Active clinical trials for "Heart Diseases"

Objectives: Evaluation of the cardiovascular (CV) risk in a sample of CV asymptomatic infertile women with polycystic ovary syndrome (PCOS). Patients & Methods: 100 infertile PCOS women older than 30 years (PCOS group) and 50 fertile non-PCOS women (Non-PCOS group) underwent gynecological and laboratory diagnosis and then underwent a diagnostic protocol consisting of determination of body mass index (BMI), Homeostasis model assessment of insulin resistance (HOMA-IR) scoring and cardiologic evaluation using echocardiography, estimation of carotid artery intima-media thickness (CIMT), coronary artery calcium (CAC) score using multi-slice non-contrast cardiac CT and cardiac risk ratio (CRR). Study outcomes included the incidence of abnormal cardiac risk parameters and the determination of the best minimally invasive modality to be used as a screening test for these women.

From the registry of professor Kojuri clinic , those with Covid-19 infection were selected and was contacted and asked about the cardiovascular symptoms, 1 year after the covid infection

EtCO2, or exhaled carbon dioxide, is a non-invasive and commonly used measure for respiratory rate and function. It can be easily monitored using a device called a capnograph, which consists of a sensor that is placed near the patient's mouth or nose and a monitor that displays the concentration of carbon dioxide in the respiratory gases in real-time. EtCO2 capnography is generally considered a reliable and accurate method for monitoring respiration and is often used as a gold standard for comparing the performance of other methods for measuring respiration. Therefore, the primary aim of this study is to provide a thorough comparison of the performance of Sleepiz One+ and EtCO2 Capnography for measuring respiration rate, in healthy adults and patients suffering from chronic conditions (e.g. hypertension, COPD, asthma, diabetes), at rest in a clinical setting. Additionally, the performance of heart rate estimation will be evaluated against ECG.

Fibrinogen plays an important role in the coagulation cascade. Low levels of preoperative fibrinogen have been associated in adults with higher blood and transfusion requirements during surgery. Guidelines from the European Society of Anesthesiology and Intensive Care recommends fibrinogen substitution based on viscoelastic tests in adult cardiac surgery. Cardiopulmonary bypass results in a profound hemodilution and dilution of all coagulation factors. This is especially true in children where the priming volume of the cardiopulmonary bypass circuit is much higher compared to the patient's weight than in adults. Cardiopulmonary bypass generates high levels of tissue plasminogen activator resulting in a hyperfibrinolysis, further lowering fibrinogen levels. The aim of this retrospective study is to explore a possible relationship between preoperative fibrinogen levels and perioperative blood loss, as well as transfusion requirements in children undergoing cardiac surgery.

Background: The COVID-19 pandemic infected and killed African Americans at higher rates than other Americans. Researchers want to understand why. Objective: This natural history study will look at how genetic, environmental, and social factors may predict or affect COVID-19 in African Americans. Information from this study will be combined with data from the GENE-FORECAST study. Eligibility: African Americans who were previously enrolled in GENE-FORECAST. Design: The study includes a telephone interview and 1 visit to the NIH clinic. Participants may engage in either one or both of these activities. The telephone interview will last 20 minutes. Participants will talk about their experiences during the COVID-19 pandemic. The clinic visit will last up to 4 hours. Participants will have a physical exam. They will have blood and urine tests. They will be tested for COVID-19. A long swab will be inserted into a nostril to get a fluid sample from the back of the nose. They will have noninvasive tests of their blood vessels. One device used is a pen-like probe placed lightly on the wrist. Another is a rubber sleeve placed around a finger while a blood pressure cuff is used on the arm. Participants will have a test to measure the electrical activity in their heart. Stickers attached to wires will be placed on their chest, arms, and legs. Participants will answer more questions about COVID-19. They will talk about their health behavior. They will talk about their family's health and the neighborhood they live in. Other questions will ask how they feel, live, work, and play.

This study main objective is to evaluate the safety and efficacy of the UltraSight AI Guidance software. The investigational product is a software that guides the user to capture a high quality ultrasound image. The study will include healthcare professionals, not specialized in echocardiography, who will perform echocardiography by using UltraSight AI Guidance software, on subjects in the medical centers cardiac units.

This is a multi-center, prospective and controlled clinical trial which will enroll 200 coronary arteriography or percutaneous coronary intervention with 2-4 interventional cardiologist. The interventional cardiologist performed 100 interventional procedures using either a new protective device (NPD) or a traditional lead clothing (TLC). The cumulative dose outside the NPD or TLC and the first operator at each height (110cm, 90cm, 50cm, 10cm) was measured. The main indicators of the study are the average X-ray shielding efficiency of the NPD and the TLC at four different heights. The investigators will record all operation information in this study.

Drug-Coated Balloon (DCB) angioplasty is similar to plain old balloon angioplasty procedurally, but there is an anti-proliferative medication paclitaxel coated on the balloon. Treating in-stent restenosis (ISR) with the DCB has the theoretical advantage of avoiding multiple stent layers and respecting the vessel anatomy. DCB has shown promising results for the treatment of ISR. Currently, DCB has a Class I indication to treat ISR recommended by European Society of Cardiology (ESC) guidelines. In addition, some interventional cardiologist has also applied DCB in de novo lesions in their clinical practice. Although some small sample size RCTs and observational studies have suggested that the clinical prognosis of DCB in primary large vessels is non-inferior to drug-eluting stent (DES), there is no large-scale RCT or cohort studies to compare the clinical effects of DCB and DES. Despite several theoretical benefits of DCB, the procedural-related complications cannot be entirely prevented, such as acute elastic retraction and severe dissection, which would affect coronary blood flow or lead to acute vascular occlusion. Some studies have suggested that optimization of the procedural technique can reduce the occurrence of complications and target lesion failure in the long-term. Proposed criteria include adapting cutting or scoring balloon for pre-dilatation, residual stenosis<30% post-DCB, maintaining TIMI flow=3, DCB dilation time<60s, and appropriate balloon to vessel ratio> 0.91. However, such proposed technique and criteria have not been evaluated in the real-world clinical practice. This current study is designed to investigate the efficacy and safety of DCB in the real world and exploring the optimal procedural configurations.

The outcome predictors for cardiac surgery has been popular for many researchers and clinicians. Determining risk factors before surgery reduce morbidity and mortality after surgery. Some routine blood results have been used as predictors for cardiac surgery but none of the researches studied red cell distribution width, mean platelet volume, platelet/lymphocyte ratio and neutrophil/lymphocyte ratio. This study focused on these parameters and to see whether these parameters can be predictors for cardiac surgery.

The study is a voluntary study, initiated by B. Braun to collect clinical data for Optilene® suture concerning its key indication.