Portable Medical Equipment Holder Assists Pediatric Venipuncture

INTRODUCTION

Venipuncture is the most common invasive procedure in pediatrics but is widely regarded as challenging for the practitioner and traumatic for the young child [1, 2].Targeting smaller veins, using smaller equipment and the patient’s fear and pain are all contributing factors. The potential difficulty and time consuming nature of the procedure were recently demonstrated by Larsen et al. who found that gaining peripheral intravenous access in children takes on average 28 minutes and two venipuncture attempts [3]. This combination of difficulty and the emotional and physical distress of the patient explain why research is extensive and continuous in an attempt to improve the procedure. Several studies have concentrated on improving the child’s experience of the procedure such as the search for the optimal form of analgesia, including the use of a hand held laser device which improves anaesthetic potency, and the use of psychological distraction techniques [4-8]. Hands et al. found that despite the widespread knowledge of the psychological distress and pain generated by venipuncture, more could be done before and during the procedure to alleviate this [9]. Minimising the distress for the child during venipuncture is of vital importance to prevent the generation of needle phobia, an affliction that can remain with the patient for many years. Technological advances in the equipment used during the procedure have also been the subject of study. Analyses of novel deviceswhich help the practitioner to locate small and inaccessible veins using near infrared light have yielded positive results and routine, clinical application of these devices could significantly improve the procedure [1, 10-12]. The depth of research into this subject area is illustrated by a study which evaluated the best dressing for securing peripheral intravenous cannulae [13]. However, these avenues of research fail to address two significant problems associated with the procedure, namely needle-stick injuries and blood spillages. Research from a German university hospital showed that the prevalence of avoidable needle-stick injuries was particularly high within the pediatric department [14]. It is also widely accepted among health professionals that blood spillage is a common problem during venipuncture in children. Despite this, there is no evidence of research reporting a device which facilitates the safe storage of pediatric blood containers and needles during the procedure. The aim of this pilot study was to evaluate a novel medical equipment holder specific to pediatric practice which could be a useful adjunct for venipuncture.

METHODS

The study was carried out in the pediatric department of a district general hospital between the 1^st January and the 31^st March 2011. The department assesses and treats children from 0 to 16 years of age. The study aimed to evaluate a novel piece of apparatus which could be a useful adjunct for venipuncture. Pediatric doctors and nurses were asked to closely examine the device and then complete a questionnaire. The questionnaire contained 12 open and closed questions concerning role of the practitioner during venipuncture and their opinions of the device. The device is specifically designed to hold equipment during pediatric phlebotomy and venous cannulation. The prototype device used in this study was made of hardwood and coloured by white waterproof paint. The device was cuboidal in shape and measured 8cm x 8cm x 3.5 cm. The four identical bores were 2cm in diameter and 3cm deep, designed to hold pediatric blood containers. The central recess was 0.5cm wide and 0.2cm deep, suitable for storing an injection needle or a capillary tube (Fig. 1).

RESULTS

Fifty-three questionnaires were completed by the following groups of pediatric health professionals: 6 consultants, 5 registrars, 1 associate specialist, 1 staff grade doctor, 13 senior house officers, 3 advanced nurse practitioners, 2 specialist nurses, 2 sisters, 11 staff nurses, 6 auxiliary nurses, 2 students and 1 play coordinator. Practitioners who directly performed the procedure made up 66% of the cohort, 30% assisted with the procedure and the remaining 4% observed the procedure. Overall, 98% of participants rated the device as useful and 2% assumed a neutral position in terms of its usefulness. No participant in the study rated the device as not useful (Table 1). Among the qualified practitioners (n=51), the mean amount of experience post qualification was 8.2 years (98 months, range 6 to 336 months). Students accounted for the other two responses.

The participants were asked to document their first impressions of the device. The majority of the responses were positive with 45% believing it to be a good idea and 38% describing it as very good or excellent. A further 9% believed the device was useful or practical. The negative responses (8%) were provided by individuals who had seen or used a similar piece of apparatus previously. A non-disposable form of the device was favoured by 47% of participants. Conversely, 34% preferred a disposable model. Of the remaining individuals, 13% wanted the device to be available in both forms and 6% demonstrated no preference between the two options. A plain colour such as white was preferred by 42%, 30% said that the colour did not matter and 19% opted for a bright colour, for example yellow. Four individuals (8%) commented that child friendly pictures or patterns should be present. The one remaining participant didn’t quote a colour in their response but expressed a desire for colour differentiation between disposable and non-disposable forms. A variety of materials were suggested for the device: plastic (83.0%), dense foam (5.7%), metal (5.7%), cardboard (3.8%) and rubber (1.9%). The majority of participants (81.1%) concurred that the square shape of the prototype was ideal for the device. Other shapes suggested were: circular (9.4%), rectangular (5.7%) and oblong (1.9%). The remaining participant (1.9%) said that the shape of the device did not matter. Widely varying values were suggested as the recommended cost of the device depending on whether it was in a disposable or non-disposable form. In a disposable form, the valuations provided were: 10p ($0.2) or less (n=12), between 10p ($0.2) and 50p ($0.8) (n=2), from 50p ($0.8) to £1 ($1.6) (n=13), between £1 ($1.6) and £5 ($8) (n=2) and more than £5 ($8) (n=1). In a non-disposable form, the recommended costs were: £5 ($8) or less (n=30), between £5 ($8) and £10 ($16) (n=3), from £10 ($16) to £30 ($47) (n=15) and more than £30 ($47) (n=1). The figures in these respective categories do not summate to fifty-three because some participants stated a cost for both a disposable and non-disposable device whereas other participants chose to valuate either the disposable or the non-disposable form. The prototype device used for this study contained four bores and one recess. The majority of participants (64%) agreed that four bores was a suitable number. On the other hand, 32% wanted more than four bores and the remaining 4% wanted less than four bores. Thirty-three participants (62%) shared agreement that one recess was correct. Fifteen individuals (28%) wanted an extra recess added to the design and two people (4%) wanted more than two recesses. Three responders (6%) did not comment on the number of recesses.

Finally, the participants were asked to suggest any other modifications that could be made to the device. Eleven individuals deemed no further improvements necessary (21%). The most frequent recommendations were: adding a tray to the device (n=8), making space available for the storage of lids (n=6), making the model smaller (n=9) and making the model lighter (n=6). Other suggestions included adding a handle to the design (n=2), making the bores deeper and narrower to ensure tighter fitting of tubes (n=4), making the recess deeper (n=1) and adding a stand to the design (n=1). Two individuals expressed that they found the prototype device slippery and that a new material should be used to prevent this. One response stated that the devices should be designed so that they could be stacked upon each other and another stressed the importance of using a material that was easily washable.

DISCUSSION

In this single-centre study, fifty-three pediatric health professionals were asked to examine and comment on a novel device which could be a useful piece of apparatus during venipuncture in children. The portable medical equipment holder was well received by the pediatric staff. The vast majority of participants rated the device as useful. Both degree of seniority and role during the procedure had no significant influence on the responses provided. In terms of their first impression, eighty-three per cent described the device as good or excellent. The simplicity of the idea should not detract from its potential benefit as an adjunct for venipuncture. Evidence states that phlebotomy is a complex fine motor skill, even for the experienced practitioner, that requires good hand-eye coordination, manual dexterity and regular practice [7, 15]. Despite these findings, the senior practitioners in our study were no less receptive to the device than their junior colleagues. The usefulness of the device arises from its ability to hold open and closed pediatric blood containers in a secure, upright position which enables the simple deposition of blood into the container and the organised storage of equipment during the procedure. In clinical practice, the device can literally provide the proverbial ‘extra pair of hands’ and may improve the efficiency of the procedure and reduce the number of blood spillages. The recess also facilitates the safe storage of an injection needle and could reduce the incidence of avoidable needle-stick injury, a recognised risk of pediatric venipuncture [14].

The majority of the questionnaire focused on specific design issues including the preferred colour, shape and material for the device. These responses provided the foundations for some modifications and the development of a new design. The modified device is circular in shape, contains six bores and two recesses and is white in colour. A storyboard reveals the new design and depicts the device in clinical practice (Fig. 2). The extra number of bores and recesses allows more storage space for blood containers, injection needles and capillary tubes. Several participants suggested adding a removable tray to the device. This could facilitate the storage of other small pieces of equipment used during venipuncture such as plasters, cotton wool buds, gauzes, gloves and alcohol wipes. A non-disposable form of the device was favoured over the disposable alternative. Each option has its own respective strengths and weaknesses. A disposable device could be hygienically disposed of at the bedside and would be very cheap to produce. The modal cost suggested by the participants for a disposable device was in the range of 50 pence ($0.8) to £1 ($1.6). A non-disposable device would have to be cleaned on a regular basis and should be made stackable to reduce the required storage space. It is also worth taking into account the possibility of losing the device or it being temporarily taken by other health professionals which could be an inconvenience for the practitioner. If the device was to become a routine piece of apparatus for pediatric venipuncture, the non-disposable form would be the more financially viable option. The modal price suggested for a non-disposable device £5 ($8) or less. The costs suggested ranged from £3 ($5) to £35 ($55). If the device were to become routinely used in clinical practice, the production costs should be minimal to facilitate mass production and an affordable retail price. The participants considered plastic as the ideal material for the device. Plastic does appear to be a suitable choice because it is inexpensive to produce, easily cleaned and recyclable.

Four individuals commented that they had used a different piece of apparatus with a similar function in their previous practice. However, these were makeshift adaptations of simple test tube racks designed to hold adult sized tubes and did not possess a recess or the pediatric specificity which makes this device unique. An internet search revealed that similar pieces of apparatus are commercially available. However, these products are also designed to hold adult sized tubes and vacutainers which are not used in pediatric practice. There is also no evidence of a pediatric blood tube and injection needle holder subjected to clinical testing. This emphasizes the novelty of the device demonstrated in this study. Clinical application of the portable medical equipment holder could reduce the time required for phlebotomy and venous cannulation whilst also reducing the requirement for repeat venipunctures by preventing blood spillages. These interventions would significantly improve procedural efficiency and diminish the psychological and physical distress for the young patient involved. Future research should involve in-depth clinical analysis of the modified device across multiple centres.

AUTHORS CONTRIBUTION

EMS has designed the study, conducted the survey and co-wrote the manuscript. TWN evaluated the survey and co-wrote the manuscript.

CONFLICTS OF INTEREST

EMS has been granted a patent for the device in the United Kingdom (GB2486291).

REFERENCES