Response of blood pressure after percutaneous transluminal renal artery angioplasty and stenting

AIM: To evaluate the short and intermediate term out-come of percutaneous transluminal renal artery angioplasty (PTRA) and stenting particularly on blood pressure (BP) control and renal function and to evaluate predictors of poor BP response after successful PTRA and stenting. METHODS: We conducted a prospective analysis of all patients who underwent PTRA and stenting in our institute between August 2010 to September 2012. A total number of 86 patients were underwent PTRA and renal stenting. Selective angiography was done to confirm at least 70% angiographic stenosis. The predilatation done except few cases with critical stenosis, direct stenting was done in the rest of cases. All patients received aspirin 325 mg orally, and clopidogrel 300 mg orally within 24 h before the procedure. Heparin was used as the procedural anticoagulant agent. Optimal results with TIMI-Ⅲ flow obtained in all cases. Following stent placement, aspirin 150 mg orally once daily was continued for a minimum of 12 mo and clopidogrel 75 mg orally once daily for at least 4 wk. The clinical, radiological, electrocardiography, echocardiography and treatment data of all patients were recorded. The BP measurement, serum creatinine and glomerular filtration rate (GFR) were recorded before the procedure and 1 and 6 mo after PTRA. RESULTS: A total of 86 patients were included in the study. The mean age of study population was 55.87±11.85 years old and 67 (77.9%) of patients were male. There was a significant reduction in both systolic and diastolic BP at 1 mo after the procedure: 170.15±20.10 mmHg vs 146.60±17.32 mmHg and 98.38±10.55 mmHg vs 89.88±9.22 mmHg respectively (P=0.0000). The reduction in BP was constant throughout the follow-up period and was evident 6 mo after the procedure: 144.23±18.19 and 88.26±9.79 mmHg respectively (P=0.0000). However, no improvement in renal function was observed at any time during the follow-up period. After multivariate analysis, we found male sex, low GFR (<60 mL/min) and higher baseline mean BP as a poor predictors of successful outcome on BP response after PTRA and stenting. CONCLUSION: The PTRA and stenting can be considered as an effective therapeutic intervention for improving BP control with minimal effect on renal function. The male sex, higher baseline BP and low GFR are associated with poor BP response after successful PTRA and stenting.

Clinico-Angiographic Profile and Prevalence of Restenosis in Patients Undergoing Percutaneous Transluminal Coronary Angioplasty to Left Main Coronary Artery: An Observational Cohort Study

Background: Patients who underwent percutaneous coronary intervention in left main coronary artery (LMCA) requires special concern, being high risk and increasing patient population. The aim of this study was to assess the clinical profile, angiographic status, and prevalence of restenosis in patients who underwent percutaneous transluminal coronary angioplasty (PTCA) in LMCA. Materials and Methods: This observational cohort study included 17 patients who underwent PTCA in LMCA during one-year study period at tertiary care centers in Government Medical College, Kozhikode, India. Data including various risk factors, clinical and angiographic details, stent used, procedural complications and outcomes including rate of restenosis were analyzed. Results: A total of 17 patients (mean age 53.88 ± 9.80 years) with 76.47% of males were included in the study. Smoking and hypertension were the most common risk factors presented in 52.94% and 47.06% of patients respectively. Single vessel disease (SVD) of LMCA was the most common pattern observed in 47.10%;the rate of restenosis was observed in 11.76% patients. Revascularization was performed in one patient (5.88%) with coronary artery bypass graft and in one patient (5.88%) with PTCA using drug eluting stent (DES). The overall procedural success was 88.24% in this study. Survival rate was 100% at one-year follow-up period. Conclusion: Our study involved patients who underwent PTCA in LMCA, showed smoking as a most prevalent risk factor for coronary artery disease and SVD as a most common pattern, comparatively low rate of restenosis and 100% of survival rate at one-year follow-up period.

Study of Traditional Chinese Medicine in Intervening Vascular Remodeling after Percutaneous Transluminal Coronary Angioplasty

Interventional therapy of coronary heart disease (CHD) includes percutaneous transluminal coronary angioplasty (PTCA), stent implantation etc. Owing to its revascularization without cardiac surgery, it has been the main effective method in treating CHD. But at the same time, there exists the problem of restenosis (RS). After PTCA, RS

CLINICAL APPLICATIONS OF PERCUTANEOUS TRANSLUMINAL CORONARY ANGIOPLASTY

Percutoneous transiuminal coronary anginplesty(PTCA)was performed in33 patients of coronary heart diseases(male 30 cases,female 3 cases, meanage 54.2) with Gruentzig’s method.Of all the 33 patients,there were 26narrow parts in 20 cases of the single branch lesions,27 narrow parts in 11cases of the double branch lesions and 11 narrow parts in 2 cases of thethree branch lesions.In 48 branches with lesion vessels,there were 27branches of the left anterior descending coronary arteries (LAD),7 branchesof the left cicumflex coronary arteries(LCX)and 13 branches of the rightcoronaw arteries.The narrow degrees varied from 75% to 100%. The resultswere that,of 33 patients,48 branches of lesion vessels and 64 narrow parts,the successful rates of dilation were 96.9%,87.5%,85.9%,respectively.Ventricular fibrillation occurred in one case during the procedure,whichsoon recovered sinus rhythm through cardioversion.Symptoms of thesuccessful 32 patients were lmproved obviously or diappeared after PATC.Combining with the documents,we think that the successful rates are higherin type A lesion undergoing PTCA.When PTCA for the multiple branchlesions are performed,we ought to master the principle of dilating the mainlessinos in advence.The long-tube lesions were dilated by the long balloonfitting for these lesions.The causes of failure of PTCA in the severe narrowlesions are mainly the the guilding wires or the balloon catheters cann’t passthrough the lesion parts,in addition,the complication problems in PTCA arealso discussed.

Amiodarone-induced bronchiolitis obliterans organizing pneumonia in patient following percutaneous transluminal coronary angioplasty

Background: Many patients are affected by idiopathicbronchiolitis obliterans organizing pneumonia (BOOP). There are several known causes of BOOP, and several systemic disorders have BOOP as an associated primary pulmonary lesion. Numerous agents including cytotoxic and noncytotoxic drugs have the potential to cause pulmonary toxicity. Descriptions of amiodarone-related BOOP continue to be reported throughout the world. Case Report: We reported a patient with original clinical presentation who developed recurrent sustained ventricular tachycardia (SVT) despite the presence of implantable cardioverter-defibrillator (ICD), hypoxaemia and interstitial pneumonitis in both lung bases. After percutaneous transluminal coronary angioplasty, he developed bronchiolitis obliterans organizing pneumonia (BOOP). Conclusions: To our knowledge, such complications after percutaneous coronary procedure in patients with amiodarone therapy for arrhythmia prophylaxis, are not very frequent in literature.

CHANGES AND SIGNIFICATION OF SERUM CPK BEFORE AND AFTER PERCUTANEOUS TRANSLUMINAL CORONARY ANGIOPLASTY IN PATIENTS WITH CORONARY HEART DISEASES

To study the damage effect of percutaneous transfuminalcoronary angioplasty(PTCA)on myocardium,wedetermined the serum CPK and CPK-MB level in 35 casesof patients with coronary henrt disease(CHD)beforePTCA and at 6th,12th,24th hour,2nd,3rd day afterPTCA.The results showed that after PTCA,the serumCPK and CPK-MB in 21 of 35 case of patients wised at12th hour.2nd day reached the peak level.But comparedwith others,it has no significant different(P】0.05).TheCPK and CPK-MB decreased to normal level at 3rd day.Itis suggested that PTCA has no significant damage effect onmyocardium.

Clinical Application of Percutaneous Transluminal Angioplasty and Stent Implantation in Acute Lower Extremity Deep Venous Thrombosis

Purpose: To analyze the application of percutaneous transluminal angioplasty and stenting in acute deep venous thrombosis of lower extremities. Methods: 70 patients were divided into two groups according to the presence or absence of percutaneous transluminal angioplasty and stenting. Results: The mean circumferential diameter difference between the affected limbs and the healthy limbs and the knees at 15 cm was statistically significant. The cure rate and effective rate of the research group were higher than those of the control group (P<0.05). Conclusion: Percutaneous transluminal angioplasty and stenting are of high value in acute lower extremity deep venous thrombosis.

COMPLEX PERCUTANEOUS TRANSLUMINAL CORONARY ANGIOPLASTY

Percutancous transluminal coronary angioplasty was pcrfonned in 70patients with high risk characteristics from Jan.1998 toDcc.1997 These factors include age】70(10patients),unstableangina(35patients),ejection fraction【40%(7 patients),multivesseldisease(50patients).There were 96 lesions(79 vessels)dilated,amongthem type Alesion 15,type B lesion 52,type C lesion 29.Autoperfusion balloon was used in 7 patients, coronary stcnl wasimplantcd in 50 paticnts.One patient undcrgoing directional coronaryathrectomy(DCA).The clinical success rate was 91.5% and lesionsuccess rate was 89.6%.Average predilation stenosis was 89.5+8.2%and average postdilation stenosis was 16.9+6.2%.Two patients diedfrom abrupt vessel closureno acule myocardial infarction andemergency coronary bypass operation.The considerations in selectionand management of these high risk patients were discussed. The resultsshowed that PTCA can be performed safely in the complex cases.

Long Term Clinical and Angiographic Outcome Following Percutaneous Transluminal Angioplasty and Stent Placement for Iliac and Femoral Artery Stenosis

Objective This study reportsthe initial and late results of percutaneous transluminal angioplasty (PTA) and intravascular stenting for atherosclerotic stenosis of the iliac and femoral arteries. Methods and Results From December 1994 to March 1997, we performed iliac and femoral artery angioplasty and primary intravascular stent placement in 37 vessel of 33 patients (19 men and 14 women; mean age, 70. 5 years). A total of 43 self - expanding Wallstents (Boston, Inc. ) were deployed. All patients underwent angioplasty and stent placement successfully. Clinical follow - up was available for all patients at a mean of 26±14months. All patient clinical is-chemic category (claudication or rest pain) was improved. Angiographic follow - up was completed for 17 of 23 patients at a mean follow-up of 10±5 months, The iliac artery restenosis rate was 0(0/8). The femoral artery restenosis rate was 33 % (3/9), All 3 patients underwent repeat balloon angioplasty successfully. Conclusion The iliac and femoral arteries can be performed and reasonable early and late patency rates.

PTA治疗慢性下肢动脉硬化闭塞症的疗效及支架内再狭窄的影响因素分析

目的:探究经皮腔内血管成形术(PTA)治疗慢性下肢动脉硬化闭塞症(ASO)的疗效及支架内再狭窄的影响因素。方法:回顾性分析行PTA治疗的97例慢性下肢ASO患者的临床资料,分析不同时间踝肱指数(ABI)、血流动力学指标[足背动脉内径、血流速度峰值、血流量]、血清生化指标[总胆固醇(TC)、甘油三酯(TG)、低密度脂蛋白胆固醇(LDL-C)、高密度脂蛋白胆固醇(HDL-C)、超敏C反应单蛋白(hs-CRP)]变化,1年后随访再狭窄情况并分析相关影响因素。结果:慢性下肢ASO患者术后7 d、6个月、1年ABI、足背动脉内径和血流量均高于术前(P<0.05),血流速度峰值均低于术前(P<0.05);术后1年,ABI均低于术后7 d和6个月(P<0.05),足背动脉内径低于术后7 d(P<0.05),血流速度峰值高于术后7 d(P<0.05);血管再狭窄者31例(31.96%),未狭窄者66例(68.04%);再狭窄组术前ABI、术后1年高密度脂蛋白胆固醇(HDL-C)均低于未狭窄组(P<0.05);植入支架≥2个比率、术前甘油三酯(TG)、低密度脂蛋白胆固醇(LDL-C)、术后1年TG、LDL-C、超敏C反应蛋白(hs-CRP)均高于未狭窄组(P<0.05),植入支架长度大于未狭窄组(P<0.05);术前ABI、TG、LDL-C和术后1年TG、LDL-C、HDL-C、hs-CRP均为下肢ASO患者支架内再狭窄的危险因素(P<0.05)。结论:PTA治疗慢性下肢ASO短期疗效显著,但有术后再狭窄风险,术前ABI、TG、LDL-C,术后TG、LDL-C、HDL-C、hs-CRP水平均为下肢ASO患者支架内再狭窄的危险因素。

PTA结合药物溶栓对动静脉内瘘血栓患者术后疗效及内瘘通畅率的影响

目的:评估经皮腔内血管成形术(percutaneous transluminal angioplasty,PTA)结合尿激酶溶栓治疗对动静脉内瘘血栓患者术后疗效及内瘘通畅率的影响。方法:选择2020年1月—2022年7月连云港市第一人民医院肾内科收治的90例动静脉内瘘血栓患者,采用随机数字表法分为对照组和观察组,各45例。对照组接受PTA治疗,观察组接受尿激酶溶栓+PTA治疗。对比两组手术时间、手术成功率、肱动脉平均血流量、内瘘通畅率、凝血功能指标(活化部分凝血活酶时间、凝血酶时间、D-二聚体)、肌酐和血尿素氮水平及不良反应发生率。结果:两组手术成功率、术后肱动脉平均血流量比较,差异均无统计学意义(P>0.05)。术后,观察组内瘘通畅率高于对照组(P<0.05);观察组凝血功能、肌酐和血尿素氮水平均优于对照组,差异均有统计学意义(P<0.05)。两组并发症发生率比较,差异无统计学意义(P>0.05)。结论:尿激酶溶栓结合PTA治疗能够有效改善动静脉内瘘血栓患者的内瘘通畅率和凝血功能。

自体动静脉内瘘狭窄患者PTA手术治疗效果及影响因素

目的:研究超声引导下经皮腔内血管成形术(PTA)手术治疗自体动静脉内瘘狭窄的效果,对治疗效果的影响因素进行分析。方法:回顾性分析2020年1月-2021年12月于南昌市第一医院接受PTA手术治疗的自体动静脉内瘘狭窄患者资料,总结PTA手术治疗临床效果,并根据治疗效果分为成功组和失败组。记录并对比两组基线资料,回归分析超声引导下PTA手术治疗自体动静脉内瘘狭窄失败的相关影响因素。结果:自体动静脉内瘘狭窄患者超声引导下PTA手术治疗失败率为19.05%;失败组性别、年龄、体重指数、原发病、高胆固醇血症、自体动静脉内瘘位置、狭窄类型、内瘘使用时间、原自体动静脉内瘘术式、发现狭窄至PTA时间、血小板、D-二聚体资料与成功组比较,差异均无统计学意义(P>0.05);失败组高血压患病率、糖尿病患病率、血管钙化发生率均高于成功组,血清超敏C反应蛋白水平高于成功组,差异均有统计学意义(P<0.05);logistic回归分析显示,高血压、糖尿病、血管钙化、超敏C反应蛋白水平高是超声引导下PTA手术治疗自体动静脉内瘘狭窄临床效果的相关影响因素(P<0.05)。结论:超声引导下PTA手术治疗自体动静脉内瘘狭窄存在较高的失败风险,与高血压、糖尿病、血管钙化、超敏C反应蛋白水平高有关。

Safety and efficacy of dalteparin in percutaneous coronary intervention in Chinese patients with non-ST-elevation acute coronary artery syndromes： comparison with unfractionated heparin

有希望地与高风险 non-ST-elevation 在病人评估安全和治疗学的功效 ofdalteparin 的目的急性冠的症候群(交流) 在经皮的冠的干预(一种总线标准) 期间。有高风险 non-ST-elevation 交流的 175 个病人的方法 Atotal 随机被分到 2 个组[dalteparin 组和 unfractionated 肝磷脂(UFH ) 组] 。在 dalteparin 组的病人此后不久皮下地在 5,000U 的剂量被给 dalteparin 诊断然后另外的 60U/ kg 在突现的一种总线标准前的静脉内的大丸药 ofdalteparin。脉管的存取鞘在一种总线标准或冠的动脉 angiography 以后立即被移开；如果 angiographic 调查结果证明病人对经皮的 transluminai 合适，组在一种总线标准和一丸另外的 65mg 大丸药前在第 25mgju 的剂量静脉内地被给 UFH 的在 UFH 的病人被管理冠的 angioplasty (PTCA ) 。鞘在一种总线标准以后在 4-6 小时被移开；当在 UFH 组的 82 个病人经历了一种总线标准时，在 dalteparin 的 83 个病人组织的结果经历了一种总线标准；在 dalteparin 组的 52 个病人的 anti-Xa 活动被测量。平均 anti-Xa 活动是(0.83 ????慊煣敵 s ?? 倀汯祬 ??ò楔敧 r 吗？？

CLINICAL APPLICATION OF PERCUTANEOUS BALLOON MITRAL VALVALOPASTY

The operation of PBMV is popular and considecl highlybeacuso of advantages of satisfactory effects andlittle lesion.But there are many difficulties inpractices,such as the balloon can’t be passedthrough the mitral valve eesily.We operated 64patients by the method of big curve in front part ofthe catheter during PBMV and all of the catheterswere passed through the mitral valve in short time,the stenosis valves vere dilated successfully.In myopinion,in order to made a big curve in front partof the catheter,it is vital to change the curve infront part of left ventricular wire according to thesize of left atrium,which can make the catheter havea proper curve to pass the mitral valve.In addition,it is not suitable to puncture the artial ssptum inhigher position,if so,the front part of the catheterin left atrium is parallel or almost parallel to theaitral valve,not in the right angle,so the cathetercan’t be easy to pass through the mitral valve.During the puncturing,the angle of the punctureneedle must be settled properly to reduce thecomplications.We suggest that the degrees of arrowin the puncture needle be set to 45°.60 and 75°separately when the size of left atrium are 4.0cm,5.0cm and 6.0cm.When pueeturing in such degree,thecatheter could be in right angle with the mitralvalve and passed through the valve easily.

Effects of intracoronary arterial injection of tirofiban on no-reflow phenomenon in patients with acute ST-segment elevation myocardial infarction underwent primary percutaneous coronary intervention

Objective: To compare the effect of intracoronary arterial injection of tirofiban and sodium nitroprusside (SNP) on no-reflow phenomenon in patients with acute ST-segment elevation myocardial infarction (STEMI) underwent primary percutaneous coro-nary intervention (PCI). Methods: A total of 68 patients with acute STEMI who had no-reflow phenomenon during PCI were chosen and randomly divided into SNP group (n = 34) and tirofiban group (n = 34). Aiming at no-reflow phenomenon during PCI, with the use of microcatheters, intracoronary arterial injection of tirofiban was given in tirofiban group, while intracoronary bolus of SNP was given in SNP group. Coronary angiography was conducted to record TIMI flow grade of the infarct-related artery after 10 minutes. Plasma brain natriuretic peptide (BNP) was monitored before and after PCI (in 24 hours). With the help of ultrasound cardiogram, left ventricular ejection fraction (LVEF), left ventricular end-diastolic dimension (LVEDD) and left ventricular end-systolic dimension (LVESD) were recorded and compared in 30 days after PCI. Results: The ratio of TIMI grade 3 blood flow in tirofiban group was significantly higher than that in SNP group (76.5% (26/34) vs. 52.9% (18/34), p = .03)BNP levels in two groups had no statistical significance before PCI (p = .16), but in 24 h after PCI, BNP levels in tirofiban group were significantly lower than those in SNP group ((439.00 ± 4.90) μmol/L vs. (632.00 ± 3.63) μmol/L, p = .02)In 30 days after PCI, LVEF, LVEDD and LVESD in tirofiban group were all superior to those in SNP group (all p < .05). Conclusions: Intracoronary arterial injection of tirofiban was superior to SNP in improving no-reflow phenomenon in STEMI patients after PCI in the emergency treatment. Tirofiban therapy can increase coronary blood flow and myocardial perfusion after the occurrence of no-reflow phenomenon during PCI in STEMI patients, and improve long-term prognosis.

PTA联合不同支架置入治疗血液透析患者中心静脉狭窄的疗效及其对患者血管通畅情况的影响

目的比较经皮腔内血管成形术(PTA)联合不同支架置入治疗血液透析患者中心静脉狭窄(CVS)的疗效及其对患者血管通畅情况的影响。方法前瞻性选取2017年1月至2022年1月陕西省核工业二一五医院收治的60例CVS的血液透析患者为研究对象,采用随机数表法分为A组和B组各30例。A组患者给予PTA联合裸支架置入治疗,B组患者给予PTA联合覆膜支架置入治疗。比较两组患者的手术情况、再狭窄情况以及手术前后的血液透析流量和血管通畅情况。结果A组和B组患者的手术成功率(93.33%vs 100.00%)、临床有效率(90.00%vs 96.67%)及支架置入部位比较差异均无统计学意义(P<0.05);两组患者术后1个月、6个月及1年的血液透析流量均较术前明显升高,且B组患者术后1个月、6个月及1年的血液透析流量分别为(271.20±72.45)mL/min、(253.24±65.77)mL/min、(231.76±52.89)mL/min,明显高于A组的(225.15±80.93)mL/min、(212.32±76.52)mL/min、(200.38±60.43)mL/min,差异均有统计学意义(P<0.05);A组和B组患者术后1个月、3个月和6个月的血管通畅率比较差异均无统计学意义(P>0.05);B组患者术后9个月、1年的血管通畅率分别为83.33%、76.67%,明显高于A组的60.00%、56.67%,差异均有统计学意义(P<0.05);B组患者的术后1年再狭窄率为10.00%,明显低于A组的33.33%,差异有统计学意义(P<0.05)。结论PTA联合裸支架或覆膜支架置入治疗血液透析患者CVS均具有显著疗效,且PTA联合覆膜支架置入更有助于提高患者血液透析流量及血管通畅率,减少再狭窄的发生。

狼疮肾病尿毒症患者内瘘狭窄PTA术后护理1例

总结1例狼疮肾病尿毒症患者内瘘狭窄血管腔内成形术(percutaneous transluminal angioplasty, PTA)术后的个案护理。邵阳学院附属第一医院血液透析室收治1名狼疮肾病尿毒症内瘘狭窄患者,根据患者特殊情况对症施治,运用个性化护理,并跟踪其效果。术后的血液透析过程中,患者内瘘假性动脉瘤缩小,血管张力变小,搏动可,震颤可,维持理想充足血流量(≥230 mL/min)。通过个性化护理措施,患者术后的内瘘血流理想,能够掌握内瘘狭窄PTA术后的自我护理,也增强了战胜疾病的信心。

超声下经皮腔内血管成形术治疗自体动静脉内瘘狭窄及术后再狭窄的临床研究

目的分析超声下经皮腔内血管成形术(PTA)治疗自体动静脉内瘘(AVF)狭窄的效果。方法选取郑州市第三人民医院血液净化中心的2018年1月-2022年5月期间收治的AVF狭窄者42例作为研究对象进行回顾性分析,均行超声下PTA治疗,收集纳入对象的基线资料以及围术期临床资料,观察手术前后透析血流量、狭窄处血管内径变化,统计临床成功率、技术成功率与并发症发生率、术后3个月、6个月、9个月、12个月初级通畅率、次级通畅率以及术后6个月、12个月的内瘘再狭窄发生率。结果技术成功率为97.61%(41/42);临床成功率达97.56%(40/41);术后3个月、6个月、9个月、12个月初级通畅率分别为94.59%(35/37)、78.38%(29/37)、62.16%(23/37)、51.35%(19/37);术后3个月、6个月、9个月、12个月次级通畅率分别为100.00%(37/37)、97.30%(36/37)、91.89%(34/37)、86.49%(32/37);术后并发症总发生率为13.51%(5/37);术后6个月再狭窄率为21.62%(8/37),术后12个月再狭窄率为48.65%(18/37);术后透析血流速度、狭窄处内径均大于术前(P<0.05)。结论超声下PTA治疗AVF狭窄患者效果显著,可改善内瘘通畅率,增加透析血流速度与狭窄处内径。

PERCUTANEOUS TRANSLUMINAL CORONARY ANGIOPLASTY ITS SUCCESS RATE AND AFFECTING FACTORS

From December 1987 to October 1983, percutaneous transluminal coronary angioplasty (PTCA) was performed in 302 patients with 392 diseased vessels and 440 lesions. The success rate was 93.71% in 302 patients, 94.90% in 392 diseased vessels and 95.00% in 440 lesions. The success rate was 98.92% in Type A lesion, 95.71% in Type B lesion, and 86.57% in Type C lesion (A vs B P=NS, A vs C P<0.01). There were 55 lesions with total or subtotal occlusion, the success rate was 89.09% (93.10% in Type B lesion and 84.62% in Type C lesion). As to the diseased vessels, the success rate was 95.65% in LAD, 94.38% in LCX and 93.75% in RCA. The results showed no significant difference. In this series, acute ischemic complications were found in 6.59% (29 / 440). Of these 29 lesions, 23 were treated successfully, 5 developed Q wave myocardial infarction and 1 died.