A COMBINATION OF HERPES VIRUS INFECTION (HSV-1, HHV-6) AND MULTI-RESISTANT BACTERIAL INFECTION IN A SEVERELY BURNED PEDIATRIC PATIENT - A CASE REPORT.

Serious burn trauma is associated with changes of the immune system, and immunosuppression induced by burn trauma can lead to reactivation of latent infections. Herpetic viruses are known for their lifelong persistence after primary infection and ability to reactivate. Their reactivation in the setting of burn trauma or primary infection can cause serious complications for a weakened burn patient. Presented is a case of a toddler who sustained second-degree scald burns over 20% of his body surface area. The injury was complicated by a multi-resistant bacterial infection in addition to reactivation of a latent HHV-6 infection concurrently with a primary HSV-1 infection. Described further are basic diagnostics, local and systemic treatment strategies, and other complications due to disseminated herpetic infections. To date, HHV-6 reactivation has not been described in conjunction with burn injury.

DERMAL REPLACEMENT WITH MATRIDERM - FIRST EXPERIENCE AT THE PRAGUE BURN CENTRE.

INTRODUCTION: The quality of resulting scar tissue plays an important role in patients return to normal life and full functioning in society. The use of artificial skin substitutes in clinical practice improves functional and cosmetic outcomes. This is true for any patient, and not only those suffering from burns. MATERIAL AND METHODS: The collagen elastin dermal substitute Matriderm® allows for immediate application of a dermal substitute together with a skin graft. The authors present a group of 10 patients representing their first experience in utilizing Matriderm® as a dermal substitute in the treatment of skin losses due to various etiologies. RESULTS: The average healing time in the group was 19.6 days. Healing took place without serious infectious complications and with good functional results. CONCLUSION: Matriderm® can be utilized as an alternative to the most commonly used dermal substitute so far, Integra®, in the treatment of acute skin loss due to various etiologies and in reconstructive surgery.

Early Changes during Skin Repair Using Tissue-Engineered Dermal Template in a Full-Thickness Burn.

Rapid wound closure in extensively burned patients has remained one of the major unresolved issues of medicine. Integra® is the most widely established artificial skin, which is composed of a porous matrix of cross-linked bovine collagen and chondroitin 6-sulphate covered by a semi-permeable silicone layer. We present here a (immuno)histological study of a severely burned patient with a full-thickness burn treated with a tissue-engineered dermal template (Integra®) and split-thickness skin graft-based protocol. Immunohistochemical investigation of the artificial dermis revealed that immune cell infiltration reached its peak on day 10. Tissue immunophenotyping found an increase in CD3+ cells over the course of the study as well as CD4 and CD8 positivity on day 40, indicating remaining T-cell subpopulations. We observed weak/no infiltration of NK cells (CD56+). In conclusion, the use of bi-layer Integra® represents a feasible and safe procedure resulting in formation of non-irritating dermal substitutes.

Early surgical management in patients with burns.

Burns can be life threatening injuries with a significant risk of lifelong consequences. Severity of thermal injury is assessed using the combination of six essential factors (mechanism of injury, presence of inhalation trauma, extent of the burn area, depth of the burn, its location, patients age and co-morbidities) which also represent the determinants of referral to one of the three specialized burn centers in the Czech Republic. Early management consists of ABC Trauma Life Support (adequate oxygenation and ventilation, a venous access, parenteral fluid administration), pain relief, and sterile covering of the burn areas.

Toxic epidermal necrolysis data from the CELESTE multinational registry. Part II: Specific systemic and local risk factors for the development of infectious complications.

The aim of the study was to identify the most important systemic and local risk factors for the development of infectious complications in patients with toxic epidermal necrolysis (TEN). MATERIAL AND METHODOLOGY: This is a multicentric study that included all patients with TEN who were hospitalized between 2000-2015 in specialized centres in the Czech Republic and Slovakia. The total catchment area included a population of over 12.5 million inhabitants. The actual implementation of the project was carried out using data obtained from the CELESTE (Central European LyEll Syndrome: Therapeutic Evaluation) registry, wherein specific parameters related to epidemiological indicators and infectious complications in patients with TEN were evaluated as a retrospective analysis. RESULTS: A total of 38 patients (97%) of the group were treated with corticosteroids. The comparison of patients with different doses of corticosteroids did not exhibit a statistically significant effect of corticosteroid administration on the development of infectious complications (p=0.421). There was no effect of the extent of the exfoliated area on the development of infectious complications in this area. The average extent of the exfoliated area was 66% TBSA (total body surface area) in patients with reported infectious complications and 71% TBSA (p=0.675) in patients without infectious complications. In the case of the development of an infectious complication in the bloodstream (BSI), the increasing effect of the SCORTEN (SCORe of Toxic Epidermal Necrosis) value was monitored during hospitalization. Within 5days from the beginning of the hospitalization, the average SCORTEN value was 2.7 in 6 patients with BSI and 3.0 in 32 patients without BSI (p=0.588). In the period after the 15th day of hospitalization, 7 patients with BSI had an average SCORTEN value of 3.4, and 16 patients without BSI had an average SCORTEN value of 2.5 (p=0.079). In the case of low respiratory tract infection (LRTI), the effects of the necessity for artificial pulmonary ventilation and the presence of tracheostomy were monitored. The statistically significant effect of mechanical ventilation on the development of LRTI occurred only during the period of 11-15days from the beginning of the hospitalization (p=0.016). The effect of the tracheostomy on the development of LRTI was proven to be more significant. CONCLUSION: We did not find any statistically significant correlation between the nature of immunosuppressive therapy and the risk of developing infectious complications. We failed to identify statistically significant risk factors for the development of BSI. Mechanical ventilation and tracheostomy increase the likelihood of developing LRTIs in patients with TEN.

Toxic epidermal necrolysis data from the CELESTE multinational registry. Part I: Epidemiology and general microbiological characteristics.

INTRODUCTION: Toxic epidermal necrolysis (TEN) is a rare, life-threatening autoimmune disease predominantly manifested in the skin and mucous membranes. Today, infectious complications have the dominant share in mortality of TEN patients. Due to the nature of the therapy and administration of immunosuppressive medications, a wide range of potentially pathogenic microorganisms, which cause infectious complications in different compartments in these patients, is not surprising. MATERIAL AND METHODOLOGY: This is a multicentric study, which included all patients with TEN hospitalized between 2000-2015 in specialized centres in the Czech Republic and Slovakia. The total catchment area was over 12.5 million inhabitants. The actual implementation of the project was carried out using data obtained from the registry CELESTE (Central European LyEll Syndrome: Therapeutic Evaluation), when specific parameters relating to epidemiological indicators and infectious complications in patients with TEN were evaluated in the form of a retrospective analysis. RESULTS: In total, 39 patients with TEN were included in the study (12 patients died, mortality was 31%), who were hospitalized in the monitored period. The median age of patients in the group was 63 years (the range was 4-83 years, the mean was 51 years), the median of the exfoliated area was 70% TBSA (total body surface area) (range 30-100%, mean 67%). SCORTEN was calculated for 38 patients on the day of admission. Its median in all patients was 3 (range 1-6; mean 3). Any kind of infectious complication in the study group was recorded in 33 patients in total (85%). In total, 30 patients (77%) were infected with gram-positive cocci, 27 patients (69%) with gram-negative rods, and yeast cells or fibrous sponge were cultivated in 12 patients (31%). A total of 32 patients (82%) were found to have infectious complications in the exfoliated area, 15 patients (39%) had lower respiratory tract infections, 18 patients (46%) urinary tract infections and 15 patients (39%) an infection in the bloodstream. The most common potentially pathogenic microorganism isolated in our study group was coagulase neg. Staphylococcus, which caused infectious complications in 24 patients. Enterococcus faecalis/faecium (19 patients), Pseudomonas aeruginosa (17 patients), Staphylococcus aureus (11 patients) and Escherichia coli (11 patients) were other most frequently isolated micro-organisms. CONCLUSION: The published data were obtained from the unique registry of TEN patients in Central Europe. In the first part, we have succeeded in defining the basic epidemiological indicators in the group of patients anonymously included in this registry. The study clearly confirms that infectious complications currently play an essential role in TEN patients, often limiting the chances of survival. The study also shows a high prevalence of these complications in the period after 15days from the start of hospitalization, when most patients already have completely regenerated skin cover.

EXPERIENCE WITH INTEGRA® AT THE PRAGUE BURNS CENTRE 2002-2016.

INTRODUCTION: Integra® dermal replacement has a wide spectrum of use both in burn medicine as well as in reconstructive plastic surgery and traumatology. Since 2002, it has been a part of surgical treatment of patients at Prague Burns Centre of the Královské Vinohrady Teaching Hospital. STUDY GROUP: Integra® was used in 47 patients in total between years 2002 and 2016. In this group there were 28 paediatric patients and 19 adult patients. Eleven children were operated during the reconstructive period, 8 children had an acute injury. There were 11 adult patients with Integra® applied within the trauma treatment, another 9 during reconstructive surgery. In 2016, we examined 11 patients treated by Integra®, at least 2 years ago. The average time since the application was 9 years. All examined patients had Integra® primarily applied to treat an acute injury. METHOD: Scars after the application of Integra® were compared with scars after dermoepidermal grafts (DE) in respective patients. Evaluation was performed on the basis of subjective and objective assessment by means of the modified Vancouver Scale (VSS). Samples were submitted for a histological and immunohistochemical analysis. RESULTS: Areas with Integra® coverage scored 1.4 points on average on the VSS. The scars after dermoepidermal graft scored 4 points on the same scale. Subjective assessment of functional and cosmetic quality of scars by patients was better in all cases in comparison to DE grafting. Notable differences were found between scars following Integra® application and those after DE grafting on histological assessment, namely in the organization and quality of collagen and elastin fibres as well as in tissue revascularization. CONCLUSION: The Integra® artificial skin replacement is a part of surgical strategy in management of extensive burn trauma and plays an important role in reconstructive surgery. The resulting scar quality when using Integra® seems to be better than in DE grafting both from an objective and subjective points of view..

MICRONEEDLING - A FORM OF COLLAGEN INDUCTION THERAPY - OUR FIRST EXPERIENCES.

INTRODUCTION: Microneedling (percutaneous collagen induction therapy) is a new promising miniinvasive therapeutic method for the treatment of skin alterations of different aetiology, including burn scars. Since 2016, it is also available at our department. The microtraumatization of scars with the Dermaroller® leads to an activation of the healing cascade, activation of growth factors, which activate cell proliferation in the wound, increased synthesis and deposit of collagen - elastin complex with successive transformation of collagen III to collagen I, to neoangiogenesis and thus to accelerated scar remodelling. MATERIAL AND METHODS: In the pilot study conducted in 2016, the microneedling method with Dermaroller® with 2.5 mm needles was used in six patients (two males, four females; age 25-73 years) with stabilized scars after previous application of split thickness skin graft due to thermal injury. We repeated the microneedling procedure in three intervals approximately 6 to 8 weeks apart, with the use of topical anaesthesia. RESULTS: Preliminary results showed a subjective improvement of the scars. Objective evaluation with the Vancouver Scar Score showed an improvement of an average of two points before and after treatment. CONCLUSION: Our first clinical experience show that microneedling appears to be a suitable microinvasive method for the improvement of scar quality after burn trauma.

The treatment of palmar contact burns in children: a five-year review.

Pediatric palmar contact burns are becoming a common trauma, especially in young children. Treatment of this kind of burn is challenging as well as controversial, regarding the choice between split-thickness or full-thickness skin graft to close the defect. The aim of this review was to evaluate the treatment algorithm at our clinic. We conducted a retrospective study including all patients 0 - 5 years of age admitted to our department from 2008 to 2012 with isolated superficial or deep partial-thickness palmar burns. The mean age was 16.1 months. In 27 cases (52.9%) we were able to close the wound conservatively. Average healing time in this group was 13.3 days. Two of these 27 patients developed flexion contractures, but none of them required additional operation. Twenty-four patients were treated using split-thickness skin graft. The average time period from the day of injury to the day of surgery was 14.2 days. Contractures occurred in 5 (20.8%) of the patients who underwent grafting, Secondary reconstruction using full-thickness skin graft was performed in all 5 of them, which represents 9.8% of all patients. We consider split-thickness grafting quick, easy and effective, with minimal to no donor site morbidity and insignificant inflammation complications. Due to reduced healing time after the actual grafting, rehabilitation can commence earlier.

Les brûlures palmaires par contact sont devenues un traumatisme commun surtout chez les jeunes enfants. Le traitement de ce type de brûlures est non seulement un challenge, mais il est aussi controversé quant au choix de la greffe de peau mince ou de peau totale pour couvrir la perte de substance. Le but de cette revue est d'évaluer l'algorithme thérapeutique dans notre service. Nous avons conduit une étude rétrospective incluant tous les patients entre 0 et 5 ans admis dans notre département de 2008 à 2012 avec des brûlures palmaires du 2e degré superficiel ou du 2e degré profond. L'âge moyen était de 16,1 mois. Dans 27 cas (52,9%), nous avons pu fermer la plaie sans greffe. Le temps de cicatrisation moyen dans ce groupe était de 13,3 jours. Deux de ces 27 patients ont développé des rétractions en flexion, mais aucune n'a nécessité d'opération secondaire. 24 patients ont été traités par greffe de peau mince. La période moyenne entre le jour de la brûlure et le temps chirurgical était de 14,2 jours. Les rétractions ont été observées chez 5 patients (20,8%) qui avaient subi une greffe. La reconstruction secondaire par greffe de peau totale fur réalisée chez tous les 5, ce qui représente 9,8% de tous les patients. Nous considérons que la greffe de peau mince est rapide, aisée et efficace avec une morbidité minimale ou nulle du site donneur et des suites inflammatoires insignifiantes. La réduction du temps de cicatrisation après la greffe, autorise une rééducation précoce.

Toxic epidermal necrolysis and Stevens-Johnson syndrome at the Prague Burn Centre 1998-2008.

BACKGROUND: Toxic epidermal necrolysis (TEN) and Stevens-Johnson syndrome (SJS) are skin disorders characterized by extensive necrosis of the mucous membranes and the epidermis caused by an autoimmune response. OBJECTIVES: To present experience of treating TEN and SJS at the Prague Burn Centre (PBC) 1998-2008. METHODS: 22 patients with the diagnosis TEN or SJS were enrolled. We collected data including the extent of the skin involvement, the ratio of men:women, the average age, the mortality rate, presence of comorbidities, the length of hospital stay, the period from the first symptoms to the admission to the PBC, corticosteroids administration prior to admission. RESULTS: 82% patients had injuries larger than 30% of body surface area. The ratio of men:women was 1 : 1.5; the average age was 48.4 years; the mortality was 32%. Significant comorbidities were present in 41% of the cases. The average length of hospital stay was 12.9 days. The period from the first symptoms to the admission to the PBC was 9.6 days; corticosteroids were administered to 68% of the cases. CONCLUSION: Treatment strategies at the PBC are based upon a multidisciplinary approach and focus on the general principles of treating patients with extensive skin loss. Corticosteroids must be avoided, antibiotics are not indicated and intravenous immunoglobulins are not justified in the standard therapy. Early diagnosis, prompt transport to a burn center are essential for patients outcomes. The medical community should be informed about these rare but potentially life threatening diseases.

A Pan-European evaluation of residential burns camps for children and young people.

INTRODUCTION: Residential camps for children who have experienced a severe burn have existed for over 20 years. The idea stemmed from recognition that children with burns face additional challenges, both physical and psychological, and therefore need long-term psychosocial support away from the acute care setting. Whilst individual programmes have published positive evaluation findings, there have been no cross-regional evaluations undertaken to date. METHODS: Five European burn camp programmes agreed to take part in a cross-regional study to assess the benefits as reported by participants. Shared objectives included: giving children the opportunity to experience success through overcoming challenging activities, enhancing self-esteem and confidence and enabling children to share their experiences of having a burn with peers and staff in a supportive environment. Each site collected qualitative feedback from children, parents and staff using a common framework. Simple Likert scale data were also collected. Each site coded responses into themes which were then collated at one site. RESULTS: 104 children, 57 parent/carers and 50 staff took part in the cross-regional evaluation. Children were aged between 5 and 18 years. 98% of children reported that they had enjoyed camp, in particular the activities and the sense of achievement they brought, along with the ability to gain support and friendship from peers and staff. A large proportion felt that they had benefitted from having the opportunity to share their experiences of having a burn with peers, leaving them feeling less isolated. In addition some comments related to boosting confidence and self-esteem and mastering new skills. Parent/carers again cited the increase in their child's confidence in self and appearance as key benefits of the camps. Staff reports also included the benefits for burn care teams by increasing awareness of patient needs and improving multidisciplinary team working. DISCUSSION: The study highlighted the generic benefits of burn camps by collapsing themes across five different sites. Whilst this minimised the localised differences between camps, further research could be used to analyse these subtle differences in greater detail. Some consideration was made of the language barriers between sites which could have effected the interpretation of some of the individual themes. A multi-methodological approach could be used to reduce this effect in future.

Specific aspects of the treatment of patients with multiple mechanical and burn injuries.

Fewer than 5 percent of all burn patients sustain other traumatic injuries before, during, or immediately after their accident. Multiple traumas associated with a burn injury create special problems during the care of the thermally injured patients. Conversely, the burn injury often complicates the diagnosis and treatment of the trauma. The combination of mechanical and burn injuries can be divided into two types: a) any associated fracture located outside the burned area, or b) fractured bones within the burned area. This situation represents a critical factor which must be taken into account during treatment procedures. The following options should be considered: in fractures outside the burned area, there would be no difference in standard, skeletal treatment procedures. For the treatment of fractures in burned areas (mostly on the extremities), the optimal procedure is osteosynthesis within 48 hours of the burn trauma, when the burn wound is nearly sterile (without significant bacterial colonisation). We prefer two-team surgery. Firstly, a trauma surgeon performs osteosynthesis and, after that, burn surgeons treat the burns. The optimal approach in full-thickness burns would be necrectomy and autografting. This is, however, not always possible, because of the overall condition of the patient who has been continuously resuscitated during the shock period. All individual factors must be considered during the decision-making process.

The enigma of Paracoccus pantotrophus cytochrome cd(1) activation.

Paracoccus pantotrophus cytochrome cd(1) nitrite reductase is isolated under aerobic conditions from anaerobically grown cells in an inactive form. This state requires reductive activation to make it catalytically competent for nitrite reduction. In this work, we discuss the methods of this reductive activation and its consequences for the cell.

Early and late fatal complications of inhalation injury.

Severe inhalation injury causes a substantial deterioration in the prognosis and increases the general mortality of patients with extensive burns. Recently, in particular due to the development of invasive monitoring of patients and effective treatment of acute burn shock, we encounter with increasing frequency patients who survive the acute stage, including complications such as ARDS, and reach the stage of late complications. The latter include tracheooesophageal fistulas that develop on the basis of pressure ulcers and chondromalacia, usually at the site of the balloon of the tracheostomic cannula, and the overproduction of fibrous tissue in the area of the airways which leads to the development of stenosis, pulmonary fibrosis and bronchiectasia. Frequently, different early and late complications combine.

Burns of the perineum and anus.

One of the critical sites of the thermal injuries is the region of the perineum. Burns of the perineum are relatively frequent, while affections of the anus and sphincters are rare. At the Prague Burns Centre, University Hospital Královské Vinohrady, two patients were treated with this kind of injury. The site of the burns proved in both instances decisive for treatment and for subsequent prognosis. The surgical procedures (necrectomy and autotransplantation) had to be prepared with regard to the case-histories: in the 11-year-old boy by colostomy and in the adult man suffering from muscular dystrophy by a synthetic low-residue diet.