A 75-year-old woman was admitted for severe retrosternal chest pain. Her past medical history revealed mild diabetes mellitus and bifasciscular block (left anterior hemiblock [LAHI and incomplete right bundle-branch block [RBBB]). The electrocardiogram was compatible with a subendocardial (non-Q wave) inferior and anterolateral AMI. This was characterized by new ST-segment depression and T-wave...

myocardial infarction and tobacco smoking: risk of heart rhythm and conduction disorders e imani , msc n hajizadeh , bs z khademy , msc f naghizadeh , bsc received: 6 aug, 2009 accepted: 17 oct, 2009 abstract background & aims: smoking increases risk of myocardial infarction and its complications. in addition, it increases blood pressure, heart rate and vasoconstriction. the purpose of this res...

Abstract Aims Cardiac dyssynchrony in patients with repaired Tetralogy of Fallot (rToF) has been attributed to right bundle branch block (RBBB), fibrosis and/or the patches that are inserted during repair surgery. We aimed investigate basis abnormal activation rToF by mapping electrical sequence sinus rhythm (SR) and ventricular (RV) pacing. Methods Results A total 17 were studied [13 rToF, 2 l...

patients and methods previously recorded data of 231 patients who underwent surgical closure of vsd between january 2009 and january 2012 at the rajaie cardiovascular medical and research center were retrospectively reviewed. vsd surgical repair was performed using continues suturing technique in group a patients (n = 163, 70.6%) and interrupted suturing technique in group b patients (n = 68, 2...

The most effective method used for the diagnosis of heart diseases is Electrocardiogram (ECG). shape ECG signal and time interval between its various components gives useful details about any underlying disease. Any dysfunction called as cardiac arrhythmia. electrical impulses are blocked due to arrhythmia Bundle Branch Block (BBB) which can be observed an irregular wave. BBB beats indicate ser...

Fig.1 shows a premature atrial complex (PAC) introduced during a narrow QRS tachycardia. What is the response and what is the interpretation? The tachycardia is a regular RBBB tachycardia with cycle length of 440 ms and ventriculo-atrial interval of 30 ms. There is near simultaneous activation of atrium and ventricle during tachycardia. Presence of His deflection prior to the QRS makes ventricu...

Abstract Funding Acknowledgements Type of funding sources: None. Introduction Despite optimal medical treatment, the 5-years mortality and HF readmission rate was 75.3% 48.5%, respectively. The current guidelines recommended cardiac resynchronization therapy (CRT) by implanting biventricular pacing (BVP) for specific group patients with reduced ejection fraction (HFrEF) in order to reduce risk ...

AIMS Left ventricular (LV) asynchrony assessment is mostly based on delays between regional myocardial velocity peaks. Regional function is barely considered. We propose apical transverse motion (ATM) as a new parameter integrating both temporal and functional information, which was tested in different conduction delays. METHODS AND RESULTS We examined 67 patients, 11 patients with post-infar...

We analyzed the effect of functional fascicular block (FFB) on ventriculoatrial conduction time (VACT) during orthodromic tachycardia (OT) in 32 patients with single accessory pathway (AP) of the Kent bundle type. The location of AP was left free wall (LFW-AP) in 21 patients, left posteroseptal in 6, right free wall in 2, and right anteroseptal in 3. FFB either alone or in combination with func...