Active clinical trials for "Coronary Artery Disease"

We planned to evaluate the effects of melatonin on progression of coronary artery calcification (CAC) in patients with moderate calcified coronary atherosclerosis.

Cardiovascular disease increases the risk of depression and vice versa. Many cardiovascular patients are subjected to percutaneous coronary intervention (PCI). Potential biomarkers for the development, the course and the recovery of both diseases are in the focus of interest of many studies. One of the biomarkers that stands out is brain derived neurotrophic factor (BDFN). BDNF plays a significant role in regulating vascular growth and repair but also stimulates the survival, differentiation, and conservation of neurons. The aim of the study is to detect the depression in patients undergoing PCI and to determine the impact of psychiatric treatment on the functional recovery and on the changes of BDNF.

Pulmonary dysfunction is a condition inherent in cardiac surgery because of various interventions, such as general anesthesia, a median sternotomy, cardiopulmonary bypass and establishment of internal thoracic artery dissection. In situations when there is a deterioration in oxygenation, increased positive pressure on the airways end pressure (PEEP) can be used as therapeutic mode by reversing severe hypoxemia resulting pulmonary shunt. But the use of PEEP has been associated to reduced cardiac output, due mainly to decrease systemic venous return consequent to increased intrathoracic pressure, and thus might reduce tissue oxygenation. Moreover, the increased transpulmonary gradient may also impair right ventricular ejection exacerbating the hemodynamic consequences in some patients, which in clinical practice this diagnosis may be difficult to perform. In hypovolemic patients or those with cardiac changes may become even more pronounced, resulting in accentuation of low flow and systemic hypotension entailing changes in markers of tissue perfusion commonly measured by venous saturation central difference venoarterial carbon dioxide and lactate. The hypothesis of the investigators is that PEEP of 10 cmH2O and 15 cmH2O can be applied to reverse lung damage in patients in the immediate postoperative myocardial revascularization without repercussion tissue importantly in markers of tissue perfusion. The objective is to evaluate the effects of different optimization levels of PEEP on gas exchange and influences the tissue perfusion after coronary artery bypass graft surgery.

This study is a prospective, multi-center, randomized controlled clinical study. It developed an innovative Tai Chi Cardiac Rehabilitation Program (TCCRP) for patients with chronic coronary syndrome (CCS) and evaluated the efficacy, acceptability and safety of TCCRP on patients with CCS in order to explore the possible mechanism of its feasibility.

Cardiac shock wave therapy (CSWT) is a noninvasive new therapeutic option in the treatment of chronic refractory angina pectoris. Many domestic and international researches have revealed that CSWT contributes to revascularization by stimulating angiogenesis. We were aimed to evaluate the safety and efficiency of CSWT in the treatment of refractory angina.

The leading cause of death in the world is due to cardiovascular events, which originate from coronary artery stenosis therefore it affects myocardial blood flow and finally may cause infarction. Atherosclerosis is the most debatable hypothesis in coronary stenosis. Scientists think body inflammation is one of the main etiologies. There are many factors affect this inflammatory process, which Vitamin D is one of them. Vitamin D deficiency has been linked to various inflammatory diseases. However, the mechanism by which vitamin D reduces inflammation remains poorly understood. Vitamin D deficiency is pandemic around the world with 30-50% prevalence in adult population and several evidences advocated its association with immune-based disease. Additionally, there are some study suggesting patients who suffered from myocardial infarction have lower serum vitamin D level. It has been revealed Vitamin D deficiency has numerous major drawbacks on cardiovascular system. Its deficiency benefits atherosclerosis progression and may cause endothelial inflammation and dysfunction in coronary artery. There is not any evidences study vitamin D deficiency treatment on non ST-Segment Elevation Myocardial Infarction nor there is any study demonstrating its effect on cardiovascular health through Holick's protocol. Furthermore endothelial function, cardiac work retrieval and inflammation after 8 weeks has not been studied with this protocol yet. According to current data, the investigators assume by treating this vital and worldwide deficit in our body, doctors can help decrease inflammation, decelerate the atherosclerosis progression and enhance ventricular function after infarction. Besides all of the recognized risk factors, vitamin D deficiency should be considered a very important and mischievous cardiovascular alarm for the body, which should be treated and maintained through the whole life due to lack of sufficient sunlight exposure and nutrition intake. In preventive medicine domain, the investigators anticipate by maintaining a high level of this vitamin in the body, cardiovascular events decrease and its burden on society will decline to much extend leading to a higher quality of life and health worldwide.

The rationale of MIDA trial is to determine efficacy and tolerability of ranolazine molecule among Pakistan population and obtain firsthand knowledge about the molecule ranolazine.

Cardiac surgery is associated with post-operative pain which is one of the major problems and remains one of the most controversial issues. Inadequate pain control after cardiac surgery increases the incidence of development of many complications. Intravenous opioids are commonly used for postoperative analgesia either on demand "physician or nurse-controlled" or patient -controlled. Multimodal opioid sparing analgesia has become frequently used, These techniques can be achieved with Dexmedetomidine, low-dose ketamine and magnesium. The study hypotheses that control of perioperative quality of pain with opioid sparing medications may improve analgesia and patient outcome.

The dual antiplatelet therapy based on aspirin plays an important role in the treatment of patients with coronary heart disease. Although aspirin is widely used and effective, it has many limitations in the long-term including increased risk of bleeding. In patients with coronary heart disease and gastroesophageal reflux disease, the symptoms of gastroesophageal reflux are usually aggravated after the application of aspirin. As an antiplatelet drug, indobufen can reversibly and selectively inhibit platelet cyclooxygenase-1 (COX-1), thereby blocking the synthesis of thromboxane B2 (TXB2) and exerting its antiplatelet effect, and it does not affect the production of prostaglandins and endothelial prostacyclins in gastrointestinal mucosa. It has less gastrointestinal injury and lower risk of bleeding. This project is to study the effects of indobufen or aspirin on gastric acid secretion and gastroesophageal reflux in patients with coronary heart disease and gastroesophageal reflux disease treated with dual antiplatelet therapy.

This study is to assess the clinical non-inferiority of 1 month (short-term) vs 6 months (long-term) of dual anti-platelet therapy in patients undergoing percutaneous intervention implanted sirolimus -eluting stent with abluminal grooves containing a biodegradable polymer in High Bleeding Risk patients with coronary artery disease.