References:
  1. LANGENDORF R, MEHLMAN JS: Blocked (nonconducted) A-V nodal premature systoles imitating first and second degree A-V block. AmerHeart J 34: 500, 1947
  2. Rosen KM, Rahimtoola SH, Gunnar RM. Pseudo A-V block secondary to premature non-propagated His bundle depolarization. Documentation by His bundle electrocardiography. Circulation 1970; 42:367–373.
  3. Cannon DS, Gallagher JJ, Goldreyer BN, Damato AN. Concealed bundle of His extrasystoles simulating nonconducted atrial premature beats. Am Heart J 1972; 83:777–779.
  4. El-Sherif N, Befeler B, Aranda J, Castellanos A, Lazzara R. Re-entry due to manifest and concealed His bundle ectopic systoles. Circulation 1976; 53:902–908.
  5. Bonner AJ, Zipes DP. Lidocaine and His bundle extrasystoles. His bundle discharge conducted with functional right or left bundlebranch block, or blocked entirely (concealed). Arch Intern Med 1976; 136:700–704.
  6. Narula OS: Conduction disorders in the A-V transmission system, in Dreifus LS, Likoff W (ed): Cardiac Arrhythmias. New York, Grune & Stratton Inc, 1973, p 262.
  7. Eugster GS, Godfrey CC, Brammell HL, et al: Pseudo A-V block associated with A-V and H-V conduction defects. Am Heart J 85:789-796, 1973.
  8. Bonner AJ, Zipes DP. Lidocaine and His bundle extrasystoles. His bundle discharge conducted with functional right or left bundlebranch block, or blocked entirely (concealed). Arch Intern Med 1976; 136:700–704.
  9. Dhurandhar RW, Valen FJ, Phillips J. Pseudo second degree atrioventricular block with bradycardia. Successful treatment with quinidine. Brit Heart J 1976; 38:1363– 1366.
  10. Castellanos A. Sung R. Mallon SM. Ghahramani A. Moleiro F. Myerburg RI. His bundle electrocardi- ography in manifest and concealed right bundle branch extrasystoles. Am Heart 1977; 94(3):307.
  11. Khan, A., Ameen, A., Maraj, I., Turitto, G., & El-Sherif, N. E. A His bundle extrasystole can both induce and reverse 2:1 atrioventricular block. Journal of Interventional Cardiac Electrophysiology 2011; 32(2), 121-123.