BACKGROUND: Sleep loss is associated with increased cardiovascular morbidity and mortality. It is known that chronic sleep restriction affects autonomic cardiovascular control and inflammatory response. However, scanty data are available on the effects of acute sleep deprivation (ASD) due to night shifts on the cardiovascular system and its capability to respond to stressor stimuli. The aim of our study was to investigate whether a real life model of ASD, such as "one night on-call", might alter the autonomic dynamic response to orthostatic challenge and modify the immune response in young physicians. METHODS: Fifteen healthy residents in Internal Medicine were studied before and after one night on-call at Rest and during a gravitational stimulus (head up-tilt test, HUT). Heart rate variability (HRV), blood pressure variability (BPV) and baroreflex sensitivity (BRS) were analyzed during Rest and HUT before and after ASD. Plasmatic hormones (epinephrine, norepinephrine, cortisol, renin, aldosterone, ACTH) and tissue inflammatory cytokines were measured at baseline and after ASD. RESULT: HRV analysis revealed a predominant sympathetic modulation and a parasympathetic withdrawal after ASD. During HUT, the sympathovagal balance shifted towards a sympathetic predominance before and after ASD. However, the magnitude of the autonomic response was lower after ASD. BPV and BRS remained unchanged before and after ASD as the hormone levels, while IFN-γ increased after ASD compared to baseline.
One night on-call : sleep deprivation affects cardiac autonomic control and inflammation in physicians / E. Tobaldini, C. Cogliati, E.M. Fiorelli, V. Nunziata, M.A. Wu, M. Prado, M. Bevilacqua, D. Trabattoni, A. Porta, N. Montano. - In: EUROPEAN JOURNAL OF INTERNAL MEDICINE. - ISSN 0953-6205. - 24:7(2013 Oct), pp. 664-670.
|Titolo:||One night on-call : sleep deprivation affects cardiac autonomic control and inflammation in physicians|
TOBALDINI, ELEONORA (Primo)
PORTA, ALBERTO (Penultimo)
MONTANO, NICOLA (Ultimo)
|Parole Chiave:||sleep deprivation ; heart rate variability ; inflammation ; autonomic nervous system|
|Settore Scientifico Disciplinare:||Settore MED/09 - Medicina Interna|
Settore ING-INF/06 - Bioingegneria Elettronica e Informatica
|Data di pubblicazione:||ott-2013|
|Digital Object Identifier (DOI):||http://dx.doi.org/10.1016/j.ejim.2013.03.011|
|Appare nelle tipologie:||01 - Articolo su periodico|