EFFECTS OF HYPERVENTILATION ON VARIOUS ARRHYTHMIAS Auricular Extrasystoles
نویسندگان
چکیده
ALTERATIONS of RS-T segment and of the T waves of the electrocardiogram have been described as a consequence of hyperventilation.5' 13 This, however, is controversial, since such changes were not seen by other investigators,' provided hyperventilation was performed in such a manner that a marked increase of the sinus rate was avoided and the respiration was not so shallow and rapid as to cause anoxia. One of us observed a patient for several years who was subj ect to long paroxysms of auricular ectopic tachycardia. Hyperventilation in this patient was followed by a conspicuous reduction in the number of ectopic beats.'2 There are no other studies known to to us on the influence of hyperventilation on arrhythmias of various types. The present report deals with an investigation of the response of arrhythmias to hyperventilation. We do not propose to present a statistical analysis of the frequency of the changes since the series is too small; our report will be confined to the presentation of a few positive cases.
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