A critical review of the systolic time intervals.

Lewis, R P; Rittogers, S E; Froester, W F; Boudoulas, H

doi:10.1161/01.cir.56.2.146

Cited by 624Cardiovascular Function and Risk FactorsHemodynamic Monitoring and TherapyCardiovascular Health and Disease Prevention

A critical review of the systolic time intervals.

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Lewis, R P, Rittogers, S E, Froester, W F, Boudoulas, H·1977·Circulation

DOI 10.1161/01.cir.56.2.146

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Abstract

The theoretical basis for the use of the systolic time intervals has been largely established. The method has been validated by direct measures from within the circulatory system. Standards for equipment and technique have been defined. Numerous clinical studies have demonstrated the value of this quantitative noninvasive technique for assessing left ventricular performance. At present there is need for further studies of the clinical usefulness of the systolic time intervals to improve both diagnosis and therapy of various cardiovascular disorders.

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PEP provides insight into myocardial contractility as an increase in contractility results in a sharper increase in left ventricular pressure thereby shortening the PEP.
“PEP provides insight into myocardial contractility as an increase in contractility results in a sharper increase in left ventricular (LV) pressure thereby shortening the PEP.”
From A Chest‐Conformable, Wireless Electro‐Mechanical E‐Tattoo for Measuring Multiple Cardiac Time Intervals (2023) · cites this paper as [11]

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Self-citation

Authors: Lewis, R. P., Rittogers, S. E., Froester, W. F., & Boudoulas, H.
ORCID: Lewis, R P
Venue: Circulation
Publisher: Ovid Technologies (Wolters Kluwer Health)
Published: 1977-08
Volume: 56
Issue: 2
Pages: 146-158
ISSN: 0009-7322 (ISSN-L)
1524-4539
DOI: 10.1161/01.cir.56.2.146
OpenAlex: W1965634011
Cited by: 624
References: 68
Citations by year: 2026: 6 · 2025: 10 · 2024: 5 · 2023: 15 · 2022: 11 · 2021: 14 · 2020: 9 · 2019: 12 · 2018: 15 · 2017: 20 · 2016: 21 · 2015: 16 · 2014: 5 · 2013: 16 · 2012: 9
FWCI: 22.96
Type: journal article
Language: en
Open access: bronze
doi.org
Locations: Circulation (publishedVersion)
PubMed (publishedVersion)
Circulation
Topics: Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Cardiovascular Function and Risk Factors
Health Sciences › Medicine › Surgery › Hemodynamic Monitoring and Therapy
Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Cardiovascular Health and Disease Prevention
Keywords: systolic time intervals, left ventricular function, noninvasive cardiac assessment, cardiovascular disease
MeSH terms: Aorta, Aortic Valve Stenosis, Arrhythmias, Cardiac, Atrial Fibrillation, Carotid Artery, External, Coronary Disease, Electrocardiography, Heart Diseases, Heart Failure, Heart Function Tests, Heart Ventricles, Humans, Mitral Valve Stenosis, Myocardial Infarction, Phonocardiography, Pulse, Transducers

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A critical review of the systolic time intervals.

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