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

Objective To evaluate the role of intravasc ular ultrasound (IVUS) in determining strategy for coronary artery stenosis of intermediate severity.Methods The study population consisted of 75 patients who had de novo coronary lesions of intermediate severity (40% to 70% diameter stenosis) in coronary angiography. IVUS examination was performed in all patients using standard methodology. Minimal lumen cross-sectional area (MLA) ≤ 4.0- mm 2 or percent area stenosis≥60% were identified as an IVUS index of functionally severe coronary stenosis, and used as an indication of coronary stenting. Major adverse cardiac events (cardiac death, acute myocardial infarction and recurrent angina) and the use of nitrates were recorded during follow-up. Results There were 44 patients (59%) with functional coronary artery stenosis, and all underwent successful coronary stenting. Acute coronary syndromes, soft plaque and positive coronary arterial remodeling were more common compared with the remaining 31 patients (41%) only treated medically. During a mean of (14?7) months of follow-up, there was no cardiac death and acute myocardial infarction. Readmission occurred in 5 patients (11%) due to in-stent restenosis in patients with interventional therapy and 4 patients (13%) due to exacerbation of coronary artery stenosis in patients with medical therapy. The use of nitrates was discontinued in 18(41%) and 14(45%) patients treated with interventional therapy and medical therapy, respectively. Conclusions It is valuable to perform IVUS examination in clinical decision making for intermediate coronary artery stenosis. IVUS criteria of MLA≤ 4.0- mm 2 or area stenosis≥60% may be a reliable index of functional coronary stenosis, determining the therapeutic strategy in patients with intermediate coronary artery stenosis.

Objective To evaluate the clinical efficacy of coroflex (BRAUN, Germany) intracoronary stent. Methods To retrospectively analyze the immediate angiographic and clinical follow-up outcomes of 81 patients (pts) receiving coroflex intracoronary stenting. Results 88 coroflex intracoronary stents were implanted in 81 pts. According to ACC/AHA classification, 38 lesions were type A-B 1, 50 lesions were type B 2-C. 52 lesions were de novo, 22 were suboptimal results after PTCA and 14 lesions were bailout for dissections. Stent deployment was successful in 82/88 (93.2%). High-pressure (16-18 atm) balloon was used for stent deployment in 3 lesions with severe calcification. Dissection was occurred at distal of stent in 2 lesions but no inducing flow reduction. Angiography showed TIMI 2 grade after intracoronary stenting in 1 diffused lesion. There were no adverse events occurred during hospital stay. Clinical follow-up of in 75 pts were conducted for 7.5?3.0 (3-13) months, there were no cardiac death or myocardial infarction reported. Complain of angina (CCS class Ⅰ) occurred in 17 pts (22.7%). Repeat angiography was performed in 7 pts, there were 2 in-stent restenosis with successful revascularization. Conclusion Coroflex intracoronary stenting appears to be safe and effective in the treatment of coronary lesions with favorable outcomes.

0.05). However, compared with group II, group I had higher cardiac event rates (34.6% vs 20.4%, P =0.020). Conclusion Coronary stenting in ostial lesions may have similar procedural success rate, but less late benefit, compared with that in nonostial lesions.

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

50% and was classified as in-stent if inside stent or in-segment if located within the stented segment plus the 5 mm segments distal or proximal to the stent margins. Results Among the 8 patients included in this analysis, 5 had in-segment restenosis and 3 had in-stent restenosis (2 were not real in-stent restenosis and were just due to underexpansion). IVUS showed all restenosis occurred as localized lesion. Conclusion Restenosis after drug-eluting stents implantation is frequently associated with local trauma outside the stented segment and incomplete lesion coverage by the drug-eluting stent. Restenosis usually occurs proximal to the stent and presents as a localized lesion.

Objective To explore the principle and methods of surgical management of acute distal colon obstruction caused by colorectal cancer.Methods The data of the cases who received one stage resection in our hospital were analyzed retrospectively,and their surgical management was evaluated comprehensively.Results 34 patients received one stage resection and anastomosis and 6 received delayed anastomosis.All the patients were cured,and no anastomosis fistula or other complications occurred except for 3 cases who were complicated with infection.Conclusion One stage resection and anastomosis was safe for the patients of colorectal cancer complicated with acute disatal colon obstruction as long as the indications were determined appropriately.Colonic irrigation during the operation is essential for one stage anastomosis.

75mmHg) underwent PBMV using standard Inoue technique, and the changes in clinical functional status and echo Doppler pulmonary systolic pressure during follow up were assessed. Results PBMV was successful in 39 patients. Immediately after the procedure, mitral valve area increased from (0.83?0.12)cm 2 to (1.75?0.11)cm 2 ,pulmonary systolic pressure decreased from (85?7)mmHg to (61?13)mmHg (all P

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.

Objective To compare the clinical utility of s7 and s670 intracoronary sents in the management of patients with coronary artery disease. Methods The clinical follow-up outcomes of 68 patients after implantation of s7 (n=32; group Ⅰ) and s670 (n=36;group Ⅱ) intracoronary stents were retrospectively analysed. Results The successful procedure rates were 100% in group Ⅰ and 97.2% in groupⅡ. The follow-up period was six months for both groups. In group Ⅰ, there were no death, no re-infarction and no revascularization but 2 patients experienced reccurrence of angina ( 6.25%). In group Ⅱ, there were 1 death, 1 patient undergoing revascularization, 3 patients suffering from reccurrence of angina ( 13.8%). Conclusions Both s7 and s670 intracoronary stents appear to be safe and effective in the treatment of coronary lesions with favorable outcomes.