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. 1970 Sep;32(5):696–700. doi: 10.1136/hrt.32.5.696

Phasic aortic flow velocity in patients with pulsus alternans1

A Benchimol 1, Egeu C Barreto 1, Stephen Teng Wei Tio 1
PMCID: PMC487394  PMID: 5470053

Abstract

Phasic aortic flow velocity was recorded in two patients with pulsus alternans using a flow velocity probe connected to a Doppler ultrasonic flowmeter system. The variations in beat-to-beat peak velocity paralleled the variations in arterial and ventricular systolic pressures. This study provides direct evidence that stroke volume varies during this abnormal haemodynamic status. It is conceivable, though not proved in this study, that this phenomenon may be secondary to alternation between large and small end-diastolic fibre length.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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