Incidence and prognostic significance of right bundle branch block complicating acute myocardial infarction.
Bangladesh Med Res Counc Bull
;
2002 Apr; 28(1): 26-35
Article
in English
| IMSEAR
| ID: sea-202
ABSTRACT
The incidence and hospital courseofacute myocardial infarction wereobserved among randomly selected 560 patients. The mean age of the patients was 53 +/- 6.67 years with male-female ratio 2.61. The incidence of right bundle branch block (RBBB) was 15% (84 out of 560 patients). New RBBB, old RBBB and RBBB of indeterminate age were observed in 33 (39.25%), 23 (27.40%) and 28 (33.25%) cases respectively. RBBB was isolated in 50 (60%) cases and bi-fascicular in remaining 34 (40%) cases. The rate of use of thrombolytic was greater in RBBB group than non-RBBB group (52% vs 30.67%, P < 0.05). The complications were more frequently observed in patients with RBBB in-hospital mortality, 27.40% vs 10.90% (P < 0.01); use of temporary pacemaker, 15% vs 9% (P < 0.05); and heart failure, 50% vs 35% (P < 0.05). In sub-group analysis, in-hospital mortality rate was higher among bi-fascicular group than isolated RBBB group (P < 0.05). Thus it appeared from the results that the incidence of RBBB is relatively common i.e. 15% over all (84 out of 560) and 5.90% new (33 out of 560) and despite greater use of thrombolytics, some specific in-hospital complications were significantly higher in patients with RBBB than without, RBBB.
Full text:
Available
Index:
IMSEAR (South-East Asia)
Main subject:
Prognosis
/
Aged
/
Bundle-Branch Block
/
Female
/
Humans
/
Male
/
Thrombolytic Therapy
/
Prospective Studies
/
Hospital Mortality
/
Adult
Type of study:
Incidence study
/
Observational study
/
Prognostic study
/
Risk factors
Language:
English
Journal:
Bangladesh Med Res Counc Bull
Year:
2002
Type:
Article
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