69 research outputs found

    Dynamic flow synthesis of porous organic cages

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    The dynamic covalent synthesis of two imine-based porous organic cages was successfully transferred from batch to continuous flow. The same flow reactor was then used to scramble the constituents of these two cages in differing ratios to form cage mixtures. Preparative HPLC purification of one of these mixtures allowed rapid access to a desymmetrised cage molecule.We thank the Engineering and Physical Sciences Research Council (EPSRC) for financial support under the Grants EP/H000925/1 (AIC), EP/K009494/1 (SVL) and EP/M004120/1 (SVL), and Pfizer Worldwide Research & Development (CB). The authors would like to thank EPSRC Dial-a-Molecule Grand Challenge Network (EP/K004840/1) for funding a placement with SVL via the Interdisciplinary Mobility Funding scheme (AGS).This is the author accepted manuscript. The final version is available from RSC via http://dx.doi.org/10.1039/C5CC07447

    Haemodynamic Balance in Acute and Advanced Heart Failure: An Expert Perspective on the Role of Levosimendan

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    Acute and advanced heart failure are associated with substantial adverse short- and longer-term prognosis. Both conditions necessitate complex treatment choices to restore haemodynamic stability and organ perfusion, relieve congestion, improve symptoms and allow the patient to leave the hospital and achieve an adequate quality of life. Among the available intravenous vasoactive therapies, inotropes constitute an option when an increase in cardiac contractility is needed to reverse a low output state. Within the inotrope category, levosimendan is well suited to the needs of both sets of patients since, in contrast to conventional adrenergic inotropes, it has not been linked in clinical trials or wider clinical usage with increased mortality risk and retains its efficacy in the presence of beta-adrenergic receptor blockade; it is further believed to possess beneficial renal effects. The overall haemodynamic profile and clinical tolerability of levosimendan, combined with its extended duration of action, have encouraged its intermittent use in patients with advanced heart failure. This paper summarises the key messages derived from a series of 12 tutorials held at the Heart Failure 2019 congress organised in Athens, Greece, by the Heart Failure Association of the European Society of Cardiology

    2016 ESC Guidelines for the diagnosis and treatment of acute and chronic heart failure: The Task Force for the diagnosis and treatment of acute and chronic heart failure of the European Society of Cardiology (ESC). Developed with the special contribution of the Heart Failure Association (HFA) of the ESC

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    2016 ESC on Acute and Chronic H

    Rationale and design of the multicentre randomized trial investigating the efficacy and safety of pulsed infusions of levosimendan in outpatients with advanced heart failure (LevoRep study)

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    Advanced chronic heart failure (CHF) is a clinical syndrome with high morbidity and mortality that often requires inotropic support for the alleviation of symptoms and congestion. There are no definite evidence-based data on the safety and efficacy of intermittent infusions of inotropic agents in this severe clinical condition. The purpose of the LevoRep study is to clarify whether pulsed infusions of the new inotropic agent levosimendan administered in an outpatient setting can safely improve exercise capacity, quality-of-life (QoL), and outcome in advanced CHF patients. The LevoRep study is a prospective, randomized, double-blind, placebo-controlled, two-armed, parallel-group, multicentre trial. The study is designed to investigate the effects of pulsed infusions of levosimendan (6 h administration at 0.2 mu g/kg/min every 2 weeks) on the composite endpoint (primary endpoint) comprising changes in functional capacity and QoL (20% or greater improvement in the 6 min walk test and 15% or higher score on the Kansas City Cardiomyopathy Questionnaire) at the end of the 24 week study period. In addition, short-term (8 weeks from randomization) and long-term (24 weeks from randomization) event-free survival (secondary endpoint) will be assessed. The LevoRep study aims to include 120 outpatients with advanced CHF. LevoRep is the first prospective randomized trial to assess the effects of pulsed infusions of an inotrope on hard endpoints as well as on the safety in patients with advanced CHF on an outpatient basis. The results are expected to promote the development of evidence-based recommendations for the ambulatory management of patients with end-stage heart failure
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