Book contents
- Capnography
- Capnography
- Copyright page
- Contents
- Contributors
- Preface
- Commonly used abbreviations
- 1 Clinical perspectives
- 1 Ventilation
- 2 Ventilation Capnography and respiratory assessment outside of the operating room
- 3 Airway management in the out-of-hospital setting
- 4 Airway management in the hospital setting
- 5 Airway management in the operating room
- 6 Capnography during anesthesia
- 7 Monitoring during mechanical ventilation
- 8 Capnography during transport of patients (inter/intrahospital)
- 9 Capnography as a guide to ventilation in the field
- 10 Neonatal monitoring
- 11 Capnography in sleep medicine
- 12 Conscious sedation
- 13 Capnometry monitoring in high- and low-pressure environments
- 14 Biofeedback
- 15 Capnography in non-invasive positive pressure ventilation
- 16 End-tidal carbon dioxide monitoring in postoperative ventilator weaning
- 17 Optimizing the use of mechanical ventilation and minimizing its requirement with capnography
- 18 Volumetric capnography for monitoring lung recruitment and PEEP titration
- 19 Capnography and adjuncts of mechanical ventilation
- 20 Cardiopulmonary resuscitation
- 21 Capnography and pulmonary embolism
- 22 Non-invasive cardiac output via pulmonary blood flow
- 23 PaCO2, PetCO2, and gradient
- 24 The physiologic basis for capnometric monitoring in shock
- 25 Carbon dioxide production, metabolism, and anesthesia
- 26 Tissue- and organ-specific effects of carbon dioxide
- 27 Atmospheric monitoring outside the healthcare environment and within enclosed environments: a historical perspective
- 28 Capnography in veterinary medicine
- 29 Carbon dioxide pathophysiology
- 30 Acid–base balance and diagnosis of disorders
- 31 Ventilation/perfusion abnormalities and capnography
- 32 Capnographic measures
- 33 Improving the analysis of volumetric capnograms
- 34 Capnography and the single-path model applied to cardiac output recovery and airway structure and function
- 35 Carbon dioxide and the control of breathing: a quantitative approach
- 36 Technical specifications and standards
- 37 Carbon dioxide measurement
- 38 Gas flow measurement
- 39 Combining flow and carbon dioxide
- 40 Brief history of time and volumetric capnography
- 41 The first years of clinical capnography
- 42 The early days of volumetric capnography
- Appendix: Patterns of time-based capnograms
- Index
22 - Non-invasive cardiac output via pulmonary blood flow
from 1 - Ventilation
Published online by Cambridge University Press: 05 August 2011
Book contents
- Capnography
- Capnography
- Copyright page
- Contents
- Contributors
- Preface
- Commonly used abbreviations
- 1 Clinical perspectives
- 1 Ventilation
- 2 Ventilation Capnography and respiratory assessment outside of the operating room
- 3 Airway management in the out-of-hospital setting
- 4 Airway management in the hospital setting
- 5 Airway management in the operating room
- 6 Capnography during anesthesia
- 7 Monitoring during mechanical ventilation
- 8 Capnography during transport of patients (inter/intrahospital)
- 9 Capnography as a guide to ventilation in the field
- 10 Neonatal monitoring
- 11 Capnography in sleep medicine
- 12 Conscious sedation
- 13 Capnometry monitoring in high- and low-pressure environments
- 14 Biofeedback
- 15 Capnography in non-invasive positive pressure ventilation
- 16 End-tidal carbon dioxide monitoring in postoperative ventilator weaning
- 17 Optimizing the use of mechanical ventilation and minimizing its requirement with capnography
- 18 Volumetric capnography for monitoring lung recruitment and PEEP titration
- 19 Capnography and adjuncts of mechanical ventilation
- 20 Cardiopulmonary resuscitation
- 21 Capnography and pulmonary embolism
- 22 Non-invasive cardiac output via pulmonary blood flow
- 23 PaCO2, PetCO2, and gradient
- 24 The physiologic basis for capnometric monitoring in shock
- 25 Carbon dioxide production, metabolism, and anesthesia
- 26 Tissue- and organ-specific effects of carbon dioxide
- 27 Atmospheric monitoring outside the healthcare environment and within enclosed environments: a historical perspective
- 28 Capnography in veterinary medicine
- 29 Carbon dioxide pathophysiology
- 30 Acid–base balance and diagnosis of disorders
- 31 Ventilation/perfusion abnormalities and capnography
- 32 Capnographic measures
- 33 Improving the analysis of volumetric capnograms
- 34 Capnography and the single-path model applied to cardiac output recovery and airway structure and function
- 35 Carbon dioxide and the control of breathing: a quantitative approach
- 36 Technical specifications and standards
- 37 Carbon dioxide measurement
- 38 Gas flow measurement
- 39 Combining flow and carbon dioxide
- 40 Brief history of time and volumetric capnography
- 41 The first years of clinical capnography
- 42 The early days of volumetric capnography
- Appendix: Patterns of time-based capnograms
- Index
Summary
This chapter reviews the background and theory of complete and partial CO2 rebreathing Fick cardiac output (QT) measurement, the literature on clinical testing, and presents examples that demonstrate its utility during acute hemodynamic challenges. The classic Fick principle was designed to measure pulmonary capillary blood flow (QC), which comprises 98% of QT in subjects with little or no intrapulmonary or cardiac shunting. Clinical experience has repeatedly demonstrated that severe acute reduction in pulmonary blood flow during constant ventilation, e.g. due to ventricular fibrillation, is accompanied by a major PETCO2 reduction. The most critical need for continuous QT measurements is seen in patients with hemodynamic instability. Clinical experience with non-invasive cardiac output monitoring has also provided readily recognizable hemodynamic profiles of vasodilation, hypovolemia, sepsis, and acute heart failure. Continuous non-invasive QT monitoring can provide critical cardiovascular information during everyday clinical practice.
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- Capnography , pp. 208 - 224Publisher: Cambridge University PressPrint publication year: 2011