Paradoxical doppler echocardiographic parameters during recovery of left atrial contractility after spontaneous conversion from paroxysmal atrial fibrillation to sinus rhythm
| Autor: | Gregory W. Ruhnke, Daisuke Hotta, Hironori Murakami |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
medicine.medical_specialty
business.industry Paroxysmal atrial fibrillation Left atrium Diastole Case Report Atrial fibrillation 030204 cardiovascular system & hematology medicine.disease Contractility 03 medical and health sciences 0302 clinical medicine medicine.anatomical_structure Left atrial Internal medicine cardiovascular system medicine Cardiology Sinus rhythm cardiovascular diseases 030212 general & internal medicine Cardiology and Cardiovascular Medicine business Lateral wall |
| Zdroj: | J Cardiol Cases |
| ISSN: | 1878-5409 |
| Popis: | Paroxysmal atrial fibrillation (PAF) reduces atrial contractility due to atrial remodeling, but little is known about the process by which contractile function is reconstituted after spontaneous conversion to sinus rhythm (SR). A 63-year-old healthy man developed PAF. PAF persisted for 2 days before spontaneous conversion to SR. Serial echocardiograms were performed at 1, 24 h, 3/4/7 days after conversion. Longitudinal myocardial strain during the pump phase of the left atrium (LA) was generally reduced at 1 h. Normal strain of the LA was restored at 3 days with the exception of the lateral wall, where restoration was delayed until 4 days. The ratio between the mitral early and atrial diastolic velocities (E/A) at 24 h was within a pseudonormal range at 1.8, but the ratio between E and early mitral annulus velocity (e’: E/e’) remained normal. The E/A ratio gradually decreased until 7 days post conversion, but the E/e’ ratio remained normal throughout the observation period. |
| Databáze: | OpenAIRE |
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