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Biomedical subjects

H Fahdul

Publications and source records attributed to H Fahdul.

7 recordsLinked to original sources
PubMed1976

Multifascicular block in cardiomyopathy. Incidence, localization by His bundle study and prognosis.

Of 70 patients with cardiomyopathy, nine (13%) had bifascicular block: right bundle branch block with left anterior hemiblock in four, right bundle branch block with left posterior hemiblock in two, and left bundle branch block with left anterior hemiblock in three. Isolated left bundle branch block was present in four, isolated left anterior hemiblock in 13, and isolated left posterior hemiblock in one. No isolated right bundle branch block was found. Five of the patients with bifascicular block were evaluated by His bundle electrocardiography and atrial pacing. Block in the His-Purkinje system (prolonged HV interval) was present in four and atrioventricular conduction (AH interval) was normal in all five. Despite a common prolongation in intraventricular conduction, short term prognosis seems to be favorable since: (1) none had spontaneous progression to more advanced block or experienced Stokes-Adams attacks for an average follow-up period of at least 42 months, and (2) with atrial pacing, one-to-one atrioventricular conduction persisted to rates up to 150/min in all patients with no further prolongation of HV interval.

Adult↗
PubMed1975

Complete heart block with normal QRS duration occurring distal to the his bundle in acute inferior myocardial infarction.

A patient with acute inferior myocardial infarction developed on the second day complete heart block with normal QRS duration, and the block was found to be distal to the His bundle. To our knowledge, this is the first such documented case in the English literature. Failure of the preceding Wenckebach periods and of complete heart block to respond to intravenous atropine may be a clinical clue to the nature of this type of heart block. The implications and possible explanations are discussed in the light of recent knowledge concerning the nature of heart block in inferior wall myocardial infarction.

Acute Disease↗
PubMed1975

His bundle electrogram in congenitally corrected transposition of the great vessels.

His bundle electrogram was recorded in a young adult male with corrected transposition of the great vessels and single ventricle. Prolonged PA and AH intervals, wide diphasic His spike, and normal HV intervals were found. These findings are suggestive of the diffuse nature of conduction delay in this congenital lesion involving intra-atrial, AV nodal, and intra-His regions.

Adult↗
PubMed1975

Electrocardiographic abnormalities in alcoholic cardiomyopathy. A study of 65 patients.

Electrocardiograms of 65 patients with alcoholic cardiomyopathy seen over a five-year period were reviewed. ST segment and T wave abnormalities, left ventricular hypertrophy, biatrial enlargement, left atrial enlargement, premature ventricular contractions, prolonged PR interval, and left anterior hemiblock are the most frequently encountered abnormalities. A combination of left ventricular hypertrophy and biatrial enlargement with or without left anterior hemiblock is most specific, Atrial flutter or fibrillation, pathologic Q waves, and bifascicular block are not uncommon findings, while isolated right atrial or right ventricular abnormalities, and isolated posterior hemiblock or right bundle branch block are rare. Electrocardiographic changes are in general similar to those seen in any diffuse cardiomyopathy and reflect biventricular involvement.

Adult↗