Related Experiment Videos
[Right ventricular function evaluated by thermodilution method in patients with chronic pulmonary diseases]
T Nakashima1, T Imamura, M Shikuwa
1Second Department of Internal Medicine, Nagasaki University School of Medicine, Japan.
Nihon Kyobu Shikkan Gakkai Zasshi
|January 1, 1991
Summary
A new thermodilution (TD) method accurately measures right ventricular ejection fraction (RVEF) and volumes (RVV). This TD method is valuable for assessing right ventricular function in chronic pulmonary diseases (CPD).
Area of Science:
- Cardiology
- Pulmonology
- Medical Imaging
Context:
- Right ventricular ejection fraction (RVEF) assesses systolic function.
- A novel rapid-response thermodilution (TD) pulmonary artery catheter measures RVEF and stroke volume (SV).
- Assessing RVEF and right ventricular volumes (RVV) in chronic pulmonary diseases (CPD) is crucial.
Purpose:
- To evaluate the validity of the new TD method for measuring RVEF and RVV.
- To compare TD-derived RVEF with the Kr81m perfusion method.
- To correlate RVEF and RVV with pulmonary hemodynamics in CPD patients.
Summary:
- The TD method demonstrated good correlation with the Kr81m perfusion method for RVEF (r = 0.71, p < 0.001).
- CPD patients with pulmonary hypertension or high pulmonary vascular resistance showed a tendency towards low RVEF and increased RVV.
- The right ventricle in CPD patients appeared unable to adapt to increased afterload.
Impact:
- The TD method is a valuable tool for assessing right ventricular function in patients with CPD.
- This technique aids in understanding the impact of pulmonary hypertension on the right ventricle.
- Improved assessment of RV function can lead to better management strategies for CPD.