Publications by authors named "Bert Loef"

Supplemental oxygen is widely administered to ICU patients, but appropriate oxygenation targets remain unclear. This study aimed to determine whether a low-oxygenation strategy would lower 28-day mortality compared with a high-oxygenation strategy. This randomized multicenter trial included mechanically ventilated ICU patients with an expected ventilation duration of at least 24 hours.

View Article and Find Full Text PDF

Background: Peak anti-Xa activity of low-molecular-weight heparin nadroparin is measured 3 to 5 hours after subcutaneous injection. In critically ill patients, physiological changes and medical therapies may result in peak activities before or after this interval, possibly impacting dosing.

Objectives: The primary objective was to determine the percentage of critically ill patients with adequately estimated peak activities drawn 3 to 5 hours after subcutaneous administration of a therapeutic dose of nadroparin.

View Article and Find Full Text PDF

Background: In the previously reported SAPS trial (https://clinicaltrials.gov/ct2/show/NCT01139489), procalcitonin-guidance safely reduced the duration of antibiotic treatment in critically ill patients. We assessed the impact of shorter antibiotic treatment on antimicrobial resistance development in SAPS patients.

View Article and Find Full Text PDF
Article Synopsis
  • This study looked at how burn patients in intensive care are helped with breathing machines, specifically using something called lung-protective ventilation.
  • Researchers checked the breathing settings of 160 patients from 28 hospitals in 16 countries to see if using low volumes of air helped them recover better.
  • They found that most patients were getting this type of ventilation, but it didn't seem to make a big difference in how many days they were off the ventilator or if they were alive 28 days later.
View Article and Find Full Text PDF

Objective: Critically ill patients admitted to the intensive care unit (ICU) often develop atrial fibrillation (AF), with an incidence of around 5%. Stroke prevention in AF is well described in clinical guidelines. The extent to which stroke prevention is prescribed to ICU patients with AF is unknown.

View Article and Find Full Text PDF

Background: Pulmonary hypercoagulopathy is intrinsic to inhalation trauma. Nebulized heparin could theoretically be beneficial in patients with inhalation injury, but current data are conflicting. We aimed to investigate the safety, feasibility, and effectiveness of nebulized heparin.

View Article and Find Full Text PDF

Objective: Ventilation strategies aiming at prevention of ventilator-induced lung injury (VILI), including low tidal volumes (V) and use of positive end-expiratory pressures (PEEP) are increasingly used in critically ill patients. It is uncertain whether ventilation practices changed in a similar way in burn patients. Our objective was to describe applied ventilator settings and their relation to development of VILI in burn patients.

View Article and Find Full Text PDF

To investigate the effects of fluid resuscitation on cerebral hemodynamics in sepsis, the following set of transcranial Doppler (TCD) parameters was used: maximal change in flow velocity (FV) during stroke onset (acc), maximal FV during first (sys1) or second (sys2) phase of systole and mean diastolic FV (dias@560). We aim to evaluate changes in cerebral hemodynamics that result from (i) sepsis and (ii) adequate fluid resuscitation in critically ill septic patients. In the majority of 16 septic patients sys2 was initially absent but reappeared during the period of fluid resuscitation; whereas sys2 absence was never seen in healthy controls.

View Article and Find Full Text PDF

Background: In critically ill patients, antibiotic therapy is of great importance but long duration of treatment is associated with the development of antimicrobial resistance. Procalcitonin is a marker used to guide antibacterial therapy and reduce its duration, but data about safety of this reduction are scarce. We assessed the efficacy and safety of procalcitonin-guided antibiotic treatment in patients in intensive care units (ICUs) in a health-care system with a comparatively low use of antibiotics.

View Article and Find Full Text PDF

Background: Pulmonary coagulopathy is a hallmark of lung injury following inhalation trauma. Locally applied heparin attenuates lung injury in animal models of smoke inhalation. Whether local treatment with heparin benefits patients with inhalation trauma is uncertain.

View Article and Find Full Text PDF

Purpose: To investigate the interchangeability of mixed and central venous-arterial carbon dioxide differences and the relation between the central difference (pCO₂ gap) and cardiac index (CI). We also investigated the value of the pCO₂ gap in outcome prediction.

Methods: We performed a post hoc analysis of a well-defined population of 53 patients with severe sepsis or septic shock.

View Article and Find Full Text PDF

Background: Surface neutrophil CD64 expression is upregulated in patients with bacterial infection. As it was suggested that the CD64 index could be used to detect sepsis in hospitalized patients, we questioned whether the CD64 index could discriminate between septic patients and postoperative surgical patients, defined as systemic inflammatory response syndrome (SIRS), both admitted at the intensive care unit (ICU). Furthermore, we wondered whether the CD64 index was an improved diagnostic compared to standard assays used at the laboratory.

View Article and Find Full Text PDF

Background: Potassium disorders can cause major complications and must be avoided in critically ill patients. Regulation of potassium in the intensive care unit (ICU) requires potassium administration with frequent blood potassium measurements and subsequent adjustments of the amount of potassium administrated. The use of a potassium replacement protocol can improve potassium regulation.

View Article and Find Full Text PDF

Objective: Intensive insulin therapy is associated with the risk of hypoglycemia and increased costs of material and personnel. We therefore evaluated the safety and efficiency of a computer-assisted glucose control protocol in a large population of critically ill patients.

Design And Setting: Observational cohort study in three intensive care units (32 beds) in a 1,300-bed university teaching hospital.

View Article and Find Full Text PDF
Article Synopsis
  • After heart surgery, it's important to keep blood sugar levels normal, and doctors studied how a medicine called dexamethasone affects these levels.
  • They looked at two groups of patients: one got a lower dose of dexamethasone before surgery, and the other got an extra dose after surgery.
  • The study found that patients who received more dexamethasone had higher blood sugar levels afterward, so they need more careful monitoring and treatment for high blood sugar.
View Article and Find Full Text PDF

Background: Circulating vascular endothelial growth factor (VEGF) was studied as a substitute endpoint for treatment response after VEGF plasmid therapy. The effect of coronary artery bypass surgery (CABG) with cardiopulmonary bypass (CPB) on systemic VEGF levels are however largely unknown, therefore, we studied the effect of this procedure to measure VEGF levels after surgery alone.

Methods: Fourteen patients requiring CABG were included.

View Article and Find Full Text PDF

Introduction: A stay in the intensive care unit (ICU), although potentially life-saving, may cause considerable discomfort to patients. However, retrospective assessment of discomfort is difficult because recollection of stressful events may be impaired by sedation and severe illness during the ICU stay. This study addresses the following questions.

View Article and Find Full Text PDF

Study Objective: Endotracheal suctioning in intubated patients is routinely applied in most ICUs but may have negative side effects. We hypothesised that on-demand minimally invasive suctioning would have fewer side effects than routine deep endotracheal suctioning, and would be comparable in duration of intubation, length of stay in the ICU, and ICU mortality.

Design: Randomised prospective clinical trial.

View Article and Find Full Text PDF

Objective: Many patients have an unpleasant recollection of routine endotracheal suctioning after discharge from the Intensive Care Unit (ICU). We hypothesized that through minimally invasive airway suctioning discomfort and stress may be prevented, resulting in less recollection.

Design: A prospective randomized clinical trial.

View Article and Find Full Text PDF

Background: This study is designed to examine a possible association of cardiopulmonary bypass (CPB) support and outcome of lung transplantation in a well-balanced group of emphysema patients.

Methods: We performed a retrospective analysis of 62 consecutive primary bilateral lung transplantations for emphysema. Risk factors for their possible association with patient survival were analyzed by multivariate logistic regression.

View Article and Find Full Text PDF

Objective: To evaluate the effect of immediate postoperative extubation and postoperative ventilation after minimally invasive direct coronary artery bypass (MIDCAB) surgery and to assess the role of epidural anesthesia.

Design: Randomized prospective study.

Setting: University hospital, single institution.

View Article and Find Full Text PDF