scholarly journals Left Ventricular Dyssynchrony in Acute ST Elevated Myocardial Infarction in Patients with Normal QRS duration

2016 ◽  
Vol 30 (1) ◽  
pp. 13-21
Author(s):  
Iftekhar Alam ◽  
Tuhin Haque ◽  
Mohammad Badiuzzaman ◽  
Abdullah Al Masud ◽  
Abrar Kaiser ◽  
...  
Keyword(s):  
Myocardial Infarction ◽  
Peak Systolic Velocity ◽  
Left Ventricular ◽  
Left Ventricular Dyssynchrony ◽  
Control Group ◽  
Ventricular Dyssynchrony ◽  
Acute Stemi ◽  
Lv Dyssynchrony ◽  
Qrs Duration ◽  
Ejection Phase

Background: The aim of this study was to assess left ventricular dyssynchrony after acute ST elevated myocardial infarction (STEMI) in patients with normal QRS duration. Real time 3D echocardiography (RT3DE) with triplane tissue synchronization imaging (TSI) used to identify segmental left ventricular systolic velocity in ejection phase to evaluate LV dyssynchrony in patients with STEMI and the findings were compared with control.Materials and methods: RT3DE with triplane TSI was performed within 4 days of AMI after thrombolysis or primary PCI in 31 patients and compared with 31 agematched controls. Regional myocardial velocities were assessed in 12 segments in ejection phase, and the corresponding time to peak systolic velocity (Ts) was measured. To assess LV dyssynchrony Ts-4, Ts-6, Ts- SD-6, Ts-12 and Ts-SD-12 were computed by offline dedicated software semi-automatically.Results: The dyssynchrony parameters were significantly prolonged in patients with AMI. Among the dyssynchrony parameters TS-SD-12 was better indicator of LV dyssynchrony. The Ts-SD-12 was significantly prolonged in the STEMI group when compared with controls. In patients with acute STEMI mean Ts-SD-12 was 43.2±19.1 milliseconds whereas in control group it was 23.0 ±6.5 milliseconds (p<0.05). The Ts-SD-12 was prolonged in patients with Anterior than Inferior STEMI as follows respectively 45.9± 17.6 and 40.0± 21 milliseconds.Conclusions: Triplane TSI by RT3DE is useful in evaluating LV dyssynchrony in patients with acute STEMI and even in those with normal QRS duration there is significant left ventricular dyssynchrony early after STEMI.Bangladesh Heart Journal 2015; 30(1) : 13-21

Role of Left Ventricular Dyssynchrony in Predicting Remodeling after ST Elevation Myocardial Infarction

2011 ◽  
Vol 29 (2) ◽  
pp. 165-172 ◽  
Author(s):  
Burak Turan ◽  
Fatih Yilmaz ◽  
Tansu Karaahmet ◽  
Kursat Tigen ◽  
Bulent Mutlu ◽  
...  
Keyword(s):  
Myocardial Infarction ◽  
Left Ventricular ◽  
St Elevation Myocardial Infarction ◽  
Left Ventricular Dyssynchrony ◽  
Ventricular Dyssynchrony ◽  
St Elevation

Does left ventricular dyssynchrony immediately after acute myocardial infarction result in left ventricular dilatation?

Heart Rhythm ◽  
2007 ◽  
Vol 4 (9) ◽  
pp. 1144-1148 ◽  
Author(s):  
Sjoerd A. Mollema ◽  
Gabe B. Bleeker ◽  
Su San Liem ◽  
Eric Boersma ◽  
Bas L. van der Hoeven ◽  
...  
Keyword(s):  
Myocardial Infarction ◽  
Acute Myocardial Infarction ◽  
Left Ventricular ◽  
Ventricular Dilatation ◽  
Left Ventricular Dyssynchrony ◽  
Ventricular Dyssynchrony ◽  
Left Ventricular Dilatation

scholarly journals Real time 3D echocardiography for evaluation of systolic dyssynchrony index in patients with dilated cardiomyopathy and acute myocardial infarction

2018 ◽  
Vol 6 (11) ◽  
pp. 3611
Author(s):  
Divij Khetan
Keyword(s):  
Myocardial Infarction ◽  
Acute Myocardial Infarction ◽  
Dilated Cardiomyopathy ◽  
Real Time ◽  
Left Ventricular ◽  
3D Echocardiography ◽  
Left Ventricular Ejection ◽  
Ventricular Dyssynchrony ◽  
Qrs Duration ◽  
Dyssynchrony Index

Background: In recent years, real time 3D echocardiography (RT3DE), a novel and non-invasive method has catched the eyes of various cardiologists for evaluating ventricular dyssynchrony. The main aim of the present study was to establish applicability of RT3DE for the assessment of ventricular dyssynchrony in patients with dilated cardiomyopathy (DCMP) and acute myocardial infarction (AMI).Methods: It was a hospital based observational and comparative study which included total 105 patients. Among all the patients, 35 with DCMP, 35 with AMI and 35 healthy patients were included. Various electrocardiographic, 2D and 3D echocardiography parameters were evaluated. Percentage ventricular systolic dyssynchrony index (SDI) was estimated using RT3DE to define ventricular dyssynchrony. The correlation of SDI with left ventricular ejection fraction (LVEF) and QRS duration of all patients was calculated using Pearson correlation co-efficient and regression equation.Results: Age distribution among all three groups was non-significant with mean age 53.56±12.11 years. The RT3DE displayed significantly higher SDI (p=0.001) in DCMP group (16.67±5.81 %) followed by AMI group (8.6±2.2%) and control group (3.14±1.0%). The value of QRS duration was also higher (>140ms) in DCMP patients (142.40±34.71ms) and lower (>120ms) in AMI (108.85±20.67ms) and healthy patients (91.08±8.88ms). No significant correlation of SDI with LVEF among all three groups was observed.Conclusions: The results added more practicality of RT3DE for estimation of ventricular dyssynchrony in patients with varied cardiac conditions and also displayed its utility as an appropriate guide for cardiac resynchronization therapy.

Prognostic Values of Left Ventricular Dyssynchrony Early after Non-ST Elevation Myocardial Infarction

2009 ◽  
Vol 18 ◽  
pp. S47
Author(s):  
Arnold C.T. Ng ◽  
Phuong Pham ◽  
Jane Vidaic ◽  
Christine Allman ◽  
Melissa Leung ◽  
...  
Keyword(s):  
Myocardial Infarction ◽  
Left Ventricular ◽  
St Elevation Myocardial Infarction ◽  
Left Ventricular Dyssynchrony ◽  
Ventricular Dyssynchrony ◽  
St Elevation
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