“Ow!”: Spontaneous Verbal Pain Expression Among Young Children During Immunization

Crying out in pain-A systematic review into the validity of vocalization as an indicator for pain

BACKGROUND

Vocalization is often used to assess pain, sometimes combined with other behaviours such as facial expressions. Contrary to facial expressions, however, for vocalization, there is little evidence available on the association with pain. The aim of this systematic review was to critically analyse the association between vocalization and pain, to explore if vocalizations can be used as a "stand-alone" indicator for pain.

METHODS

The search was performed according to the Prisma Guidelines for systematic reviews and meta-analysis. The following terms were used: "Pain Measurement," "Vocalization" and "Verbalization." The study population included verbal and non-verbal individuals, including older people and children. The search was performed in three different databases: PubMed, Embase and CINAHL. A total of 35 studies were selected for detailed investigation. Quality assessments were made using two grading systems: Grading of Recommendations Assessment Development and Evaluation system and the Newcastle-Ottawa scale.

RESULTS

An association between vocalization and pain was found in most studies, particularly when different types of vocalizations were included in the investigation. Different types of vocalization, but also different types of pain, shape this association. The association is observed within all groups of individuals, although age, amongst others, may have an influence on preferred type of vocalization.

CONCLUSIONS

There is an association between vocalization and pain. However, vocalization as a "stand-alone" indicator for pain indicates only a limited aspect of this multifactorial phenomenon. Using vocalization as an indicator for pain may be more reliable if other pain indicators are also taken into account.

SIGNIFICANCE

Vocalizations are frequently used in pain scales, although not yet thoroughly investigated as a "single indicator" for pain, like, e.g. facial expression. This review confirms the role of vocalizations in pain scales, and stresses that vocalizations might be more reliable if used in combination with other pain indicators.

How parents make sense of their young children's expressions of everyday pain: a qualitative analysis

BACKGROUND

Little is known about the communication of everyday pain between young children and their parents, i.e. when children experience pain resulting from minor injury or illness that occur in everyday life. This study aimed to gain an in-depth understanding of how parents make sense of their young children's expression of everyday pains and how they respond.

METHODS

Parents (n = 48) of children (1-5 years inclusive) participated in focus group discussions at seven children's centres across England where they were asked to describe their children's communication of everyday pain. Thematic analysis was used to analyse the data.

RESULTS

Six main themes were identified in the parents' discourse. Parents described children's pain communication as (1) sharing common elements, but unique to each child; (2) having multifaceted pain and non-pain-related purposes; (3) challenging to interpret; (4) influenced by their own pain-related communication; (5) requiring a variety of pharmacological, psychological and physical strategies to manage. The sixth theme that emerged from the data related to parents' dissatisfaction with health care providers, particularly general practitioners' sometimes quick dismissal of parental concerns about their children's pain and illness complaints.

CONCLUSIONS

These findings suggest that parents have well developed, although personal, ways of recognizing and responding to their children's communication of pain, but also experience uncertainty in their judgments. Parents would benefit from information about the developmental aspects of pain and should be included as active partners in their children's pain assessment and management.

Knowledge and attitudes regarding pediatric pain in Mongolian nurses

The World Health Organization and the International Association for Study of Pain cite the significance of pediatric pain as a significant global health issue. Developing countries may have increased needs compared with developed countries because of limited resources and lack of training. In Mongolia a paucity of data exist regarding nursing knowledge of pediatric pain management. The purpose of this project was to assess the current knowledge of pediatric pain and to assess the effectiveness of educational intervention on improving knowledge and attitudes of pediatric nurses working at a major children's hospital in Mongolia. Knowledge and attitudes of Mongolian nurses were evaluated before and after a 2-hour educational intervention. The translated Modified Mongolian Pediatric Nurses' Knowledge and Attitudes Survey Regarding Pain-Shriner's Revision survey was used as a pre- and postintervention assessment instrument with local nurses at a pediatric hospital in Ulaanbaatar, Mongolia. One hundred sixty-seven nurses attended the conference, with 155 nurses completing the pre- and postsurveys. The mean score on the presurvey was 12.7 out of 35 (26.4% correct), whereas the mean score on the postsurvey score was 16.7 out of 35 (47.8% correct). A paired t test showed a significant statistical difference between scores (p < .0001). Pediatric nurses in Mongolia demonstrate insufficient knowledge of pediatric pain management. The educational intervention was effective in improving pediatric pain knowledge and attitudes in Mongolian nurses. It is recommended to establish similar educational endeavors with nurses around the world to improve pain knowledge and attitudes.

The impact of language on the expression and assessment of pain in children

This paper focuses on the importance of language in the expression of pain. Variation in definitions of pain is presented, together with a review of the evidence examining the impact language may have on the way pain is expressed linguistically. The implications for conducting research with children who speak different languages are explored. Strategies such as using non-linguistic methods of communication, additional time required for conducting interviews and the inclusion of research team members from the same ethnic or linguistic background are presented.

A systematic review of faces scales for the self-report of pain intensity in children

CONTEXT

Numerous faces scales have been developed for the measurement of pain intensity in children. It remains unclear whether any one of the faces scales is better for a particular purpose with regard to validity, reliability, feasibility, and preference.

OBJECTIVES

To summarize and systematically review faces pain scales most commonly used to obtain self-report of pain intensity in children for evaluation of reliability and validity and to compare the scales for preference and utility.

METHODS

Five major electronic databases were systematically searched for studies that used a faces scale for the self-report measurement of pain intensity in children. Fourteen faces pain scales were identified, of which 4 have undergone extensive psychometric testing: Faces Pain Scale (FPS) (scored 0-6); Faces Pain Scale-Revised (FPS-R) (0-10); Oucher pain scale (0-10); and Wong-Baker Faces Pain Rating Scale (WBFPRS) (0-10). These 4 scales were included in the review. Studies were classified by using psychometric criteria, including construct validity, reliability, and responsiveness, that were established a priori.

RESULTS

From a total of 276 articles retrieved, 182 were screened for psychometric evaluation, and 127 were included. All 4 faces pain scales were found to be adequately supported by psychometric data. When given a choice between faces scales, children preferred the WBFPRS. Confounding of pain intensity with affect caused by use of smiling and crying anchor faces is a disadvantage of the WBFPRS.

CONCLUSIONS

For clinical use, we found no grounds to switch from 1 faces scale to another when 1 of the scales is in use. For research use, the FPS-R has been recommended on the basis of utility and psychometric features. Data are sparse for children below the age of 5 years, and future research should focus on simplified measures, instructions, and anchors for these younger children.

Expressive dimensions of pain catastrophizing: An observational study in adolescents with chronic pain

Investigated was the relationship between pain catastrophizing and pain intensity in adolescents suffering from chronic pain (n = 38) and the extent to which they expressed communicative pain and pain-related protective behaviours. Adolescents were observed on video performing a 2-Min Walk Test (2MWT). Behaviours were coded on videotape. The adolescents' verbalizations about the 2MWT were also rated by their parents. Analyses revealed that higher levels of catastrophic thinking about pain were associated with higher levels of facial pain expressions and verbalizations about their pain experience, beyond the effects of age, gender, pain duration and pain intensity. Pain-related protective behaviours did not vary with the adolescents' level of pain catastrophizing, but varied with pain intensity. The findings corroborate the functional distinctiveness of different types of pain behaviours. The results are discussed in terms of the processes linking (1) catastrophizing to communicative pain behaviours and (2) pain to pain-related protective behaviours.

Do cartoon stickers given after a hemoglobin finger stick influence preschoolers' pain perception?

The purpose of this study was to determine if providing a sticker after a finger stick for hemoglobin check reduced pain perception among preschool-aged children. The hypothesis was: Sticker rewards influence the perception of pain as measured by the Oucher scale following a finger stick to check hemoglobin. Preschoolers from Headstart Centers in a southeastern city were recruited for the study. The age range of participants was between 3 and 5 years. The children were assigned randomly into two groups: those receiving stickers (Group I), and those not receiving a sticker (Group II). Subsequently, each participant's pain level was assessed using the Oucher scale within 1 minute of the finger stick. There was no statistically significant difference in pain scale ratings between the two groups when comparing whether or not a cartoon sticker was given t (-.937, df 128, P = .351; 95% confidence interval). This study was clinically significant in that nonpharmacological interventions were utilized in an attempt to reduce pain in young children. Future research should determine whether receiving rewards (such as a cartoon sticker, adhesive bandages, or small toys) alone or in conjunction with distraction measures are efficacious in pain reduction in younger children.

The role of developmental factors in predicting young children's use of a self-report scale for pain

Accurate pain assessment is the foundation for effective pain management in children. At present, there is no clear consensus regarding the age at which young children are able to appropriately use self-report scales for pain. This study examined young children's ability to use the Faces Pain Scale-Revised; (FPS-R; [Hicks CL, von Baeyer CL, Spafford PA, van Korlaar I, Goodenough B. The Faces Pain Scale-Revised: toward a common metric in pediatric pain measurement. Pain 2001; 93: 173-83]) for pain in response to vignettes and investigated the role of developmental factors in predicting their ability to use the scale. One hundred and twelve healthy children (3-6 years old) were assessed for their ability to accurately use a common faces scale to rate pain in hypothetical vignettes depicting pain scenarios common in childhood. Accuracy was determined by considering whether children's judgements of pain severity matched the pain severity depicted in the various vignettes. Children were also administered measures of numerical reasoning, language, and overall cognitive development. Results indicated that 5- and 6-year-old children were significantly more accurate in their use of the FPS-R in response to the vignettes than 4-year-old children, who in turn were significantly more accurate than 3-year-old children. However, over half of the 6-year-olds demonstrated difficulties using the FPS-R in response to the vignettes. Child age was the only significant predictor of children's ability to use the scale in response to the vignettes. Thus, a substantial number of young children experienced difficulties using the FPS-R when rating pain in hypothetical vignettes, although the ability to use the scale did improve with age.