Crit Care Resusc
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Observational Study
Nosocomial infections acquired by patients treated with extracorporeal membrane oxygenation.
Infectious complications in patients treated with extracorporeal membrane oxygenation (ECMO) are a frequent contributor to morbidity and mortality in this group. Defining the characteristics of ECMO-related infections may inform treatment decisions, including antimicrobial therapy. ⋯ Infectious complications are common in ECMO patients and are associated with longer durations of hospital admission. Isolated pathogens were predominantly hospital-acquired Gram-negative bacteria and yeasts. Immunosuppression and treatment with VA ECMO were found to be specific risk factors for infection.
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The use of post-cardiotomy extracorporeal life support (PC-ECLS) has increased worldwide over the past years but a concurrent decrease in survival to hospital discharge has also been observed. We analysed use and outcome of PC-ECLS at the Maastricht University Medical Center. ⋯ Our experience confirms an increased use of PC-ECLS during the last 10 years and shows that, by carefully addressing patient management and complications, survival rat e may be satisfactory, and improved outcome may be achieved in such a challenging ECLS setting.
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Comparative Study Observational Study
Comparison of continous-wave Doppler ultrasound monitor and echocardiography to assess cardiac output in intensive care patients.
Continuous-wave Doppler (CWD) ultrasound through the left ventricular outflow tract is one modality used for non-invasive cardiac output measurement. The ultrasonic cardiac output monitor (USCOM) is a relatively new monitor which uses a small, transcutaneous ultrasound probe to measure cardiac output with CWD via the suprasternal window. It is faster and less complex to train new users than conventional echocardiography. In addition to stroke volume (SV), the USCOM can calculate stroke volume variation (SVV) and the Smith-Madigan inotropy index (SMII), which is an estimate of the pre-load independent contractility of the myocardium. ⋯ SV (and thus cardiac output) measured using the USCOM correlated well with echocardiographic cardiac output measurement, which suggests that the USCOM could be a valuable haemodynamic tool for assessment of cardiac output and fluid responsiveness in critically ill patients if patients with aortic stenosis are excluded. Inotropy, as a parameter of low cardiac output, was not useful in this cohort of patients.
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Severe hyperlactataemia in patients after cardiac surgery is associated with poor prognosis and implies possible splanchnic hypoperfusion. Peripheral venoarterial extracorporeal membrane oxygenation (splanchnic ECMO) may be more effective at reducing lactic acidosis for these patients. ⋯ In a selected cohort of patients who had had cardiac surgery with severe post-operative hyperlactataemia, despite an acceptable cardiac index and a mixed venous oxygen saturation, splanchnic ECMO appeared to reduce overall lactate levels and time to normalisation of lactataemia.
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Randomized Controlled Trial Multicenter Study
The Plasma-Lyte 148 v Saline (PLUS) study protocol: a multicentre, randomised controlled trial of the effect of intensive care fluid therapy on mortality.
0.9% sodium chloride (saline) is the most commonly administered resuscitation fluid on a global basis but emerging evidence suggests that its high chloride content may have important adverse effects. ⋯ The PLUS study will provide high-quality data on the comparative safety and efficacy of Plasma-Lyte 148 compared with saline for resuscitation and compatible crystalloid fluid therapy in critically ill adult patients.