Ashraf et al selected people with lung nodules from the Danish Lung Cancer Screening Trial, referring them for PET. Having a suspicious PET scan, or a volume-doubling time (VDT) of < 1 year, each separately had a sensitivity of 71% and a specificity of 91% for lung cancer. Combining PET data with VDT improved sensitivity [… read more]
Sleep medicine, a 3,000-year history: Kirsch DB, CHEST 2011;139:939-946.
A retrospective look at 447 patients with stage I non-small cell lung cancer by Inoue et al suggests yes, but without affecting survival. When cancer recurred in those initially diagnosed by CT-guided needle biopsy, pleural dissemination was more likely (8 of 13 recurrences). However, 5-year disease free survival was 89% in the CT-biopsy group and [… read more]
Status epilepticus, refractory, treatment of: Holtkamp M, Curr Opin Crit Care 2011;17:94-100.
Subarachnoid hemorrhage, critical care of: Wartenburg KE, Curr Opin Crit Care 2011;17:85-93.
In 173 patients free of bronchiolitis obliterans syndrome at least 6 months post-transplant, having 10 or more colony-forming units of mesenchymal cells in bronchoalveolar lavage fluid carried a >5.0 hazard ratio for subsequently developing BOS. The relation persisted after multivariate analysis, report Badri et al. AJRCCM 2011;183:1062-1070.
Tako-tsubo cardiomyopathy, natural history of: Parodi G et al, CHEST 2011;139:887-892.
Fang et al prospectively observed 126 patients undergoing lung transplant at 9 U.S. centers. PA pressure was obtained invasively in the OR just after transplant. Those who developed grade 3 primary graft dysfunction at 72 hours (1′ endpoint) had mPAP of 38.5 mm Hg, compared to 29.6 for those who did not; the relationship persisted [… read more]
Venous thromboembolism, long term management of: Bauer K, JAMA 2011;305:1336-1345.
Analyzing 50,481 victims of prolonged mechanical ventilation in Taiwan 1997-2007, Hung et al report outcomes were frankly terrible, with median survival of about 4 months. Those with a primary indication of neurologic damage fared significantly better. Those with a PMV indication of COPD, younger than 85, had 6-18 months median survival. Authors take the additional [… read more]
Viral community-acquired pneumonia: Ruuskanen O, Lancet 2011;377:1264-1275.
Psychiatrist Aaron Lazare from U-Mass has been writing and thinking about humiliation in medical education and practice for years. This engrossing article exposes the destructiveness and persistence of this toxic emotion that he argues is sadly endemic in our profession. CHEST 2011;139:746-751.
Serious Infections in Intensive Care Units: 100+ pages, 12 articles reflecting the state of the art on managing infections and antibotic usage in the ICU. Sem Resp Crit Care Med, April 2011. Review.
Lettieri et al prospectively observed 210 patients with obstructive sleep apnea, who were diagnosed & titrated in-lab or at home. Those who were diagnosed and titrated at home and managed through their primary care clinic had equivalent adherence with CPAP therapy (~70% of nights; ~4.5 hrs/night; regular use ~52%) to those diagnosed and titrated in-lab [… read more]
Workshop on molecular diagnostics for respiratory tract infections: Procalcitonin shows promise as a biomarker for differentiating bacterial from viral pneumonias, and to assess response to therapy. Rapid PCR for MRSA in sputum may become available after further development & testing. Molecular tests for S. pneumonia in respiratory secretions currently are uninterpretable in practice, due to [… read more]
Combating antimicrobial resistance; Policy recommendations to save lives: Clin Infect Dis 2011;52 (supplement 5). ** COMMENTARY by Brad Spellberg, MD **
Candida urinary tract infections: Clin Infect Dis 2011;52 (supplement 6).
Depriving young and old adults (n=16) of sleep for 24 hours, Robillard et al report that the elderly (mean 64 years) had increased systolic blood pressure and orthostasis, compared to the young people. Sleep 2011;34:online.
An excess amount of the chaos and stress endemic to ICUs is due to poor systems engineering (think alarm fatigue); a rational, integrated approach to design & technology selection is needed to make ICUs more effective and safer for patients, argue Mathews & Pronovost. Academic health systems should fill the leadership vacuum, organize stakeholders and [… read more]
Re-heating data from the APPLES study, Quan et al report that in a cohort of 1,204 adults with OSA randomized to sham or real CPAP and followed longitudinally, there was little detectable difference in cognitive functioning after treatment or sham treatment, suggesting untreated OSA has little effect on cognitive function. Sleep 2011;34:online.