Critical Care Physicians (critical + care_physician)

Distribution by Scientific Domains


Selected Abstracts


Diagnosing acute lung injury in the critically ill: a national survey among critical care physicians

ACTA ANAESTHESIOLOGICA SCANDINAVICA, Issue 10 2009
A. P. J. VLAAR
Background: Incidence reports on acute lung injury (ALI) vary widely. An insight into the diagnostic preferences of critical care physicians when diagnosing ALI may improve identification of the ALI patient population. Methods: Critical care physicians in the Netherlands were surveyed using vignettes involving hypothetical patients and a questionnaire. The vignettes varied in seven diagnostic determinants based on the North American European Consensus Conference and the lung injury score. Preferences were analyzed using a mixed-effects logistic regression model and presented as an odds ratio (OR) with a 95% confidence interval. Results: From 243 surveys sent to 30 hospitals, 101 were returned (42%). ORs were as follows: chest X-ray consistent with ALI: OR 1.7 (1.3,2.3), high positive end-expiratory pressure (PEEP) (15 cmH2O): OR 5.0 (3.9,6.6), low pulmonary artery occlusion pressures (PAOP) (<18 mmHg): OR 4.7 (3.6,6.1), low compliance (30 ml/cmH2O): OR 0.7 (0.5,0.9), low PaO2/FiO2 (<250 mmHg): OR 9.2 (6.9,12.3), absence of heart failure: OR 1.2 (0.9,1.5), presence of a risk factor for ALI (sepsis): OR 1.0 (0.8,1.3). The questionnaire revealed that critical care physicians with an anesthesiology background differed from physicians with an internal medicine background with regard to hemodynamic variables when considering an ALI diagnosis (P<0.05). Conclusions: Dutch critical care physicians consider the PEEP level, but not the presence of a risk factor for ALI, as an important factor to diagnose ALI. Background specialty of critical care physicians influences diagnostic preferences and may account for variance in the reported incidence of ALI. [source]


Research Methods of Inquiry

ACADEMIC EMERGENCY MEDICINE, Issue 11 2006
Joel Rodgers MA
Incidents of significant consequence that create surge may require special research methods to provide reliable, generalizable results. This report was constructed through a process of literature review, expert panel discussion at the journal's consensus conference, and iterative development. Traditional clinical research methods that are well accepted in medicine are exceptionally difficult to use for surge incidents because the incidents are very difficult to reliably predict, the consequences vary widely, human behaviors are heterogeneous in response to incidents, and temporal conditions prioritize limited resources to response, rather than data collection. Current literature on surge research methods has found some degree of reliability and generalizability in case-control, postincident survey methods, and ethnographical designs. Novel methods that show promise for studying surge include carefully validated simulation experiments and survey methods that produce validated results from representative populations. Methodologists and research scientists should consider quasi-experimental designs and case-control studies in areas with recurrent high-consequence incidents (e.g., earthquakes and hurricanes). Specialists that need to be well represented in areas of research include emergency physicians and critical care physicians, simulation engineers, cost economists, sociobehavioral methodologists, and others. [source]


Diagnosing acute lung injury in the critically ill: a national survey among critical care physicians

ACTA ANAESTHESIOLOGICA SCANDINAVICA, Issue 10 2009
A. P. J. VLAAR
Background: Incidence reports on acute lung injury (ALI) vary widely. An insight into the diagnostic preferences of critical care physicians when diagnosing ALI may improve identification of the ALI patient population. Methods: Critical care physicians in the Netherlands were surveyed using vignettes involving hypothetical patients and a questionnaire. The vignettes varied in seven diagnostic determinants based on the North American European Consensus Conference and the lung injury score. Preferences were analyzed using a mixed-effects logistic regression model and presented as an odds ratio (OR) with a 95% confidence interval. Results: From 243 surveys sent to 30 hospitals, 101 were returned (42%). ORs were as follows: chest X-ray consistent with ALI: OR 1.7 (1.3,2.3), high positive end-expiratory pressure (PEEP) (15 cmH2O): OR 5.0 (3.9,6.6), low pulmonary artery occlusion pressures (PAOP) (<18 mmHg): OR 4.7 (3.6,6.1), low compliance (30 ml/cmH2O): OR 0.7 (0.5,0.9), low PaO2/FiO2 (<250 mmHg): OR 9.2 (6.9,12.3), absence of heart failure: OR 1.2 (0.9,1.5), presence of a risk factor for ALI (sepsis): OR 1.0 (0.8,1.3). The questionnaire revealed that critical care physicians with an anesthesiology background differed from physicians with an internal medicine background with regard to hemodynamic variables when considering an ALI diagnosis (P<0.05). Conclusions: Dutch critical care physicians consider the PEEP level, but not the presence of a risk factor for ALI, as an important factor to diagnose ALI. Background specialty of critical care physicians influences diagnostic preferences and may account for variance in the reported incidence of ALI. [source]


Posterior reversible encephalopathy syndrome: a report of a case with atypical features

ANAESTHESIA, Issue 11 2008
J. N. Pratap
Summary We report a case of a young woman presenting with profound depression of consciousness and intra-uterine death in the late stages of an unbooked pregnancy. She proceeded to develop features of cardiovascular, renal, hepatic and haematological failures. The patient was challenging to manage in view of uncertainty regarding the underlying cause, and required multidisciplinary consultation. A diagnosis was subsequently made of posterior reversible encephalopathy syndrome in the context of pre-eclampsia. We review the typical presentation and wide-ranging associations of this recently described clinico-neuroradiological syndrome, and look at how appropriate management may lead to rapid resolution of its often life-threatening features. We highlight the importance to anaesthetists and critical care physicians of recognising even atypical cases such as this one in view of key differences in management from similarly presenting conditions. [source]