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  • 2000-2004  (8)
  • 1935-1939  (3)
  • 1890-1899  (5)
  • 11
    Electronic Resource
    Electronic Resource
    A survey of physicians' attitudes to transfusion practice in critically ill patients in the UK (2002)
    Oxford, UK : Blackwell Science Ltd
    Anaesthesia 57 (2002), S. 0 
    Details
    ISSN: 1365-2044
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Summary This study aimed to examine the attitudes of intensivists and haematologists to the use of blood and blood products using a scenario-based postal questionnaire. One hundred and sixty-two intensivists and 77 haematologists responded to the survey. In four scenarios, the baseline haemoglobin thresholds for red cell transfusion ranged from 6 to 12 g.dl−1. There was significant variation between scenarios (p 〈 0.005). Increasing age, high Acute Physiology and Chronic Health Status II score, surgery, acute respiratory distress syndrome, septic shock and lactic acidosis significantly (p 〈 0.005) modified the transfusion threshold. There were greater variations in the baseline threshold for platelet transfusion. The majority of respondents (72.3%) selected a baseline haemoglobin threshold between 9 and 10 g.dl−1. The thresholds for platelet transfusion were far less consistent.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1365-2044.2002.02509_1.x
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  • 12
    Electronic Resource
    Electronic Resource
    Blood component use in critically ill patients (2002)
    Oxford, UK : Blackwell Science Ltd
    Anaesthesia 57 (2002), S. 0 
    Details
    ISSN: 1365-2044
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Summary This prospective observational study was conducted to assess the current transfusion practice in critically ill patients. One thousand two hundred and forty-seven consecutive critically ill patients admitted between February 1999 and October 1999 were included in the study. Overall 666 (53%) patients were administered red cells. Transfused patients had significantly higher intensive care unit␣mortality but also had higher Acute Physiology and Chronic Health Evaluation II scores and longer durations of stay. The average pretransfusion haemoglobin concentration was 〈 9 g.dl−1 in 75% of transfusion episodes. The common indications for transfusion were low haemoglobin (72%) and haemorrhage (25%). Overall, 202 (16%) and 281 (22%) of the patients were transfused platelets and fresh frozen plasma, respectively. The indications for transfusion were haemorrhage, low platelet counts, prolonged prothrombin time or to provide cover for invasive interventions. Most platelet transfusions were given at values in the order of 50–100 × 109.l−1. The pretransfusion platelet count varied according to the indications for transfusion. This study showed that transfusion practice is consistent and that in general there does not seem to be an excessive use of blood components in critically ill patients.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1365-2044.2002.02514.x
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  • 13
    Electronic Resource
    Electronic Resource
    Force and Determinism (1891)
    [s.l.] : Nature Publishing Group
    Nature 43 (1891), S. 558-558 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] DR. OLIVER J. LODGE has reminded us, in your issue of March 26 (p. 491), that under physical constraint or control the direction of motion of material particles may be changed without expenditure of energy or performance of work. It does not follow from this that the direction of motion ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/043558b0
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  • 14
    Electronic Resource
    Electronic Resource
    Force and Determinism (1891)
    [s.l.] : Nature Publishing Group
    Nature 44 (1891), S. 249-249 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] I DO not think there are many non-physicists who will attempt to gainsay the fact that, under physical constraint, the direction of motion may be determined without affecting the quantity of the energy concerned, and without expenditure of energy. This is seen when the earth and sun revolve ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/044249a0
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  • 15
    Electronic Resource
    Electronic Resource
    Protective Habit in a Spider (1893)
    [s.l.] : Nature Publishing Group
    Nature 49 (1893), S. 102-102 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] MR. R. I. POCOCK'S interesting paper in your issue of November 16, leads me to place on record an observation I made last summer in the island of Arran. Sitting by a little clear pool in the granite of Glen Sannox, I noticed a spider whose web was spun in the heather which partly overhung the ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/049102a0
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  • 16
    Electronic Resource
    Electronic Resource
    Acute renal failure following cardiopulmonary bypass: a changing picture (2000)
    Springer
    Intensive care medicine 26 (2000), S. 565-571 
    Details
    ISSN: 1432-1238
    Keywords: Key words Cardiopulmonary bypass ; Acute renal failure
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Objective: To assess the incidence of acute renal failure (ARF) developing perioperatively in adult patients requiring cardiopulmonary bypass surgery (CPB) and to make comparisons with data from the same institution published earlier. Design: Prospective, observational. Setting: Tertiary referral centre for cardiopulmonary medicine. Patients and participants: All patients admitted to the intensive care unit (ICU) who developed ARF perioperatively necessitating continuous veno-venous haemofiltration (CVVH) during the 24 months January 1997–December 1998. Interventions: None. Measurements and results: Of 2337 adult patients undergoing cardiac surgery, 47 (2.0 %) needed CVVH. Patients were excluded from analysis who underwent cardiac transplantation (n = 4), pericardial surgery (n = 3) or insertion of a left ventricular assist device (n = 1). Of the remaining 39, 21 patients died in ICU (53.8 % mortality). Relatively more non-survivors suffered from diabetes, hypertension and preoperative renal dysfunction. A previous report from our Unit revealed that, in 1989–90, 2.7 % of all patients undergoing CPB required CVVH with an in-hospital mortality of 83 %. The current study population were older (65.3 vs 56.0 years in 1990), and more severely ill as evidenced by a higher percentage of patients requiring redo (30 % vs 8.6 % in 1990) and emergency (50 % vs 25.7 % in 1990) surgery. Conclusions: The need for CVVH following CPB may be diminishing despite increased risk factors. ARF-associated mortality in these circumstances is falling.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s001340051205
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