What question did this study set out to answer?

To examine the detailed contour and timing relationships between the left ventricular pressure pulse and the ascending aortic pulse during early ventricular ejection.

August 1, 1960American Journal of Physiology-Legacy Content

Unexplained features of the left ventricular pressure pulse

View Full Paper

Ask AI

Bookmark

Authors

JRJ. W. RemingtonMayo Clinic

Discussion

Member takes

Implication

Indicates brief LV-aortic gradient at ejection onset in dogs; extends classic physiology but leaves open human translation.

Key Points

To examine the detailed contour and timing relationships between the left ventricular pressure pulse and the ascending aortic pulse during early ventricular ejection.
Simultaneously recorded high-fidelity left ventricular and ascending/descending aortic pressure pulses in canine models.
Analyzed the timing intervals between ventricular pressure attainment of aortic diastolic pressure and the initiation of the aortic pressure wave.
Detected a consistent ~5 msec lag between ventricular pressure reaching the aortic diastolic level and the onset of the aortic pulse wave.
Demonstrated that the aortic pulse initiation coincides with an inflection on the ventricular pressure upstroke, showing negligible transmission delay in the initial ascending aorta but distinct delay in the descending aorta.
Showed that the incisura undergoes propagation delay immediately from the aortic root, whereas initial aortic wave steepness does not directly correspond to ventricular pressure slopes.

Cite This Study

J. W. Remington (1960) studied this question.

synapsesocial.com/papers/6a7875d43da069e66cbe0af2 https://doi.org/10.1152/ajplegacy.1960.199.2.328

View Full Paper

Ask AI

Bookmark

Unexplained features of the left ventricular pressure pulse

Discussion

Member takes

Implication

Key Points

Cite This Study

Unexplained features of the left ventricular pressure pulse

Discussion

Member takes

Implication

Key Points

Cite This Study

Also Consider

Also Consider