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Persistent Reduction of Default Mode Network Connectivity After Combat Stress [Meeting Abstract]
van Wingen, Guido; Geuze, Elbert; Beckmann, Christian; Denys, Damiaan; Vermetten, Eric; Fernandez, Guillen
ISI:000318671800216
ISSN: 0006-3223
CID: 1507312
Longitudinal Plasma Testosterone Trajectory and its Relation to Combat and PTSD [Meeting Abstract]
Vermetten, Eric
ISI:000318671800291
ISSN: 0006-3223
CID: 1507302
Sympathetic Activity and Hypothalamo-Pituitary-Adrenal Axis Activity During Sleep in Post-Traumatic Stress Disorder: A Study Assessing Polysomnography with Simultaneous Blood Sampling [Meeting Abstract]
van Liempt, Saskia; Arends, Johan; Cluitmans, Pierre; Kahn, Rene; Vermetten, Eric
ISI:000318671800292
ISSN: 0006-3223
CID: 1507292
Impact of impaired sleep on the development of PTSD symptoms in combat veterans: a prospective longitudinal cohort study
van Liempt, Saskia; van Zuiden, Mirjam; Westenberg, Herman; Super, Arvika; Vermetten, Eric
BACKGROUND: A significant proportion of soldiers return from deployment with symptoms of fatigue, sleep difficulties, and posttraumatic complaints. Disrupted sleep has been proposed as a contributing factor for the development of posttraumatic stress disorder (PTSD). This study investigates the impact of impaired sleep and nightmares before deployment on the development of PTSD symptoms. METHOD: We collected reports on insomnia symptoms and nightmares in 453 Dutch service members prior to military deployment to Afghanistan. PTSD symptoms were assessed at 6 months postdeployment. The predictive value of insomnia symptoms and nightmares on the development of PTSD symptoms was assessed with a logistic regression analyses, in which was controlled for predeployment mood and anxiety symptoms. RESULTS: Self-reported predeployment nightmares predicted PTSD symptoms at 6 months (odds ratio 2.992, 95% confidence interval (CI) 1.096-8.551, P < .05), while predeployment insomnia complaints did not (odds ratio 0.976, 95% CI 0.862-1.155, P > .05). CONCLUSION: In conclusion, this prospective longitudinal cohort study indicates that the existence of predeployment nightmares is associated with an increased risk for the development of PTSD symptoms. Nightmares may be related to hampered fear extinction memory consolidation, which has been associated with REM sleep.
PMID: 23389990
ISSN: 1091-4269
CID: 1469872
Police officers: a high-risk group for the development of mental health disturbances? A cohort study
van der Velden, Peter G; Rademaker, Arthur R; Vermetten, Eric; Portengen, Marie-Anne; Yzermans, Joris C; Grievink, Linda
OBJECTIVES: Policing is generally considered a high-risk profession for the development of mental health problems, but this assumption lacks empirical evidence. Research question of the present study is to what extent mental health disturbances, such as (very) severe symptoms of anxiety, depression and hostility are more prevalent among police officers than among other occupational groups. DESIGN: Multicomparative cross-sectional study using the data of several cross-sectional and longitudinal studies in the Netherlands. PARTICIPANTS: Two samples of police officers (N=144 and 503), employees of banks (N=1113) and employees of banks who were robbed (N=144); employees of supermarkets (N=335), and a psychiatric hospital (N=219), employees of a governmental social welfare organisation (N=76), employees who followed a training based on rational-motive therapy to strengthen their assertiveness (N=710), soldiers before deployment (N=278) and before redeployment (N=236) and firefighters (N=123). The numbers refer to respondents with complete data. PRIMARY OUTCOMES: Prevalence of severe (subclinical level) and very severe symptoms (clinical level) were computed using the Dutch norm tables (80th percentile and 95th percentile, respectively) of the Symptom Check List Revised (SCL-90-R). All comparisons were controlled for age, gender and education. RESULTS: Multivariate logistic regression and analyses showed that the prevalence of clinical and subclinical levels of symptoms of anxiety, depression and hostility among police officers were not significantly higher than among comparison groups. The same pattern was found for the other SCL-90-R subscales. CONCLUSIONS: We found no indications that self-reported mental health disturbances were more prevalent among police officers than among groups of employees that are not considered high-risk groups, such as employees of banks, supermarkets, psychiatric hospital and soldiers before deployment.
PMCID:3563131
PMID: 23355659
ISSN: 2044-6055
CID: 1469882
Sympathetic activity and hypothalamo-pituitary-adrenal axis activity during sleep in post-traumatic stress disorder: a study assessing polysomnography with simultaneous blood sampling
van Liempt, Saskia; Arends, Johan; Cluitmans, Pierre J M; Westenberg, Herman G M; Kahn, Rene S; Vermetten, Eric
BACKGROUND: Nightmares and insomnia in PTSD are hallmark symptoms, yet poorly understood in comparison to the advances toward a biological framework for the disorder. According to polysomnography (PSG), only minor changes in sleep architecture were described. This warrants alternative methods for assessing sleep regulation in PTSD. METHODS: After screening for obstructive sleep apnea and period limb movement disorder, veterans with PTSD (n=13), trauma controls (TCs, n=17) and healthy controls (HCs, n=15) slept in our sleep laboratory on two consecutive nights with an IV catheter out of which blood was sampled every 20min from 22:00h to 08:00h. Nocturnal levels of plasma adrenocorticotropic hormone (ACTH), cortisol, melatonin were assessed in conjunction with PSG registration, as well as subjective sleep parameters. RESULTS: PTSD patients showed a significant increase in awakenings during sleep in comparison to both control groups. These awakenings were correlated with ACTH levels during the night, and with the subjective perception of sleep depth. Also, heart rate (HR) was significantly increased in PTSD patients as compared with both control groups. The diurnal regulation of ACTH, cortisol and melatonin appeared undisturbed. PTSD patients exhibited lower cortisol levels at borderline significance (p=0.056) during the first half of the night. ACTH levels and cortisol levels during the first half of the night were inversely related to slow wave sleep (SWS). CONCLUSION: This study suggests that hypothalamo-pituitary-adrenal (HPA) axis activity is related to sleep fragmentation in PTSD. Also, activity of the sympathetic nervous system (SNS) is increased during sleep in PTSD. Further research is necessary to explore the potential causal relationship between sleep problems and the activity of the HPA-axis and SNS in PTSD.
PMID: 22776420
ISSN: 0306-4530
CID: 1469902
Psychotraumatology in the Netherlands
Vermetten, Eric; Olff, Miranda
The contribution to psychotrauma literature from Dutch authors has a long tradition. The relatively high lifetime prevalence of trauma and posttraumatic stress disorder (PTSD) is not unique for the Netherlands and does not fully explain the interest in trauma and its consequences. In this overview of psychotraumatology in the Netherlands, we will discuss some of the key events and processes that contribute to the current interest. We outlined the historical basis and development of the field in the Netherlands, including the impact of World War II, the effects of major man-made or natural disasters, engagement in military conflicts, as well as smaller scale traumatic events like sexual abuse and traffic accidents. The liberal and open culture may have reduced stigma to trauma, while other sociocultural aspects may have contributed to increased prevalence. Finally, we describe Dutch psychotraumatology today and how history and culture have shaped the current scientific basis.
PMCID:3644061
PMID: 23671764
ISSN: 2000-8066
CID: 1469852
The effect of military motion-assisted memory desensitization and reprocessing treatment on the symptoms of combat-related post traumatic stress disorder: first preliminary results
Vermetten, Eric; Meijer, Lydia; van der Wurff, Peter; Mert, Agali
Although the symptoms of Post-Traumatic Stress Disorder (PTSD) in the general and military population seem very similar, combat-related PTSD (cr-PTSD) is typically thought to be more severe due to the repeated and prolonged exposure of traumatic events. Therapeutic adherence is reported a problem in military populations compromising treatment efficacy. Therefore, a new potential supplementary treatment is specially designed for patients with cr-PTSD. This intervention is called Military Motion Memory Desensitization and Reprocessing (3MDR). The treatment incorporates key elements of successful treatments as Virtual Reality Exposure (VRE) and Eye Movement Desensitization Reprocessing (EMDR) and adds motion to the condition. We aimed at designing a treatment procedure that preserved dual task processing principle, yet introduced new engagement by performing the desensitization during motion by to walking on a treadmill. Moreover, we aimed at exposure to real high-affect pictures of deployment setting. Subjects walk a repetitive cycle while walking and viewing high affect pictures of deployment scenes. Dual task processing was maintained by an oscillating ball. Aspects of presence are adhered to, to maximize possible positive outcome. METHOD: Two veterans with chronic PTSD, received four weekly sessions of 3MDR therapy. The indicator of effectiveness was difference in CAPS (Clinical Administrated PTSD Scale)-score. The treatment was designed on the Computer Assisted Rehabilitation Environment (CAREN) facility. RESULTS: The 3MDR treatment did further decrease PTSD symptoms. Patients were highly satisfied about the treatment and had no attention to drop out. CONCLUSION: The results of the two cases suggest that the 3MDR treatment is a successful, more additional treatment that goes further into the patients affect where other treatment may stagnate. The presence was highly appreciated. Further research with more patients needs to be performed to obtain more reliable results.
PMID: 23792857
ISSN: 0926-9630
CID: 1469912
Dissociative disorders in DSM-5
Spiegel, David; Lewis-Fernandez, Roberto; Lanius, Ruth; Vermetten, Eric; Simeon, Daphne; Friedman, Matthew
The rationale, research literature, and proposed changes to the dissociative disorders and conversion disorder in the fifth edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM-5) are presented. Dissociative identity disorder will include reference to possession as well as identity fragmentation, to make the disorder more applicable to culturally diverse situations. Dissociative amnesia will include dissociative fugue as a subtype, since fugue is a rare disorder that always involves amnesia but does not always include confused wandering or loss of personality identity. Depersonalization disorder will include derealization as well, since the two often co-occur. A dissociative subtype of posttraumatic stress disorder (PTSD), defined by the presence of depersonalization or derealization in addition to other PTSD symptoms, is being recommended, based upon new epidemiological and neuroimaging evidence linking it to an early life history of adversity and a combination of frontal activation and limbic inhibition. Conversion disorder (functional neurological symptom disorder) will likely remain with the somatic symptom disorders, despite considerable dissociative comorbidity.
PMID: 23394228
ISSN: 1548-5943
CID: 1469892
Psychotrauma research in the Netherlands
Olff, Miranda; Vermetten, Eric
PMCID:3644054
PMID: 23671758
ISSN: 2000-8066
CID: 1469862