All clinical trials

Gastric carcinoma is a disease with a high mortality. Peritoneal washing cytology has a recognized prognostic utility. However sensibility of this study is not appropriate. Studies with PCR (polymerase chain retrotranscription) can increase sensibility and accurate staging information. Objective: To analyze the sensibility and specificity of the expression of CK20, CEA and Ber-EP4 with PCR technique in peritoneal washings of advanced gastric carcinoma without clinical evidence of peritoneal carcinomatosis. Methodology: Retrotranscription analysis (RT-PCR) and quantitative PCR (qPCR) of CK20, CEA and Ber-EP4 in peritoneal washing. Test the feasibility of qPCR with this new marker (Ber-EP4). Comparison of the results with data obtained with conventional cytology. Study of peritoneal recurrence.

This is a single-center and prospective study to identify specific biomarker in order to predict development of decompensation in cirrhotic patients. The duration of the study is 36 months and it provides a cohort of 200 patients.

Very recent studies indicate that a high percentage of HCL, about 50%, have mutations in the B-RAF oncogene. The development of ultrasensitive methodologies capable of identifying these mutations in bronchoalveolar lavage will represent a significant advance in the diagnosis and treatment of these patients. An undetermined percentage of HCL does not present mutations in B-RAF. Consequently, the deep genetic analysis, through the use of techniques of massive sequencing, can favor the identification of new alterations that contribute to the development of the disease. We hypothesized that patients with HCL may present a different inflammatory state to healthy subjects or smokers, allowing us to identify new biomarkers.

Patients with a thoracoabdominal aortic aneurysm in need of an endovascular or open operative restructuring will be asked to participate in this study. After obtaining written consent a central venous catheter and a liquor drainage will be routinely placed during surgery. The catheter and the drainage will stay in the patients for at least 72 hours postoperatively. In total, nine measurements of the liquor and serum will be performed within a week in order to determine the following parameters: neuropeptide P, neuropeptide Y, neurofilament triplet protein (NFL), S100B, glial fibrillary protein (GFAp), lactate, glucose, or oxygen.

Background: A predictive factor is a measure that predicts treatment response. Decisions on internal fixations of lower limb fractures should regard predictive factors to personalize (e.g. age) treatment. However for most potentially influencing factors valid data on the predictive value is sparse. Objectives: The objective of this study is to identify predictive factors and quantify their predictive ability for treatment failure in patients with limb fractures treated with osteosynthesis. Methods: Patients Adult patients (≥18 year) with isolated fractures scheduled for urgent or semi-urgent surgery using internal fixations because of lower limb fractures. The predictive value of the following exposures will be analyzed: Age Gender Diabetes Smoking status Body Mass Index Open fractures Peripheral arterial disease Outcome The outcome will be (time to) reoperation of the same fracture because of failure of internal fixation due to nonunion or implant failure. Study design A prospective observational cohort study will be performed. Sample size 300 patients will be included. Statistical analysis: For the main analysis a multivariate stratified Cox proportional hazard model will be used. The Model will be stratified according to the indication. In the Cox proportional hazard model all predictive factors will be entered simultaneously to quantify the independent influence (adjusted for all other factors) of each factor. The strength of prediction will be described with hazard rations and their corresponding 95% confidence intervals.

Doppler sonography provides an easily applicable, non-invasive, and well-established method for investigating renal morphologic characteristics and measuring vascular resistance in the renal parenchyma. Doppler are of strategic importance in providing qualitative and quantitative information about the renal vasculature, which can be obtained through the assessment of the resistive index.

Dilated cardiomyopathy is a heart muscle disorder characterized by systolic dysfunction and dilation of the left or both ventricles.Dilated cardiomyopathy can develop in people of any age or ethnicity, although it is more common in male than female persons occurring at a ratio of about three to one in male to female persons. Dilated cardiomyopathy is the predominant cause of cardiomyopathy in pediatric populations. Annual incidence in pediatric populations has been reported to be much lower than one to one hundred seventy thousand in the United States and one to one hundred forty thousand in Australia. Although pediatric dilated cardiomyopathy has a lower annual incidence than adult dilated cardiomyopathy, the outcome for pediatric dilated cardiomyopathy patients is particularly severe. Dilated cardiomyopathy is the most frequent cause of heart transplantation in pediatric patients. Data from international pediatric dilated cardiomyopathy registries indicate that the rates of death or heart transplantation over one and five year periods were thirty one percent and forty six percent, respectively. Onset of dilated cardiomyopathy is usually insidious but may be acute in as many at twenty five percent of patients. Approximately fifty percent of patients with dilated cardiomyopathy have a history of preceding viral illness.

Current prospective cohort study is to evaluate the association between fasting lipid profiles (including total cholesterol, low density lipoprotein-cholesterol, high density lipoprotein-cholesterol, triglycerides, apolipoprotein A, apolipoprotein B and lipoprotein(a)) and fasting plasma glucose at admission with cardiovascular disease outcomes (including fatal and non-fatal myocardial infarction, fatal and non-fatal ischemic stroke, re-hospitalization due to heart failure, revascularization by percutaneous coronary intervention or coronary artery bypass grafting, or cardiovascular mortality) and all-cause mortality.in patients with ischemic heart failure and left ventricular ejection fraction < 45 % evaluated by echocardiography during 12 months follow-up.

Characterization of the female genital tract microbiome in women undergoing IVF treatment

Advances in paediatric cardiology and cardiac surgery have enabled the survival of most patients born with congenital heart disease (CHD) into adulthood. Many CHD patients have undergone palliative or reparative surgery earlier in life. As patients survive into adulthood, they may need intervention or surgery for residual haemodynamic lesions. This is because they are at risk of arrhythmias secondary to structure heart disease and are susceptible to acquired heart disease. In these patients, pre-operative and post-operative evaluation of right ventricular (RV) structure (shape and volume) and function is an essential component of clinical management. Advances have been made in cardiac imaging so that accurate assessment of the right heart chamber in terms of its structure, function and physiology is possible. However, this technology has as yet never been applied in an effort to comprehensively assess RV structure, function and physiology. Cardiac Magnetic Resonance (CMR) will be used in this comprehensive assessment of structure and function. Thus, this research will allow development of a comprehensive integrated biomedical engineering (BME) R&D platform for in-depth study and clinical diagnosis of the RV structure-function relationship and physiology and its association with biomarker, and exercise capacity in CHD.