Postoperative Outcome In Children Research Articles

Cochlear Implantation in Pediatric Cochlear Nerve Deficiency: A Systematic Review and Meta-Analysis.

Cochlear nerve deficiency (CND) is commonly implicated in moderate-to-profound pediatric sensorineural hearing loss (SNHL). Although cochlear implantation (CI) was previously contraindicated in CND patients, recent studies have demonstrated the potential for auditory response to CI in a subset of CND patients, though clinical outcomes remain variable. This study aims to evaluate pre- and postoperative speech and auditory outcomes of CI in pediatric patients with bilateral SNHL and radiographically confirmed CND. Embase and Ovid MEDLINE. A systematic review was conducted to identify studies reporting pre- and postoperative outcomes of children with CND confirmed by magnetic resonance imaging who underwent CI. A random-effects model was used to account for within- and between-study variance in speech and auditory outcomes. After abstract screening of 818 distinct articles, 16 studies were selected for final inclusion, consisting of 248 patients with cochlear nerve hypoplasia or aplasia who underwent CI. Various speech perception and language development tests were investigated across studies (Speech Intelligibility Rating, Speech Perception Category, Speech Awareness Thresholds, Meaningful Auditory Integration Scale, Meaningful Use of Speech Scale, Categories of Auditory Performance, and Auditory Level). Pooled outcomes demonstrated improvement in speech perception after CI in pediatric patients with CND (SMD 2.18, 95% CI 1.68-2.69). Indications for CI are expanding as research demonstrates benefit in populations previously thought inappropriate. Our study demonstrates global postoperative improvement in speech and auditory outcomes in children with bilateral SNHL and CND after CI. NA Laryngoscope, 2024.

Effect of enhanced recovery after surgery on postoperative outcomes in children undergoing robot-assisted laparoscopic pyeloplasty

To assess the effects of the enhanced recovery after surgery (ERAS) perioperative protocol on the outcomes of robot-assisted laparoscopic pyeloplasty (RALP) in pediatric patients. A total of 57 children who underwent RALP at our center between November 2021 and December 2023 were included in the study. They were randomly assigned to either the ERAS (intervention) group or the non-ERAS (control) group. The analysis focused on comparing the length of hospital stay, recovery of gastrointestinal function, incidence of complications within 90 days post-surgery, postoperative extubation time (urinary tube and double-J tube), postoperative auxiliary examinations, and readmission rates within 30 days. Additionally, the patients were divided into two age groups: <4 years old and ≥4 years old, to assess pain severity. There were no significant differences in preoperative general information, preoperative auxiliary examination findings, or intraoperative conditions between the ERAS and non-ERAS groups. The ERAS group had a significantly shorter postoperative hospital stay compared to the non-ERAS group. Furthermore, the time to the first postoperative bowel movement was shorter, and the incidence of postoperative complications was significantly lower in the ERAS group. Among children <4 years old, there was no significant difference in pain severity between the two groups. However, in children ≥4 years old, the ERAS group experienced significantly lower pain levels at 6 and 24h post-surgery compared to the non-ERAS group. The findings of this prospective randomized controlled trial should determine if ERAS is superior to traditional perioperative management in children undergoing RALP, particularly regarding postoperative hospital stay, intestinal function recovery, pain response, and complication rates. We anticipate that our data will offer valuable clinical insights and guidance for the implementation of ERAS in pediatric robotic surgery for urinary diseases. The ERAS protocol can reduce the length of hospital stay, aid in the recovery of gastrointestinal function, and lower postoperative complication rates. It also has the potential to lessen postoperative pain to varying degrees in certain pediatric patients. ERAS is a safe and effective protocol for pediatric patients undergoing RALP.

Preoperative Anxiety Scores as Predictors of Postoperative Outcomes in Pediatrics Undergoing Cardiac Surgery: An Observational Study

Abstract Background: Preoperative anxiety has a significant impact on many pediatric surgery patients annually. This study aimed to evaluate the preoperative anxiety scores as predictors of postoperative outcomes in children undergoing cardiac surgery. Subjects and Methods: This cohort study involved 133 children between the ages of 2 and 6 years who underwent cardiac surgery. Preoperative anxiety was evaluated using the happy, relaxed, anxious, distressed scale (HRAD±), Modified Yale Preoperative Anxiety Scale (mYPAS), and Induction Compliance Checklist (ICC) scores. Emergence agitation (EA) was assessed using the Watcha scale at 30 min intervals during the initial 4 h period and again at 24 h. The study’s primary outcome was the correlation between the HRAD± score and postoperative agitation. Secondary outcomes included the correlation between each of the mYPAS and ICC scores and postoperative agitation, as well as the incidence and severity of postoperative agitation. Results: Anxiety was observed in 70.68% of patients. The mean mYPAS score increased after separation, entering the operating room, and during induction of anesthesia compared to the holding area (49.3 ± 5.27, 51.7 ± 4.98, 63.4 ± 5.8 vs. 36.7 ± 4.6). There were significant positive associations between postoperative agitation and preoperative agitation scores, including HRAD±, mYPAS, and ICC scores (P &lt; 0.001). The incidence and severity of EA were high at 0.5 h and then decreased over 24 h postoperatively. Conclusion: Preoperative HRAD±, mYPAS, and ICC scores may predict postoperative agitation in children undergoing cardiac surgery.

Effect of Preoperative Clear Liquid Consumption on Postoperative Recovery in Pediatric Patients Undergoing Minimally Invasive Repair of Pectus Excavatum: A Prospective Randomized Controlled Study.

Background/Objectives: Preoperative fasting guidelines traditionally aim to reduce pulmonary aspiration risk. However, concerns over the adverse effects of prolonged fasting have led to exploring alternatives. This study aimed to investigate the impact of preoperative clear liquid intake on postoperative outcomes in children undergoing minimally invasive repair of pectus excavatum (MIRPE). Methods: A prospective randomized controlled study was conducted on children aged 3-6 years scheduled for elective MIRPE. Patients were randomized into either a routine overnight fasting group (NPO) or a clear liquid group. The incidence and severity of emergence delirium (ED) were assessed using Pediatric Anesthesia Emergence Delirium (PAED) and Watcha scales at recovery room. Postoperative pain scores and opioid requirements were evaluated at intervals of 1-6 h, 6-12 h, and 12-24 h after surgery. Results: Fasting time was 178.6 ± 149.5 min and 608.9 ± 148.4 min in the clear liquid group compared and NPO group, respectively. The incidence of ED, measured by PAED and Watcha scales, was lower in the clear liquid group (PAED score ≥ 12: 55.6% vs. 85.2%, p = 0.037; Watcha score ≥ 3: 51.9% vs. 85.2%, p = 0.019). The highest PAED score recorded in the recovery room was significantly lower in the clear liquid group (11.4 ± 2.8 vs. 14.6 ± 2.8, p < 0.001). Clear liquid group showed significantly lower pain scores at 1-6, 6-12, and 12-24 h postoperatively. Additionally, clear liquid group had lower opioid requirement at 1-6 and 6-12 h postoperatively. Conclusions: Preoperative clear liquid consumption was associated with a lower incidence of ED in pediatric patients undergoing MIRPE.

Tools used to measure the impact of comorbidities on surgical outcomes in children with complex chronic conditions: A scoping review.

To identify and describe assessment tools used to measure the impact of comorbidities on postoperative outcomes in children with complex chronic conditions (CCC). This was a scoping review using five electronic databases. The search was conducted in March 2022 by a medical librarian. There were no date or language restrictions. Included studies were full-text articles published in peer-reviewed journals that described a tool used to measure the impact of comorbidities in children with CCC to assess postoperative outcomes. A standardized data charting tool was used. A total of 2157 articles were retrieved. Five studies reporting on six comorbidity measures met inclusion criteria. All were cohort studies and were secondary analyses of data from an administrative database (n = 4) or a patient registry (n = 1). Sample sizes ranged from 645 to 25 747 participants. One paper described the assessment of reliability. Only one form of validity - predictive validity - was assessed in three papers for five measures. Findings from this scoping review revealed a paucity of comorbidity assessment tools validated for use with children with CCC; significant conceptual and measurement challenges exist in the current scientific literature.

Association of Vasoactive-Inotropic Score with Postoperative Outcomes in Children with Congenital Heart Diseases Undergoing Cardiac Surgery

Objectives: This cross-sectional study aimed to evaluate the association between the vasoactive-inotropic score (VIS) and post-operative morbidity and mortality in pediatric patients undergoing cardiac surgery for congenital heart diseases (CHDs). Methodology: A cross-sectional study was conducted at the Pediatric Cardiac Intensive Care Unit (PCICU) of the National Institute of Cardiovascular Diseases, Karachi, Pakistan, between October 2021 and March 2022. A total of 101 children up to 18 years of age admitted to the PCICU were included in the analysis. Demographic characteristics and peri-operative variables were recorded, and VIS scores were collected to assess their association with post-surgery outcomes. A score of ≥15 was considered high, while a score &lt;15 was considered low. Results: Among the 101 children included in the study, 49 (48.5%) were male and 52 (51.5%) were female, with a mean age of 7.45±2.81 years. Fifteen (14.9%) patients had a high VIS score during their ICU stay, while 86 patients had a low VIS score. Low cardiac output was the most common post-operative morbidity observed in 9 (8.9%) children, followed by hepatic dysfunction and acute kidney injury, each reported in 8 (7.9%) children. Significant associations were found between high VIS and hepatic dysfunction (p&lt;0.001), acute kidney injury (p&lt;0.001), low cardiac output (p&lt;0.001), neurological dysfunction (p=0.016), and mortality (p&lt;0.001). Conclusion: High VIS scores were significantly associated with poor short-term morbidity and mortality in children undergoing corrective surgery for CHDs. The VIS system can aid in predicting disease progression, severity, and outcomes in pediatric cardiac surgical patients.

Comparison of Deep and Moderate Neuromuscular Blockade for Major Laparoscopic Surgery in Children: A Randomized Controlled Trial.

Neuromuscular blocking agents are routinely used in laparoscopic surgery to optimize operative conditions. We compared the effect of a deep and moderate neuromuscular blockade (NMB) on surgical conditions and postoperative outcomes in children undergoing major laparoscopic surgery. Sixty children aged 2-14 years scheduled to undergo major laparoscopic surgery were randomly allocated to deep (post-tetanic count 1-2 twitches) or moderate (train-of-four 1-2 twitches) NMB groups. The anesthesia was maintained with propofol and remifentanil, and the NMB was maintained with a rocuronium continuous infusion. At the end of the operation, the NMB were antagonized with sugammadex. The intra-abdominal pressure, airway pressure, Leiden Surgical Rating Scale, intraoperative hemodynamics, drug usages, duration of surgery, postoperative recovery time, pain, and complications were compared between the groups. The maximum and mean intra-abdominal pressure, the peak inspiratory pressure, and mean airway pressure were significantly lower in the deep NMB group than in the moderate NMB group (p < 0.001). The Leiden Surgical Rating Scale and the dosage of rocuronium were significantly higher in the deep NMB group than the moderate NMB group (p < 0.001). The intraoperative hemodynamics, duration of surgery, post-operative recovery time, pain, and the incidence rate of complications were not significantly different between the groups (p > 0.05). A deep NMB provided better operative conditions and similar recovery profiles compared with a moderate NMB as reversed with sugammadex in children undergoing major laparoscopic surgery. Chinese Clinical Trial Registry, No. ChiCTR2100053821.

Does Delayed Diagnosis of Hirschsprung Disease Impact Post-operative and Functional Outcomes? A Multi-Center Review From the Pediatric Colorectal and Pelvic Learning Consortium

BackgroundHirschsprung Disease (HD) is a rare cause of functional bowel obstruction in children. Patients are typically diagnosed in the neonatal period and undergo pull-through (PT) soon after diagnosis. The optimal management and post-operative outcomes of children who present in a delayed fashion are unknown. MethodsA multi-center retrospective review of children with HD was performed at participating Pediatric Colorectal and Pelvic Learning Consortium sites. Children were stratified by age at diagnosis (neonates <29 days; infants 29 days–12 months; toddler 1 year–5 years and child >5 years). Results679 patients with HD from 14 sites were included; Most (69%) were diagnosed in the neonatal period. Age at diagnosis was not associated with differences in 30-day complication rates or need for PT revision. Older age at diagnosis was associated with a greater likelihood of undergoing fecal diversion after PT (neonate 10%, infant 12%, toddler 26%, child 28%, P < 0.001) and a greater need for intervention for constipation or incontinence postoperatively (neonate 56%, infant 62%, toddler 78%, child 69%, P < 0.001). ConclusionDelayed diagnosis of HD does not impact 30-day post-operative outcomes or need for revision surgery but, delayed diagnosis is associated with increased need for fecal diversion after pull-through. Level of EvidenceIII

Mandibular Distraction Osteogenesis in Children and Adolescents: A Clinical and Radiographic Research Using Cone-Beam Computed Tomography.

The aim of this cross-sectional study was to evaluate, via cone-beam computed tomography, the long-term postoperative outcome in children treated with mandibular distraction osteogenesis. All young patients treated with mandibular distraction osteogenesis (MDO), during a 16-year period, at the University Department of Oral and Maxillofacial Surgery of a Pediatric Hospital, were recalled, and various clinical and radiographic parameters were recorded. Eleven patients were included: 5 with hemifacial microsomia (HFM) and 6 with mandibular micrognathia. In all cases, MDO had been successful in regular follow-up and decannulation, soon after MDO, was achieved in all tracheostomy cases. The long-term result in cases of HFM was found stable, functionally and esthetically accepted, although less satisfactory than in regular follow-up; in micrognathia patients, relapse of different degrees was registered in 4 of 6 cases, without any need for tracheostomy though. Detailed and accurate information was obtained by cone-beam computed tomography (CBCT). The shape of the regenerated bone was irregular in HFM cases and relatively normal in the micrognathia cases. Quality of the regenerated bone was normal in all patients. The irregular shape registered in HFM cases did not compromise a safe orthognathic operation. Distraction osteogenesis remains an early treatment choice in cases of mandibular deformities. Long-term findings showed that there is a degree of relapse with growth, which was more obvious in mandibular micrognathia cases. Computed tomography contributes to detailed evaluation of changes at the distraction site.

3M antimicrobial incise drape combined with MEBO in wound recovery of postoperative hypospadias surgery.

To evaluate the efficacy of different dressing methods in wound healing and the postoperative outcome in children who underwent hypospadias repair. Altogether 109 children with distal hypospadias who underwent urethroplasty were recruited from our hospital between January 2021 and March 2023. All patients were randomized in two groups according to the different dressing methods: Group A receiving 3M antimicrobial incise drape + MEBO (moisture-exposed burn ointment) and Group B receiving absorbent dressing + elastic bandage dressing. The age at surgery, operation time, bleeding during the dressing, postoperative changes in glans color, dressing fell off, comfort of children during the dressing, difficulty in dressing removal, and degree of pain during dressing removal were compared between the two groups. Differences in age at surgery (p = 0.337) and operation time (p = 0.055) were not significant between the two groups. The overall effectiveness of the dressing was better in Group A than that in Group B. Only five cases in Group A had blood leakage after dressing (p = 0.006), and there was no dressing dislocation (p < 0.001) or glans color abnormality (p < 0.001). Moreover, the number of complication cases was less. The overall comfort and pain degree during dressing removal in Group A was better than that in Group B (p < 0.001). Postoperative dressing using 3M antimicrobial incise drape + MEBO can achieve lower incidence rates of bleeding during dressing, postoperative glans darkening, and dressing falling off, a lower pain degree during dressing removal, and a better overall comfort level than those of the control group. This method is cost-effective and clinically safe, which contributes to the postoperative recovery of children with hypospadias and is thus worth promoting and applying.

Outcomes After Pectus Excavatum Repair: Center Volume Matters

PurposePectus excavatum (Pectus) repair may be offered for those with significant cardiopulmonary compromise or severe cosmetic defects. The influence of hospital center volume on postoperative outcomes in children is unknown. This study aimed to investigate the outcomes of children undergoing Pectus repair, stratified by hospital surgical volume. MethodsThe Nationwide Readmission Database was queried (2016–2020) for patients with Pectus (Q67.6). Patients were stratified into those who received repair at high-volume centers (HVCs; ≥20 repairs annually) versus low-volume centers (LVCs; <20 repairs annually). Demographics and outcomes were analyzed using standard statistical tests. ResultsA total of 9414 patients with Pectus underwent repair during the study period, with 69% treated at HVCs and 31% at LVCs. Patients at LVCs experienced higher rates of complications during index admission, including pneumothorax (23% vs. 15%), chest tube placement (5% vs. 2%), and overall perioperative complications (28% vs. 24%) compared to those treated at HVCs, all p < 0.001.Patients treated at LVCs had higher readmission rates within 30 days (3.8% vs. 2.8% HVCs) and overall readmission (6.8% vs. 4.7% HVCs), both p < 0.010. Among readmitted patients (n = 547), the most frequent complications during readmission for those initially treated at LVCs included pneumothorax/hemothorax (21% vs. 8%), bar dislodgment (21% vs. 12%), and electrolyte disorders (15% vs. 9%) compared to those treated at HVCs. ConclusionPediatric Pectus repair performed at high-volume centers was associated with fewer index complications and readmissions compared to lower-volume centers. Patients and surgeons should consider this hospital volume-outcome relationship. Type of StudyRetrospective Comparative. Level of EvidenceIII.

The beneficial use of nitric oxide during cardiopulmonary bypass on postoperative outcomes in children and adult patients: a systematic review and meta-analysis of 2897 patients.

Investigate inhaled nitric oxide's influence on mortality rates, mechanical ventilation and cardiopulmonary bypass duration, and length of stay in the intensive care unit and hospital when administered during cardiopulmonary bypass. Following the PRISMA guidelines, we searched four electronic databases (PubMed, EMBASE, Cochrane Library, and Web of Science) up to 4th March 2023. The protocol was registered in the PROSPERO database with ID: CRD42023423007. Using Review Manager software, we reported outcomes as risk ratios (RRs) or mean difference (MD) and confidence intervals (CIs). The meta-analysis included a total of 17 studies with 2897 patients. Overall, there were no significant differences in using nitric oxide over control concerning mortality (RR = 1.03, 95% CI 0.73 to 1.45; P = 0.88) or cardiopulmonary bypass duration (MD = -0.14, 95% CI - 0.96 to 0.69; P = 0.74). The intensive care unit days were significantly lower in the nitric oxide group than control (MD = -0.80, 95% CI - 1.31 to -0.29; P = 0.002). Difference results were obtained in terms of the length of stay in the hospital according to sensitivity analysis (without sensitivity [MD = -0.41, 95% CI - 0.79 to -0.02; P = 0.04] vs. with sensitivity [MD = -0.31, 95% CI - 0.69 to 0.07; P = 0.11]. Subgroup analysis shows that, in children, nitric oxide was favored over control in significantly reducing the duration of mechanical ventilation (MD = -4.58, 95% CI - 5.63 to -3.53; P < 0.001). Using inhaled nitric oxide during cardiopulmonary bypass reduces the length of stay in the intensive care unit, and for children, it reduces the duration of mechanical ventilation.

Preoperative low muscle mass and early postoperative outcomes in children undergoing living donor liver transplantation: A retrospective study.

Low skeletal muscle mass may develop in children with end-stage liver disease, affecting postoperative outcomes. We retrospectively investigated whether preoperative low muscle mass was associated with early postoperative outcomes in pediatric patients undergoing living donor liver transplantation (LDLT). Electronic medical records of children (age below 12y) who underwent LDLT between February 1, 2007, and January 31, 2018, were reviewed. The cross-sectional areas of psoas, quadratus lumborum, and erector spinae muscles at the level of fourth-fifth lumbar intervertebral disks were measured using abdominal CT images, divided by the square of the height and were added to obtain the total skeletal muscle index (TSMI). The patients were divided into two groups according to the median TSMI in the second quintile (1859.1mm 2 /m 2 ). Complications in the early postoperative period (within 30d after surgery) classified as Clavien-Dindo grade 3 or higher were considered major complications. Logistic regression analyses were performed to determine the association between preoperative low muscle mass and early postoperative outcomes. In the study population of 123 patients (median age, 14mo; range, 8-38mo) who underwent LDLT, 29% and 71% were classified in the low (mean TSMI, 1642.5 ± 187.0mm 2 /m 2 ) and high (mean TSMI 2188.1 ± 273.5mm 2 /m 2 ) muscle mass groups, respectively. The rates of major complications, mechanical ventilation >96 hours, intensive care unit stay >14 days, hospital stay >30 days, and in-hospital mortality were not significantly different between the 2 groups. Additionally, adverse outcomes according to pediatric end-stage liver disease scores and sex were not significantly different between the 2 groups. In conclusion, preoperative low muscle mass defined by TSMI was not associated with early postoperative outcomes in pediatric patients undergoing LDLT.

Outcomes of the Kawashima: A Society of Thoracic Surgeons Congenital Heart Surgery Database Analysis

BackgroundWe aimed to evaluate the effect of age at operation on postoperative outcomes in children undergoing a Kawashima operation. MethodsThe Society of Thoracic Surgeons Congenital Heart Surgery Database was queried for Kawashima procedures from January 1, 2014, to June 30, 2020. Patients were stratified by age at operation in months: 0 to <4, 4 to <8, 8 to <12, and >12. Subsequently, outcomes for those in whom the Kawashima was not the index operation and for those undergoing hepatic vein incorporation (Fontan completion or hepatic vein–to–azygos vein connection) were evaluated. ResultsWe identified 253 patients who underwent a Kawashima operation (median age, 8.6 months; median weight, 7.4 kg): 12 (4.7%), 0 to <4 months; 96 (37.9%), 4 to <8 months; 81 (32.0%), 8 to <12 months; and 64 (25.3%), >12 months. Operative mortality was 0.8% (n = 2), with major morbidity or mortality in 17.4% (n = 44), neither different across age groups. Patients <4 months had a longer postoperative length of stay (12.5 vs 9.3 days; P = .03). The Kawashima was not the index operation of the hospital admission in 15 (5.9%); these patients were younger (6.0 vs 8.4 months; P = .05) and had more preoperative risk factors (13/15 [92.9%] vs 126/238 [52.9%]; P < .01). We identified 173 patients undergoing subsequent hepatic vein incorporation (median age, 3.9 years; median weight, 15.0 kg) with operative mortality in 6 (3.5%) and major morbidity or mortality in 30 (17.3%). ConclusionsThe Kawashima is typically performed between 4 and 12 months with low mortality. Morbidity and mortality were not affected by age. Hepatic vein incorporations may be higher risk than in traditional Fontan procedures, and ways to mitigate this should be sought.

Comparison of Postoperative Outcome in Children Undergoing Inguinal Hernia Repair Using Regional With General Versus General Anesthesia Alone: A Single Center Study.

Inguinal hernia repair is one of the most common general surgical procedures. It has been performed under local, regional, or general anesthesia. We hypothesized that using regional plus general anesthesia rather than general anesthesia alone would improve outcomes in neonates and pediatric patients undergoing hernia repair. This is a retrospective cohort study, including all pediatric patients who underwent inguinal hernia repair from 2015-2021. We divided patients into two groups. The first group was labeled "general anesthesia" (GA), while the second group was labeled "combined general and regional anesthesia" (GA+RA). We compared both groups in terms of demographic data, intraoperative outcome variables, and postoperative outcome variables. 212 children fulfilled the study criteria, with 57 in the GA group and 155 in the GA+RA group. Demographic and preoperative data were comparable between both groups except for age, which was 60.3±49.4 months in the GA group versus 26.7±33.13 months in the GA+RA group (p<.0001). Outcome variables demonstrated statistically significant improvement in postoperative pain occurrence, length of hospital stay, incidence of bradycardia, and need for mechanical ventilation in the GA+RA group in comparison to the GA group with P values of 0.031, 0.02, 0.005, and 0.02, respectively. Using regional and general anesthesia techniques rather than general anesthesia alone is associated with a decrease in postoperative pain, length of hospital stay, incidence of bradycardia, and need for mechanical ventilation. Further studies are still warranted to validate our conclusions.

Effects of oxycodone pharmacogenetics on postoperative analgesia and related clinical outcomes in children: a pilot prospective study.

Background: Variability in the pharmacokinetics and pharmacodynamics of oxycodone in children undergoing surgery could be due to genetic polymorphisms. Materials & methods: The authors studied the association between clinical outcomes and pharmacogenes in children undergoing major surgery. A total of 89 children (35 undergoing pectus excavatum repair and 54 undergoing spinal fusion) were recruited. Results: OPRM1 SNP rs6902403 showed an association with maximum pain score and total morphine equivalent dose (p<0.05). Other polymorphisms in OPRM1 SNP, PXR, COMT and ABCB1 were also shown to be associated with average morphine equivalent dose, length of hospital stay and maximum surgical pain (p<0.05). Conclusion: This study demonstrates novel associations between the above pharmacogenes and oxycodone's pharmacokinetics as well as postoperative outcomes in children. Clinical trial registration: NCT03495388 (ClinicalTrials.gov).

603: BILIARY ATRESIA AND ACUTE-ON-CHRONIC LIVER FAILURE IN CHILDREN: OUTCOMES POST-LIVER TRANSPLANTATION

Introduction: Long term outcomes in patients with biliary atresia (BA) undergoing liver transplantation (LT) have improved but there remains significant perioperative morbidity. Acute-on-chronic liver failure (ACLF) is characterized by decompensated liver disease, multi-organ failure, and high mortality. Though well described in adults, pediatric ACLF and its impact on postoperative outcomes in children with BA undergoing LT is relatively understudied. Methods: A single-institutional retrospective analysis was performed. Patients aged < 18 years with BA who underwent LT between 1/2011 – 12/2021 were included. Patients who died awaiting LT, and those who received LT with incomplete documentation were excluded. ACLF was defined using the North American Consortium for the Study of End-Stage Liver Disease (NACSELD)-ACLF criteria: presence of 2 or more extrahepatic organ failures, and was characterized during the index admission for LT. Mann Whitney U test for continuous variables and Fischer Exact for categorical variables was used. Results are expressed as medians with interquartile ranges. Results: Of 132 patients, 10 (7.5%) who died awaiting LT and 15 (11.4%) who had incomplete pre-LT documentation were excluded. 107 (65% female; median age 14 [9-31] months) were included in this study. Based on the NACSELD-ACLF criteria, 11 (10.3%) patients had ACLF during index admission. Five of 11 (46%) patients were listed status 1B prior to LT. Patient with ACLF were younger at time of LT (9 [7-11] vs. 15 [10-37] months, p < 0.001), had a higher PELD score (34 [24-35] vs. 28 [24-33]; p < 0.001), higher total length of stay (178 [119-224] vs. 21 [9-48] days, p < 0.001), and had a higher rate of return to the operating room (36% vs. 18%; p < 0.01) compared to the non-ACLF group (n=96). The 1-year readmission (64 % vs. 38 %; p = 0.09) and overall 1-year survival (100% vs. 91%; p=0.28) rates were comparable between ACLF and non ACLF groups. Conclusions: In children with BA undergoing LT, survival outcomes post-LT between ACLF and non ACLF patients are comparable despite increased perioperative morbidity seen in those with ACLF. This reiterates the need for further studies to understand the impact of ACLF and prioritization of these critically ill patients for LT.

Clinical Observation of Low-Temperature Plasma Knife Tonsil Adenoidectomy for Pediatric Snoring and Analysis of Influencing Factors.

To investigate the clinical efficacy of low-temperature plasma knife tonsil adenoidectomy for pediatric snoring and to analyze the factors influencing the efficacy. 90 children with snoring who were scheduled for surgical treatment in our hospital from June 2020 to December 2021 were selected as the research objects. According to the random number table method, they were divided into control group (group C) and observation group (group O), with 45 cases in each group. The children in group C were treated with power cutting system to remove adenoids combined with conventional peeling of bilateral tonsils, while the children in group O were treated with low-temperature plasma adenoidectomy combined with bilateral tonsillectomy, and both the groups received psychological care, preoperative preparation, health guidance, postoperative posture care and close monitoring of vital signs during the perioperative period. The clinical efficacy, perioperative related indexes (including operation time, intraoperative bleeding, postoperative pain time, and hospital stay) were compared between the two groups. The apnea-hypopnea index (AHI), oxygen decrement index (ODI), longest apnea time (LAT), and lowest oxygen saturation (LSaO2) were measured before operation and 1 week after operation to evaluate the ventilatory function of the two groups. According to the curative effect, 90 children with snoring were divided into cure + significant effective group and valid + invalid group. The general data and preoperative biochemical indexes of the two groups were collected, and logistic regression model was used to analyze the related influencing factors of the curative effect. The total effective rate of group O (100.00%, 45 cases) was significantly higher than that of group C (91.11%, 41 cases) (P < 0.05); the operative time, intraoperative bleeding, postoperative pain time, and hospitalization time of group O were shorter/less than those of group C; the AHI, ODI, and LAT of group O at 1 week after surgery were shorter/less than those of the control group; and LSaO2 was higher than that of group C. The differences were statistically significant (P < 0.05). Univariate analysis showed that there were significant differences in age, BMI, course of disease, preoperative AHI, preoperative LsaO2, and surgical method between cure + significant effective group and valid + invalid group (P < 0.05). Multivariate analysis showed that high BMI, high preoperative AHI, and power cutting system for adenoids combined with routine peeling of the bilateral tonsils were independent risk factors for postoperative outcome in children with obstructive sleep apnea syndrome (OSAS) (P < 0.05).

Social vulnerability index (SVI) and poor postoperative outcomes in children undergoing surgery in California

IntroductionArea-based social determinants of health (SDoH) associated with disparities in children's surgical outcomes are not well understood, though some may be risk factors modifiable by public health interventions. MethodsThis retrospective cohort study investigated the effect of high social vulnerability index (SVI), defined as ≥90th percentile, on postoperative outcomes in children classified as ASA 1–2 who underwent surgery at a large institution participating in the National Surgical Quality Improvement Program (2015–2021). Primary outcome was serious postoperative complications, defined as postoperative death, unplanned re-operation, or readmission at 30 days after surgery. ResultsAmong 3278 pediatric surgical procedures, 12.1% had SVI in the ≥90th percentile. Controlling for age, sex, racialization, insurance status, and language preference, serious postoperative complications were associated with high overall SVI (odds ratio [OR] 1.58, 95% confidence interval [CI] 1.02–2.44) and high socioeconomic vulnerability (SVI theme 1, OR 1.75, 95% CI 1.03–2.98). ConclusionNeighborhood-level socioeconomic vulnerability is associated with worse surgical outcomes in apparently healthy children, which could serve as a target for community-based intervention.

Clinical Characteristics and Post-Operative Outcomes in Children with Very Severe Obstructive Sleep Apnea.

Available information on clinical characteristics and post-operative outcomes in children with very severe obstructive sleep apnea (OSA) is limited. Our study evaluates the clinical features and polysomnographic (PSG) variables that predict post-operative outcomes in children with an obstructive apneal hypopnea index (AHI) of more than 25 events/hr. In this study from a single tertiary care center, we performed a retrospective chart review of patients with an AHI > 25/hr, who underwent tonsillectomy and adenoidectomy (T&A) between January 2016 and September 2021. In total, 50 children were included in the study: 26.0% (13/50) of children experienced post-operative respiratory events and four children needed intubation and ventilator support. Compared with children without respiratory events, children requiring post-operative respiratory interventions were younger (4.4 ± 5.2 vs. 8.0 ± 5.2 years; p = 0.04), had higher pre-operative AHI (73.6 ± 27.4 vs. 44.8 ± 24.9; p < 0.01), lower oxygen nadirs (70.0 ± 13.0% vs. 83.0 ± 7.0%; p < 0.01), and had lower body metabolic index Z-scores (−0.51 ± 2.1 vs. 0.66 ± 1.5; p < 0.04). Moderate to severe residual OSA was identified in 70% (24/34) of children with available post-operative PSG; younger children had better PSG outcomes. Our study shows that post-operative respiratory events are frequent in children with very severe OSA, particularly with an AHI > 40/h, younger children (<2 years of age), lower oxygen saturation (SpO2), and poor nutritional status, necessitating close monitoring.