Results Of Balloon Angioplasty Research Articles

Outcomes of balloon angioplasty and stent placement for iliac artery lesions classified as TASC II A, B: a single-center study.

Iliac artery stenosis or occlusion is a critical condition that can severely impact a patient's quality of life. The effectiveness of balloon angioplasty and intraluminal stenting for the treatment of iliac artery lesions classified as TASC II A and B was evaluated in this single-center prospective study. Conducted between October 2016 and September 2020 at Cho Ray Hospital's Vascular Surgery Department, this prospective study involved PAD patients categorized by TASC II A and B classifications who underwent endovascular intervention. Intervention outcomes were assessed peri-procedure and during short-term and mid-term follow-ups. Of the total of 133 patients, 34.6% underwent balloon angioplasty, while 65.4% received stenting. The immediate technical success rate was 97.7%, while the clinical success rate was 62.4%. Complications were minimal, with major limb amputation reported in 1.5% of the cases. There was a significant improvement in Rutherford classification and ABI at short-term follow-up, with a patency rate of 90.2%. The mid-term post-intervention follow-up yielded similar results with an 86.1% patency rate. The mortality rates associated with arterial occlusion were 2.3% during short-term follow-up and 1.7% during mid-term follow-up. Balloon angioplasty and stent placement are effective and safe interventions for TASC II A and B iliac artery occlusions with favorable short and mid-term outcomes. Further, multi-center studies with larger sample sizes are recommended for more comprehensive conclusions, including long-term follow-up assessment.

РЕНТГЕНОЭНДОВАСКУЛЯРНАЯ ХИРУРГИЯ АТЕРОСКЛЕРОТИЧЕСКИХ ОККЛЮЗИОННО-СТЕНОТИЧЕСКИХ ПОРАЖЕНИЙ ПОВЕРХНОСТНОЙ БЕДРЕННОЙ АРТЕРИИ (ОБЗОР ЛИТЕРАТУРЫ)

Background. Occlusive-stenotic atherosclerotic lesion of the superficial femoral artery is the most common cause of the development of chronic ischemia of the lower extremities. Bypass surgery, traditionally performed when conservative treatment fails, is frequently associated with trauma. In this regard, balloon angioplasty and stenting are more promising. However, their outcomes need to be carefully studied. The purpose of the study. To analyze the literature on the results of roentgen-endovascular surgery (balloon angioplasty and stenting) in chronic occlusive-stenotic atherosclerotic lesion of the superficial femoral artery and the influence of different factors on its outcomes. Material and methods. A total of 39 sources of literature were analyzed. Results. The outcomes of balloon angioplasty and stenting of the superficial femoral artery depend on the period of postoperative monitoring, comorbidities and are determined by clinical, anatomical, technical and hemodynamic factors. For the moment the search for ways of restenosis and reocclusion prevention in the areas of X-ray endovascular interventions is very relevant. Conclusions. The outcomes of balloon angioplasty and stenting of the superficial femoral artery depend on the timing of postoperative monitoring and are determined by clinical, anatomical, technical and pathophysiological factors. The search for ways to prevent restenoses and reocclusions in the areas of X-ray endovascular interventions is relevant.

Effect of coarctation of aorta anatomy and balloon profile on the outcome of balloon angioplasty in infantile coarctation

ObjectiveCoarctation of the Aorta (CoA) is a relatively common cardiovascular disorder. The present study aimed to evaluate the effect of COA anatomy and high versus low-pressure balloons on the outcome of balloon angioplasty among neonates and infants.MethodsIn this retrospective study, the neonates and infants undergoing balloon angioplasty at Namazi hospital were enrolled. After balloon angioplasty, immediate data results were promptly recorded.Moreover, midterm echocardiographic information was collected via electronic cardiac records of pediatric wards and clinical and echocardiographic data at least 12 months after balloon angioplasty. Finally, data were analyzed using SPSS-20.ResultsIn this study, 42 infants were included. The median age at the time of balloon angioplasty was 1.55 (range 0.1–12) months and 66.7% of the patients were male. The mean pressure gradient of coarctation was 38.49 ± 24.97 mmHg, which decreased to 7.61 ± 8.00 mmHg (P < 0.001). A high-pressure balloon was used in 27, and a low-pressure balloon was used in 15 patients. COA's pressure gradient changed 30.89 ± 18.06 in the high-pressure group and 24.53 ± 20.79 in the low-pressure balloon group (P = 0.282). In the high-pressure balloon group, 14.81% and in the low-pressure group, 33.33% had recoarctation and need second balloon angioplasty (p < 0.021). The infant with discrete coarctation had a higher decrease in gradient and lower recoarctation.ConclusionRecoarctation rate was lower in the high-pressure balloon. The infant with discrete COA had a better response to the balloon with more decrease in gradient and lower recoarctation rate. Therefore, the stenotic segment anatomy needs to be considered in the selection of treatment methods.

Outcomes of balloon angioplasty for failing upper extremity dialysis access

Background Percutaneous transluminal angioplasty (PTA) is the mainstay of treatment in stenosed hemodialysis access. Being less invasive and outpatient procedure, PTA is a safe and useful intervention to maintain access patency in patients with failing hemodialysis arteriovenous fistulas (AVFs). The aim of this study was to evaluate the efficacy of balloon angioplasty in treatment of patients with failing upper extremity hemodialysis access. Methods This is a prospective study of all adult patients who underwent balloon angioplasty for the treatment of patients with symptoms of a failing dialysis access due to presence of significant stenosis in dialysis access circuit. The study conducted at the Department of Vascular and Endovascular Surgery, Assiut University Hospital (a tertiary referral hospital), between January 2017 and December 2018. Both the primary and assisted primary patency rates were analyzed by the Kaplan-Meier plot method. Results 149 patients underwent PTA for treatment of failing dialysis access symptoms. The most common site of stenosis in our study was the juxta-anastomotic site (49 %). The overall success rate was 96.6%. Balloon angioplasty was performed in all patients without stent placement. Sixteen (10.7%) complications were encountered in the study. At 1 year, the primary patency and the assisted primary patency rates was 60.5% and 80%, respectively. Age of the fistula (P=0.017), presence of multiple lesions (P=0.016), total lesion length >5cm (P=0.030), and diabetes mellitus (P=0.012) were significant independent predictors of loss of primary patency. Conclusions Balloon angioplasty is safe and effective treatment modality for treatment of stenosis in failing hemodialysis access patients with good technical success and acceptable short-term primary patency rates. Repeated interventions are required to maintain patency.

Ambiguous results of balloon angioplasty for central vein stenosis in hemodialysis patients with native arteriovenous fistula

Objective : to conduct comprehensive comparative analysis of the patency rate of native arteriovenous fistula (AVF) for central vein stenosis (CVS) after endovascular balloon angioplasty and palliative surgery. Materials and methods . The retrospective study included 80 patients with confirmed central vein stenosis: subclavian, brachiocephalic veins, inferior vena cava, or multiple lesions. The experimental group included 39 patients who underwent percutaneous balloon angioplasty. The control group included 41 patients who, for various reasons, did not do balloon angioplasty, but underwent palliative interventions: thrombectomy, proximalization of arteriovenous anastomosis, AVF blood flow-reducing surgical procedures. Results . Primary patency (time interval between the first intervention for CVS and the second intervention) in the experimental group was 61.5% [95% CI 44.5; 74.7] and 15.4% [95% CI 6.2; 28.3] at 6 and 12 months, respectively. In the control group, it was 39% [95% CI 24.3; 53.4] and 0% respectively. Hazard ratio (HR) 0.5337 [95% CI 0.3381; 0.8427], log-rank test p = 0.0011. No differences in functional primary patency (time interval between the start of using AVF and the first intervention for CVS) were found: 89.7% [95% CI 74.9; 96] and 30.8% [95% CI 17.3; 45.4] at 1 year and 3 years, respectively, in the experimental group, and 80.5% [95% CI 64.8; 89.7] and 24.4% [95% CI 12.7; 38.2] in the control group. There were no differences between the groups HR 0.7695 [95% CI 0.4952; 1.196], log-rank p = 0.2259. In the experimental group, strong negative correlation between primary patency and functional primary patency was detected: r = –0.627 [95% CI –0.787; –0.388], p < 0.0001. In the control group, no such correlation was found: r = 0.049 [95% CI –0.262; –0.351], p = 0.7599. Thus, the later CVS developed, the less effective balloon angioplasty was. Balloon angioplasty significantly increased duration of AVF use after first intervention for CVS (secondary patency): 84.6% [95% CI 68.9; 92.8], 66.7% [95% CI 49.6; 79.1] and 17.9% [95% CI 7.9; 31.3] at 6, 12 and 24 months, respectively in the experimental group. In the control group, it was 56.1% [95% CI 39.7; 69.6], 19.5% [95% CI 9.2; 32.7] and 0%. HR 0.4009 [95% CI 0.2481; 0.6477], log-rank p < 0.0001. Functional secondary patency (total duration of AVF use) was: 100%, 74.4% [95% CI 57.6; 85.3] and 12.8% [95% CI 4.7; 25.2] at 1, 3 and 5 years in the experimental group, and 95.1% [95% CI 81.9; 98.8], 36.6% [95% CI 22.3; 51] and 4.9% [95% CI 0.9; 14.5] in the control group. HR 0.5661 [95% CI 0.3598; 0.8906], log-rank p = 0.0067. Conclusions . 1. Central vein stenosis inevitably cuts vascular access from the ipsilateral side. 2. Balloon angioplasty allows to slightly prolong AVF use but it cannot radically change the long-term results of CVS treatment. 3. The outcome of balloon angioplasty greatly depends on the length of the period from the time the use of AVF started to the time CVS developed. 4. Multiple repeated balloon angioplasties are apparently justified in patients for whom creating a new vascular access might not be possible. 4. AVF volumetric blood flow velocity is an important factor determining the severity of CVS clinical manifestations and whether repeated surgical interventions are needed.

Abstract WP177: Long-Term Outcome of Balloon Angioplasty and Stenting for Symptomatic Intracranial Atherosclerotic Stenosis: Comparison Between Pre- and Post-Approval of Wingspan Stent

Purpose: Intracranial atherosclerotic stenosis (ICS) is an important cause of ischemic stroke, particularly in the Asian population. Endovascular treatment, such as balloon angioplasty with and without stenting have emerged as therapeutic options for symptomatic (ICS) since the 1990s and the Wingspan stent was approved at 2014 in Japan. This study was to investigate the periprocedural complication rates, long-term outcome and restenosis of endovascular treatment for ICS in our hospital. Methods: We retrospectively analyzed the clinical data of 223 patients with 265 endovascular treatments for high-grade (more than 70%) symptomatic ICS between 1999 and 2017. The lesion was located in in the internal carotid artery in 79, the middle cerebral artery in 113, the basilar artery in 29 and the vertebral artery in 42. Patients were classified into two groups, before (A group, between 1999 and 2013) and after approval of Wingspan (B group, between 2014 and 2017). We selected mainly balloon angioplasty without stenting in the primary treatment. Perioperative and long-term outcomes such as restenosis and the recurrence of strokes were assessed. Results: In A group (n=163, aged 63.5±10.2 years), 157 lesions were treated with balloon angioplasty and 31 (16.5%) with coronary stent. In B group (n=60, aged 66.4±13.3 years), 39 lesions were treated with balloon angioplasty and 38 (49%) with Wingspan stent. Overall technical success rates were 96% in balloon angioplasty and 100% in stenting groups. The 30-day rate of stroke, TIA and death were 4.3% in A group and 3.9 % in B group. In B group, there was one patient who had subacute in-stent thrombosis with major stroke and 2 minor strokes. There were no stroke and vascular events during follow-up periods in B group. Eight patients (13%) in B group had restenosis after the procedure and 7 patients were retreated. Conclusions: This study demonstrates the safety and efficacy of balloon angioplasty with and without stenting for symptomatic intracranial atherosclerotic stenosis if patients are properly selected. We suggest that a more judicious use of intracranial stents may be responsible for better postprocedure outcome.

Comparison Between Balloon Angioplasty and Surgical treatment for Native Coarctation of the Aorta in Infants

Coarctation of the aorta (CoA) is a discrete stenosis of the proximal thoracic aorta. The common clinical pattern is congestive heart failure in infancy. Treatment methods include balloon angioplasty (BA) and surgical repair in this age group. Percutaneous balloon angioplasty is a less invasive method for the repair of discrete coarctation but remains controversial as a primary treatment strategy for a native coarctation.&#x0D; This study aimed to compare the effectiveness and outcome of balloon angioplasty and surgical repair in infants with coarctation of the aorta younger than one year old.&#x0D; Methods. Between January 2011 and December 2017, 59 patients with native aortic coarctation were treated in National Amosov Institute of Cardiovascular Surgery. This retrospective study evaluated the results of the two methods in patients younger than one year old with the diagnosis of coarctation of the aorta. Group 1 included 18 patients who accepted balloon dilatation for discrete coarctation. Group 2 included 41 patients who underwent surgical resection with end-to-end anastomosis. Patients with complex cardiac anomalies were not included in this study.&#x0D; Results. Immediate results revealed no significant difference in the effectiveness of the two methods (p value =0.06). While the rate of recurrent coarctation was significantly lower in the surgery group [1 (2,4%) vs. 13 (72,2%), p value =0.0017]. The mean hospital stay was 6.4±3.6 days in the balloon angioplasty group and 21.5±8.7 days in the surgery group, which constitutes a significant statistical difference (p value &lt;0.05). Aneurysm formation was not encountered.&#x0D; Conclusion. Both surgical repair and balloon angioplasty for native coarctation of the aorta in infants were effective and beneficial. These data suggest that balloon angioplasty can be acceptable alternative to surgical treatment but due to the high level of recoarctation this method may be considered in critically ill infants with congestive heart failure as a primary palliative procedure. The limitations of this study were its retrospective, nonrandomized nature, and smaller case numbers.

Small Dense Low Density Lipoprotein Particles Are Associated with Poor Outcome after Angioplasty in Peripheral Artery Disease

PurposeIn patients suffering from symptomatic peripheral artery disease (PAD), percutaneous revascularization is the treatment of choice. However, restenosis may occur in 10 to 60% in the first year depending on a variety of factors. Small dense low density lipoprotein (sdLDL) particles are associated with an increased risk for cardiovascular events, but their role in the process of restenosis is not known. We conducted a prospective study to analyze the association of sdLDL particles with the outcome of balloon angioplasty in PAD. The composite primary endpoint was defined as improved walking distance and absence of restenosis.MethodsPatients with angiographically documented PAD of the lower extremities who were scheduled for lower limb revascularization were consecutively recruited for the study. At baseline and at three month follow-up triglyceride, total cholesterol, LDL size and subclasses and HDL cholesterol and ankle-brachial index (ABI) were measured. Three months after the intervention duplex sonography was performed to detect restenosis.ResultsSixty-four patients (53% male) with a mean age of 68.6±9.9 years were included. The proportion of small- dense LDL particles (class III and IV) was significantly lower (33.1±11.0% vs. 39.4±12.1%, p = 0.038) in patients who reached the primary end-point compared with those who did not. Patients with improved walking distance and without restenosis had a significantly higher LDL size at baseline (26.6±1.1 nm vs. 26.1±1.1 nm, p = 0.046) and at follow-up (26.7±1.1 nm vs. 26.2±0.9 nm, p = 0.044) than patients without improvement.ConclusionsSmall-dense LDL particles are associated with worse early outcome in patients undergoing percutaneous revascularization for symptomatic PAD.

Late outcomes of balloon angioplasty and angioplasty with selective stenting for superficial femoral-popliteal disease are equivalent

Late outcomes of balloon angioplasty and angioplasty with selective stenting for superficial femoral-popliteal disease are equivalent

Balloon Angioplasty Optimization: Should We Measure Balloon Volume As Well As Pressure?

To investigate the influence that measurement of balloon volume as a controlled variable in addition to balloon pressure has on the outcome of balloon angioplasty in an experimental model. One hundred and three segments of explanted normal porcine carotid arteries were obtained. Five were used as controls, and the remaining 98 were subjected to balloon angioplasty with simultaneous measurement of balloon volume and pressure. These arteries were randomized into two groups. In one group the endpoint of the angioplasty was determined by balloon pressure (pressure-limited group, PLG) and in the other group by balloon volume (volume-limited group, VLG). Pressure/volume curves for each procedure were constructed by continuous measurement of both parameters by a purpose-designed computer-controlled inflation device. The diameter of each arterial segment was measured by intravascular ultrasound (IVUS) and the ratio of the inflated balloon to arterial diameter calculated. Arterial appearances after angioplasty were recorded using IVUS. The balloon volumes measured at the endpoint of angioplasty were significantly smaller in the PLG compared with the VLG (p < 0.001). Three types of pressure/volume curves were identified: A, B, and C. In the type A curves, IVUS identified fissures in 28% (17/60) and the examination was normal in 72% (43/60). In the type B curves, IVUS identified fissures in 44% (4/9), dissections in 22% (2/9), and the examination was normal in 33% (3/9). In the type C curves, IVUS identified fissures in 44% (4/9) and dissection in 56% (5/9) with no normal examinations. In undamaged arterial segments a very high correlation was achieved between balloon volume and the balloon/artery ratio (Pearson correlation = -0.979, R(2) = 0.957, p < 0.0001, n = 27). The measurement of pressure and volume during angioplasty enabled the construction of pressure/volume curves that showed deviations from the curves obtained in air. The balloon volume results, and significant deviation of the curve shape from the control curve shape, predicted vessel damage, which was confirmed by the IVUS appearance of the vessel after angioplasty. When pressure was used as the endpoint of balloon inflation the balloons were significantly underdilated compared with the manufacturer's nominal sizes. These data indicate that monitoring of pressure and volume during angioplasty may provide an alternative method of predicting vessel damage.

Outcomes of transcatheter balloon angioplasty of obstruction in the neo-aortic arch after the Norwood operation.

Obstruction of the reconstructed aortic arch, or the neoaortic arch, is now known to be an important factor increasing mortality after the Norwood operation for hypoplastic left heart syndrome. Transcatheter balloon angioplasty has been shown to provide effective relief of both native aortic coarctation and obstructions of the aortic arch occurring subsequent to therapeutic intervention. We sought to determine the outcomes of balloon angioplasty used as an initial treatment for obstruction of the neoaortic arch occurring after the Norwood operation. We gathered the characteristics of 58 patients with such obstruction from 8 institutions, noting procedural factors and outcomes of initial balloon dilation. Obstruction occurred at a median interval of 4 months, with a range from 1.5 months to 6.3 years, after a Norwood operation. Ventricular dysfunction was present before dilation in 13 patients. Mean peak to peak systolic pressure gradients were acutely reduced from 31+/-20 mm Hg to 6+/-9 mmHg (p<0.001), with outcome subjectively judged to be successful in 89%. Three patients with pre-existing ventricular dysfunction died within 48 hours of dilation. There were 10 additional deaths during the period of follow-up, with Kaplan Meier estimates of survival after intervention of 87% at 1 month, 77% at 12 months, and 72% after 15 months. In addition, 9 patients required re-intervention during the period of follow-up, with Kaplan Meier estimates of freedom from re-intervention after dilation of 87% at 6 months, 78% at 12 months and 74% after 18 months. Although transcatheter dilation of neoaortic arch obstructions after Norwood operation is successful, there is a high risk of re-intervention and ongoing mortality in this subgroup of patients. Close follow-up is recommended.

Safety and efficacy of treatment with platelet GPIIb/IIIa receptor blockade in unstable angina patients awaiting PTCA at a referring clinic.

BACKGROUND: Although balloon angioplasty has assumed an important role in the management of refractory unstable angina (UA), that is, UA that does not respond to conventional therapy, it is limited by complications related to thrombosis and acute coronary occlusion. The complication rate is higher in patients with UA than in those whose condition is stable. Preprocedural use of abciximab, a monoclonal platelet glycoprotein IIb/IIIa receptor blocker, has been used effectively in patients with UA, but its acceptance may be limited by safety concerns and economic constraints. The current trial investigated a protocol for abciximab pretreatment in patients with UA awaiting transfer from referring hospitals to a site of intervention (the 'drip and ship' protocol). AIMS: This observational study was conducted to evaluate whether a prophylactic, preprocedural regimen of abciximab can be safely and effectively administered to UA patients in referring hospitals while awaiting coronary angioplasty at the interventional clinic. METHODS: From April 1996 to December 1998, 168 consecutive patients with refractory UA (Braunwald class II or III) received abciximab prospectively at the referring clinic before undergoing PTCA or stent implantation at the interventional clinic. The following cost-conscious protocol was used: a 0.25 mg/kg bolus of abciximab followed by 10 micro g/min intravenously for 16 hours, in addition to intravenous nitrates, heparin and aspirin therapy. Patients were then transferred to a facility with PTCA capability via high-speed ambulance transport. No specific alterations of routine-transfer protocol were needed. Platelet aggregation studies were conducted during abciximab infusion. All interventions were performed while abciximab was given. Procedural and clinical success and long-term outcomes also were assessed. RESULTS: The primary angiographic success rate (patients with post-PTCA diameter stenosis < 50%) was 98%, and the in-hospital clinical success rate (angiographic success without major complications) was 98%. No major bleeding complications occurred during the abciximab pretreatment period. Platelet aggregation findings in the study patients showed a stable inhibition of >80% at the time of angioplasty. At 30-day follow-up, all patients were alive and 91% were free of major adverse events. Outcomes of balloon angioplasty and stenting were equally favorable, indicating no device-specific effect. Event-free survival at six months was 89% with a target vessel revascularization rate of 10%. CONCLUSION: Abciximab was administered safely and effectively to angioplasty patients with refractory UA awaiting transfer from a noninterventional setting to the site of angioplasty. These results extend the current knowledge base that has been established in randomized trials performed in interventional centers. The study protocol potentially could make abciximab therapy more feasible economically, and therefore more widely available to patients who are most likely to benefit from prophylactic administration.

Effect and Outcome of Balloon Angioplasty and Stenting of the Iliac Arteries Evaluated by Intravascular Ultrasound

Objectivesto document the mechanism of percutaneous transluminal angioplasty (PTA) and stenting of the iliac arteries, and to relate the effect to patency.Materials and methodsthirty-seven stenotic iliac arteries were examined by intravascular ultrasound (IVUS) and arteriography before and after PTA, and after stent deployment (n=16). The patients were followed prospectively by duplex scanning at 3, 6, 12, 18 and 24 months after the intervention.Resultsthe effect of PTA was established by both compression and stretching with the major contribution arising from stretching. There were differences in the effect of PTA dependent on plaque morphology: in homogeneous eccentric lesions, stretching contributed significantly more than compression to the luminal gain, while stretching and compression contributed equally in concentric or heterogeneous plaques. Stenting of the arteries had no effect on the free luminal area as measured by IVUS. The primary 1-year patency rate was 72%. The patency was related to the free luminal area and diameter and the heterogenicity of the plaque as evaluated by IVUS. The arteriographic measurements did not have any predictive value.ConclusionIVUS was able to document the effect of PTA and stenting in the iliac arteries, and predict the outcome. The luminal gain and reduction in degree of stenosis seemed to be accomplished primarily by stretching of the arteries and to a lesser extent by plaque compression. Stenting did not change the IVUS measurements. Patency was related to the size of the free lumen and the heterogenicity of the plaque.

Improved outcome of balloon angioplasty with intracoronary ultrasound guidance — Core lab angiographic and ultrasound results from the CLOUT study

Improved outcome of balloon angioplasty with intracoronary ultrasound guidance — Core lab angiographic and ultrasound results from the CLOUT study

Neointimal coverage of stents in human coronary arteries observed by angioscopy

Objectives. The aim of this study was to reveal the time course of the neointimal coverage of stents placed in the human coronary arteries.Background. In deciding the protocol of anticoagulant and antiplatelet therapy for patients who undergo stent implantation, the condition of the neointimal coverage of stents should be taken into consideration. However, the time course of the neointimal coverage of stents has not been elucidated in human coronary arteries.Methods. Serial angioscopic observations were performed immediately after stenting, at 8 to 45 days (short-term follow-up) and at 65 to 142 days (long-term follow-up) in patients who underwent implantation of the Wiktor coronary stent in the restenotic lesion or in the lesion of acute or threatened closure after balloon angioplastyResults. Angioscopic observations were successfully performed in 14 cases immediately after stenting, in 11 cases at short-term follow-up and in 13 cases at long-term follow-up. Immediately after stenting and even at 8 to 18 days after stenting, the stent was not covered by the neointimal layer in any case. However, at 65 to 142 days after stenting, the stent was covered by the neointimal layer in all cases. Angioscopically, three types of neointimal layer were recognized: a white layer with a cottonlike surface in three cases, a white layer with a smooth surface in eight cases and a transparent layer with a smooth surface in two cases.Conclusions. Although some experimental results in animals have shown completion of neointimal coverage of stents in a few weeks, in this serial angioscopic follow-up study, the completion of neointimal coverage of stents in human coronary arteries required ~3 months.

Coarctation of Aorta Managed by Balloon Angioplasty

A retrospective study was carried out on 50 patients at Paediatric cardiology unit of Combined MilitaryHospital, Dhaka to analyze the outcome of balloon angioplasty of coarctation of aorta. The study periodextended over two years starting from January 2007. Age of the patient varies from 7 days to 28 years. Twentytwo (44%) patients were female and rests were male. Native coarctation was in 44 cases (88%) and postsurgical re-coarctation was in 5 cases (10%). Neonatal critical coarctation was 19 (38%). Twelve (24%) caseswere detected when they were investigated for hypertension. Abdominal coarctation was found in 6 cases(12%). Multiple coarctations were found in 3 (6%) cases. Two cases (4%) had balloon angioplasty twice asthey developed re-coarctation. No intra-operative or post-operative complication was observed in any cases ofthis series. Data were collected by chart review. No test was performed on any of the subjects as part of studyprotocol. Coarctation balloon angioplasty of coarctation of aorta is a safe and effective measure to treatcoarctation of aorta.Key words: Balloon angioplasty; coarctation of aorta.DOI: 10.3329/jafmc.v6i1.5983Journal of Armed Forces Medical College, Bangladesh Vol.6(1) 2010 p.4-7