1.Genetic Subtypes and Pretreatment Drug Resistance in the Newly Reported Human Immunodeficiency Virus-Infected Men Aged≥50 Years Old in Guangxi.
Ning-Ye FANG ; Wen-Cui WEI ; Jian-Jun LI ; Ping CEN ; Xian-Xiang FENG ; Dong YANG ; Kai-Ling TANG ; Shu-Jia LIANG ; Yu-Lan SHAO ; Hua-Xiang LU ; He JIANG ; Qin MENG ; Shuai-Feng LIU ; Qiu-Ying ZHU ; Huan-Huan CHEN ; Guang-Hua LAN ; Shi-Xiong YANG ; Li-Fang ZHOU ; Jing-Lin MO ; Xian-Min GE
Acta Academiae Medicinae Sinicae 2023;45(3):399-404
		                        		
		                        			
		                        			Objective To analyze the genetic subtypes of human immunodeficiency virus (HIV) and the prevalence of pretreatment drug resistance in the newly reported HIV-infected men in Guangxi. Methods The stratified random sampling method was employed to select the newly reported HIV-infected men aged≥50 years old in 14 cities of Guangxi from January to June in 2020.The pol gene of HIV-1 was amplified by nested reverse transcription polymerase chain reaction and then sequenced.The mutation sites associated with drug resistance and the degree of drug resistance were then analyzed. Results A total of 615 HIV-infected men were included in the study.The genetic subtypes of CRF01_AE,CRF07_BC,and CRF08_BC accounted for 57.4% (353/615),17.1% (105/615),and 22.4% (138/615),respectively.The mutations associated with the resistance to nucleoside reverse transcriptase inhibitors (NRTI),non-nucleoside reverse transcriptase inhibitors (NNRTI),and protease inhibitors occurred in 8 (1.3%),18 (2.9%),and 0 patients,respectively.M184V (0.7%) and K103N (1.8%) were the mutations with the highest occurrence rates for the resistance to NRTIs and NNRTIs,respectively.Twenty-two (3.6%) patients were resistant to at least one type of inhibitors.Specifically,4 (0.7%),14 (2.3%),4 (0.7%),and 0 patients were resistant to NRTIs,NNRTIs,both NRTIs and NNRTIs,and protease inhibitors,respectively.The pretreatment resistance to NNRTIs had much higher frequency than that to NRTIs (2.9% vs.1.3%;χ2=3.929,P=0.047).The prevalence of pretreatment resistance to lamivudine,zidovudine,tenofovir,abacavir,rilpivirine,efavirenz,nevirapine,and lopinavir/ritonavir was 0.8%, 0.3%, 0.7%, 1.0%, 1.3%, 2.8%, 2.9%, and 0, respectively. Conclusions CRF01_AE,CRF07_BC,and CRF08_BC are the three major strains of HIV-infected men≥50 years old newly reported in Guangxi,2020,and the pretreatment drug resistance demonstrates low prevalence.
		                        		
		                        		
		                        		
		                        			Male
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Middle Aged
		                        			;
		                        		
		                        			Reverse Transcriptase Inhibitors/therapeutic use*
		                        			;
		                        		
		                        			HIV Infections/drug therapy*
		                        			;
		                        		
		                        			Drug Resistance, Viral/genetics*
		                        			;
		                        		
		                        			China/epidemiology*
		                        			;
		                        		
		                        			Mutation
		                        			;
		                        		
		                        			HIV-1/genetics*
		                        			;
		                        		
		                        			Protease Inhibitors/therapeutic use*
		                        			;
		                        		
		                        			Genotype
		                        			
		                        		
		                        	
2.Enhanced recovery after surgery in transurethral surgery for benign prostatic hyperplasia.
Jing ZHOU ; Zhu-Feng PENG ; Pan SONG ; Lu-Chen YANG ; Zheng-Huan LIU ; Shuai-Ke SHI ; Lin-Chun WANG ; Jun-Hao CHEN ; Liang-Ren LIU ; Qiang DONG
Asian Journal of Andrology 2023;25(3):356-360
		                        		
		                        			
		                        			Enhanced recovery after surgery (ERAS) measures have not been systematically applied in transurethral surgery for benign prostatic hyperplasia (BPH). This study was performed on patients with BPH who required surgical intervention. From July 2019 to June 2020, the ERAS program was applied to 248 patients, and the conventional program was applied to 238 patients. After 1 year of follow-up, the differences between the ERAS group and the conventional group were evaluated. The ERAS group had a shorter time of urinary catheterization compared with the conventional group (mean ± standard deviation [s.d.]: 1.0 ± 0.4 days vs 2.7 ± 0.8 days, P < 0.01), and the pain (mean ± s.d.) was significantly reduced through postoperative hospitalization days (PODs) 0-2 (POD 0: 1.7 ± 0.8 vs 2.4 ± 1.0, P < 0.01; POD 1: 1.6 ± 0.9 vs 3.5 ± 1.3, P < 0.01; POD 2: 1.2 ± 0.7 vs 3.0 ± 1.3, P < 0.01). No statistically significant difference was found in the rate of postoperative complications, such as postoperative bleeding (P = 0.79), urinary retention (P = 0.40), fever (P = 0.55), and readmission (P = 0.71). The hospitalization cost of the ERAS group was similar to that of the conventional group (mean ± s.d.: 16 927.8 ± 5808.1 Chinese Yuan [CNY] vs 17 044.1 ± 5830.7 CNY, P =0.85). The International Prostate Symptom Scores (IPSS) and quality of life (QoL) scores in the two groups were also similar when compared at 1 month, 3 months, 6 months, and 12 months after discharge. The ERAS program we conducted was safe, repeatable, and efficient. In conclusion, patients undergoing the ERAS program experienced less postoperative stress than those undergoing the conventional program.
		                        		
		                        		
		                        		
		                        			Male
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Prostatic Hyperplasia/complications*
		                        			;
		                        		
		                        			Quality of Life
		                        			;
		                        		
		                        			Transurethral Resection of Prostate/adverse effects*
		                        			;
		                        		
		                        			Treatment Outcome
		                        			;
		                        		
		                        			Enhanced Recovery After Surgery
		                        			
		                        		
		                        	
3.Safety and efficacy of the early administration of levosimendan in patients with acute non-ST-segment elevation myocardial infarction and elevated NT-proBNP levels: An Early Management Strategy of Acute Heart Failure (EMS-AHF).
Feng XU ; Yuan BIAN ; Guo Qiang ZHANG ; Lu Yao GAO ; Yu Fa LIU ; Tong Xiang LIU ; Gang LI ; Rui Xue SONG ; Li Jun SU ; Yan Ju ZHOU ; Jia Yu CUI ; Xian Liang YAN ; Fang Ming GUO ; Huan Yi ZHANG ; Qing Hui LI ; Min ZHAO ; Li Kun MA ; Bei An YOU ; Ge WANG ; Li KONG ; Jian Liang MA ; Xin Fu ZHOU ; Ze Long CHANG ; Zhen Yu TANG ; Dan Yu YU ; Kai CHENG ; Li XUE ; Xiao LI ; Jiao Jiao PANG ; Jia Li WANG ; Hai Tao ZHANG ; Xue Zhong YU ; Yu Guo CHEN
Chinese Journal of Internal Medicine 2023;62(4):374-383
		                        		
		                        			
		                        			Objectives: To investigated the safety and efficacy of treating patients with acute non-ST-segment elevation myocardial infarction (NSTEMI) and elevated levels of N-terminal pro-hormone B-type natriuretic peptide (NT-proBNP) with levosimendan within 24 hours of first medical contact (FMC). Methods: This multicenter, open-label, block-randomized controlled trial (NCT03189901) investigated the safety and efficacy of levosimendan as an early management strategy of acute heart failure (EMS-AHF) for patients with NSTEMI and high NT-proBNP levels. This study included 255 patients with NSTEMI and elevated NT-proBNP levels, including 142 males and 113 females with a median age of 65 (58-70) years, and were admitted in the emergency or outpatient departments at 14 medical centers in China between October 2017 and October 2021. The patients were randomly divided into a levosimendan group (n=129) and a control group (n=126). The primary outcome measure was NT-proBNP levels on day 3 of treatment and changes in the NT-proBNP levels from baseline on day 5 after randomization. The secondary outcome measures included the proportion of patients with more than 30% reduction in NT-proBNP levels from baseline, major adverse cardiovascular events (MACE) during hospitalization and at 6 months after hospitalization, safety during the treatment, and health economics indices. The measurement data parameters between groups were compared using the t-test or the non-parametric test. The count data parameters were compared between groups using the χ² test. Results: On day 3, the NT-proBNP levels in the levosimendan group were lower than the control group but were statistically insignificant [866 (455, 1 960) vs. 1 118 (459, 2 417) ng/L, Z=-1.25,P=0.21]. However, on day 5, changes in the NT-proBNP levels from baseline in the levosimendan group were significantly higher than the control group [67.6% (33.8%,82.5%)vs.54.8% (7.3%,77.9%), Z=-2.14, P=0.03]. There were no significant differences in the proportion of patients with more than 30% reduction in the NT-proBNP levels on day 5 between the levosimendan and the control groups [77.5% (100/129) vs. 69.0% (87/126), χ²=2.34, P=0.13]. Furthermore, incidences of MACE did not show any significant differences between the two groups during hospitalization [4.7% (6/129) vs. 7.1% (9/126), χ²=0.72, P=0.40] and at 6 months [14.7% (19/129) vs. 12.7% (16/126), χ²=0.22, P=0.64]. Four cardiac deaths were reported in the control group during hospitalization [0 (0/129) vs. 3.2% (4/126), P=0.06]. However, 6-month survival rates were comparable between the two groups (log-rank test, P=0.18). Moreover, adverse events or serious adverse events such as shock, ventricular fibrillation, and ventricular tachycardia were not reported in both the groups during levosimendan treatment (days 0-1). The total cost of hospitalization [34 591.00(15 527.46,59 324.80) vs. 37 144.65(16 066.90,63 919.00)yuan, Z=-0.26, P=0.80] and the total length of hospitalization [9 (8, 12) vs. 10 (7, 13) days, Z=0.72, P=0.72] were lower for patients in the levosimendan group compared to those in the control group, but did not show statistically significant differences. Conclusions: Early administration of levosimendan reduced NT-proBNP levels in NSTEMI patients with elevated NT-proBNP and did not increase the total cost and length of hospitalization, but did not significantly improve MACE during hospitalization or at 6 months.
		                        		
		                        		
		                        		
		                        			Male
		                        			;
		                        		
		                        			Female
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Aged
		                        			;
		                        		
		                        			Natriuretic Peptide, Brain
		                        			;
		                        		
		                        			Simendan/therapeutic use*
		                        			;
		                        		
		                        			Non-ST Elevated Myocardial Infarction
		                        			;
		                        		
		                        			Heart Failure/drug therapy*
		                        			;
		                        		
		                        			Peptide Fragments
		                        			;
		                        		
		                        			Arrhythmias, Cardiac
		                        			;
		                        		
		                        			Biomarkers
		                        			;
		                        		
		                        			Prognosis
		                        			
		                        		
		                        	
4.Application of Preschool Auditory Processing Assessment Scale in children with attention deficit hyperactivity disorder.
Yu-Ying SUN ; Hui-Qin ZHU ; Pan-Ting LIU ; Huan-Xi LIN ; Zheng-Lu XIAO ; Xin-Yue YU ; Jun QIAN ; Xia CHI ; Qin HONG
Chinese Journal of Contemporary Pediatrics 2023;25(8):824-830
		                        		
		                        			OBJECTIVES:
		                        			To investigate the characteristics of auditory processing (AP) in preschool children with attention deficit hyperactivity disorder (ADHD) using Preschool Auditory Processing Assessment Scale (hereafter referred to as "auditory processing scale").
		                        		
		                        			METHODS:
		                        			A total of 41 children with ADHD and 41 typically developing (TD) children were assessed using the auditory processing scale, SNAP-IV rating scale, and Conners' Kiddie Continuous Performance Test (K-CPT). The auditory processing scale score was compared between the TD and ADHD groups. The correlations of the score with SNAP-IV and K-CPT scores were assessed.
		                        		
		                        			RESULTS:
		                        			Compared with the TD group, the ADHD group had significantly higher total score of the auditory processing scale and scores of all dimensions except visual attention (P<0.05). In the children with ADHD, the attention deficit dimension score of the SNAP-IV rating scale was positively correlated with the total score of the auditory processing scale (rs30=0.531, P<0.05; rs27=0.627, P<0.05) as well as the scores of its subdimensions, including auditory decoding (rs=0.628, P<0.05), auditory attention (rs=0.492, P<0.05), and communication (rs=0.399, P<0.05). The hyperactivity-impulsivity dimension score of the SNAP-IV rating scale was positively correlated with the hyperactivity-impulsivity dimension score of the auditory processing scale (rs=0.429, P<0.05). In the children with ADHD, the attention deficit dimension score of the K-CPT was positively correlated with the total score (rs30=0.574, P<0.05; rs27=0.485, P<0.05) and the hyperactivity-impulsivity dimension score (rs=0.602, P<0.05) of the auditory processing scale.
		                        		
		                        			CONCLUSIONS
		                        			Preschool children with ADHD have the risk of AP abnormalities, and the auditory processing scale should be used early for the screening and evaluation of AP abnormalities in children.
		                        		
		                        		
		                        		
		                        			Child, Preschool
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Attention Deficit Disorder with Hyperactivity
		                        			;
		                        		
		                        			Schools
		                        			;
		                        		
		                        			Auditory Perception
		                        			
		                        		
		                        	
5.Specific Mutations in APC, with Prognostic Implications in Metastatic Colorectal Cancer
Huan PENG ; Jun YING ; Jia ZANG ; Hao LU ; Xiaokai ZHAO ; Pengmin YANG ; Xintao WANG ; Jieyi LI ; Ziying GONG ; Daoyun ZHANG ; Zhiguo WANG
Cancer Research and Treatment 2023;55(4):1270-1280
		                        		
		                        			 Purpose:
		                        			Loss-of-function mutations in the adenomatous polyposis coli (APC) gene are common in metastatic colorectal cancer (mCRC). However, the characteristic of APC specific mutations in mCRC is poorly understood. Here, we explored the clinical and molecular characteristics of N-terminal and C-terminal side APC mutations in Chinese patients with mCRC. 
		                        		
		                        			Materials and Methods:
		                        			Hybrid capture-based next-generation sequencing was performed on tumor tissues from 275 mCRC pati-ents to detect mutations in 639 tumor-associated genes. The prognostic value and gene-pathway difference between APC specific mutations in mCRC patients were analyzed. 
		                        		
		                        			Results:
		                        			APC mutations were highly clustered, accounting for 73% of all mCRC patients, and most of them were truncating mutations. The tumor mutation burden of the N-terminal side APC mutations group (n=76) was significantly lower than that of the C-terminal side group (n=123) (p < 0.001), further confirmed by the public database. Survival analysis showed that mCRC patients with N-terminus side APC mutations had longer overall survival than C-terminus side. Tumor gene pathway analysis showed that gene mutations in the RTK/RAS, Wnt and transforming growth factor β signaling pathways of the C-terminal group were significantly higher than those of the N-terminal group (p < 0.05). Additionally, KRAS, AMER1, TGFBR2, and ARID1A driver mutations were more common in patients with C-terminal side APC mutations. 
		                        		
		                        			Conclusion
		                        			APC specific mutations have potential function as mCRC prognostic biomarkers. There are obvious differences in the gene mutation patterns between the C-terminus and N-terminus APC mutations group, which may have certain guiding significance for the subsequent precise treatment of mCRC. 
		                        		
		                        		
		                        		
		                        	
6.Astrocytes in Chronic Pain: Cellular and Molecular Mechanisms.
Neuroscience Bulletin 2023;39(3):425-439
		                        		
		                        			
		                        			Chronic pain is challenging to treat due to the limited therapeutic options and adverse side-effects of therapies. Astrocytes are the most abundant glial cells in the central nervous system and play important roles in different pathological conditions, including chronic pain. Astrocytes regulate nociceptive synaptic transmission and network function via neuron-glia and glia-glia interactions to exaggerate pain signals under chronic pain conditions. It is also becoming clear that astrocytes play active roles in brain regions important for the emotional and memory-related aspects of chronic pain. Therefore, this review presents our current understanding of the roles of astrocytes in chronic pain, how they regulate nociceptive responses, and their cellular and molecular mechanisms of action.
		                        		
		                        		
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Astrocytes/pathology*
		                        			;
		                        		
		                        			Chronic Pain/pathology*
		                        			;
		                        		
		                        			Neuroglia/physiology*
		                        			;
		                        		
		                        			Neurons/physiology*
		                        			;
		                        		
		                        			Synaptic Transmission
		                        			;
		                        		
		                        			Chronic Disease
		                        			
		                        		
		                        	
7.Formation and development of "Xiang thinking" in traditional Chinese medicine.
Zhi-Yong LI ; Shi-Huan TANG ; Bin YANG ; Qing-Qing LI ; Hong-Jun YANG ; Lu-Qi HUANG
China Journal of Chinese Materia Medica 2022;47(22):5991-5996
		                        		
		                        			
		                        			"Xiang thinking" is the main thinking mode in traditional Chinese medicine(TCM) with both philosophical and scientific connotations, and has an important influence on the emergence and development of TCM. This study systematically expounded the philosophical connotation and characteristics of "Xiang thinking", and its application in the construction of TCM theory, clinical syndrome differentiation and treatment, the formation of medicinal properties, and interpretation of efficacy of Chinese medicine. "Xiang thinking" in TCM develops and changes continuously with practical application, and its historical evolution can be summarized into three stages, i.e., "Ying Xiang(corresponding to Xiang)" "Fa Xiang(following Xiang)", and "Bian Xiang(differentiating Xiang)". The understanding of Xiang is based on the means and methods of human observation of things and the backgrounds of the philosophy, science, and development. The result of comparison depends on the depth and breadth of Xiang. In the real world, Xiang is showing new construction characteristics with multiple dimensions and levels. Therefore, this study proposed the thinking of "Bian Xiang", which is expected to provide a thinking approach that can realize the transformation from "Xiang thinking" to scientific research for the exploration and innovative research on life origin in the field of contemporary and TCM.
		                        		
		                        		
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Medicine, Chinese Traditional
		                        			;
		                        		
		                        			Drugs, Chinese Herbal
		                        			
		                        		
		                        	
8.Diagnosis and treatment status of perioperative anemia in patients with gastrointestinal neoplasms: a multi-center study in Hubei Province.
Peng ZHANG ; Cong Qing JIANG ; Zhi Guo XIONG ; Yong Bin ZHENG ; Ying Feng FU ; Xin Ming LI ; Dian Fu PANG ; Xiao Feng LIAO ; Xin TONG ; Huan Ming ZHU ; Zhen Hua YANG ; Guang Wei GONG ; Xiao Ping YIN ; Dong Liang LI ; Hong Jun LI ; Hong Liu CHEN ; Xue Feng JIANG ; Zhi Jun HE ; Yan Jun LU ; Xiao Ming SHUAI ; Jin Bo GAO ; Kai Lin CAI ; Kai Xiong TAO
Chinese Journal of Surgery 2022;60(1):32-38
		                        		
		                        			
		                        			Objective: To investigate the incidence and treatment of perioperative anemia in patients with gastrointestinal neoplasms in Hubei Province. Methods: The clinicopathological data of 7 474 patients with gastrointestinal neoplasms in 62 hospitals in 15 cities (state) of Hubei Province in 2019 were collected in the form of network database. There were 4 749 males and 2 725 females. The median age of the patients was 62 years (range: 17 to 96 years). The hemoglobin value of the first time in hospital and the first day after operation was used as the criterion of preoperative anemia and postoperative anemia. Anemia was defined as male hemoglobin <120 g/L and female hemoglobin <110.0 g/L, mild anemia as 90 to normal, moderate anemia as 60 to <90 g/L, severe anemia as <60 g/L. The t test and χ2 test were used for inter-group comparison. Results: The overall incidence of preoperative anemia was 38.60%(2 885/7 474), and the incidences of mild anemia, moderate anemia and severe anemia were 25.09%(1 875/7 474), 11.37%(850/7 474) and 2.14%(160/7 474), respectively. The overall incidence of postoperative anemia was 61.40%(4 589/7 474). The incidence of mild anemia, moderate anemia and severe anemia were 48.73%(3 642/7 474), 12.20%(912/7 474) and 0.47%(35/7 474), respectively. The proportion of preoperative anemia patients receiving treatment was 26.86% (775/2 885), and the proportion of postoperative anemia patients receiving treatment was 14.93% (685/4 589). The proportions of preoperative anemia patients in grade ⅢA, grade ⅢB, and grade ⅡA hospitals receiving treatment were 26.12% (649/2 485), 32.32% (85/263), and 29.93% (41/137), and the proportions of postoperative anemia patients receiving treatment were 14.61% (592/4 052), 22.05% (73/331), and 9.71% (20/206). The proportion of intraoperative blood transfusion (16.74% (483/2 885) vs. 3.05% (140/4 589), χ²=434.555, P<0.01) and the incidence of postoperative complications (17.78% (513/2 885) vs. 14.08% (646/4 589), χ²=18.553, P<0.01) in the preoperative anemia group were higher than those in the non-anemia group, and the postoperative hospital stay in the preoperative anemia group was longer than that in the non-anemia group ((14.1±7.3) days vs. (13.3±6.2) days, t=5.202, P<0.01). Conclusions: The incidence of perioperative anemia in patients with gastrointestinal neoplasms is high. Preoperative anemia can increase the demand for intraoperative blood transfusion and affect the short-term prognosis of patients. At present, the concept of standardized treatment of perioperative anemia among gastrointestinal surgeons in Hubei Province needs to be improved.
		                        		
		                        		
		                        		
		                        			Adolescent
		                        			;
		                        		
		                        			Adult
		                        			;
		                        		
		                        			Aged
		                        			;
		                        		
		                        			Aged, 80 and over
		                        			;
		                        		
		                        			Anemia/epidemiology*
		                        			;
		                        		
		                        			Blood Transfusion
		                        			;
		                        		
		                        			Female
		                        			;
		                        		
		                        			Gastrointestinal Neoplasms/surgery*
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Length of Stay
		                        			;
		                        		
		                        			Male
		                        			;
		                        		
		                        			Middle Aged
		                        			;
		                        		
		                        			Retrospective Studies
		                        			;
		                        		
		                        			Treatment Outcome
		                        			;
		                        		
		                        			Young Adult
		                        			
		                        		
		                        	
9.Significance of combination of targeted therapy and immunotherapy in conversion therapy of biliary tract cancer.
Zhao Hui TANG ; Jia Lu CHEN ; Shen Yang LIU ; Xiao Peng YU ; Huan Jun TONG ; Zhi Wei QUAN
Chinese Journal of Surgery 2022;60(4):343-350
		                        		
		                        			
		                        			Biliary tract cancer has insidious onset and high degree of malignancy, and radical resection is often impossible when it is diagnosed.Conversion therapy can achieve tumor downgrading, so that patients who were initially unresectable have a chance to achieve R0 resection.However, due to the high heterogeneity and complex immune microenvironment of biliary tract cancer, conversion therapy is still in the stage of active exploration.As a new type of conversion therapy, combination of targeted therapy and immunotherapy is of great significance to effectively improve the efficiency of conversion therapy.Further exploration of combination mechanism and improvement of immune microenvironment are expected to become the future direction of combination of targeted therapy and immunotherapy.
		                        		
		                        		
		                        		
		                        			Antineoplastic Combined Chemotherapy Protocols
		                        			;
		                        		
		                        			Biliary Tract Neoplasms/surgery*
		                        			;
		                        		
		                        			Combined Modality Therapy
		                        			;
		                        		
		                        			Gastrectomy
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Immunotherapy
		                        			;
		                        		
		                        			Tumor Microenvironment
		                        			
		                        		
		                        	
10.Feasibility of a Clinical-Radiomics Model to Predict the Outcomes of Acute Ischemic Stroke
Yiran ZHOU ; Di WU ; Su YAN ; Yan XIE ; Shun ZHANG ; Wenzhi LV ; Yuanyuan QIN ; Yufei LIU ; Chengxia LIU ; Jun LU ; Jia LI ; Hongquan ZHU ; Weiyin Vivian LIU ; Huan LIU ; Guiling ZHANG ; Wenzhen ZHU
Korean Journal of Radiology 2022;23(8):811-820
		                        		
		                        			 Objective:
		                        			To develop a model incorporating radiomic features and clinical factors to accurately predict acute ischemic stroke (AIS) outcomes. 
		                        		
		                        			Materials and Methods:
		                        			Data from 522 AIS patients (382 male [73.2%]; mean age ± standard deviation, 58.9 ± 11.5 years) were randomly divided into the training (n = 311) and validation cohorts (n = 211). According to the modified Rankin Scale (mRS) at 6 months after hospital discharge, prognosis was dichotomized into good (mRS ≤ 2) and poor (mRS > 2); 1310 radiomics features were extracted from diffusion-weighted imaging and apparent diffusion coefficient maps. The minimum redundancy maximum relevance algorithm and the least absolute shrinkage and selection operator logistic regression method were implemented to select the features and establish a radiomics model. Univariable and multivariable logistic regression analyses were performed to identify the clinical factors and construct a clinical model. Ultimately, a multivariable logistic regression analysis incorporating independent clinical factors and radiomics score was implemented to establish the final combined prediction model using a backward step-down selection procedure, and a clinical-radiomics nomogram was developed. The models were evaluated using calibration, receiver operating characteristic (ROC), and decision curve analyses. 
		                        		
		                        			Results:
		                        			Age, sex, stroke history, diabetes, baseline mRS, baseline National Institutes of Health Stroke Scale score, and radiomics score were independent predictors of AIS outcomes. The area under the ROC curve of the clinical-radiomics model was 0.868 (95% confidence interval, 0.825–0.910) in the training cohort and 0.890 (0.844–0.936) in the validation cohort, which was significantly larger than that of the clinical or radiomics models. The clinical radiomics nomogram was well calibrated (p > 0.05). The decision curve analysis indicated its clinical usefulness. 
		                        		
		                        			Conclusion
		                        			The clinical-radiomics model outperformed individual clinical or radiomics models and achieved satisfactory performance in predicting AIS outcomes. 
		                        		
		                        		
		                        		
		                        	
            
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