研究变异性心绞痛患者 ST 段抬高对心率变异性的影响。回顾性分析122例变异性心绞痛患者 ST 段抬高幅度及持续时间对心率变异性的影响;心率变异性与冠状动脉病变及病变支数、狭窄程度有相关性。结果心率变异性在 ST 段抬高≥0.4mv 患者中较 ST 段抬高<0.4mv 患者中明显降低(P<0.05);其在 ST 段抬高持续时间≥3min 患者中较 ST 段抬高持续时间<3min 患者中明显降低(P<0.05);其在冠状动脉狭窄≥50%患者中较冠状动脉狭窄<50%患者中明显降低(P<0.05);心率变异性在多支较单支病变明显降低(P <0.05),单支病变狭窄程度≥75%较50%~75%者明显降低(P<0.05)。提示变异性心绞痛患者自主神经系统受损程度与冠状动脉缺血严重程度,缺血持续时间密切相关,心率变异性能一定程度反映变异性心绞痛患者冠状动脉病变严重程度。 相似文献
Objective: The role of depression and quality of life on clinical outcomes of congestive heart failure (CHF) is well recognised. However, there are fewer studies investigating the prognostic role of subclinical psychological distress and well-being impairments. The aims of this study were to evaluate clinical/subclinical psychological distress and well-being in CHF outpatients, and the influence of these psychological factors on adverse cardiac events (re-hospitalisation, cardiac death), at 4-year follow-up.
Design: Sixty-eight CHF outpatients underwent psychological assessment at baseline and, after 4 years, information about cardiac events was collected in 60 patients by means of clinical records.
Main outcome measures: Psychological assessment included structured clinical interview for DSM (major/minor depression), Interview for diagnostic criteria for psychosomatic research (demoralisation), symptom questionnaire, psychological well-being scales.
Results: At follow-up, 39.7% of the baseline sample reported cardiovascular events (14 CHF-related re-hospitalisations and 13 cardiac deaths) and 5.9% other causes for death. Among the variables examined as potential risk factors for adverse cardiovascular outcomes, only hostility was significant, even after controlling for disease severity (hazard ratio = 2.38, 95%confidence interval: 1.04–5.45, p = .040).
Conclusion: In outpatients with CHF, psychological assessment should include both clinical and subclinical distress such as hostility, in order to better address psychological risk factors for cardiac outcomes. 相似文献
This paper focuses on an understudied aspect of Hobbes's natural philosophy: his approach to the domain of life. I concentrate on the role assigned by Hobbes to the heart, which occupies a central role in both his account of human physiology (which he names ‘vital motion’) and of the origin of animal locomotion (‘animal or voluntary motion’). With this, I have three goals in mind. First, I aim to offer a cross-section of Hobbes's effort to provide a mechanistic picture of human life. Second, I aim to contextualize Hobbes's views in the seventeenth-century debates on human physiology and animal locomotion. In particular, I will compare Hobbes's views with the theories put forth by Harvey, Descartes, the Galenic, and Peripatetic traditions. Also, I will show that Hobbes was receptive to advances within contemporary English physiology and chemistry. Third, by means of a comparison with Descartes, I advance some hypothesis to explain why Hobbes indentified the heart, and not the brain (as was increasingly common in his day), as the organ originating animal locomotion. In this regard, I trace out some possible implications of Hobbes's views on human physiology and locomotion for his psychology and political philosophy. 相似文献
Background and objectives: Anxiety disorders comprise the most common category of mental illness among US young adults. Art making might be one method to help reduce anxiety, but the few studies investigating this have used only subjective measures of anxiety. Design: This study employed both subjective (self-reported state anxiety from the State-Trait Anxiety Inventory) and objective (heart rate variability) measures to assess whether 30-minute periods of art making reduced anxiety in 47 first-year college students prior to their final examinations. Methods: Students participated in free-form painting, mandala coloring, clay modeling, and control sessions. Results: Repeated-measures ANOVA with post hoc analysis revealed significantly greater pre- to post-session reductions in anxiety for all three types of art-making sessions than for the control session, as measured objectively. Measured subjectively, only free-form painting yielded a significant decrease in anxiety compared to the control session. Conclusions: Given the health benefits of anxiety reduction, further study is warranted to determine the duration of art making's anxiety-reducing effect. 相似文献
Temperament, i.e. individual differences in reactivity and self-regulation, emerges early in infancy; might temperament originate during fetal development? Mixed findings and methodological issues in the literature examining this consideration limit our understanding of the continuity between these fetal indices and infant temperament. The primary aims of the current study were to improve on published studies by (a) using standardized and well-accepted fetal cardiac (actocardiograph) and infant temperament measures (the Infant Behavior Questionnaire—Revised; IBQ-R) (b) expanding fetal assessments to include coupling (the cross correlation of heart rate with movement), and (c) examining a diverse sample to determine if findings of associations between fetal neurobehavior and infant temperament generalize beyond cohorts that are demographically well-resourced and predominantly white. Building on theory and empirical findings, we hypothesized that (1) FHR would be positively associated with Surgency and Negative Affectivity, (2) FHRV would be positively associated with Surgency, and Regulation/Orienting and inversely associated with Negative Affectivity, and (3) fetal coupling would be positively associated with Regulation/Orienting and Surgency and inversely associated with Negative Affectivity. We collected 20 min of fetal data (m gestational age = 34.42 weeks) and mothers completed the IBQ-R (n = 90 women; 60 % non-Caucasian race; 63 % Latina ethnicity). We found that FHR was positively associated with Negative Affectivity but not associated with Surgency (or Regulation/Orienting). FHRV was inversely associated with Surgency but not associated with Negative Affectivity or Regulation/Orienting. Coupling was positively associated with Regulation/Orienting and Surgency but not associated with Negative Affectivity. Our findings, from a more diverse sample and with established measures, provide further evidence that individual differences in reactivity and regulation can be identified in the in-utero period and show theory-based continuity to specific infant temperament constructs. 相似文献
Objectives: The present study examined relationships among gaze behaviour and cardiac vagal tone using a novel stress-inducing task.Methods: Participants’ (N?=?40) eye movements and heart rate variability (HRV) were measured during an unsolvable computer-based task randomly presenting feedback of “Right” and “Wrong” answers distinctly onscreen after each trial. Subgroups were created on the basis of more frequent eye movements to the right (“Correct”-Attenders; n?=?23) or wrong (“Incorrect”-Attenders; n?=?17) areas onscreen.Results: Correct-Attenders maintained HRV from baseline to the stress task. In contrast, Incorrect-Attenders spent significantly more time viewing “Wrong” feedback, exhibited a reduction in HRV during the stress condition (p?.01), and were more likely to negatively self-evaluate performance.Conclusions: Results demonstrate that pervasive attention to negative feedback (“Wrong”) elicits perseverative stress and negative self-evaluations among university students. This study highlights the potential for studying attentional biases and emotional distress through combined measures of gaze behaviour and cardiac vagal tone. 相似文献