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Filter by:The slowly accruing evidence on the treatment of patients with left main coronary artery (LMCA) disease drove evolution in guidelines, that currently establish equivalent safety and efficacy for percutaneous coronary intervention (PCI) as compared to surgery, with a class of recommendation that is subjected to the extension and complexity of concomitant coronary artery disease, as assessed by the SYNTAX score. The severity of LMCA disease, although extremely relevant due to the extent of the supplied myocardium, is often difficult to assess with traditional angiography, due to lack of appropriate angiographic views, absence of a true "reference" segment, interaction with the intubating catheter. Intravascular techniques with either imaging or functional assessment have been variously tested, although with a disturbing rate of discordant results; moreover, they are frequently underused for a number of reasons, including the additional time needed to assess both left anterior descending (LAD) and left circumflex (LCx) arteries, technical challenges, costs and the small risk associated with maneuvering such devices. Fractional flow reserve (FFR) measured from the coronary angiogram (FFRangio) alone recently documented a high diagnostic accuracy compared with pressure-wire derived FFR. As for the anatomical localization, the majority of LMCA lesions occur at the bifurcation, where PCI results are less favourable. The distal LMCA differs from the other bifurcations in several characteristics: a) a notable mismatch between the LMCA and the left anterior descending (LAD) artery, hampering the selection of an adequately sized stent, b) the presence of a trifurcation, with a large ramus arising from LMCA in about 10% of cases, c) the presence of left or co-dominant circulation, with the LMCA supplying all or nearly all left ventricular myocardium in about 15% of cases. Therefore, although the European Bifurcation Club (EBC) recommends a provisional side branch approach in most cases of distal LMCA disease, the threshold for placing a second stent in the side branch may be lower in lesions located on LM bifurcation compared with non-LMCA bifurcations. As for double stenting, the evidence is controversial and a consensus is lacking. Moreover, the optimal treatment of patients with LM trifurcations is still undefined. The aim of this study is therefore to determine the optimal strategy for the treatment of LM bifurcated lesions.
cross sectional study to detect frequency of functional gastrointestinal disorders among schhol aged children complaining of recurrent abdominal pain
The IVL Left Main study is a prospective non-randomised pilot study to investigate the mechanical and procedural outcomes and safety of distal left main stenting with coronary lithotripsy in addition to standard techniques in patients with calcific left main disease and a clinical indication for revascularisation.
Endodontic post-treatment pain management is one of the most challenging problems in the clinical practice of endodontics. Although this pain is decreased after root canal treatment, there may be residual symptoms due to inflammation. It has been reported that up to 80% of patients with preoperative pain, will report pain after endodontic treatment, which might range from mild to severe. Management of endodontic pain should involve all steps of treatment including preoperative pain control through accurate diagnosis and reduction of anxiety, intraoperative pain control through effective and profound local anesthetic, operative techniques and that can be achieved through a variety of pharmacologic agents. Many mechanisms have been proposed to explain the reason for postoperative pain including the sensitization of nociceptors by inflammatory mediators. Among these chemical inflammatory mediators are the prostaglandins which is the terminal product of arachidonic acid metabolism, through the cyclooxygenase (COX) pathway. Endodontic treatment can cause the release of inflammatory mediators (e.g. prostaglandins, leukotrienes, bradykinin, platelet- activating factor and substance P) into the surrounding periapical tissues, causing pain fibers to be directly stimulated (by bradykinin for instance) or sensitized (by prostaglandins). In addition, the vascular dilation and increased permeability as a consequence of periradicular inflammation, cause edema and increased interstitial tissue response. Single-visit root canal treatment is common in some endodontic practices. However, one of the main concerns with this approach has been the fear of post- operative pain. Mechanical, chemical and microbiological injuries to the peri- radicular tissues during root canal treatment have been suggested as possible causes of post-operative pain. The role of irrigating solutions used during root canal treatment to help control post-operative pain is unclear. While certain studies have observed a reduction in post-operative pain with particular types and concentrations of irrigating solutions, other studies have reported no difference in post-operative pain with the different irrigating solutions .
This clinical trial is intended to evaluate the efficacy and safety of the administration of ondansetron in children with mild-moderate dehydration. The target population will be children between 4 and 13 years old who present vomiting.
This study aims to evaluate the effect of early vs late enteral feeding after abdominal surgery on neonatal outcome after surgery, weight gain, length of hospital stay, time to reach full enteral feeding, time to pass first stool, surgical site infections, sepsis and electrolyte disturbances.
Staphylococcus lugdunensis is a coagulase-negative Staphylococcus (CoNS) belonging to the normal human skin flora. It is responsible for a wide variety of infections, such as skin and soft tissue infections, bone and joint infections, but also bacteraemia and endocarditis. Although the implication of S. lugdunensis in infectious diseases is proven, many questions remain both in terms of clinical and molecular epidemiology. In this context, INHOSTAL is the first prospective, bicentric study, which will comprehensively include all patients with S. lugdunensis infection (based on microbiological and clinical data) in two French university hospitals. The main objective of this study is thus to determine the incidence of S. lugdunensis infections in hospitalized patients. Moreover, the originality of this project is to compare the characteristics of S. lugdunensis infections with those of infections caused by S. aureus and other species of CoNS. Thereby, the clinical epidemiology of these infections will be compared (i.e. types of infection, mode of acquisition, host risk factors…). Finally, complete genome of all S. lugdunensis strains will be sequenced using Illumina technology and analyzed to describe the molecular epidemiology as well as the molecular mechanisms of antibiotic resistance (compared to antibiotic susceptibility evaluated by minimum inhibitory concentrations determined by Sensititre technique). This will enable to identify if predominant clones exist, and if some strains are spreading into the hospital. The duration of the study period will be 18 months, to allow the inclusion of a total of 300 patients: 100 S. lugdunensis infections, as well as 100 S. aureus infections and 100 other species of CoNS infections.
This is a first-in-human, Phase 1, single-center, randomized, single-blind, placebo-controlled, single dose-escalation study to evaluate the safety, tolerability, PK, PD of SSS17 following oral administration in healthy subjects. Approximately 65 subjects (53 receiving active drug and 12 receiving placebo) will participate in this study.
This study was designed as a randomized, double blinded and placebo-controlled clinical trial. The aim of the study is to evaluate the efficacy and safety of Zhigancao Tang granule in patients with HFpEF of Qi-Yin dificiency.
The aim of the study is to demonstrate a correlation between body posture and the structure and function of the stomatognathic system in school-age children.