1.The effect of direct coronary stenting on no-reflow phenomena in patients with coronary artery disease
Qi ZHAGN ; Weifeng SHEN ; Jiansheng ZHANG
Chinese Journal of Interventional Cardiology 2003;0(05):-
Objective To compare the effect of direct stenting (DS) and conventional post-dilation stenting (CS) on no-reflow phenomena in coronary artery disease (CAD) patients. Methods Demographic characters, final baloon dilation pressure instant angiographic results, and long term outcomes were compared between patients receiving DS (n=127) and patients receiving CS (n=127). Results Patients in DS group had less degree of stenosis (82%?6% vs 87%?11%,P
2.Efficacy and safety of percutaneous stent implantation for native aortic coarctation
Qi ZHANG ; Weifeng SHEN ; Ruiyan ZHANG
Chinese Journal of Interventional Cardiology 1996;0(01):-
Objective To evaluate the efficacy and safety of percutaneous stent implantation for native aortic coarctation. Methods Five patients with native coarctation of the aorta underwent percutaneous endovascular angioplasty and stenting. Immediate and long-term outcomes were assessed in terms of blood pressure changes, procedure complications, and medications. Results Compared before and after stenting, the pressure gradient associated with the stenotic segment was decreased immediately after stenting [(73?6) mm?Hg vs (8?2) mm?Hg, P
3.Effects of chronic renal dysfunction on serverity of coronary artery disease and outcome of PTCA
Qi ZHANG ; Weifeng SHEN ; Jiansheng ZHANG
Journal of Interventional Radiology 1994;0(03):-
150?mol/L who underwent PTCA and/or coronary stenting were included (renal dysfunction group). Another 25 age and sex matched patients who had normal serum creatinine level and received coronary intervention at the same period were served as a control group. The status of coronary disease, procedural complications and long term prognosis were compared between the two groups. Results The number of patients with multi vessel disease (72% vs 48%, P
4.Renal artery stenosis and stent treatment in patients with coronary artery disease
Huili XING ; Weifeng SHEN ; Qi ZHANG
Journal of Interventional Radiology 1994;0(04):-
70%) underwent successful stent implantation. Two weeks after interventional treatment, renal function was improved in 26 patients and blood pressure was well controlled in 24.Conclusions Age, hypertension and hyperlipidemia are the factors influencing occurrence of RAS in patients with CAD. Stent implantation plays an important role in the protection of renal function and control of hypertension.
5.Early and short-term clinical outcome of ACS MULTI-LINK PENTA coronary stent implantation
Qi ZHANG ; Weifeng SHEN ; Jiansheng ZHANG
Journal of Interventional Radiology 2001;0(06):-
Objective To evaluate the feasibility, safety and efficacy of ACS MULTI LINK PENTA (PENTA) stent in patients with coronary artery disease.Methods From March to June 2002, thirty PENTA stents were implanted in 28 patients with 30 de novo lesions. For each patient the demographic, interventional and mean 3 month follow up informations were recorded. Results Almost two thirds of patients suffered from hypertension(61%) and half experienced unstable angina (53%). Most target lesions(67%) had unfavorable morphological characteristics (type B2 or C). No stent deployment failure occurred as well as acute or subacute stent thromobis.The major branches compromised after stenting were only in 2 patients. During floow up,no MACE occurred, except reoccurrence of chest pain in 2 patients (7%). Conclusions The PENTA stent appears to be safe and effective in treating coronary artery disease.
6.The effects of intra aortic balloon pump in coronary stenting for high risk patients
Qi ZHANG ; Weifeng SHEN ; Jianshen ZHANG
Journal of Interventional Radiology 1994;0(03):-
Objective To evaluate the therapeutic efficacy of intra aortic balloon supporting in coronary interventions for high risk patients with coronary artery disease(CAD).Methods Sixteen high risk CAD patients accepted percutaneous coronary intervention assisted by intra aortic balloon pumping together with clinical variables, procedural and follow up informations were recorded and evaluated. Results All patients presented with severe left ventricular dysfunction, multi vessel disease and high jeopardy scores. 12 patients acquired complete revascularization. Mean duration of balloon pumping was (31?17) minutes. Aortic diastolic and mean pressures were increased during balloon pumping [diastolic:(69?11)mmHg pre.vs (131?15)mmHg post.; mean:(82?13)mmHg pre.vs (111?7)mmHg post., P
7.Assessment of coronary flow reserve in patients with myocardial bridging
Qi ZHANG ; Weifeng SHEN ; Jiansheng ZHANG
Journal of Interventional Radiology 2003;0(S1):-
Objective To evaluate coronary flow reserve (CFR) in patients with myocardial bridging.Methods Between September 2000 and January 2003, thirteen patients were detected myocardial bridging(MB) by coronary angiography(MB group). Another 32 patients with normal coronary arteries were served as a control group. Demographic information and CFR were compared between the two groups. Results All patients in MB group were presented with stable angina pectoris, and the systolic and diastolic coronary compressing stenosis were 78%?7% and 15%?5%, respectively. CFR in MB patients was significantly lower compared with the controls(2.0?0.3 vs 3.3?0.6, P
8.The Summary of 847 Consecutive Patients Underwent Selective Renal Angiography Immediately after Coronary Angiography
Qi ZHANG ; Weifeng SHEN ; Ruiyan ZHANG
Journal of Interventional Radiology 2003;0(S1):-
70), hypertension and multi vessel coronary artery disease.Conclusions Selective renal angiography immediately after coronary angiography is feasible and safe, and it exerts great significance of detection of RAS.
9.Craniofacial tissue characteristics in adult Angle class II malocclusions: cephalometric X-ray measurement
Xiaoguang LI ; Dapeng MAN ; Weifeng QI ; Yu KONG
Chinese Journal of Tissue Engineering Research 2015;19(20):3173-3177
BACKGROUND:Studies have shown that there are large differences in the thickness of the soft tissue overlying hard tissue, and the soft tissue does not uniformly overly the hard tissue, indicating simple hard tissue measurement wil not harvest ideal facial profile in clinical treatment of malocclusions. OBJECTIVE: To study the craniofacial soft and hard tissue characteristics in the adult Angle class II malocclusion, and then to analyze the relationship between Angle class II1 and class II2 malocclusions. METHODS: Sixty patients with adult Angle II malocclusion who were accepted by the Department of Orthodontics of Stomatological Hospital Affiliated to Jiamusi University from 2011 to 2014, on gender parity, aged 18-38 years (mean age of 26.3 years), including 30 cases of Angle class II1 and 30 cases of Angle class II2. Differences between the adult Angle class II1 and class II2 malocclusion patients were compared by cephalometric analysis based on X-ray measurement. Statistical correlation analysis was performed.RESULTS AND CONCLUSION:(1) Comparisons of hard tissue measurement of adult Angle class II1 and Angle class II2 malocclusions showed that: SNB, SND, ANB, FH-NP, U1-SN (P < 0.001), LI-NB (P< 0.01), L1-MP (P < 0.01), U1-L1 (P < 0.001) exhibited statisticaly significant differences between two groups (P < 0.05). (2) Comparisons of soft tissue measurement of adult Angle class II1 and Angle class II2 malocclusions showed that: there were significant differences in the ULA'-FH, LLNs-FH, ULNs-FH, CmSnUL, E-LL (P < 0.05). (3) There was a correlation between the soft and hard tissue of adult Angle class II1 and Angle class II2 malocclusions in al measurement indexes, but the correlativity exists differently. These findings indicate that for Angle class II1malocclusion, the maxilary and anterior teeth protrusions have a certain influence on the position of the lower lip; for Angle class II2 malocclusion, only maxilary protrusion can impact the position of the soft tissue of the lower lip. Chin soft tissue has no major changes in Angle class II2 malocclusion, but it varies greatly in Angle class II1 malocclusion. Clinical treatment of adult Angle class II malocclusions is developed based on the craniofacial soft and hard tissue characteristics in orthodontic and orthognathic surgeries.
10.Research on Surveillance of Drug Resistance of Stenotrophomonas maltophilia from 2005 to 2008
Feng WANG ; Li WANG ; Qi SUN ; Aizhen WANG ; Weifeng XU
Chinese Journal of Nosocomiology 2009;0(23):-
OBJECTIVE To investigate the isolation rate and drug-resistance of Stenotrophomonas maltophilia so as to provide evidence for clinical rational use of drugs.METHODS The strains of S.maltophilia isolated from clinical specimens were identified and tested on drug sensitivity by the VITEK-32 system.Parts of the isolates were tested by disc diffusion method.RESULTS A total of 295 strains were identified during from Jan 2005 to Dec 2008.The most of the were isolated from sputum in clinical samples,and ICU was the main distribution department.The result showed that S.maltophilia had higher resistance rate to most drugs.Levofloxacin had the lowest resistance rate followed by trimethoprim-sulfamethoxazole and ciprofloxacin.CONCLUSIONS S.maltophilia has serious resistance rate to common antimicrobial agent showing mult-drug resistance.We should pay more attention to the status,and rationally choose antibiotics according to the drug susceptibility.