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Atrial interaction ...
Atrial interaction in the form of 'cross talk' in patients with ventricular outflow tract obstruction.
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- Henein, Mark (author)
- Umeå universitet,Kardiologi
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Lam, Yat-Yin (author)
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- Waldenstöm, Anders (author)
- Umeå universitet,Kardiologi
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- Henein, Michael Y (author)
- Umeå universitet,Kardiologi
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(creator_code:org_t)
- Elsevier BV, 2011
- 2011
- English.
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In: International Journal of Cardiology. - : Elsevier BV. - 0167-5273 .- 1874-1754. ; 17:147(3), s. 388-392
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- BACKGROUND: The Bernheim 'a' wave in the jugular venous pulse of patients with left ventricular hypertrophy has been shown to reflect accentuated right atrial activity. OBJECTIVE: To study possible atrial interaction in patients with right and left ventricular outflow tract obstruction due to significant pulmonary (PS) and aortic valvular stenosis (AS) respectively. METHODS: We studied 41 PS patients (age 36+/-10 year) and 41 AS patients (age 35+/-12 year) and their results were compared with those of 27 controls (age 30+/-7 year). RV and LV filling were recorded by conventional PW Doppler. Biventricular segmental function was studied using the PW tissue Doppler imaging (TDI) and M-mode techniques. RESULTS: The 2 patient groups had similar degree of ventricular outflow tract obstruction. Long axis function was impaired while global systolic function was preserved in the pressure-overloaded ventricle. Patients had higher peak late filling (A wave) and TDI late diastolic (Aa) velocities recorded in the disease-free ventricles despite having similar peak early filling velocities (E wave), E wave deceleration time and E/Ea ratios were not different from controls (p>0.05 for all). Such accentuation of atrial activity (A wave) was moderately correlated with the degree of contralateral ventricular outflow tract obstruction (p<0.001 for both). CONCLUSIONS: Long axis function is more sensitive than global function in revealing myocardial dysfunction in the pressure-overloaded ventricles. The increased contralateral atrial systolic activity suggests an evidence for atrial interaction in the form of 'cross talk'.
Keyword
- Aortic stenosis
- Pulmonary stenosis
- Atrial cross talk
- MEDICINE
- MEDICIN
Publication and Content Type
- ref (subject category)
- art (subject category)
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