Properties of an ideal burn dressing: A survey of burn survivors and front-line burn healthcare providers.

OBJECTIVES: The objective of this study is to identify what burn survivors and front-line staff indicate would improve satisfaction with burn dressings, and the ranking of importance of different burn dressing characteristics. These findings will guide the development of future dressings to meet these needs. METHODS: Burn survivors (including the person injured and their family) and front-line burn healthcare providers completed a questionnaire on the importance given to different burn dressing characteristics (non-stick, absorbent, able to wear for a long time, flexible, easy to put on, easy to take off, antimicrobial, and non-bulky), and about the adequacy of pain management during dressing changes. RESULTS: A total of 99 individuals filled out the questionnaire (31 caregivers/survivors and 68 front-line burn healthcare providers). The most important dressing characteristics by both groups were "non-stick" and "fights infection". There was a significant difference between burn survivors and front-line burn healthcare providers pertaining to adequacy of pain management during dressing change. Adequate pain management was reported by 59% of burn survivors, which was significantly higher than that reported by the 25% front-line burn healthcare providers (p=0.002). CONCLUSIONS: Our study suggests that burn survivors and front-line burn providers have similar views on what constitutes an ideal dressing. A significantly proportion of caregiver/survivors felt that pain associated with dressing changes is being adequately managed despite healthcare providers' perception.

Factors predicting health-related quality of life following necrotizing fasciitis.

BACKGROUND: Necrotizing fasciitis (NF) is a debilitating soft tissue infection that results in disfiguring scars and often amputations. While mortality rates have improved, long-term outcomes in survivors of NF are poorly understood. OBJECTIVES: The objective of this study is to analyze the impact of NF on survivors' health-related quality of life (HRQoL) influenced by age, sex, comorbidities, %TBSA, and confidence with appearance. METHODS: We surveyed 56 adult patients with NF treated at either of two regional referral centers in Manitoba, Canada, between January 1, 2004, and December 31, 2014. Necrotizing soft tissue infections involving the fascial planes were identified during surgical debridement. HRQoL was measured by the Medical Outcomes Short Form-36. Derriford Appearance Scale-24, age, sex, comorbidities, and %TBSA were recorded, and group comparisons and stepwise regression models were developed for the mental and physical component scores separately. RESULTS: Mean Mental Component Score (MCS) was 44.5 ± 14.3 and mean Physical Component Score (PCS) was 36.5 ± 11.5; both means were lower than the Canadian population norm of 50. Although stepwise linear regression analyses with block entry indicated influence from age, sex, and comorbid conditions for the MCS and PCS, the only factors that were statistically significant in the final models were confidence with appearance for the MCS and %TBSA for the PCS. CONCLUSIONS: NF has long-term impact on mental and physical health-related quality of life. Distress regarding confidence with appearance affects mental quality of life, whereas the size of the injured area impacted physical quality of life. These findings can help guide targeted interventions that could potentially improve recovery from NF.

Early ambulation after-grafting of lower extremity burns.

OBJECTIVE: Early ambulation of lower extremity burns that undergo a skin graft may help to avoid some of the complications associated with immobilization. Despite recent evidence supporting early ambulation, post-operative immobilization following lower extremity skin grafting is still a common practice. The purpose of this study was to retrospectively assess the outcomes of lower extremity skin graft cases dressed with a multi-layer compression bandage who were ambulated in the immediate post-operative period. METHODS: This single centre observational study examined patients with a lower extremity burn that received a compressive dressing (Profore™) application immediately after surgical grafting and were ambulated no later than 1day post-operatively. RESULTS: Forty-two burn patients (47 limbs) met inclusion criteria for this study. Of these 42 patients, 25 were operated on as an inpatient. The remaining 17 patients were done on an outpatient basis and discharged the same day of surgery. Mean patient age was 48.2 years and 34 (81.0%) of patients were male. Mean TBSA affected was 5.3% (792cm2). Mean number of procedures was 1 and mean graft take was 98.9%. Nearly all patients were ambulated within 1day of surgery. The graft take rate across all cases was 98.9±2.3%. No patients failed early ambulation with their compressive dressings, were readmitted or underwent repeated skin grafting. CONCLUSIONS: This study demonstrates the excellent graft take rates that can be achieved with immediate ambulation following lower extremity skin grafting and challenges the conventional teaching of post-operative bed rest following lower extremity skin grafting procedures.

Evaluation of a multidisciplinary burn care journal club: Lessons learned.

BACKGROUND: Journal clubs allow discussion of the quality and findings of recent publications. However, journal clubs have not historically been multidisciplinary. Burn care is recognized as a true collaborative care model, including regular multidisciplinary rounds. Since 2011 we have offered a multidisciplinary burn journal club at our institution. We present an evaluation of the factors that have made the sessions successful to facilitate others to commence their own club. METHODS: At the end of each journal club session participants anonymously completed a structured evaluation. Five-point scales were used to evaluate understanding, meeting objectives, presentation and appropriateness of information. Qualitative questions were asked to identify beneficial factors, suggestions for improvements, ideas for future sessions and feedback for the facilitator. RESULTS: Attendance grew from six to a maximum of 19. Members included physicians, nurses, dieticians, physiotherapists, occupational therapists, social workers, basic scientists and students. Presentations were undertaken by all of these disciplines. Ratings improved steadily over time. Understanding increased from a score of 4.5 to 4.8; meeting objectives from 4 to 4.9; satisfaction with method of presentation from 4.3 to 4.9 and with level of information from 3 to 4.9. CONCLUSIONS: Over time, the journal club has evolved to better meet the needs of our team. Successful multidisciplinary journal club implementation requires identification of champions and ongoing evaluation. APPLICABILITY OF RESEARCH TO PRACTICE: The success of the journal club has been possible through the engagement of the entire burn team. Champions within each discipline, facilitated discussion and evaluation tools have helped nurture a nonthreatening team based learning environment.

Rate of contamination of hospital privacy curtains on a burns and plastic surgery ward: a cross-sectional study.

BACKGROUND: Surfaces in the patient environment may play a role in microbial transmission if they become colonized by bacteria. Patient privacy curtains are one such surface that may pose a high risk for transmission because they are high-contact surfaces, are infrequently cleaned, and healthcare workers are less likely to wash their hands after contacting inanimate objects such as curtains. AIM: To determine the amount and type of bacterial colonization of patient privacy curtains at a regional burns/plastic surgery unit. METHODS: Privacy curtain contamination on the burns/plastic surgery ward was determined for two separate occasions six months apart: 23 curtains on August 2015 and 26 curtains on January 2016. Dey-Engley neutralizing agar (DENA) replicate organism detection and counting (RODAC) contact plates were used daily to sample curtains near the edge hem where they are most frequently touched. Microbial contamination was reported as cfu/cm2 and the presence of meticillin-resistant Staphylococcus aureus (MRSA) was determined. Swabs were also taken of any open wounds and from tracheostomy sites on the ward. FINDINGS: Curtain contamination in August 2015 was 0.7-4.7 cfu/cm2 with 22% testing positive for MRSA, whereas contamination on January 2016 was 0.6-13.3 cfu/cm2 with 31% of curtains testing positive for MRSA. CONCLUSION: Curtains on the burns/plastic surgery ward become colonized with significant quantities of bacteria. Future studies will need to address the rate of colonization and the clinical impact of this colonization to better inform cleaning protocols.

Intermediate-level disinfection with accelerated hydrogen peroxide prevents accumulation of bacteria in Versajet™ tubing during repeated daily debridement using simulated-use testing with an inoculated pork hock.

OBJECTIVE: This study assesses the feasibility of using the Versajet™ system (VJS) on an inoculated pork hock (PH) skin surface sequentially for 8 days with daily cleaning and intermediate-level disinfection (ILD). METHODS: Daily, PHs were inoculated with bacteria suspended in artificial test soil (ATS). An ILD protocol with accelerated hydrogen peroxide (AHP, OxivirTB(®)) was employed to clean and disinfect the VJS between debridements. RESULTS: PH skin contains 6.1-6.8×10(6)cfu/cm(2) bacteria. Bacterial counts in the handpiece and discharge hoses immediately after debridement of the PHs, and before cleaning, increased throughout the study period (5.19-6.43log10cfu/mL). Cleaning with the ILD protocol was reduced bacterial counts on the VJS by 6-log. Protein, a surrogate marker of organic contamination, was also reduced post-cleaning and ILD. Compared to a maximum post-debridement level of protein (57.9 µg/mL) obtained before ILD, VJS protein levels dropped to 9.8 (handpiece) and 13.8 µg/mL (discharge hose). CONCLUSIONS: Disinfection of the handpiece and discharge hose after debridement with AHP resulted in a 6-log reduction in bacterial count and 4.2 fold reduction in protein. An ILD protocol with an AHP may be a feasible method for serial skin surface debridements with the VJS for up to eight days.

In vitro production of tumor necrosis factor-alpha by human monocytes stimulated with lipopolysaccharide is positively correlated with increased blood monocytes after exposure to a swine barn.

Recently there has been interest in the air quality in and around intensive livestock production facilities, such as modern swine production barns, where agricultural workers and surrounding residents may be exposed to elevated levels of organic dusts. The health effects of these exposures are not completely understood. The study that is reported here is a component of a larger investigation of the relationships among the acute effects of high-concentration endotoxin exposure (swine barn dust), polymorphisms in the TLR4 gene, and respiratory outcomes following exposure to swine confinement buildings. The relationships among a mediator of acute lung inflammation, tumor necrosis factor alpha (TNF-alpha), and clinical responses to acute swine barn exposure were characterized. Analysis of the results showed that in vitro stimulation of human monocytes with as little as 1 ng/ml of lipopolysaccharide (LPS) produced a significant increase in the monocytes that produced TNF-alpha. Although the proportion of TNF-alpha-positive monocytes after in vitro stimulation with 1 ng/ml of LPS was not associated with gender or TLR4 genotype, it was positively associated with the concentration of monocytes in blood after barn exposure. Thus, these two responses to different forms of LPS exposure are significantly correlated, and more responsive monocytes in vitro indicate a forthcoming relative monocytosis, post barn exposure, which may initiate a cascade of chronic inflammation.

Transforming growth factor-beta as a differentiating factor for cultured smooth muscle cells.

The aim of the present study was to determine whether the development of supercontractile smooth muscle cells, contributing to the nonspecific hyperreactivity of airways in asthmatic patients, is due to transforming growth factor (TGF)-beta. In cultured smooth muscle cells starved by removal of 10% foetal bovine serum for 7 days, growth arrest was seen; 30% became elongated and demonstrated super contractility. Study of conditioned medium suggested that the differentiating factor was TGF-beta. Sodium dodecyl sulphate-polyacrylamide gel electrophoresis (SDS-PAGE) was carried out on conditioned medium from the arrested cells. Two protein bands were identified as matrix metalloproteinase (MMP)-2 and TGF-beta1. To determine second messenger signalling by SMAD2, Western blotting and confocal microscopy were employed. Conditioned medium from arrested cultures showed the presence of MMP-2 and TGF-beta1, as revealed by SDS-PAGE; 68- and 25-kDa bands were seen. Differentiation was confirmed by upregulation of marker proteins, smooth muscle type myosin heavy chain and myosin light chain kinase. Confirmation was obtained by downregulating these proteins with decorin treatment, which reduces the levels of active TGF-beta and an adenoviral dominant-negative vector coding for a mutated type II TGF-beta-receptor. Activation of second messenger signalling was demonstrated immunocytochemically by the presence of phosphorylated SMAD2 and SMAD4. Transforming growth factor-beta is likely to be the differentiating factor responsible for the development of these supercontractile smooth muscle cells. The development of such cells in vivo after cessation of an asthmatic attack could contribute to the nonspecific hyperreactivity of airways seen in patients.