V.A.C. Therapy in the management of paediatric wounds: clinical review and experience

The efficacy and safety of negative pressure wound therapy in paediatric burns: a systematic review and meta-analysis of randomized controlled trials

BACKGROUND

Although the effective application of negative pressure wound therapy (NPWT) has been exemplified in diverse clinical studies, its potential and safety, specifically regarding paediatric burns, are yet to be fully confirmed. Our most recent systematic review and meta-analysis strive to investigate the impact of NPWT within the realm of paediatric burns.

METHODS

We sourced relevant articles from databases including PubMed, Embase, the Cochrane Database, Web of Science, the International Clinical Trials Registry Platform, China National Knowledge Infrastructureris, the VIP Database for Chinese Technical Periodicals, and the Wanfang database. We defined the primary outcome measure as the healing time, while healing rate, numbers of dressing changes, detection rate of positive bacteria, incidence rate of adverse reactions, scar scale scores, and treatment costs were considered as secondary outcome measures. Pooling of data was conducted and the results were articulated as relative risk (RR), mean difference (MD), and standardized mean difference (SMD), all with a 95% confidence interval (CI).

RESULTS

In this systematic review and meta-analysis, a total of 12 studies involving 1033 individuals were examined, including 559 paediatric burn patients who underwent NPWT (referred to as the treatment group) and 543 patients who received treatments other than NPWT (referred to as the control group). The amalgamated data from these studies exhibited that the treatment group experienced significant reductions in healing time (SMD = -1.60; 95% CI: -2.26 - -0.95; p < 0.001, I2 = 92.8%), the number of required dressing changes (SMD = -4.6; 95% CI: -5.84 - -3.36; p < 0.001, I2 = 92.4%), positive bacteria detection rate (RR = 0.61; 95% CI: 0.26-1.46; p = 0.004, I2 = 81.8%), incidence of adverse reactions (RR = 0.61; 95% CI: 0.33-1.12; p = 0.005, I2 = 68%), scar scale scores (SMD = -1.66; 95% CI: -2.54 - -0.79; p < 0.001, I2 = 89.4%), as well as in treatment costs (SMD = 0.92; 95% CI: -1.66-3.49; p < 0.001, I2 = 98.4%). Additionally, these individuals showed an increased rate of healing (RR = 1.17; 95% CI: 0.99-1.39; p < 0.001, I2 = 78%). Subgroup analysis did not find that the degree of burn was one of the sources of high heterogeneity.

CONCLUSION

Our meta-analysis points to the effectiveness of NPWT in treating paediatric burns. Notably, it significantly mitigates healing duration, frequency of dressing alterations, positive bacterial detection rate, adverse reactions incidence, scar scale scores and treatment costs, all while propelling the acceleration of wound healing.

Use of Vacuum-Assisted Closure to Reduce the Likelihood of Wound Complications After Limb-Sparing Resection of Pediatric Primary Bone Sarcomas of the Femur

BACKGROUND

Limb-sparing surgery is the standard of care for primary bone tumors. However, such procedures are associated with high rates of wound complications, specifically in lower-extremity surgeries. Therefore, identifying and implementing interventions to minimize the likelihood of wound complications after limb-sparing resection of the lower extremity is crucial.

METHODS

Patients who underwent limb-sparing osteosarcoma or Ewing sarcoma resection during a 7-year period at a single institution were retrospectively reviewed. Data were collected on 39 patients who underwent limb-sparing resection of the femur. Patient demographics, tumor characteristics, and perioperative and postoperative data were extracted and analyzed. Patients who underwent resection before April 2017 received conventional postoperative incision dressings. Starting in April 2017, patients received vacuum-assisted closure (VAC) with the 3 M™ Prevena VAC system after surgical closure. Eighteen patients received conventional postoperative incision dressing, and 21 received incisional wound VAC. A wound complication was defined as any Clavien-Dindo classification greater than 0 within a 28-day postoperative period.

RESULTS

Patients who received postoperative incisional wound VAC had lower rates of wound complications than those who received conventional incision dressings (14% vs. 50%; p = 0.035). Additionally, patients in whom wound complications developed had a longer average hospital stay than those without wound complications (5 days vs. 4 days; p = 0.029).

CONCLUSIONS

Wound complications prolong the hospital stay and can delay adjuvant chemotherapy for bone tumors. The use of postoperative incisional wound VAC is associated with less likelihood of wound complications and should be considered in any high-risk surgical closure.

LEVEL OF EVIDENCE

Level III Treatment Study.

Surgical limits, pitfalls, and potential solutions in kyphectomy in myelomeningocele: three cases and systematic review of the literature

OBJECTIVES

To describe surgical treatment of 3 cases of severe and progressive thoracolumbar kyphosis in myelomeningocele and provide a systematic review of the available literature on the topic.

METHODS

Medical records and pre- and post-operative imaging of 3 patients with thoracolumbar kyphosis and myelomeningocele were reviewed. A database search was performed for all manuscripts published on kyphectomy and/or surgical treatment of kyphosis in myelomeningocele. Patients' information, preoperative kyphosis angle, type of surgery, levels of surgery degrees of correction after surgery and at follow-up, and complications were reviewed for the included studies.

RESULTS

Three cases underwent posterior vertebral column resection (pVCR) of 2-4 segments at the apex of the kyphosis (kyphectomy). Long instrumentation was performed with all pedicle screws constructed from the thoracic spine to the pelvis using iliac screws. According to literature review, a total of 586 children were treated for vertebral kyphosis related to myelomeningocele. At least one vertebra was excised to gain some degree of correction of the deformity. Different types of instrumentation were used over time and none of them demonstrated to be superior over the other.

CONCLUSION

Surgical treatment of progressive kyphosis in myelomeningocele has evolved over the years incorporating all major advances in spinal instrumentation techniques. Certainly, the best results in terms of preservation of correction after surgery and less revision rates were obtained with long construct and screws. However, complication rate remains high with skin problems being the most common complication. The use of low-profile instrumentation remains critical for treatment of these patients.

Comparison of Negative Pressure Wound Therapy (NPWT) and Classical Wet to Moist Dressing (WtM) in the Treatment of Complicated Extremity Wounds in Children

Treating complicated wounds in the pediatric population using traditional wet to moist wound dressing methods is not always appropriate due to the frequent need to change dressings daily or even a number of times a day, causing distress to the patient. Topical negative pressure is a method that allows for fewer dressings and provides localized benefits, thus accelerating wound healing. The merits of this therapy have been proven in studies on adults, but research on the pediatric population is scarce. Here we intend to present the results of negative pressure wound therapy (NPWT) on 34 pediatric patients (study group) and compare them with 24 patients (control group) treated with the traditional wet to moist dressing for complicated wounds. The results show that topical negative pressure wound therapy is a safe method that downgrades a wound from a complicated to a simple one and allows definitive coverage using a simpler technique with fewer wound dressings. The scars of the patients in the study group exhibited a better result on a visual scar scale. The patients in the control group had a shorter hospital stay. Based on the recorded results, we were able to make treatment recommendations.

Vacuum-assisted staged omphalocele reduction: A preliminary report

INTRODUCTION

Omphalocele represents a rare congenital abdominal wall defect. In giant omphalocele, due to the viscero-abdominal disproportion, gradual reintegration of eviscerated organs is often associated with medical challenges. We report our preliminary experience combining staged gravitational reduction with vacuum (VAC) therapy as a novel approach for treatment of giant omphalocele.

PATIENTS AND METHODS

Retrospective chart review of six patients (five females) born between September 2018 and May 2022 who underwent staged reduction of giant omphalocele in conjunction with VAC therapy was conducted. Treatment was performed at two German third-level Pediatric Surgery Departments. Biometric and periprocedural data were assessed. Main outcome measure was the feasibility of VAC therapy for giant omphalocele. Data are reported as median and interquartile range (Q1-Q3).

RESULTS

Gestational age was 37 (37-38) weeks, and birth weight was 2700 (2500-3000) g. VAC dressing was changed every 3 (3-4) days until abdominal fascia closure at the age of 9 (3-13) days. Time to first/full oral feeds was 3 (1-5)/20 (12-24) days with a hospital stay of 22 (17-30) days. Follow-up was 8 (5-22) months and complications were of minor extent (none: n = 2; Clavien-Dindo I: n = 3; Clavien-Dindo II: n = 1), comprising a delayed neo-umbilical cord rest separation (n = 2) and/or concomitant neo-umbilical site infection (n = 2) with no repeat surgery.

CONCLUSION

In neonates with giant omphalocele, VAC constitutes a promising and technically feasible enhancement of the staged gravitational reduction method. This study shows evidence that VAC may accelerate restoration of the abdominal wall integrity in giant omphalocele, thus minimizing associated comorbidities inherent to a prolonged hospitalization.

Epidemiology, Pathophysiology, and Management Strategies of Neonatal Wound Care

Guidelines for neonatal skin care are scarce, and there is no consensus on the best management practices for neonatal skin breakdown. This review presents the pathology and phases of wound healing, reasons for neonatal skin fragility, and approaches to recognition of commonly encountered neonatal wounds. This review also provides general strategies for neonatal wound prevention, care, dressing, and management to avoid further damage to the fragile neonatal skin. The importance and role of retaining moisture in expediting wound healing is discussed, as well as updated classifications on how to grade and assess pressure ulcers and the role of negative pressure wound therapy and silver dressings. Lastly, this review discusses prevention and treatment options for surgical wounds, intravenous extravasation wounds, congenital wounds, and thermal injuries, in addition to how to differentiate these wounds from the common diaper dermatitis and contact dermatitis.

Negative Pressure Wound Therapy in Pediatric Burn Patients: A Systematic Review

Significance: Negative pressure wound therapy (NPWT) requires the placement of a dressing over a wound, covered with an adhesive film, and applying to these dressing a negative pressure in a controlled fashion. This therapy is a powerful complement to surgical care of wounds. Data are however poor on its use in pediatric burns. Recent Advances: This systematic review, including a total of 466 patients, shows that NPWT as the initial treatment for burned children and after skin grafting has been shown to produce promising results. In the majority of studies, skin graft take rate is close to 100%. This therapy is particularly beneficial in the pediatric population because of less frequent dressing changes and early mobilization. NPWT devices accurately quantify burns water losses and allow tailoring liquid resuscitation. Critical Issues: NPWT is not in the subject of controlled clinical trials in pediatric; most publications are case reports or retrospective reviews. The sporadic complications include bleeding, local infections, and mechanical device issues. Future Directions: NPWT has been used in 2-month up to 18-year-old children with deep second- to third-degree burn of multiple etiologies, from a few days up to several months, on small to 40% total body surface area (%), and in difficult areas. Data gathered provide empirical guidelines on NPWT use in pediatric burns using continuous mode with a pressure of -50 to -75 mmHg for children younger than 2 years, and -75 to -125 mmHg in children over 2 years of age. Prospective randomized studies are needed to provide validated rules.

Treadmill Hand Injuries Among Children: A Retrospective Case Series From Hospitalized Patients

Background: With the progress of modernization, treadmill hand injury in pediatric population is taking on a global trend in recent years. The purpose of this study was to investigate the epidemiology and clinical features in a developing country, thereby providing some experience in the treatment and prevention of this particular type of injury. Methods: A 5-year retrospective review of patients with treadmill hand injury in Burn and Plastic Surgery ward at Children' Hospital of Chongqing Medical University was conducted. Demographics, injury details, therapy performed, length of hospital stay, complications, and outcome were analyzed. Results: Forty-six patients were surveyed, with a mean age of 3.5 ± 2.0 years old, including 24 males and 22 females. Injuries (77.8%) occurred between dinner to bedtime, and 95.7% happened indoors. Fingers were the most vulnerable part, of which the middle finger, ring finger, and index finger were the top three ones. The mean body surface area (BSA%) was 0.3 ± 0.2, but at least in deep dermal. Dressing changes, full-thickness skin grafts (FTSG), and Negative Pleasure Wound Therapy (NPWT) assisted FTSG were performed. The scar contracture, as the most severe complication, occurred in 26 patients, of which 22 originally received dressing changes at the time of injury. Conclusion: Treadmill hand injury in children should be highly regarded. Compared with conservative dressing changes, surgical intervention from a professional team may achieve more satisfactory prognosis and fewer complications. A prevention strategy based on "Time-Space-Person" was summarized according to its epidemiological characteristics, may help to decrease the incidence of this specific type of injury theoretically.

Management of lower extremity traumatic injuries with negative pressure wound therapy: Experience of a pediatric plastic surgery department

INTRODUCTION

Extensive lower limb traumatic injuries are particularly challenging when they associate skin and soft tissue defects, moreover when the patient is a child. In view of more frequent recommendations and reports of negative pressure wound therapy (NPWT) use for severe trauma and extensive soft tissue defects of the lower extremity, we aimed at reviewing the indications and outcomes of this technique in our pediatric plastic surgery department.

METHOD

We performed a retrospective study for the period 2016-2019, in order to identify patients having suffered injuries of the ankle and foot, for who NPWT was used in the therapeutic protocol.

RESULTS

For the study period we identified a total of 9 children with ankle and foot injuries who had NPWT in their therapeutic protocol. The average age was 10 years (range 3 years 5 months to 14 years 4 months) and 8 of them were pedestrians, victims of traffic accidents. Five patients presented with associated injuries and fractures in other anatomic locations. NPWT was started 1-3 days after admission and it was used in average for 21.77 days, with good results in all cases. For 8 patients NPWT was sufficient to contract the wound and cover exposed bone and tendons before closing with split thickness skin graft (STSG). One patient needed also a free muscular flap transfer before grafting. All patients achieved complete healing and started physical therapy before discharging.

CONCLUSION

NPWT has proven to be an easy to use, safe and effective therapeutic tool for pediatric patients, with considerable improvement for healing in case of traumatic injuries of foot and ankle, presenting extensive skin and soft tissue defects and bone exposure in children. NPWT is also suitable for children since its use implies less frequent dressing changes, and decreases the level of pain and anxiety, and spares donor areas needed for more complicated procedures and, by creating an optimal grafting bed, it ensures good outcomes, in the short term and long term as well.

Negative pressure wound treatment in a neonate with epidermolysis bullosa simplex severe generalized: A case report

Negative pressure wound treatment (NPWT) is very useful for the treatment of chronic or deep wounds and in the setting of skin grafting. Due to the need for adhesive dressings, this treatment is rarely attempted in patients with skin fragility secondary to hereditary epidermolysis bullosa (EB). We present a neonate with EB simplex, severe generalized in a critical clinical state where NPWT was successfully applied and describe the measures taken to avoid any further skin damage. This case is of clinical importance to physicians and health care staff treating patients with this rare disease where additional therapeutic measures for the treatment of chronic wounds are scarce.

Pediatric necrotizing soft tissue infection after elective surgery: A case report and literature review

INTRODUCTION

Necrotizing soft tissue infections (NSTIs) are rare but often lethal. Early diagnosis and aggressive surgical debridement are essential to achieve the best possible outcome.

CASE PRESENTATION

A 12-year old boy was diagnosed with a necrotizing soft tissue infection following elective revision surgery for functional impairment resulting from scar tissue of the neck. Fever and inflammation of the surgical wound manifested 24-36 hours postoperatively. Antibiotic therapy with amoxicillin-clavulanic acid was initiated, but the patient was unresponsive. Ultrasonography, a wound culture and surgical exploration confirmed the diagnosis. The culture was positive for a Streptococcus pyogenes infection and antibiotic treatment was switched to penicillin and clindamycin. Following the diagnosis, surgical debridement was performed subcutaneously, and only necrotic tissue was removed to preserve as much skin tissue as possible. After eradication of the infection, vacuum-assisted closure of the wound was used to close the subcutaneous space. The patient was discharged after 40 days.

CONCLUSION

In this patient, we treated a necrotizing soft tissue infection with antibiotics, skin sparing surgeries and negative pressure wound therapy (NPWT). We used ultrasonography as imaging technique to help with the diagnosis. The extensiveness of surgical debridement was rather limited. We focused on opening all affected fascial layers. The surgical debridement was subcutaneous, and only necrotic tissue was removed. Because of the location in the neck, we tried to avoid an aggressive skin debridement to preserve as much skin tissue as possible. Negative pressure wound therapy is not frequently used in this context but it contributed to an enhanced wound healing. Ultrasonography for diagnosing NSTIs is useful, but the clinical findings and an explorative surgery will remain most important.

Terapia de presión negativa en pediatría

Introducción. La terapia de presión negativa es un recurso utilizado cada vez con mayor frecuencia en el manejo de heridas complejas en pediatría. El objetivo de este estudio fue describir la experiencia con esta terapia en diferentes situaciones clínicas. Métodos. Se llevó a cabo un estudio descriptivo retrospectivo en un grupo de pacientes pediátricos en quienes se utilizó la terapia de presión negativa entre el año 2010 y el 2015. Se analizaron las variables sociodemográficas, los diagnósticos que indicaron la terapia, el tiempo de uso, sus complicaciones y la mortalidad. Resultados. Se incluyeron 41 pacientes. La terapia se indicó en 39 casos con heridas localizadas en el abdomen, en uno con infección de los tejidos blandos perianales y en otro con una herida de esternotomía infectada. De las heridas abdominales, 14 fueron por complicaciones relacionadas con apendicitis aguda, 6 por enfermedades relacionadas con megacolon, 5 por obstrucción intestinal, 4 para el manejo de fístulas, 4 por enterocolitis necrosante del recién nacido, 3 por pancreatitis aguda y 3 por otras causas. El tiempo promedio de uso de la terapia fue de 7 días. Se presentaron fallas en el sistema de vacío en dos pacientes, pero no hubo complicaciones por el uso de la terapia. Dos pacientes fallecieron por complicaciones relacionadas con su enfermedad de base. Conclusión. La terapia de presión negativa es un recurso efectivo en el manejo de heridas complejas en la población pediátrica.

Traditional and advanced therapeutic modalities for wounds in the paediatric population: an evidence-based review

OBJECTIVE

Children can have non-healing wounds due to a wide range of pathologies, including epidermolysis bullosa (EB), pilonidal disease and Stevens-Johnson syndrome, with some causes being iatrogenic, including extravasation injuries and medical device-related hospital-acquired pressure ulcers. Furthermore, paediatric wounds are vastly different from adult wounds and therefore require a different treatment approach. While there are numerous types of dressings, topical remedies, and matrices with high-tier evidence to support their use in adults, evidence is scarce in the neonatal and paediatric age groups. The purpose of this review is to discuss the basic principles in paediatric wound management, as well as to present new treatment findings published in the literature to date. The benefits and risks of using different types of debridement are discussed in this review. Various topical formulations are also described, including the need to use antibiotics judiciously.

METHOD

Databases were searched for relevant sources including Pubmed, Embase, Web of Science and DynaMed. Search terms used included 'wound care', 'wound management', 'paediatrics', 'children', 'skin substitutes', and 'grafts'. Additionally, each treatment and disease entity was searched for relevant sources, including, for example: 'Apligraf', 'dermagraft', 'Manuka honey', 'antibiotic', 'timolol', and 'negative pressure wound therapy' (NPWT).

RESULTS

Amniotic membrane living skin equivalent is a cellular matrix that has been reportedly successful in treating paediatrics wounds and is currently under investigation in randomised clinical trials. Helicoll is an acellular matrix, which shows promise in children with recessive dystrophic EB. NPWT may be used as a tool to accelerate wound closure in children; however, caution must be taken due to limited evidence to support its safety and efficacy in the paediatric patient population. Integra has been reported as a useful adjunctive treatment to NPWT as both may act synergistically. Hospitalised children and neonates frequently have pressure ulcers, which is why prevention in this type of wound is paramount.

CONCLUSION

Advancements in wound care are rapidly expanding. Various treatments for non-healing wounds in paediatric and neonatal patients have been reported, but high tier evidence in these populations is scarce. We hope to shed light on existing evidence regarding the different therapeutic modalities, from debridement techniques and dressing types to tissue substitutes and topical remedies. There have been promising results in many studies to date, but RCTs involving larger sample sizes are necessary, in order to determine the specific role these innovative agents play in paediatric wounds and to identify true safety and efficacy.

Inpatient Versus Outpatient Management of Negative Pressure Wound Therapy in Pediatric Patients

BACKGROUND

Negative pressure wound therapy (NPWT) is commonly used to manage complex wounds in the pediatric population. With recently developed portable NPWT devices, providers have the opportunity to transition NPWT to the outpatient setting. However, there are no studies describing outpatient NPWT in pediatric patients. Therefore, the purpose of our study was to leverage a population-level analysis to advance our current knowledge about outpatient NPWT use in pediatric patients.

MATERIALS AND METHODS

We analyzed the Truven Health Analytics MarketScan Commercial Claims Database from 2006 to 2014 to identify children treated with NPWT. We compared patient characteristics, indications, complications before and after NPWT, health care utilization within 30 d of NPWT initiation, and health care cost profile of patients treated with NPWT primarily as outpatients versus inpatients. Outpatient NPWT was defined as patients with ≤50% of NPWT coded during an inpatient hospitalization, whereas inpatient NPWT was defined as patients with >50% of NPWT.

RESULTS

We identified 3184 patients (1621 inpatients and 1563 outpatients) aged 0-17 y, who were treated with NPWT from 2006 to 2014. Outpatient NPWT was implemented across multiple ages, comorbidities, and indications, with a low complication rate (2.4%). After controlling for hematologic comorbidity and indications, outpatient NPWT was associated with lower risk of complications (odds ratio: 0.57, 95% confidence interval 0.38-0.86) and lower median total costs ($5602.03) compared with inpatient ($15,233.21) therapy.

CONCLUSIONS

Outpatient NPWT management in pediatric patients was associated with low complication rates. Additional studies are necessary to determine the most overall cost-effective treatment setting for NPWT in the pediatric population.

Negative-Pressure Wound Therapy in Infants and Children: A Population-Based Study

BACKGROUND

Although the safety and benefits of negative-pressure wound therapy (NPWT) have been clearly demonstrated in the adult population, studies evaluating the safety and describing the use of NPWT in the pediatric population have been limited. Given this paucity, the goals of this study were to (1) evaluate the literature dedicated to NPWT use in infants and children and (2) leverage a population-level analysis to describe the experience of NPWT use in the pediatric population.

MATERIALS AND METHODS

We performed a literature review and analyzed the Truven Health Analytics MarketScan Commercial Claims Databases from 2006 to 2014 to identify infants and children treated with NPWT. We evaluated patient characteristics, indications, complications before and after NPWT placement, and health care utilization within 30 d of NPWT placement.

RESULTS

We identified 457 articles, 11 of which fit our inclusion criteria. Most studies (65.2%) were case reports or series with less than 10 patients. In addition, we identified 3184 patients aged younger than of 18 y who were treated with NPWT between 2006 and 2014. Serious incident complications within 30 d after NPWT placement were rare (bleeding 0.6%, septicemia 0.5%, and sepsis 0.5%).

CONCLUSIONS

Despite the lack of robust studies, NPWT is widely used for many indications and across different ages and providers. Given the low incidence of serious complications, we conclude that NPWT use in infants and children is safe and can be effectively used by different providers spanning surgical and nonsurgical disciplines.

Study of negative pressure wound therapy as an adjunct treatment for acute burns in children (SONATA in C): protocol for a randomised controlled trial

BACKGROUND

Although negative pressure wound therapy (NPWT) is widely used in the management of several wound types, its efficacy as a primary therapy for acute burns has not yet been adequately investigated, with research in the paediatric population particularly lacking. There is limited evidence, however, that NPWT might benefit children with burns, amongst whom scar formation, wound progression and pain continue to present major management challenges. The purpose of this trial is to determine whether NPWT in conjunction with standard therapy accelerates healing, reduces wound progression and decreases pain more effectively than standard treatment alone.

METHODS/DESIGN

A total of 104 children will be recruited for this trial. To be eligible, candidates must be under 17 years of age and present to the participating children's hospital within 7 days of their injury with a thermal burn covering <5% of their total body surface area. Facial and trivial burns will be excluded. Following a randomised controlled parallel design, participants will be allocated to either an active control or intervention group. The former will receive standard therapy consisting of Acticoat™ and Mepitel™. The intervention arm will be treated with silver-impregnated dressings in addition to NPWT via the RENASYS TOUCH™ vacuum pump. Participants' dressings will be changed every 3 to 5 days until their wounds are fully re-epithelialised. Time to re-epithelialisation will be studied as the primary outcome. Secondary outcomes will include pain, pruritus, wound progression, health-care-resource use (and costs), ease of management, treatment satisfaction and adverse events. Wound fluid collected during NPWT will also be analysed to generate a proteomic profile of the burn microenvironment.

DISCUSSION

The study will be the first randomised controlled trial to explore the clinical effects of NPWT on paediatric burns, with the aim of determining whether the therapy warrants implementation as an adjunct to standard burns management.

TRIAL REGISTRATION

Australian New Zealand Clinical Trials Registry, ACTRN12618000256279 . Registered on 16 February 2018.

Therapeutic efficacy of vacuum sealing drainage-assisted irrigation in patients with severe multiple-space infections in the oral, maxillofacial, and cervical regions

OBJECTIVE

We compared the clinical efficacy between the vacuum sealing drainage (VSD)-assisted irrigation technique and traditional abscess incision and drainage technique in the treatment of severe multiple-space infections in the oral, maxillofacial, and cervical regions.

METHODS

Data of 73 patients with severe oral, maxillofacial, and cervical infections, who were admitted to the Oral and Maxillofacial Surgery Department at the First Affiliated Hospital of Fujian Medical University between June 2014 and May 2017, were retrospectively collected. Patients were divided into two groups based on the treatments. The cure duration, incision length, physician workload (frequency of dressing-change), and treatment costs were compared between the two groups.

RESULTS

Of 73 patients, 38 were treated with the VSD-assisted irrigation technique, and 35 with the traditional technique. All patients were cured following treatment. The cure duration, surgical scar length, and physician workload were smaller for the former group than for the latter group (p < 0.05). There was no difference in the treatment costs between the two groups (p > 0.05).

CONCLUSION

VSD-assisted irrigation technique used in the treatment of severe multiple-space infection in the oral and maxillofacial cervical regions shows favorable clinical effects and enables short treatment duration, lesser pain-experience, and high clinical and therapeutic efficacy.

Delayed deep dermal necrosis after jellyfish sting in a 4-year-old female infant

We report the case of a 4-year-old female infant who developed ongoing deep dermal necrosis of the bilateral legs after jellyfish contact in Thailand. Stepwise radical debridement and vacuum assisted wound therapy seemed to be an effective strategy to prevent progressive soft tissue loss.

[Reconstruction of ankle and foot with combination of free perforator flaps and skin graft]

Objective

To evaluate the clinical outcomes of free perforator flaps combined with skin graft for reconstruction of ankle and foot soft tissue defects.

Methods

Between June 2014 and October 2015, 20 cases of ankle and foot soft tissue defects were treated. There were 16 males and 4 females, aged from 19 to 61 years (mean, 43.3 years). Injury was caused by traffic accident in 7 cases, by crashing in 9 cases, and machine twist in 4 cases. The locations were the ankle in 6 cases, the heel in 3 cases, the dorsum pedis in 4 cases, and the plantar forefoot in 7 cases of avulsion injury after toes amputation. The size of wound ranged from 15 cm×10 cm to 27 cm×18 cm. The time from injury to treatment was from 11 to 52 days (mean, 27 days). The anterolateral thigh perforator flap was used in 11 cases, thoracodorsal antery perforator flap in 3 cases, medial sural artery perforator flap in 4 cases, deep inferior epigastric perforator flap in 1 case, and anteromedial thigh perforator flap in 1 case, including 5 chimeric perforator flaps, 5 polyfoliate perforator flaps, 3 flow-through perforator flaps, and 3 conjoined perforator flaps. The size of the perforator flap ranged from 10.0 cm×6.5 cm to 36.0 cm×8.0 cm, the size of skin graft from 5 cm×3 cm to 18 cm×12 cm.

Results

Venous crisis occurred in 2 flaps which survived after symptomatic treatment; 18 flaps survived successfully and skin grafting healed well. The follow-up time ranged 4-18 months (mean, 8.3 months). The flaps had good appearance, texture and color, without infection. The patients could walk normally and do daily activities. Only linear scars were observed at the donor sites.

Conclusion

Free perforator flap can be used to reconstruct defects in the ankle and foot, especially in the weight-bearing area of the plantar forefoot. A combination of free perforator flap and skin graft is ideal in reconstruction of great soft tissue defects in the ankle and foot.

Enhancement of Bone-Marrow-Derived Mesenchymal Stem Cell Angiogenic Capacity by NPWT for a Combinatorial Therapy to Promote Wound Healing with Large Defect

Poor viability of engrafted bone marrow mesenchymal stem cells (BMSCs) often hinders their application for wound healing, and the strategy of how to take full advantage of their angiogenic capacity within wounds still remains unclear. Negative pressure wound therapy (NPWT) has been demonstrated to be effective for enhancing wound healing, especially for the promotion of angiogenesis within wounds. Here we utilized combinatory strategy using the transplantation of BMSCs and NPWT to investigate whether this combinatory therapy could accelerate angiogenesis in wounds. In vitro, after 9-day culture, BMSCs proliferation significantly increased in NPWT group. Furthermore, NPWT induced their differentiation into the angiogenic related cells, which are indispensable for wound angiogenesis. In vivo, rat full-thickness cutaneous wounds treated with BMSCs combined with NPWT exhibited better viability of the cells and enhanced angiogenesis and maturation of functional blood vessels than did local BMSC injection or NPWT alone. Expression of angiogenesis markers (NG2, VEGF, CD31, and α-SMA) was upregulated in wounds treated with combined BMSCs with NPWT. Our data suggest that NPWT may act as an inductive role to enhance BMSCs angiogenic capacity and this combinatorial therapy may serve as a simple but efficient clinical solution for complex wounds with large defects.

Novel use of porcine urinary bladder matrix for pediatric pilonidal wound care: preliminary experience

BACKGROUND

Extracellular matrix is used in various applications. We present our preliminary experience using a new device that consists of a porcine extracellular matrix with an epithelial basement membrane (MatriStem(®), ACell, Inc. Columbia, MD, USA) for adolescent pilonidal disease.

METHODS

A retrospective review of four patients with pilonidal disease was undertaken. Three occurred in the gluteal cleft, and the fourth in the umbilicus. In the first patient, the wound deficit was filled with lyophilized MicroMatrix powder and a sheet of Multilayer Wound Matrix was placed to cover the wound. In the second patient, two sinus tracts were debrided, packed with MicroMatrix, and a sheet of fenestrated Burn Matrix was applied. In the third patient, MicroMatrix and Surgical Matrix PSMX (six-layer) was applied as a roll filling the dead space. In the last patient, an umbilical sinus 3 cm deep was packed with MicroMatrix powder followed by a rolled sheet of 2-ply Surgical Matrix RS. Patients were evaluated weekly post-operatively, and more MicroMatrix and sheet material was added if a wound deficit was still present. Measurements were taken in two dimensions, diameter and depth, to characterize wounds.

RESULTS

Resolution of wound deficit was graphed versus time. Pain was assessed by scoring 0-10. Rapid wound closure was achieved. Two of the patients had failed wound healing with saline dressing changes prior to MatriStem application. These two patients in particular were highly satisfied with the comfort of the MatriStem approach relative to their time with saline dressings. Most had no pain after 1 week when bolster sutures were removed.

CONCLUSION

In the treatment of open pilonidal wounds in adolescents, porcine urinary bladder matrix wound care devices offer closure times and cost similar to well-established methods while offering a substantial advantage in terms of patient comfort and convenience. This preliminary experience supports a prospective study.

Excision and Primary Closure May be the Better Option in the Surgical Management of Pilonidal Disease in the Pediatric Population

The optimal management of pilonidal disease in the pediatric population is still debated. We conducted a retrospective review of patients 21 years old and younger who underwent surgical management for pilonidal disease between 2009 and 2013 at a single pediatric institution. Sixty patients (41.7% male) were included in the analysis, with a mean age of 15.0 years (range, 13–20). Twelve (20%) had a prior drainage procedure for pilonidal abscess before the definitive operative treatment. After excision to the presacral fascia, 36 (60%) had primary closure, 17 (28.3%) were left to heal by secondary intention, and 7 (11.7%) had flap closure. Overall recurrence rate was 41.7 per cent with 33.3 per cent in the primary, 58.8 per cent in the secondary, and 42.9 per cent in the flap group, respectively. Ten (16.7%) patients developed postoperative complications, which were similar among surgical groups, gender, and body mass index. The average length of stay was 0.67 (median 0, range, 0–5) days. Primary closure had the shortest length of stay (analysis of variance P = 0.04), and flap closure had no reoperations (analysis of variance P < 0.01). Pilonidal disease remains surgically challenging. Our data suggest that excision and primary closure is a better option in the pediatric population.

Negative pressure dressing assisted healing in pediatric burn patients

BACKGROUND/PURPOSE

Pediatric burn patients traditionally require multiple dressing changes and significant amounts of narcotics. Negative pressure dressings (NPDs) have emerged as an effective wound therapy that may represent an alternative primary dressing for these patients.

METHODS

This is a single institution, retrospective study of pediatric burn patients treated with NPDs over a defined 2 year period. Twenty-two patients were identified and their charts reviewed for age, sex, mode of injury, location of injury, degree of burn, length of stay, length of dressing required, number of dressing changes, and narcotic use between dressing changes.

RESULTS

The average patient was 3.5 years old (range of 8 months to 10 years old) with partial thickness burns involving 8.5% (range 3-18%) body surface area. The average treatment regimen was 3.5 dressing changes more than 6.6 days, with a mean hospital stay of 9.6 days. The average child received 9.4 total doses of delivered narcotics during their inpatient care.

DISCUSSION

The use of NPD in pediatric burn patients does require sedation and narcotics which limits its usefulness in the general pediatric burn population. Yet, they adhere well and stay in place even on active children, they capture and quantify fluid losses, they only require changes every 2-4 days and promote the adherence of split thickness skin grafts making them useful in various clinical situations.

CONCLUSIONS

NPDs are a viable option for both partial and full thickness burns in pediatric patients that do not require transfer to a burn unit. NPDs may be advantageous in highly active children, those with extensive fluid losses, those that require sedation for dressing changes and those that will require grafting.

Dressings and Products in Pediatric Wound Care

Significance: The increasing complexity of medical and surgical care provided to pediatric patients has resulted in a population at significant risk for complications such as pressure ulcers, nonhealing surgical wounds, and moisture-associated skin damage. Wound care practices for neonatal and pediatric patients, including the choice of specific dressings or other wound care products, are currently based on a combination of provider experience and preference and a small number of published clinical guidelines based on expert opinion; rigorous evidence-based clinical guidelines for wound management in these populations is lacking. Recent Advances: Advances in the understanding of the pathophysiology of wound healing have contributed to an ever-increasing number of specialized wound care products, most of which are predominantly marketed to adult patients and that have not been evaluated for safety and efficacy in the neonatal and pediatric populations. This review aims to discuss the available data on the use of both more traditional wound care products and newer wound care technologies in these populations, including medical-grade honey, nanocrystalline silver, and soft silicone-based adhesive technology. Critical Issues: Evidence-based wound care practices and demonstration of the safety, efficacy, and appropriate utilization of available wound care dressings and products in the neonatal and pediatric populations should be established to address specific concerns regarding wound management in these populations. Future Directions: The creation and implementation of evidence-based guidelines for the treatment of common wounds in the neonatal and pediatric populations is essential. In addition to an evaluation of currently marketed wound care dressings and products used in the adult population, newer wound care technologies should also be evaluated for use in neonates and children. In addition, further investigation of the specific pathophysiology of wound healing in neonates and children is indicated to promote the development of wound care dressings and products with specific applications in these populations.

Use of acellular dermal regeneration template combined with NPWT to treat complicated extremity wounds in children

OBJECTIVE

The treatment of open wounds with exposed bone, tendon, or nerve is a challenging reconstructive problem, especially in children. The purpose of this study is to evaluate the safety and effectiveness of using acellular dermal templates combined with negative pressure wound dressings in the treatment of complicated paediatric soft tissue extremity wounds.

METHOD

A retrospective review of eight patients treated with acellular dermal templates for closure of complicated extremity wounds was performed. After debridement, all patients were treated with a template and a negative pressure wound treatment (NPWT) system.

RESULTS

The average age was 8.8 years with 4 females and 4 males. Four wounds were at the foot/ankle, with tendon exposed in all 4, nerve in 2, and bone in 3. There were 3 lower leg wounds, all with exposed bone. One patient had arm/hand wounds with exposed tendon. The size of the wounds and dermal graft averaged 86cm² and 57cm². The average time to wound closure was 65 days. The majority of the treatment was received as an outpatient, including NPWT. For inpatient and outpatient care, the average number of sponge system changes was 2.6 compared to 4.6, and time between changes was 3.5 compared to 6.8 days. Each patient had only one procedure each for application of the dermal substitute and later one skin grafting procedure. Complications were minimal, and all patients healed their wounds without the need of flaps. One patient required wound revision.

CONCLUSION

Our study demonstrates that a dermal template combined with NPWT can safely and effectively be used to treat complicated wounds in children. Closure was obtained without flaps, the majority of the treatment time was spent in the outpatient setting, and the complication rate was low.

DECLARATION OF INTEREST

There were no external sources of funding for this study. The authors have no conflicts of interest to declare.

Negative pressure wound therapy (NPWT) for spinal wounds: a systematic review

BACKGROUND CONTEXT

The management of postoperative spinal wound complication remains a challenge, with surgical site infection (SSI) incidence rates ranging from 0.4% to 20% after spinal surgery. Negative pressure wound therapy (NPWT) has been highlighted as an intervention that may stimulate healing and prevent SSI. However, the wound healing mechanism by NPWT and its effectiveness in spinal wounds still remain unclear.

PURPOSE

To systematically search, critically appraise, and summarize randomized controlled trials (RCTs) and non-RCTs assessing the effectiveness of NPWT in patients with a spinal wound.

STUDY DESIGN

Systematic review.

METHODS

A systematic review based on search strategies recommended by the Cochrane Back and Wounds Review Groups was undertaken using Cochrane Library, MEDLINE, EMBASE, and CINAHL databases. Any publications between 1950 and 2011 were included. Funding to undertake the review was received from the University of Huddersfield Collaborative Venture Fund ($4,820) and KCI Medical ($4,820).

RESULTS

Ten retrospective studies and four case studies of patients with spinal wound complication were included in this systematic review. No RCTs were found. Only one study described more than 50 patients. Generally, a pressure of -125 mm Hg was used in adults. Duration of NPWT in situ ranged from 3 to 186 days. Wound healing was assessed every 2 to 3 days and generally completed between 7 days and 16 months. Negative pressure wound therapy is contraindicated in the presence of active cerebrospinal fluid leak, metastatic or neoplastic disease in the wound or in patients with an allergy to the NPWT dressing and in those with a bleeding diathesis.

CONCLUSIONS

Published reports are limited to small retrospective and case studies, with no reports of NPWT being used as a prophylactic treatment. Larger prospective RCTs of NPWT are needed to support the current evidence that it is effective in treating spinal wound complications. In addition, future studies should investigate its use as a prophylactic treatment to prevent infection and report data relating to safety and health economics.

Vacuum assisted closure in the management of wound healing disorders in the head and neck: a retrospective analysis of 23 cases

BACKGROUND

Since the middle of the 1990s vacuum-assisted closure (VAC) has been used in many areas of surgery to manage complex wounds and impaired wound healing. Until recently, little attention has been paid to this treatment modality in the field of head and neck surgery. The evaluation of its efficacy in wound healing disorders of the head and neck was the aim of this study.

MATERIAL AND METHODS

Patients with complex wounds and impaired healing treated with VAC therapy between 2008 and 2011 were included into the study. VAC dressings were changed every 3 days and improvements in wound healing were documented.

RESULTS

23 patients were treated with VAC therapy, in 18 cases (78%) closure of the defect could be reached without any further surgical procedure. 5 patients needed subsequent regional flap reconstruction to close the remaining defect. All of these patients had undergone salvage surgery in a previously irradiated neck before.

CONCLUSION

Vacuum assisted closure is an effective treatment in the management of wound healing disorders and complex wounds in the head and neck. It offers a useful, non-invasive modality to close even large defects in the area. Previous irradiation seems to have a significant negative influence on the outcome of the therapy, but more data are required to assess these effects.

Negative pressure wound therapy in infants and children: a single-institution experience

BACKGROUND

Information regarding the use of negative pressure wound therapy (NPWT) in the pediatric population is limited. Because of adverse outcomes in adult patients, the Food and Drug Administration issued a warning in 2011 about the use of NPWT in infants and children.

METHODS

We performed an institutional review board-approved, single-institution, retrospective review of pediatric patients who had undergone NPWT from 2007-2011. We collected the types of wounds for which NPWT was initiated, the NPWT outcomes, and the complications encountered.

RESULTS

The data from 290 consecutive patients were reviewed. Their average age was 9.3 y (range 12 d to 18 y), and their average weight was 46.5 kg (range 1.1-177). Of the wounds, 66% were classified as acute, 10% as chronic, and 24% as traumatic. The two most common indications were surgical wound dehiscence (n = 47) and skin grafting (n = 41). NPWT was used in 15 wounds containing surgical hardware, with 2 devices requiring eventual removal. NPWT was used for a median of 9 d per patient (two dressing changes). Complications occurred in 5 patients (1.7%). Documentation problems were noted in 44 patients. After NPWT, about one-third of the patients (n = 95 patients) were able to undergo delayed primary closure.

CONCLUSIONS

NPWT is an effective adjunct in wound healing and closure in the pediatric population, with no mortality ascribed to NPWT. Also, the complication rates were low.

Intestinal perforation after treatment of Burkitt's lymphoma: case report and review of the literature

Non-Hodgkin's Lymphoma (NHL) is the most common intestinal malignancy in children, and Burkitt's lymphoma is the most frequently encountered histologic subtype. In pediatric patients, intestinal involvement of the lymphoma is a common finding. As over half of these intestinal tumors are unresectable at the time of presentation, chemotherapy is the mainstay of treatment. However, as the tumor responds to chemotherapy, regression of the tumor in the bowel wall can result in intestinal perforation. We report a unique case of a pediatric patient with lymphoma-related intestinal perforation which was managed with a damage control laparotomy, discuss operative management strategies in these difficult cases, and provide a review of similar cases in the literature.

A simple vacuum dressing reduces the wound infection rate of single-incision pediatric endosurgical appendectomy

BACKGROUND AND OBJECTIVES

After introducing single-incision pediatric endosurgical (SIPES) appendectomy at our institution, we noticed an increased number of post-operative umbilical infections. This study evaluates the impact of a simple, low-cost wound vacuum dressing on the wound infection rate.

METHODS

Umbilical wounds after single-incision laparoscopic appendectomy were covered with standard dressing (approximating strips), or the new umbilical vacuum dressing. A wound infection was defined as an infected umbilicus requiring antibiotics, or incision and drainage. The wound infection rate was compared between both groups. Statistical analysis was performed using Fischer's exact test. Continuous variables were compared using the Student t test.

RESULTS

Included in this study were 183 children, 97 of whom were treated with the vacuum dressing. The study populations were no different in terms of age, weight, operative time, blood loss, length of stay, or proportion of acute versus perforated appendicitis. A total of 7 (3.8%) wound infections occurred, 1 in the vacuum dressing group (1%), versus 6 in the conventional dressing group (7%, P=0.038).

CONCLUSIONS

This simple, low-cost umbilical vacuum dressing decreased the wound infection rate after SIPES appendectomy, possibly by absorbing secretions from the base of the wound. It may be equally effective for other indications.

Negative pressure wound therapy: an adjuvant to surgical reconstruction of large or difficult skin and soft tissue defects

Wide and deep wound defects are a challenge to surgeons, particularly when aggressive or more radical operations are unavailable. This article introduces refined techniques, indications and the clinical experience of the application of negative pressure wound therapy (NPWT) as an easy ancillary wound dressing method for the reconstruction of large or difficult skin and soft tissue defects. The authors used NPWT on 88 patients as an adjuvant therapy before reconstructive surgery since 2006. NPWT was applied for two different treatment strategies: as an adjuvant therapy to facilitate the formation of a healthy wound bed and to reduce the size and depth of a defect. NPWT was used as an alternative dressing method for skin grafting for infants or mobile skin surfaces such as the neck, penis, dorsum of the hand, knee joint, abdomen, etc. There were no typical wound complications. NPWT application, if used appropriately, produces successful surgical reconstructions for large, deep skin and soft tissue defects without extensive or radical flap surgery or loss of skin graft.