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Duan X, Li H, Chen P, Sun T, Kuang D, Lu H, Qiao B, Fan Z, Ren Z, Han X. Transcatheter arterial chemoembolization using CalliSpheres beads loaded with arsenic trioxide for unresectable large or huge hepatocellular carcinoma: a prospective study. Eur Radiol 2024; 34:1258-1267. [PMID: 37581654 DOI: 10.1007/s00330-023-10097-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 05/22/2023] [Accepted: 06/25/2023] [Indexed: 08/16/2023]
Abstract
OBJECTIVES To determine the safety and efficacy of transcatheter arterial chemoembolization with CalliSpheres® beads loaded with arsenic trioxide (CBATO-TACE) in the first-line treatment of patients with large (5 cm ≤ maximum diameter < 10 cm) or huge (maximum diameter ≥ 10 cm) hepatocellular carcinoma (HCC). METHODS Patients were randomly allocated to the CBATO-TACE group and the conventional transcatheter arterial chemoembolization (cTACE) group. The primary endpoint was progression-free survival (PFS). The secondary endpoint was overall survival (OS), treatment response, and treatment-related adverse events (TRAEs). The extrahepatic collateral arteries, liver function, and liver fibrosis after the first TACE were also evaluated. RESULTS From September 2018 to September 2020, a total of 207 patients who underwent TACE were consecutively enrolled in this study. The median PFS was 9.5 months (range: 8.0 - 11.0) in the CBATO group, which was significantly longer than that in the cTACE group (6.0 months, range: 4.0-6.0) (p < 0.0001). Patients in the CBATO group had a median OS of 22 months (range: 20.0 - 27.0) compared with 16 months (range: 15.0 - 20.0) in the cTACE group (p = 0.0084). The most common TRAEs were fever (p = 0.043), and nausea and vomiting (p = 0.002), which were more observed in the cTACE group. In addition, the progressive disease time, pulmonary metastasis rate (p = 0.01), the mean number of extrahepatic collateral arteries (p = 0.01), and average number of TACE sessions (p = 0.025) were significantly decreased in the CBATO group. CONCLUSIONS CBATO-TACE achieved better therapeutic outcomes and similar safety profile compared to cTACE in large or huge HCC patients. Furthermore, CBATO-TACE was able to reduce extrahepatic collateral arteries production and extrahepatic lung metastasis. CLINICAL RELEVANCE STATEMENT Our study showed that CalliSpheres® beads loaded with arsenic trioxide (CBATO-TACE) were effective and safe for the treatment of large and giant HCC. In addition, CBATO-TACE can reduce lateral hepatic branch artery formation and extrahepatic pulmonary metastasis, which provides a new treatment approach for unresectable HCC. KEY POINTS • We compare long-term efficacy and safety of transcatheter arterial chemoembolization with CalliSpheres® beads loaded with arsenic trioxide (CBATO-TACE) and conventional transcatheter arterial chemoembolization (cTACE) in patients with large (5 cm ≤ maximum diameter < 10 cm) or huge HCC (maximum diameter ≥ 10 cm). • Compared with cTACE, CBATO-TACE significantly improved therapeutic outcomes, overall survival, and progression-free survival in patients with large or huge HCC. The safety assessment suggested that CBATO-TACE is a safe treatment that improves the quality of life and has good treatment adherence.
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Affiliation(s)
- Xuhua Duan
- Department of Interventional Radiology, The First Affiliated Hospital, Zhengzhou University, No. 1, East Jian She Road, Zhengzhou, 450052, Henan Province, People's Republic of China
| | - Hao Li
- Department of Interventional Radiology, The First Affiliated Hospital, Zhengzhou University, No. 1, East Jian She Road, Zhengzhou, 450052, Henan Province, People's Republic of China
| | - Pengfei Chen
- Department of Interventional Radiology, The First Affiliated Hospital, Zhengzhou University, No. 1, East Jian She Road, Zhengzhou, 450052, Henan Province, People's Republic of China
| | - Tao Sun
- Department of Hepatobiliary Surgery, The First Affiliated Hospital, Zhengzhou University, No. 1, East Jian She Road, Zhengzhou, 450052, Henan Province, People's Republic of China
| | - Donglin Kuang
- Department of Interventional Radiology, The First Affiliated Hospital, Zhengzhou University, No. 1, East Jian She Road, Zhengzhou, 450052, Henan Province, People's Republic of China
| | - Huibin Lu
- Department of Interventional Radiology, The First Affiliated Hospital, Zhengzhou University, No. 1, East Jian She Road, Zhengzhou, 450052, Henan Province, People's Republic of China
| | - Bingbing Qiao
- Department of Hepatobiliary Surgery, The First Affiliated Hospital, Zhengzhou University, No. 1, East Jian She Road, Zhengzhou, 450052, Henan Province, People's Republic of China
| | - Zhengjun Fan
- Department of Hepatobiliary Surgery, The First Affiliated Hospital, Zhengzhou University, No. 1, East Jian She Road, Zhengzhou, 450052, Henan Province, People's Republic of China
| | - Zhuangjian Ren
- Department of Interventional Radiology, The First Affiliated Hospital, Zhengzhou University, No. 1, East Jian She Road, Zhengzhou, 450052, Henan Province, People's Republic of China.
| | - Xinwei Han
- Department of Interventional Radiology, The First Affiliated Hospital, Zhengzhou University, No. 1, East Jian She Road, Zhengzhou, 450052, Henan Province, People's Republic of China.
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Li H, Liang C, Kuang D, Huang G, Zhang M, Chen P, Zheng Q, Xu W, Ren J, Han X, Duan X. The impact of drug-eluting bead (vs. conventional) transarterial chemoembolization on hepatic fibrosis in treating intermediate or advanced hepatocellular carcinoma. Cancer Biol Ther 2023; 24:2166335. [PMID: 36751709 PMCID: PMC9928450 DOI: 10.1080/15384047.2023.2166335] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 11/22/2022] [Accepted: 12/15/2022] [Indexed: 02/09/2023] Open
Abstract
OBJECTIVE Limited studies have reported the impact of drug-eluting bead transarterial chemoembolization (DEB-TACE) on hepatic fibrosis in hepatocellular carcinoma (HCC). This study evaluated multiple hepatic fibrosis indicators, aiming to comprehensively compare the influence of DEB-TACE and conventional transarterial chemoembolization (cTACE) on hepatic fibrosis in treating HCC patients. METHODS Intermediate/advanced HCC patients (N = 121) were divided into the DEB-TACE group (n = 62) and the cTACE group (n = 59) based on their chosen treatment. Serum hyaluronic acid (HA), pro-collagen type-III (PC-III), collagen type-IV (IV-C), and laminin (LN) were detected; aminotransferase to platelet ratio index (APRI) and fibrosis index based on the four factors (FIB-4) were calculated; liver stiffness measurement (LSM) was assessed by real-time shear wave elastography. RESULTS HA, PC-III, IV-C, and LN at 1 month after the second TACE and at 12 months after the first TACE were all decreased in DEB-TACE group compared with cTACE group (all P < .050). Then, APRI, FIB-4, and LSM were further assessed, which also showed a decreasing trend at aforementioned timepoints in DEB-TACE group compared with cTACE group (all P < .050). Additionally, the multivariate logistic regression analysis revealed that DEB-TACE (vs. cTACE) was independently associated with reduced occurrence of severe hepatic fibrosis at 12 months (OR = 0.215, 95%CI: 0.058-0.802, P = .022). Concerning the liver function indexes, alanine aminotransferase, aspartate aminotransferase, and total bilirubin after treatment were not different between the two groups (all P > .050). CONCLUSION DEB-TACE displays attenuated hepatic fibrosis progression and noninferior tolerance compared to cTACE in treating intermediate- or advanced-stage HCC patients.
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Affiliation(s)
- Hao Li
- Department of Interventional Radiology, the First Affiliated Hospital, Zhengzhou University, Zhengzhou, China
| | - Chao Liang
- Department of Interventional Radiology, the First Affiliated Hospital, Zhengzhou University, Zhengzhou, China
| | - Donglin Kuang
- Department of Interventional Radiology, the First Affiliated Hospital, Zhengzhou University, Zhengzhou, China
| | - Guohao Huang
- Department of Interventional Radiology, the First Affiliated Hospital, Zhengzhou University, Zhengzhou, China
| | - Mengfan Zhang
- Department of Interventional Radiology, the First Affiliated Hospital, Zhengzhou University, Zhengzhou, China
| | - Pengfei Chen
- Department of Interventional Radiology, the First Affiliated Hospital, Zhengzhou University, Zhengzhou, China
| | - Qingzhu Zheng
- Department of Interventional Radiology, the First Affiliated Hospital, Zhengzhou University, Zhengzhou, China
| | - Wenze Xu
- Department of Interventional Radiology, the First Affiliated Hospital, Zhengzhou University, Zhengzhou, China
| | - Jianzhuang Ren
- Department of Interventional Radiology, the First Affiliated Hospital, Zhengzhou University, Zhengzhou, China
| | - Xinwei Han
- Department of Interventional Radiology, the First Affiliated Hospital, Zhengzhou University, Zhengzhou, China
| | - Xuhua Duan
- Department of Interventional Radiology, the First Affiliated Hospital, Zhengzhou University, Zhengzhou, China
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Kuang D, Peng Q, Gao Y, Wang L, Yang XS. [Epidemiological characteristics and survival analysis of reported pneumoconiosis in Chengdu, 2012-2021]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2023; 41:922-926. [PMID: 38195229 DOI: 10.3760/cma.j.cn121094-20221008-00466] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/11/2024]
Abstract
Objective: To explore theepidemiological characteristics and analyse the survival of pneumoconiosis in Chengdu from 2011 to 2021, providing scientific evidence for further prevention and control. Methods: In April 2022, the pneumoconiosis report card of Chengdu from 2012 to 2021 and survival data were collected from the China Disease Control and prevention information system and the occupational pneumoconiosis follow-up survey project.The data of the report card was reorganized and analyzed by R4.4.0 software. Chi-square test was used to compare the case composition ratio between groups. The annual trend of the number of new pneumo coniosis cases was analyzed by linear regression model Kaplan-Meier method was used for survival analysis and log-rank test was used for comparison of survival curves between groups. Results: 816 cases of pneumoconiosis were reported in Chengdu from 2011 to 2021, including 522 cases of stage Ⅰ (63.97%, 522/816), 148 cases of stage Ⅱ (18.14%, 148/816) and 146 cases of stage Ⅲ pneumoconiosis (17.89146/816) ; There were 596 cases of silicosis (73.04%, 596/816), 143 cases of coal worker's pneumoconiosis (17.52%, 143/816). New onset pneumoconiosis was mainly male (810 cases, 99.26%). The median age of diagnosis and the 25th and 75th percentile were 63 (51-71) years old, the median length of dust exposure were 12.00 (5.92-28.00) years, and the types of work were mainly rock drillers (24.63%, 201/816), tunneling workers (19.36%, 158/816) and coal miners (13.60%, 111/816). Among 816 cases of new pneumoconiosis, 35 cases were lost to follow-up (4.29%, 35/816), 605 cases survived and 176 cases died. The 5-year survival rate was 78.6% and the 10-year survival rate was 65.8%. Conclusion: The number of pneumoconiosis reported in Chengdu was relatively stable in recent years. The main type of pneumoconiosis was silicosis, which was concentrated in regions, industries and types of work. We should continue to strengthen the prevention and treatment of pneumoconiosis.
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Affiliation(s)
- D Kuang
- Department of Occupational Disease Prevention and Contral Chengdu Center for Disease Control and Prevention, Chengdu 610041, China
| | - Q Peng
- Department of Occupational Disease Prevention and Contral Chengdu Center for Disease Control and Prevention, Chengdu 610041, China
| | - Y Gao
- Department of Occupational Disease Prevention and Contral Chengdu Center for Disease Control and Prevention, Chengdu 610041, China
| | - L Wang
- Department of Occupational Disease Prevention and Contral Chengdu Center for Disease Control and Prevention, Chengdu 610041, China
| | - X S Yang
- Department of Occupational Disease Prevention and Contral Chengdu Center for Disease Control and Prevention, Chengdu 610041, China
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Li H, Wang J, Zhang G, Kuang D, Li Y, He X, Xing C, Wang Y, Shi M, Han X, Ren J, Duan X. Transarterial chemoembolization combined donafenib with/without PD-1 for unresectable HCC in a multicenter retrospective study. Front Immunol 2023; 14:1277329. [PMID: 38090566 PMCID: PMC10711098 DOI: 10.3389/fimmu.2023.1277329] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Accepted: 10/04/2023] [Indexed: 12/18/2023] Open
Abstract
Background & aims This multicenter retrospective study evaluated the efficacy and safety of transarterial chemoembolization (TACE) combined with donafenib and a programmed death-1 (PD-1) inhibitor (TACE+DP) and TACE combined with donafenib (TACE+D) for unresectable hepatocellular carcinoma (uHCC). Methods The clinical data of 388 patients with uHCC who received TACE+DP or TACE+D as first-line treatment at six Chinese academic centers from July 2021 to July 2022 were collected and analyzed retrospectively. Patients in the TACE+DP group received an intravenous administration of a PD-1 inhibitor every three weeks and oral donafenib (0.2 g) twice daily until intolerable toxicity or disease progression. Patients in the TACE+D group received the same dose of donafenib for 3-5 days after TACE. Overall survival (OS) and progression-free survival (PFS)were analyzed by Kaplan-Meier method and log-rank test. The tumor response was compared between the two groups according to modified RECIST criteria. Adverse events were also analyzed between the two groups. Results The TACE+D group included 157 patients and the TACE+DP group included 166 patients. Patients in the TACE+DP group had a longer median OS (18.1 vs. 13.2 months, P<0.001) and longer median PFS (10.6 vs. 7.9 months, P<0.001) than those in the TACE+D group. Patients in the TACE+DP group achieved a greater objective response rate (ORR; 50.6% vs. 41.4%, P=0.019) and greater disease control rate (DCR) (89.2% vs. 82.8%, P=0.010) than those in the TACE+D group. No significant differences were found in the incidence or severity of adverse events between the TACE+DP and TACE+D groups (any grade: 92.9% vs. 94.6%, P=0.270; grade 3 or 4: 33.8% vs. 37.3%, P=0.253). Conclusion With favorable safety and tolerability, TACE combined with donafenib and PD-1 inhibitors significantly improved PFS, OS, and ORR compared to TACE combined with donafenib.
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Affiliation(s)
- Hao Li
- Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Jiacheng Wang
- Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Guokun Zhang
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Zhengzhou, Henan, China
| | - Donglin Kuang
- Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Yanliang Li
- Department of Interventional and Oncology, Dengzhou People's Hospital, Nanyang, Henan, China
| | - Xiang He
- Department of Medical Imaging, Huaihe Hospital of Henan University, Kaifeng, Henan, China
| | - Cheng Xing
- Department of Interventional Radiology, Zhoukou Central Hospital, Zhoukou, Henan, China
| | - Yong Wang
- Department of Interventional Vascular Surgery, The Second Affiliated Hospital of Hainan Medical University, Haikou, Hainan, China
| | - Ming Shi
- Department of Radiology, The Second Hospital of Xingtai, Xingtai, Hebei, China
| | - Xinwei Han
- Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Jianzhuang Ren
- Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Xuhua Duan
- Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
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Duan X, Li H, Kuang D, Chen P, Zhang K, Li Y, He X, Xing C, Wang H, Liu Y, Xie L, Zhang S, Zhang Q, Zhu P, Dong H, Xie J, Li H, Wang Y, Shi M, Jiang G, Xu Y, Zhou S, Shang C, Ren J, Han X. Transcatheter arterial chemoembolization plus apatinib with or without camrelizumab for unresectable hepatocellular carcinoma: a multicenter retrospective cohort study. Hepatol Int 2023; 17:915-926. [PMID: 37012542 PMCID: PMC10386927 DOI: 10.1007/s12072-023-10519-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Accepted: 03/11/2023] [Indexed: 04/05/2023]
Abstract
BACKGROUND The evidence of transcatheter arterial chemoembolization (TACE) plus tyrosine kinase inhibitor and immune checkpoint inhibitor in unresectable hepatocellular carcinoma (HCC) was limited. This study aimed to evaluate the role of TACE plus apatinib (TACE + A) and TACE combined with apatinib plus camrelizumab (TACE + AC) in patients with unresectable HCC. METHODS This study retrospectively reviewed patients with unresectable HCC who received TACE + A or TACE + AC in 20 centers of China from January 1, 2019 to June 31, 2021. Propensity score matching (PSM) at 1:1 was performed to reduce bias. Treatment-related adverse events (TRAEs), overall survival (OS), progression-free survival (PFS), objective response rate (ORR) and disease control rate (DCR) were collected. RESULTS A total of 960 eligible patients with HCC were included in the final analysis. After PSM, there were 449 patients in each group, and the baseline characteristics were balanced between two groups. At data cutoff, the median follow-up time was 16.3 (range: 11.9-21.4) months. After PSM, the TACE + AC group showed longer median OS (24.5 vs 18.0 months, p < 0.001) and PFS (10.8 vs 7.7 months, p < 0.001) than the TACE + A group; the ORR (49.9% vs 42.5%, p = 0.002) and DCR (88.4% vs 84.0%, p = 0.003) of the TACE + AC group were also higher than those in the TACE + A group. Fever, pain, hypertension and hand-foot syndrome were the more common TRAEs in two groups. CONCLUSIONS Both TACE plus apatinib and TACE combined with apatinib plus camrelizumab were feasible in patients with unresectable HCC, with manageable safety profiles. Moreover, TACE combined with apatinib plus camrelizumab showed additional benefit.
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Affiliation(s)
- Xuhua Duan
- Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou University, No. 1, East Jian She Road, Zhengzhou, Henan Province, China
| | - Hao Li
- Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou University, No. 1, East Jian She Road, Zhengzhou, Henan Province, China
| | - Donglin Kuang
- Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou University, No. 1, East Jian She Road, Zhengzhou, Henan Province, China
| | - Pengfei Chen
- Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou University, No. 1, East Jian She Road, Zhengzhou, Henan Province, China
| | - Kai Zhang
- Department of Interventional Radiology, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Yanliang Li
- Department of Interventional and Oncology, Dengzhou People's Hospital, Nanyang, Henan, China
| | - Xiang He
- Department of Medical Imaging, Huaihe Hospital of Henan University, Kaifeng, Henan, China
| | - Cheng Xing
- Department of Interventional Radiology, Zhoukou Central Hospital, Zhoukou, Henan, China
| | - Haibo Wang
- Department of Interventional Radiology, Zhengzhou Central Hospital, Zhengzhou, Henan, China
| | - Yaoxian Liu
- Department of Interventional Radiology, Luohe Central Hospital, Luohe, Henan, China
| | - Limin Xie
- Department of Interventional Radiology, Shangqiu First People's Hospital, Shangqiu, Henan, China
| | - Shixi Zhang
- Department of Infection, Shangqiu Municipal Hospital, Shangqiu, Henan, China
| | - Qiang Zhang
- Department of Interventional Radiology, Anyang District Hospital, Anyang, Henan, China
| | - Peixin Zhu
- Department of Interventional Radiology, General Hospital of Pingmei Shenma Group, Pingdingshan, Henan, China
| | - Honglin Dong
- Department of Interventional Radiology, The People's Hospital of Anyang City, Anyang, Henan, China
| | - Jichen Xie
- Department of Interventional Radiology, The Fifth People's Hospital of Puyang City, Puyang, Henan, China
| | - Hui Li
- Department of Interventional Radiology, The People's Hospital of Jiaozuo City, Jiaozuo, Henan, China
| | - Yong Wang
- Department of Interventional Vascular Surgery, The Second Affiliated Hospital of Hainan Medical University, Haikou, Hainan, China
| | - Ming Shi
- Department of Radiology, The Second Hospital of Xingtai, Xingtai, Hebei, China
| | - Guangbin Jiang
- Department of Interventional Radiology, Suizhou Central Hospital, Suizhou, Hubei, China
| | - Yandong Xu
- Department of CT-MRI, Erdos Central Hospital, Erdos, Inner Mongolia, China
| | - Shiqi Zhou
- Department of Interventional Radiology, North China University of Science and Technology Affiliated Hospital, Tangshan, Hebei, China
| | - Chunyu Shang
- Department of Interventional Radiology, Siping Central People's Hospital, Siping, Jilin, China
| | - Jianzhuang Ren
- Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou University, No. 1, East Jian She Road, Zhengzhou, Henan Province, China.
| | - Xinwei Han
- Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou University, No. 1, East Jian She Road, Zhengzhou, Henan Province, China.
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Kuang D, Peng Q, Wang L, Yang XS, Gao XF. [Epidemiological characteristics of pesticide poisoning in Chengdu City from 2012 to 2021]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2023; 41:451-456. [PMID: 37400408 DOI: 10.3760/cma.j.cn121094-20220125-00049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 07/05/2023]
Abstract
Objective: To explore the present situation and epidemiological characteristics of pesticide poisoning in Chengdu City from 2012 to 2021, and to provide scientific evidence for further prevention and control. Methods: In January 2022, the pesticide poisoning report cards of Chengdu City from 2012 to 2021 were collected from the China Disease Control and Prevention Information System. The data of the report card was reorganized and the distribution characteristics of pesticide poisoning such as time, region, gender, age and pesticide types were analyzed. Results: 14326 cases of pesticide poisoning were reported in Chengdu City from 2012 to 2021, 651 deaths, and the fatality rate was 4.54%. The cases of productive pesticide poisoning and unproductive pesticide poisoning were 504 and 13822, respectively. The fatality rates of productive and unproductive pesticide poisoning were 1.39% and 4.66%, which were significant different (χ(2)=11.99, P=0.001). The highest reported cases of pesticide poisoning was in 2013 (1779) and the lowest in 2021 (1047). The number of reported cases showed a downward trend year by year (t=-12.30, P<0.001), and the fatality rates also showed a downward trend year by year (χ(2)(trend)=25.48, P<0.001). The fluctuation range of unproductive pesticide poisoning cases in each month of the year was small, and the productive pesticide poisoning mainly occurred from May to August. The regions with the largest number of reported poisoning cases were Pengzhou (1620), Jianyang (1393), Jintang (1266) and Qionglai (1158). The high incidence of poisoning was among 25-54 years old (50.21%, 7193/14326). The fatality rate in the age group 75-96 years old was the highest (8.98%, 95/1058), and the fatality rates increased gradually with age (χ(2)(trend)=186.03, P<0.001). The pesticides causing poisoning were mainly insecticide (43.86%, 6284/14326) and herbicides (35.75%, 5121/14326). Herbicides paraquat had the highest fatality rate (9.54%, 286/2998) . Conclusion: Pesticide poisoning in Chengdu City is mainly unproductive poisoning. Health education should be carried out for key areas and people, and the control of highly toxic pesticides such as insecticide and herbicides should be strengthened.
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Affiliation(s)
- D Kuang
- Department of Occupational Disease Prevention and Control, Chengdu Center for Disease Control and Prevention, Chengdu 610041, China Department of Envionmental and School Health, Chengdu Center for Disease Control and Prevention, Chengdu 610041, China
| | - Q Peng
- Department of Occupational Disease Prevention and Control, Chengdu Center for Disease Control and Prevention, Chengdu 610041, China
| | - L Wang
- Department of Occupational Disease Prevention and Control, Chengdu Center for Disease Control and Prevention, Chengdu 610041, China
| | - X S Yang
- Department of Occupational Disease Prevention and Control, Chengdu Center for Disease Control and Prevention, Chengdu 610041, China
| | - X F Gao
- Department of Envionmental and School Health, Chengdu Center for Disease Control and Prevention, Chengdu 610041, China
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Kuang D, Zhang N, Zhang M, Li H, Han X, Ren J, Duan X. Correlation between magnetic resonance images of peritumor margin enhancement and prognosis in hepatocellular carcinoma after drug-eluting bead transcatheter arterial chemoembolization. Front Oncol 2023; 13:957710. [PMID: 37081977 PMCID: PMC10110982 DOI: 10.3389/fonc.2023.957710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Accepted: 03/22/2023] [Indexed: 04/07/2023] Open
Abstract
PurposeThe aim of this study is to investigate the morphological characteristics and clinical significance of magnetic resonance (MR) images of peritumor margin enhancement in hepatocellular carcinoma (HCC) after drug-eluting bead transcatheter arterial chemoembolization (DEB-TACE).MethodsFrom January 2017 to December 2020, a total of 162 patients who received a diagnosis of HCC were included in our study. We began the follow-up with magnetic resonance imaging (MRI) for complete response assessment, and peritumor margin enhancements were classified as sharp and rough types according to morphology. During the follow-up, data such as progression or remission of the two enhancement modalities, morphological changes in terms of margin enhancements observed in MR images, and alpha-fetoprotein (AFP) levels were recorded.ResultsIn the follow-up period of 36 months, 70 and 92 patients with sharp- and rough-type peritumor margins, respectively, were observed. At the end of the follow-up, patients with sharp-type margins had lower AFP levels and longer progression-free survival than those with rough-type margins (P < 0.05). Furthermore, the sharp-type margin was thinner than the rough-type margin (all P < 0.05). Moreover, the sharp-type group had a high incidence of tumors with a diameter of < 5 cm, whereas the rough-type group had a high incidence of tumors with a diameter of ≥ 5 cm. Continuous enhancements of peritumor margins in MRI were greater in the sharp-type group than in the rough-type group. Most of the patients with a sharp-type margin achieved disease remission (94.3%, P < 0.05), whereas most of those with a rough-type margin experienced disease progression (84.8%, P < 0.05).ConclusionsPatients with HCC with a sharp-type margin enhancement on MRI after DEB-TACE mostly demonstrated benign lesions with a good prognosis, whereas those with a rough-type margin mostly demonstrated malignant growth.
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Affiliation(s)
| | | | | | | | | | | | - Xuhua Duan
- *Correspondence: Jianzhuang Ren, ; Xuhua Duan,
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Duan X, Li H, Kuang D, Zhang M, Xu W, Liang C, Wang J, Ren J. 143P Efficacy and safety of bronchial arterial chemoembolization (BACE) in combination with tislelizumab for non-small cell lung cancer (NSCLC): A single-arm phase II trial. Immuno-Oncology and Technology 2022. [DOI: 10.1016/j.iotech.2022.100255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Xu W, Zhang M, Wang W, Wang M, Li B, Li H, Kuang D, Liang C, Ren J, Duan X. Covalent organic polymer induces apoptosis of liver cancer cells via photodynamic and photothermal effects. Front Oncol 2022; 12:986839. [PMID: 36439424 PMCID: PMC9682000 DOI: 10.3389/fonc.2022.986839] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Accepted: 10/17/2022] [Indexed: 11/11/2022] Open
Abstract
The purpose of this study was to explore the photodynamic and photothermal effects of the supramolecular material Purp@COP and to test the anti-cancer effect on HepG2 cells in vitro.
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Affiliation(s)
- Wenze Xu
- Department of Interventional Radiology, First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Mengfan Zhang
- Department of Interventional Radiology, First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Wenhui Wang
- Department of Interventional Radiology, First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Manzhou Wang
- Department of Interventional Radiology, First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Bingjie Li
- Department of Oncology, First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Hao Li
- Department of Interventional Radiology, First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Donglin Kuang
- Department of Interventional Radiology, First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Chao Liang
- Department of Interventional Radiology, First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Jianzhuang Ren
- Department of Interventional Radiology, First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
- *Correspondence: Jianzhuang Ren, ; Xuhua Duan,
| | - Xuhua Duan
- Department of Interventional Radiology, First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
- *Correspondence: Jianzhuang Ren, ; Xuhua Duan,
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Li H, Wang M, Chen P, Li F, Kuang D, Han X, Ren J, Duan X. Occurrence, Related Factors and Prognostic Value of Vascular Lake in Hepatocellular Carcinoma Patients Treated with Drug-Eluting Bead Transarterial Chemoembolization. Onco Targets Ther 2021; 14:4659-4670. [PMID: 34511935 PMCID: PMC8418356 DOI: 10.2147/ott.s297523] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Accepted: 03/31/2021] [Indexed: 11/23/2022] Open
Abstract
Purpose The present study aimed to assess the prevalence of vascular lake (VL), its associated factors and correlation with prognosis in hepatocellular carcinoma (HCC) patients treated with drug-eluting bead transarterial chemoembolization (DEB-TACE). Patients and Methods A total of 286 primary HCC patients (with 384 treated nodules) receiving DEB-TACE treatment were recruited, and their clinical characteristics were documented. The occurrence of VL was recorded, and treatment responses were assessed according to the modified response evaluation criteria in solid tumor (mRECIST).In terms of treatment response, the total response status (including CR, PR, SD and PD), objective response rate (ORR) and disease control rate (DCR) were elevated in VL patients compared to non-VL patients as well as in VL nodules compared to non-VL nodules. Liver function indexes and adverse events were assessed. Progression-free survival (PFS) and overall survival (OS) were evaluated with the last follow-up date of March 2020. Results The patient-based and nodule-based VL occurrence rates were 17.1% and 16.4%, respectively. Larger tumor size, pseudocapsules and smaller bead size were independently associated with VL occurrence. PFS and OS were more prolonged in VL patients than in non-VL patients, and VL independently correlated with better PFS and OS. For liver function, the liver function indexes before and after DEB-TACE were of no difference between VL patients and non-VL patients. Additionally, the incidences of adverse events were similar between VL patients and non-VL patients. Conclusion VL occurs in 17.1% of HCC patients treated with DEB-TACE, and it is correlated with larger tumor size, pseudocapsule, smaller bead size, more favorable treatment response and better survival.
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Affiliation(s)
- Hao Li
- Department of Interventional Radiology, The First Affiliated Hospital, Zhengzhou University, Zhengzhou, People's Republic of China
| | - Manzhou Wang
- Department of Interventional Radiology, The First Affiliated Hospital, Zhengzhou University, Zhengzhou, People's Republic of China
| | - Pengfei Chen
- Department of Interventional Radiology, The First Affiliated Hospital, Zhengzhou University, Zhengzhou, People's Republic of China
| | - Fangzheng Li
- Department of Interventional Radiology, The First Affiliated Hospital, Zhengzhou University, Zhengzhou, People's Republic of China
| | - Donglin Kuang
- Department of Interventional Radiology, The First Affiliated Hospital, Zhengzhou University, Zhengzhou, People's Republic of China
| | - Xinwei Han
- Department of Interventional Radiology, The First Affiliated Hospital, Zhengzhou University, Zhengzhou, People's Republic of China
| | - Jianzhuang Ren
- Department of Interventional Radiology, The First Affiliated Hospital, Zhengzhou University, Zhengzhou, People's Republic of China
| | - Xuhua Duan
- Department of Interventional Radiology, The First Affiliated Hospital, Zhengzhou University, Zhengzhou, People's Republic of China
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Kuang D, Yu YY, Yang Y, Gao Y, Tu C, Wang L. [High frequency hearing loss detection rate in occupational noise exposed workers in China: a Meta-analysis]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2021; 39:184-189. [PMID: 33781033 DOI: 10.3760/cma.j.cn121094-20200306-00106] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: A Meta-analysis was used to evaluate the high frequency hearing loss detection rate, its area and time distributions in occupational noise exposed workers in China to provide evidence for the prevention and control of occupational noise-induced deafness. Methods: From February to April 2020, the number of hearing tests and the number of binaural high frequency average hearing threshold ≥40 dB of workers exposed to noise in key occupational disease monitoring and occupational health risk assessment project in China was collected from China National Knowledge Infrastructure (CNKI) , VIP database and PubMed database. The retrieval time was set from the establishment of the database to February 28, 2020. The R 3.6.2 software was used to calculate the pooled high frequency hearing loss detection rate. Results: A total of 28 studies, included 34 data and 1259571 occupational noise exposed workers, were enrolled. The articles covered 16 provinces in 2015-2018. The pooled high frequency hearing loss detection rate in occupational noise exposed workers was 9.45% (95%CI: 7.64%-11.64%) . The high frequency hearing loss detection rate (10.54%) was higher in 2018 than other years (2017: 10.17%, 2016: 9.21%, 2015: 7.88%) . The high frequency hearing loss detection rate (12.23%) was higher in central China than in eastern (10.21%) , western (7.91%) and north-eastern (5.21%) China. Conclusion: The overall high frequency hearing loss detection rate in occupational noise exposed workers is generally high in China. It is important to strengthen the hearing protection in occupational noise exposed workers to facilitate the occupational noise-induced deafness prevention and control in China.
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Affiliation(s)
- D Kuang
- Chengdu Center for Disease Control and Prevention, Chengdu 610041, China
| | - Y Y Yu
- High-tech District Center for Disease Control and Prevention of Chengdu City, Chengdu 610093, China
| | - Y Yang
- Chengdu Center for Disease Control and Prevention, Chengdu 610041, China
| | - Y Gao
- Chengdu Center for Disease Control and Prevention, Chengdu 610041, China
| | - C Tu
- Chengdu Center for Disease Control and Prevention, Chengdu 610041, China
| | - L Wang
- Chengdu Center for Disease Control and Prevention, Chengdu 610041, China
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12
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Xie L, Xiao L, Kuang D, Jiang Y, Yang Y. [Influencing factors on smoking cessation among outpatients from the National Central Subsidy Smoking Cessation Clinic Project, in 2015-2018]. Zhonghua Liu Xing Bing Xue Za Zhi 2020; 41:890-895. [PMID: 32564555 DOI: 10.3760/cma.j.cn112338-20191104-00780] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To evaluate the effect of smoking cessation project run by the Central Subsidy Smoking Cessation Clinic and to explore the related influencing factors on smoking cessation, in order to improve related services and provide better guidance to these smoking cessation clinics. Methods: Practitioners who had been trained to run smoking cessation projects were recruited to conduct face-to-face interview with the smokers. Questionnaires were completed to provide information on related psychological, social and behavioral issues. In these clinics, medications were provided to the patients by the health care takers in the clinic. One month after the first visit, smoking cessation rate (self-reported, 7-day point prevalence abstinence rate at 30-day follow-up) was counted. Results: The overall smoking cessation rate (self-reported, 7-day point prevalence abstinence rate at 30-day follow-up) appeared as 34.1%. Results from the multivariate logistic regression showed that patients over the age of 60 were the ones most likely to quit smoking. Smokers who showed higher possibility of quitting would include those: not on the daily base, intend to quit within 30 days, with other diseases, or taking varenicline and bupropion. Factors as unemployment, longer history of smoking, bigger quantity of cigarettes consumption per day, dependence on nicotine and urgency on taking up the first cigarette in the early morning etc., were related to the less likelihood of giving up smoking. However, histories of cessation did not seem to affect the possibility of quitting. Conclusions: Data from self-reported 7-day point prevalence abstinence at 30-day follow-up study showed that the smoking cessation intervention programs run by the central subsidy smoking cessation clinic project had been effectively implemented. Advocacy on quit smoking at early stage seemed to have better outcomes, thus should be called for. Since medications as varenicline tartrate and bupropion hydrochloride can increase the possibility of stop smoking, we would suggest that all the hospitals which are with smoking cessation clinics be equipped with these medicines. Professional assistance provided by practitioners is of key importance to help overcome the withdrawal symptoms during the periods of cessation, on these smokers.
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Affiliation(s)
- L Xie
- Office of Tobacco Control, Chinese Center for Disease Control and Prevention, Beijing 100050, China
| | - L Xiao
- Office of Tobacco Control, Chinese Center for Disease Control and Prevention, Beijing 100050, China
| | - D Kuang
- Occupational Disease Prevention Office, Chengdu Center for Disease Control and Prevention, Chengdu 610041, China
| | - Y Jiang
- Office of Tobacco Control, Chinese Center for Disease Control and Prevention, Beijing 100050, China
| | - Y Yang
- Office of Tobacco Control, Chinese Center for Disease Control and Prevention, Beijing 100050, China
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13
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Kuang D, Xu SP, Hu Y, Liu C, Duan YQ, Wang GP. [Pathological changes with novel coronavirus infection in lung cancer surgical specimen]. Zhonghua Bing Li Xue Za Zhi 2020; 49:471-473. [PMID: 32171194 DOI: 10.3760/cma.j.cn112151-20200315-00205] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- D Kuang
- Institute of Pathology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - S P Xu
- Institute of Pathology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Y Hu
- Institute of Pathology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - C Liu
- Institute of Pathology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Y Q Duan
- Institute of Pathology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; Department of Pathology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - G P Wang
- Institute of Pathology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; Department of Pathology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
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14
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Xu SP, Kuang D, Hu Y, Liu C, Duan YQ, Wang GP. [Detection of 2019-nCoV in the pathological paraffin embedded tissue]. Zhonghua Bing Li Xue Za Zhi 2020; 49:354-357. [PMID: 32084674 DOI: 10.3760/cma.j.cn112151.20200219.00001] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- S P Xu
- Institute of Pathology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - D Kuang
- Institute of Pathology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Y Hu
- Institute of Pathology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - C Liu
- Institute of Pathology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Y Q Duan
- Institute of Pathology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; Department of Pathology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - G P Wang
- Institute of Pathology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; Department of Pathology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
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Dell'aquila R, Chiaramonte S, Rodighiero MP, Di Loreto P, Spano' E, Nalesso F, Cruz D, Kuang D, Ronco C. The Vicenza “Short” Peritoneal Catheter: A Twenty Year Experience. Int J Artif Organs 2018; 29:123-7. [PMID: 16485247 DOI: 10.1177/039139880602900112] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Dislocation of peritoneal dialysis catheters is one of the major causes of technique failure. We evaluated 701 Vicenza catheters, implanted since 1985 in 365 males, mean age 53 ± 16 yrs, range 24 - 87, and 336 females, mean age 51 ± 17 yrs, range 21 - 82. The Vicenza catheter is defined “short” since it consists of a classic straight double cuff PD catheter having however an inner segment (the portion located in the peritoneal cavity) much shorter than any other type of catheter. It is implanted in the lower abdomen, just a few centimeters above the pubis. The analysis of our results obtained in a large PD population displayed good device survival at 2 and 5 years (94.3% and 91.5% respectively), a low dislocation rate (4%) and an exit-site infection rate similar to other double cuffed catheters. There was no selection of patients receiving this catheter since from 1985 we have used this catheter in every incident patient. Due to its lower implantation site this catheter demonstrates excellent wearability and good body image acceptance.
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Affiliation(s)
- R Dell'aquila
- Department of Nephrology, Dialysis and Transplantation, St. Bortolo Hospital, Vicenza, Italy.
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Kuang D, Ronco C. Adjustment of Antimicrobial Regimen in Critically III Patients Undergoing Continuous Renal Replacement Therapy. Intensive Care Med 2007. [DOI: 10.1007/978-0-387-49518-7_54] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Kuang D, Verbine A, Ronco C. Pharmacokinetics and antimicrobial dosing adjustment in critically ill patients during continuous renal replacement therapy. Clin Nephrol 2007; 67:267-84. [PMID: 17542336 DOI: 10.5414/cnp67267] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Appropriate antimicrobial therapy poses one of the greatest challenges during the management of a septic patient in the intensive care unit (ICU). Acute renal failure (ARF) is a common complication of sepsis and often occurs as a component of multiple organ dysfunction syndrome. Continuous renal replacement therapy (CRRT) is increasingly used as an effective extracorporeal blood purification therapy in this critically ill patient population. Available data demonstrate that sepsis, ARF and different modalities of CRRT may have profound effects on the pharmacokinetics and pharmacodynamics of various antimicrobial agents used in the ICU. Guidelines for antimicrobial prescription which will fit the individual patient undergoing a particular method of treatment are still unavailable. Understanding the principles of drug removal by CRRT and pharmacokinetics of various agents can help to modify the drug dosage and dosing intervals for individualized therapy. Meanwhile, monitoring the drug serum concentration is still mandatory whenever clinically feasible.
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Affiliation(s)
- D Kuang
- Department of Nephrology, Dialysis and Transplantation, San Bortolo Hospital, Vicenza, Italy
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Hajj GA, Ao CO, Iijima BA, Kuang D, Kursinski ER, Mannucci AJ, Meehan TK, Romans LJ, de la Torre Juarez M, Yunck TP. CHAMP and SAC-C atmospheric occultation results and intercomparisons. ACTA ACUST UNITED AC 2004. [DOI: 10.1029/2003jd003909] [Citation(s) in RCA: 253] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- G. A. Hajj
- Jet Propulsion Laboratory; California Institute of Technology; Pasadena California USA
| | - C. O. Ao
- Jet Propulsion Laboratory; California Institute of Technology; Pasadena California USA
| | - B. A. Iijima
- Jet Propulsion Laboratory; California Institute of Technology; Pasadena California USA
| | - D. Kuang
- Jet Propulsion Laboratory; California Institute of Technology; Pasadena California USA
| | - E. R. Kursinski
- Department of Atmospheric Sciences; University of Arizona; Tucson Arizona USA
| | - A. J. Mannucci
- Jet Propulsion Laboratory; California Institute of Technology; Pasadena California USA
| | - T. K. Meehan
- Jet Propulsion Laboratory; California Institute of Technology; Pasadena California USA
| | - L. J. Romans
- Jet Propulsion Laboratory; California Institute of Technology; Pasadena California USA
| | - M. de la Torre Juarez
- Jet Propulsion Laboratory; California Institute of Technology; Pasadena California USA
| | - T. P. Yunck
- Jet Propulsion Laboratory; California Institute of Technology; Pasadena California USA
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Chen S, Lin E, Ran W, Kuang D, Li C. [Three-dimensional surface reconstruction of spiral CT for teeth and clinical use in examining impacted teeth of jaws]. Hua Xi Kou Qiang Yi Xue Za Zhi 2000; 18:247-9. [PMID: 12539534] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/28/2023]
Abstract
OBJECTIVE To establish a new technique for three-dimensional surface reconstruction of teeth (dental surface reconstruction), and apply it to investigate impacted teeth in bone before operation. METHODS On the basis of three-dimensional surface reconstruction of teeth and jaws, the dental surface reconstruction is obtained with the technique of shaded surface display (SSD), making transparent bone around. This technique is applied to investigate 9 cases of supernumerary and impacted teeth. RESULTS Dental surface reconstruction image can present the dental surface image including crown, root, neck and root bifurcation in three-dimensional way, without presenting the image of other tissue around. In 4 cases, the abnormal configuration, labial or palatal location, and relation with dentition in anterior maxilla of 5 supernumerary were shown. In 1 case, the shape, location, eruption orientation and the angle of orthodontic distraction of 1 impacted permanent canine were displayed. In 3 cases, the shape, location, and extraction resistance of 6 impacted wisdom teeth were revealed. In 1 case, the configuration, distance to adjacent molar of 1 impacted wisdom tooth, which is a transposition tooth in maxillary sinus, were also demonstrated. CONCLUSION The dental surface reconstruction is a new technique to display three-dimensional surface configuration of teeth. This technique can be applied to examine impacted and supernumerary teeth before surgical and orthodontic treatment.
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Affiliation(s)
- S Chen
- Department of Stomatology, Sun Yat-sen University of Medical Sciences
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Kuang D, Zhang F. [Study on synthesis and molecular spectra of the N-(2-hydroxy) naphthylmethyleneamino iron(III), cobalt(II) and copper(II) complexes]. Guang Pu Xue Yu Guang Pu Fen Xi 1997; 17:19-22. [PMID: 15810239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
The title complexes were synthesized via reaction of iron nitrate, cobalt acetate and copper acetate with the didentate O,N-donor Schiff bases in methanol solution. The electronic and infrared spectra of these complexes were measured and the major IR bands were assigned.
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Affiliation(s)
- D Kuang
- Department of Chemistry, Hengyang Teachers' College, Hengyang
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Yang Z, Zhu Y, Yu Y, Kuang D. [Fine physical mapping of yeast chromosome V]. Yi Chuan Xue Bao 1997; 24:87-93. [PMID: 9167368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Electrophoretic karyotype of yeast strain A364a was obtained by pulsed field gel electrophoresis and the position of chromosome V on such karyotype was determined by means of dot hybridization with chromosome V-specific probe URA3. By cloning partially digested BamHI fragments of this chromosome DNA into integrative vector Yip5, a gene library specific to this chromosome was constructed. The number of the recombinants was much more than theoretically required. After screening probe-homologous fragments from this library and analysing such fragments with restriction enzymes BamHI, EcoRI, HindIII, PstI, and SalI, a fine physical map covering about 9.4% of A364a chromosome V (which was estimated as 620kb) was constructed. Further colony hybridization with boundary clones will enable us to "walk" throughout the whole chromosome.
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Affiliation(s)
- Z Yang
- Shanghai Institute of Cell Biology, Chinese Academy of Science
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Abstract
We introduce a channel selection method for atmospheric remote-sensing problems described by a Fredholm integral equation of the first kind. Whether one set of channels (CH) is more suitable than another (CH') can be judged by whether (1) the degree of predominance (DP) value of CH is larger than that of CH', i.e., if the number of channels is the same and (2) the number of channels of CH is more than that of CH', if the DP values of both are acceptable. One can calculate the DP of the unknown function f (y) for a set of remote-sensing channels by DP = [1 + (Rf̃(a)(2) - 1) R(d)(2)](-1/2), Rf̃(a)(2) = R(c)(2)[ R(b)(2) + R(a)(2)(1 + R(b)(2))], where R(a), R(b), R(c), and (1 - R(d)(2))(1/2) of this channel set represent the influences on the ability to recover the unknown function caused by various measurement errors, the noise parameter, the relativity of the kernel functions, and the blindness of remote sensing means, respectively. Our channel selection method can be simplified to a conventional method when there are no differences in the relative measurement errors, no blind components of the unknown function and no noise parameters in the kernel function.
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