Active clinical trials for "Coronary Artery Disease"

Enhanced Recovery Protocols (ERPs or bundles) have been established in many surgical specialties (such as colon cancer and orthopaedic joint surgeries) for several years in hospitals worldwide. The principles of Enhanced Recovery Protocols are those of early mobilization and restoration of normal function as soon as possible after surgery. These principles are achieved by use of alternate pain control regimens and removing invasive lines and drains as soon as possible. The benefits of ERPs are improved patient experience, earlier return to normal function and reduced length of stay. Enhanced recovery protocols for cardiac surgery have been published by the Enhanced Recovery After Cardiac Surgery Society. The current study will investigate whether it is possible to utilise ERP bundles in the population of cardiac surgery patients at James Cook Hospital, with a view to rolling out a full ERP service. Secondary study outcomes will be patient-centred, including; pain scores, nausea and vomiting rates and time taken to return to normal function.

This study is a prospective, registry trial aimed to compare the clinical and angiographic outcomes of OCT-guided and angiography-guided PCI in patients with coronary DES-ISR.

This study evaluates the diagnostic efficiency of an automated method of noninvasive assessment of the fractional reserve of coronary blood flow. Fractional flow reserve is estimated with a one-dimensional mathematical model constructed by means of an automated algorithm. Noninvasive method values are thereafter compared with invasive method values.

The aim of this study is to determine the prevalence of myocardial ischaemia in asymptomatic high risk type 2 diabetic patients using stress cardiac MR and how many stress cardiac MR examinations are false positive.

The goal of this study is to use three (3) different imaging techniques:Fractional Flow Reserve (FFR) allows precise measurement of blood flow in the arteries to the heart, and is more reliable than pictures alone to determine the significance of blockages in the heart; Near Infra-Red Spectroscopy-Intravascular Ultrasound (NIRS IVUS) provides information about the amount of lipid and cholesterol in the plaque, and plaque volume; and Optical Coherence Tomography (OCT) allows physicians to assess tears in the surface of plaque and plaque thickness; to evaluate high risk non-infarct-related coronary lesion in patients who have suffered a recent heart attack, underwent successful opening of the artery with a stent, and have blockages greater than or equal to 50% in one or more of the other arteries to the heart; and to correlate this findings with cardiovascular outcomes at 1 year.

Randomized-controlled trial to comparison of the long-term radial artery occlusion in coronary diagnosis and intervention via distal vs conventional radial approach

Participants are being asked to participate in this research study because the participant's doctor has ordered a myocardial perfusion SPECT (Single-Photon Emission Computed Tomography) scan to look at the blood flow in the participants heart. Myocardial perfusion imaging is a proven test that looks at the blood flow to the participant's heart after the injection of a radioactive tracer. The standard test requires two injections of the radioactive tracer and takes images of the participant's heart at rest and after a stress test. It has been proposed that in some cases, patients could have images done only after the stress portion of the test and, if normal, the rest images would not need to be done. In this case, only one injection of the radioactive tracer would be needed. It has further been proposed that adding another stress image made with the participant lying on their stomach, will increase the confidence of the reporting doctor in reporting stress images. The purpose of this study is to find out if the extra information added from the image with the participant on their stomach helps the doctor when reporting the test results.

The HeartHab study is a pilot trial in which coronary artery disease patients (n = 15-30) are given the HeartHab application. The HeartHab application is a smarthphone based mobile application that serves as a secondary prevention tool, to support cardiac patients after their phase II cardiac rehabilitation program. During study period (4-6 weeks), participating patients will be asked to use the application. HeartHab includes a module devoted to therapy compliance, one to exercise training prescription and one to risk factor control. HeartHab aims to motivate the patient to improve his/her self-management skills and hence decrease cardiovascular morbidity (and mortality). Motivational aspects and usability data will be collected during study period by means of app logs and/or questionnaires/interviews.

This study is primarily designed to collect resting phase signals from eligible subjects using the Phase Signal Recorder (PSR) prior to coronary angiography to machine learn and test an algorithm for detecting the presence of significant coronary artery disease in symptomatic adult patient.

The investigators propose a single center prospective study that will assess two different strategies for measuring Fractional Flow Reserve (FFR) in patients undergoing clinically-indicated coronary angiography in whom FFR measurement is indicated. FFR will be measured with a non-side hole guide catheter (with the guide catheter both engaged and disengaged from the coronary ostium) and with a side-hole guide catheter (with the guide catheter both engaged and disengaged from the coronary ostium) to determine, whether measurements obtained with an engaged side-hole guide catheter are more accurate as compared with those obtained with the engaged non-side hole catheter.