"Persistent Post-Operative Pain in Children - An Argument for a Transitional Pain Service in Pediatrics".

BACKGROUND: Persistent post-operative pain continues to occur in pediatric patients. Despite the growing amount of literature on causes, there is little discussion on treatment and prevention with a majority of studies focusing on specific surgeries. AIM: The aim of this retrospective chart study is to identify risk factors and clinical features of persistent post-operative pain after any surgery in a pediatric quaternary complex pain service, describe the pharmacologic and non-pharmacologic management in children, and explore options to improve outcomes, in particular, the introduction of a transitional pain service. METHODS: A retrospective chart review recorded demographics, gender, age, pain location and surgery type, treatment, and outcomes of 31 children identified through relevant registers over a 2-year period. RESULTS: A total of 31 children were positively identified as having persistent post-operative pain and were seen in the complex pain clinic. Consistent with the literature, most cases represented neuropathic pain and persistent post-operative pain was most commonly seen after orthopedic surgery. All but four children had resolution of their pain after implementing the pain management plan. Management was characterized by early intervention, emphasis on non-pharmacologic strategies, and conservative use of opioids. CONCLUSIONS: Identifying risk factors is useful, however putting strategies into place for prevention is necessary. Early intervention and the implementation of strategies before and immediately after are best provided by a transitional pain service.

Profile of children with developmental disabilities attending a complex pain clinic of a children's hospital in Australia.

AIM: To document the profile and management of children with developmental disabilities (DD) attending an outpatient complex pain clinic at a Children's Hospital in Sydney, Australia. METHODS: Children with DD from 2011 to 2014 were identified from a clinic database, and pain relevant data was collected. RESULTS: A total of 107 (19.6%) of 544 children were identified with DD, and accounted for one-third of clinic attendances. The median age was 14 years (interquartile range: 11-16) and females were slightly over-represented (62, 57.9%). About one-third of children had cerebral palsy (CP) from a variety of prenatal, natal and post-neonatal causes. The lower limb was the most common site for pain in children with CP, while back pain was more frequent in children with other disabilities. Comorbid emotional disorders were significantly associated with the non-CP disabilities. Children who required more than four clinic attendances were more likely to have comorbid anxiety/depression and to be reviewed by multiple specialists. CONCLUSIONS: Long-term persistent pain in children with DD forms a significant cohort of children requiring tertiary level paediatric pain services. Multisystem comorbidities and emotional disorders predict greater service utilisation. Further research into the effectiveness of multidisciplinary pain teams and interventions in this cohort of children is required.

Staged intraperitoneal brachytherapy and hyperthermic intraperitoneal chemotherapy in an adolescent: novel anesthetic challenges for pediatric anesthetists.

Newer techniques that have found a place in cancer management in adults are offered far less commonly in pediatric patients. We present a case of a patient with recurrent Wilms' tumor managed with a novel combination of cytoreductive surgery, intraperitoneal brachytherapy, and subsequent hyperthermic intraperitoneal chemotherapy. Each stage presents challenges that the pediatric anesthetist is unlikely to have faced before. Such cases require flexibility and thorough planning to manage the combination of major surgery, remote anesthesia with brachytherapy and hyperthermic chemotherapy with its potential for metabolic derangement, significant fluid shifts, analgesic care, and potential exposure of staff to cytotoxic agents. Comprehensive care can be offered in pediatric centers.

Exploratory study of sleeping patterns in children admitted to hospital.

AIMS: Sleep is considered an important time of healing and restoration during illness. The primary aim of this study was to determine the prevalence of self-reported sleep disturbance in children admitted to a tertiary children's hospital with a variety of medical diagnoses. METHODS: Parents of children admitted to the hospital, aged between 1 and 18 years, were asked to complete a sleep diary during one night of their child's hospital stay. Children older than 12 years were asked to complete a diary independently. Descriptive statistics were used to summarise the data. RESULTS: Overall, 107 children were surveyed for one hospital inpatient night. The overall prevalence of poor sleep was 52.3%. The wide age range and variety of diagnosis limited further detailed analysis of specific causes of this problem. Poor sleep prior to admission was the strongest predictor of poor sleep in hospital suggesting that these children already had an underlying sleep problem. Unprompted awakenings were predominantly due to toileting (17.8%) or were spontaneous (17.8%). Factors specific to the hospital environment that woke children were nursing cares (25.2%), alarms (12.1%) and pain (12.1%). CONCLUSIONS: Children admitted to hospital have a higher prevalence of poor sleep compared with healthy children in the community. Children were woken frequently by both external noise and attention provided by hospital staff. Education of hospital staff about the importance of sleep for children and factors that affect children's sleep may reduce the negative impact of hospitalisation on children's sleep.

Effect of general anesthesia on pulmonary function and clinical status on children with cystic fibrosis.

INTRODUCTION: Children with cystic fibrosis (CF) receive general anesthesia (GA) for a variety of different procedures. Historical studies assessing risk of GA report a high risk of morbidity. There is a paucity of data evaluating the risk of currently available anesthetic agents. The aim of this study was to assess the effect of GA on clinical status and lung function on children with CF. METHODS: Children with CF aged 8-18 years admitted for IV antibiotic treatment for a pulmonary exacerbation were invited to participate. Spirometry, forced oscillation technique (FOT), and CF clinical score (CFCS) were measured pre-GA, at 24 and 48 h post-GA. The nature and duration of the GA were recorded. RESULTS: Twenty two patients were recruited of which 19 patients (mean age 11.4 years, range 8-18 years, 12 male) required GA. Typically, either propofol or sevoflurane was used as induction agent and maintenance of anesthesia was with sevoflurane. A laryngeal mask was used in most cases. FEV1 mean (±SD) pre-GA was 75.1% (±23.46) which decreased at 24 h to 74.8 (±23.0) and at 48 h to 74.3 (±20.5). FOT resistance and reactance decreased at 24 and 48 h from baseline. Changes in spirometry and CFCS were not statistically significant. Two adverse events were observed in this cohort. CONCLUSION: The results suggest that children with mild to moderate CF lung disease do not experience significant deterioration in central or peripheral airway function following GA. The low rate of complications suggests an improved level of safety for children with CF with modern anesthesia compared with historical published data.

Perioperative pathways for children with neurodevelopmental conditions and behaviours that challenge: An evaluation of parent experiences for service improvement.

AIM: To elicit experiences of parents of children with neurodevelopmental conditions using a new perioperative pathway. METHOD: Parents of children accessing an adapted perioperative clinical pathway in a tertiary children's hospital between July 2019 and December 2020 were invited to participate. A mixed method study was conducted comprising a short survey questionnaire followed by telephonic interviews. RESULTS: From 67 postal surveys sent out, 20 were completed. Six out of 20 parents participated in phone interviews and one parent submitted written prose. Parents were positive about their experiences. Six themes emerged: Negative past experiences (highlighting the need for adapted perioperative pathways); Reasonable adjustments (improving child and parent's hospital journey); Facilitating communication, convenience and collaboration; Parent's satisfaction and relief; Barriers to overcome and Areas in need of improvement were discussed. CONCLUSION: Parents of children with neurodevelopmental conditions report great satisfaction and relief from their experiences of a more efficient, streamlined and stress-free way for their child to have tests or procedures done. Parents report improved communication, convenience and collaboration with staff resulted in timely, safe and high-quality care.

Cat rabies in Brazil: a growing One Health concern.

This review of human and cat rabies from 1986 to 2022 has shown mostly AgV3 variant in human cases with 29/45 (64.4%) reports including 23 from bats, four from cats, and two from unknown species, followed by 8/45 (17.8%) of AgV2 variant (all from dogs), 4/45 from marmoset variant (all from Callithrix jacchus), 2/45 samples compatible with wild canid variant (both from Cerdocyon thous), and one/45 of AgV1 variant from a domestic dog. Only one sample of human rabies was not typified, related to bat aggression. In addition, surveillance conducted in the state of São Paulo confirmed the presence of rabies in 7/23,839 cats (0.031%) and 3/106,637 dogs (0.003%) between 2003 and 2013, with a 10:1 overall cat-to-dog positivity ratio. This 10-fold higher infection rate for cat rabies may be explained by cats' hunting habits and predation. In addition, after 28 years of rabies-free status, a new cat rabies case was reported in the city of São Paulo in 2011. The rabid cat lived, along with other pets, in a household located near the largest downtown city park, whose owners presented animal hoarding behavior. Thus, animal hoarders and rescuers, public health agents, animal health professionals, and the general population with contact need to be aware of the risk of bat-borne rabies followed by spillover from cats to humans. In conclusion, cat rabies cases are becoming increasingly important in Brazil. This poses a One Health concern, given the overlapping of human, bat and cat populations within the same predisposed environment.

Continuous local anaesthetic wound infusion of bupivacaine for postoperative analgesia in neonates: a randomised control trial (CANWIN Study).

OBJECTIVE: To determine the effect of continuous wound infusion of local anaesthetic drug (bupivacaine) on total amount of systemic opioid use in the first 72 hours in newborn infants undergoing laparotomy. DESIGN: A two-arm parallel, open-label randomised controlled trial. SETTING: A quaternary newborn intensive care unit. PATIENTS: Infants>37 weeks of gestation undergoing laparotomy for congenital or acquired abdominal conditions. INTERVENTIONS: Continuous wound infusion of local anaesthetic (bupivacaine) for the first 72 hours along with systemic opioid analgesia (catheter group) or only systemic opioid analgesia (opioid group). MAIN OUTCOME: Total amount of systemic opioid used within the first 72 hours post laparotomy. RESULTS: The study was underpowered as only 30 of the expected sample size of 70 infants were enrolled. 16 were randomised to catheter group and 14 to opioid group. The two groups were similar at baseline. There was no significant difference between the groups for the primary outcome of median total systemic opioid use in the first 72 hours post laparotomy (catheter 431.5 µg/kg vs opioid 771 µg/kg, difference -339.5 µg/kg, 90% CIhigh 109, p value 0.28). There was no significant difference between the groups for any of the secondary outcomes including pain scores, duration of mechanical ventilation, time to reach full feeds and duration of hospital stay. There were no adverse events noted. CONCLUSION: Continuous wound infusion of local anaesthetic along with systemic opioid analgesia is feasible. The lack of a difference in total systemic opioid use in the first 72 hours cannot be reliably interpreted as the study was underpowered. TRIAL REGISTRATION NUMBER: ACTRN12610000633088.

Proteome dataset of Hemileia vastatrix by LC-MS/MS label-free identification.

Here we describe the proteome of the fungus Hemileia vastatrix by label free mass spectrometry (LC-MS/MS). H. vastatrix is the causal agent of coffee rust disease, causing great economic losses in this crop. The objective of our work was to identify H. vastatrix proteins potentially involved in host colonization and infection, by exploring the shotgun proteomics approach. A total of 742 proteins were identified and are associated with several crucial molecular functions, biological processes, and cellular components. The proteins identified contribute to a better understanding of the metabolism of the fungus and may help identify target proteins for the development of specific drugs in order to control coffee rust disease. All data can be accessed at the Centre for Computational Mass Spectrometry - MassIVE MSV000087665 -https://massive.ucsd.edu/ProteoSAFe/dataset.jsp?task=cc71ad75f767451abe72dd1ce0019387.

Opioids for the management of severe chronic nonmalignant pain in children: a retrospective 1-year practice survey in a children's hospital.

OBJECTIVE: This study reviewed opioid prescription for chronic severe nonmalignant pain in a multidisciplinary pediatric pain clinic. We looked at benefits and side effects of therapy, and compared our process of opioid prescription with the practice guidelines defined in adult literature. DESIGN: Descriptive retrospective practice survey. SETTING: Multidisciplinary pain clinic in a tertiary pediatric hospital. PATIENTS: During a 12-month period, 104 patients were seen in the clinic, of which 49 received an opioid as part of their pain management; 11 received an opioid chronically, defined as more than 3 months in this study, and 5 of these were still on opioid at the end of the study period although data on one patient are lacking as she had been transferred to an adult clinic. METHODS: Information about patients was obtained from chart review. OUTCOME MEASURES: Benefits and side effects of treatment, as well as the process of prescribing opioids and follow-up. RESULTS: In the four patients studied, there seem to be better pain control and improved function in these patients while on opioid therapy, despite minor side effects. We identified some areas of improvement in our practice and made recommendations for the use of opioids in pediatric chronic severe nonmalignant pain. CONCLUSIONS: The evolution of our four patients seems to be in favor of treatment with an opioid for severe chronic nonmalignant pain in certain pediatric patients, in the context of prescribing in a multidisciplinary pain clinic with a multisystem approach to pain management although more data are needed to know if such therapy is safe and beneficial on a longer-term basis.

Cortisol response to general anaesthesia for medical imaging in children.

OBJECTIVE: The cortisol response to surgical stress has been frequently studied, and recommendations developed for steroid replacement in adrenally insufficient patients. There are currently no guidelines, however, for adrenal hormone replacement during anaesthesia alone. The objective of this study was to characterize the normal cortisol response to general anaesthesia in the absence of a surgical procedure in children. DESIGN: Prospective observational study. PATIENTS: Thirty-seven children (aged 0.5-7 years) without known endocrine disease or cranial neoplasms undergoing outpatient magnetic resonance imaging, under general anaesthesia for investigation of nonacute problems in a tertiary referral paediatric hospital. MEASUREMENTS: Serum cortisol and salivary cortisol were measured before and after anaesthesia and during recovery. RESULTS: The mean cortisol level was 303 (± 117) nmol/l at induction, 396 (± 241) nmol/l at emergence from anaesthesia and 584 (± 218) nmol/l during recovery. A stress response (increase in serum cortisol >550 nmol/l) occurred in 23% of children at emergence and in 52% of children at recovery. Eight children (31%) actually demonstrated a decrease in cortisol levels during anaesthesia, without an increase in complications. Mean salivary cortisol levels were 6.5 ± 4.8 nmol/l before induction, 23.5 ± 13.8 nmol/l at emergence from anaesthesia and 26.9 ± 21.6 nmol/l during recovery. A stress response (an increase in salivary cortisol greater than seven-fold) occurred in 26% of children during the study. CONCLUSIONS: While some children demonstrated a rise in their cortisol levels in response to anaesthesia without surgery, the response was variable and often more pronounced during recovery. There was consistently no classic stress response.

Anesthesia for children with hyperleukocytosis a retrospective review.

BACKGROUND: Hyperleukocytosis (a white cell count in peripheral blood >100 x 10(9) l(-1)) is a well-recognized medical emergency. Rates of morbidity associated with anesthesia in hyperleukocytotic patients have not been previously described. This retrospective study describes the perioperative morbidity and mortality of children who present acutely with hyperleukocytosis. METHODS: All patients under 17 years of age with leukemia complicated by hyperleukocytosis and who received general anesthesia as part of their acute care at the Children's Hospital in Westmead from July 1999 to June 2008 were included. Data describing perioperative adverse events within 48 h of anesthesia were collected using a systematic chart review. RESULTS: Over the 8- year period, 60 children were admitted with hyperleukocytosis related to a new diagnosis of leukemia. Fifty-two children had general anesthesia within 48 h of their admission. Eleven children required two separate general anesthetics within this same time frame. Two deaths were recorded within 48 h of anesthesia; one child died from neurological complications of her disease, and the second died from multi-organ failure. Three children had serious respiratory adverse events requiring postanesthesia intensive care. Thirteen children had notable but less serious adverse events. These were typically respiratory in nature and required supplemental oxygen for more than 2 h after anesthesia. CONCLUSION: Children with leukemia-related hyperleukocytosis often require general anesthesia at the time of presentation and are at significant perioperative risk. Respiratory adverse events are very common and mandate close postanesthesia care.

Near-infrared spectroscopy for detection of vascular compromise in paediatric supracondylar fractures.

Children suffering supracondylar fractures of the humerus are at risk of vascular compromise, which is currently assessed clinically, although other modalities such as angiography, pulse oximetry, Doppler ultrasound and magnetic resonance angiography have been used. We sought to ascertain whether tissue haemoglobin oxygenation (StO2) measurement could distinguish between patients with and without clinical vascular compromise following supracondylar fractures of the humerus. We prospectively observed StO2 using near-infrared spectroscopy in 29 paediatric patients with supracondylar fractures requiring operative manipulation. The injured and uninjured volar forearm compartments were monitored immediately before and after fracture reduction. The relationship between StO2 in the injured and uninjured limb, and the presence of pre-operative vascular compromise was assessed. Seven out of 29 children presented with vascular compromise. Patients with clinical vascular compromise had significantly lower pre-reduction StO2 (63.5% ± 15%, mean ± standard deviation), compared to those without compromise (80.9% ± 10%). StO2 normalized following surgery in all children with vascular compromise. These improvements in muscle StO2 were associated, in all patients, with the clinical return of pulses and resolution of neurological symptoms if present. StO2 monitoring can identify patients with clinical vascular compromise, can identify the return of adequate perfusion following operative correction of supracondylar fractures, and may be a useful adjunct to clinical assessment.

Practical pain management in the neonate.

Neonatal care is advancing to levels where more neonates are now offered more invasive interventions, exposing them to more prolonged hospital care. Consequently, the provision of effective and consistent management of pain in these neonates has become a pressing challenge. Advances in neonatal care have not only increased the number of neonates, who are exposed to noxious stimuli, but, over recent decades, also altered the patterns of exposure. Both procedural and postoperative pain remain distinct in nature, prevalence and management, and need to be addressed separately. Recent advances in the management of neonatal pain have been facilitated by improved methods of pain assessment and an increased understanding of the developmental aspects of nociception. Over the past decade, there have been some advances in the available pharmacological armamentarium, modest clarification of the risks of both untreated pain and aggressive analgesic practice and a greater recognition of non-pharmacological analgesic techniques. However, even advanced health systems fail to consistently articulate pain management policy for neonates, institute regular pain assessments and bridge the gaps between research and clinical practice.

Use of the ASA Physical Status Grading System in pediatric practice.

BACKGROUND: The American Society of Anesthesiologists (ASA) Grading System is widely used to describe preoperative physical status. Inconsistency of grading between anesthetists has been demonstrated in studies using hypothetical adult patient scenarios. We aimed to investigate the use and interrater reliability of the ASA Grading System in pediatric anesthesia practice. METHODS: A two-part questionnaire was mailed to all 176 current members of the Society of Paediatric Anaesthesia in New Zealand and Australia (SPANZA). The first part of the questionnaire obtained information regarding type of practice, use of the ASA Grading System, opinions regarding grading systems in general and opinions as to the limitations of the ASA System. In Part II, respondents were presented with 15 hypothetical patient scenarios and asked to grade them using the ASA System. The scenarios were designed to cover a range of ages and conditions common in pediatric practice. RESULTS: There were 130 replies (73.9%) after two mailings. The majority of respondents had been in predominantly pediatric practice for >5 years, had read the ASA Grading System within the last 2 years, and used it regularly. However, 30% modified the grading system for use in pediatrics. Many limitations of the ASA System in pediatric practice were identified. There was considerable lack of consistency in the grading of the hypothetical patient scenarios, with each scenario receiving at least three different ASA gradings. Case scenarios involving trauma or airway compromise were associated with greater inconsistency. There was no demonstrable correlation between grading consistency and patient age, familiarity with the ASA Grading System or experience of the anesthetist. CONCLUSIONS: The ASA Grading System shows poor interrater reliability in pediatric practice, as it does in adults. This should be borne in mind when using the ASA System for clinical or scientific work in pediatrics. A physical status grading system developed specifically for use in pediatrics may reduce inconsistency.

Anesthesia for pediatric renal transplantation with and without epidural analgesia--a review of 7 years experience.

BACKGROUND: Few objective data exist describing current anesthesia practice for pediatric renal transplantation. We describe here, the experience from an Australian tertiary pediatric center that has continued an active pediatric renal transplantation program after relocation in 1995. Areas of interest include preoperative status, fluid management, hemodynamic stability, perioperative complications, and the use of epidural analgesia. In particular, the influence of perioperative epidural analgesia on hemodynamic stability is addressed. METHODS: A retrospective review of anesthesia records of all patients undergoing pediatric renal transplantation performed at the Children's Hospital at Westmead (CHW), from November 1995 to October 2002 was carried out. RESULTS: Fifty-three pediatric renal transplants were performed in 50 patients. Average age and weight were 10.2 years (range: 1-18 years) and 31.4 kg (range: 9-66 kg), respectively. A total of 14 recipients were less than or equal to 6 years of age. Twenty-four children were recipients of cadaveric transplants, 29 children received kidneys from living related donors. Few children presented with severe anemia (two patients) gross electrolyte abnormalities (three patients) or uncontrolled hypertension. Intraoperatively, all children had central venous pressure monitoring and only four had invasive arterial blood pressure monitoring. Average intraoperative fluid administration was 88 ml x kg(-1) (range: 30-190). Twenty-three children received blood transfusions intraoperatively. Postoperative analgesia was provided using an epidural infusion in 39 patients and an opioid infusion/patient controlled analgesia in the remainder. There was a tendency to greater hemodynamic stability in the group, which received intra-operative epidural analgesia. Half the patients who had epidural analgesia required parenteral opioid supplementation. Five patients had postoperative pulmonary edema. Minor postoperative adverse events included epidural associated motor block (three cases) and opioid related oversedation (one patient). No perioperative mortality or major morbidity was recorded. CONCLUSIONS: Anesthesia for renal transplantation in pediatric patients at CHW is safe and effective using a selected range of drugs and techniques. Pretransplant medical optimization, careful preoperative assessment, adequate monitoring and precise fluid management together with appropriate postoperative analgesia typify the perioperative care of CHW renal transplant recipients.