Toxic Epidermal Necrolysis Secondary to Iodine Versus Methimazole in a Pediatric Patient With Complex Autoimmune Disease.

We report a case of a 17-year-old girl who developed toxic epidermal necrolysis (TEN) secondary to preoperative iodine administration before thyroidectomy for Graves' disease. Past medical history was significant for COVID-19 and multisystem inflammatory syndrome in Children (MISC-C), with subsequent diagnoses of type 1 diabetes mellitus (T1DM), Addison disease, and Graves' disease. Her Graves disease was initially managed with methimazole. While there are reported cases of Stevens-Johnson syndrome (SJS) and TEN due to methimazole, the patient had discontinued methimazole over one month prior. Therefore, she likely represents the first case of TEN reported secondary to potassium iodide solution in a pediatric patient. Given the rarity of TEN in pediatric patients, our case highlights the challenges in managing complex autoimmune conditions and underscores the importance of careful medication choices in such cases.

Is there an OAHI or O2 nadir that predicts the need for preoperative echocardiogram prior to adenotonsillectomy for children with severe obstructive sleep apnea?

PURPOSE: To investigate threshold values for obstructive apnea-hypopnea index (OAHI) and nadir oxygen saturation (NspO2) in children with severe obstructive sleep apnea (OSA) to identify children most appropriate for preoperative echocardiography. METHODS: A multi-institutional retrospective chart review was performed on children who underwent echocardiography and polysomnogram within a year. Children with severe OSA as defined by OAHI > 10 or NspO2 < 80% were included. Receiver operator curves and Youden's J index were used to assess the discriminatory ability and threshold values of OAHI and NspO2 for right heart strain (RHS) on echocardiography. RESULTS: A total of 173 prepubertal (< 10 years) children and 71 postpubertal (≥ 10 years) children of age were included. RHS was seen in 9 (5%) prepubertal children and 4 (6%) postpubertal children. In prepubertal children, OAHI and NspO2 were poor predictors of RHS (area under the curve [AUC] 0.53 [95%CI 0.45-0.61], p = 0.748; AUC 0.56 [95%CI 0.48-0.64], p = 0.609). In postpubertal children, threshold values of 55 events/hour and 69% were strong predictors for RHS (AUC 0.88 [95%CI 0.78-0.95], p < 0.001; AUC 0.92 [95%CI 0.83-0.97], p < 0.001). CONCLUSION: In children with severe OSA, evidence of RHS is low. Postpubertal children with OAHI > 55 and NspO2 < 69% appear most appropriate for echocardiography. Clinicians should weigh the risks and benefits of preoperative echocardiography for each child with these threshold values in mind.

Cost comparison between surgical and conservative management for pediatric sinogenic subperiosteal abscesses.

BACKGROUND: There remains variation in management of orbital complications of acute bacterial rhinosinusitis (ABRS); specifically, those subperiosteal abscesses that present without immediate surgical indication. Recent systematic reviews on management and proposed treatment algorithms are helpful but do not consider the financial implications for healthcare systems and patients. METHODS: A retrospective chart review of pediatric patients from a tertiary care children's hospital between 2002 and 2020 was performed, identifying patients via ICD coding corresponding to acute bacterial sinusitis and orbital involvement classified as Chandler 3 confirmed by contrasted computed tomography (CT). Two groups of patients were identified: intravenous (IV) antibiotics alone and IV antibiotics plus surgery. Billing records of total hospital charges and physician fees were recorded for financial analysis. Demographic, length of stay, and charges were analyzed. RESULTS: 58 patients with ABRS and Chandler 3 orbital involvement were confirmed by CT imaging. Twenty-nine (50%) were treated with IV antibiotics alone, and twenty-nine (50%) underwent surgery in addition to IV antibiotics. There were no significant differences in patient demographics. The average total hospital charges for the medically managed group were $9262 ± 4831 compared to $30,830 ± 11,397 for the surgical group (p < 0.0001). In the medically managed group, the average hospital fees were $7305 ± 4048 and the average physician fees were $1543 ± 799. In the surgical group, the average hospital and physician fees were also significantly higher at $23,071 ± 7305 (p < 0.0001) and $7763 ± 3335 (p < 0.0001), respectively. Patients who were treated medically and had a longer than average LOS still had significantly fewer charges than those treated with antibiotics plus surgery and a shorter than average length of stay [$15,311 and $27,723, respectively (p = 0.02)]. CONCLUSION: Pediatric ABRS with orbital involvement requires prompt attention and management. Controversy persists over subperiosteal abscess management that present without overt surgical indications. Surgical intervention is expensive. Our subgroup analysis demonstrates the magnitude of this cost difference. Specifically, longer inpatient stays with IV antibiotics alone appear to be significantly cheaper than shorter ones that include surgery. Not all Chandler 3 patients are candidates for non-surgical management; however, clinicians are encouraged to keep these data in mind for those patients where further medical management is safe and may yield less expensive clinical resolution.

Efficacy of melatonin for auditory brainstem response testing in children: A systematic review.

OBJECTIVE: To examine the literature on pre-treatment with melatonin for successful completion of Auditory Brainstem Response (ABR) testing in pediatric patients and evaluate melatonin dosing protocols. DATA SOURCES: The Cochrane Library, PubMed, Ovid MEDLINE, and Web of Science from inception through May 20th, 2019. In addition, a retrospective case series of pediatric patients (<18yr) who underwent melatonin assisted ABR testing between 2015 and 2018 was performed at our institution. REVIEW METHODS: Prospective and retrospective studies involving melatonin use in pediatric patients (<18yrs) for auditory brainstem response testing were evaluated. Studies meeting inclusion/exclusion criteria reported success rate of ABR testing using melatonin pre-treatment, dosage of melatonin used, duration of sleep, and whether adverse events occurred. RESULTS: 43 studies were identified, 8 studies were selected, and finally 5 studies were included in the review. A total of 480 pediatric patients underwent ABR testing with pre-treatment of melatonin with success rates ranging from 65% to 86.7%. Age across studies ranged from 1 month to 14 years, 6 months. Dosage of melatonin varied from 0.25 mg for patients <3 months of age to 20 mg for patients >6 years of age, with one study using a weight-based approach. No significant adverse events were reported by any of the included studies. CONCLUSION: Pre-medication with melatonin may be a useful option for obtaining successful results of non-sedated ABR testing in pediatric patients and may provide a useful alternative to sedation. Dosing patterns are highly variable. No adverse events were reported with any dosing strategy.

Defining the biomechanical properties of the rabbit trachea.

OBJECTIVES/HYPOTHESIS: Surgical advancements rely heavily on validated animal models. The New Zealand White (NZW) rabbit is a widely used model for airway research, including regenerative medicine applications. Currently, the biomechanical properties of the normal rabbit trachea are not known. Our objective was to define these properties to assist in the standardization and understanding of future airway research using this model. STUDY DESIGN: Laboratory-based study. METHODS: Fresh tracheas from four adult NZW rabbits were dissected into 20 segments. To examine the biomechanical properties, segments were subjected to uniaxial tension (n = 9) and compression (n = 11) testing. Yield and maximum load (tension) and force at 50% displacement (compression) were recorded, and differences between segments were examined using analysis of covariance. RESULTS: Normative data for native rabbit trachea show mean maximum load = 6.44 newtons (N), yield load = 5.93 N, and compressive strength = 2.10 N. In addition to establishing the baseline measurements, statistically significant differences in tensile measures based on location along the trachea and diameter were identified. Proximal segments had significantly higher maximum load (P = .0029) and yield load (P = .0062) than distal segments. Association between diameter and both maximum load (P = .0139) and yield load (P = .0082) was observed. CONCLUSIONS: The adult NZW rabbit trachea is intrinsically less able to withstand tensile and compressive forces, compared to other airway models such as sheep or cadaveric human. Establishment of normative values will enable future research into changes in tracheal biomechanical properties during regenerative medicine manipulation and processing.

New technology applications: Knotless barbed suture for tracheal resection anastomosis.

OBJECTIVES/HYPOTHESIS: Tracheal resection anastomoses are often under tension and can be technically challenging. New suture materials such as V-loc (barbed, knotless wound closure device) may offer advantages over conventional methods. The objective of this study is to determine if a running V-loc suture is of comparable tensile strength to conventional closure. STUDY DESIGN: Laboratory based study of human cadaveric tissue. METHODS: Fresh human cadaveric tracheas were dissected and incised into segments. Anastomosis of adjacent segments was then performed with either submucosal interrupted 3-0 Vicryl, or a running submucosal 3-0 V-loc suture. Anastomosed specimens were stretched to failure on an Instron force tension machine. Surgeon satisfaction was recorded by visual analog scale (VAS). RESULTS: The tensile strength of 12 tracheal anastomoses was tested. Video documentation of V-loc suture technique and anastomosis failure was recorded. In both Vicryl (80%) and V-loc (100%) anastomoses, failure occurred at the membranous intercartilaginous region. In 20% of the Vicryl anastomoses, the suture was noted to break prior to tissue failure. Anastomoses with V-loc suture had equivalent failure force (mean, 59 N) compared to interrupted Vicryl (51 N), with P = .57. On VAS, surgeons were more satisfied with V-loc suture closure compared to interrupted Vicryl closure (paired t test, P = .003). CONCLUSIONS: Tracheal anastomosis with running v-loc suture is a feasible alternative to conventional closure with interrupted Vicryl suture. V-loc suture provided a surgical advantage by improved ease of use.

Proteomics blood testing to distinguish chronic rhinosinusitis subtypes.

OBJECTIVES: To evaluate the potential of surface enhanced laser desorption/ionization time-of-flight mass spectrometry (SELDI-TOF-MS) proteomic profiling of serum samples to distinguish chronic rhinosinusitis subtypes. STUDY DESIGN: Translational study of serum samples from prospectively enrolled patients undergoing sinus surgery. METHODS: Patients undergoing endoscopic sinus surgery for chronic rhinosinusitis with nasal polyposis were prospectively enrolled in an ongoing, institutional review board approved proteomics study. SELDI-TOF-MS was performed on 42 serum samples in patients with chronic rhinosinusitis with nasal polyposis (15 patients diagnosed with allergic fungal rhinosinusitis, 10 patients with Samter's triad, and 17 with chronic rhinosinusitis with nasal polyposis). Classification tree analysis on protein spectra developed from peaks detected in the 0 to 100 kD range was performed to identify disease subtypes. RESULTS: SELDI-TOF-MS correctly identified patients with allergic fungal rhinosinusitis from serum samples with 84% sensitivity and 90% specificity, and correctly identified patients with Samter's triad with 88% sensitivity and 88% specificity in two subtype comparison groups. SELDI-TOF-MS correctly identified patients with allergic fungal rhinosinusitis with 76% sensitivity and 82% specificity, and correctly identified patients with Samter's triad with 80% sensitivity and 90% specificity in three subtype comparison groups. CONCLUSION: The study provides molecular evidence that allergic fungal rhinosinusitis is a discrete subtype of chronic rhinosinusitis. SELDI-TOF-MS is a promising technology that could lead to the development of a rapid blood test, to identify severe chronic rhinosinusitis subtypes. Further investigation into the utility of this technology is warranted.