Duke Orthopaedics
presents
Wheeless' Textbook of Orthopaedics
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Pulmonary Artery Catheter: Swan Ganz Catheters
Afterload
Cardiac Output
Catheter Description
Central Lines
Central Venous Pressure
Heart Rate
Indications
Interpretation
Internal Jugular Veins
Mixed Venous O2
Preload
Respiratory Failure
Subclavian Vein Approach
Systemic Vascular Resistance
Technique
Wave patterns
Wedge Pressure
CaO2 = (1.34)(Hgb)(SaO2) + (0.0031)(PaO2)
CvO2 = (1.34)(Hgb)(SvO2) + (00.031)(PvO2)
Oxygen Delivery = Q * CaO2;
Oxygen Delivery = Hgb (g/dl) * % O2 Sat * (1.39 *
CO
)
- transfusion will increase hemoglobin;
- inotropes will increase
CO
- oxygen will increase O2 Sat
- correction of alkalosis and hypothermia will shift the dissociation curve to the right
Oxygen consumption = Q * (CaO2 - CvO2)
An evaluation of triple-lumen catheter infections using a guidewire
exchange technique.
A Randomized, Controlled Trial of the Use of Pulmonary-Artery Catheters in High-Risk Surgical Patients
Original Text by Clifford R. Wheeless, III, MD.
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