Active clinical trials for "Heart and Blood Diseases"

To counteract long term sequelae from stroke, ultrarapid diagnosis and treatment, high quality multidiciplinary in-hospital care and optimal long term rehabilitation is required. In this study, the investigators are moving the essential first diagnosis and treatment out into the community close to where the patient live, thus shortening the all important time from debut of symptoms to thrombolytic treatment improving the prognosis of stroke patients.

The results in carotid surgery are an indicator of the functioning of an academic surgical team, making it possible to evaluate and improve practices, as much among surgeons in training as among senior surgeons. The indications have evolved with the development of symptomatic stenosis surgery, and results analysis has allowed us to improve our practices. It would be of great use to have the statistics obtained in previous years to continue improving our practices.

TAVI is still a relatively new technique that is emerging with advance in the percutaneous and implantable valve technology. Despite its safe use in inoperable and high risk patients with severe symptomatic aortic valve stenosis, minimizing complications, predictors of outcomes and approach preference is still an area of study. Here we decided to study the outcomes of patients undergoing TAVI, different approaches used and their subsequent results and complications.

This retrospective case control explores the retinal features of dementia associated with neurodegenerative diseases, particularly Alzheimer's disease. By linking a pseudonymised dataset of three-dimensional retinal scans, called optical coherence tomography, with nationally held data on dementia, corresponding characteristics will be evaluated through descriptive statistics and machine learning techniques.

Currently there is an increase in the use of bioprosthesis worldwide (> 70% according to national data of the Spanish Society of Thoracic and Cardiovascular Surgery). There is conflicting evidence regarding the long-term survival of patients aged 50-65 years with mechanical (M) or biological (B) aortic prostheses. General consensus of greater complications associated with the use of long-life anticoagulation in M and of reoperation in B. Similar survival with lower MACCE complications in bioprosthesis could reconsider their choice in patients aged 50-65 years, specially in the current TAVI era. The investigators are going to perform a multicentric retrospective observational study (Registry) about 15 year-outcomes Following Bioprosthetic vs Mechanical Isolated Aortic Valve Replacement for Aortic Stenosis in Patients Aged 50 to 65 Years in 30 Cardiovascular Surgery Centers in Spain

The aim of the study is to assess the prevalence of left atrial thrombus in patients with atrial fibrillation (AF) or atrial flutter (AFI), in whom transesophageal echocardiography is performed before AF/AFl cardioversion or ablation.

This is a prospective and observational study in patients with type two diabetes. The study hypothesis is that chronic hyperglycemia causes an increase in the microcirculation on the carotid artery wall and retina, evaluated by angio-OCT. Furthermore, the reestablishment of normoglycemia would decrease this microcirculation, which could trigger hypoxic and ischemic changes, accelerating preclinical atherosclerosis. The study goal is to describe the microangiopathy in both territories in patients with type two diabetes and chronic hyperglycemia, and to evaluate changes after the reestablishment of normoglycemia.

Limitation of range of motion in the shoulder joints is common in stroke patients. The causes are stiffness, CRPS, and frozen shoulder. The purpose of this study was to investigate the relationship between frozen shoulder and shoulder LOM in patients with cerebral infarction using ultrasonography.

This is a retrospective observational study drawing on data from the Brigham and Women's Home Hospital database. Sociodemographic and clinic data from a training cohort were used to train a machine learning algorithm to predict length of stay throughout a patient's admission. This algorithm was then validated in a validation cohort.

This study was aimed to investigate the clinical characteristics, management and prognosis of patients developing intraoperative cardiac arrest during transcatheter aortic valve implantation