GEORGE A. ROBITAILLE
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To the Editor: The case report of Drs. Harrington and DeSanctis (Ann. Intern. Med. 70: 105, 1969) describing "Hiccup-Induced Atrioventricular Block" was indeed interesting but not surprising for those of us who have established the routine use of various inspiratory maneuvers in our heart stations as part of the regular electrocardiogram (1).
We continue to be impressed by the great variety of arrhythmias that are brought out by the simple act of taking a deep breath and holding it for a short period. The use of inspiratory leads in routine electrocardiography has had its greatest practical use in bringing to
ROBITAILLE GA. DANGEROUS ARRHYTHMIAS. Ann Intern Med. ;70:1047. doi: 10.7326/0003-4819-70-5-1047_1
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Published: Ann Intern Med. 1969;70(5):1047.
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