1.Clinical application of enhanced recovery after surgery combined with intestinal fluid reflux in enterostomy in newborn
Wenyue LIU ; Xiaoxia WU ; Hui ZHANG ; Xue SUN ; Baohong ZHAO ; Yuanyuan JIN ; Hongxia REN
Chinese Journal of Neonatology 2024;39(3):145-149
Objective:To study the clinical value of enhanced recovery after surgery(ERAS) strategy combined with early intestinal fluid reinfusion among neonates receiving jejunostomy due to intestinal obstruction.Methods:From December 2018 to December 2022, neonates with intestinal obstruction receiving jejunostomy in the Department of Neonatal Surgery of our hospital were prospectively enrolled. They were randomly assigned into ERAS group and traditional treatment (TT) group after surgery. The ERAS group was treated with ERAS strategy plus early intestinal fluid reinfusion. The TT group was treated with conventional gastrointestinal decompression, analgesia as needed and enteric fluid reinfusion according to the amount of defecation. The postoperative parenteral nutrition (PN) duration (T pn), central venous catheter (CVC) duration (T cvc), daily weight gain, duration of postoperative hospital stay (T hos), complications and readmission rate within 30 days were compared between the two groups. Results:A total of 22 cases were included in the ERAS group and 20 cases were in the TT group. T pn [(22.6±9.4) d vs. (30.7±11.3) d], T cvc [(5.9±0.8) d vs. (9.9±2.1) d] and T hos [(26.8±9.8) d vs. (33.8±11.5) d] in the ERAS group were significantly shorter than the TT group ( P<0.05). No significant difference existed in daily weight gain between the two groups ( P>0.05). The incidence of postoperative gastrointestinal mucosal bleeding in the ERAS group was significantly lower than the TT group (13.6% vs. 45.0%)( P<0.05). No significant differences existed in the following items between the two groups: feeding intolerance, PN-associated cholestasis, CVC-related bloodstream infection, intestinal fluid reinfusion-related complications, premature closure of fistula and readmission rate within 30 days (all P>0.05). Conclusions:The application of ERAS strategy plus early intestinal fluid reinfusion in neonates with enterostomy is safe and feasible, which can reduce the postoperative durations of PN, CVC and hospital stay and accelerate the recovery.
2.OCT and IVUS evaluating stent apposition and endothelialization after FD implantation in aneurysm animal models
Ji MA ; Shuhai LONG ; Jie YANG ; Zhen LI ; Haiqiang SANG ; Yi TANG ; Yuncai RAN ; Yong ZHANG ; Baohong WEN ; Shanshan XIE ; Ke CHEN ; Enjie LIU ; Xinwei HAN ; Tengfei LI
Chinese Journal of Neuromedicine 2024;23(3):256-262
Objective:To investigate the application value of optical coherence tomography (OCT) and intravascular ultrasound (IVUS) in evaluating flow diverter (FD) apposition and endothelialization in aneurysm animal models, and analyze the effect of incomplete stent apposition (ISA) on aneurysm lumen healing and stent endothelialization.Methods:Lateral common carotid artery aneurysm models in swines were established by surgical method and then FD was implanted. Immediately after surgery, OCT and IVUS were used to evaluate the locations and degrees of ISA, and difference between these 2 methods in evaluating FD apposition was compared. DSA was performed at 12 weeks after surgery to evaluate the aneurysm occlusion (Kamran grading) and stent patency. OCT and IVUS were used again to observe the stent endothelial situation; by comparing with histopathologic results, effect of ISA on aneurysm healing and stent endothelialization was analyzed.Results:Lateral common carotid artery aneurysm models in 6 swines were established, and 6 Tubridge FDs were successfully implanted. Compared with IVUS (3 stents, 4 locus), OCT could detect more ISA (6 stents, 14 locus); and the vascular diameter change area (7 locus), aneurysm neck area (4 locus) and the head and tail of FD (3 locus) were the main sites of FD malapposition; average distance between stent wire and vessel wall was (560.14±101.48) μm. At 12 weeks after surgery, DSA showed that 1 patient had a little residual contrast agent at the aneurysm neck (Kamran grading 3), and the remaining 5 had complete aneurysm occlusion (Kamran grading 4). One FD had moderate lumen stenosis, and the other 5 FDs had lumen patency. OCT indicated mostly disappeared acute ISA; ISA proportion decreased to 21.4 % (3/14), including 2 in the aneurysm neck and 1 in the partial stent. Histopathological results showed bare stent woven silk, without obvious endothelial coverage; in one FD with luminal stenosis, intimal hyperplasia was mainly composed of vascular smooth muscle cells.Conclusion:In carotid artery aneurysm model with FD implantation, OCT can detect more ISA than IVUS; most acute ISA have good outcome at 12 th week of follow-up, while severe ISA can cause delayed FD endothelialization and delayed aneurysm occlusion.
3.Real-World Study on the Clinical Efficacy of Different Medication Regimens of Wangbi Tablet (尪痹片) in the Treatment of Knee Osteoarthritis
Kuayue ZHANG ; Chao LI ; Zhuoyun WU ; Yawei DONG ; Zelu ZHENG ; Yuzhi LIU ; Jun ZHOU ; Jiaming LIN ; Yuefeng CHEN ; Baohong MI ; Weiheng CHEN
Journal of Traditional Chinese Medicine 2024;65(22):2316-2325
ObjectiveTo investigate the differences in clinical efficacy of different medication regimens of Wangbi Tablets (尪痹片) for knee osteoarthritis (KOA) in a real-world setting, providing a basis for rational clinical use of Wangbi Tablets. MethodsA prospective registry study was conducted, involving 2,999 KOA patients registered in 30 hospitals nationwide from January 26th, 2019, to December 17th, 2021. Based on the use of Wangbi Tablets during the observation period, patients were divided into a monotherapy group (1,507 cases) and a combination therapy group (1,492 cases), and the combination group can be further divided into Wangbi Tablets plus Chinese medicine (CM), Wangbi Tablets plus western medicine (WM), and Wangbi Tablets plus Chinese and western medicine (CM+WM) subgroups. The baseline data of patients in the monotherapy group and the combination group were compared, including age, gender, body weight, medication time, clinical stage, K-L grade, and others. Efficacy indicators included the Visual Analog Scale (VAS) score, Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) score, and EuroQol five-dimensional (EQ-5D) health index, which were evaluated before and after 4-, 8- and 12-week treatment, and the difference before and after treatment was calculated after 4, 8 and 12 weeks of treatment. The difference between the baseline and 12 weeks of treatment of all the above indicators was used as the dependent variables, and gender, age, body mass index (BMI), course of disease, K-L grade, and clinical stage were used as independent variables, when multiple linear regression was taken to explore the influencing factors of the efficacy. At the same time, the occurrence of major symptoms (including morning stiffness, joint swelling, soreness of waist and knees, fear of wind, and fear of cold) was counted, and the disappearance of symptoms at each time point was counted after 4, 8, and 12 weeks of treatment. ResultsAt baseline, there were no statistically significant differences in gender and age distribution between the monotherapy and combination therapy groups (P>0.05); the proportion of patients in the acute stage and recovery stage was higher in the monotherapy group than in the combination therapy group, while the proportion in the remission stage was lower (P<0.05); the VAS score was higher in the monotherapy group, and the EQ-5D index was lower (P<0.01), with no statistically significant difference in total WOMAC score between the two groups (P>0.05). Compared to those measured before treatment and at previous timepoint, the VAS score and WOMAC total score significantly decreased in both groups, while EQ-5D value increased (P<0.05). The difference in VAS score between baseline and after 12-week treatment was higher in the monotherapy group than the combination group, while the differences in WOMAC total score and EQ-5D value between baseline and after 4-, 8- and 12-week treatment were higher in the combination group (P<0.05). Multiple linear regression showed that VAS score before treatment had greatest impact on pain improvement (P<0.01), and compared to Wangbi Tablets monotherapy, the combination of Wangbi tablets with WM or CM had larger associations with pain improvement (P<0.05); and Wangbi Tablets had better efficacy when the course of treatment was >28 days (P<0.01). Wangbi Tablets plus WM had a better effect on improving the overall function of the knee joint than Wangbi Tablets alone (P<0.01); and the efficacy of Wangbi Tablets with a course of treatment >28 days was better (P<0.05). The improvement of quality of life of patients in the attack and remission stages was more obvious than that in the recovery stage (P<0.01); Wangbi Tablets plus WM or CM had a better effect on improving quality of life than Wangbi Tablets alone (P<0.05). Before treatment, the proportion of patients with morning stiffness, soreness of waist and knees, fear of wind and chills in the monotherapy group was higher than that in the combination group (P<0.01). The proportion of main symptoms in both groups decreased after 4, 8 and 12 weeks of treatment (P<0.05). After 4 weeks of treatment, the disappearance rate of each main symptom in the combination group was higher than that in the monotherapy group, and after 12 weeks of treatment, the disappearance rate of fear of wind in the monotherapy group was higher than that in the combination group, while the disappearance rate of joint swelling and soreness of waist and knees was lower (P<0.05). ConclusionWangbi Tablets, whether used alone or in combination with other medications, is effective throughout the course of KOA, with greater benefits in improving joint function and quality of life during the acute and remission stages compared to the recovery stage. Combination therapy had a faster onset of effect, but began to converge with monotherapy after 8 weeks. The best efficacy was observed with the combination of Wangbi Tablets with WM, followed by combination with CM.
4.Application value of multimodality MRI in placenta accreta
Chunfeng GUO ; Baohong WEN ; Zijun LIU
Journal of Practical Radiology 2024;40(8):1316-1319
Objective To investigate the application value of multimodality MRI in diagnosing placenta accreta(PA).Methods The imaging data of 62 patients with PA confirmed by clinical intraoperative diagnosis or postoperative pathology were analyzed retrospectively,and the diagnostic accuracy of multimodality MRI for PA was assessed by comparing multimodality MRI manifestations with clinical intraoperative diagnosis or postoperative pathology findings.Results According to the multimodality MRI findings,62 cases of PA were divided into adhesive PA(n=10),implanted PA(n=39),and penetrating PA(n=13).According to the clinical intraoperative diagnosis or postoperative pathology,62 cases of PA were divided into adhesive PA(n=10),implanted PA(n=40),and penetrating PA(n=12).The multimodality MRI manifestations were in good agreement with clinical intraoperative diagnosis or postoperative pathology,with an overall accuracy of 88.7%.Taking clinical intraoperative diagnosis or postoperative pathology as the"gold standard",the accuracy of multimodality MRI in diagnosing adhesive PA,implanted PA,and penetrating PA were 87.10%,88.71%,and 91.94%,respectively;the sensitivity were 70.00%,92.50%,and 91.67%,respectively;and the specificity were 94.00%,85.71%,and 97.87%,with Kappa values of 0.640,0.815 and 0.848,respectively.Conclusion Multimodality MRI has a high accuracy in diagnosing PA and can be used as a routine screening method for PA in clinical practice.
5.Research Progress in Pharmacological Effects of Tripterygium Wilfordii in the Treatment of Breast Cancer and Bone Metastasis
Jing ZHANG ; Jingwei LI ; Zichao CHEN ; Baohong LI ; Yixuan ZOU ; Hui LIU ; Xiuyun ZHANG ; Zhen ZHANG
Traditional Chinese Drug Research & Clinical Pharmacology 2024;35(8):1272-1280
Breast cancer is one of the most prevalent malignant tumors.Bone metastasis is a common complication during the entire course of breast cancer.The vicious cycle of"tumor-bone microenvironment"was easily formed,which led to the occurrence of bone-related events such as bone pain,pathological fractures,and hypercalcemia,etc.Studies have found that active ingredients of Tripterygium wilfordii exhibit the effect of anti-breast cancer and regulation of bone microenvironment,including inhibition of tumor cell proliferation and migration,inhibition of tumor angiogenesis,induction of autophagy in tumor cells,regulation of bone formation in osteoblast cell,inhibition of bone resorption in osteoclast cell,promoting the differentiation of bone marrow mesenchymal stem cells into osteoblasts,and regulation of immune microenvironment,which may be helpful to inhibit breast cancer and bone metastasis.This article systematically reviewed the research progress on pharmacological effects of Tripterygium wilfordii in preventing breast cancer and bone metastasis,analyzed the limitations and application prospects of the current research.
6.Value of morphological characteristics and number of myelogenous lymphoma cells in prognostic evaluation of diffuse large B-cell lymphoma
Shuai LIU ; Yuanyu WEI ; Tingting QIAO ; Yuke LIU ; Qiyao PU ; Xiaoqian WANG ; Xiaogeng YUAN ; Baohong YUE
Chinese Journal of Laboratory Medicine 2023;46(9):925-933
Objective:To summarize the morphological characteristics of diffuse large B-cell lymphoma (DLBCL) cells and investigate the prognosis value of the characteristics and the number of DLBCL cells in bone marrow.Methods:Retrospective study. We collected 79 cases newly diagnosed with DLBCL in the First Affiliated Hospital of Zhengzhou University from January 2020 to August 2022. 30 cases newly diagnosed without bone marrow involvement were selected as controls, whose mean age 58 years (30-82 years). The DLBCL cells were evaluated by the bone marrow smear, biopsy and flow cytometry separetely.The detection rate of DLBCL cells in the bone marrow was compared, to analyse the relationship between the morphological characteristics of DLBCL in the smear, clinical characteristics and flow cytometry parameters, and the prognostic value of DLBCL detected in the bone marrow smear and its quantity was analyzed. Logistic regression was used to analyze the correlation between the detection of DLBCL cells in bone marrow smears and the age, clinical stage, and the number of extraderules involved organs. Multivariate Cox regression was used to analyze the influence of DLBCL cells detection and its number on the prognosis of patients.Results:(1) The positive rates of DLBCL cells in bone marrow biopsy, bone marrow smear and flow cytometry were 4.86%, 5.14% and 9.27% respectively. (2) The morphological characteristics of 79 cases in bone marrow smears were described: more than 2 times the volume of the cell body of the lymphocyte, the shape was different, round or quasi-round or irregular shape, can be seen pseudopodia or protrusion; The volume of cytoplasm was moderate, vacuoles were visible, and a few perinuclear areas were visible. The nucleus were different in shape, round or quasi-round or irregularly shaped, with a majority of them having multiple nuclei and a few of them having delicate and loose chromatin. Most nucleoli were medium or large obviously, with a majority of them having 1-2 nucleoli and a few having more than 3.Sergiosomes and hemophagocytosis were observed in some DLBCL cases, tumor cell aggregation phenomenon was observed in a few DLBCL cases, occasionally pathological mitosis.(3) DLBCL cells in bone marrow smear was positively related to the age of patients, clinical stage and the number of extranodal organs involved(regression coefficient were 2.012, 2.754, 2.028, P<0.05);The volume of DLBCL cells in bone marrow smear was positively correlated with the ratio of CD4 and CD8(regression coefficient is 2.545, P<0.05);The vacuoles in cytoplasm and the pseudopod of tumor were both negative relationship with the quantity of CD38 expressed on DLBCL cells(regression coefficient was -2.465, -3.045, P<0.05); (4) DLBCL cells in bone marrow smear was an independent risk factor for PFS and OS( RR=7.059, P<0.05); RR=5.409, P<0.05). Conclusion:The appearace of DLBCL cells in bone marrow smear with prognosis, and could be used for clinical staging.
7.Health-seeking intention for urinary incontinence among adult women in Gansu Province
Yongli LU ; Baohong MAO ; Huiling WANG ; Weilin PU ; Yanxia WANG ; Jian WANG ; Qing LIU
Journal of Preventive Medicine 2022;34(3):311-315
Objective:
To investigate the health-seeking intention for urinary incontinence among adult women in Gansu Province, so as to provide insights into the management of female urinary incontinence.
Methods :
Women at ages of 20 years and older who lived in 8 communities and 8 villages of Gansu Province for at least one year were recruited using the multi-stage stratified cluster random sampling method. A face-to-face questionnaire survey was conducted from October 2019 to February 2020, and the demographic features, urinary incontinence status and health-seeking intention were collected and descriptively analyzed.
Results:
A total of 3 580 questionnaires were allocated and 3 485 were recovered, with a recovery rate of 97.35%. The respondents had a mean age of ( 51.18±17.13 ) years, with 1 759 respondents ( 50.47% ) that lived in urban areas, and 1 726 ( 49.53% ) that lived in rural areas. There were 1 150 respondents with self-reported urinary incontinence ( 33.00% prevalence ), including 340 cases with stress urinary incontinence ( 29.57% ), 78 cases with urge urinary incontinence ( 6.78% ) and 732 cases with mixed urinary incontinence ( 63.65% ). The overall proportion of health-seeking intention for urinary incontinence was 41.57%, and the proportions of health-seeking intention were 51.76%, 39.74% and 37.02% for stress, urge and mixed urinary incontinence, respectively. The proportion of health-seeking intention for urinary incontinence appeared a tendency towards a decline with the increase in household monthly income per capita and frequency of urinary leakage, and appeared a tendency towards a rise with the increase in educational levels ( P<0.05 ). In addition, a higher proportion of health-seeking intention for urinary incontinence was seen in women living in urban areas than in rural areas (5 3.63% vs. 31.98%, P<0.05 ), and a higher proportion was found in women with mental labors than in those with physical labors ( 60.81% vs. 40.24%, P<0.05 ), while a higher proportion was found in married women than in divorced or widowed women ( 44.33% vs. 23.53%, P<0.05 ).
Conclusions
There is a low proportion of health-seeking intention for urinary incontinence among adult women in Gansu Province. Age, occupation, place of residence, educational level, income, marital status, and frequency of urine leakage may affect the intention to seek medical care for urinary incontinence among adult women.
8.Comparison of drug susceptibility of and drug resistance mutations in fluconazole-resistant Candida albicans strains from superficial and deep infections
Tiantian DING ; Baohong CUI ; Shuhong MI ; Yang ZHANG ; Hailin ZHENG ; Jihai SHI ; Weida LIU
Chinese Journal of Dermatology 2022;55(10):874-878
Objective:To compare the in vitro susceptibility of fluconazole-resistant Candida albicans strains from superficial and deep infections to 8 antifungal drugs, and to compare drug resistance mutations in these strains. Methods:According to the Clinical and Laboratory Standards Institute (CLSI) protocol M27-A4, 26 deep infection-derived and 33 superficial infection-derived drug-resistant Candida albicans strains were tested for in vitro susceptibility to 8 antifungal drugs (fluconazole, voriconazole, itraconazole, posaconazole, amphotericin B, fluorocytosine, terbinafine, and micafungin) alone or in combination. DNA was extracted from all drug-resistant strains, and mutations in 3 drug resistance genes, including ERG3, ERG11 and FUR1, were detected by PCR. Normally distributed measurement data with homogeneous variance were compared between two groups by using two-independent-sample t test, non-normally distributed measurement data with non-homogeneous variance were compared using Mann-Whitney U test, and enumeration data were compared using chi-square test. Results:The minimum inhibitory concentrations (MICs) of fluconazole, itraconazole, voriconazole, posaconazole and fluorocytosine all significantly differed between the superficial infection group and deep infection group (all P < 0.05) , while there was no significant difference in the MIC of amphotericin B or micafungin between the two groups (both P > 0.05) . The MIC of terbinafine was >64 μg/ml in 96.6% of the above strains, so could not be compared between groups. As combination drug susceptibility testing revealed, the combination of terbinafine with azoles (fluconazole, voriconazole, itraconazole or posaconazole) showed synergistic inhibitory effects against 15 Candida albicans strains (7 strains from deep infections, 8 strains from superficial infections) , with fractional inhibitory concentration (FIC) indices being 0.033 to 0.187; no marked synergistic effect was observed in the combinations between fluorocytosine and azoles, between fluorocytosine and amphotericin B, or between amphotericin B and fluconazole, with the FIC indices being 0.56 to 1.125. The missense mutation V351A in the ERG3 gene was identified in all the 33 (100%) superficial infection-derived strains, as well as in 13 (50%) deep infection-derived strains, and the mutation A353T in the ERG3 gene was identified in 4 (15%) deep infection-derived strains; as for the ERG11 gene, missense mutations identified in the superficial infection-derived strains included I437V (32 strains, 97%) , Y132H (23 strains, 70%) , T123I (16 strains, 48%) , K128T (6 strains, 18%) , D116E (5 strains, 15%) , A114S (4 strains, 12%) , E266D (2 strains, 6%) , G448E (2 strains, 6%) , and G465S (2 strains, 6%) , while missense mutations identified in the deep infection-derived strains included I437V (23 strains, 88%) , E266D (13 strains, 50%) , E260G (5 strains, 19%) , and V488I (4 strains, 15%) ; the missense mutation R101C in the FUR1 gene was identified in 11 (33%) superficial infection-derived strains, but not identified in deep infection-derived strains. Conclusion:The drug susceptibility and drug resistance mutations differed to some extent between superficial infection- and deep infection-derived fluconazole-resistant Candida albicans strains.
9.A nested case-control study on zinc levels in maternal whole blood and fetal cord blood and risk of congenital heart disease in offspring
Qian LIU ; Baohong MAO ; Zhirong DAI ; Wendi WANG ; Yaguang HU ; Qing LIU ; Yanxia WANG
Journal of Environmental and Occupational Medicine 2022;39(6):665-671
Background Zinc is a trace element essential for normal fetal heart development, and excess zinc can be toxic. The relationship between maternal and fetal zinc levels and the development of congenital heart disease (CHD) in the offspring is unclear. Objective To study the effects of maternal and neonatal zinc exposure levels on the risk of developing CHD in the offspring. Methods The data and biological samples of the study subjects were derived from the birth cohort established by Gansu Provincial Maternity and Child Care Hospital in Lanzhou from 2010 to 2012. Questionnaire surveys were conducted at baseline in the first trimester and at follow-up visits in the second trimester, the third trimester, and 42 d after delivery. Maternal venous blood during the third trimester and neonatal umbilical venous blood at delivery were collected, and information on their birth outcomes was extracted from medical records. Ninety-seven children with CHD diagnosed by echocardiography at birth and confirmed at the follow-up after 42 d were selected as the case group, and 194 healthy full-term infants were selected as the control group, 1∶2 matched for maternal age and geographical location from the database. The zinc concentrations in whole blood of pregnant mothers and umbilical cord blood of fetuses in both groups were measured by inductively coupled plasma mass spectrometry. According to the quartiles P25 and P75 of zinc levels in the whole blood of pregnant mothers and neonatal cord blood in the control group, zinc exposure was divided into three groups: low, medium, and high. After adjusting for maternal vaginal bleeding in early pregnancy, pre-pregnancy folic acid and vitamin supplementation, birth weight, and umbilical cerclage confounders, a multiple conditional logistic regression model was applied to analyze the associations between maternal whole blood and fetal umbilical cord blood zinc levels and the risk of CHD in the offspring, and a further subgroup analysis was performed by disease classification. Results The medians (P25, P75) of maternal whole blood zinc levels in the case group and the control group were 5.034 (3.456, 6.644) and 4.693 (3.411, 5.646) mg·L−1, respectively, with significant differences between the two groups (P=0.029). The medians (P25, P75) of neonatal cord blood zinc level was 2.153 (1.479, 2.405) mg·L−1 in the case group and 1.636 (1.304, 1.979) mg·L−1 in the control group, with significant differences between the two groups (P<0.001). The zinc levels of maternal whole blood and neonatal cord blood in the simple CHD group were significantly higher than those in the control group (P<0.05). The multiple conditional logistic regression model showed that compared with the maternal medium zinc exposure level group (3.41-5.65 mg·L−1), the risk of offspring CHD was 2.225 times of the high exposure level group (>5.65 mg·L−1) (OR=2.225, 95%CI: 1.017-4.868). Compared with the neonatal medium zinc exposure level group (1.30-1.98 mg·L−1), the neonatal high exposure level group (>1.98 mg·L−1) also had an increased risk of CHD (OR=4.132, 95%CI: 1.801-9.480). The subgroup analysis results showed that compared with corresponding medium exposure level groups, the risk of simple CHD in the offspring of the maternal high zinc exposure level group was increased (OR=4.081, 95%CI: 1.427-11.669), and the risks of simple CHD (OR=7.122, 95%CI: 2.126-23.854) and complex CHD (OR=5.165, 95%CI: 1.859-14.346) of neonates of the neonatal high zinc exposure level group were increased. Conclusion Under the exposure levels of the study population, high concentrations of zinc exposure in pregnant mothers and neonates may be associated with the incidence of CHD.
10.Analysis of correlation between the number of circulating DLBCL cells and marrow tumor burden by FCM and its clinical significance
Yuke LIU ; Qiyao PU ; Ran TAN ; Bowen WU ; Jiwei LI ; Baohong YUE
Chinese Journal of Laboratory Medicine 2021;44(12):1153-1162
Objective:To investigate the correlation between the number of circulating DLBCL cell and the marrow tumor cell burden and the prognostic indicators in patients with DLBCL, and to evaluate the feasibility of circulating DLBCL cell reflecting the marrow tumor burden and disease progression. Optimization of FCM for screening circulating DLBCL cell was done to monitor MRD and recurrence.Methods:We conducted a retrospective study in 75 diagnosed DLBCL patients in the First Affiliated Hospital of Zhengzhou University from June 2020 to February 2021, including 43 males and 32 females aged 61 (37-85) years. According to the diagnosis and treatment criteria, the patients were divided into initial and recurrence group ( n = 53), partial response(PR)group ( n=14) and complete response(CR)group ( n=8). According to the positive criteria of circulating DLBCL cells, 48 cases were divided into circulating DLBCL positive group and 27 cases were negative group. 30 anemia patients with non-B-cell tumor-related diseases were selected as the control group, including 16 males and 14 females, aged 52 (30-79) years. 70 healthy subjects, including 36 males and 34 females, aged 39 (25-57), were selected for methodology optimization. FCM was used to detect the ratio of marrow and circulating DLBCL cells in each group, and analyze the connection between circulating DLBCL cells and clinical indicators. Statistical analysis was performed using t test, χ 2 test, Kruskal-Wallis H test, Spearman rank correlation, and Logistic regression. Results:(1) Bone marrow and circulating DLBCL cells were not detected in CR group and control group; The positive rate of circulating DLBCL cells in the initial/recurrent group and PR groups was 75.47% and 57.14%, respectively. The proportion of bone marrow and circulating DLBCL cells was positively correlated in the two groups ( P value was <0.001 and 0.020, respectively). (2) The proportion of bone marrow and circulating DLBCL cells in the initial and recurrent groups, PR group, CR group and control group decreased successively ( P<0.05). The proportion of DLBCL cells was 27.72% (initial and recurrent bone marrow group), 26.92% (initial and recurrent circulating group), 3.23% (bone marrow PR group) and 1.67% (circulating PR group), respectively. (3) Compared with the negative group, the circulating DLBCL cell positive group had increased LDH, β 2-MG, and CMYC expression(≥80%), with decreased LYM, HGB<100 g/L, B symptoms, PD-L1 expression, and age ≥60 years, showing higher ECOG, aaIPI/IPI scores and Ann staging ( P<0.05). Age ≥60, B symptoms, and PD-L1 expression were independent risk factors for circulating DLBCL cells ( P<0.05). Conclusions:The detectable rate of circulating DLBCL cell could be improved by optimizing the preoperative treatment conditions of FCM. Circulating DLBCL cells can reflect the tumor burden and disease progression. Detecting circulating DLBCL cells may improve patients′ compliance.


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