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Titolo:
ANALYSIS OF HEART-RATE-VARIABILITY IN POSTTRAUMATIC-STRESS-DISORDER PATIENTS IN RESPONSE TO A TRAUMA-RELATED REMINDER
Autore:
COHEN H; KOTLER M; MATAR MA; KAPLAN Z; LOEWENTHAL U; MIODOWNIK H; CASSUTO Y;
Indirizzi:
BEN GURION UNIV NEGEV,FAC HLTH SCI,BEER SHEVA MENTAL HLTH CTR,ANXIETY& STRESS RES UNIT,POB 4600 IL-84105 BEER SHEVA ISRAEL BEN GURION UNIV NEGEV,DEPT LIFE SCI IL-84105 BEER SHEVA ISRAEL
Titolo Testata:
Biological psychiatry
fascicolo: 10, volume: 44, anno: 1998,
pagine: 1054 - 1059
SICI:
0006-3223(1998)44:10<1054:AOHIPP>2.0.ZU;2-5
Fonte:
ISI
Lingua:
ENG
Soggetto:
VIETNAM COMBAT VETERANS; POWER-SPECTRAL-ANALYSIS; PSYCHOPHYSIOLOGICAL ASSESSMENT; CATECHOLAMINE EXCRETION; URINARY CORTISOL; MENTAL STRESS; IMAGERY; NOREPINEPHRINE; YOHIMBINE;
Keywords:
HEART RATE; HEART RATE VARIABILITY; SPECTRAL ANALYSIS; POSTTRAUMATIC STRESS DISORDER;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
38
Recensione:
Indirizzi per estratti:
Citazione:
H. Cohen et al., "ANALYSIS OF HEART-RATE-VARIABILITY IN POSTTRAUMATIC-STRESS-DISORDER PATIENTS IN RESPONSE TO A TRAUMA-RELATED REMINDER", Biological psychiatry, 44(10), 1998, pp. 1054-1059

Abstract

Background: Spectral analysis of heart rate variability has recently been shown to be a reliable noninvasive rest for quantitative assessment of cardiovascular autonomic regulatory responses. providing a dynamic map of sympathetic and parasympathetic interaction. In a prior study exploring the state of hyperarousal characterizing the posttraumaticstress disorder (PTSD) syndrome, the authors described standardized heart rate analysis carried out in 9 PTSD patients at rest. which demonstrated clear-cut evidence of a baseline autonomic hyperarousal state. Methods: To examine the dynamics of this hyperarousal state, standardized heart rate analysis was carried out in 9 PTSD patients compared to a matched control group Of 9 healthy volunteers. Twenty-minute recordings of electrocardiogram in response to a trauma-related cue as opposed to a resting state were performed and analyzed. The PTSD patients were asked to recount the presumed triggering traumatic event, and thecontrol subjects recounted a significant stressful negative life event. Results: Our results show that whereas the control subjects demonstrated significant autonomic responses to the stressogenic stimulus supplied by the recounting of a major stressful experience, the PTSD patients demonstrated almost no autonomic response to the recounting of the triggering stressful event, The PTSD patients demonstrated a degree of autonomic dysregulation at rest which was comparable to that seen in the control subjects' reaction to the stress model. Conclusions: Thelack of response to the stress model applied in the study appears to imply that PTSD patients experience so great a degree of autonomic hyperactivation at rest, that they are unable to marshal a further stressresponse to the recounting of the triggering trauma, as compared to control subjects. (C) 1998 Society of Biological Psychiatry.

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Documento generato il 05/04/20 alle ore 04:03:06