The propensity to acquire and retain conditioned fear responses may contribute to the risk of developing and maintaining posttraumatic stress disorder (PTSD) following a traumatic event. There is growing evidence that the gonadal hormones estrogen and progesterone are associated with how well women retain extinction of previously conditioned fear responses. Thus, sex steroid effects may contribute to the increased prevalence of PTSD in women. For the current study, 32 nonmedicated female trauma survivors with and without PTSD completed a differential fear conditioning task both during the early follicular phase of the menstrual cycle when estradiol and progesterone levels are low, and during the midluteal phase when estradiol and progesterone levels are high. Skin conductance served as the measure of conditioned fear. Women with PTSD, compared to those without, showed impaired retention of extinction learning in the midluteal phase of the menstrual cycle. Therefore, the impact of menstrual phase on extinction retention may differ between women with and without PTSD. These findings raise potential considerations regarding the coordination of psychopharmacologic and trauma exposure-based treatments for PTSD with specific phases of the menstrual cycle.
Little is known about quality of life (QOL) of patients with pancreatic cancer and their caregivers compared with adults with other cancers. This systematic review summarizes the available evidence base, identifies its limitations, and recommends directions for research and clinical application. A systematic review was conducted of research on QOL in adults with pancreatic cancer and their caregivers. Quality of life was examined in the following specific domains: psychological, physical, social, sexual, spiritual, and general. Of the 7130 articles reviewed, 36 studies met criteria for inclusion. Compared with healthy adults or population norms, adults with pancreatic cancer had worse QOL across all domains. Compared with patients with other cancer types, patients with pancreatic cancer evidenced worse psychological QOL. Physical and social QOL were either similar or more compromised than in patients with other cancers. Limited data preclude conclusions about sexual, spiritual, and caregiver QOL. Patients with pancreatic cancer evidence decrements in multiple QOL domains, with particular strain on psychological well-being. Methodological limitations of available studies restrict definitive conclusions. Future research with well-defined samples, appropriate statistical analyses, and longitudinal designs is needed. Findings from this review support the merits of distress screening, integration of mental health professionals into medical teams, and attention to caregiver burden.
Background Few studies examine whether dispositional approach and avoidance coping and stressor-specific coping strategies differentially predict physical adjustment to cancer-related stress. Purpose This study examines dispositional and situational avoidance and approach coping as unique predictors of the bother women experience from physical symptoms after breast cancer treatment, as well as whether situational coping mediates the prediction of bother from physical symptoms by dispositional coping. Method Breast cancer patients (N=460) diagnosed within the past 3 months completed self-report measures of dispositional coping at study entry and of situational coping and bother from physical symptoms every 6 weeks through 6 months. Results In multilevel structural equation modeling analyses, both dispositional and situational avoidance predict greater symptom bother. Dispositional, but not situational, approach predicts less symptom bother. Supporting mediation models, dispositional avoidance predicts more symptom bother indirectly through greater situational avoidance. Dispositional approach predicts less symptom bother through less situational avoidance. Conclusion Psychosocial interventions to reduce cancer-related avoidance coping are warranted for cancer survivors who are high in dispositional avoidance and/or low in dispositional approach.
Most research on posttraumatic stress disorder (PTSD) relies on clinician-administered interview and self-report measures to establish the presence/absence and severity of the disorder. Accurate diagnosis of PTSD is made challenging by the presence of symptoms shared with other psychopathologies and the subjective nature of patients' descriptions of their symptoms. A physiological assessment capable of reliably "diagnosing" PTSD could provide adjunctive information that might mitigate these diagnostic limitations. In the present study, we examined the construct validity of a potential psychophysiological measure of PTSD, that is, psychophysiological reactivity to script-driven imagery (SDI-PR), as measured against the current diagnostic "gold-standard" for PTSD, the Clinician-Administered PTSD Scale (CAPS). Convergent and predictive validity and stability were examined. Thirty-six individuals completed an SDI-PR procedure, the CAPS, and self-report measures of mental and physical health at their initial visit and approximately 6 months later. SDI-PR and the CAPS demonstrated excellent stability across measurement occasions. SDI-PR showed moderately strong convergent validity with the CAPS. After adjusting for self-reported depression, predictive validity for the CAPS, with regard to health sequelae, was reduced, whereas it remained mostly unchanged for SDI-PR. Findings support SDI-PR as a valid and stable measure of PTSD that captures a pathophysiologic process in individuals with PTSD. Results are discussed with regard to the research domain criteria framework.
Breast cancer patients often experience adverse physical side effects of medical treatments. According to the biobehavioral model of cancer stress and disease, life stress during diagnosis and treatment may negatively influence the trajectory of women’s physical health-related adjustment to breast cancer. This longitudinal study examined chronic and episodic stress as predictors of bothersome physical symptoms during the year after breast cancer diagnosis. Women diagnosed with breast cancer in the previous 4 months (N = 460) completed a life stress interview for contextual assessment of chronic and episodic stress severity at study entry and 9 months later. Physical symptom bother (e.g., pain, fatigue) was measured at study entry, every 6 weeks through 6 months, and at nine and 12 months. In multilevel structural equation modeling (MSEM) analyses, both chronic stress and episodic stress occurring shortly after diagnosis predicted greater physical symptom bother over the study period. Episodic stress reported to have occurred prior to diagnosis did not predict symptom bother in MSEM analyses, and the interaction between chronic and episodic stress on symptom bother was not significant. Results suggest that ongoing chronic stress and episodic stress occurring shortly after breast cancer diagnosis are important predictors of bothersome symptoms during and after cancer treatment. Screening for chronic stress and recent stressful life events in the months following diagnosis may help to identify breast cancer patients at risk for persistent and bothersome physical symptoms. Interventions to prevent or ameliorate treatment-related physical symptoms may confer added benefit by addressing ongoing non-cancer-related stress in women’s lives.
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