Effectiveness of a Regenerative Epithelial Suspension (RES), on the pigmentation of split-thickness skin graft donor sites in children: the dRESsing pilot randomised controlled trial protocol.

BACKGROUND: Paediatric donor site wounds are often complicated by dyspigmentation following a split-thickness skin graft. These easily identifiable scars can potentially never return to normal pigmentation. A Regenerative Epidermal Suspension (RES) has been shown to improve pigmentation in patients with vitiligo, and in adult patients following a burn injury. Very little is known regarding the efficacy of RES for the management of donor site scars in children. METHODS AND ANALYSIS: A pilot randomised controlled trial of 40 children allocated to two groups (RES or no RES) standard dressing applied to donor site wounds will be conducted. All children aged 16 years or younger requiring a split thickness skin graft will be screened for eligibility. The primary outcome is donor site scar pigmentation 12 months after skin grafting. Secondary outcomes include re-epithelialisation time, pain, itch, dressing application ease, treatment satisfaction, scar thickness and health-related quality of life. Commencing 7 days after the skin graft, the dressing will be changed every 3-5 days until the donor site is ≥ 95% re-epithelialised. Data will be collected at each dressing change and 3, 6 and 12 months post skin graft. ETHICS AND DISSEMINATION: Ethics approval was confirmed on 11 February 2019 by the study site Human Research Ethics Committee (HREC) (HREC/18/QCHQ/45807). Study findings will be published in peer-reviewed journals and presented at national and international conferences. This study was prospectively registered on the Australian New Zealand Clinical Trials Registry (available at https://anzctr.org.au/ACTRN12620000227998.aspx). TRIAL REGISTRATION NUMBER: Australian New Zealand Clinical Trials Registry [Available at https://anzctr.org.au/ACTRN12620000227998.aspx].

Systematic literature review of topical local anaesthesia or analgesia to donor site wounds.

Background: Topical local analgesic and anaesthetic agents have been used both pre- and immediately post-harvest on split-thickness skin graft (STSG) donor site wounds (DSW). There is no systematic review of their effectiveness in providing post-harvest analgesia, or of the possible toxic effects of systemic absorption. This study is designed to address the question of which agent, if any, is favoured over the others and whether there are any safety data regarding their use. Methods: Systematic literature review of randomised controlled trials of topical agents applied to STSG DSWs, with a view to providing analgesia. Studies identified via search of Cochrane and EBSCO databases. No restrictions on language or publication year. Primary outcomes: pain at the time of (awake) STSG, and post-harvest pain (up to first dressing change). Secondary outcome was serum medication levels relative to published data on toxic doses. Cochrane risk of bias assessment tool utilised in assessment of included studies. At least 2 reviewers screened and reviewed included studies. A narrative review is presented. Results: There were 11 studies meeting inclusion criteria. Overall methodological quality and patient numbers were low. Topical eutectic mixture of lidocaine and prilocaine pre-harvest affords good local anaesthesia in awake STSG harvesting. Topical bupivacaine (5 studies) or lidocaine (1 study) gave significantly better post-harvest anaesthesia/analgesia than placebo. Topical morphine performs no better than placebo. Topical local anaesthetic agents at reported doses were all well below toxic serum levels. Conclusions: Topical local anaesthetics (lidocaine or bupivacaine) provide good analgesia, both during and after STSG harvest, at well below toxic serum levels, but there are no good data determining the best local anaesthetic agent to use. There is no evidence morphine performs better than placebo.

Metastatic tumors to the pancreas: Balancing clinical impression with cytology findings.

BACKGROUNDS/AIMS: Metastatic lesions of the pancreas (PMET) account for 1%-5% of all malignant solid pancreatic lesions (SPL). In this study we evaluated the utility of endoscopic ultrasonography with fine needle aspiration (EUS-FNA) in diagnosing PMET. METHODS: Patients who underwent EUS-FNA at a community referral center between 2011-2017 for SPL were identified. Clinical, radiologic, and EUS-FNA features of those with PMET were compared to those with primary solid tumors of the pancreas: pancreatic adenocarcinoma (PDAC) and neuroendocrine tumors (PNET). RESULTS: A total of 191 patients were diagnosed with solid pancreatic malignancy using EUS-FNA: 156 PDAC, 27 PNET, and eight (4.2%) had PMET. Patients with PMET were less likely to have abdominal pain (25.0% vs. 76.3% vs. 48.2%; p < 0.01) or obstructive jaundice (37.5% vs. 58.3% vs. 0%; p < 0.01) compared to PDAC and PNET. Those with PMET were more likely to have mass lesions with/without biliary or pancreatic ductal dilatations (100% vs. 86.5% vs. 85.2%; p < 0.01) and lower CA19-9 (82.5 ± 43.21 U/mL vs. 4,639.30 ± 11,489.68 U/mL vs. 10.50 ± 10.89 U/mL; p < 0.01) compared to PDAC and PNET. Endosonographic features were similar among all groups. Seven (87.5%) patients with PMET had a personal history of malignancy prior to PMET diagnosis. The primary malignancy was renal cell carcinoma in five PMET. CONCLUSIONS: PMET are exceedingly rare, comprising less than 5% of SLP. Patients with PMET are less likely to present with symptoms and mostly identified by surveillance imaging for the primary malignancy.

Surgeon's practices and beliefs in Australia and New Zealand regarding the donor site wound for paediatric skin grafts.

AIM: Children's burns care in Australasia is performed by paediatric surgeons and by plastic surgeons. The aim was to determine practices regarding the donor site wound (DSW), and to explore any differences by training scheme or nature of unit (paediatric vs. mixed). METHODS: Online survey of Australasian burns surgeons. RESULTS: Forty surgeons responded. 23/40 paediatric surgeons, 23/40 worked in a stand-alone children's burns unit. All used powered dermatomes. Alginates were the most common DSW dressing. Idealised dressings favour patient factors over cost. Plastic, and mixed-practice, surgeons use a broader range of dermatome settings in children >1 year. Mixed practice surgeons use thicker settings. All surgeons see pain as a common DSW problem. Paediatric surgeons recognise itch as a problem. CONCLUSIONS: While there are differences related to training scheme and the mix of patients being treated, there is a broader commonality of practice.

Finding a needle in a haystack: Endoscopic ultrasound-guided fine-needle aspiration for solid pancreatic masses in the setting of chronic pancreatitis.

BACKGROUND: The mainstay for the definitive diagnosis of pancreatic lesions is endoscopic ultrasound-guided fine-needle aspiration (EUS-FNA). However, there is evidence that EUS-FNA has low sensitivity in the setting of chronic pancreatitis (CP). This single-center retrospective study aimed to compare and analyze the diagnostic yield of EUS-FNA for solid pancreatic lesions in the presence and absence of CP, and to further investigate strategies for overcoming the low diagnostic yield in the setting of CP. METHODS: This study identified patients who underwent EUS-FNA at Sanford USD Medical Center (SD, USA) for a solid pancreatic lesion between July 15, 2011, and November 30, 2017. Data on demographics, clinical features, cross-sectional imaging findings, EUS findings, cytology/pathology, and clinical follow up were collected. RESULTS: The final diagnosis was adenocarcinoma in 156 patients (67%), neuroendocrine tumor in 27 (12%), lymphoma in 6 (3%), metastatic malignancy in 8 (4%), and benign etiologies in 35 (15%). CP was identified in 44/234 (19%) patients. The overall diagnostic sensitivity, specificity, positive predictive value, negative predictive value, and accuracy for EUS-FNA were 92.9%, 97.1%, 99.5%, 70.8%, and 93.5%, respectively. The sensitivity (80% vs. 95%, P=0.020) and accuracy (86% vs. 95%, P=0.043) were significantly lower in patients with CP compared to those without CP. CONCLUSION: CP can significantly affect the EUS-FNA diagnostic yield of solid pancreatic neoplasms. A high index of clinical suspicion is required in these cases to make a definitive diagnosis.

Penile nerve block predicts higher revision surgery rate following distal hypospadias repair when compared with caudal epidural block: A consecutive cohort study.

INTRODUCTION: Recent literature has suggested caudal epidural blocks (CEB) may increase revision surgery rates following hypospadias repair. We sought to investigate this using a large, multi-surgeon series. OBJECTIVE: The primary objective of this study was to identify the impact of CEB or penile nerve blocks (PNB) on revision surgery rates following distal hypospadias repair at our centre. STUDY DESIGN: A prospectively maintained database of consecutive patients undergoing primary hypospadias repairs under the supervision of 8 different paediatric surgeons at our centre between January 2015 and December 2018 was queried for the following potential risk factors: Age at surgery, American Society of Anaesthesiologist's (ASA) grade, hypospadias type, type of surgery, CEB or PNB, and training level of primary surgeon. Revision surgery was defined as reoperation for fistulas, dehiscence, strictures or meatal stenosis. Univariate and Multivariate analysis was performed using logistic regression. RESULTS: 188 patients underwent primary distal hypospadias repair over the study time period. Patients were aged between 7 months and 15 years of age. Median age at surgery was 14 months. Revision surgery was performed for 31 patients (16.5%). Indications were urethrocutaneous fistula (n = 17, 9.0%), meatal stenosis or stricture (n = 9, 4.8%) and glans dehiscence (n = 5, 2.7%). 114 (60.6%) received a penile block and 74 (39.4%) a caudal block. On univariate analysis, PNB (HR 2.55 95% CI 1.04-6.27, p = 0.04) was statistically significant for revision surgery. This association remained significant on multivariate analysis (HR 2.74 95% CI 1.09-6.92, p = 0.03). All other prognostic factors examined were not statistically significant for revision surgery. DISCUSSION: Our findings suggest PNB are associated with higher revision surgery rates following distal hypospadias repair. This contrasts with the findings of other authors. CONCLUSION: Our study is the first to demonstrate an association between PNB and higher revision surgery rates following distal hypospadias repair.

Creating Consumer-Generated Health Data: Interviews and a Pilot Trial Exploring How and Why Patients Engage.

BACKGROUND: Consumer-generated health data (CGHD) are any clinically relevant data collected by patients or their carers (consumers) that may improve health care outcomes. Like patient experience measures, these data reflect the consumer perspective and is part of a patient-centric agenda. The use of CGHD is believed to enhance diagnosis, patient engagement, and thus foster an improved therapeutic partnership with health care providers. OBJECTIVE: The aim of this study was to further identify how these data were used by consumers and how it influences engagement via a validated framework. In addition, carer data has not been explored for the purpose of engagement. METHODS: Study 1 used interviews with CGHD-experienced patients, carers, and doctors to understand attitudes about data collection and use, developing an ontological framework. Study 2 was a pilot trial with carers (parents) of children undergoing laparoscopic appendectomy. For 10 days carers generated and emailed surgical site photographs to a tertiary children's hospital. Subsequently, carers were interviewed about the engagement framework. In total, 60 interviews were analyzed using theme and content analysis. RESULTS: This study validates a framework anchored in engagement literature, which categorizes CGHD engagement outcomes into 4 domains: physiological, cognitive, emotional, and behavioral. CGHD use is complex, interconnected, and can be organized into 10 themes within these 4 domains. CONCLUSIONS: CGHD can instigate an ecosystem of engagement and provide clinicians with an enhanced therapeutic relationship through an extended view into the patient's world. In addition to clinical diagnosis and efficient use of health care resources, data offer another tool to manage consumers service experience, especially the emotions associated with the health care journey. Collection and use of data increases consumers sense of reassurance, improves communication with providers, and promotes greater personal responsibility, indicating an empowering consumer process. Finally, it can also improve confidence and satisfaction in the service.

The Impact of Repeating Endosonography with Confocal Endomicroscopy for the Diagnosis of Cystic Neuroendocrine Tumor.

Cystic pancreatic neuroendocrine tumors represent around 13% of all neuroendocrine tumors (Hurtado-Pardo 2017). There has been an increase in the incidence of cases due to improvement in imaging modalities. This is a case of a 68-year-old male with the incidental finding of a pancreatic cyst on CT. Initial Endoscopic Ultrasound with Fine Needle Aspiration (EUS-FNA) showed sonographic and cytology features suggestive of a pancreatic pseudocyst. However the cyst persisted with no change in size after aspiration leading to a follow-up EUS- FNA, which was combined with needle based confocal laser endomicroscopy (nCLE). The nCLE features were consistent with a cystic pancreatic neuroendocrine tumor, which was later confirmed on histology after surgical resection.

Intentional self-inflicted and peer-inflicted aerosol skin injuries called 'frosties': Cohort series and systematic literature review.

BACKGROUND AND OBJECTIVES: 'Frosties' are deliberate cold skin burns caused by an aerosol device. The aim of this article was to examine our own cohort, and those previously published, to identify the key features of patients presenting with frosties and inform appropriate early clinical interventions. METHOD: We compared cases in our dataset that occurred between 1 January 2013 and 30 June 2017 with those reported in the literature, focusing on seven domains: sex, age at injury, days to presentation, first aid, depth of injury and outcome. RESULTS: The median patient age was 13 years; 70.5% were female. Adequate first aid was not reported in any patient. Where recorded, the median time to presentation to a health service was six days. Where severity of injury was recorded, 13 of 37 cases (35.1%) were full thickness, and 10 patients received a split thickness skin graft. Two subgroups were identified: cluster injuries and psychological distress. DISCUSSION: Cluster injuries occur as the result of a mutual 'test of courage'. Solo injuries may point to underlying psychological distress. Frosties frequently result in significant burn injuries and often require skin grafting. The severity of frosties is underappreciated and, as a consequence, treatment, through first aid or presentation to a health service, is delayed or absent. General practitioners should be familiar with the appearance of frosties in order to identify them in unrelated consultations.

The treatment of pyloric stenosis: Evolution in practice.

Over the last hundred years, idiopathic hypertrophic pyloric stenosis has undergone an evolution in treatment, with subsequent improvements in outcome. Initially, it was treated by physicians with antispasmodics and various alternative feeding and resuscitation modalities. The evolution of surgical approaches led to a revolution in outcome, from almost certain death to complete cure. The progression of surgical and medical treatments is reviewed in this article until, ultimately, Ramstedt's pyloromyotomy is reached. This distilled operation has remained the gold-standard procedure for over a century.

Telehealth in paediatric surgery: Accuracy of clinical decisions made by videoconference.

AIM: Telehealth is a useful method of providing specialist consultation to a geographically diverse population. Canadian studies of telehealth for paediatric surgery demonstrate good accuracy, but have low numbers of cryptorchid patients in their cohorts. Our aim was to confirm Canadian studies for our cohort and to assess accuracy regarding cryptorchidism. METHODS: We conducted a cohort study of patients seen via paediatric surgical telehealth over a 12-month period, to determine accuracy of telediagnosis with respect to face-to-face diagnosis and plan. RESULTS: A total of 183 children had 224 videoconferences, resulting in 74 surgical bookings. There was high diagnostic concordance, except for undescended testes. One discharged patient, and two patients booked for review, have subsequently required an orchidopexy (false negatives). Of 15 patients booked for surgery, three did not require an operation (false positives). Other patients had their procedures upgraded (from open to laparoscopic) or downgraded (from laparoscopic to open) due to inaccuracies in far-end assessment. CONCLUSION: Telehealth for paediatric surgery is accurate for most conditions seen, but for cryptorchidism there are significant concerns.

Epidemiology of isolated foot burns in children presenting to a Queensland paediatric burns centre- a two-year study in warmer climate.

BACKGROUND: European studies of paediatric foot burns report scalds as the leading cause. Mechanisms of injury are different in warmer climates. We sought to characterize the mechanisms and outcomes of isolated foot burns in our population. METHODS: Retrospective review of a prospectively collected database of all children aged 0-15 years presenting to a Queensland paediatric burns centre over a 26-month period. Non-parametric analyses such as the Mann-Whitney U and Pearson Chi-square were used. RESULTS: There were 218 children with foot burns treated over a period of 2 years and 2 months of which 214 had complete records. There were significantly more boys than girls (n = 134, 62.6% cf. n = 80, 37.4%, p < 0.0001). The leading mechanism of injury was a contact burn accounting for 63.1% (n = 135) followed by scalds (23.8%, n = 51). Friction, flame and chemical burns were a minority but were significantly deeper (p = 0.03) and significantly more likely to require grafting (p = 0.04) and scar management (p < 0.0001) compared to contact and scald burns. CONCLUSIONS: In our population, contact burns are the most common mechanism of injury causing burns to the feet. The leading aetiology is campfire burns, which account for one-third of all burns to the feet. Prevention campaigns targeted at this population could significantly reduce the burden of morbidity from these burns. Friction, flame and chemical burns constitute a minority of patients but are deeper and more likely to require skin grafting and scar management.

Starchy liquid burns do not have worse outcomes in children relative to hot beverage scalds.

AIM: To characterise children presenting with hot beverage scalds versus scalds caused by starchy water. METHODS: Retrospective survey of prospectively collected database of all children presenting over a two-year period. RESULTS: There were 138 starch scalds and 262 hot beverage injuries. Children with hot beverage injuries were significantly younger (18.2 months; IQR 14.1, 27.8) than those suffering starch scald injuries (51.4 months; 18.7, 102.3; p<0.001). Perineal burns were more common in the starch group than the hot beverage scald group (10.9% vs. 2.4%, p<0.001). Chest/breast and abdominal burns were more common in the hot beverage group than the starch group (60.7% vs. 36.9%, p<0.001). Children under three years of age in both groups are significantly less likely to receive adequate first aid at the scene (p<0.001). There are no differences in the need for skin grafting or scar management when comparing hot beverage scalds and scalds caused by starchy liquids. CONCLUSIONS: Scald injuries caused by starchy liquids do not appear to cause a more severe injury than hot beverage scalds. There is a different pattern of injury from starchy liquids in older children. Children under three years old are less likely to receive appropriate first aid at the scene.

Savary dilation is a safe and effective long-term means of treatment of symptomatic cricopharyngeal bar: a single-center experience.

GOALS: Dilation of a cricopharyngeal (CP) bar can be a safe and effective means of nonsurgical treatment as elderly patient population has high morbidity and is at a higher risk of surgical complications. BACKGROUND: CP bar is a relatively uncommon radiologic finding, which is an infrequent cause of oropharyngeal dysphagia in the elderly population. METHODS: Patients were included in study from January 2007 to January 2012, if their dysphagia was solely attributed to CP bar on predilation radiologic imaging by either modified barium swallow or barium esophagogram. A functional outcome swallowing score (FOSS) was calculated at 1, 4, and 6 months from initial and last dilation performed. RESULTS: A total of 31 patients with a mean age of 71.65 (54 to 88) years and mean body mass index 27.81 (15 to 41) were included in the study. Over the time period of 5 years, a total of 53 dilations were performed. The median predilation FOSS was 3. The median postdilation FOSS was 1 at the end of 6 months from last dilation performed. There were no immediate or remote complications. CONCLUSIONS: On follow-up from first dilation, 65% patients had statistically significant improvement in FOSS lasting for at least 6 months. Savary dilation seems to be a safe and effective treatment for symptomatic CP bar patients.

Helicobacter pylori breath testing in an open access system has a high rate of potentially false negative results due to protocol violations.

BACKGROUND: Among available tests to detect Helicobacter pylori (H. pylori), urea breath test (UBT) is the most accurate when performed correctly in research protocols with unknown validity in clinic settings. MATERIAL AND METHODS: A total of 595 subjects at a gastroenterology clinic were tested 620 times with UBT. Detailed information about three known factors (recent proton-pump inhibitors (PPI), antibiotics, or bismuth, H. pylori eradication treatment finished <4 weeks ago, and gastric resection) to make UBT unreliable were prospectively recorded before each test. RESULTS: Twenty-three percent (120 of 526) of all negative tests fell in one or more of the three categories, which had the potential to make UBT unreliable. Of those carried out on persons without being treated before, the potential false negative rate was 15%. Among those with previous eradication treatment, the rate was around 45%. CONCLUSIONS: If a negative UBT could be false negative in up to 23% of cases, then it has a serious lack of negative predictive value. A negative UBT should be considered false negative until potential protocol violations are excluded.