View clinical trials related to Coronary Atherosclerosis.
Filter by:Objective: To evaluate the impact of heated versus combustion tobacco products on progression of atherosclerosis in patients with CAD unable(unwilling) to quit smoking. Rationale: Despite the efforts to curb smoking and full awareness of its deleterious health impact, smoking remains a significant contributor to morbidity and mortality. Some health impact of smoking may be improved by other forms of cigarettes than traditional combustion, especially for subjects unwilling or unable to stop smoking. As recently as 2020, one of heated tobacco products (HTP)(IQOS) was FDA Authorized as a 'Reduced Exposure' product. The available evidence to date allows to conclude that the IQOS system heats tobacco but does not burn it, which significantly reduces the production of harmful and potentially harmful chemicals. Scientific studies have shown that switching completely from conventional cigarettes to the IQOS system significantly reduced body's exposure to harmful or potentially harmful chemicals. There is also evidence indicating lower levels of inflammatory markers and improved vascular function associated with use of heated tobacco products. However, it is unknown whether the reduction in the exposure translates into potential reduction of harm within cardiovascular system, as compared to the traditional (combustion) cigarettes. The evidence is of crucial importance for patients with cardiovascular diseases, medical community, and national health authorities planning evidence based policies regarding HTP/cigarettes.
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.