BACKGROUND: Coronavirus disease 2019 (COVID-19) is associated with high perioperative morbidity and mortality among adults. The incidence and severity of anesthetic complications in children with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is unknown. We hypothesized that there would be an increased incidence of intra- and postoperative complications in children with SARS-CoV-2 infection as compared to those with negative testing. METHODS: We conducted a retrospective cohort study analyzing complications for children <18 years of age who underwent anesthesia between April 28 and September 30, 2020 at a large, academic pediatric hospital. Each child with a positive SARS-CoV-2 test within the prior 10 days was matched to a patient with a negative SARS-CoV-2 test based on American Society of Anesthesiologists (ASA) physical status, age, gender, and procedure. Children who were intubated before the procedure, underwent organ transplant surgery, or had severe COVID-19 were excluded. The primary outcome was the risk difference of a composite of intra- or postoperative respiratory complications in children positive for SARS-CoV-2 compared to those with negative testing. Secondarily, we used logistic regression to determine the odds ratio for respiratory complications before and after adjustment using propensity scores weighting to adjust for possible confounders. Other secondary outcomes included neurologic, cardiovascular, hematologic, and renal complications, unanticipated postoperative admission to the intensive care unit, length of hospital stay, and mortality. RESULTS: During the study period, 9812 general anesthetics that had a preoperative SARS-CoV-2 test were identified. Sixty encounters occurred in patients who had positive SARS-CoV-2 testing preoperatively and 51 were included for analysis. The matched controls cohort included 99 encounters. A positive SARS-CoV-2 test was associated with a higher incidence of respiratory complications (11.8% vs 1.0%; risk difference 10.8%, 95% confidence interval [CI], 1.6–19.8; P = .003). After adjustment, the odds ratio for respiratory complications was 14.37 (95% CI, 1.59–130.39; P = .02) for SARS-CoV-2–positive children as compared to controls. There was no occurrence of acute respiratory distress syndrome, postoperative pneumonia, or perioperative mortality in either group. CONCLUSIONS: Pediatric patients with nonsevere SARS-CoV-2 infection had higher rates of perianesthetic respiratory complications than matched controls with negative testing. However, severe morbidity was rare and there were no mortalities. The incidence of complications was similar to previously published rates of perianesthetic complications in the setting of an upper respiratory tract infection. This risk persisted after adjustment for preoperative upper respiratory symptoms, suggesting an increased risk in symptomatic or asymptomatic SARS-CoV-2 infection.

We found an incidence of postdischarge nausea and vomiting of 14%. Intraoperative and postdischarge opioids increase the risk, with long-acting intraoperative opioids further accentuating the risk.

Introduction Fluid administration is an important aspect of the management of children undergoing liver transplantation and may impact postoperative outcomes. Our aim was to evaluate the association between volume of intraoperative fluid administration and our primary outcome, the duration of postoperative mechanical ventilation following pediatric liver transplantation. Secondary outcomes included intensive care unit length of stay and hospital length of stay. Methods We conducted a multicenter, retrospective cohort study using electronic data from three major pediatric liver transplant centers. Intraoperative fluid administration was indexed to weight and duration of anesthesia. Univariate and stepwise linear regression analyses were conducted. Results Among 286 successful pediatric liver transplants, the median duration of postoperative mechanical ventilation was 10.8 h (IQR 0.0, 35.4), the median intensive care unit length of stay was 4.3 days (IQR 2.7, 6.8), and the median hospital length of stay was 13.6 days (9.8, 21.1). Univariate linear regression showed a weak correlation between intraoperative fluids and duration of ventilation (r2 = .037, p = .001). Following stepwise linear regression, intraoperative fluid administration remained weakly correlated (r2 = .161, p = .04) with duration of postoperative ventilation. The following variables were also independently correlated with duration of ventilation: center (Riley Children's Health versus Children's Health Dallas, p = .001), and open abdominal incision after transplant (p = .001). Discussion The amount of intraoperative fluid administration is correlated with duration of postoperative mechanical ventilation in children undergoing liver transplantation, however, it does not seem to be a strong factor. Conclusions Other modifiable factors should be sought which may lead to improved postoperative outcomes in this highly vulnerable patient population.

Background: Anesthetic regimens using dexmedetomidine and short-acting opioids have been suggested as potential alternatives to sevoflurane-based anesthesia in children. The primary aim of this study is to compare demographics, intraoperative characteristics, and complications of general anesthetics in which dexmedetomidine and opioids were used without sevoflurane, or in combination with a low sevoflurane concentration, in children 36 months old and younger. The secondary aim is to evaluate intraoperative bispectral index (BIS) values when available in these patients. Methods: General anesthetics performed between January 1, 2017, and May 1, 2018, in children 2 years and younger who received dexmedetomidine and remifentanil, with or without sevoflurane, were identified. Additional anesthetics performed during this time in children 36 months and younger who received dexmedetomidine and opioids and had BIS monitoring were also identified. Charts were reviewed for demographic and intraoperative variables, including drug administration and hemodynamic data.

Laryngoscopy with Truview PCD TM N = 153 Median age, years (IQR) 4.0 (3.0-5.0) Median weight, kilograms (IQR) 18.7 (15.9-21.8) Gender (%) Female 72 (47.1%) Male 81 (52.9%) ASA status (%) 1 73 (47.7%) 2 71 (46.4%) 3 9 (5.9%) Cormack-lehane glottic grade (%) Grade 1 139 (93.3%) Grade 2 9 (6.0%) Grade 3 1 (0.7%) Median time to intubation in seconds (IQR) 110 (89-140) Intubation status Successful 140 (91.5%) Unsuccessful 13 (8.5%) Maximum percent desaturation (%) <5% 124 (81.1%) 5% to <10% 12 (7.8%) ≥10% 17 (11.1%)

Sugammadex is a novel reversal agent for the neuromuscular blocking agents rocuronium and vecuronium; it has been shown to rapidly and completely reverse neuromuscular blockade for rocuronium and vecuronium, even when the blockade is profound. We present the case of a 2-week-old, 850-g infant born at 25 weeks' gestation, who presented to the operating room for exploratory laparotomy and repair of ileal atresia. Anesthesia was induced and neuromuscular blockade with 1.2 mg/kg of rocuronium was administered. The neonate experienced rapid oxyhemoglobin desaturation and progressively became very difficult to mask ventilate. Direct laryngoscopy failed to result in successful intubation of the trachea and ventilation became impossible. To reverse the effects of rocuronium, 16 mg/kg of sugammadex was administered. Immediately after, the infant resumed spontaneous ventilation and was able to maintain adequate oxyhemoglobin saturation between 90% and 95% with supplemental oxygen. To our knowledge, this is the first report of successful reversal of neuromuscular blockade, with sugammadex, in an emergent situation after failure to intubate/ventilate an extremely low birth weight infant.

Background Age- and sex-specific reference nomograms for intraoperative blood pressure have been published, but they do not identify harm thresholds. The authors therefore assessed the relationship between various absolute and relative characterizations of hypotension and acute kidney injury in children having noncardiac surgery. Methods The authors conducted a retrospective cohort study using electronic data from two tertiary care centers. They included inpatients 18 yr or younger who had noncardiac surgery with general anesthesia. Postoperative renal injury was defined using the Kidney Disease Improving Global Outcomes definitions, based on serum creatinine concentrations. The authors evaluated potential renal harm thresholds for absolute lowest intraoperative mean arterial pressure (MAP) or largest MAP reduction from baseline maintained for a cumulative period of 5 min. Separate analyses were performed in children aged 2 yr or younger, 2 to 6 yr, 6 to 12 yr, and 12 to 18 yr. Results Among 64,412 children who had noncardiac surgery, 4,506 had creatinine assessed preoperatively and postoperatively. The incidence of acute kidney injury in this population was 11% (499 of 4,506): 17% in children under 6 yr old, 11% in children 6 to 12 yr old, and 6% in adolescents, which is similar to the incidence reported in adults. There was no association between lowest cumulative MAP sustained for 5 min and postoperative kidney injury. Similarly, there was no association between largest cumulative percentage MAP reduction and postoperative kidney injury. The adjusted estimated odds for kidney injury was 0.99 (95% CI, 0.94 to 1.05) for each 5-mmHg decrease in lowest MAP and 1.00 (95% CI, 0.97 to 1.03) for each 5% decrease in largest MAP reduction from baseline. Conclusions In distinct contrast to adults, the authors did not find any association between intraoperative hypotension and postoperative renal injury. Avoiding short periods of hypotension should not be the clinician’s primary concern when trying to prevent intraoperative renal injury in pediatric patients. Editor’s Perspective What We Already Know about This Topic What This Article Tells Us That Is New

What is Known and Objective Opioids are commonly administered to infants having surgery. Opioid induced hyperalgesia (OIH) is a known adverse effect of opioids in adults but can be difficult to identify in infants. Case Summary A 3‐month‐old received high‐dose fentanyl during anorectoplasty for imperforate anus. He had signs and symptoms of OIH immediately after surgery. His pain and agitation were difficult to manage but improved after he received ketamine. What is New and Conclusion OIH should be considered in infants postoperatively when pain worsens despite administration of escalating doses of opioids. Ketamine can be an effective therapeutic for OIH.