1.Quality Evaluation of Gegen Qinlian Tablets Based on HPLC Multi-component Quantification Combined with Chemical Pattern Recognition and TOPSIS Analysis
Ping QIN ; Yingying LU ; Wenming ZHANG ; Zifang FENG ; Lihong GU ; Chenjie XIA ; Minmin HU ; Xiaowei CHEN ; Zhenhua BIAN ; Xiwan LU
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(6):217-224
ObjectiveTo establish a high-performance liquid chromatography(HPLC) for the quantitative analysis of multiple components in Gegen Qinlian tablets, and to comprehensively evaluate the quality of samples from different manufacturers by integrating chemical pattern recognition and technique for order preference by similarity to ideal solution(TOPSIS), in order to provide a reference basis for quality evaluation and control of Gegen Qinlian tablets. MethodsHPLC was employed to determine the contents of 10 components in 28 batches of Gegen Qinlian tablets collected from 6 manufacturers, and taking the detection results as variables, SIMCA 14.1 and SPSS 26.0 were employed for cluster analysis(CA), principal component analysis(PCA), and orthogonal partial least squares-discriminant analysis(OPLS-DA) to identify key components affecting the quality. Then, TOPSIS analysis was employed to rank the quality of Gegen Qinlian tablets from the 6 manufacturers and establish a comprehensive quality evaluation method. ResultsA quantitative method for Gegen Qinlian tablets was established. After methodological validation, the method was found to be stable and reliable, and could be used for the quantitative analysis of this preparation. The contents of 3′-hydroxy puerarin, puerarin, 3′-methoxy puerarin, daidzein, coptisine hydrochloride, epiberberine, jatrorrhizine hydrochloride, berberine hydrochloride, palmatine hydrochloride and baicalin in 28 batches of samples were 3.58-7.35, 24.88-42.32, 4.20-9.36, 4.33-7.60, 2.52-6.44, 0.93-4.10, 0.58-3.05, 10.68-22.92, 0.82-4.82, 11.73-60.16 mg·g-1, respectively. Among them, puerarin, berberine hydrochloride and baicalin all met the limit requirements for this preparation specified in the 2025 edition of the Pharmacopoeia of the People's Republic of China. CA and PCA clustered the 28 batches of samples into 5 categories, PCA extracted 2 principal components with a cumulative variance contribution rate of 90.588%, and OPLS-DA screened out 4 differential markers with variable importance in the projection(VIP) values>1.0, namely baicalin, 3′-hydroxy puerarin, coptisine hydrochloride and palmatine hydrochloride, which might be the main components affecting the quality of Gegen Qinlian tablets. TOPSIS analysis showed that the comprehensive score of each evaluation index(Ci) values of different manufacturers were different. Among them, the Ci of manufacturer B was ranked higher, indicating potentially superior quality, while the Ci of manufacturer A was ranked lower, suggesting potentially inferior quality. ConclusionThis study establishes a quantitative method for Gegen Qinlian tablets, and the content uniformity of the same manufacturer is good, while there are differences in the contents of active components among different manufacturers. Through the chemical pattern recognition analysis, it is found that the content differences of Gegen Qinlian tablets may be related to baicalin, 3′-hydroxy puerarin, coptisine hydrochloride and palmatine hydrochloride.
2.Cost-effectiveness of Fractional Flow Reserve Versus Intravascular Ultrasound to Guide Percutaneous Coronary Intervention: Results From the FLAVOUR Study
Doyeon HWANG ; Hea-Lim KIM ; Jane KO ; HyunJin CHOI ; Hanna JEONG ; Sun-ae JANG ; Xinyang HU ; Jeehoon KANG ; Jinlong ZHANG ; Jun JIANG ; Joo-Yong HAHN ; Chang-Wook NAM ; Joon-Hyung DOH ; Bong-Ki LEE ; Weon KIM ; Jinyu HUANG ; Fan JIANG ; Hao ZHOU ; Peng CHEN ; Lijiang TANG ; Wenbing JIANG ; Xiaomin CHEN ; Wenming HE ; Sung Gyun AHN ; Ung KIM ; You-Jeong KI ; Eun-Seok SHIN ; Hyo-Soo KIM ; Seung-Jea TAHK ; JianAn WANG ; Tae-Jin LEE ; Bon-Kwon KOO ;
Korean Circulation Journal 2025;55(1):34-46
Background and Objectives:
The Fractional Flow Reserve and Intravascular UltrasoundGuided Intervention Strategy for Clinical Outcomes in Patients with Intermediate Stenosis (FLAVOUR) trial demonstrated non-inferiority of fractional flow reserve (FFR)-guided percutaneous coronary intervention (PCI) compared with intravascular ultrasound (IVUS)-guided PCI. We sought to investigate the cost-effectiveness of FFR-guided PCI compared to IVUS-guided PCI in Korea.
Methods:
A 2-part cost-effectiveness model, composed of a short-term decision tree model and a long-term Markov model, was developed for patients who underwent PCI to treat intermediate stenosis (40% to 70% stenosis by visual estimation on coronary angiography).The lifetime healthcare costs and quality-adjusted life-years (QALYs) were estimated from the healthcare system perspective. Transition probabilities were mainly referred from the FLAVOUR trial, and healthcare costs were mainly obtained through analysis of Korean National Health Insurance claims data. Health utilities were mainly obtained from the Seattle Angina Questionnaire responses of FLAVOUR trial participants mapped to EQ-5D.
Results:
From the Korean healthcare system perspective, the base-case analysis showed that FFR-guided PCI was 2,451 U.S. dollar lower in lifetime healthcare costs and 0.178 higher in QALYs compared to IVUS-guided PCI. FFR-guided PCI remained more likely to be cost-effective over a wide range of willingness-to-pay thresholds in the probabilistic sensitivity analysis.
Conclusions
Based on the results from the FLAVOUR trial, FFR-guided PCI is projected to decrease lifetime healthcare costs and increase QALYs compared with IVUS-guided PCI in intermediate coronary lesion, and it is a dominant strategy in Korea.
3.Low tube voltage and low dose contrast agents combined with artificial intelligence iterative reconstruction in upper limb CT angiography for displaying arteriovenous fistula
Beili SHOU ; Jing LI ; Wenming ZHANG ; Bin CHEN ; Yueqiao ZHANG ; Hongjie HU
Chinese Journal of Medical Imaging Technology 2025;41(4):543-547
Objective To investigate the value of low tube voltage and low dose contrast agents combined with artificial intelligence iterative reconstruction(AIIR)in upper limb CT angiography(CTA)for displaying arteriovenous fistula(AVF).Methods Totally 65 patients with chronic renal failure and suspected AVF stenosis who underwent upper limb CTA were prospectively enrolled and randomly divided into conventional-dose group(CD group,n=30)and low-dose group(LD group,n=35).In CD group,CTA was acquired using conventional tube voltage(100 kVp)and contrast agents dosage(1.0 ml/kg body mass),and conventional hybrid iterative reconstruction(HIR)was used to reconstruct images(group A),while in LD group,CTA was collected using 80 kVp and contrast agent dosage of 0.6 ml/kg body mass,and images were reconstructed with HIR(group B)and AIIR(group C),respectively.Then subjective and objective assessment of imaging quality were performed,respectively,the results were compared among groups,while the radiation dose and dosage of contrast agents were compared between CD and LD groups.Results No significant difference of subjective score of imaging quality nor confidence for diagnosing AVF stenosis was found between group A and group C(both P>0.017),and all the above scores were higher than those in group B(all P<0.017).Signal-to-noise ratio(SNR)and contrast-to-noise ratio(CNR)of subclavian artery,brachial artery and radial artery in group C were all higher than those in groups A and B(all P<0.017),while no significant difference of SNR nor CNR was found between group A and B(all P>0.017).The volume CT dose index,dose length product and dosage of contrast agent in LD group were all lower than those in CD group(all P<0.001).Conclusion Low tube voltage and low dose contrast agents combined with AIIR in upper limb CTA for displaying AVF could reduce radiation dose and contrast agents dosage under the condition of ensuring imaging quality.
4.Development, reliability, and validity of a treatment-related quality of life scale for Chinese patients with multiple myeloma
Chunyan SUN ; Zhen CAI ; Bing CHEN ; Lijuan CHEN ; Wenming CHEN ; Kaiyang DING ; Juan DU ; Rong FU ; Chengcheng FU ; Da GAO ; Guangxun GAO ; Yanjuan HE ; Jian HOU ; Ming JIANG ; Fei LI ; Jian LI ; Juan LI ; Zhenyu LI ; Aijun LIAO ; Jing LIU ; Jun LUO ; Jianmin LUO ; Yanping MA ; Jianqing MI ; Ting NIU ; Hongling PENG ; Yongping SONG ; Luqun WANG ; Rong ZHAN ; Xi ZHANG ; Yu HU
Chinese Journal of Hematology 2025;46(8):713-721
Objective:To develop a treatment-related quality of life scale for Chinese patients with multiple myeloma (MM) and to test its reliability and validity.Methods:The initial scale was constructed through a literature search, Delphi expert correspondence, and cognitive testing. This study conducted a preliminary survey of 379 patients with MM and a formal survey of 865 patients from the hematology departments of 155 hospitals nationwide from February 2024 to March 2024. The final scale was obtained after conducting item analysis and reliability and validity tests on the initial scale.Results:The constructed scale contains 36 items covering six domains: physiological, psychological, social, treatment side effects, general health, and others. In the preliminary survey, the Cronbach’s alpha coefficient of each item ranged from 0.597 to 0.939, and the test-retest reliability was 0.747 ( P<0.001). Exploratory factor analysis extracted eight common factors with a cumulative variance contribution of 60.058%. In the formal survey, the Cronbach’s alpha coefficient of each item ranged from 0.484 to 0.930, and the test-retest reliability was 0.835 ( P<0.001). Confirmatory factor analysis revealed a comparative fit index of 0.750, a root-mean-square error of approximation of 0.090, and a root-mean-square residual of 0.067. Conclusion:The treatment-related quality of life scale for Chinese patients with MM designed in this study exhibited good reliability and validity, reflecting the impact of treatment on the quality of life of patients. This scale can provide a reference to clinicians for assessing the disease status of patients.
5.Tiaowei Jiannao acupuncture for post-ischemic stroke insomnia: a randomized controlled trial.
Run ZHANG ; Xinwang CHEN ; Mengyu WANG ; Wenming CHU ; Lihua WU ; Jing GAO ; Peidong LIU ; Ce SHI ; Liyuan LIU ; Bingzhen LI ; Miaomiao JI ; Yayong HE
Chinese Acupuncture & Moxibustion 2025;45(10):1405-1413
OBJECTIVE:
To observe the efficacy and safety of Tiaowei Jiannao acupuncture (acupuncture for regulating defensive qi and nourishing brain) for post-ischemic stroke insomnia (PISI).
METHODS:
A total of 96 patients with PISI were randomized into an acupuncture group (32 cases, 1 case was excluded), a medication group (32 cases, 1 case dropped out, 1 case was excluded) and a sham-acupuncture group (32 cases, 1 case dropped out, 1 case was excluded). In the acupuncture group, Tiaowei Jiannao acupuncture was applied at bilateral Shenmai (BL62), Zhaohai (KI6), Hegu (LI4), Taichong (LR3), and Baihui (GV20), Sishencong (EX-HN1), Yintang (GV24+), Shenting (GV24), once a day, 1-day interval was taken after 6-day treatment, for 3 weeks totally. In the medication group, eszopiclone tablet was given orally, 1-3 mg a time, once a day for 3 weeks. In the sham-acupuncture group, non-invasive sham acupuncture was applied, the acupoint selection, frequency and course of treatment were the same as the acupuncture group. Before treatment, after 2,3 weeks of treatment, the scores of Pittsburgh sleep quality index (PSQI), self-rating sleep scale (SRSS), National Institutes of Health Stroke scale (NIHSS), Hamilton depression scale-17 (HAMD-17) were observed; before and after treatment, the sleep parameters were recorded using polysomnography (PSG); and the efficacy and safety were evaluated after treatment in the 3 groups.
RESULTS:
After 2,3 weeks of treatment, the scores of PSQI, HAMD-17 and SRSS in the acupuncture group and the medication group, as well as the SRSS scores in the sham-acupuncture group were decreased compared with those before treatment (P<0.05); after 2 weeks of treatment, the NIHSS score in the acupuncture group was decreased compared with that before treatment (P<0.05); after 3 weeks of treatment, the NIHSS scores in the acupuncture group, the medication group and the sham-acupuncture group were decreased compared with those before treatment (P<0.05). After 3 weeks of treatment, the scores of PSQI, SRSS, HAMD-17 and NIHSS in the acupuncture group and the medication group, as well as the NIHSS score in the sham-acupuncture group were decreased compared with those after 2 weeks of treatment (P<0.05). After 2,3 weeks of treatment, the scores of PSQI, SRSS and HAMD-17 in the acupuncture group and the medication group were lower than those in the sham-acupuncture group (P<0.05), the NIHSS scores in the acupuncture group were lower than those in the medication group and the sham-acupuncture group (P<0.05); after 3 weeks of treatment, HAMD-17 score in the acupuncture group was lower than that in the medication group (P<0.05), the NIHSS score in the medication group was lower than that in the sham-acupuncture group (P<0.05). Compared before treatment, after treatment, the total sleep time was prolonged (P<0.05), the wake after sleep onset, sleep latency, and non-rapid eye movement (NREM) sleep latency were shortened (P<0.05), the sleep efficiency was improved (P<0.05), the number of awakenings was reduced (P<0.05), the percentage of rapid eye movement (REM%) and the percentage of NREM stage 1 (N1%) were decreased (P<0.05), the percentage of NREM stage 2 (N2%) and the percentage of NREM stage 3 (N3%) were increased (P<0.05) in the acupuncture group and the medication group; the sleep latency was shortened in the sham-acupuncture group (P<0.05). After treatment, the PSG indexes in the acupuncture group and the medication group were superior to those in the sham-acupuncture group (P<0.05); in the acupuncture group, the number of awakenings was less than that in the medication group (P<0.05), the REM% and N1% were lower than those in the medication group (P<0.05), the N2% and N3% were higher than those in the medication group (P<0.05). The total effective rate were 93.5% (29/31) and 90.0% (27/30) in the acupuncture group and the medication group respectively, which were higher than 10.0% (3/30) in the sham-acupuncture group (P<0.05). There was no serious adverse events in any of the 3 groups.
CONCLUSION
Tiaowei Jiannao acupuncture improves the insomnia symptoms in patients with ischemic stroke, improves the quality of sleep, increases the deep sleep, promotes the recovery of neurological function, and relieves the depression. It is effective and safe for the treatment of PISI.
Humans
;
Acupuncture Therapy
;
Male
;
Sleep Initiation and Maintenance Disorders/physiopathology*
;
Female
;
Middle Aged
;
Aged
;
Acupuncture Points
;
Treatment Outcome
;
Adult
;
Ischemic Stroke/complications*
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Stroke/complications*
;
Sleep
6.Ruminations on the influence of "Imperial Han Medicine" on Hu Xishu's academic thinking on typhoid fever
Ningqian LIU ; Qingxuan FAN ; Yiyao CHEN ; Wenming YI
International Journal of Traditional Chinese Medicine 2025;47(2):145-149
As a classic work of Japanese Chinese medicine, Huang Han Yi Xue, with its ancient prescription school theories and Western medical principles, influenced the formation of Hu Xishu's academic thinking on cold-induced disease. This article combined Huang Han Yi Xue with the recordings and manuscripts of Hu's existing lectures to show another perspective on the flow of Hu's academic thought on cold-induced disease. It is considered that the influence of Huang Han Yi Xue made Hu different from the traditional typhoid scholars. Hu abandoned the annotations of Huang Di Nei Jing, emphasized the relativity of prescriptions and syndrome, focused on the state of Mingxuan reaction, paid attention to food, water and blood stasis, explained the essence of disease with physiological and anatomical knowledge, innovated the cognition of the six meridians and the eight compendiums, and formed a new theoretical system.
7.Clinical Efficacy of Shen Wu Yizhi Capsule in the Treatment of Post-Stroke Cognitive Impairment and Its Network Pharmacological Mechanism
Can GUO ; Wenming BAN ; Jiang DU ; Lili ZHAO ; Yuanyuan SUN ; Yue SUN ; Jianing CHEN
Journal of Guangzhou University of Traditional Chinese Medicine 2025;42(2):328-336
Objective To investigate the therapeutic mechanism of Shen Wu Yizhi Capsule in the treatment of post-stroke cognitive impairment(PSCI)by using network pharmacology methods and clinical trial validation.Methods A prospective trial was carried out in 90 cases of patients with PSCI admitted to Taihe Traditional Chinese Medicine Hospital Affiliated to Anhui University of Chinese Medicine from August 2022 to February 2024.The patients were randomly divided into the control group and the trial group by random number table method,with 45 cases in each group.The control group was treated with conventional treatment for PSCI,and the trial group was treated with Shen Wu Yizhi Capsule orally on the basis of treatment for the control group.The treatment course for the two groups covered 28 days.The changes of Mini-Mental State Examination(MMSE)score,Montreal Cognitive Assessment(MoCA)score,and the serum levels of inflammatory factors such as tumor necrosis factor α(TNF-α)and interleukin 6(IL-6)in the patients of the two groups were observed before and after treatment.Moreover,the incidences of adverse events in the two groups were recorded,thus to evaluate the safety of the treatment regimens in the two groups.And then the network pharmacological research was performed.TCMSP and literature review were used to obtain the active ingredients of Shen Wu Yizhi Capsule,GeneCards and other databases were used to obtain the PSCI disease targets,and the common targets were inputted into the STRING database to construct the PPI network.Cytoscape 3.9.0 was used to construct the network diagram of Shen Wu Yizhi Capsule-PSCI-targets,DAVID was used to perform GO and KEGG pathway enrichment analysis,and then molecular docking was used to verify the binding activity.Results(1)The results of clinical trial showed that after 28 days of treatment,the MMSE and MoCA scores of patients in the two groups were increased compared with those before treatment(P<0.05),and the increase of the scores in the trial group was significantly superior to that in the control group(P<0.05).The serum levels of TNF-α and IL-6 were decreased compared with those before treatment(P<0.05),and the decrease in the trial group was significantly superior to that in the control group(P<0.05).During the trial,both groups of patients did not show obvious adverse reactions,with high safety.(2)The network pharmacological research of Shen Wu Yizhi Capsule yielded 92 active ingredients,803 targets,5 209 disease targets and 556 intersection targets.The core targets were AKT1,TNF,IL-6,TP53 and IL-1B,and the key compounds were deoxyharringtonine,senkyunone and genkwanin.The GO enrichment analysis obtained 1 812 GO entries,of which 154 entries were related with cellular component(CC),1 332 entries were related with biological process(BP),and 326 entries were related with molecular function(MF).The KEGG pathway enrichment analysis yielded 195 signaling pathways.The molecular docking results showed that the key compounds of Shen Wu Yizhi Capsule had good binding activities with the core targets.Conclusion The clinical efficacy of Shen Wu Yizhi Capsule in the treatment of PSCI is remarkable,and its therapeutic mechanism is probably related with multiple components through the signaling pathways such as AKT1,TNF,and IL-6.The results will provide reference for the in-depth study of Shen Wu Yizhi Capsule.
8.Correlation between Kayser-Fleischer ring grading and cognitive function in Wilson’s disease
Wei HE ; Yulong YANG ; Wenming YANG ; Yue YANG ; Chen HU ; Hui LI ; Peng HUANG
Journal of Clinical Hepatology 2025;41(6):1150-1155
ObjectiveTo investigate the correlation with cognitive function based on a new Kayser-Fleischer ring (K-F ring) grading method in Wilson’s disease (WD). MethodsA total of 136 WD patients who were hospitalized in Encephalopathy Center, The First Affiliated Hospital of Anhui University of Chinese Medicine, from April 2022 to October 2023 were enrolled. All subjects underwent slit lamp examination, and the grade of K-F ring was determined according to the shape and extent of copper deposition in the cornea, whether it formed a ring or not, and whether there was a sunflower-like cloudy change in the lens. The patients were instructed to complete UWDRS, MoCA, and MMSE scale assessments, and these indicators were compared between patients with different K-F ring grades. An analysis of variance was used for comparison of normally distributed continuous data between multiple groups, and the least significant difference t-test (homogeneity of variance) or the Dunnett’s T3 test (heterogeneity of variance) was used for further multiple comparisons; the Kruskal-Wallis H test was used for comparison of non-normally distributed continuous data between multiple groups; the chi-square test was used for comparison of categorical data between groups. The Spearman correlation analysis was used to investigate the correlation of K-F ring grade with UWDRS, MoCA, and MMSE scores. ResultsAmong the 136 patients with WD, there were 40 patients with grade 4 K-F ring, accounting for the highest proportion of 29.4%, and 14 patients with grade 0 K-F ring, accounting for the lowest proportion of 10.3%, and there were 22 patients with grade 1 K-F ring (16.2%), 19 with grade 2 K-F ring (14%), 25 with grade 3 K-F ring (18.4%), and 16 with grade 5 K-F ring (11.7%). According to the different grades of K-F ring, there was a significant increase in UWDRS score (F=22.61, P<0.001) and significant reductions in MoCA and MMSE scores (F=16.40 and 13.80, both P<0.001). The Spearman correlation analysis showed that K-F ring grade was positively correlated with UWDRS score (r=0.67, P<0.01) and was negatively correlated with MoCA and MMSE scores in WD patients (r=-0.59 and -0.57, both P<0.01). ConclusionThe new K-F ring grading method can determine disease severity in WD patients to a certain degree and partially reflect cognitive function and activities of daily living in such patients.
9.Graph Neural Networks and Multimodal DTI Features for Schizophrenia Classification: Insights from Brain Network Analysis and Gene Expression.
Jingjing GAO ; Heping TANG ; Zhengning WANG ; Yanling LI ; Na LUO ; Ming SONG ; Sangma XIE ; Weiyang SHI ; Hao YAN ; Lin LU ; Jun YAN ; Peng LI ; Yuqing SONG ; Jun CHEN ; Yunchun CHEN ; Huaning WANG ; Wenming LIU ; Zhigang LI ; Hua GUO ; Ping WAN ; Luxian LV ; Yongfeng YANG ; Huiling WANG ; Hongxing ZHANG ; Huawang WU ; Yuping NING ; Dai ZHANG ; Tianzi JIANG
Neuroscience Bulletin 2025;41(6):933-950
Schizophrenia (SZ) stands as a severe psychiatric disorder. This study applied diffusion tensor imaging (DTI) data in conjunction with graph neural networks to distinguish SZ patients from normal controls (NCs) and showcases the superior performance of a graph neural network integrating combined fractional anisotropy and fiber number brain network features, achieving an accuracy of 73.79% in distinguishing SZ patients from NCs. Beyond mere discrimination, our study delved deeper into the advantages of utilizing white matter brain network features for identifying SZ patients through interpretable model analysis and gene expression analysis. These analyses uncovered intricate interrelationships between brain imaging markers and genetic biomarkers, providing novel insights into the neuropathological basis of SZ. In summary, our findings underscore the potential of graph neural networks applied to multimodal DTI data for enhancing SZ detection through an integrated analysis of neuroimaging and genetic features.
Humans
;
Schizophrenia/pathology*
;
Diffusion Tensor Imaging/methods*
;
Male
;
Female
;
Adult
;
Brain/metabolism*
;
Young Adult
;
Middle Aged
;
White Matter/pathology*
;
Gene Expression
;
Nerve Net/diagnostic imaging*
;
Graph Neural Networks
10.Cost-effectiveness of Fractional Flow Reserve Versus Intravascular Ultrasound to Guide Percutaneous Coronary Intervention: Results From the FLAVOUR Study
Doyeon HWANG ; Hea-Lim KIM ; Jane KO ; HyunJin CHOI ; Hanna JEONG ; Sun-ae JANG ; Xinyang HU ; Jeehoon KANG ; Jinlong ZHANG ; Jun JIANG ; Joo-Yong HAHN ; Chang-Wook NAM ; Joon-Hyung DOH ; Bong-Ki LEE ; Weon KIM ; Jinyu HUANG ; Fan JIANG ; Hao ZHOU ; Peng CHEN ; Lijiang TANG ; Wenbing JIANG ; Xiaomin CHEN ; Wenming HE ; Sung Gyun AHN ; Ung KIM ; You-Jeong KI ; Eun-Seok SHIN ; Hyo-Soo KIM ; Seung-Jea TAHK ; JianAn WANG ; Tae-Jin LEE ; Bon-Kwon KOO ;
Korean Circulation Journal 2025;55(1):34-46
Background and Objectives:
The Fractional Flow Reserve and Intravascular UltrasoundGuided Intervention Strategy for Clinical Outcomes in Patients with Intermediate Stenosis (FLAVOUR) trial demonstrated non-inferiority of fractional flow reserve (FFR)-guided percutaneous coronary intervention (PCI) compared with intravascular ultrasound (IVUS)-guided PCI. We sought to investigate the cost-effectiveness of FFR-guided PCI compared to IVUS-guided PCI in Korea.
Methods:
A 2-part cost-effectiveness model, composed of a short-term decision tree model and a long-term Markov model, was developed for patients who underwent PCI to treat intermediate stenosis (40% to 70% stenosis by visual estimation on coronary angiography).The lifetime healthcare costs and quality-adjusted life-years (QALYs) were estimated from the healthcare system perspective. Transition probabilities were mainly referred from the FLAVOUR trial, and healthcare costs were mainly obtained through analysis of Korean National Health Insurance claims data. Health utilities were mainly obtained from the Seattle Angina Questionnaire responses of FLAVOUR trial participants mapped to EQ-5D.
Results:
From the Korean healthcare system perspective, the base-case analysis showed that FFR-guided PCI was 2,451 U.S. dollar lower in lifetime healthcare costs and 0.178 higher in QALYs compared to IVUS-guided PCI. FFR-guided PCI remained more likely to be cost-effective over a wide range of willingness-to-pay thresholds in the probabilistic sensitivity analysis.
Conclusions
Based on the results from the FLAVOUR trial, FFR-guided PCI is projected to decrease lifetime healthcare costs and increase QALYs compared with IVUS-guided PCI in intermediate coronary lesion, and it is a dominant strategy in Korea.

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