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[Changes in pulmonary blood flow during surgery in the lateral position; a computer-scanning study (author's transl)]
Praktische Anasthesie, Wiederbelebung Und Intensivtherapie
|August 1, 1978
Summary
The lateral position during surgery increases blood flow to the lower lung by 17% in patients undergoing urological procedures. This effect is more pronounced in younger individuals and impacts lung ventilation.
Area of Science:
- Physiology
- Medical Imaging
Context:
- Surgical positioning can significantly alter physiological parameters.
- Understanding these changes is crucial for patient safety and outcomes.
Purpose:
- To investigate the effects of the lateral decubitus position on pulmonary blood flow and ventilation.
- To quantify the redistribution of pulmonary perfusion during surgery.
Summary:
- Thirty patients undergoing urological operations were studied using 99mTc microspheres and a scanning camera system.
- The lateral position resulted in a 17% average increase in blood flow to the undermost lung.
- This redistribution was more significant in younger patients and was accompanied by reduced ventilation in the lower lung, with circulation returning to normal post-position change.
Impact:
- Highlights the physiological impact of surgical positioning on pulmonary circulation.
- Suggests potential implications for gas exchange and patient recovery.
- Provides quantitative data on blood flow redistribution in the lateral position.