Critical Care

Sep 112011

Stiell et al (the ROC investigators) report results of a 10-center randomized trial in the U.S. and Canada. Among 9,933 patients with out-of-hospital cardiac arrest randomized to receive either 30-60 seconds or 2 minutes of uninterrupted CPR before rhythm analysis, there were no differences in survival, or survival to discharge with good functional status (primary [… read more]

Sep 082011

Part 1 of Levine et al’s excellent review on toxicology in the ICU. Some of their helpful recommendations/reminders: False positive UDS are common for tricyclics (diphenhydramine/Benadryl, carbamazepine, quetiapine/Seroquel), as are false negatives for benzodiazepines (lorazepam/Ativan, alprazolam/Xanax). The osmolal gap is elevated in ethanol, methanol, ethylene glycol, isopropanol, propylene glycol toxicity, but also in shock and [… read more]

Aug 242011

Muscedere J. Subglottic secretion drainage for the prevention of ventilator-associated pneumonia: A systematic review and meta-analysis. Crit Care Med 2011;39:1985-1991. In short, it probably works to prevent ventilator-associated pneumonia (13 randomized trials, n=2,442. 12 were positive, pooled risk ratio 0.55, associated with 1-1.5 shorter days in the ICU and on the ventilator). So why not use [… read more]

Aug 212011

For 10 years, Zahar et al prospectively observed 3,588 patients developing severe sepsis & septic shock who ended up in French ICUs. Their sample captured a broad array of infections acquired in the community, the hospital ward, or the ICU (about 1/3 each). After multivariate assessment, they could not find an independent influence on mortality [… read more]

Aug 172011

Johnson et al reviewed charts in a retrospective case-control cohort study on 754 consecutive patients at Barnes-Jewish with severe sepsis or shock due to Gram-negative bacteremia. The exposure was receipt of antibiotics in the previous 90 days. 310 of the bacteremic patients had received antibiotics previously. Compared to unexposed controls, the previously antibiotic-exposed had a [… read more]

Aug 112011

Do we need to worry about pre-existing heparin-induced thrombocytopenia antibodies in people admitted with pulmonary embolism / deep venous thrombosis? Or can we keep happily slinging heparin at first sight? Warkentin et al analyze data from the Matisse VTE studies, which enrolled 3,994 patients with DVT or PE. All had ELISA HIT antibodies collected at [… read more]

Jul 292011

O’Connor et al report results of a randomized trial of 7,141 people with acute decompensated heart failure who got nesiritide or placebo in addition to standard care. To sum up, nesiritide didn’t seem to do much of anything at all (for dyspnea, risk of rehospitalization or death, or any other endpoint). NEJM 2011;365:32-43.

Jul 152011

3% saline infusions have become standard care for increased intracranial pressure at many centers, based on mostly anecdotal evidence. Hauer et al looked retrospectively at 100 patients receiving 3% saline for severe stroke in 2008-2009 (intracerebral hemorrhage, subarachnoid hemorrhage, or ischemic) and compared them to 115 historical controls, 2007-2008 with “equal” underlying disease. Hypertonic saline [… read more]

Jul 142011

Tranexamic acid has a small beneficial effect on hemorrhage from trauma or surgery. Among 270 subjects with intracranial hemorrhage due to trauma, those randomized to tranexamic acid showed a trend toward improved outcomes (mortality, hemorrhage extension, new bleeding foci) compared to placebo. Authors propose a large trial to explore further. BMJ 2011;343:d3795. FREE FULL TEXT

Jun 262011

The best approach to nutrition during critical illness is unknown. Casaer et al randomized 4,640 critically-ill patients who could not get enough calories by enteral feeding to receive TPN either on ICU day 3, or to wait until ICU day 8. While waiting for their TPN in the late group, patients got calories in sugar [… read more]