Cardiac magnetic resonance evaluation of the impact of interventricular and intraventricular dyssynchrony on cardiac ventricular systolic and diastolic function in patients with isolated left bundle branch block
Hindman MC, Wagner GS, JaRo M, Atkins JM, Scheinman MM, DeSanctis RW, Hutter AH Jr, Yeatman L, Rubenfire M, Pujura C, Rubin M, Morris JJ (1978) The clinical significance of bundle branch block
complicating acute myocardial infarction.
The pattern seen on the ECG is persistent ST elevations in the electrocardiographic leadsV1-V3 with a right bundle branch block
(RBBB) appearance with or without the terminal S waves in the lateral leads that are associated with a typical RBBB.
Presence of T-wave changes or bundle branch block
(LBBB or RBBB) in this cohort of patients with CCHF predicted death with a sensitivity of 72.
Because left bundle branch block
and non-ischemic heart disease lead to diffuse, as opposed to localized, heart problems, study authors reasoned women were more responsive to CRT-D therapy, a treatment that strengthens the overall mechanical pumping action of the heart and coordinates the heart's electrical activity.
This approval allows heart failure patients with left bundle branch block
to benefit from this therapy," said Jeffrey Shuren, MD, director of the FDA's Center for Devices and Radiological Health.
Panel members said the approval should be limited to patients in those categories who also have an electrical problem in the heart known as a left bundle branch block
A nurse took his ECG which revealed a massive heart attack with left bundle branch block
The EKG was abnormal, showed tachycardia, right bundle branch block
, and Q wave abnormalities.
A 50-year-old head-injured patient with left bundle branch block
and neurogenic pulmonary oedema scheduled for urgent re-exploration and evacuation of large extradural haematoma developed broad complex ventricular tachycardia with hypotension five minutes after induction of anaesthesia.
Electrocardiography showed left bundle branch block
with diffuse changes in the ST segment and the T wave.