Cognitive responses and the control of post-operative pain

Presurgery psychological factors predict pain, nausea, and fatigue one week after breast cancer surgery

Before scheduled surgery, breast cancer surgical patients frequently experience high levels of distress and expect a variety of postsurgery symptoms. Previous literature has supported the view that presurgery distress and response expectancies are predictive of postsurgery outcomes. However, the contributions of distress and response expectancies to postsurgical side effect outcomes have rarely been examined together within the same study. Furthermore, studies on the effects of response expectancies in the surgical setting have typically focused on the immediate postsurgical setting rather than the longer-term setting. The purpose of the present study was to test the contribution of presurgery distress and response expectancies to common postsurgery side effects (pain, nausea, and fatigue). Female patients (n=101) undergoing breast cancer surgery were recruited to a prospective study. Results indicated that presurgery distress uniquely contributed to patients' postsurgery pain severity (P<0.05) and fatigue (P<0.003) one week after surgery. Response expectancies uniquely contributed to pain severity (P<0.001), nausea (P<0.012), and fatigue (P<0.010) one week after surgery. Sobel tests indicated that response expectancies partially mediated the effects of distress on pain severity (P<0.03) and fatigue (P<0.03). Response expectancies also mediated the effects of age on pain severity, nausea, and fatigue. Results highlight the contribution of presurgery psychological factors to postsurgery side effects, the importance of including both emotional and cognitive factors within studies as predictors of postsurgery side effects, and suggest presurgical clinical targets for improving patients' postoperative experiences of side effects.

Effect of informational internet web pages on patients' decision-making: randomised controlled trial regarding choice of spinal or general anaesthesia for orthopaedic surgery

This study explored whether patients' preference for particular types of anaesthesia could be influenced pre-operatively by giving them the addresses of various relevant websites. Patients at an orthopaedic pre-assessment education clinic completed a questionnaire, which included a short multiple-choice general knowledge quiz about anaesthesia, and also questioned them as to their choice of anaesthesia (general or neuraxial). Patients were randomly assigned to intervention or control groups. Intervention group members were given the addresses of three relevant anaesthesia and health related websites to access at home. All patients were asked to complete the questionnaires on a second occasion, before surgery. Initially, most patients stated a preference for general anaesthesia. Subsequently, the intervention group altered their preference towards neuraxial anaesthesia compared to the control group (p < or = 0.0001). The increase in median (IQR [range]) anaesthesia knowledge test score was greater in the intervention group (from 10.0 (9.0-12.0 [5.0-14.0]) to 13.0 (11.0-14.0 [6.0-14.0])) than in the control group (from 10.0 (9.0-11.5 [3.0-13.0]) to 11.0 (9.0-12.0 [4.0-14.0]); p = 0.0068).

Mediators of a brief hypnosis intervention to control side effects in breast surgery patients: response expectancies and emotional distress

OBJECTIVE

The present study was designed to test the hypotheses that response expectancies and emotional distress mediate the effects of an empirically validated presurgical hypnosis intervention on postsurgical side effects (i.e., pain, nausea, and fatigue).

METHOD

Women (n = 200) undergoing breast-conserving surgery (mean age = 48.50 years; 63% White, 15% Hispanic, 13% African American, and 9% other) were randomized to a hypnosis or to an attention control group. Prior to surgery, patients completed assessments of hypothesized mediators (response expectancies and emotional distress), and following surgery, patients completed assessments of outcome variables (pain, nausea, and fatigue).

RESULTS

Structural equation modeling revealed the following: (a) Hypnotic effects on postsurgical pain were partially mediated by pain expectancy (p < .0001) but not by distress (p = .12); (b) hypnotic effects on postsurgical nausea were partially mediated by presurgical distress (p = .02) but not by nausea expectancy (p = .10); and (c) hypnotic effects on postsurgical fatigue were partially mediated by both fatigue expectancy (p = .0001) and presurgical distress (p = .02).

CONCLUSIONS

The results demonstrate the mediational roles of response expectancies and emotional distress in clinical benefits associated with a hypnotic intervention for breast cancer surgical patients. More broadly, the results improve understanding of the underlying mechanisms responsible for hypnotic phenomena and suggest that future hypnotic interventions target patient expectancies and distress to improve postsurgical recovery.

Presurgery distress and specific response expectancies predict postsurgery outcomes in surgery patients confronting breast cancer

Prior to scheduled surgery, patients frequently experience particularly high levels of distress and expect a variety of postsurgery symptoms. Surgery patients who confront breast cancer are no exception. It has been suggested that such presurgery distress and response expectancies are predictive of postsurgery outcomes. To test the contribution of presurgery distress and expectancies to common postsurgery symptom outcomes (pain, nausea, fatigue, and discomfort), 63 female patients undergoing breast cancer surgery were recruited to a prospective study. Results indicated that presurgery distress uniquely contributed to patients' postsurgery nausea, fatigue, and discomfort; specific expectancies uniquely contributed to pain intensity, pain unpleasantness, and fatigue (ps < .05). Consistent with expectancy theory, associations between response expectancies and postsurgery outcomes were not due to presurgery distress.

Information and its impact on satisfaction among surgical patients

This study investigates the association between patient characteristics, reported problems with obtaining information and global evaluations of care among surgical patients. Using data from a large scale study of hospital care, a factor analysis of 30 information-relevant items was conducted with data from a sample of 3602 surgical patients; and correlation and multiple regression analyses were conducted to identify the relationships among information, patient characteristics and global evaluations of care. Path analysis was also used to determine the extent to which perceived control mediates the information evaluation relationship. Four information factors were identified: surgical information, recovery information, general information and sensory information, and each was significantly related to global evaluations. Desire for involvement interacted with information received in determining patients' evaluations; and partial support was found for perceived control as a mediator of the information evaluation link. The data indicate that the relationship between information and evaluations of quality is generalizable across patients, conditions and hospitals; and should be defined more broadly to include that which is given by a variety of providers. to family, and about medications and home recovery. Desire for involvement and perceived control must also be considered in understanding the value and impact of information.

[Frequency, intensity, development and repercussions of postoperative pain as a function of the type of surgery]

Type of surgery is the most important factor conditioning intensity and duration of postoperative pain. Thoracic and spinal surgery are the most painful procedures. Abdominal, urologic and orthopedic surgery lead to severe postoperative pain. Duration of severe pain rarely exceeds 72 hours. Mobilization increases pain intensity after abdominal, thoracic and orthopaedic surgery. Pain could occur after daycase minor surgical procedures and is often underestimated. Postoperative complications related to pain are difficult to disclose because of the interposition of the direct effects of analgesic treatments. Respiratory and cardiovascular postoperative complications are unrelated to postoperative pain in healthy subjects. This could be different in high risk patients. The surgical procedure is the major determinant of metabolic and psychologic postoperative deterioration. Adequate pain relief allows postoperative rehabilitation and physiotherapy programmes after abdominal and orthopaedic surgery. This could be expected to reduce hospital stay and improve convalescence.

The development and testing of the well-being index for surgical patients (WISP)

The development and testing of the Well-being Index for Surgical Patients (WISP), an instrument designed to assess the well-being of patients between 1 and 4 months after abdominal surgery, is described. The measure was intended for use in a study of the effectiveness of a dietary supplement for patients undergoing such surgery. Interviews were conducted with 15 patients who had had abdominal operations between 1 and 4 months previously. They provided information about their well-being at the time of their interview and also during the period since they had been discharged from hospital. A draft questionnaire was derived from the interviews and field tested with a further 17 patients who found the content to be relevant and the questionnaire easy to complete. A further 44 patients completed the measure on three occasions; 1, 2 and 4 months after abdominal surgery. The instrument was shown to have good internal consistency and produced statistically significant improvements in well-being over time. A postal survey with 20 patients indicated that the instrument's test-retest reliability was adequate. The WISP is acceptable to patients and easy to administer, making it suitable for inclusion in clinical trials.

Coping with labor pain

This exploratory study aimed to examine the nature, origin, and effectiveness of pain coping strategies used during childbirth. The labor pain of 51 British women was assessed around the time of birth by visual analogue scales and the McGill Pain Questionnaire. The use of pain coping strategies and their origins was established through the analysis of data obtained in an extended semi-structured interview. Subjects were found to use a range of strategies during labor, many of which they had previously used to cope with pain. The nature of these strategies was, in essence, similar to that described in the empirical literature on pain coping, though it appeared that strategies had often been acquired informally as well as through structured training. The total number of strategies used in labor was negatively correlated with levels of labor pain.

Preparing patients for invasive medical and surgical procedures. 1: Adding behavioral and cognitive interventions

The authors of three related articles look at various aspects of preparing adult and child patients psychologically for invasive surgical procedures. The first article is a review of the literature in the field, primarily from the last 30 years. Researchers have examined anxiety and coping mechanisms, patient-practitioner relationships, medical phobias, and the effectiveness of different types of psychological intervention. In the second article, the authors offer practical suggestions for implementing preparatory psychological interventions, describing effective communication techniques such as active listening, role plays, imaging, modeling, and progressive relaxation. In the final article in the series, the author considers policy, practice, and educational implications of the use of behavioral and cognitive interventions for patients, medical practitioners, and healthcare planners.