ecg: bifascicular block
TRANSCRIPT
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ECG OF THE WEEKPROF.S.SUNDAR UNIT
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ECG FINDINGRATE 150/MINRHYTHM AF/IRREGULARLY IRREGULARAXIS -80⁰/LEFT AXIS DEVIATIONP WAVE ABSENTQRS COMPLEX Q WAVE V1-V4 SECONDARY R WAVE WITH
SLURRING,WIDENING V1-V4 WIDENED TERMINAL S WAVE V5,6
S/O AWMI WITH RBBB rS pattern in II,III and aVF s/o LAFB A SINGLE VENTRICULAR ECTOPIC IS SEENST SEGMENT Elevation v1-v4 s/o ACUTE AWMIT WAVE SYMMETRICAL, DEEP INVERSION V1 -V4 S/O
PRIMARY CHANGES
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DIAGNOSISACUTE ANTERIOR WALL MYOCARDIAL
INFARCTION WITH BI-FASCICULAR BLOCK(RBBB WITH LAFB)
ATRIAL FIBRILLATION
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MI WITH BLOCKLBBB MAY BE MISINTERPRETED AS
RECENT ANTROSEPTAL MIMI MAY BE MASKED BY PRESENCE OF
LBBBRBBB NEITHER MIMICS NOT MASKS
MOST MI
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MI WITH RBBBRBBB AFFECTS MID AND TERMINAL
PORTIONAL OF QRS COMPLEXSINGLE EXCEPTION- POSTERIOR BASAL MI
WHICH AFFECT TERMINALPART QRS AND MASKED BY RBBB
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RBBB WITH ANTERIORWALL MIR WAVE DISAPPEAR IN V1-V4 AND
REPLACED BY QWAVE DUE TO INVOLMENT OF ANTERIORWALL OF RV
SECONDARY R WAVE PERSIST DUE TO DELAYED ACTIVATION OF UNINVOLVED FREEWALL OF RV
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RBBB WITH INFERIORWALL MIMINIMAL INFLUENCE ON THE
ANTERIORWALL LEADS QWAVE AND ST SEGMENT CHANGES IN
INFERIORWALL LEADS ALONG WITH RBBB PATTERN IN PRECARDIAL LEADS
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PROGNOSISMI WITH LAFB – MINIMAL ADVERSE
EFFECT ON PROGNOSISMI WITH LAFB WITH RBBB – POOR
PROGNOSIS MORTALITY 4-5TIMES INCREASED
MI WITH LPFB WITH RBBB – POOR PROGNOSIS MORTALITY 6-7 TIMES INCREASED
10 MI WILL DEVELOP BIFSCICULAR BLOCK
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THANK YOU