Mixed Venous to Arterial Carbon Dioxide Gap Is Not a Useful Test to Identify Low Cardiac Output: A Retrospective Analysis of 1412 Patients with Pulmonary Artery Catheters in a Cardiothoracic Intensive Care Unit

2019 ◽  
Author(s):  
A. Rosenberg ◽  
A. Ragavan ◽  
T.C. Aw ◽  
E. Galliatsou
Keyword(s):  
Carbon Dioxide ◽  
Intensive Care Unit ◽  
Cardiac Output ◽  
Intensive Care ◽  
Pulmonary Artery ◽  
Retrospective Analysis ◽  
Low Cardiac Output ◽  
Arterial Carbon Dioxide ◽  
Pulmonary Artery Catheters ◽  
Mixed Venous

Hemodynamics in Sepsis

2006 ◽  
Vol 17 (4) ◽  
pp. 435-445
Author(s):  
Tom Ahrens
Keyword(s):  
Intensive Care Unit ◽  
Cardiac Output ◽  
Tissue Oxygenation ◽  
Capillary Flow ◽  
Timely Manner ◽  
Central Venous ◽  
Low Cardiac Output ◽  
High Cardiac Output ◽  
Hemodynamic State ◽  
Mixed Venous

Hemodynamics in sepsis change as sepsis develops. Initial hemodynamics of sepsis often are much different from later stages of sepsis, shifting from low cardiac output states to high cardiac output states. Tissue oxygenation also changes with initial mixed venous oxyhemoglobin (Svo2) or central venous oxyhemoglobin (Scvo2) levels below normal, with later stages reflecting high values. These changes occur as sepsis progresses, producing a marked disturbance in capillary flow and tissue oxygenation. Treatments for these changes in sepsis are different, making the identification of the hemodynamic state essential to optimally treat the patient. Fortunately, hemodynamic monitoring techniques are markedly improved from older techniques such as the pulmonary artery catheter. With noninvasive techniques such as esophageal and external Doppler for measuring hemodynamics, clinicians beyond the intensive care unit can make hemodynamic assessments that were not possible until just recently. This improved assessment should make it much easier to properly identify sepsis and initiate appropriate treatments in a timely manner.

Comparison between replacement at 4 days and 7 days of the infection rate for pulmonary artery catheters in an intensive care unit*

2003 ◽  
Vol 31 (5) ◽  
pp. 1353-1358 ◽  
Author(s):  
Yin-Yin Chen ◽  
David Hung-Tsang Yen ◽  
Yang-Guang Yang ◽  
Cheng-Yi Liu ◽  
Fu-Der Wang ◽  
...  
Keyword(s):  
Intensive Care Unit ◽  
Intensive Care ◽  
Pulmonary Artery ◽  
Infection Rate ◽  
Pulmonary Artery Catheters
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