Tactical Medicine News Blog
MIA 2012: Hoffmann U et al. Coronary CT angiography versus standard evaluation in acute chest pain. N Engl J Med. 2012 Jul 26;367(4):299-308.
Posted by Michelle Lin, MD on
Bottom Line 1 ROMICAT-II study: Coronary CT angiography (CCTA) is a safe and faster diagnostic strategy than the standard evaluation of low-to-intermediate risk chest pain patients. CCTA, however, results in higher radiation exposure and more downstream testing.
MIA 2012: Backes D, et al. Time-dependent test characteristics of head computed tomography in patients suspected of nontraumatic subarachnoid hemorrhage. Stroke. 2012 Aug;43(8):2115-9
Posted by Michelle Lin, MD on
Bottom Line 1 100% sensitive and specific if < 6 hours from headache onset 90% sensitive if after 6 hours A noncontrast head CT can effectively rule out atraumatic subarachnoid hemorrhage (aSAH) in patients who present with acute headache within six hours after ictus. Those who present outside this time window or present atypically for SAH (ie neck pain) require further workup, including a lumbar puncture.
MIA 2012: Samuels-Kalow ME et al. Effective discharge communication in the emergency department. Ann Emerg Med. 2012 Aug;60(2):152-9
Posted by Michelle Lin, MD on
Bottom Line 1 This study tells us what we might already suspect: in the busy, hectic and loud Emergency Department, patients we discharge often lack comprehension of their hospital course. Additionally, they are frequently unable to report their diagnosis, a discharge plan or reasons they should return to the ED.
MIA 2012: Pearce MS et al. Radiation exposure from CT scans in childhood and subsequent risk of leukaemia and brain tumours: a retrospective cohort study. Lancet. 2012 Aug 4;380(9840):499-505.
Posted by Michelle Lin, MD on
Bottom Line 1 Interpret this data how you will: Exposure to 2-3 CT scans of the head will triple the risk of brain tumors; 5-10 head CT scans will triple the risk of leukemia. In absolute terms, this translates into approximately 1 excess case of leukemia and 1 excess brain tumor per 10,000 patients.
MIA 2012: IST-3 collaborative group et al. The benefits and harms of intravenous thrombolysis with recombinant tissue plasminogen activator within 6 h of acute ischaemic stroke (the third international stroke trial [IST-3]): a randomised controlled tri...
Posted by Michelle Lin, MD on
Bottom Line 1 Giving tPA to stroke patients within 6 hrs of symptom onset does not improve mortality or independence at 6 months. However, patients might be a little “less disabled” while they are alive. Maybe.