Review Articles Archives - PulmCCM
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May 012016
 
ICU Physiology in 1,000 Words: ARDS - Part 2

Jon-Emile S. Kenny [@heart_lung] Gattinoni and Quintel have, very recently, outlined their approach to managing the acute respiratory distress syndrome [ARDS] [1].  They argue that treatment of ARDS should minimize firstly, the mechanical power applied to the lungs – as described in part 1.  Secondly, Gattinoni and Quintel note that, in the treatment of ARDS, [… read more]

Mar 182016
 
The Physiologically Difficult Airway – Part 2

In part 2, I continue my commentary on this excellent review; part 1 may be found here.  In this post I will consider patients with severe metabolic acidosis and those with right ventricular [RV] dysfunction and/or failure. Severe Metabolic Acidosis In patients with severe metabolic acidosis, alveolar ventilation tends to be maximal as a compensatory mechanism.  [… read more]

Mar 112016
 
The Physiologically Difficult Airway – Part 1

To celebrate the birthday of Dr. Erin Hennessey [@ErinH_MD] – my former co-fellow and current Stanford intensivist-anesthesiologist – I will interpret a relatively recent and terrifically high-yield overview of physiologically challenging intubations.  In this must-read survey, the authors highlight particularly troublesome intubations not from the classic, anatomical perspective, but from the standpoint of the – [… read more]

Mar 012016
 
An Expected or Maladaptive Response to Infection?  Sepsis Reconsidered

“A man may take to drink because he feels himself to be a failure, and then fail all the more completely because he drinks … English … becomes ugly and inaccurate because our thoughts are foolish, but the slovenliness of our language makes it easier for us to have foolish thoughts.” George Orwell reminds us [… read more]

Feb 132016
 
ICU Physiology in 1000 Words: Driving Pressure & Stress Index

By Jon-Emile S. Kenny [@heart_lung] The problem with the lung in the acute respiratory distress syndrome [ARDS] is not that it is stiff, but rather, that it is small [1].  In the 1980s, CT scans of the lungs of patients with ARDS revealed that the functional lung was attenuated in size and that dependent densities [… read more]

Jan 172016
 
Review: Lactate & Sepsis

On this snowy, Stockholm Sunday, I look out from my quarters on the Mälardrottningen across the still, icy waters and I think about a cirrhotic patient for whom I recently cared.  She presented with significant dyspnea as she had stopped taking her diuretics.  Instead, she was using excessive doses of her friend’s albuterol inhaler to treat [… read more]

Aug 012015
 

ICU Physiology in 1000 Words Veno-Arterial Extra-Corporeal Membrane Oxygenation (VA-ECMO) Jon-Emile S. Kenny M.D. [@heart_lung] Perhaps the most memorable patient of both my pulmonary and critical care fellowships was that of a very young woman who suffered from propofol-related infusion syndrome [PRIS]. As a consequence of PRIS, she endured multiple cardiac arrests and was placed [… read more]

May 172015
 
The only VAP prevention method that saves lives is the one you’re not using

There’s always been doubt about the efficacy of the numerous “ventilator bundles” hospitals use to prevent ventilator-associated pneumonia (VAP). A provocative new analysis concludes that none of these methods save lives — except the one that almost no ICUs are using today. Healthcare associated pneumonias (HAP), especially ventilator-associated pneumonias (VAP), are associated with increased mortality, excess antibiotic use, lengthened hospital [… read more]

May 062015
 
Is more than one patient per ICU nurse dangerous?

The fewer patients an ICU nurse has to juggle, the better those patients’ chances of making it out of the hospital alive, according to a large observational study published in Critical Care Medicine. Data from the large EPIC II study suggested that two patients per nurse may be too many for safe, high-quality critical care. Nurse-to-patient [… read more]

Mar 282015
 
Surviving Sepsis Says EGDT Not Needed in All Patients with Septic Shock

As regular PulmCCM readers know, the ProCESS, ARISE and ProMISe randomized trials showed no benefit of protocolized early goal-directed therapy as compared to usual conscientious care in the treatment of severe sepsis and septic shock. In response to ProCESS and ARISE, the influential Surviving Sepsis Campaign now advises that measurement of central venous pressure (CVP) and [… read more]

Mar 192015
 
ICU Physiology in 1,000 Words: The Right Ventricular Afterload (Part 2 of 2)

ICU Physiology in 1000 Words The Right Ventricular Afterload [Part 2 of 2] Jon-Emile S. Kenny M.D. [@heart_lung] Having considered the short-comings of Laplace’s Law and the PVR with respect to the RV afterload in part 1, we will now turn to each of the following in turn: the pulmonary arterial input impedance, a measureable [… read more]

Mar 152015
 
How safe is thoracentesis? Giant case series sheds light

Thoracentesis for pleural effusion — that is, inserting a long needle between someone’s ribs to drain a fluid collection from the chest — has always come with a scary menu of potential risks, including pneumothorax, hemothorax and pulmonary edema. A new study reports a low complication rate from thousands of thoracenteses. But debate will remain whether the safety results — achieved [… read more]

Mar 132015
 
ICU Physiology in 1,000 Words: Right Ventricular Afterload (Part 1 of 2)

ICU Physiology in 1,000 Words: The Right Ventricular Afterload (Part 1 of 2) By Jon-Emile S. Kenny M.D. With my trusted-resident – Dr. Lina Miyakawa – at my side we watched as our patient could not maintain his oxygen saturation above 82%. The patient had terrible aspiration pneumonia superimposed upon horrendous methamphetamine-related pulmonary arterial hypertension [… read more]

Mar 052015
 
E-cigarettes double smokers' quit rates vs placebo: meta-analysis

Electronic cigarettes containing nicotine can double smokers’ rates of quitting at one year, compared to e-cigarettes without nicotine (placebo), according to a new small meta-analysis published in the Cochrane Database of Systematic Reviews. The rates of smoking cessation using nicotine-containing e-cigarettes (9%) were roughly comparable to that seen with other forms of nicotine replacement therapy in past trials. The [… read more]

Feb 132015
 
The PulmCCM App Re-Re-Launches, Again

Longtime readers of PulmCCM will remember, there once was an app for iPhone and Android phones. Then, one day, there wasn’t. Technical difficulties, etc. Then, just when everyone had almost forgotten about it, the app was back! Most people had moved on with their lives, but a few were touched by this digital comeback story. Then — [… read more]

Feb 012015
 
PulmCCM Journal Vol. 1, Issue 2 Now Available

On behalf of the PulmCCM Journal editorial board, it is with great pleasure that I announce the publication of the second issue of PulmCCM Journal, an open-access, peer-reviewed journal in pulmonary and critical care medicine. You can read the new issue online at pulmccm.org/journal, or click “Journal” in the menu bar above. PulmCCM Journal’s mission is to [… read more]

Feb 012015
 
ICU Physiology in 1,000 Words: Cardiopulmonary Resuscitation

Cardiopulmonary Resuscitation by Jon-Emile S. Kenny, MD The first time I performed cardiopulmonary resuscitation [CPR] on a patient was in the emergency department of Sunnybrook Hospital in Toronto, Canada; it was certainly an indelible moment in my training. As an intern, and especially as medical consult at Bellevue Hospital in New York City, I was [… read more]

Jan 052015
 

Here are some of the biggest stories and most important published research findings in critical care and respiratory medicine for 2014. Enjoy, and subscribe to the PulmCCM weekly email newsletter to stay up to date in pulmonary and critical care. Early goal directed therapy does not improve outcomes in septic shock (ProCESS) Are traditional protocols [… read more]