Key result
Sleep fragmentation tracks with coronary care illness severity, while unit design shows no effect.
Observational (n=42)
Of 42 coronary care patients studied during 10 hr. of polygraphically recorded sleep, 28 were in an open-ward coronary care unit and 14 were in a semi-private telemetry unit. The observed sleep disturbances were not a function of type of unit, length of hospitalization, sex, or medications. Sleep was significantly less fragmented in those patients judged less severe in pathology. These results indicate that alterations in normal sleep patterns occur routinely within coronary care environments, even in the absence of disturbing environmental stimuli and suggest that a closer analysis be made of sleep in these settings in light of the known relationships between sleep and cardiac function.
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Dohno et al. (1979) conducted an observational in Coronary care patients (n=42). Open-ward coronary care unit vs. Semi-private telemetry unit was evaluated on Sleep disturbances and sleep fragmentation. Sleep fragmentation in coronary care patients was significantly associated with greater pathology severity, while unit type (open-ward vs semi-private) had no effect.
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