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Cardiovascular Rounds

News, resources, and analysis from the Cardiovascular Roundtable

Filtered by: June 2010 Hide

JAMA: Too Much Oxygen for Cardiac Arrest Patients May be Fatal

June 7, 2010

As reported in the Daily Briefing, cardiac arrest patients who are exposed to high concentrations of pure oxygen have higher in-hospital mortality than patients who receive too little oxygen, a new study in JAMA finds.

For the study, researchers from Cooper University Hospital in New Jersey examined 6,326 cardiac arrest patients treated in ICUs at 120 hospitals between 2001 and 2005. The researchers then divided the participants into three groups: hyperoxia (defined as partial arterial oxygen pressure of 300 millimeters), hypoxia (defined as partial arterial oxygen pressure of less than 60 millimeters) and normoxia (defined as neither hyperoxia nor hypoxia). Across the four-year study, 18% of patients studied were hyperoxic, 63% were hypoxic and 19% were normoxic.

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Pulmonary Artery Sensor Guides HF Medications, Reduces Hospitalizations

June 4, 2010

Results from a randomized multi-center trial indicate that implantation of pulmonary-artery (PA) pressure sensor in advanced heart failure patients can help optimize medication management and reduce heart failure hospital admissions. The sensor, developed by CardioMEMS, is 15mm in length and 3.5 mm wide, and is positioned within the pulmonary artery at right-heart catheterization.

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JAMA: Shorter LOS Increases HF Readmissions, Mortality

June 2, 2010

As reported in the Daily Briefing, although the average length of stay (LOS) and in-hospital mortality rates among Medicare heart failure (HF) patients have decreased, a study in JAMA finds that post-discharge mortality rates and 30-day readmission rates have increased, suggesting a need to re-examine hospital discharge practices.

For the study, researchers examined nearly seven million HF hospitalizations among Medicare patients between 1993 and 2006 and found that while there was an improvement in care for these patients, quality of care post-discharge declined. Specifically, the researchers determined that LOS decreased from 8.81 days in 1993 to 6.33 days in 2006, and that in-hospital mortality dropped from 8.5% to 4.3%. Additionally, 30-day all-cause mortality declined from 12.8% to 10.7% across the study.

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