Biomedical subjects

Jan Passchier

Publications and source records attributed to Jan Passchier.

39 records · Page 3Linked to original sources

PubMedDate not supplied

Patterns of pain variation related to myogenous temporomandibular disorders.

OBJECTIVES: Myogenous temporomandibular disorders are characterized by jaw muscle pain. The aims were: 1) to characterize this pain generally in terms of intensity, frequency, duration, and behavior across a period of 2 weeks; 2) to identify main intraday pain patterns and to examine whether subgroups of patients in this respect differed in clinical, demographic, pain and sleep variables, psychosocial factors, and use of medication; and 3) to investigate some possible interday trends of pain intensity at a group level. METHOD: One hundred thirty-three patients with myogenous temporomandibular disorders completed a 2-week diary, rating pain intensity (100 mm Visual Analog Scale [VAS]), duration, behavior (verbal 6-point scale), and medication use on 4 times of the day. Furthermore, questionnaires were completed to score pain period before seeking treatment, spread of pain, and demographic, psychosocial, and sleep variables. RESULTS: In the diary, pain intensity, frequency, daily pain duration, and the score of pain behavior were on average 29.1 mm, 69% of the scoring times, 5.5 hours, and 1.8 points (approaching "pain present, but I can ignore it at times"), respectively. Pain intensity was, on average, maximal late in the day (before dinner or bedtime) for the majority of patients (79%) and early in the day (before breakfast or lunchtime) for the minority (21%). The larger subgroup had a significantly higher daily pain intensity, more frequently a widespread pain and problems with falling asleep at bedtime, agreed more about the role of a physician as an external health locus of control, and had a more distancing coping style. Both subgroups were similar for other variables, most notably in the level of state anxiety and depressive mood, and in a sparse use (7.8% of all possible times) of over-the-counter medication. Daily mean VAS scores, averaged across patients, were approximately constant for the various diary days. Both the daily mean and maximal VAS score were not related to a specific day of the week. CONCLUSIONS: Two main daily pain patterns occur in patients with myogenous temporomandibular disorders (79%: maximal pain late in the day; 21%: early in the day), which might be related to differences in processes that influence pain sensitivity and patterns of jaw muscle activation. The interday similarities in pain level suggest that a sustained influence of counseling after the intake or an influence of a common behavioral pattern with a cycle duration of a week are not involved.

Adult↗

PubMedDate not supplied

Factors related to the quality of life in adolescents with chronic pain.

OBJECTIVE: This study examined the relationships between pain characteristics, psychosocial factors, and quality of life among adolescents with chronic pain that existed for at least 3 months, either recurrently (ie, pain with pain-free intervals) or continuously. METHODS: The authors conducted a cross-sectional study in 194 adolescents aged 12 to 18 years who completed questionnaires on pain, psychosocial factors (ie, vulnerability, reinforcement, modeling, and coping), and quality of life, and also kept a diary about their pain complaints for 3 weeks. RESULTS: Multiple hierarchical regression analysis revealed that psychosocial variables accounted for a significant variance in the adolescents' quality of life, even when controlling for pain characteristics. Analysis of the independent variables showed that pain intensity and vulnerability contributed significantly and uniquely to the variance of most quality-of-life domains. In addition, the authors found that emotion-focused avoidance coping strategies (ie, catastrophizing) strengthened the negative relation between pain intensity and psychological functioning. CONCLUSIONS: In addition to pain, psychosocial factors (vulnerability, reinforcement, modeling, and coping) are strongly associated with quality of life in adolescents with chronic pain. These results may contribute to psychological interventions focused on psychological adaptation in young pain patients to improve their quality of life.

Adolescent↗

PubMedDate not supplied

Parental decision-making after ultrasound diagnosis of a serious foetal abnormality.

OBJECTIVE: The purpose of this article is to provide clinicians who are involved in the field of foetal medicine with a comprehensive overview of theories that are relevant for the parental decision-making process after ultrasound diagnosis of a serious foetal abnormality. METHODS: Since little data are available of parental decision-making after ultrasound diagnosis of foetal abnormality, we reviewed the literature on parental decision-making in genetic counselling of couples at increased genetic risk together with the literature on general decision-making theories. The findings were linked to the specific situation of parental decision-making after an ultrasound diagnosis of foetal abnormality. RESULTS: Based on genetic counselling studies, several cognitive mechanisms play a role in parental decision-making regarding future pregnancies. Parents often have a binary perception of risk. Probabilistic information is translated into two options: the child will or will not be affected. The graduality of chance seems to be of little importance in this process. Instead, the focus shifts to the possible consequences for future family life. General decision-making theories often focus on rationality and coherence of the decision-making process. However, studies of both the influence of framing and the influence of stress indicate that emotional mechanisms can have an important and beneficial function in the decision-making process. CONCLUSION: Cognitive mechanisms that are elicited by emotions and that are not necessarily rational can have an important and beneficial function in parental decision-making after ultrasound diagnosis of a foetal abnormality. Consequently, the process of parental decision-making should not solely be assessed on the basis of its rationality, but also on the basis of the parental emotional outcome.

Abnormalities, Multiple↗