摘要:

The pulmonary artery catheter (PAC) has been in use for more than 30 years. The amount and detail of hemodynamic information provided by the PAC cannot be matched by any other single technology. Whether or not this information makes a difference in the clinical outcomes of critically ill patients is uncertain, however. The Pulmonary Artery Catheter Consensus Conference scrutinized the available research data on the catheter and provided guidelines for clinicians on its use. This article summarizes the controversy and the guidelines available for use of the PAC. It notes the need for further research on patient outcomes.

ISSN:0889-4655    

出版商:OVID    

年代:2001

数据来源: OVID

摘要:

The pulmonary artery catheter provides the opportunity to acquire indirectly important diagnostic and therapeutic information about the function of the two pumping chambers of the heart-the right and left ventricles-during the two phases of the cardiac cycle-systole and diastole. Appropriate use of hemodynamic data acquired via the pulmonary artery catheter requires the accurate measurement, analysis, and interpretation of hemodynamic pressure waveforms.

ISSN:0889-4655    

出版商:OVID    

年代:2001

数据来源: OVID

摘要:

Hemodynamic instability during weaning from mechanical ventilation is one proposed cause of weaning failure. This study evaluated cardiac power output (CPO) as an indicator of significant hemodynamic alteration and cardiac reserve during the transition from controlled mechanical ventilation to spontaneous ventilation using three clinical weaning modes. It also compared CPO with commonly used indicators of hemodynamic instability during weaning. The data suggest that CPO is a sensitive indicator of significant hemodynamic alteration and could be used to optimize cardiovascular function during weaning from mechanical ventilation to increase the likelihood of weaning success.

ISSN:0889-4655    

出版商:OVID    

年代:2001

数据来源: OVID

摘要:

Hypertrophic cardiomyopathy is a primary disease of the cardiac muscle characterized by a hypertrophied and nondilated left ventricle in the absence of other cardiac or systemic disease. The disorder occurs twice as often in men than in women and is relatively more common in young adults. Early treatment of symptoms may improve hemodynamic benefits and prevent complications, including sudden death. This case illustrates various treatment modalities used to manage symptoms and describes the challenges in effectively maintaining hemodynamic stability.

ISSN:0889-4655    

出版商:OVID    

年代:2001

数据来源: OVID

摘要:

Pulmonary artery catheter (PAC) use has led to major advances in the assessment of hemodynamics. Since its introduction three decades ago, features have been added to the PAC to enhance its hemodynamic monitoring capabilities. In addition, newer technologies have been proposed to replace the PAC. This article discusses three features that enhance the PAC-measures of mixed venous oxyhemoglobin, right ventricular ejection fraction, and continuous cardiac output-and two newer technologies-esophageal Doppler and exhaled carbon dioxide measurements. The article describes current and future applications of hemodynamic monitoring.

ISSN:0889-4655    

出版商:OVID    

年代:2001

数据来源: OVID

摘要:

The measurement of the pressure of exhaled carbon dioxide (PetCO2) via capnography has several useful hemodynamic applications. This article discusses integrating PetCO2values with hemodynamic assessment. Capnography can be applied to hemodynamic assessment in three key ways: (1) identification of end-expiration during pulmonary artery and central venous pressure measurements, (2) assessment of pulmonary perfusion and alveolar deadspace, (3) assessment of cardiopulmonary resuscitative efforts. The article presents research, sample waveforms for end-expiration identification, and case examples.

ISSN:0889-4655    

出版商:OVID    

年代:2001

数据来源: OVID

摘要:

Pulmonary artery pressures and arterial pressures are important hemodynamic measurements utilized in clinical management decision making for critically ill patients. Studies have demonstrated a concerning rate of measurement error, often due to technical errors. Zeroing, leveling, and dynamic response testing are essential components of assuring the quality of measurements. This article describes a multilevel approach to assuring the accuracy of measurements. It includes the physics underlying each of these principles, criteria for judging the efficacy of the dynamic response, and clinically applicable methods for measuring the natural frequency and damping coefficient of pressure monitoring systems.

ISSN:0889-4655    

出版商:OVID    

年代:2001

数据来源: OVID

摘要:

Outcome measurement and evidence-based practice are complementary and iterative efforts; both contribute to quality health care. In this article, hemodynamic monitoring is utilized as an example to discuss outcome measurement and evidence-based practice. The use of technology, medications, and other interventions ideally would be based on sound scientific evidence of efficacy and effectiveness in clinical practice. Outcome measurement can contribute to the evidence and strengthen the process of appropriate technology use and evidence-based practice.

ISSN:0889-4655    

出版商:OVID    

年代:2001

数据来源: OVID

ISSN:0889-4655    

出版商:OVID    

年代:2001

数据来源: OVID