The roles of pain catastrophizing and anxiety in the prediction of postoperative pain intensity: a prospective study

OBJECTIVES

This study was a prospective investigation of the extent to which psychologic variables could be predictive of postoperative pain. Study aims were: 1) to evaluate whether an assessment of pre-operative distress factors could predict the intensity of postoperative pain; and 2) to characterize the unique pattern in which anxiety and pain catastrophizing scores relate to postoperative pain.

METHODS

The Pain Catastrophizing Scale and the State-Trait Anxiety Inventory were administered to 38 patients scheduled for elective abdominal surgery. The questionnaires were completed on the day of admission, a day before the operation. On day 1 and day 2 following the operation, perception of pain intensity at the surgical wound was assessed by visual analog scale.

RESULTS

The Pain Catastrophizing Scale and State-Trait Anxiety Inventory scores were significantly correlated with the postoperative pain scores. A linear regression analysis showed that Pain Catastrophizing Scale predicted the level of postoperative pain intensity even after controlling for state anxiety and that trait anxiety was not a significant predictor. In addition, analysis of the unique pattern of each predictor related to postoperative pain intensity indicated a linear curve for the Pain Catastrophizing Scale and curvilinear curve for the state anxiety.

DISCUSSION

The results are discussed in light of appraisal and coping theories. It is suggested that a simple assessment of preoperative catastrophizing tendency and anxiety scores may assist medical teams in postoperative pain management.

Catastrophizing labor pain compromises later maternity adjustments

OBJECTIVE

The purpose of this study was to evaluate the impact of labor pain intensity and labor pain catastrophizing on maternity blues and postpartum social functioning.

STUDY DESIGN

Pain intensity and pain catastrophizing were assessed in 89 women in active labor before the administration of analgesia. Both these measures were assessed again retrospectively 2 days after delivery in 82 women who had a spontaneous vaginal delivery. Women also filled out the Edinburgh Postnatal Depression Scale. Six weeks later women completed the social functioning domain of the short form SF36 health survey.

RESULTS

Pain catastrophizing during labor significantly predicted both maternity blues (P = .001) and postpartum social functioning (P = .001) when being controlled for maternal age and education, parity, type of analgesia, and labor pain intensity. Low level of education and younger age also contributed to the prediction of maternity blues and social functioning.

CONCLUSION

Labor pain catastrophizing rather than labor pain intensity predicts postpartum maternal adjustments.

The nature of touch in mothers experiencing maternity blues: the contribution of parity

BACKGROUND

Maternal touch (MT) is an essential part of the initial contact between the mother and her newborn and has developmental effects on the child. MT is known to be reduced in postpartum depression (PPD). The nature of MT in mothers experiencing maternity blues and the effect of parity are still unknown.

STUDY DESIGN

Seventy-five mothers were recruited from the ongoing series of deliveries.

SUBJECTS

The participating mothers were observed during interaction with their newborns on the second-day postpartum. Touching behavior was scored on-line according to the Touch Scoring Instrument, which includes nine types of MT. Mothers were categorized as exhibiting maternal blues according to Stein's depression scale.

OUTCOME MEASURE

Touch Scoring Instrument.

RESULTS

Primiparous mothers with blues avoided all types of touch whereas multiparous mothers with blues provided firm touch and holding. All mothers with blues avoided proprioceptive touch. Multiparous mothers without maternal blues provided various types of touch including affectionate holding and matter-of-fact touch whereas primiparous mothers without blues mostly provided holding.

CONCLUSIONS

Mothers with maternity blues on day 2 exhibited a pattern of MT similar to that known to characterize postpartum depression. Mothers without blues are able to provide developmental touch in a manner known to facilitate CNS stability and newborn adjustment to the extra-uterine world. Parity modulates the effect of maternity blues on MT and buffers the withdrawal effect of depression. Maternal touch could be used as a diagnostic tool for detection of mothers at risk in a timely manner. Touch interventions, which were previously demonstrated in PPD mothers, may be utilized in an earlier stage postpartum.

The effect of skin-to-skin contact (kangaroo care) shortly after birth on the neurobehavioral responses of the term newborn: a randomized, controlled trial

BACKGROUND

The method of skin-to-skin contact (kangaroo care [KC]) has shown physiologic, cognitive, and emotional gains for preterm infants; however, KC has not been studied adequately in term newborns.

AIMS

To evaluate the effect of KC, used shortly after delivery, on the neurobehavioral responses of the healthy newborn.

STUDY DESIGN

A randomized, controlled trial using a table of random numbers. After consent, the mothers were assigned to 1 of 2 groups: KC shortly after delivery or a no-treatment standard care (control group).

SUBJECTS

Included were 47 healthy mother-infant pairs. KC began at 15 to 20 minutes after delivery and lasted for 1 hour. Control infants and KC infants were brought to the nursery 15 to 20 and 75 to 80 minutes after birth, respectively.

RESULTS

During a 1-hour-long observation, starting at 4 hours postnatally, the KC infants slept longer, were mostly in a quiet sleep state, exhibited more flexor movements and postures, and showed less extensor movements.

CONCLUSIONS

KC seems to influence state organization and motor system modulation of the newborn infant shortly after delivery. The significance of our findings for supportive transition from the womb to the extrauterine environment is discussed. Medical and nursing staff may be well advised to provide this kind of care shortly after birth.

Massage therapy by mothers enhances the adjustment of circadian rhythms to the nocturnal period in full-term infants

The objective of this study was to investigate the effect of massage therapy on phase adjustment of rest-activity and melatonin secretion rhythms to the nocturnal period in full-term infants. Rest-activity cycles of infants (measurement 1, n = 16) were measured by actigraphy before and after 14 days of massage therapy (starting at age 10 [+/-4] d) and subsequently at 6 and 8 weeks of age. 6-Sulphatoxymelatonin excretion was assessed in urine samples at 6, 8, and 12 weeks of age (measurement 2, n = 21). At 8 weeks the controls revealed one peak of activity at approximately 12 midnight (11 p.m.-3 a.m.) and another one at approximately 12 noon (11 a.m.-3 p.m.), whereas in the treated group, a major peak was early in the morning (3 a.m.-7 a.m.) and a secondary peak in the late afternoon (3 p.m.-7 p.m.). At 12 weeks, nocturnal 6-sulphatoxymelatonin excretions were significantly higher in the treated infants (1346.38 +/- 209.40 microg/night vs 823.25 +/- 121.25 microg/night, respectively; <.05). It is concluded that massage therapy by mothers in the perinatal period serves as a strong time cue, enhancing coordination of the developing circadian system with environmental cues.

Massage therapy by mothers and trained professionals enhances weight gain in preterm infants

BACKGROUND

The method of "massage therapy" has consistently shown increased weight gain in preterm infants. The weight gain was apparent during massages administered by professionals.

AIMS

To replicate the results of increased weight gain in the course of "massage therapy" in preterm infants, and utilize a new, cost-effective application of this method by comparing maternal to nonmaternal administration of the therapy.

STUDY DESIGN

Random cluster design.

SUBJECTS

The study comprised 57 healthy, preterm infants assigned to three groups: two treatment groups--one in which the mothers performed the massage, and the other in which a professional female figure unrelated to the infant administered the treatment. Both these groups were compared to a control group.

RESULTS

Over the 10-day study period, the two treatment groups gained significantly more weight compared to the control group (291.3 and 311.3 vs. 225.5 g, respectively). Calorie intake/kg did not differ between groups.

CONCLUSIONS

Mothers are able to achieve the same effect size as that of trained professionals, allowing cost-effective application of the treatment within the neonatal intensive care unit.