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Cardiac Arrhythmias Frequency During Fiberoptic Bronchoscopy and Correlation With Hypoxemia
Alan S. Katz, MD;
Eric L. Michelson, MD;
Jesse Stawicki;
Fred D. Holford, MD
Arch Intern Med. 1981;141(5):603-606.
Abstract
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• To evaluate the occurrence of ECG abnormalities during fiberoptic bronchoscopy in relation to specific stages of the procedure and to hypoxemia, we prospectively studied 50 hospitalized patients aged 53 ± 18 years (mean ± SD) who were undergoing bronchoscopy by continuously monitoring cardiac rhythm with a continuous two-channel ECG recorder and oxygen saturation by using ear oximetry. Major disturbances of cardiac rhythm (ie, atrial, ventricular, or both) developed in 20 (40%) patients. Ventricular arrhythmias were recorded in ten patients (20%) and occurred with greatest frequency during passage of the bronchoscope through the vocal cords in five of these patients. Atrial arrhythmias were detected in 16 patients (32%), but their occurrence did not correlate closely with any one stage of the procedure. Arrhythmias were most frequent in association with periods of maximum oxygen desaturation in 12 of these 20 patients. Oxygen desaturation persisted for greater than one hour after bronchoscopy in 34 (68%) of 50 subjects. Notably, no correlation was observed between the frequency of arrhythmias during bronchoscopy and patients' age, sex, prior medications, or preexisting cardiac or pulmonary disorders. In no case was an ECG abnormality associated with adverse clinical sequelae.
(Arch Intern Med 1981;141:603-606)
Author Affiliations
From the Cardiovascular-Pulmonary Division and Cardiology Sections, Department of Medicine, Hospital of the University of Pennsylvania (Drs Katz, Stawicki, and Holford), and the Departments of Research and Medicine (Dr Michelson), Lankenau Hospital, Philadelphia.
Footnotes
Accepted for publication April 15, 1980.
Reprint requests to 3308 Medical Science Bldg, Lankenau Hospital, Lancaster and City Line avenues, Philadelphia, PA 19151 (Dr Michelson).
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