November 1972

Sleep and Cardiac Arrhythmias

Author Affiliations

San Diego, Calif; Palo Alto, Calif

From the Navy Medical Neuropsychiatric Research Unit (Drs. Smith, Johnson, and Zir) and the Balboa Naval Hospital (Dr. Rothfeld), San Diego, Calif; and the Stanford University Medical Center (Dr. Tharp), Palto Alto, Calif. Dr. Smith is now with the Division of Neurology, Scripps Clinic and Research Foundation, La Jolla, Calif. Dr. Rothfeld is now with the Beth Israel Hospital, Newark, NJ. Dr. Zir is now with the New York University Medical Center, New York.

Arch Intern Med. 1972;130(5):751-753. doi:10.1001/archinte.1972.03650050071013

The frequency of cardiac arrhythmias in wake and sleep was studied in 18 patients admitted to a coronary care unit. No significant differences were found in the distribution of ventricular premature contractions (VPCs) or atrial premature contractions (APCs) in either wake or sleep. A tendency for ventricular premature contractions to occur more commonly during wake-sleep transitions than during sleep transition periods (NREM-REM) was noted but this did not attain significance.