Perioperative hypersensitivity in children: A prospective multidisciplinary study.

BACKGROUND: There are few studies of perioperative hypersensitivity reactions in children. The diagnosis of perioperative hypersensitivity reactions may be under estimated because it is difficult to recognize the reactions. Anaphylaxis may go unnoticed because of patient unconsciousness. Urticaria may be missed due to sterile drapes. The aim of this study was to prospectively evaluate perioperative hypersensitivity reactions. METHODS: In this prospective study, patients with suspected perioperative hypersensitivity reactions aged 0-18 years who underwent surgery at the Department of Pediatric Surgery, Cerrahpasa Faculty of Medicine, between 2019 and 2021 were investigated. Suspected reactions in the perioperative period were graded according to the Ring and Messmer scale. Patients with suspected reactions were examined 4-6 weeks after the reaction. If necessary, specific IgE and basophil activation tests were performed. Reactions of grades III-IV were considered anaphylaxis. If one test modality was strongly positive and there was a relevant time point or repeated allergic reactions, or at least two test modalities were positive, hypersensitivity was confirmed. In all patients, serum tryptase levels were analyzed at the time of the reaction, 2 h after the reaction, and 4-6 weeks after the reaction as part of the allergic evaluation. RESULTS: A total of 29 patients (8 female, 21 male) suspected of having an intraoperative reaction during the study were included in the analysis. Perioperative hypersensitivity reactions were noted in 1 patient. The incidence of perioperative hypersensitivity reactions was reported to be 0.03% (n = 1/2861). While anaphylaxis was confirmed in 1 patient, 5 patients were considered possible anaphylaxis cases. CONCLUSION: Perioperative hypersensitivity reactions can be life-threatening and may recur with further administration. Collaboration between pediatric surgeons, anesthesiologists, and allergists can prevent further reactions. All suspected cases should be evaluated by an experienced allergist soon after the initial reaction.

Effect of paediatric caudal injection volume on optic nerve sheath diameter and regional cerebral oximetry: A randomised trial.

BACKGROUND: Caudal injections commonly used for neuraxial anaesthesia in children can displace cerebrospinal fluid cranially causing safety concerns in terms of raised intracranial pressure. Optic nerve sheath diameter (ONSD) is a noninvasive surrogate for the measurement of intracranial pressure. Regional cerebral oximetry (CrSO 2 ) can monitor brain oxygenation, which may decrease by a reduction in cerebral flow due to increased intracranial pressure. OBJECTIVES: Comparing how caudal injection volumes of 0.8 and 1.25 ml kg -1 influence ONSD and CrSO 2 within the first 30 min after injection. DESIGN: Prospective, randomised and parallel group trial. SETTING: Operating room. PATIENTS: Fifty-eight elective paediatric surgical patients between ages 1 and 7 years old, ASA class I or II, without previous intracranial or ocular pathology and surgery appropriate for single - shot caudal anaesthesia. INTERVENTION: Single-shot caudal anaesthesia with 0.8 ml kg -1 (group L, n  = 29) and 1.25 ml kg -1 (group H, n  = 29) of 2 mg kg -1 bupivacaine solution. MAIN OUTCOME MEASURES: Optic nerve sheath diameter measured with ultrasonography and regional cerebral oximetry measured by near - infrared spectroscopy before (NIRS), immediately after, 10, 20 and 30 min after the block. RESULTS: Mean ONSD values increased from a baseline of 4.4 ±â€Š0.2 mm to a maximum of 4.5 ±â€Š0.2 mm 20 min after injection in group L and from a baseline of 4.5 ±â€Š0.3 mm to a maximum of 4.8 ±â€Š0.3 mm 10 min after injection in group H. Eight of 29 patients in group H and none in group L had an ONSD increase by more than 10%. Both groups had a reduction of less than 2.5% in CrSO 2 . CONCLUSION: Caudal injection with 1.25 ml kg -1 increased ONSD, an indirect measurement of ICP, more than 0.8 ml kg -1 and neither volume caused a clinically important reduction in CrSO 2 . TRIAL REGISTRATION: ClinicalTrials.gov Identifier: NCT04491032.

The Assessment of Risk Factors for Difficult Intubation in Thyroid Patients.

OBJECTIVES: We aimed to assess possible risk factors related to difficult intubation in patients undergoing thyroid surgery. METHODS: We prospectively collected data of 200 patients scheduled for thyroid surgery. Clinical risk factors were defined as: Mallampati score, interincisor gap, thyromental distance, sternomental distance, range of neck motion, body mass index, neck circumference, goiter, the presence of radiological findings suggesting compression and thyroid weight. All evaluations were performed with Macintosh assessed for Cormack and Lehane (CL) classification and modified intubation difficulty scale (MIDS). RESULTS: It was observed that the proportion of patients with a thyroid weight ≥40 g, goiter, a Macintosh CL score = 3-4 and the mean neck circumference were significantly higher in the group with a MIDS score >5 (p = 0.018, p = 0.011, p < 0.001, respectively). CONCLUSION: The presence of a palpable goiter, thyroid weight ≥40 g and thyromental distance <6.5 cm were risk factors associated with difficult intubation in the multivariate regression model.

Pudendal nerve block for circumcision of pediatric patient with Pierre Robin Sequence: case report.

Pierre Robin Sequence (PRS) is a congenital condition characterized by micrognathia, glossoptosis, and cleft palate that presents with airway obstruction and developmental delay with or without other congenital anomalies. These patients' anesthesia management is challenging because of difficult ventilation and intubation. Regional anesthesia methods should be considered for these patients on a case-by-case basis. This report presents primary use of regional anesthesia for circumcision of a 9-year-old boy with PRS.

Challenging Anaesthesia Management of a Patient with Fryns Syndrome: A Case Report.

Fryns syndrome cases with variable characteristics require careful preoperative evaluation and have challenges for airway management. Craniofacial anomalies can complicate both ventilation and intubation. Extubation can also be problematic because of limited pulmonary reserves.

Reversal of Rocuronium-Induced Neuromuscular Blockade by Sugammadex Under Sevoflurane and Desflurane Anesthesia in Children.

OBJECTIVE: In children, neuromuscular blockers may have different effects with various inhalation agents and incomplete reversal of the blockade continues to be a problem. The aim of the study is to observe the effects of sugammadex on reversing the blockade by a single dose of rocuronium, the peak inspiratory pressure, hemodynamic parameters in children under sevoflurane and desflurane anesthesia. MATERIALS AND METHODS: One hundred forty-eight children aged 2-10 years old, to be operated under shortterm general anesthesia, were enrolled in this prospective randomized controlled trial. After induction, the patients were intubated at the end of TOF (Train-of-four) ratio of 1.0-0. The time taken until TOF reached 0.25 was recorded, and 2 mg/kg sugammadex was administered to the patients. The period until the TOF was at least 0.9 and in the first 10 minutes after sugammadex injection, peak inspiratory pressure, the systolic-diastolic arterial pressure, and the heart rate were monitored and possible side effects were observed in the recovery room. RESULTS: Following the injection of sugammadex, the time taken for TOF of 0.25 to reach >0.9 was significantly shorter in the 2-4-year-old age group under sevoflurane anesthesia. After sugammadex injection, a small but statistically significant increase in peak inspiratory pressure values was observed in Group D at the 2nd, 5th, and 10th minutes. CONCLUSION: Rapid and complete recovery was achieved from the block induced by a single dose of 0.6 mg/ kg rocuronium by the use of sugammadex which did not give rise to any side effects.

Endoscopic pilonidal sinus treatment (EPSiT) in the pediatric age group: Short-term results.

BACKGROUND: This study aims to evaluate the short term outcomes of the Endoscopic pilonidal sinus treatment (EPSiT) in the pediatric age group. METHODS: In this study, between June 2018 and July 2019, pediatric patients with pilonidal sinus (PS) who were treated with the EPSiT method were reviewed retrospectively. RESULTS: Of the twenty-nine patients (20 males, nine females), the average age was 15.5±2.8 years, and the average body mass index (BMI) was 25.8±4.2. Eight patients (28%) presented with a history of recurrence following the previous surgery. The average number of fistulas present in cases was 1.17 (1-2). The localization of the fistula was midline in twenty-four and lateral in five of the patients. The average time of the EPSiT procedure was 57±13.9 minutes, and the average time of hospital stay was 11.4±7.2 hours. The pain score average was 0.86 (range of 0-3) and the duration of analgesic use was 37 hr (12-72 hr). The mean post-operative time of total wound healing was 18.71 days (7-60 days) for primary presenting cases. Early wound healing was seen in twenty-five patients (average of 14 days), while late wound healing was observed in four patients (average of 60 days). The mean time of follow-up was 8.3±3.34 months. The average time of return to full daily activity was 2.1 days (0-30 days), while it was the same day for sixteen (53%) patients. In post-operative follow-up, early (bleeding: 1) and late (formation of granulation tissue: 1, recurrence: 8) complications were seen in nine patients. Of the eight patients (27.5%) whose recurrence was detected, seven were primary and one was secondary presenting patients. The average time of presentation for recurrence was 5.8 mo (1-10 mo). Re-EPSiT was applied in two of the eight patients with recurrence and is planned for five, while one of the patients lost to follow-up. CONCLUSION: EPSiT is an easily applicable, pain-free minimal invasive procedure with a short period of hospital stay and a fast return to routine daily activity. It provides comfortable and repeatable intervention in cases with recurrences after the EPSiT procedure and other methods for PS treatment.

Pudendal nerve block for circumcision of pediatric patient with Pierre Robin Sequence: case report

Abstract Pierre Robin Sequence (PRS) is a congenital condition characterized by micrognathia, glossoptosis, and cleft palate that presents with airway obstruction and developmental delay with or without other congenital anomalies. These patients' anesthesia management is challenging because of difficult ventilation and intubation. Regional anesthesia methods should be considered for these patients on a case-by-case basis. This report presents primary use of regional anesthesia for circumcision of a 9-year-old boy with PRS.