Active clinical trials for "Coronary Artery Disease"

There is no definite conclusive work about the benefit of OCT-guided PCI, which should be determined in complex PCI, assuming better stent optimization by OCT. In the study, we will explore the clinical implication of OCT-guided PCI of complex lesions.

This randomized, single-center, prospective study seeks to compare the conventional radial approach with the recently described distal radial approach (anatomical snuffbox) concerning the patency of the radial artery in patients subjected to coronary angiography or percutaneous coronary intervention.

The aim of this study is to investigate the histological and immunohistochemical findings of the saphenous vein graft, to rule out endothelial damage as a direct result of manipulation or instrumentation by endoscopic and open conventional harvesting methods. Furthermore, to investigate if there are any differences in the surgical site infection, cardiac event and functional status between the two harvest strategies at 1-year of follow-up.

Cardiac CT allows the assessment of the heart and of the coronary arteries by use of ionising radiation. Although radiation exposure was significantly reduced in recent years, further decrease in radiation exposure is limited by increased image noise and deterioration in image quality. Recent evidence suggests that further technological refinements with artificial intelligence allows improved post-processing of images with reduction of image noise. The present study aims at assessing the potential of a deep-learning image reconstruction algorithm in a clinical setting. Specifically, after a standard clinical scan, patients are scanned with lower radiation exposure and reconstructed with the DLIR algorithm. This interventional scan is then compared to the standard clinical scan.

The objective of this study is to evaluate the rate of SYNERGY 48 mm stent strut coverage and assess neointimal progression via OCT measurement in patients who underwent PCI.

This is a prospective cohort study of patients undergoing coronary artery bypass graft surgery. Prior to surgery, participants will undergo submaximal cardiopulmonary exercise testing on a treadmill. Participants will be followed for one month after surgery to assess mortality and non fatal complications.

Angiography is a common diagnostic and therapeutic procedure in patients with acute coronary syndrome (ACS). The complications are variable between mild self-limited complications to severe life-threatening complications which need early interventions. New angiographic methods are associated with variable complications. Death, myocardial infarction, and stroke are among major angiography complications. In addition, some local complications including bleeding at the site of insertion, infection, arteriovenous fistula, pseudoaneurysm, and thrombosis is reported after angiography. Radial and femoral methods are common angiographic methods. Its shown that radial method is associated with less complications and patients need shorter duration of hospitalization. Radial artery thrombosis is common complication of radial angiography. However, the prevalence is between 5 to 19 percent but often it is not clinically important. Risk of ischemia due to thrombosis is low because of blood flow in radial and ulnar and collaterals. In patients with incomplete palmar arch this is important and may cause ischemia. The aim of this study is to compare the outcomes of coronary angiography using Snuff-box deep palmar arch artery and radial artery in patients attending angiography center of Shahid Mohammadi hospital in Bandar Abbas in 2017.

This randomized, multicenter, prospective study seeks to compare left radial and femoral access during cardiac catheterization of patients with prior history of CABG surgery, with the primary objective of demonstrating that the two access techniques do not differ in the net procedure time (non-inferiority study) expanding the documented benefits of radial access to this group of patients.

A total of 210 coronary atherosclerosis patients without indications for stent implantation are included. The baseline values of platelet aggregation rate, plasmaThromboxaneB2 and urinary 11-dh ThromboxaneB2 are measured by Light Transmittance Aggregometry method and ELISA after aspirin 100 mg /d ≥5d. Then the patients are randomly divided into 7 groups: Group1: aspirin 100 mg/d; Group2: aspirin 100 mg /2d; Groups3: aspirin 100 mg / 3d; Groups4: morning 50mg evening 50mg; Group5: aspirin 75mg / d; Group6: aspirin 50mg / d; Group7: indobufen100mg bid. One month later,arachidonic acid-induced platelet aggregation rate , plasma TXB2 and urine 11-dh TXB2 are analyzed again. All patients are followed-up for 1 year. The stomach Intestinal reactions, small bleeding events are recorded.

The aim of this study is to evaluate whether use of the echoclip device (an ultrasound transducer positioning device which can stabilize the involved part of the myocardium on the beating heart) facilitates imaging of coronary bypass anastomoses during coronary bypass surgery. A total of 100 low risk patients undergoing elective on-pump coronary bypass surgery will be included in the study in order to evaluate if the surgeons can visualize the coronary anastomoses before closure of the sternum. Ultrasonograpic pictures will be analyzed directly peroperatively and electronically post-operatively in order to evaluate if selected areas of the anastomoses can be visualized. Use of the echoclip devise will be considered a success if at least 80% of the anastomoses can be visualized.