) and then 92 parameters based on feature classes were generated. The average values of two radiologists were obtained. The difference parameters between HGUC group and LGUC group were screened by nonparametric test, and the receiver operating characteristic (ROC) was drawn. The corresponding optimal thresholds were determined and diagnostic effect was assessed. Results: Nine difference texture parameters between HGUC group and LGUC group were selected, including 5 parameters on unenhanced images, namely, skewness, root mean squared, cluster shade, zone percentage and large area high gray level emphasis. There were 4 parameters on enhanced images, namely, skewness, kurtosis, cluster shade and zone percentage. The largest area under curve of 0.840±0.058 (95% CI 0.726-0.955) was obtained from skewness generated by VOI of unenhanced images. The cut-off value of skewness was 0.186 5, which permitted the diagnosis of HGUC with sensitivity of 92.59%, specificity of 73.08%, positive predictive value of 78.13%, negative predictive value of 90.48% and accuracy of 83.02%. Conclusion CTTA can effectively distinguish between LGUC and HGUC. Skewness from unenhanced CT images had the optimal diagnostic performance.

Objective To investigate MRI features of metanephric adenoma(MA). Methods The retrospective analysis was performed on 6 adult patients that were scanned by regular, DWI and dynamic-enhancement MRI two weeks before surgery and diagnosed with MA pathologically after surgery. MRI features of lesions were observed. The signal intensities of lesions and contralateral normal renal cortex and medulla were respectively measured in plain scan, cortex, parenchyma and delayed phase. The enhancement magnitudes were calculated and the ADC values of lesions were measured. The differences of the signal intensity and enhancement magnitude were assessed by paired-sample t test among renal cotex, medulla and lesions. Results All lesions in MA were single and solid masses. Four cases occurred in the right kidney and two cases in the left kidney. The maximum diameters of the lesions ranged from 21 to 79 mm and the mean value was(41 ± 20)mm. Five cases were round or oval, while one case was irregular. The signal intensity in five cases was slightly lower in T2WI than the renal parenchyma, while one case was slightly higher than the renal parenchyma. The hyperintentsity of DWI and hypointensity of ADC were seen in all cases. The mean ADC value was(0.759 ± 0.211) × 10-3mm2/s. Hemorrhage were seen in two cases. Necrosis was present in one case and the capsules were seen in two cases. No scar, fat and swollen lymph nodes was seen in all cases . There was no statistical significance of the signal intensity between lesions measure in the plain scan and normal renal parenchyma(P>0.05). After adminstrating contrast materials, all lesions shown persistently mild to moderate enhancement . The siganl intensities of lesions measured in three phases after enhancement were signifcantly lower than those of the renal cortex(P<0.05). No significant differences of the signal intensity measured in cortex and medulla phase between lesions and normal renal medulla was present(P>0.05). But the signal intensities of leisons in delayed phases were significantly lower than thoseof renal medulla(P<0.05). Except from the difference of enhanced magnitude in cortex phase between lesions and normal medulla, significant differences were present between leisons and normal renal parenchyma(P<0.05). Conclusion MRI manifestations of MA show certain distinction, including, dominantly solid lesions, relatively lower signal intensity of lesions than that of renal cortex, slowly persistent enhancement, high signal on DWI and low signal on ADC.

Objective To investigate the correlation between 24 h urinary protein quantitation and pregnancy outcome in patients with pre-eclampsia.Methods A total of 332 pre-eclampsia patients were selected in Tongji Hospital from January 2014 to December 2016.The patients were divided into microalbuminuria group(24 h urinary protein quantification ＜ 0.3 g,n =46),mild proteinuria group (0.3 g ≤ 24 h urinary protein quantification ＜ 2.0 g,n =98),moderate proteinuria group (2.0 g ≤ 24 h urinary protein quantification ＜ 5.0 g,n =71) and severe proteinuria group(24 h urinary protein quantification ≥ 5.0 g,n =117) according to the results of 24 h urinary protein quantification.The pregnancy outcomes were compared between the four groups.Results The 24 h urinary protein quantification and the serum creatinine,urea nitrogen,uric acid levels in the mild proteinuria group,moderate proteinuria group and severe proteinuria group were significantly higher than those in the microalbuminuria group (P ＜ 0.05);and gestational week was significantly shorter than that in the microalbuminuria group (P ＜ 0.05).The 24 h urinary protein quantification and serum urea nitrogen,uric acid levels in the moderate proteinuria group were significantly higher than those in the mild proteinuria group (P ＜ 0.05);and gestational week was significantly shorter than that in the mild proteinuria group (P ＜ 0.05);but there was no significant difference in serum creatinine level between the two groups (P ＞ 0.05).The 24 h urinary protein quantification,serum creatinine,urea nitrogen and uric acid levels in the severe proteinuria group were significantly higher than those in the mild proteinuria group (P ＜ 0.05);and the gestational week was significantly lower than that in the mild albuminuria group (P ＜ 0.05).The 24 h urinary protein quantification in the severe proteinuria group was significantly higher than that in the moderate proteinuria group (P ＜ 0.05),but there was no significant difference in the gestational week and serum creatinine,urea nitrogen,uric acid levels between the two groups (P ＞0.05).There was no significant difference in the rates of cesarean section and spontaneous labor between the four groups (P ＞0.05).The rate of induced labor in the moderate proteinuria group and the severe proteinuria group was significantly higher than that in the mild albuminuria group and the microalbuminuria group (P ＜ 0.05).There was no significant difference in the rate of induced labor between the mild proteinuria group and the microalbuminuria group (P ＞ 0.05).There was no significant difference in the rate of induced labor between the severe proteinuria group and the moderate proteinuria group (P ＞ 0.05).The incidence of complications in microalbuminuria group,mild proteinuria group,moderate proteinuria group and severe proteinuria group was 30.43％ (14/46),47.96％ (47/98),74.65％ (53/71) and 74.36％ (87/117) respectively;the incidence of complications in the moderate proteinuria group and the severe proteinuria group was significantly higher than that in the microalbuminuria group and the mild albuminuria group (P ＜ 0.05),but there was no significant difference in the incidence of complications between microalbuminuria group and mild albuminuria group (P ＞ 0.05),there was no significant difference in the incidence of complications between the moderate proteinuria group and the severe proteinuria group (P ＞0.05).The incidences of premature birth and neonatal asphyxia in the mild proteinuria group were significantly higher than that in the microalbuminuria group (P ＜ 0.05),and the body mass of the neonates was significantly lower than that in the microalbuminuria group (P ＜0.05),but there was no significant difference in the perinatal mortality rate and the incidences of fetal growth restriction(FGR) and poor neonatal resuscitation between the two groups (P ＞ 0.05).The incidences of FGR,premature birth,neonatal asphyxia,poor neonatal resuscitation and the perinatal mortality in the moderate proteinuria group and severe proteinuria group were significantly higher than those in the microalbuminuria group (P ＜ 0.05);and neonatal body mass was significantly lower than that in the mieroalbuminuria group (P ＜ 0.05).The incidences of FGR,premature birth and poor neonatal resuscitation and perinatal mortality in the moderate proteinuria group were significantly higher than those in the mild proteinuria group (P ＜ 0.05);and the neonatal body mass was significantly lower than that in the mild proteinuria group (P ＜ 0.05);but there was no significant difference in the neonatal asphyxia incidence between the two groups (P ＞ 0.05).The incidences of FGR,premature birth,neonatal asphyxia,poor neonatal resuscitation and perinatal mortality in the severe proteinuria group were significantly higher than those in the mild proteinuria group (P ＜ 0.05);and the body mass of the newborns was significantly lower than that in the mild albuminuria group (P ＜ 0.05).The incidence of neonatal asphyxia in the severe proteinuria group was significantly higher than that in the moderate proteinuria group (P ＜ 0.05),but there was no significant difference in the incidences of FGR,premature birth,poor neonatal resuscitation,perinatal mortality and neonatal body mass between the two groups (P ＞ 0.05).Conclusions The of 24 h urinary protein quantitation is closely related to the pregnancy outcome in patients with pre-eclampsia,the 24 h urinary protein quantification should be regularly detected in the patients with pre-eclampsia.When the urinary protein quantitation is more than 2.0 g,the incidences of maternal complications and poor prognosis of the perinatal infants is significantly higher,but the boundary value of the 24 h urinary protein quantitation for the diagnosis of severe pre-eclampsia still needs further large sample study.

Objective To investigate the diagnosis and treatment of anorectal malignant melanoma,in order to regulate surgical methods and explore multi-modality treatment.Methods Clinical pathological features,diagnosis and treatment procedures of 38 patients with anorectal melanoma were reviewed,and their correlation with prognosis were analyzed.Results In 38 patients,10 of them were male and 28 were female,with the mean age of 58.7 years old (ranged 28-75 years old).28 patients underwent abdominoperineal resection,10 patients underwent wide local excision.The 1-,3-,and 5-year disease-free survival rates were 64.9 ％,18.5 ％ and 5.7 ％,respectively.The 1-,3-,and 5-year overall survival rates were 85.8 ％,24.1％ and 6.4 ％,respectively.Tumor thickness (≥ 1.51 rm) and tumor diameter (≥3 cm) were associated with lymph metastases (x2 =13.093,4.449,P =0.011,0.020),tumor thickness was also associated with distant metastases (x2 =11.965,P =0.018).According to the Kaplan-Meier method,comprehensive treatment after surgery had significant effects on disease-free survival (x2 =7.441,P =0.006).Tumor thickness,lymph metastases,and clinical staging had significant effects on overall survival (x2 =16.741,16.474,16.775,P =0.002,0.000,0.000).Cox proportional hazards model indicated that comprehensive treatment after surgery was the independent prognostic risk factors of disease-free survival (95 ％ CI 1.420-17.621,P =0.012).Tumor thickness and lymph metastases were the independent prognostic risk factors of overall survival (95 ％ CI 0.250-0.949,1.033-2.573,P =0.035,0.036).Conclusion Early detection,reasonable surgical procedure,generalized systemic focus on immunotherapy treatment are the key to improve quality of life and prolong the survival time of anorectal malignant melanoma patients.

Objective To assess the prognostic values of the immunohistochemical expression of vascular endothelial growth factor (VEGF) and vascular endothelial growth factor receptor-2 (VEGFR-2) in a cohort of patients with operable advanced laryngeal cancer who have been treated with induction chemotherapy. Methods VEGF and VEGFR-2 expression in the Forty-nine patients was quantified by an enzyme immunosorbent assay in a retrospective series.Results The moderate to high VEGF expression in 34 patients were found and low expression in 15 patients. VEGFR-2 expression was moderate to high in 31 patients and was low expression in 18. The probability of a complete response to induction chemotherapy was significantly higher in patients with none to low VEGF expression.Conclusion VEGF expression seems to be a significant predictor of complete response to induction chemotherapy.