Review Articles Archives - Page 3 of 13 - PulmCCM
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Review Articles Articles

Apr 242013
 
Using procalcitonin to guide antibiotics for pneumonia

Use of Procalcitonin to Reduce Unnecessary Antibiotics by Blair Westerly, MD Acute respiratory tract infections have a wide range of disease severity and the use of antibiotics for self-limited infections contributes to antibiotic overuse and antimicrobial resistance, though we have all probably been guilty of it a time or two when we just weren’t sure [... read more]

Apr 212013
 
Anti-reflux therapy no help for most with chronic cough

Chronic Cough and Reflux: A Tangled Relationship Although we’re taught that gastroesophageal reflux disease (GERD) is a major cause of chronic cough, the truth may be more complicated, and confusing. A meta-analysis by Peter Kahrilas et al in Chest examining trials of acid-suppressing treatments for chronic cough found no significant benefit of treatment in 7 [... read more]

Mar 312013
 
What works to help people with pulmonary fibrosis feel better? (Review)

Interventions to Improve Symptoms, Quality of Life in Fibrotic ILD: Do They Work? by Brett Ley, MD Patients with fibrotic interstitial lung diseases (e.g. idiopathic pulmonary fibrosis) have a poor overall prognosis, and there are no therapies proven to halt disease progression or extend life. Further, many of these patients have debilitating symptoms, limited functional [... read more]

Mar 132013
 
Weaning from Mechanical Ventilation Update (Review)

Weaning From Mechanical Ventilation Update (See More PulmCCM Reviews) by Brett Ley, MD Nearly 800,000 patients require mechanical ventilation yearly. There’s no doubt it is a life-saving intervention, but it is one that is fraught with the potential for iatrogenesis, especially if continued for longer than necessary. That is the main message of this review in [... read more]

Feb 212013
 
Intubation in pre-hospital cardiac arrest strongly associated with worse outcomes

Intubation for Out-of-Hospital Cardiac Arrest May Harm, Not Help by Blair Westerly, MD Out of hospital cardiac arrest is a major public-health problem, and despite advances in care, survival is still low. Improved survival has been associated with early CPR, rapid defibrillation, and integrated post cardiac arrest care, but pre-hospital “advanced airway management” (i.e., intubation [... read more]

Feb 122013
 
Pulmonary Hypertension Update, Part 2: Treatment of PH (Review)

Pulmonary Hypertension 2013 Update/Review Part 2 of 2: Treatment of PH Read Part 1: Diagnosis and Classification of Pulmonary Hypertension by Brett Ley, MD There are 3 classes of pulmonary vasodilator drugs: phosphodiesterase-5 inhibitors (PDE-5 inhibitors, e.g. sildenafil, tadalafil), endothelin receptor antagonists (ERAs, e.g. bosentan, ambrisentan), and prostacyclins (epoprostenol, iloprost, treprostinil).  Because the large trials [... read more]

Feb 052013
 
Pulmonary Hypertension Update, Part 1: Classification & Diagnosis (Review)

Pulmonary Hypertension Update/Review Part 1 of 2: Classification and Diagnosis Read Part 2: Treatment of PAH by Brett Ley, MD Pulmonary hypertension (PH) is defined simply as a mean pulmonary artery pressure of 25 mmHg or greater. However, this entity encompasses a heterogeneous group of patients and underlying etiologies where accurate diagnosis, correct physiologic classification, and careful evaluation for [... read more]

Jan 312013
 
Etomidate associated with increased mortality in sepsis: meta-analysis

Etomidate: Unsafe for Intubation in Patients with Sepsis? by Blair Westerly, MD Etomidate is commonly used for rapid sequence intubation; however, even after one dose, it has been associated with adrenal axis suppression in critically ill patients. Though both adrenal insufficiency and increased mortality in sepsis have been associated with etomidate, the relationship of the [... read more]

Jan 182013
 
Come One, Come All – Low tidal volumes improve outcomes

Low Tidal Volumes Improve Outcomes in Non-ARDS Patients Since the landmark ARDSnet trial of low tidal volume ventilation published in the NEJM in 2000, protecting the injured lung with low tidal volumes has been widely adopted. In case you missed it, that trial showed that low tidal volume ventilation (6 ml/kg IBW) improved mortality from [... read more]

Jan 052013
 
Tranexamic acid saves lives, reduces transfusions. So why does no one use it? (Review)

Tranexamic Acid: Underused for Uncontrolled Bleeding? Tranexamic acid is a simple little molecule, just a synthetic derivative of the amino acid lysine. But it’s also a potent pro-hemostatic drug that binds plasminogen and plasmin and stops the degradation of fibrin (the stuff in blood clots). In the U.S., tranexamic acid is sold as Lysteda (oral) [... read more]

Jan 042013
 
Antibiotics (azithromycin) to prevent COPD exacerbations (Review)

(image: Rxhealthdrugs.com) Azithromycin for Prevention of COPD Exacerbations Azithromycin taken daily prevents exacerbations of chronic obstructive pulmonary disease (COPD exacerbations), but seems to also carry risks for cardiovascular death and hearing loss. The true balance of risks and benefits with use of azithromycin to prevent COPD exacerbations is unknown, but physicians who choose to prescribe [... read more]

Jan 042013
 
Femoral lines might not be so bad after all for infection risk

“We’ve got to get that femoral line out of there!” The attending’s face as he says it shadowed with a simmer of fear, a dash of anger. How could the moonlighter have been so incompetent or lazy as to choose the benighted femoral site for a central venous line when the internal jugular and subclavian [... read more]

Jan 032013
 
Can procalcitonin help guide therapy for suspected pneumonia & other infections? (Review)

Procalcitonin to Guide Treatment of Pneumonia (More PulmCCM Topic Reviews) With mounting evidence for its utility as a biomarker for pneumonia, procalcitonin is one of the hottest 2012 topics in pulmonary & critical care. Procalcitonin tends to rise quickly as bacterial infections (but not viral infections) develop, increase with the severity of infection, and decline [... read more]

Dec 302012
 
Azithromycin associated with cardiovascular death

(image: Rxhealthdrugs.com) People taking 5 days of azithromycin had a very small absolute increased risk of death, especially due to cardiovascular causes, compared to people taking amoxicillin, in a retrospective cohort review by Wayne Ray, Katherine Murray, and C. Michael Stein published in the May 17 New England Journal of Medicine. Erythromycin and clarithromycin (the other [... read more]

Dec 282012
 
American Lung Association recommends CT screening for lung cancer

The American Lung Association has become the largest advisory body to recommend lung cancer screening for high-risk people, advising nearly all people aged 55-74 with a 30+ pack-year smoking history (the entry criteria for the National Lung Screening Trial, or NLST) to undergo low-dose CT scanning to detect early lung cancer. The National Comprehensive Cancer Network, [... read more]

Dec 262012
 
New IPF staging and prognosis model announced

(image: Wikipedia) Access the online GAP Score Calculator for IPF Although idiopathic pulmonary fibrosis (IPF) has a poor prognosis — a median survival of only 3 years — there is wide heterogeneity among individual patients. Some have a precipitous decline and die within months of diagnosis; others live for a decade or longer, with little [... read more]

Dec 242012
 
Let's be honest: quitting smoking usually does make you fatter

There’s no use in sugar-coating the truth: Nicotine is an appetite suppressant, and smoking prevents weight gain. Not wanting to gain weight is a common reason why body-obsessed teenage girls say they smoke–and as far as we know, they’re “right:” teens who smoke gain slightly less weight than teens who don’t. It’s also long been believed [... read more]

Dec 232012
 
Blood banks recommend restrictive transfusions in ward patients

The American Association of Blood Blanks (AABB) announced upcoming new guidelines in the March online Annals of Internal Medicine, recommending against transfusion for adults and children with stable illness and hemoglobin levels above 7-8 g/dL. They made it a 1A recommendation (strong recommendation with high quality evidence). Jeffrey Carson et al reviewed literature from 1950 to 2011 and [... read more]

Dec 162012
 
Long-acting beta agonist safety for asthma (Review)

Just How “Dangerous” Are Long-Acting Beta-Agonists, Really? Gustavo Rodriguez and Jose Castro-Rodriguez reviewed 20 systematic reviews and databases reporting on the incidence of adverse events with long-acting beta-agonist (LABA) therapy for asthma, for the April 2012 Thorax. They conclude the following: LABAs as monotherapy significantly increase the risk for adverse effects and bad outcomes from [... read more]