What question did this study set out to answer?

To compare changes in left ventricular end-diastolic area and intrathoracic blood volume against concomitant changes in stroke volume index during positional alterations.

October 1, 2001European Journal of Anaesthesiology

Assessment of cardiac preload by indicator dilution and transoesophageal echocardiography

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Why the study?

Are intrathoracic blood volume and end-diastolic area equivalent indices of cardiac preload in anaesthetized patients?

Population

10 anaesthetized patients

Design

Other

Authors

WBWolfgang BühreUniversity of Copenhagen KBK. BuhreUniversitätsmedizin Göttingen SKS. KazmaierUniversity of Göttingen

Discussion

Member takes

Implication

May support equivalence as preload indices in anaesthetized patients; leaves open outcome validation before clinical adoption.

Key Points

To compare changes in left ventricular end-diastolic area and intrathoracic blood volume against concomitant changes in stroke volume index during positional alterations.
Investigated hemodynamic changes induced by body position alteration in 10 anesthetized patients.
Evaluated left ventricular end-diastolic area via transesophageal echocardiography and intrathoracic blood volume via indicator dilution alongside stroke volume index.
Positional change induced reductions in intrathoracic blood volume of 18 ± 11%, end-diastolic area of 27 ± 13%, and stroke volume index of 19 ± 11%.
Stroke volume index correlated closely with both intrathoracic blood volume (r = 0.75) and left ventricular end-diastolic area (r = 0.76).

Structured PICO

Are intrathoracic blood volume and end-diastolic area equivalent indices of cardiac preload in anaesthetized patients?

Population

10 anaesthetized patients

Intervention

Change in body position

Outcome

Relationship between induced changes in end-diastolic area and intrathoracic blood volume and concomitant changes in stroke volume indexsurrogate

Intrathoracic blood volume derived by indicator dilution and left ventricular end-diastolic area determined by transoesophageal echocardiography are equivalent indices of cardiac preload.

Cite This Study

Bühre et al. (2001) studied this question.

synapsesocial.com/papers/6a7071c48031ec7bb1dc5836 https://doi.org/10.1046/j.1365-2346.2001.00901.x

View Full Paper

Ask AI

Bookmark

Assessment of cardiac preload by indicator dilution and transoesophageal echocardiography

Discussion

Member takes

Implication

Key Points

Structured PICO

Cite This Study

Assessment of cardiac preload by indicator dilution and transoesophageal echocardiography

Discussion

Member takes

Implication

Key Points

Structured PICO

Cite This Study

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