1.Construction of Saikosaponin D Multifunctional Liposomes and Evaluation of Its Anti-liver Cancer Efficacy and Targeting
Kun YU ; Guochun YANG ; Yaliang JIANG ; Yunting XIAO ; Congxian WANG ; Qionge SUN ; Ziyue LI ; Yikun SHANG ; Yu MAO ; Xin CHENG
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(9):205-216
ObjectiveTo construct a multifunctional liposomal delivery system by replacing cholesterol(Chol) in conventional liposomes with saikosaponin D(SSD) and modifying with poloxamer 407(P407) for co-delivery of curcumin(Cur). The system was evaluated for in vivo tumor targeting and inhibitory effects on mouse subcutaneous solid tumors. MethodsSingle-factor and orthogonal tests combined with information entropy weighting were used to optimize the formulation process of the liposome with encapsulation efficiency and absolute Zeta potential as indexes, and validation studies and liposomal characterization were performed. A subcutaneous solid tumor model was established by injecting H22 hepatocellular carcinoma cells subcutaneously into the dorsal surface of the right forelimb of mice. DiR-loaded traditional Chol liposomes(P407-DiR-Chol-LPs, PDCL) and novel SSD-based liposomes(P407-DiR-SSD-LPs, PDSL) were prepared by the optimized formulation process, and tail vein injection was performed to investigate the impact of SSD on liposome tumor targeting with small animal in vivo imaging. Mice were randomly divided into eight groups, including blank group, model group, free doxorubicin(DOX) group(2 mg·kg-1), free Cur group(8 mg·kg-1), free SSD group(10 mg·kg-1), P407-Cur-Chol-LPs(PCCL) group, P407-SSD-LPs(PSL) group, and P407-Cur-SSD-Lps(PCSL) group. Treatments were administered intraperitoneally every other day for seven doses. Antitumor efficacy and biocompatibility were evaluated by monitoring body weight change, organ indices, tumor volume and mass, relative tumor proliferation rate(T/C), and tumor growth inhibition rate(TGI). Histopathological analysis of liver, kidney, and tumor tissues was performed using hematoxylin-eosin(HE) staining. Serum levels of aspartate aminotransferase(AST), alanine aminotransferase (ALT), blood urea nitrogen(BUN), and creatinine(Crea)in mice were quantified by fully automated biochemical analyzer. ResultsOrthogonal test yielded optimal ratios of Cur, SSD, and P407 to soybean phosphatidylcholine(SPC) as 1∶25, 1∶20, and 1∶4. The optimized PCSL exhibited spherical morphology with a particle size of 179.15 nm, a Zeta potential of -47.25 mV, and an encapsulation efficiency of 96.40%. Its in vitro release profile conformed to first-order kinetics, demonstrating excellent storage stability and hemocompatibility. In vivo imaging revealed that the fluorescence signal in tumor tissues and the fluorescence intensity ratio between tumors and organs were significantly higher in the PDSL group than in the PDCL group(P<0.05, P<0.01). Among the treatment groups, PCSL group showed superior efficacy over free Cur group, free SSD group, PCCL group, and PSL group, with TGI>40% and T/C<60%, indicating pronounced anti-hepatocellular carcinoma effects(P<0.05, P<0.01). Histopathology and serum biochemistry indicated minimal hepatorenal toxicity and improved hepatic and renal function in PCSL-treated mice. ConclusionReplacing Chol with SSD in preparing multifunctional drug delivery systems not only stabilizes liposomes but also yields superior anti-hepatocellular carcinoma efficacy, achieving the effect of drug-excipient integration. Co-delivery of Cur via this system can be used for treating subcutaneous solid tumors in hepatocellular carcinoma, providing new insights and technical approaches for anti-hepatocellular carcinoma research and the meridian-guiding and messenger-directing theory in traditional Chinese medicine.
2.Quantitative Chemical Exchange Saturation Transfer MRI for Diagnosing Thyroid-Associated Ophthalmopathy Activity: A Prospective Feasibility Study
YunMeng WANG ; WeiYi ZHOU ; YuanYuan CUI ; JianKun DAI ; YuXin CHENG ; QingQing WEN ; TianYi XING ; HongBiao SUN ; Song JIANG ; MeiLing XU ; ZhenHuan WANG ; Yan SONG ; Tuo LI ; Yi XIAO
Korean Journal of Radiology 2026;27(2):161-173
Objective:
This prospective study evaluated the feasibility of chemical exchange saturation transfer (CEST) MRI for assessing disease activity in thyroid-associated ophthalmopathy (TAO).
Materials and Methods:
A total of 88 patients with active TAO, 76 with inactive TAO, and 30 healthy controls were enrolled. CEST MRI-derived magnetization transfer ratio (MTR) and MTR asymmetry (MTRasym) at 1 ppm, 2 ppm, and 3.5 ppm were calculated. Clinical data, MTR, and MTRasym values for the extraocular muscles (one representative muscle per eye, yielding two measurements per participant) were compared among the groups. Spearman’s correlation was used to examine associations between imaging parameters and the clinical activity score (CAS) in patients with TAO. Logistic regression analysis was used to identify independent associations between imaging parameters and disease activity in patients with TAO (active vs. inactive). Receiver operating characteristic (ROC) analysis was conducted to evaluate the diagnostic performance for discriminating active from inactive TAO.
Results:
Patients with active TAO showed lower MTR values (P < 0.001) and higher MTRasym (1 ppm), MTRasym (2 ppm), and MTRasym (3.5 ppm) (all P < 0.001) compared with those with inactive TAO. MTR was negatively correlated with CAS (r = -0.402; P < 0.001), while MTRasym (1 ppm), MTRasym (2 ppm), and MTRasym (3.5 ppm) were positively correlated with CAS (r = 0.369, 0.350, and 0.349, respectively;all P < 0.001). MTR and MTRasym (1 ppm) were independently associated with TAO activity. The areas under the ROC curve (AUCs) for MTR and MTRasym (1 ppm) in discriminating active from inactive TAO were 0.772 and 0.730, respectively. Combining MTR with MTRasym (1 ppm) significantly improved diagnostic performance compared with either parameter alone, achieving an AUC of 0.805 (P = 0.029 and 0.001).
Conclusion
MTR and MTRasym (1 ppm) were independently associated with TAO activity. Their combination further enhanced diagnostic performance in distinguishing active from inactive TAO, suggesting their potential as quantitative imaging biomarkers to guide treatment in patients with TAO.
3.Disease Burden and Associated Risk Factors for Early-Onset Colorectal Cancer in the World, China and the United States
Yuqing CHEN ; Yueyang ZHOU ; Xinran CHENG ; Bin LU ; Min DAI ; Hongda CHEN
Medical Journal of Peking Union Medical College Hospital 2026;17(4):1164-1173
To evaluate and project the disease burden of early-onset colorectal cancer (EOCRC), and to identify its major risk factors. Data from the Global Burden of Disease Study 2021 were used. EOCRC was defined as colorectal cancer diagnosed at ages 15-49 years. We extracted the absolute numbers and crude rates of incidence, mortality, and disability-adjusted life years (DALYs) of EOCRC in the world, China, and the United States from 1990 to 2021. Age-standardized rates were then calculated accordingly, and the associated risk factors were summarized. Joinpoint regression was applied to assess temporal trends in global EOCRC age-standardized incidence rate (ASIR), mortality rate (ASMR), and DALY rate. The Bayesian age-period-cohort (BAPC) model was used to project the EOCRC burden from 2022 to 2040. In 2021, an estimated 211 900 new EOCRC cases were reported globally, corresponding to an ASIR of 5.37 per 100 000, along with 79 500 deaths and a total of 4.00 million DALYs lost. China experienced a substantially higher burden than the global average, with an ASIR of 10.02 per 100 000, an ASMR of 3.11 per 100 000, and an age-standardized DALYs rate(ASDR) of 160.93 per 100 000, disproportionately affecting males. The United States had a higher ASIR(10.73 per 100 000) than China, but exhibited lower ASMR(2.53 per 100 000) and ASDR(127.81 per 100 000). From 1990 to 2021, ASIRs increased globally (AAPC=0.374) and more markedly in China (AAPC=1.423), whereas ASMR (AAPC=-0.855) and DALY rates (AAPC=-0.834) declined. In China, ASMR and DALY rates declined overall but rebounded in recent years, whereas in the United States, ASIR began to decrease after 2017, while ASMR and DALY rates remained relatively stable. By sex, China's male ASIR increased by 89.7% between 1990 and 2021, with rises also observed in ASMR and DALY rates in recent years. Regarding risk factors, insufficient whole-grain intake and excessive red meat consumption emerged as the leading modifiable contributors to EOCRC mortality and DALYs both globally and in the two countries, jointly accounting for 31.20% and 30.82% of the global burden, respectively. Heavy alcohol consumption and tobacco use were particularly significant contributors among Chinese men. Projections indicated that by 2040, China's ASIR is projected to rise to 17.04 per 100 000, indicating a continued increase in disease burden, whereas the United States is expected to maintain a downward trend. Although China's EOCRC mortality and DALY burden have declined over the past three decades, the incidence remains markedly higher and is rising more rapidly compared with the global level and the U.S. More effective public health strategies are urgently needed, including promoting earlier and wider implementation of colorectal cancer screening, strengthening follow-up and referral systems, improving dietary structure, and intensifying tobacco and alcohol control, to mitigate the growing burden of EOCRC.
4.Current Status and Prospects of Artificial Intelligence Technologyin Minimally Invasive Gastric Cancer Surgery
Tao ZHANG ; Boer SU ; Guanxing LIANG ; Shiman DAI ; Jiawei CHEN ; Zhengjie LIU ; Cheng PENG ; Rong LIU ; Qinglan LIN ; Yidan WU ; Yuhui WU ; Jiaming WEN ; Hong WANG ; Hao CHEN ; Jiang YU
Medical Journal of Peking Union Medical College Hospital 2026;17(4):933-942
Gastric cancer remains a highly prevalent malignancy worldwide, with surgical resection currently constituting the cornerstone of treatment aimed at improving long-term patient survival. Owing to their notable advantages, including reduced surgical trauma and accelerated postoperative recovery, minimally invasive procedures are progressively supplanting conventional open surgery and have become the mainstream approach in gastric cancer management. Concurrently, the rapid advancement of artificial intelligence (AI) technologies has enabled real-time intraoperative monitoring of surgical scenes, thereby furnishing novel technical support for adjunctive decision-making, surgical navigation, and skill assessment during gastrectomy. This article provides a systematic review of the current status of AI applications in minimally invasive gastric cancer surgery, with a particular focus on research progress pertaining to instrument recognition, surgical phase identification, delineation of normal anatomical structures, detection of metastatic foci, and early warning of intraoperative adverse events. Furthermore, we discuss the potential value of AI in enhancing surgical efficiency, ensuring patient safety, and optimizing surgical education. On this basis, we further analyze the principal challenges and inherent risks confronting current AI systems, with the aim of informing future technological innovation and facilitating clinical translation.
5.Expert consensus on electronic patient-reported outcome-based symptom management for perioperative lung cancer patients (version 2026)
Wei DAI ; Cheng LEI ; Yuanqiang ZHANG ; Rong ZHANG ; Pengyu Jinming ; Jinming XU ; Yuzhen ZHENG ; Liang ZHAO ; Guibin QIAO ; Guowei CHE ; Jian HU ; Lei JIANG ; Jie LI ; Qiang LI ; Qiuling SHI
Chinese Journal of Clinical Thoracic and Cardiovascular Surgery 2026;33(08):1166-1178
Patients with lung cancer experience a heavy symptom burden during the perioperative period, which seriously affects their recovery and quality of life. Traditional symptom management models rely mainly on scheduled ward rounds during hospitalization and outpatient follow-up after discharge. However, they have limitations such as delayed symptom recognition, lack of post-discharge monitoring, and non-quantitative symptom assessment, which often lead to delayed interventions and low patient satisfaction. In recent years, the symptom management model based on electronic patient-reported outcomes (ePRO) has been increasingly valued in clinical practice. Existing high-level evidence from both domestic and international studies indicates that, through proactive monitoring, real-time alerts, and remote interventions, this model enables dynamic and continuous symptom management and helps improve patient recovery and healthcare experience. As a supplement to routine medical care, the ePRO-based symptom management model aims to enhance the quality of care rather than replace existing medical processes. To promote the standardized application of this model in perioperative lung cancer care, this consensus integrates domestic and international evidence. After multiple rounds of voting by more than 50 experts, it formulates 12 consensus statements covering the three core components, symptom monitoring, alerting, and intervention, to provide scientific and practical recommendations for clinical practice.
6.Urban-rural difference in adverse outcomes of pulmonary tuberculosis in patients with pulmonary tuberculosis-diabetes mellitus comorbidity
FANG Zijian ; LI Qingchun ; XIE Li ; SONG Xu ; DAI Ruoqi ; WU Yifei ; JIA Qingjun ; CHENG Qinglin
Journal of Preventive Medicine 2025;37(1):7-11
Objective:
To investigate the urban and rural differences in adverse outcomes of pulmonary tuberculosis (PTB) in patients with pulmonary tuberculosis-diabetes mellitus comorbidity (PTB-DM), so as to provide insights into improving the prevention and treatment measures for PTB-DM.
Methods:
Patients with PTB-DM who were admitted and discharged from 14 designated tuberculosis hospitals in Hangzhou City from 2018 to 2022 were selected. Basic information, and history of diagnosis and treatment were collected through hospital information systems. The adverse outcomes of PTB were defined as endpoints, and the proportions of adverse outcomes of PTB in urban and rural patients with PTB-DM were analyzed. Factors affecting the adverse outcomes of PTB were identified using a multivariable Cox proportional hazards regression model.
Results:
A total of 823 patients with PTB-DM were enrolled, including 354 (43.01%) urban and 469 (56.99%) rural patients. There were 112 (13.61%) patients with adverse outcomes of PTB. The proportions of adverse outcomes of PTB in urban and rural patients were 14.41% and 13.01%, respectively, with no statistically significant difference (P>0.05). Multivariable Cox proportional hazards regression analysis identified first diagnosed in county-level hospitals or above (HR=2.107, 95%CI: 1.181-3.758) and drug resistance (HR=3.303, 95%CI: 1.653-6.600) as the risk factors for adverse outcomes of PTB in urban patients with PTB-DM, while the treatment/observed management throughout the process (HR=0.470, 95%CI: 0.274-0.803) and fixed-dose combinations throughout the process (HR=0.331, 95%CI: 0.151-0.729) as the protective factors for adverse outcomes in rural patients with PTB-DM.
Conclusions
There are differences in influencing factors for adverse outcomes of PTB in urban and rural patients with PTB-DM. The adverse outcomes of PTB are associated with first diagnosed hospitals and drug resistance in urban patients, and are associated with the treatment/observed management and fixed-dose combinations throughout the process in rural patients.
7.Effect of Folic Acid-modified Crebanine Polyethylene Glycol-polylactic Acid Hydroxyacetic Acid Copolymer Nanoparticles Combined with Ultrasonic Irradiation on Subcutaneous Tumor Growth of Liver Cancer in Mice
Rui PAN ; Junze TANG ; Hailiang ZHANG ; Kun YU ; Xiaoyu ZHAO ; Xin CHENG
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(4):217-225
ObjectiveTo investigate the effect of folic acid-modified crebanine polyethylene glycol-polylactic acid hydroxyacetic acid copolymer(PEG-PLGA) nanoparticles(FA-Cre@PEG-PLGA NPs, hereinafter referred to as NPs) combined with ultrasonic irradiation on subcutaneous tumor of liver cancer in Kunming(KM) mice. MethodsEighty-four healthy male KM mice were utilized to establish a subcutaneous tumor model of mouse hepatocellular carcinoma with H22 cells, then mice were randomly divided into model group, placebo group, hydroxycamptothecin group(8 mg∙kg-1), low, medium and high dose crebanine raw material groups(2, 2.5, 3 mg∙kg-1, hereinafter referred to as the low, medium and high dose crebanine groups, respectively), low, medium and high dose NPs groups(2, 2.5, 3 mg∙kg-1), and low, medium and high dose NPs combined with ultrasonic irradiation groups(2, 2.5, 3 mg∙kg-1, hereinafter referred to as the low, medium and high dose combination groups, respectively). The corresponding doses of drugs were administered via tail vein injection, the model group received no treatment, while the placebo group was injected with an equivalent amount of normal saline. Dosing was conducted for a total of 10 times on alternate days. The body mass of the mice was monitored, and parameters such as body mass change rate, thymus index, spleen index, tumor volume, tumor weight, relative tumor growth rate(T/C), and tumor inhibition rate(TGI) were calculated. Pathological changes in liver and kidney tissues as well as the tumor were observed by hematoxylin-eosin(HE) staining. Additionally, the levels of aspartate aminotransferase(AST), alanine aminotransferase(ALT), blood urea nitrogen(BUN) and creatinine(CREA) in serum of mice were detected by biochemical method. Furthermore, the effect of ultrasound on the distribution of NPs in subcutaneous tumors of mouse hepatocellular carcinoma was observed by in vivo imaging technique. ResultsAmong different treatment methods, the combination of NPs and ultrasound irradiation had the best therapeutic effect. Compared with the model group, the body mass growth rates of mice in the medium and high combination groups decreased, while the thymus index and spleen index increased, but there was no statistically significant difference in serum AST, ALT, BUN and CREA levels, indicating that NPs combined with ultrasound irradiation had little effect on the normal physiological state of the body, oth groups had TGI>40% and T/C<60%, indicating a clear anti-tumor effect. Pathological analysis showed that compared with the NPs groups, the combination groups exhibited varying degrees of necrosis in tumor cells, accompanied by less damage to the liver and kidneys. In vivo imaging of small animals showed that compared with the high dose NPs group, the high dose combination group had stronger tumor targeting ability(P<0.01). ConclusionNPs combined with ultrasonic irradiation can not only effectively targeted the drug to the tumor site, inhibit the subcutaneous tumor growth of mouse liver cancer, but also decrease damage to liver and kidney tissues.
8.Oral Herombopag Olamine and subcutaneous recombinant human thrombopoietin after haploidentical hematopoietic stem cell transplantation
Dai KONG ; Xinkai WANG ; Wenhui ZHANG ; Xiaohang PEI ; Cheng LIAN ; Xiaona NIU ; Honggang GUO ; Junwei NIU ; Zunmin ZHU ; Zhongwen LIU
Chinese Journal of Tissue Engineering Research 2025;29(1):1-7
BACKGROUND:Allogeneic hematopoietic stem cell transplantation is an important treatment for malignant hematological diseases,and delayed postoperative platelet implantation is a common complication that seriously affects the quality of patient survival;however,there are no standard protocols to improve platelet implantation rates and prevent platelet implantation delays. OBJECTIVE:To compare the safety and efficacy of oral Herombopag Olamine versus subcutaneous recombinant human thrombopoietin for promoting platelet implantation in patients with malignant hematological diseases undergoing haploid hematopoietic stem cell transplantation. METHODS:Clinical data of 163 patients with malignant hematological diseases who underwent haploidentical hematopoietic stem cell transplantation from January 2016 to October 2022 were retrospectively analyzed.A total of 72 patients who started to subcutaneously inject recombinant human thrombopoietin at+2 days were categorized into the recombinant human thrombopoietin group;a total of 27 patients who started to orally take Herombopag Olamine at+2 days were categorized into the Herombopag Olamine group;and 64 patients who did not apply Herombopag Olamine or recombinant human thrombopoietin were categorized into the blank control group.The implantation status,incidence of acute graft-versus-host disease of degree II-IV within 100 days,1-year survival rate,1-year recurrence rate,and safety were analyzed in the three groups. RESULTS AND CONCLUSION:(1)The average follow-up time was 52(12-87)months.The implantation time of neutrophils in the blank control group,recombinant human thrombopoietin group,and Herombopag Olamine group was(12.95±3.88)days,(14.04±3.71)days,and(13.89±2.74)days,respectively,with no statistically significant difference(P=0.352);the implantation time of platelets was(15.16±6.27)days,(17.67±6.52)days,and(17.00±4.75)days,with no statistically significant difference(P=0.287).(2)The complete platelet implantation rate on day 60 was 64.06%,90.28%,and 92.59%,respectively,and the difference was statistically significant(P<0.001).The subgroup analysis showed that the difference between the blank control group and the recombinant human thrombopoietin group was statistically significant(P<0.001),and the difference between the blank control group and the Herombopag Olamine group was statistically significant(P=0.004).The difference was not statistically significant between the recombinant human thrombopoietin group and Herombopag Olamine group(P=0.535).(3)100-day II-IV degree acute graft-versus-host disease incidence in the blank control group,recombinant human thrombopoietin group,and Herombopag Olamine group were 25.00%,30.56%,and 25.93%,respectively,and the difference was not statistically significant(P=0.752).(4)The incidence of cytomegalovirus anemia,cytomegalovirus pneumonia,and hepatic function injury had no statistical difference among the three groups(P>0.05).(5)During the follow-up period,there was no thrombotic event in any of the three groups of patients.(6)The results showed that recombinant human thrombopoietin and Herombopag Olamine could improve the platelet implantation rate of malignant hematological disease patients after haploidentical hematopoietic stem cell transplantation,with comparable efficacy and good safety.
9.Role of SPP1 and MYD88 in diacetylmorphine-induced apoptosis in cardiomyocytes
Jingyu LIU ; Chenlu DAI ; Min JI ; Liping SU ; Min LIANG ; Ming CHENG ; Xuanming LIU ; Linlin ZHANG ; Yujie GAO ; Sha-oshuai CHEN ; Hongwei PU
The Journal of Practical Medicine 2025;41(22):3510-3519
Objective To explore the role of secreted phosphoprotein 1(SPP1)and myeloid differentiation primary response 88(MYD88)in morphine-induced cardiomyocyte apoptosis.Methods A morphine addiction model was established in Sprague-Dawley(SD)rats.Twelve SD rats were randomly assigned to the normal saline(NS)group or the morphine-dependent(DAM)group.Histopathological analysis was employed to observe and compare myocardial tissue morphology between the two groups.Terminal deoxynucleotidyl transferase-mediated dUTP nick-end labeling(TUNEL)staining was performed to assess the number of apoptotic cells in each group.The expression levels of SPP1 and MYD88 were evaluated using immunohistochemistry.Quantitative real-time poly merase chain reaction(RT-qPCR)and Western blot were used to detect the mRNA and protein expression of SPP1,MYD88,Bax,Bcl2,Caspase-3,and Caspase-9.Simultaneously,Western blot analysis was used to detected the expression of Cleaved Caspase-3 and Cleaved Caspase-9 proteins.In vitro,SPP1 expression was knocked down in primary neonatal rat cardiomyocytes(NRCMs),and cells were divided into three groups:control(CON),morphine treated(DA),and shSPP1#3+DA.Cell viability was assessed using the CCK-8 assay,and apoptosis rates were determined by flow cytometry.Results HE and TUNEL staining of myocardial tissues from morphine-addicted SD rats revealed that,compared with the NS group,myofibrils in the DAM group exhibited partial disruption and a significant increase in apoptotic cells(P<0.05).Western blot and RT-qPCR analyses demonstrated that,relative to the NS group,the mRNA and protein levels of SPP1,MYD88,Bax,Caspase-3,and Caspase-9 were significantly upregulated in the DAM group(P<0.05),whereas Bcl2 expression was significantly downregulated at both mRNA and protein levels(P<0.05),and the protein expression levels of Cleaved Caspase-3 and Cleaved Caspase-9 were also increased.with all differences being statistically significant.In NRCMs following morphine intervention,cell viability in the DA group was markedly reduced compared to the CON group(P<0.05),accompanied by a signifi-cant increase in apoptosis rate(P<0.05).Consistently,Western blot and RT-qPCR results showed elevated mRNA and protein expression of SPP1,MYD88,Bax,Caspase-3,and Caspase-9 in the DA group(P<0.05),along with decreased Bcl2 expression(P<0.05).The protein expression levels of Cleaved Caspase-3 and Cleaved Caspase-9 were elevated simultaneously.In contrast,the shSPP1#3+DA group exhibited opposing trends compared to the DA group,with statistically sig nificant differences(P<0.05).Conclusion SPP1 and MYD88 play critical roles in mediating morphine-induced cardiomyocyte apoptosis,and silencing SPP1 has been shown to significantly reduce the extent of cardiomyocyte apoptosis following morphine exposure.
10.Impact of postoperative complications on adverse outcomes following curative-intent resection for gallbladder cancer: a national multicenter real-world study
Zhipeng LIU ; Cheng CHEN ; Jie BAI ; Yan JIANG ; Dong ZHANG ; Wei GUO ; Zhixin WANG ; Xiang LAN ; Yufu YE ; Zhaoping WU ; Jinxue ZHOU ; Shuo JIN ; Yi ZHU ; Wei CHEN ; Dalong YIN ; Yao CHENG ; Haisu DAI ; Lei ZHANG ; Zhiyu CHEN
Chinese Journal of Digestive Surgery 2025;24(7):874-881
Objective:To investigate the impact of postoperative complications on adverse outcomes following curative-intent resection for gallbladder cancer (GBC).Methods:The multi-center real-world study was conducted. The clinicopathological data of 629 patients with GBC, who were admitted to 14 medical centers including The First Affiliated Hospital of Army Medical University from the national multicenter database of Biliary Surgery Group of Elite Group of Chinese Journal of Digestive Surgery, from April 2020 to April 2024 were collected. There were 225 males and 404 females, aged (64±10)years. Patients underwent open curative-intent resection for GBC. Observation indicators: (1)surgery, postoperative complica-tions and adverse outcomes; (2) analysis of risk factors affecting postoperative adverse outcomes in patients and population attributable fraction (PAF). Missing data in predictor variables were addressed using multiple imputation with chained equations, while cases with missing outcome variables were addressed using the "multiple imputation then deletion (MID)" strategy. The severity of multicollinearity among independent variables was assessed using the variance inflation factor (VIF) test. Multivariable possion regression models with log link and robust error variance were construc-ted incorporating restricted cubic splines (3 knots) to address nonlinear relationships in continuous variables, calculating adjusted relative risk ( RR) with corresponding 95% confidence interval ( CI). Adjusted PAF was calculated for each imputed dataset using the AF package of R software, with subsequent pooling performed according to Rubin's rules. Results:(1) Surgery, postoperative complications and adverse outcomes. All 629 patients underwent curative-intent resection for GBC, of which 143 cases had postoperative complications, including 68 cases of intra-abdominal ascites, 39 cases of pulmonary infection, 21 cases of bile leakage, 12 cases of intra-abdominal hemorrhage, 11 cases of liver failure, 10 cases of pan-creatic fistula, 10 cases of wound infection, 10 cases of gastroparesis, 7 cases of cholangitis, 7 cases of sepsis. The same patient could have more than one kind of complication. Of 629 patients, there were 19 cases of postoperative 90-day death and 11 cases of missing data, 42 cases with post-operative 90-day reoperation and 7 cases with missing data, 44 cases with postoperative 90-day readmission and 3 cases with missing data, 155 cases with prolonged postoperative hospital stay and 3 cases with missing data. (2) Analysis of risk factors affecting the postoperative adverse outcomes in patients and PAF. Results of multivariate analysis showed that pulmonary infection and liver failure were independent risk factors for postoperative 90-day mortality ( RR=3.74, 12.15, 95% CI as 1.18-11.83, 1.98-74.48, P<0.05). Pulmonary infection demons-trated the highest PAF as 4.61% (95% CI as 3.94%-5.28%, P<0.05). Intra-abdominal ascites, pulmonary infection, bile leakage, and intra-abdominal hemorrhage were independent risk factors for post-operative 90-day reoperation ( RR=4.80, 3.62, 3.46, 4.99, 95% CI as 2.49-9.26, 1.42-9.21, 1.34-8.92, 1.55-16.06, P<0.05). Intra-abdominal ascites demonstrated the highest PAF as 8.65% (95% CI as 8.22%-9.08%, P<0.05). Intra-abdominal ascites, bile leakage, and liver failure were independent risk factors for postoperative 90-day readmission ( RR=6.20, 3.33, 14.33, 95% CI as 3.21-11.95, 1.33-8.35, 3.72-55.28, P<0.05). Intra-abdominal ascites demonstrated the highest PAF as 9.11% (95% CI as 8.85%-9.37%, P<0.05). Intra-abdominal ascites, pulmonary infection, bile leakage, liver failure, and wound infection were independent risk factors for prolonged postoperative hospital stay ( RR=2.29, 2.21, 2.26, 2.14, 3.35, 95% CI as 1.63-3.23, 1.41-3.46, 1.32-3.86, 1.11-4.13, 1.70-6.60, P<0.05). Intra-abdominal ascites demonstrated the highest PAF as 6.03% (95% CI as 5.71%-6.35%, P<0.05). Conclusion:Pulmonary infection is the most significant risk factor for postoperative 90-day mortality after curative-intent resection for GBC, while intra-abdominal ascites is the most significant risk factor for postoperative 90-day reoperation, postoperative 90-day readmission, and prolonged postoperative hospital stay.


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