Have your cake and eat it? Insulin strengthens the stunned heart.
Have your cake and eat it? Insulin strengthens the stunned heart.
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蛋糕吃完了吗?
DOI:
10.1097/ccm.0b013e31818723d2
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发表时间:
2008
影响因子:
8.8
通讯作者:
Taegtmeyer,Heinrich
中科院分区:
文献类型:
--
作者:
Taegtmeyer,Heinrich
Not long ago, a respected col-league at my hospital asked if our intensive care unit (ICU) had a weaning protocol. I was shocked because we had one for 5 yrs, developed by an enthusiastic team, following published guidelines (1). Although we routinely measure performance, we do not monitor adherence to our weaning protocol. If asked, I would have assumed naively that our practice was excellent and the protocol was followed more closely than it really was. Lesson learned: if you do not track performance, you do not really know what is happening in your unit. The frustrating gap between recommended and actual practice is particularly poignant for sepsis management. When used appropriately, the life-saving potential of individual therapies is staggering: a 16% absolute risk reduction for early goal directed therapy (2), 9% for low tidal volume ventilation (3), 17% for bacteremic patients managed with tight glucose control (4), 10% for low-dose corticosteroids (5), and at least 6% for recombinant activated protein C (6). The impressive math once prompted Dr. Gordon Bernard to suggest at a national meeting that we would soon have more patients leaving the ICU than going in. Although sepsis case fatality rates are decreasing (7), morbidity and mortality remain too high and recommended lifesaving therapies are used too inconsistently (8, 9). In this issue of Critical Care Medicine, Brunkhorst et al.(10) add to a growing list of studies describing the failure to employ evidence-based practice. On a single day in 2003, the investigators studied a random sample of 214 German ICUs, representing a wide range of hospitals, from small community institutions to large ones affiliated with universities. ICU directors were asked how often several evidence-based interventions were used, including low tidal volume ventilation for acute respiratory distress syndrome/acute lung injury, tight glycemic control, activated protein C, and low-dose hydrocortisone. Charts were audited to compare survey responses to actual practice.The authors studied 366 randomly selected patients with severe sepsis or septic shock. A total of 79.9% of ICU directors reported adherence to low tidal volume strategies. However, among patients with acute respiratory distress syndrome/acute lung injury, 80.3% audited were managed with volumes above 8 mL/kg predicted body weight. Similarly, 65.9% of ICU directors reported adherence to strict glucose control whereas 66.2% of patients audited were frankly hyperglycemic. Similar gaps between perceived and actual practice were shown for all strategies studied. Findings were the same for hospitals of all sizes and affiliations, although perceived adherence was higher in larger, academic institutions.