Wound Healing and Wound Care in Neonates: Current Therapies and Novel Options

Neonatal Fragile Skin: Novel Use of Simulation to Improve Knowledge and Confidence for Neonatal Nurse Practitioner Students

BACKGROUND

Infants with fragile skin pose challenges to neonatal providers, including the difficult nature of securing lifesaving devices. A paucity of information exists supporting best simulation practices in educating neonatal nurse practitioner (NNP) students on how to care for infants with fragile skin.

PURPOSE

To evaluate whether simulation improved student knowledge and self-confidence related to caring for infants with fragile skin.

METHODS

This quality improvement project included a pre/posttest survey with a sample of 14 NNP students. Participants practiced application of a multilayered dressing to secure a catheter to a neonatal manikin. Knowledge and self-confidence were measured before and after simulation.

RESULTS

Correct responses on posttest survey knowledge items increased along with students' confidence ratings following simulation. Students reported high levels of satisfaction with the simulation experience.

CONCLUSIONS

Simulation of caring for fragile skin allows NNP students the opportunity to improve self-confidence, knowledge, and performance of a necessary skill for NNPs.

Validation of a Wound Tool for Assessment of Surgical Wounds in Infants

BACKGROUND

Wound assessment is a critical part of the care of hospitalized infants in neonatal intensive care. Early recognition and initiation of appropriate treatment of wounds are imperative to facilitate wound healing and avoid complications such as secondary infection and wound dehiscence. There are, however, no validated tools for assessing surgical wounds in infants.

PURPOSE

The aim of this study was to develop and interrogate a tool for the assessment of surgical wounds. Specific aims for the tool included interrater reliability (give a consistent and dependable result independent of user) and test criterion validity (give an accurate assessment of the wound compared with an expert).

METHODS

This was an exploratory cohort study involving a structured wound tool applied by nursing staff to 40 surgical wounds. The wounds were also assessed by wound experts (a pediatric wound care nurse and a pediatric surgeon). Comparisons were made to elucidate estimates of reliability and validity.

RESULTS

The wound tool demonstrated interrater reliability with intraclass correlation coefficient of 0.775 (95% CI, 0.665-0.862) as well as criterion validity with rank correlation coefficient of 0.55 (95% CI, 0.34-0.76) to 0.71 (95% CI, 0.53-0.88). To obtain 100% sensitivity to distinguish mild from moderate-severe wounds, a low cutoff score was needed.

IMPLICATIONS FOR PRACTICE AND RESEARCH

Wound assessment continues to be a subjective exercise, even with the utilization of a tool. Additional research is needed for strategies to support the assessment of surgical wounds in infants. Such tools are needed for future research, particularly when multiple institutions are involved.

Collagen in Wound Healing

Normal wound healing progresses through inflammatory, proliferative and remodeling phases in response to tissue injury. Collagen, a key component of the extracellular matrix, plays critical roles in the regulation of the phases of wound healing either in its native, fibrillar conformation or as soluble components in the wound milieu. Impairments in any of these phases stall the wound in a chronic, non-healing state that typically requires some form of intervention to guide the process back to completion. Key factors in the hostile environment of a chronic wound are persistent inflammation, increased destruction of ECM components caused by elevated metalloproteinases and other enzymes and improper activation of soluble mediators of the wound healing process. Collagen, being central in the regulation of several of these processes, has been utilized as an adjunct wound therapy to promote healing. In this work the significance of collagen in different biological processes relevant to wound healing are reviewed and a summary of the current literature on the use of collagen-based products in wound care is provided.