Single Beat Determination of Regional Myocardial Strain Measurements in Patients with Atrial Fibrillation

Yamanaka-Funabiki, Kaoru; Onishi, Katsuya; Takao, Masaki; Dohi, Kaoru; M, Ito; Ohte, Nobuyuki; Nakano, Takeshi

doi:10.1016/j.echo.2006.05.026

Cited by 19 publications

(5 citation statements)

References 20 publications

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“…Detailed 2-D, pulsed Doppler and spectral tissue Doppler echocardiography were performed at rest, including on-line analysis of all patients as previously reported (Vivid 7; GE Electronics, Syracuse, USA) (17). LV M-mode measurements of wall thickness and end-diastolic and end-systolic diameters were used for calculating LV fractional shortening and LV ejection fraction.…”

Section: Echocardiographic Measurementsmentioning

confidence: 99%

Patients with a Hypertensive Response to Exercise Have Impaired Left Ventricular Diastolic Function

et al. 2008

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An exaggerated increase in systolic blood pressure prolongs myocardial relaxation and increases left ventricular (LV) chamber stiffness, resulting in an increase in LV filling pressure. We hypothesize that patients with a marked hypertensive response to exercise (HRE) have LV diastolic dysfunction leading to exercise intolerance, even in the absence of resting hypertension. We recruited 129 subjects (age 63 ± 9 years, 64% male) with a preserved ejection fraction and a negative stress test. HRE was evaluated at the end of a 6-min exercise test using the modified Bruce protocol. Patients were categorized into three groups: a group without HRE and without resting hypertension (control group; n =30), a group with HRE but without resting hypertension (HRE group; n =25), and a group with both HRE and resting hypertension (HTN group; n =74). Conventional Doppler and tissue Doppler imaging were performed at rest. After 6-min exercise tests, systolic blood pressure increased in the HRE and HTN groups, compared with the control group (226 ± 17 mmHg, 226 ± 17 mmHg, and 180 ± 15 mmHg, respectively, p <0.001). There were no significant differences in LV ejection fraction, LV end-diastolic diameter, and early mitral inflow velocity among the three groups.However, early diastolic mitral annular velocity (E′) was significantly lower and the ratio of early diastolic mitral inflow velocity (E) to E′ (E/E′) was significantly higher in patients of the HRE and HTN groups compared to controls (E′: 5.9 ± 1.6 cm/s, 5.9 ± 1.7 cm/s, 8.0 ± 1.9 cm/s, respectively, p <0.05). In conclusion, irrespective of the presence of resting hypertension, patients with hypertensive response to exercise had

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Section: Echocardiographic Measurementsmentioning

confidence: 99%

Patients with a Hypertensive Response to Exercise Have Impaired Left Ventricular Diastolic Function

et al. 2008

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“…In the clinical setting, LV diastolic function is mainly evaluated by the transmitral flow See page 1157 velocity pattern using Doppler echocardiography. Evaluation of LV diastolic function is also needed in patients with AF which is extremely challenging because of the lack of atrial systolic transmitral flow wave and the irregularity of Doppler parameters caused by irregular R-R intervals (5)(6)(7).…”

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confidence: 99%

Clinical Utility of Single-Beat E/e′ Obtained by Simultaneous Recording of Flow and Tissue Doppler Velocities in Atrial Fibrillation With Preserved Systolic Function

Kusunose

Yamada

Nishio

et al. 2009

JACC: Cardiovascular Imaging

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The single-beat lateral E/e' correlated with plasma BNP level and PCWP in AF patients with preserved systolic function. In addition, the single-beat lateral E/e' (>or=11) was a good predictor of elevated PCWP (>or=15 mm Hg). Dual Doppler echocardiography offers an advantage of providing the single-beat lateral E/e' correctly even in AF patients, for the evaluation of left ventricular diastolic function.

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“…There was a steeper decrease in normalized FAC as the cycle length decreased to shorter than 500 ms. The possible causes include inadequate RV filling and steep mechanical‐restitution slope of ventricular contractility at short cycle lengths 4,23,34‐36 . Due to the cycle‐length limit, it would at times be infeasible to assess RV FAC by the single‐beat method in patients who have AF with rapid ventricular rates, when two preceding beats with equal cycle lengths longer than 500 ms might be difficult to be found.…”

Section: Discussionmentioning

confidence: 99%

Single‐Beat Determination of Right Ventricular Function in Patients with Atrial Fibrillation

et al. 2010

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Single Beat Determination of Regional Myocardial Strain Measurements in Patients with Atrial Fibrillation

Cited by 19 publications

References 20 publications

Patients with a Hypertensive Response to Exercise Have Impaired Left Ventricular Diastolic Function

Patients with a Hypertensive Response to Exercise Have Impaired Left Ventricular Diastolic Function

Clinical Utility of Single-Beat E/e′ Obtained by Simultaneous Recording of Flow and Tissue Doppler Velocities in Atrial Fibrillation With Preserved Systolic Function

Single‐Beat Determination of Right Ventricular Function in Patients with Atrial Fibrillation

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