RBBB


Also found in: Acronyms.

RBBB

right bundle branch block; see bundle branch block, under block.

RBBB

abbreviation for right bundle branch block.

RBBB

Right bundle-branch block, see there.

bundle branch block

,

BBB

A defect in the electrical conduction system of the heart in which there is failure of conduction down one of the main branches of the bundle of His. On the surface electrocardiogram, the QRS complex is > 0.12 sec. and its shape is altered. Synonym: bundle branch heart block; interventricularheart block

left bundle branch block

Abbreviation: LBBB
A defect in the conduction system of the heart in which electrical conduction down the left bundle branch is delayed. On the 12-lead EKG, it gives the QRS complex a widened QS complex in lead V1 (0.12 sec.).

right bundle branch block

Abbreviation: RBBB
A defect in the conductive system of the heart in which electrical conduction down the right bundle branch is delayed. On the 12-lead EKG, it gives the widened QRS complex an RSR appearance in leads V1 and V2.

right bundle branch block

Abbreviation: RBBB
A defect in the conductive system of the heart in which electrical conduction down the right bundle branch is delayed. On the 12-lead EKG, it gives the widened QRS complex an RSR appearance in leads V1 and V2.
References in periodicals archive ?
ECG Changes ECG Changes Niranjan Mambally Present Rachaiah et al (8) Study RAD 42% 28% Incomplete RBBB 4% 12% P Pulmonale 42% 34% Table 16.
Abnormalities such as RAE, RVH, RBBB, low voltage ECG SVT and APCs were more prevalent in very severe COPD than in mild COPD.
6 Early QRS transition zone * 15/18 10/31 ST depression in V1-5 3/18 4/31 ST depression in V1-5 in the absence of LBBB or 1/18 2/31 RBBB (compatible with coding) T-wave changes 14/18 6/31 T-wave changes in the absence of LBBB or RBBB (compatible 9/18 5/31 with coding) * Presence of LBBB or RBBB * 7/18 1/31 OCA or T-wave changes 16/18 6/31 Presence of early QRS transition zone or RBBB or LBBB 15/18 10/31 Presence of ST depression or LBBB or RBBB 8/18 6/31 Presence of ST depression or, T-wave changes or 16/18 9/31 LBBB or RBBB Variable P-value Age (yr) 0.
22) The ECG is normal in almost all cases, and corresponding to the origin in the LV, ILVT shows a RBBB morphology with a relatively narrow QRS duration (<140ms).
Many patient studies have been performed to assess whether RBBB can predict underlying heart disease or risk of death, but it does not appear to do so.
ECG evidence of ischaemic heart disease, left ventricular hypertrophy, and RBBB was more common among the arsenic-exposed groups than among the reference group.
age, weeks ECG a b c 1 28 T inv (V1-V6); ST dep, 87 65 DEC 2 mm (V2-V6) 2 30 T inv (V1-V6); ST dep, 173 156 190 2 mm (V2-V5) 3 34 T inv (V1-V6) 237 85 90 4 35 T inv (V1-V4); ST dep, 213 198 ND 1 mm (V2-V4) 5 40 T inv (V1-V6); AVB I-II; 940 DEC DEC RBBB 6 40 T inv (V1-V6); ST dep, 2260 * 525 80 1 mm (V1-V3) 7 41 T inv (V1-V4) 729 227 ND CK-MB, [micro]g/L cTnT, [micro]g/L Case Gestational no.
Exclusion criteria included: Chronic non cardiac condition in which life expectancy is less than 6 months, RBBB on ECG, Asymptomatic patients with reduced LVEF[?
ECG showed sinus tachycardia, with RBBB and S1Q3T3 pattern.
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.