Age differences in children's pain

Interventions to alleviate anxiety and pain during venipuncture in children with chronic gastrointestinal and/or liver disease: A single-center prospective observational study

Objectives

The goal of this longitudinal study was to reduce anxiety and pain in children with chronic conditions from the gastrointestinal tract during venipuncture. These children undergo regular venipuncture as part of their medical management and the procedure is often accompanied with anxiety and pain. In addition, children as well as their parents and health care professionals (HCPs) often suffer "compassionate pain" because of emotional interference.

Method

In a realistic clinical setting, different psychological and medical interventions were examined: (1) Psychoeducational brochures and (2) four different medical-technical interventions during venipuncture. In a large hospital in Germany, 169 children, their parents, and HCPs were asked to rate anxiety and pain during venipuncture before and after the intervention.

Results

Children showed a clear preference for some of the medical-technical interventions. Using Linear Mixed Models anxiety and pain rated by the children themselves showed no significant reduction. However, parents and HCPs reported a significant reduction. Age, gender, and status of liver transplantation were associated with a reduction in anxiety and pain in most of the analyses.

Conclusion

Both psychoeducational brochures and medical-technical interventions had a positive impact on anxiety and pain. However, effectivity for the medical-technical interventions was lower than in previous studies utilizing individual interventions. Reasons for this difference as well as possibilities to improve the intervention are discussed. In addition, this study provides practical day-to-day information about the implementation of interventions for the work in pediatric units such as when and how to provide psychoeducational materials.

A Sorrow Shared Is a Sorrow Halved? Patient and Parental Anxiety Associated with Venipuncture in Children before and after Liver Transplantation

Taking blood via venipuncture is part of the necessary surveillance before and after liver transplantation. The spectrum of response from children and their parents is variable, ranging from a short and limited aversion to paralyzing phobia. The aim of this retrospective, cross-sectional study was to determine the level of anxiety amongst children during venipuncture, to compare the anxiety reported by children and parents, and to identify the factors affecting the children’s and parents’ anxiety in order to develop therapeutic strategies. In total, 147 children (aged 0–17 years, 78 female) and their parents completed questionnaires. Statistical analysis was performed using qualitative and quantitative methods. Results showed that the majority of children reported anxiety and pain during venipuncture. Younger children had more anxiety (self-reported or assessed by parents). Children and parental reports of anxiety were highly correlated. However, the child’s anxiety was often reported as higher by parents than by the children themselves. The child’s general anxiety as well as the parents’ perceived stress from surgical interventions (but not the number of surgical interventions) prompted parental report of child anxiety. For children, the main stressors that correlated with anxiety and pain were factors during the blood collection itself (e.g., feeling the puncture, seeing the syringe). Parental anxiety was mainly related to circumstances before the blood collection (e.g., approaching the clinic, sitting in the waiting room). The main stressors mentioned by parents were the child’s discomfort and their inability to calm the child. Results indicate that the children’s fear of factors during the blood collection, along with the parents’ perceived stress and helplessness as well as their anticipatory anxiety are important starting points for facilitating the drawing of blood from children before and after liver transplantation, thereby supporting a better disease course in the future.

Clinical Holding in Pediatric Venipuncture: Caring by Empowering the Caregiver

The use of restraint in the child-adolescent population is highly controversial due to the consequences it can have for patients and their families, although it is sometimes necessary to employ restraint to perform techniques safely and effectively. Clinical Holding is committed to the involvement of parents during venipuncture in the context of family-centred care. This study assesses levels of distress and pain in children undergoing this procedure, as well as satisfaction in parents and nurses. Parents assist in the restraint of children and provide accompaniment during venipuncture. Levels of distress and pain were not particularly elevated. Satisfaction levels among parents and nurses were high. A positive correlation was found between anticipatory and real distress (r = 0.737, p = 0.000), and between real distress and real pain (r = 0.368, p = 0.035). A negative correlation was observed between real pain and parent satisfaction (r = -0.497, p = 0.003). Parental participation during venipuncture contributed to better management of distress and pain. In the future, it would be advisable to incorporate the other pharmacological and non-pharmacological measures recommended by Clinical Holding to ensure care of the highest quality and safety.

Self-Reported Presence and Experience of Pain in Adults with Down Syndrome

Objective

The aim was to examine whether the presence of pain (based on physical conditions and participants' report) and self-reported pain experience in adults with Down syndrome (DS) differ from general population controls.

Design

Cross-sectional study of 224 adults with DS (mean age = 38.1 years, mild-severe intellectual disabilities) and 142 age-matched controls (median age = 40.5 years, mean estimated IQ = 105.7) in the Netherlands.

Methods

File-based medical information was evaluated. Self-reported presence and experience of pain were assessed in rest and after movement during a test session (affect with facial affective scale (FAS: 0.04-0.97), intensity assessed with numeric rating scale (NRS: 0-10).

Results

Compared with controls, more DS participants had physical conditions that may cause pain and/or discomfort ( p  = .004, 50% vs 35%), but fewer DS participants reported pain during the test session ( p  = .003, 58% vs 73%). Of the participants who indicated pain and comprehended self-reporting scales ( n  = 198 FAS, n  = 161 NRS), the DS group reported a higher pain affect and intensity than the controls ( p  < .001, FAS: 0.75-0.85 vs 0.50-0.59, NRS: 6.00-7.94 vs 2.00-3.73).

Conclusions

Not all adults with DS and painful/discomforting physical conditions reported pain. Those who did indicated a higher pain experience than adults from the general population. Research into spontaneous self-report of pain, repeated pain assessment, and acute pain is needed in people with DS for more insight into pain experience and mismatches between self-report and medical information.

Dressing changes in a burns unit for children under the age of five: A qualitative study of mothers' experiences

This study aimed to investigate the experiences of mothers who had attended their child's burn dressing changes. Participants were recruited from a burns unit based within a children's hospital. Face-to-face interviews were conducted with five mothers of children under the age of five who had undergone a series of dressing changes taking place on the burns unit. The interview guide explored parents' experience of initial and subsequent dressing changes. Participants were prompted to explore their expectations, thoughts, feelings and behaviours associated with these experiences. The interviews were recorded and transcribed verbatim. Transcripts were analysed using interpretative phenomenological analysis. The analysis identified four themes: 'needing to fulfil the responsibilities associated with being a mother'; 'emotional synchrony between mother and child'; 'being informed and knowing what to expect'; and 'the importance of establishing rapport with nurses performing dressing changes'. Findings from this research can inform services to help optimise mothers' experiences of dressing changes in this stage of pediatric burn care.

Case study: videogame distraction reduces behavioral distress in a preschool-aged child undergoing repeated burn dressing changes: a single-subject design

OBJECTIVE

This single-subject design study evaluated the feasibility and efficacy of passive and interactive videogame distraction on behavioral distress for a preschool-aged child receiving repeated burn dressing changes.

METHOD

A 4-year-old girl underwent 3 baseline and 10 videogame distraction sessions (5 passive and 5 interactive) using a restricted alternating treatments design. Observed behavioral distress was coded, and parents and nurses rated the child's distress and cooperative behavior.

RESULTS

Relative to baseline, behavioral distress decreased and cooperative behavior increased immediately after the onset of videogame distraction. Single Case Randomization Tests revealed significantly lower behavioral distress and greater cooperation during interactive videogame distraction relative to passive videogame distraction.

CONCLUSIONS

Interactive videogame distraction appears to be a feasible and effective pain management strategy for a preschool-aged child undergoing repeated painful medical procedures.

Children's ratings of the intensity and unpleasantness of post-operative pain using facial expression scales

This study explored whether global unidimensional self-report pain scales based on facial expression help children separately estimate the sensory and affective magnitude of post-operative pain. Ninety paediatric elective surgery patients (in two age groups: 5-9 and 10-15 years) used each of four scales to estimate pain intensity and pain affect during the first 2 days after surgery. The four scales were: Faces Pain Scale (FPS), Facial Affective Scale (FAS), and the Coloured Analogue Scale (CAS) (one for intensity and one for unpleasantness). As hypothesised, ratings on the FPS correlated more highly with analogue scale ratings for intensity than for unpleasantness, whereas ratings on the FAS correlated more highly with those on the analogue scale for unpleasantness than for intensity. Factor analysis indicated that although all measures loaded on a single dimension of distress, there was an additional weaker factor corresponding to a unique contribution of the FAS. No systematic age effects were observed. It was concluded that the FPS and the FAS may partly measure different aspects of the postoperative pain experience in children, although shared instrument variance may obscure true estimates of covariation in ratings of intensity and affective magnitude. The clinical relevance of the present results remains to be determined.

Everyday- and dental-pain experiences in healthy Swedish 8-19 year olds: an epidemiological study

BACKGROUND

Very little is known about children's everyday pains and dental treatment pains. A child's gender, age, and level of dental anxiety are factors that could interplay with the perception of pain and are thus worth studying.

AIM

The objectives of this study were to investigate the frequency and reported intensity levels of children's everyday- and dental-pain experiences, and to study the reported pains in relation to gender, age, and dental anxiety.

DESIGN

Three hundred and sixty-eight consecutive patients (8-19 years, mean age 13.5 years) from three different Public Dental Service were recruited. Pain ratings were obtained using McGrath's Children's Pain Inventory list and some additional items. Dental anxiety was estimated by the Dental Anxiety Scale.

RESULTS

Most frequently experienced everyday pains were headache and tummy/stomach ache. Among dental treatment events, dental injection was reported to be most often ranked as painful, and more frequently by girls. Both dental and everyday pains were rated higher grouping children with high dental anxiety.

CONCLUSIONS

The frequency of pain experiences are the same in Swedish children as in other populations. There is a relation between dental anxiety and the perception of pain.

Predictors of Topical Anesthetic Effectiveness in Children

Some children report significant pain with peripheral intravenous catheter (IV) insertion, despite the appropriate use of topical lidocaine anesthetics. This analysis of data from an existing study identified factors related to variation in topical anesthetic effectiveness used for IV insertion. The children (n = 218) in this investigation were 4 to 10 years old and undergoing a scheduled IV insertion. Inclusion criteria were (1) topical anesthetic was used according to manufacturer's recommendations, (2) DNA material was available, and (3) child completed a self-report measure of pain intensity (Oucher scale). Low pain phenotype was defined as a pain intensity score of 0 to 3, and high pain phenotype was an intensity score of 4 to 10. Potential predictor variables included child age, gender, number of previous painful procedures, state and trait anxiety, temperament characteristics, and alleles in 3 candidate genes in a pain pathway influenced by topical anesthetics (endothelin-1 [EDN1], endothelin receptor A [EDNRA], endothelin receptor B [EDNRB]). All subjects were genotyped for a single-nucleotide polymorphism in each gene. Children in the high pain group (n = 89) were significantly younger (P < .0001), more active (P = .0029), scored higher for trait (P = .0009) and state anxiety (P = .0312), and had the EDNRA TT genotype (high pain group, TT 67.35%; low pain group, TT 39.47%; P = .026).

PERSPECTIVE

The identification of factors that influence peripheral pain sensation aids in selecting the most appropriate pharmacologic and nonpharmacologic interventions. Until genotyping is available at a clinically prescriptive level, other predictors (eg, age and activity level) can be used to tailor pain-relieving strategies for children undergoing needle sticks.

Effects of attentional direction, age, and coping style on cold-pressor pain in children

This study assessed the relative efficacy of two imagery-based attentional strategies for modifying pain experience in children. Children aged 7-14 years (n = 120) were randomly assigned to one of three conditions: distraction, sensory-focussing or control (no imagery). The distraction condition prompted children to focus their attention externally; the sensory-focussing condition prompted the child to focus internally on physical sensations. Self-report measures of pain coping style preferences and imagery ability were completed. Children's pain tolerance and perceptions of pain intensity were assessed using a 10 degrees C cold-pressor task. Results showed pain intensity ratings after 1 min were lower for both intervention conditions than for the controls. Younger children (7-9 years) showed higher pain tolerance in the distraction condition than in the sensory-focussing condition, whereas both interventions were equally effective for older children (10-14 years). Among older children, coping style interacted with the intervention type: in the sensory-focussing condition, pain tolerance was negatively associated with self-reported distraction-based coping style, whereas in the distraction condition this association was positive. The results are interpreted with reference to current models of attention. The implications for use of attentional strategies in helping children to cope with clinical pain are discussed.

Evaluating instruments for a study on children's responses to a painful procedure when parents are distraction coaches

Existing research identifies numerous variables that may influence children's distress responses during medical procedures. In preparation for a large multisite study to test relationships among these numerous variables and parent distraction coaching, a pilot study of instruments was performed that measured the more complex constructs, namely anxiety, coping, temperament, attention, and parenting style. This article describes the benefits, process, and results of evaluating research instruments before initiating a large study on children's distress during ;medical procedures. A convenience sample of 68 children (4-12 years old) and their parents participated in this study. Children completed state and trait anxiety measures and a coping style scale. Parents completed questionnaires about their child's temperament, attention behavior, anxiety, and coping during a recent medical procedure, and about their own anxiety and parenting style. Coefficients of reliability of the measures were examined and understandability of the instruments was assessed. A forward regression showed that nurturing parenting style, parent's state anxiety, and child's state anxiety accounted for 32% of the variance in child distress during a recent medical procedure.

A conceptual model of factors influencing children's responses to a painful procedure when parents are distraction coaches

The purpose of this article is to present a model of factors that may influence a child's response to a painful procedure when parents are distraction coaches during the procedure. Nonpharmacological interventions, in particular, distraction, and parents as coaches for their children during procedures are discussed. A conceptual model is presented that illustrates the multiple factors and their possible relationships. A selected review of studies is provided that supports the inclusion of these factors in the model. The model and literature review focus on three major areas: characteristics of the child, characteristics of the parent, and procedural variables. The model presented is currently being tested in a large multisite study on the use of distraction during intravenous line insertion.

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

OBJECTIVES

Although self-reports are a commonly used means of assessing pain in clinical settings, little is understood about the nature of children's spontaneous verbal expressions of pain. The purpose of this study was to describe verbalizations of pain among children receiving a preschool immunization and to examine how pain verbalizations correspond to children's facial expressions and self-reports of pain intensity.

METHODS

Fifty-eight children between the ages of 4 years 8 months and 6 years 3 months (67% female) were videotaped while receiving their routine preschool immunization. Global ratings of facial expression and detailed transcription and coding of pain verbalizations were undertaken. Children provided self-reports of pain using a 7-point faces pain scale.

RESULTS

Fifty-three percent of children used verbalizations spontaneously to express their pain. The modal verbalization was the interjection "Ow!," which expressed negative affect and was specific to the experience of pain. Older children were less likely to use verbalizations to express their pain. Children who used verbalizations to express pain displayed greater facial reactions to pain and rated their pain experience as being more intense than children who did not use words to express their pain.

DISCUSSION

Results indicate that many young children do not spontaneously use verbalizations to express pain from immunization. When 5-year-olds use verbalizations to express pain, the verbalizations are most often brief statements that express negative affect and directly pertain to pain. Knowledge of how children verbalize pain may lead to an improved ability to assess and manage pediatric pain.

Dose minimization study of single-dose epidural morphine in patients undergoing hip surgery under regional anesthesia with bupivacaine

BACKGROUND

In order to decrease the rate of adverse effects, we aimed to identify the lowest analgesic dose of epidural morphine administered to patients undergoing hip surgery.

METHODS

Forty-five ASA I-II children undergoing surgical correction of hip dysplasia under caudal or epidural anesthesia with bupivacaine were randomized to receive epidural morphine 11.2, 15 or 20 microg.kg(-1) (groups 1, 2 and 3, respectively; 15 patients per group) immediately after completion of surgery. Postoperative pain control, sedation, motor block, urinary retention, pruritus and vomiting were evaluated.

RESULTS

In the recovery room, 46.7% of patients from group 1, 33.3% from group 2, and 93.3% from group 3 were sleeping but were easy to arouse (x(2) = 12.2; P < 0.005). The rest of the patients from each respective group were completely asleep. The cardiovascular and respiratory parameters were within normal limits. The ability to move the legs returned approximately 1 h after surgery in all three groups. Seven patients (46.7%) from group 1, nine (60%) from group 2, and 13 patients (86.7%) from group 3 vomited (x(2) = 5.4; P = 0.06). One patient receiving 20 microg.kg(-1) morphine experienced urinary retention. One patient receiving 15 microg.kg(-1) morphine suffered from pruritus. The duration of analgesia was similar, 12-14 h, in all three groups.

CONCLUSIONS

In patients undergoing hip surgery under regional anesthesia with bupivacaine, epidural morphine at a dose of 11.2 microg.kg(-1) administered immediately after completion of the procedure resulted in adequate pain relief for more than 12 h. Explanation of the high rate of patients vomiting (>45%) remains to be elucidated.

The pain experience of adolescents after acute blunt traumatic injury

Because little is known about adolescent pain, in particular pain after blunt traumatic injury, a descriptive exploratory approach was used to examine the pain experience of adolescents after acute blunt traumatic injury in three contexts: at the scene of the accident, in the emergency department, and in the hospital setting. For the 13 adolescents (11-17 years) who experienced multiple sites of blunt unintentional injury, the majority recalled their worst pain at the scene and in the emergency department, with high, intense pain persisting into the hospital setting. Regardless of the context, adolescents recalled multiple aspects of their pain experience. Study findings have implications for the understanding and management of adolescent pain resulting from blunt traumatic injury.

Preparing children for venepuncture. The effect of an integrated intervention on distress before and during venepuncture

Venepuncture for routine blood sampling is a very distressing experience for a considerable number of children. Not only do they express high levels of distress during venepuncture but also in anticipation of the procedure. Therefore, prevention or reduction of distress should focus on both phases of the procedure. To this end, three preparation elements were combined: local anaesthesia of the skin, provision of sensory and procedural information, and involvement of the parent. In order to test the effect of this integrated procedure on the distress reactions of young children before as well as during venepuncture, 31 children were randomly assigned to one of two conditions: preparation or no preparation. Independent raters, who were blind to group assignments, scored segments of the videotaped behaviour of the children, according to the Groninger Distress Scale. Prepared children displayed significantly less distress before and during venepuncture than not-prepared children, regardless of their gender, ethnical origin, age, injection history, and the tension of their parent.

A comparison of faces scales for the measurement of pediatric pain: children's and parents' ratings

Faces scales have become the most popular approach to eliciting children's self-reports of pain, although different formats are available. The present study examined: (a) the potential for bias in children's self-reported ratings of clinical pain when using scales with smiling rather than neutral 'no pain' faces; (b) levels of agreement between child and parent reports of pain using different faces scales; and (c) preferences for scales by children and parents. Participants were 75 children between the ages of 5 and 12 years undergoing venepuncture, and their parents. Following venepuncture, children and parents independently rated the child's pain using five different randomly presented faces scales and indicated which of the scales they preferred and why. Children's ratings across scales were very highly correlated; however, they rated significantly more pain when using scales with a smiling rather than a neutral 'no pain' face. Girls reported significantly greater levels of pain than boys, regardless of scale type. There were no age differences in children's pain reports. Parents' ratings across scales were also highly correlated; however, parents also had higher pain ratings using scales with smiling 'no pain' faces. The level of agreement between child and parent reports of pain was low and did not vary as a function of the scale type used; parents overestimated their children's pain using all five scales. Children and parents preferred scales that they perceived to be happy and cartoon-like. The results of this study indicate that subtle variations in the format of faces scales do influence children's and parents' ratings of pain in clinical settings.

Pain in children: qualitative research of Finnish school-aged children's experiences of pain in hospital

The purpose of the study was to describe school-aged children's experiences of pain in the hospital. Data were collected from 20 children aged between seven and 11 years of age who were inpatients in the pediatric wards of the University Hospital, Oulu, Finland. Each of the children wrote of their experiences of pain in the hospital, and they were interviewed on the basis of this information. The data were analyzed inductively using content analysis. On the basis of the analysis, the situations that caused pain to all children in the hospital were found to be procedures connected with needles. The children described their experiences of pain as both physiological (e.g. poking, stinging, aching) and psychological feelings (unpleasant feelings, terror, anxiety, and fear). In addition, methods of relieving pain (coping mechanisms, help from the medical staff, parental presence, and previous experiences of similar situations) were acknowledged. The results indicate that school-aged children (aged 7-11 years) are able to describe their pain experiences, which should be considered in assessment and treatment of children's pain in nursing practice.

Effects of distraction on children's pain and distress during medical procedures: a meta-analysis

BACKGROUND

It is difficult to determine the usefulness of distraction to decrease children's distress behavior and pain during medical procedures because many studies use very small samples and report inconsistent findings.

OBJECTIVES

To investigate the mean effect sizes across studies for the effects of distraction on young children's distress behavior and self-reported pain during medical procedures.

METHOD

Hunter and Schmidt's (1990) procedures were used to analyze 16 studies (total n = 491) on children's distress behavior and 10 studies (total n = 535) on children's pain.

RESULTS

For distress behavior, the mean effect size was 0.33 (+/-0.17), with 74% of the variance accounted for by sampling and measurement error. For pain, the mean effect size was 0.62 (+/-0.42) with 35% of the variance accounted for. Analysis of studies on pain that limited the sample to children 7 years of age or younger (total n = 286) increased the amount of explained variance to 60%.

CONCLUSIONS

Distraction had a positive effect on children's distress behavior across the populations represented in this study. The effect of distraction on children's self-reported pain is influenced by moderator variables. Controlling for age and type of painful procedure significantly increased the amount of explained variance, but there are other unidentified moderators at work.

Pain and fear ratings: clinical implications of age and gender differences

The study investigated the relationships among children's self-report of anticipatory pain and fear, physiological measures of distress, and previous medical experience in 62 outpatients during allergy skin testing. Younger (aged 3-7 years) and older (aged 8-12 years) children reported similar amounts of pain and fear. Girls reported more pain than boys. Older children and boys provided differential pain and fear ratings compared with younger children and girls. Younger children's self-report of distress was not related to any physiological measures, but older children's report of fear was significantly related to blood pressure. In girls, positive medical experience was correlated with less pain. The implications of these findings for the clinical measurement and intervention of children's distress during painful medical procedures are discussed.

Underprediction of pain in children undergoing ear piercing

Ear piercing is a brief, standard, painful stimulus which is submitted to voluntarily, offering a unique opportunity for research on children's anticipation of pain in a naturalistic context. Self-ratings on visual analogue scales of fear, predicted pain, and experienced pain were collected, as each ear was pierced in turn, from 32 girls aged 5-11 yr. Of these, 69% underpredicted their pain on the first ear. These underpredictors of pain on the first ear expected and reported significantly greater pain when the second ear was pierced than did overpredictors or children who accurately predicted the pain for the first ear. Fear scores taken before the first ear was pierced did not significantly predict pain for the second ear. Younger children made less accurate predictions and were more likely to use the extremes of the scale. The results, which are consistent with those of previous studies of prediction of pain and anxiety, have implications for preparation of children for brief procedural pain: they support recommendations to encourage children to expect realistic rather than minimal amounts of pain.

Postoperative pain in Danish children: self-report measures of pain intensity

The Oucher and the Poker Chip Tool are two of the most widely used instruments designed to measure children's self-report of pain intensity. Most of the studies dealing with the Oucher and the Poker Chip Tool use North American children as subjects. To establish the versatility of the instruments in patients of various cultural backgrounds and with different types of pain, this study used the Oucher and the Poker Chip Tool with 100 Danish children, age 3 to 15 years, after tonsillectomy. Both the Oucher and the Poker Chip Tool provided easy-to-use devices in clinical practice for the estimation of the intensity of the children's pain. Although the Poker Chip Tool only provides five discrete levels of pain, the strong positive relationships between the pain scores derived from the Oucher and the Poker Chip Tool (r = 0.71-0.79, p < .001) indicate its utility in clinical practice. The Oucher uses actual pictures of a child and therefore demonstrates ethnicity directly. The results of this study suggest that Danish children as well as American children are able to use the Oucher as a method to self-report pain intensity.

The use of a topical refrigerant anesthetic to reduce injection pain in children

Early childhood experiences with painful injections may lead to anxiety and fear. These reactions need not develop if steps are taken to reduce the pain associated with injections. The purpose of this study was to assess the efficacy of a refrigerant topical anesthetic in reducing injection pain in preschool children experiencing routine diphtheria-pertussis-tetanus (DPT) immunizations. This double-blind placebo-controlled study was conducted in community health clinics in conjunction with ongoing immunization programs. Ninety subjects, aged 4-5.5 years, were randomly assigned to one of three groups: (a) refrigerant topical anesthetic; (b) placebo topical spray; and (c) no-spray control. Pain was measured subjectively using a four-point visual analogue scale. Both the refrigerant topical anesthetic spray and the placebo spray significantly reduced injection pain. Age was found to be an important factor influencing pain response in this study. Parental anxiety was not a significant factor influencing pain response. In addition, parents were not good at predicting their child's pain. The results of the study support the use of an intervention, such as refrigerant topical anesthetic, as a practical, simple, and effective treatment strategy for reduction of short-term painful procedures like injections.

Children's venipuncture pain: influence of technical factors

Several aspects of venipuncture technique were evaluated to assess their relationship to reported pain. Subjects were 514 children aged 5-17 who had venipuncture performed by a technician in a hospital outpatient laboratory. A research assistant timed the duration of venipuncture and then obtained visual analogue pain scores from the children following venipuncture. Blood volume obtained from venipuncture was also measured. The technician who performed the procedure, amount of blood drawn, and time required to complete the venipuncture did not contribute to the prediction of children's pain. Age and anxiety, which were treated as covariates, were significant predictors of pain. The distribution of pain experienced by children was positively skewed and about one-third of children were above the mean pain score. From the results of this study, venipuncture pain can be recommended for the study of issues in children's pain. Further, the findings recommend the development and utilization of interventions to reduce children's venipuncture pain.