Assessment of Systolic Ejection Time as a Hemodynamic Marker of Incipient Bradycardic Vasovagal Syncope. A Pilot Study

Fucà, Giuseppe; Dinelli, Maurizio; Gianfranchi, Lorella; Bressan, Sabrina; Corbucci, Giorgio; Alboni, Paoló

doi:10.1111/j.1540-8159.2011.03094.x

Cited by 3 publications

(2 citation statements)

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“…In this study, IVRT had a moderately strong correlation with Em and a moderate correlation with E/Em. The ET normalized to the cardiac cycle may be a hemodynamic marker of the decrease in LV during bradycardic presyncope in patients undergoing HUTT [15]. The duration of ET reflects both the velocity and extent of fiber shortening.…”

Section: Discussionmentioning

confidence: 99%

Myocardial Performance Index in Neurocardiogenic Syncope Patients

et al. 2014

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BackgroundMany syncopes resulting from neural reflexes in various conditions are called neurocardiogenic syncope (NCS). We aimed to investigate the presence of left ventricular (LV) myocardial performance index (MPI) in patients with NCS, which was diagnosed with head-up tilt table test (HUTT), and the accurateness of the test in order to use it as a method in patients with NCS. Assuming the MPI as a potential cause of syncope, we assessed the Tei index with non-invasive tissue Doppler echocardiography method.MethodsConsecutive outpatients with a history of recurrent unexplained syncope underwent HUTT. Twenty-nine HUTT (+) patients (24 female and five male, mean age: 30 ± 15 years) as the study group and HUTT (-) 23 healthy patients (six female and 17 male, mean age: 34 ± 16 years) as the control group were included into the study. Conventional and tissue Doppler echocardiography was performed to both groups. The MPI was determined by using PW Doppler. Measurements of Doppler time intervals, according to Tei index ((isovolumic contraction time + isovolumic relaxation time)/ejection time) is calculated as (a - b/b), where “a” is the interval between cessation and onset of the mitral inflow, and “b” is the ejection time (ET) at the LV outflow.ResultsWhen comparing the groups in terms of MPI and ET, there was significant difference between groups. Patients with NCS had significantly longer ET and lower MPI value than control group (284 ± 24 ms vs. 260 ± 24 ms, P < 0.001, respectively and 0.44 ± 0.7 vs. 0.52 ± 0.8, P < 0.001, respectively). There was no significant difference in ejection fraction between groups.ConclusionIn the present study, LV MPI value decreases in patients with NCS.

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Section: Discussionmentioning

confidence: 99%

Myocardial Performance Index in Neurocardiogenic Syncope Patients

et al. 2014

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“…Both of these techniques are currently being evaluated in alarm devices to warn individuals of impending syncopal episodes. [124][125][126]…”

Section: Emerging Techniques In Evaluation and Treatmentmentioning

confidence: 99%

Syncope

Ray

Kusumoto

Goldschlager

2014

J Intensive Care Med

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Syncope is common representing approximately 3% of ED visits and up to 6% of hospital admissions, with a cost close to 2 billion dollars per year. Diagnostic testing is often poorly sensitive and evaluations commonly lack a standardized approach. A mindful and systematic approach can increase sensitivity and improve diagnostic accuracy. A thorough history and physical exam is paramount, as conclusions drawn from the history and exam will guide further assessment. Developing a strategy for the first and, if necessary, subsequent tests will improve the accuracy of identifying the etiology of syncope and reduce cost. Although syncope has a favorable prognosis, identification of patients with structural heart disease is critical, as these patients are at greatest risk for mortality. Several risk scoring systems have been developed to help separate high risk from low risk patients.

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Changes of Pre Ejection Period and Left Ventricular Ejection Time during Head up Tilt

Hamdany

2015

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Assessment of Systolic Ejection Time as a Hemodynamic Marker of Incipient Bradycardic Vasovagal Syncope. A Pilot Study

Abstract: The combined trends in HR and ET% may provide a marker of incipient bradycardic VVS in the majority of patients.

Cited by 3 publications

References 23 publications

Myocardial Performance Index in Neurocardiogenic Syncope Patients

Myocardial Performance Index in Neurocardiogenic Syncope Patients

Syncope

Changes of Pre Ejection Period and Left Ventricular Ejection Time during Head up Tilt

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