His bundle electrogram recording via the arm veins

J. ELECTROCARDIOLOGY 15 (2), 1982, 204

L E T T E R TO THE EDITOR: 9 electrode requires looping across the tricuspid valve similar to that described by Guiffrida et al. The tracing ws obtained from a patient in whom the femoral approach was not possible. For recording, a multichannel recorder Mingograf Cardirex 6T (Siemens) was used. The Sommer electrodes offer the same advantages for His bundle recording as the BerkovitsCastellanos ones; simultaneous atrial pacing, however, is not possible. The loop of the electrode tip is not difficult to obtain; nevertheless, the technique is more time-consuming than the classical femoral approach. I see a further disadvantage in bursts of ectopic beats, which can be elicited during trials of loop formation. Peter Rakovec, M.D., Ph.D. Cardiological Clinic Clinical Center Zalo.~ka 7 61105 Ljubljana Yugoslavia

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To the Editor: I rehd with great interest the article by Guiffrida et al. 1 on His bundle electrogram recording via the arm veins using a Berkovits-Castellanos hexapolar electrode catheter. In our experience, stable His bundle electrograms via the arm approach are obtainable also by using 6F Sommer bipolar pacemaker elec9trodes 001535 USCI. These electrode catheters have a pair of electrodes (with 10 mm interelectrode distance) 15 cm proximal to the tip. The technique of His bundle recording by this type of

1. GIUFFRIDA, G, CRITELLI, G, GIUDICE, P, MICELI, D, BETOCCHI, S, MAZZA, F, CHIARIELLO, M AND CONDORELLI, M: His Bundle Electrogram Recording Using a Multipolar Electrode Catheter Via the Arm Veins. J Electrocardiol 14:125, 1981

IN MEMORIAM We mourn the passing of DR. EIICHI KIMURA President, Nippon Medical Schooll Professor, Department of Internal Medicine February 11, 1982

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