and in-hospital mortality in acute myocardial infarction.
Effects of left bundle-branch block
on cardiac structure, function, perfusion, and perfusion reserve: implications for myocardial contrast echocardiography versus radionuclide perfusion imaging for the detection of coronary artery disease.
In addition to these abnormalities, late risers were also prone to other diseases like Wolf-Parkinson-White-Syndrome32 and right and left bundle-branch blocks
(RBBB and LBBB)33.
The clinical suspicion of LDAC is alerted in patients who present ventricular arrhythmias of RBBB and left bundle-branch block
type and unexplained T-wave inversion in inferolateral leads.
Electrocardiographic-pathologic correlation study of left ventricular hypertrophy in the presence of left bundle-branch block
Chang AM, Shofer FS, Tabas JA, Magid DJ, McCusker CM, Hollander JE (2009) Lack of association between left bundle-branch block
and acute myocardial infarction in symptomatic ED patients.
Patients with a prolonged QRS duration may have a left bundle-branch block
(LBBB), right bundle-branch Block
(RBBB), nonspecific intraventricular conduction delay (IVCD), or paced rhythm.
Electrocardiogram (ECG) revealed sinus rhythm, normal axis, prolonged PR interval and complete left bundle-branch block
(LBBB) with QRS duration of 160 ms.
Only three minor heart conduction disorders were noticed, including two incomplete right bundle-branch blocks
and one complete left bundle-branch block
Dr Frank Marcus has confirmed this should read 'left bundle-branch block
' or LBBB.
ST segment depression can be an indication of myocardial ischemia, ventricular hypertrophy, bundle-branch block
, or hypokalemia, or may result from digitalis administration.
Of these four, the ECGs of two patients normalized, one 17-year-old female remained with atrioventricular (AV) dissociation and intermittent left bundle-branch block
, and one 15-year-old female developed right bundle-branch block
plus fascicular left bundle-branch block