All clinical trials

Rationale: Survival rates of teeth with laminate veneers were reported to have more marginal caries and discoloration when existing restorations are present. However in these studies no conditioning of the existing restorations was performed. Objective: This study evaluate the survival rate of ceramic laminate veneers bonded to teeth with and without existing composite restorations Study design: Prospectief Cohort research Study population: the participants received laminate veneers and older then 18 years. Intervention (if applicable): The participants received laminate veneers in the past. No intervention. Main study parameters/endpoints: Survival and success of laminate veneers with existing restorations: Survival (no loss of laminate veneer during follow up time), Success was measured using USPHS health criteria. Nature and extent of the burden and risks associated with participation, benefit and group relatedness: The participants are asked to come for a check-up of their restorations, the investigators will evaluate the laminate veneers by sight and take some light photo's and a patient questionnaire will be given.

This study aims to investigate the correlation between pulmonary microbiota dynamics (including bacteria, fungi and viruses) and COPD exacerbation for COPD patients admitted to ICU

To investigate the occurrence of cognitive dysfunction in cancer patients with pain in China.Analysis of patients with different cancer pain, different analgesic drugs and different treatments are associated with the severity of cognitive dysfunction, to provide relevant evidence for the next screening, prediction, prevention and treatment. In order to achieve the purpose of improving the quality of life of cancer patients.

Current knowledge: To the best of our knowledge, no studies have reported the correlation between pulmonary function and the vascular endothelial function in diabetic patients during the preclinical period. Indeed, diabetic nephropathy and retinopathy are the leading causes of end-stage renal failure and acquired blindness, respectively. However, when investigators treat patients with type 2 diabetes, investigators seldom consider the pulmonary vascular injury induced by glycemia. Experimental studies have shown that pulmonary function and Vascular endothelial function change during the preclinical stages of diabetic retinopathy. Researchers have already established that compared to healthy subjects, patients with type 2 diabetes have a reduced alveolar gas exchange capacity. The NO and ET-1 can be used to assess the Vascular endothelial function. What this paper contributes to our knowledge: Regulating glycemia can improve Vascular endothelial function . This study suggests that detecting the NO and ET-1 would allow for the prediction of changes in pulmonary function during the preclinical stages of diabetic retinopathy and the degree of retinopathy in the future.

This study evaluates the impact of the Radiofrequency assisted transection on the rate of postoperative pancreatic fistula (POPF) after performing distal pancreatectomies, central pancreatectomies and pancreatic enucleation

Methods National audit of a 60-day prospective observational cohort in the that the pre-defined postoperative complications at 30 days of follow-up in adult patients electively undergoing hip replacement surgery (HRS) or knee replacement surgery (KRS) with or without a program of Enhanced Recovery (ERAS: Enhanced Recovery after Surgery) with any level of protocol compliance (0-100%) Research Places Spanish Hospitals where these surgical interventions are performed usually Objectives To determine the incidence of Postoperative Complications per patient and procedure, regardless of the degree of adherence to ERAS protocols and its impact on the Hospital Stay and on postoperative complications including 30-day mortality Sample Size For an alpha error of 5% (95% confidence and an accuracy of 3% and estimating a number of patients with complications of 50%, the calculation of sample size yields 3012 patients, although the final sample size may be smaller depending on the proportion of complications detected. Inclusion criteria Patients over 18 undergoing elective HRS or KRS PTC regardless of its affiliation to a ERAS program and the level of compliance with protocol (from 0-100%) Statistical analysis Continuous variables will be described as mean and standard deviation, if it is a normal distribution, or median and interquartile range, if they are not distributed normally. The comparisons of continuous variables are performed by one-way ANOVA or the Mann-Whitney test, depending on proceed A univariate analysis will be carried out to test the factors associated with postoperative complications, hospital stay and death in Hospital. Univariate analyzes and logistic regression models will be constructed Hierarchical multivariate to identify the factors associated in a independent with these results and to adjust the differences in the factors of confusion. The factors will be introduced in the models based on their relationship with the univariate result (p <0.05), the biological plausibility and the low rate of missing data.

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 SurePathTM has been approved by the FDA since 1997. Currently, the SurePathTM is used for endometrial cells, body fluids, bronchoscopy aspirates, and thyroid fine needle aspirates. There is an advantage that the denaturation is small, the density of the cells is uniform, and the read area is small so that the read time can be shortened. Therefore, investigators plan to apply the SurePathTM test for pancreatic EUS-FNA specimens. Morphological comparative analysis is needed before completely replacing the existing classical smear test method. The aim of this study is to confirm that the SurePathTM is not inferior and is more accurate than the classical smear test.

Several studies suggested that dysbacteriosis usually happened in patients with intestinal failure (IF). However, differences of microbiota diversity in small intestine stoma effluents and colonic faeces were rarely studies. Thus this study is aimed to investigate the microbiota compositions and differences of output of small intestine stoma and colon in pediatric IF patients. Fecal samples from IF patients. Each patient received fistula closure in our centre and fecal samples from both small intestinal stoma and colon were collected. Fecal microbial compositions were determined by high-throughput sequencing.

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.