The prognostic significance of typical perfusion defects on vasodilator stress myocardial perfusion SPECT in patients with left
bundle branch block or right ventricular apical pacing.
Fragmented left sided QRS in absence of
bundle branch block: sign of left ventricular aneurysm.
Pinski, "Acute Myocardial Infarction and Complete
Bundle Branch Block A Hospital Admission: Clinical Characteristics and Outcome in the Thrombolytic Era." (16) AV Blocks and intraventricular blocks in stage 4 are 38.8% and 92% respectively.
KEYWORDS: Intraventricular dyssynchrony, Left
bundle branch block.
It was based on scores as in parenthesis: sinus tachycardia (2); incomplete right
bundle branch block (2); complete right
bundle branch block (3); T-wave inversion, graded by magnitude (V1 [0 to 2], V2 [1 to 3], V3 [1 to 3], V1 through V4 all inverted 2 mm [4]); S1Q3T3 complex components (S wave in lead I [0], Q wave in lead III [1], inverted T wave in lead III [1], and the entire S1Q3T3 complex [2]).
Medical College, Amritsar, out of which 30 patients as case (Group A: Patients of myocardial infarction with
bundle branch block) and 30 patients as control (Group B: Patients of myocardial infarction without
bundle branch block) were enrolled in this study.
Beat to beat variation of the ST segment in a patient with right
bundle branch block, persistent ST segment elevation, and ventricular fibrillations: a case report.
Brugada, "Right
bundle branch block, persistent ST segment elevation and sudden cardiac death: a distinct clinical and electrocardiographic syndrome: a multicenter report," Journal of the American College of Cardiology, vol.
The examination revealed the right
bundle branch block with ST-T changes.
It is characterized by persistent or transient ST elevation with successive negative T wave in the right precordial leads (V1, V2) with or without right
bundle branch block in the absence of structural heart abnormalities.