ASSESSMENT OF INTERATRIAL DYSSYNCHRONY BY IN MITRAL STENOSIS: EFFECT OF AFTERLOAD RED MITRAL VALVULOPLASTY
Abstract
Atrial fibrillation (AF) predispositionin mitral stenosis (MS) has been studiedusing man
aphic (increased P-wave dispersion) and echocardiographic parameters (interatria
cal delay). There are scarce data on the effect of percutaneous balloon mitral valvuloplast
interatrial electromechanical coupling in patients with MS. We aimed to assess the interatria
cal coupling in MS before and after PBMVby tissue Doppler imaging (TDI
hy.
ethods: Thisstudy included 45patients suffered frommoderate to severeMS who underwen
sfully without complication and 20 healthy volunteers as a control group. We compare
groups in the clinical, electrocardiographic and echocardiographic parameters. The patient
re-evaluated one week after PBMV. Interatrial electromechanicaldelay (EMD) was estimate
and after PBMV and we compared the results.
nteratrial EMD (56.4 15.8 vs. 34.6 7.2 ms, p <0.001) was higher in patients with MS a
ealthy individuals. The maximum P-wave duration (P-max) and P-wave dispersion (PWD
significant positive correlation with the interatrial EMD (r = 0.37, p < 0.001 and r = 0.41, p
ely). There was a highly significant decrease in the interatrial EMD (56.4 15.8 vs. 38.3
001) one week after PBMV.
he current study showed significant increase in the interatrial EMD in patients with moderat
These changes improved significantly after PBMV.
ral stenosis; Atrial fibrillation; Tissue Doppler imaging; Interatrial electromechanical delay
alloon Mitral Valvuloplasty.
Awave:Peak late annular velocityby TDI;AF:Atrial fibrillation;BSA:Body surface area
m;LAA:Left atrial area;LAD:Left atrial dimension; LAEF:Left atrial ejection fraction
al expansionindex;LAV:Left atrial volume; MS:Mitral stenosis;MV:Mitral valve;MVA
ea;P-A:Thetime interval calculated fromthe beginning of P wave on the ECG until th
the late diastolic waveat the lateral border of the annulusmeasured by TDI;PBMV
alloon mitral valvuloplasty;P-max:Maximal duration of P-wave;P-min:Minimaldurationo
P-wave dispersion;SPAP:Systolic pulmonary artery pressure; TDI:Tissue Doppler imaging
aphic (increased P-wave dispersion) and echocardiographic parameters (interatria
cal delay). There are scarce data on the effect of percutaneous balloon mitral valvuloplast
interatrial electromechanical coupling in patients with MS. We aimed to assess the interatria
cal coupling in MS before and after PBMVby tissue Doppler imaging (TDI
hy.
ethods: Thisstudy included 45patients suffered frommoderate to severeMS who underwen
sfully without complication and 20 healthy volunteers as a control group. We compare
groups in the clinical, electrocardiographic and echocardiographic parameters. The patient
re-evaluated one week after PBMV. Interatrial electromechanicaldelay (EMD) was estimate
and after PBMV and we compared the results.
nteratrial EMD (56.4 15.8 vs. 34.6 7.2 ms, p <0.001) was higher in patients with MS a
ealthy individuals. The maximum P-wave duration (P-max) and P-wave dispersion (PWD
significant positive correlation with the interatrial EMD (r = 0.37, p < 0.001 and r = 0.41, p
ely). There was a highly significant decrease in the interatrial EMD (56.4 15.8 vs. 38.3
001) one week after PBMV.
he current study showed significant increase in the interatrial EMD in patients with moderat
These changes improved significantly after PBMV.
ral stenosis; Atrial fibrillation; Tissue Doppler imaging; Interatrial electromechanical delay
alloon Mitral Valvuloplasty.
Awave:Peak late annular velocityby TDI;AF:Atrial fibrillation;BSA:Body surface area
m;LAA:Left atrial area;LAD:Left atrial dimension; LAEF:Left atrial ejection fraction
al expansionindex;LAV:Left atrial volume; MS:Mitral stenosis;MV:Mitral valve;MVA
ea;P-A:Thetime interval calculated fromthe beginning of P wave on the ECG until th
the late diastolic waveat the lateral border of the annulusmeasured by TDI;PBMV
alloon mitral valvuloplasty;P-max:Maximal duration of P-wave;P-min:Minimaldurationo
P-wave dispersion;SPAP:Systolic pulmonary artery pressure; TDI:Tissue Doppler imaging
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