1.Long term results of precautious coronary intervention in non-ST elevation acute coronary syndrome patients
Chaozhong LIU ; Huilan LUO ; Congchun HUANG
Chinese Journal of Interventional Cardiology 1993;0(02):-
0 05) Conclusion PCI treatment can get better long term effect in non ST elevation acute coronary syndrome patients and the result is the same as that in stable angina pectoris patients
2.C type natriuretic peptide in femoral atery stenosis in diabetic rabbit models
Lingqiang BAI ; Chaozhong LIU ; Jianwei TIAN
Chinese Journal of Interventional Cardiology 2003;0(05):-
Objective To observe the changes in plasma C type natriuretic peptide(CNP) and C reaction protein(CRP) levels and the preventive effect of exogenous CNP on vascular stenosis in a diabetic rabbit model after femoral artery injury.Methods After setting up an animal model of diabetes,the rabbits were divided into the control group(n=8),artery injury group(n=8) and CNP treatment group(n=8).Enzyme-linked immunosorbent assay was used in determination of plasma CRP and CNP concentration.Histological changes in the femoral artery wall were evaluated by HE staining to determine the degree of stenosis.Results The post operative CRP concentration of the artery injury group compared with CNP treatment group was 13.81?4.30 ?g/mL vs 8.43?0.61 ?g/mL(P
3.Efficacy of lipid-lowering and anti-inflammatory effects of statins sequential therapy in coronary ;heart disease patients undergoing elective PCI
Shao WANG ; Haitao ZHANG ; Chaozhong LIU
Chinese Journal of Interventional Cardiology 2014;(4):230-236
Objective To assess the inlfuence and safety of early atorvastatin sequential therapy in coronary heart disease (CHD) patients underdoing elective percutaneous coronary intervention on selected indicators of inflammation and serum lipids. Methods A total of 88 CHD patients who got ready to receive the elective percutaneous coronary intervention (PCI) were divided in two groups at random:The sequential dose group was called group A (atorvatatin 80mg as loading dose ,40 mg/d for 1 month after PCI and 20 mg/d subsequently, n=43), and the ordinary dose group was called group B ( atorvastatin 20 mg/d, n=45). During the follow-up, blood samples were taken at baseline, 3 days,1 month, 3 months and 6 months for myeloperoxidase (MPO), matrix metalloproteinase-9(MMP-9), serum lipids, serum alanine aminotransferase (ALT), glutamyl endopeptidase (GGT) and creatine kinase (CK) levels. Main adverse cardiac events and adverse effects were also analyzed. Results Compared with the baseline, the level of low-density lipoprotein-cholesterol (LDL-C) and total cholesterol (TC) was signiifcantly decreased in both two groups after treatment (P < 0.05). The LDL-C and TC in both groups were all decreased after treatment, and the degree of LDL-C and TC decreased at 3 days had signiifcant differences between the two groups (TC:26.6%vs. 14.0%;LDL-C:36.9%vs. 19.4%, both P<0.05). The degree of LDL-C decreased at 1 month between the two groups also had signiifcant differences (45.0%vs. 26.9%;P<0.05). The changes in LDL-C and TC level were also signiifcantly different between the two groups at 3 and 6 months (P<0.05). While TG and HDL-C remained unchanged. MMP-9 and MPO were both reduced post medication compared to pre-treatment levels (P<0.05). MPO was decreased signiifcantly in group A after treatment (F=18.455, P=0.000). And the same differences in group B were also signiifcant (P < 0.05). MPO post medication between the 2 groups were not significantly different (P > 0.05). Reduction in MMP-9 also showed signiifcant in both groups after treatment (group A:F=46.911, P=0.00;group B:F=19.156, P=0.00). The adverse effects had no signiifcant differences between the 2 groups (P>0.05). Conclusions The atorvastatin sequential theapy in CHD patients undergoing elective percutaneous coronary intervention could decrease serum lipids signiifcantly. Pretreatment with atorvastatin for patients undergoing PCI could inhibit inlfammation. The MACE and adverse effects were similar between the two groups.
4.Determination of Content and Related Substances of Troxipite Tablets by HPLC
Yuhan LIU ; Liancheng ZHANG ; Shoushi JIA ; Chaozhong WANG
China Pharmacist 2015;(3):497-499
Objective:To establish a method for the determination of content and related substances of troxipite tablets by HPLC. Methods:A Waters Symmetry-C18 (150 mm × 4. 6 mm,5 μm) column was used. The mobile phase was methanol -0. 4% phosphoric acid solution (50∶50). The flow rate was 1. 0 ml·min-1. The detection wavelength was 260nm. The column temperature was 35℃and the injection volume was 20 μl. Results:The linear range of troxipite was 3-75 μg·ml-1(r=0.999 7). The average recovery was 99. 7%,RSD=0. 95%(n=9). Conclusion:The method is simple, accurate and specific, and can be used in the quality control of troxipite tablets.
5.Research advances in chitosan and its derivatives as scaffold for corneal tissue engineering
Xiaolei JIANG ; Chaozhong YANG ; Baoqin HAN ; Wanshun LIU
Recent Advances in Ophthalmology 2017;37(4):392-395,400
The current problems with corneal transplant,including shortage of donors and immune rejection,could be effectively solved by constructing cornea in vitro with tissue engineering techniques,in which the selection of suitable scaffold materials is especially critical.Chitosan and its derivatives are natural biomaterials with excellent biocompatibility,biodegradability,mechanical property and plasticity,indicating wide application prospects in corneal tissue engineering.This article systematically reviews the research advances in chitosan and its derivatives in corneal tissue engineering,and the existing problems are also highlighted in order to provide theoretical basis for further clinical research.
6.Effect of Intraaortic Balloon Pump Used During Emergency Percutaneous Coronary Intervention
Congchun HUANG ; Chaozhong LIU ; Huilan LUO ; Weijie TAN
Chinese Journal of Rehabilitation Theory and Practice 2007;13(4):382-383
Objective To observe the effect of intraaortic balloon pump (IABP) on tolerance of percutaneous coronary intervention (PCI), life signs of patients with acute myocardial infarction (AMI) during emergency PCI performed.Methods46 AMI patients complicated with or without cardiogenic shock were put on IABP at same time of coronary angiography when emergency PCI performed, and tolerance of PCI, blood pressure, heart rate and immediate death rate of patients were observed before and after operation.Results45 cases had IABP successful and 1 case failed. 40 patients (86.96%) could endure whole emergency PCI process, the total death rate was 10.87%. 66.67% of patients with obvious cardiogenic shock could endure emergency PCI, the death rate was 33.33%; 94.12% of patients without cardiogenic shock could endure PCI treatment and the death rate was 2.94%. 35 cases completed PCI treatment and the successful rate was 85.36%.ConclusionPCI supported by IABP can prevent AMI patients from cardiogenic shock, ease symptoms of patients complicated with cardiogenic shock, improve the tolerance and successful rate of the PCI treatment, and decrease immediate death rate.
7.Interventional therapy on below-knee arteries in patients with diabetic foot ulcers
Haitao ZHANG ; Weijie TAN ; Congchun HUANG ; Huilan LUO ; Meng CHAI ; Chaozhong LIU
Chinese Journal of Endocrinology and Metabolism 2008;24(2):180-181
The arterial lesions of lower extremities in patients with diabetic foot ulcers were extensive.The majority of below-knee arteries showed severe stenosis, even complete occlusion.Interventional therapy of femoral artery was effective in improving arterial blood perfusion and remission of the pain and numbness.After therapy, the skin temperature and ankle brachial index (ABI) were increased, healing of ulcer was enhanced and intermittent claudication was ameliorated.Percutaneous transluminal angioplasty of femoral artery was effective in improving arterial blood perfusion of the lower extremities with foreseen curing efficacy.
8.Role of computer aided design for treating coronary atherosclerotic heart disease
Hongchao ZHANG ; Guorong ZHANG ; Xiangyang ZHANG ; Longsong PIAO ; Li LI ; Chaozhong LIU
Chinese Journal of Tissue Engineering Research 2009;13(48):9597-9600
OBJECTIVE: Computer has become an important tool in medical works. However, application ability of clinical physicians is imbalanced with the fast development of information technology (IT) system. Therefore, it is necessary to explore a bridge between researchers and integrate decentralized IT resources. Based on this survey, we provide some views concerning IT applying in medical procedures. METHODS: The correlated computer information was collected from a patient with coronary heart disease from early diagnosis, interventional therapy to coronary bypass surgery, until rehabilitation. The medical staffs were investigated from the general status, computer skills, knowledge structure, as well as the acceptance degree of computer application to measure computer skills. RESULTS: The correlated computer information was characterized by large soft variability, a large time span, and various date categories with more dynamic data or three-dimensional data. The investigation of computer knowledge demonstrated that the lack of IT knowledge resulted in poor outcome in their appointed tasks. From the view of self-assessment of IT knowledge, nursing staff and technician exhibited deficiency IT knowledge than doctors, who learned from department training, self-study or internet. Resident physicians and attending physicians were familiar with office system, so they were satisfied with IT skills. In contrary, nurses and majority of high-ranking professor or chief physicians were found difficult to study IT skills. However, most nurses were fond of their office system. The results also demonstrated that people aged 31 -40 years were easy to receive IT system. CONCLUSION: It is very important to enhance the cooperation between computer researchers and medical users for the treatment of coronary atherosclerotic heart disease.
9.An empirical study on medical selection of flying cadets with arrhythmia between PLAAF and USAF
Di ZHU ; Zhikang ZOU ; Congchun HUANG ; Chaozhong LIU ; Xiaoguang XIAO ; Jianchang WANG ; Zhongli MA
Military Medical Sciences 2016;(1):12-15
Objective To determine whether the candidates who are disqualified because of arrhythmia during medical selection of flying cadets in China are qualified or not according to United States Air Force ( USAF ) Medical Standards Directory( MSD) , in order to raise suggestions on revising PLAAF medical selection of flying cadets.Methods ECG was performed on all candidates who participated in the final stage of medical selection of flying cadets, and they were considered qualified or not according to USAF MSD.Results Arrhythmia accounted for the largest proportion of cardiovascular diseases( CVDs) in PLAAF medical selection of flying cadets,the constituent ratios of CVDs from 2012 to 2015 were significant different (P<0.01).There were differences between the two countries and the outcome of 81.48%of the candidates disqualified for premature systole in PLAAF was unknown according to USAF MSD.Conclusion There are some differences in medical selection standards of flying cadets between PLAAF and USAF, and we could revise PLAAF standards with reference to USAF standards.
10.The treatment and long-term management of severe coronary artery lesion in Kawasaki disease
Chinese Pediatric Emergency Medicine 2020;27(9):661-665
Giant coronary aneurysm is the most severe complication of Kawasaki disease and is the leading cause of cardiovascualr events, which can cause coronary artery stenosis, thromboembolism, myocardial ischemia and even death.We aim to improve the prognosis of the patients with sever coronary artery lesions by comprehensive management including active anti-inflammatory and antithrombotic therapy in acute and subacute phase, as well as optimal treatment and follow-up plan according to morphologic evaluation of coronary artery lesions and myocardial ischemia after convalescent period.