The effect of revascularization of a chronic total coronary occlusion on electrocardiographic variables. A sub-study of the EXPLORE trial

Introduction

Chronic total coronary occlusions (CTOs) have been associated with a higher prevalence of ventricular arrhythmias compared to patients without a CTO. We evaluated the effect of CTO revascularization on electrocardiographic (ECG) variables.

Real world perspective of coronary chronic total occlusion in third world countries: A tertiary care centre study from northern India

ObjectivesThe aim of this study is to determine the prevalence, clinical characteristics, angiographic profile and predictors of outcome for percutaneous coronary interventions (PCI) of coronary chronic total occlusions (CTO) in a tertiary referral centre of north India.BackgroundThere is no data on the prevalence and very few reports on clinical characteristics, angiographic profile and outcome of PCI in CTO from India.MethodsRetrospective analysis was done for the data of 12,020 patients undergoing coronary angiography (CAG) between January 2018 to January 2019 at our centre. Detailed baseline clinical, angiographic and revascularization data was collected. Outcome of CTO PCI was also noted. All baseline parameters were analysed for predicting the outcome of CTO PCI.ResultsCTO was identified in 16.3% (1968) patients undergoing CAG and in 24.4% of patients with hemodynamically significant CAD. CTO was predominantly found in LAD (48%) followed by RCA (42.9%) and LCx (25.3%) arterial distribution. Mean JCTO score was 1.93 ± 0.7. PCI as a management strategy was adopted in 456 of 1968 patients (23.1%) and was successful in 340 of 456 (74.6%) of patients. Almost all CTO PCI were attempted by an antegrade approach only. Increasing age, male sex, CTO in LCx arterial distribution and higher J CTO score were associated with poorer outcome in CTO PCI.ConclusionsCTO’s are commonly encountered during CAG procedures. In patients undergoing CTO PCI, a fair success rate can be achieved in a high volume experienced centre.     

Current treatment of peripheral arterial disease: role of percutaneous interventional therapies

Despite advances in medical therapies to help prevent the development of atherosclerosis and improve the management of patients with established peripheral arterial disease (PAD), the prevalence of PAD and associated morbidity remains high. Over the past decade, percutaneous revascularization therapies for the treatment of patients with PAD have evolved tremendously, and a great number of patients can now be offered treatment options that are less invasive than traditional surgical options. With the surgical approach, there is significant symptomatic improvement, but the associated morbidity and mortality preclude its routine use. Although newer percutaneous treatment options are associated with lower procedural complications, the technical advances have outpaced the evaluation of these treatments in adequately designed clinical studies, and therapeutic options are available that may not have been rigorously investigated. Therefore, for physicians treating patients with PAD, an understanding of the various therapies available, along with the inherent benefits and limitations of each treatment option is imperative as a greater number of patients with PAD are being encountered.     

Anchor wire technique improves device deliverability during PCI of CTOs and other complex subsets

Introduction: The DES era has increased the demand on PCI‐based revascularization and lesion complexity. One of the technical problems still limiting success rates in complex PCI is limited device deliverability. This work describes a new technique to improve deliverability.

Methods: When deliverability was limited during PCI, a second 0.014‐inch guide wire was inserted into the non‐target artery. Then, another attempt was made to deliver the device to the target lesion.

Results: The technique was attempted in 13 consecutive cases with difficulties in delivering a device; five of CTO (38.5%), five of diffuse calcifications (38.5%), two of direct stenting (15.3%) and one case (7.7%) of dilated aortic root. The anchor wire technique was the only maneuver needed in eight (61.5%) cases. Additional technique was needed in four (30.7%) cases. In four out of five (80%) CTO cases, the anchor wire technique allowed successful PCI and to deliver a balloon across a CTO. Final procedural success was achieved in 12 (92.3%) cases.

Conclusions: The anchor wire technique can be very useful in increasing success rates in CTOs and various complex PCI's and has the advantage of being simple to use, without a need to re‐cross the target lesion or to exchange PCI system.     

Validation of a definition of excessive postoperative bleeding in infants undergoing cardiac surgery with cardiopulmonary bypass

Objective

To derive and validate an objective definition of postoperative bleeding in neonates and infants undergoing cardiac surgery with cardiopulmonary bypass.

LVEF对STEMI合并non-IRA CTO患者PCI术预后的影响

目的探讨非梗死相关动脉(non-IRA)慢性完全闭塞(CTO)合并ST段抬高心肌梗死(STEMI)患者行经皮冠状动脉介入治疗(PCI)术的预后与左心室射血分数(LVEF)之间的关系。 方法选取STEMI患者130例,根据LVEF水平分为LVEF降低组和LVEF保留组;根据是否合并CTO分为CTO亚组和无CTO亚组。随访1年,比较两组患者的全因死亡和主要心血管不良事件(MACE)。 结果与无CTO亚组比较,LVEF降低患者CTO亚组有更高全因死亡率和MACE发生率;而LVEF保留患者CTO亚组与无CTO亚组之间上述指标差异无显著性。在LVEF降低患者中,non-IRA CTO是全因死亡和MACE的独立预测因子。 结论non-IRA CTO是LVEF降低STEMI患者全因死亡和MACE的独立预测因子。