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AIM: To mathematically present the results of endoscopic assisted surgery in the treatment of metopic synostosis. MATERIAL AND METHODS: We present a follow-up of the stages of treatment of 43 patients with metopic synostosis who underwent surgery in a multicenter retrospective study between 2018 and 2021. We developed the formula D3/((D1+D2)/2) based on the theory of "The Angle of a Triangle Opposite The Longest Side is the Largest Angle". And we called this method "Metopic Angle Proportion (MAP)". Paired samples T-test was performed for statistical results. A p-value of < 0.05 was considered statistically significant. RESULTS: According to the MAP method; measurements for frontal enlargement, mean pretreatment length D1: 34,57 mm, D2: 34,81 mm, D3: 60,46 mm, and the end of treatment as D1: 37,88 mm, D2: 38,19 mm, D3: 71,09 mm. We perfomed the formula D3/ [(D1+D2)/2]. While this rate was 1.74 before treatment, it increased to 1.87 after treatment. As a result of statistical analysis, it was also found to be significant (p≤0.05). CONCLUSION: Endoscopy-assisted suturectomy can be applied in health centres where available, because it is safe, easy and cheaper.

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OBJECTIVE: To assess whether adding metoclopramide to a protocol of maropitant and pantoprazole would reduce incidence of ptyalism, vomiting and regurgitation in brachycephalic dogs undergoing thoracolumbar spinal surgery. STUDY DESIGN: Randomized blinded controlled trial. ANIMALS: A total of 43 brachycephalic dogs undergoing thoracolumbar spinal surgery. METHODS: In addition to a standardized anaesthetic regimen, dogs were randomized to be administered either a 2 mg kg-1 day-1 metoclopramide constant rate infusion (CRI) or a saline solution at an equivalent infusion rate, started after anaesthetic induction and discontinued 5 hours after tracheal extubation. The presence of vomiting, regurgitation and pytalism, and short form of the Glasgow Composite Pain Scale pain scores were assessed by a blinded observer hourly for 4 hours, starting 1 hour postextubation. RESULTS: Regurgitation occurred in six dogs postoperatively; three dogs were in the placebo group and three in the metoclopramide group. The odds ratio (OR) of regurgitation after surgery did not differ between groups [OR: 0.76, 95% confidence interval (CI): 0.13-4.3, p = 0.76]. The odds of observing ptyalism at 3 and 4 hours was approximately 15 times less than 1 hour postoperatively (both OR: 15.4, 95% CI: 1.8-130.7, p = 0.012) and did not differ based on the addition of metoclopramide (OR: 0.73, 95% CI: 0.07-8.0, p = 0.79). The odds of observing pain did not change over time and did not differ based on the addition of metoclopramide (OR: 0.71, 95% CI: 0.12-4.2, p = 0.71). Vomiting did not occur during the study (0.0%, 95% CI: 0.0-8.2%). No adverse effects were observed during the study period in either group. CONCLUSIONS AND CLINICAL RELEVANCE: The addition of a metoclopramide CRI to maropitant and pantoprazole did not result in a significant reduction in ptyalism or regurgitation in brachycephalic dogs undergoing thoracolumbar spinal surgery.

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BACKGROUND: Highly traumatic surgical correction of craniosynostosis (CS) is usually followed by severe postoperative period and high risk of complications. Surgical stress response (SSR) is an important and often neglected cause of severe early postoperative period. OBJECTIVE: To compare clinical and laboratory parameters of SSR in children who underwent various surgeries for CS. MATERIAL AND METHODS: The study included 63 patients aged 7.02±4.12 months. All ones underwent surgery for CS between October 2021 and June 2022. We analyzed clinical and laboratory markers of SSR, as well as correlation with severity of surgical stress. RESULTS: No surgical complications were observed. There were postoperative complications in 12 (19.0%) cases including febrile fever in 9 (14.3%) patients, severe pain and edematous syndromes with prolonged hospital-stay in 3 (4.8%) cases. Significant correlations were revealed between severity of surgical stress and certain laboratory markers (CRP, ACTH, T3, insulin, HOMA-IR). The last ones characterized SSR severity. Patients with high scores of stress response demonstrated more severe course of early postoperative period. CONCLUSION: Surgical stress scale makes it possible to predict early postoperative period and optimize patient management. Lower severity of surgical stress response following endoscopic interventions is another reason for the wider use of low-traumatic surgical methods in pediatric neurosurgery.

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An esophageal bronchus is a subtype of congenital bronchopulmonary foregut malformations in which a lobar bronchus arises directly from the esophagus, creating a communication between the esophagus and lung tissue. Early diagnosis is crucial to prevent worsening pulmonary sequelae but is challenging due to the rarity of the anomaly and nonspecific respiratory symptoms. We present a child whose esophageal bronchus was identified incidentally during preanesthetic assessment for craniosynostosis repair and discuss the role an anesthesiologist can play in identifying and managing this diagnosis.

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BACKGROUND: Flat head syndrome (FHS) sometimes occurs when a baby maintains the same head position during the first several months of life, causing a skull deformity. FHS usually improves with time and natural growth, although some show aggravation against conservative treatment. We reviewed pathologically proved early closure of skull suture that may be seen secondary to FHS. METHODS: The clinical and radiologic findings of the patients who showed progressive skull deformity resembling FHS were retrospectively reviewed. All the patients underwent surgical treatment and pathologic specimens were obtained. RESULTS: The detected patients included two 5-month-old infants and one 1-year-old child. The former were conservatively treated without any obvious premature suture closure on computed tomography (CT), and later developed progressive tower-like skull deformities. The infants were diagnosed with possible premature fusion of lambda site and underwent removal around lambda depression (LD). The latter showed evident sagittal suture closure on CT with digital markings, and was diagnosed with increased intracranial pressure and underwent cranioplasty of posterior expansion. Histopathologic specimens obtained from the patients' resected sutures showed irregularly narrowed suture structure with ossification and fibrous tissue proliferation within them, supporting the diagnosis of premature closure of the sagittal sutures. Their postoperative courses were uneventful, and their skull deformities subsequently improved. CONCLUSIONS: Conservative therapy-resistant progressive occipital skull deformity with LD may be a sign of early suture closure, even if CT does not show obvious suture closure. The findings are helpful for early diagnosis and might lead to minimal invasive surgery if needed.

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PURPOSE: This study aims to evaluate the effectiveness of the Piezosurgery® device in endoscopic-assisted correction of trigonocephaly. Trigonocephaly is a type of craniosynostosis characterized by a triangular-shaped forehead due to the premature fusion of the metopic suture. Traditional open cranial vault reconstruction, although common, is invasive and poses risks. The study explores a less invasive alternative using ultrasonic microvibrations for bone cutting, potentially reducing soft tissue damage and improving surgical outcomes. METHODS: The Piezosurgery® device was employed in endoscopic trigonocephaly correction surgeries performed on patients under 4 months old at the French Referral Center for Craniosynostosis in Lyon. The technique involves making a small skin incision and performing osteotomies from the anterior fontanel to the glabella. A rigid 0° endoscope provides visibility, and the Piezosurgery® device enables precise bone cutting while preserving the dura mater. Post-surgery, patients were discharged within 3 days and required to wear a remodeling helmet for 6-8 months. RESULTS: The use of Piezosurgery® device allowed precise osteotomies with minimal soft tissue damage. No dura mater injuries occurred in the patient series. The procedure was efficient, with an average duration of 80 min, and blood loss was minimal, reducing the need for blood transfusions. The endoscopic approach facilitated shorter surgical times and reduced postoperative infection risks. Enhanced visibility during surgery, due to cavitation effects, improved the accuracy of bone cuts. The technique demonstrated promising safety and esthetic outcomes, although it incurred higher costs compared to traditional methods. CONCLUSION: Piezosurgery® device provides a safe and effective method for minimally invasive endoscopic correction of trigonocephaly. The device's ability to selectively cut bone while preserving soft tissues offers significant advantages, despite longer surgical times and higher costs. This technique represents a viable alternative to traditional open surgery, promoting better clinical outcomes and reduced recovery times.

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PURPOSE: Strabismus in patients with craniosynostosis is common, but surgical correction of strabismus in these patients remains challenging. We report our findings in six patients (four of whom were Korean) with craniosynostosis who underwent strabismus surgery to specifically address V-pattern horizontal strabismus with moderate-to-severe inferior oblique (IO) overaction, using IO myectomy at a single tertiary hospital between 2005 and 2016. METHODS: We recorded preoperative characteristics including sex, age, type of strabismus, versions grading, refractive error, and visual acuity. The grading of cyclorotation of horizontal rectus muscles by V-pattern categorized using coronal computed tomography imaging. RESULTS: Of the six patients, exodeviation was found in four patients and vertical deviation in two patients in primary position. One patient had both horizontal and vertical strabismus. Available computed tomography imaging showed that V-patterns were category 1 (mild) in two patients, category 2 (moderate) in one patient, and category 3 (severe) in two patients. Complete success was defined as absence of IO overaction any more. Overall complete success rate of IO myectomy was 83.3%. CONCLUSIONS: IO myectomy appeared to have some benefits in V-pattern horizontal strabismus with moderate-to-severe IO overaction in patients with craniosynostosis.

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The elongated soft palate is an abnormality that characterizes most brachycephalic dogs and contributes to the brachycephalic obstructive airway syndrome (BOAS). Palatoplasty is routinely performed in brachycephalic dogs; several surgical techniques exist. The use of surgical instruments such as monopolar electrocoagulation, CO2 or diode laser, bipolar vessel sealing device and harmonic shears has become routine to reduce the operating time, the intraoperative risk of bleeding and the postoperative oedema. This prospective study aimed to compare the histomorphological effect of a CO2 laser and LigaSure device in palates of dogs undergoing palatoplasty. Twenty owned brachycephalic dogs were included, 10 palatoplasties were performed using CO2 laser and 10 using LigaSure™ device. The dogs were positioned in sternal recumbency. A transoral approach was performed: the elongated soft palate was grasped with Allis forceps and brought rostrally, the palatoplasty was performed using the tonsillar crypts as anatomical landmarks. Surgical specimens were routinely fixed in 10 % formalin. Two sections perpendicular to the surgical margins were trimmed from each sample, paraffin-embedded and stained with hematoxylin and eosin (H&E). Tissue damage induced by the two types of surgical devices was graded (1-4, from minimal to severe) and the depth of thermal injury measured in µm on captured images (using an image analysis program - ImageJ). Mean values and standard deviations (SD) were calculated based on six measurements for each sample. The tissue damage was graded 3.7±0.48 in group LigaSure™ and 2.8±1 in group Laser. The mean depth of thermal injury was 874.94±184.92 µm in the LigaSure™ group and 451,76±137,86 µm in the Laser group. The comparison between the two groups showed significant lower grade and extension of thermal injury in the palate samples obtained with CO2 laser (p<0.05). Additionally, there is a lack of literature that correlates the histological changes with the clinical outcomes of the different palatoplasty methods in brachycephalic dogs. By comparing histological changes and clinical outcomes, we aim to provide valuable insights for optimizing the surgical approach for palatoplasty in brachycephalic dogs, ultimately improving postoperative outcomes for these patients.

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BACKGROUND: Sagittal synostosis is the most common type of premature suture closure, and many surgical techniques are used to correct scaphocephalic skull shape. Given the rarity of direct comparisons of different surgical techniques for correcting craniosynostosis, this study compared outcomes of craniotomy combined with springs and H-craniectomy for nonsyndromic sagittal synostosis. METHODS: Comparisons were performed using available preoperative and postoperative imaging and follow-up data from the 2 craniofacial national referral centers in Sweden, which perform 2 different surgical techniques: craniotomy combined with springs and H-craniectomy (the Renier technique). The study included 23 pairs of patients matched for sex, preoperative cephalic index, and age. Cephalic index, total intracranial volume (ICV), and partial ICV were measured before surgery and at 3 years of age, with volume measurements compared against those of preoperative and postoperative controls. Perioperative data included operation time, blood loss, volume of transfused blood, and length of hospital stay. RESULTS: Craniotomy combined with springs resulted in less bleeding and lower transfusion rates than H-craniectomy. Although the spring technique requires 2 operations, the mean total operation time was similar for the methods. Of the 3 complications that occurred in the group treated with springs, 2 were spring-related. The compiled analysis of changes in cephalic index and partial volume distribution revealed that craniotomy combined with springs resulted in superior morphologic correction. CONCLUSION: The findings showed that craniotomy combined with springs normalized cranial morphology to a greater extent than H-craniectomy based on changes in cephalic index and total and partial ICVs over time. CLINICAL QUESTION/LEVEL OF EVIDENCE: Therapeutic, III.

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Geospatial and socioeconomic health disparities are potential barriers to timely diagnosis and treatment of nonsyndromic craniosynostosis. This systematic review aims to assess published literature describing disparities in craniosynostosis care and to summarize the findings surrounding patient proximity to care centers and familial socioeconomic status as predictors of surgical management and outcomes. The data sources used include PubMed, MEDLINE, and Google Scholar. The Strengthening the Reporting of Observational Studies in Epidemiology checklist was used for appraisal of the quality of the studies included. Generally, the literature reviewed suggested that socioeconomic variables including race, insurance payor, and median zip code income quartile are predictors of suboptimal craniosynostosis surgical management outcomes including older age at time of surgery and more invasive surgical approach performed. The only geospatial data element assessed was the general region of the hospital where the patient was treated. The review highlighted various knowledge gaps within published literature describing health-related disparities in patients with craniosynostosis. There is a paucity of research assessing geospatial access to craniosynostosis care centers, suggesting that further research should be performed to evaluate this potential disparity. In addition, previous studies lack granularity when assessing socioeconomic factors and only one study accounted for suture fused, which is a potential confounding variable across the other published work. These considerations should be addressed in future studies addressing this topic. The limitations of this review include potential publication bias given that unpublished work was not included. An element of reviewer bias also exists considering only one reviewer screened the articles and extracted the data.

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The aim of this study was to compare a traditional fronto-orbital remodeling and advancement (FORA) with the dynamic cranioplasty for trigonocephaly (DCT). The authors analyzed patients who underwent surgery for trigonocephaly. Perioperative data were compared. Parents were asked to use a visual analog scale to evaluate the pre- and postoperative distance between the eyes, the forehead shape, and the global appearance of the face. A panel of observers was asked to grade pre- and postoperative photographs using a similar visual analog scale. Pre- and postoperative anthropometric data were collected and analyzed in a subset of the study population aged 9 years or older. The total sample size was 51 patients (DCT n = 39; FORA n = 12). Durations of surgery and anesthesia were shorter in the DCT group (115 vs 194 min, p = 0.001; 226 vs 289 min, p = 0.001). Patients in the DCT group received similar preoperative ratings to those in the FORA group, but significantly higher postoperative ratings by parents for all three questions. There were no significant differences in postoperative ratings by the panel or postoperative anthropometric data. DCT is safe and effective. It is preferred over FORA because it is associated with shorter durations of surgery and anesthesia, while providing higher degrees of parental satisfaction and similar aesthetic and anthropometric outcomes.

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PURPOSE: Sagittal synostosis is the most common isolated craniosynostosis. Surgical treatment of this synostosis has been extensively described in the global literature, with promising outcomes when it is performed in the first 12 months of life. However, in some cases, patients older than 12 months arrive at the craniofacial center with this synostosis. A comprehensive study on efficacy and perioperative outcomes has yet to be fully explored in this population. This systematic review and meta-analysis aimed to assess the available evidence of surgical outcomes for the treatment of sagittal synostosis among older patients to analyze the efficacy and safety of synostosis surgery in this unique population. METHODS: PubMed, Embase, and Scopus were searched for studies published from inception to March 2024 reporting surgical outcomes of synostosis surgery in older patients (> 12 months) with isolated sagittal synostosis. The main outcome was the reoperation rate, with secondary endpoints including transfusion rates, aesthetic outcomes, and surgical complications. RESULTS: Nine studies were included in the final analysis. The pooled proportion of the reoperation rate was 1%. The rate of excellent aesthetic results was 95%. The need for transfusion associated with the procedures was 86%, and finally, surgical complications attained a pooled ratio of 2%, indicating minimal morbidity associated with the surgical repair. CONCLUSION: Sagittal synostosis surgery is a safe and effective procedure to perform in older patients; this meta-analysis suggests that open surgery confers a significant rate of excellent aesthetic results with a low reoperation rate and minimal complications associated with the intervention. Future research with direct comparisons among different techniques will validate the findings of this study, which will all contribute to the rigor of synostosis management.

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PURPOSE OF REVIEW: The use of piezoelectric instrumentation is increasingly recognized as an alternative to traditional bone-cutting techniques across a wide array of surgeries. Here, we provide an overview of the technique, including device principles, benefits, and drawbacks. We also review its use in craniofacial surgery. RECENT FINDINGS: Piezoelectric surgery is a minimally invasive bone-cutting system with lower risk of damage to surrounding soft tissue structures. Indications for its use are rapidly expanding across multiple fields, including craniofacial surgery. To date, piezosurgical techniques have been most widely adopted and studied in the contexts of rhinoplasty, orthognathic surgery, and cranioplasty in craniosynostosis. Piezosurgery can facilitate more precise and consistent osteotomies while decreasing morbidities associated with traditional osteotomy techniques. Primary limitations include cost and concerns regarding increased operative times secondary to operator learning curves and decreased cutting efficiency. SUMMARY: Piezoelectric surgery represents an alternative to traditional bone-cutting modalities to improve precision, consistency, and safety of osteotomies. Further research is needed to better understand the efficacy of the technique as well as potential for additional applications.

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OBJECTIVE: Previous work identified an association between genetics and neurodevelopmental delays in patients with nonsyndromic craniosynostosis. The authors investigated the role of genetic mutations on behavioral outcomes of patients with treated sagittal synostosis. METHODS: Parents of children aged 6-18 years with surgically corrected sagittal synostosis were recruited to complete the Child Behavioral Checklist (overall behavioral problems), Conners 3rd Edition-Parent (attention-deficit/hyperactivity disorder), Social Responsiveness Scale 2nd Edition (autism spectrum disorder [ASD]), and Behavior Rating Inventory of Executive Function 2nd Edition (executive function). Genomic analysis was completed, and patients were identified if they had mutations in high probability of loss of function intolerant (pLI) genes (high pLI vs nonhigh pLI). Genetic burden was assessed relative to controls. Multivariate linear regression determined the association of mutations in high pLI genes with behavioral scores, while controlling for sociodemographic factors, age at surgery, surgery type, and IQ. RESULTS: Sixteen of 45 patients were in the high pLI group. There were no differences between the groups in terms of sociodemographic factors. A greater proportion of children in the high pLI group scored at or above borderline clinical levels for aggression (18.8% vs 0.0%, p = 0.05) and externalizing problems (31.3% vs 3.7%, p = 0.02). Among children in the nonhigh pLI group, older age at surgery was associated with worse scores on the rule-breaking, aggression, and externalizing problems domains and four out of five ASD domains. CONCLUSIONS: Children with treated nonsyndromic sagittal synostosis and mutations in high pLI genes had worse behavioral problems in externalizing behaviors and aggression, whereas older age at surgery was a significant predictor of worse behavioral outcomes in patients without mutations in high pLI genes.

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ABSTRACT: Accessing treatment at ACPA (American Cleft Palate-Craniofacial Association)-approved centers is challenging for individuals in rural communities. This study aims to assess how pediatric plastic surgery outreach clinics impact access for patients with orofacial cleft and craniosynostosis in Mississippi. An isochrone map was used to determine mean travel times from Mississippi counties to the sole pediatric hospital and the only ACPA-approved team in the state. This analysis was done before and after the establishment of two outreach clinics to assess differences in travel times and cost of travel to specialized plastic surgery care. Two sample t-tests were used for analysis.The addition of outreach clinics in North and South Mississippi led to a significant reduction in mean travel times for patients with cleft and craniofacial diagnoses across the state's counties (1.81 hours vs 1.46 hours, P < 0.001). Noteworthy travel cost savings were observed after the introduction of outreach clinics when considering both the pandemic gas prices ($15.27 vs $9.80, P < 0.001) and post-pandemic prices ($36.52 vs $23.43, P < 0.001).The addition of outreach clinics in Mississippi has expanded access to specialized healthcare for patients with cleft and craniofacial differences resulting in reduced travel time and cost savings for these patients. Establishing specialty outreach clinics in other rural states across the United States may contribute significantly to reducing burden of care for patients with clefts and craniofacial differences. Future studies can further investigate whether the inclusion of outreach clinics improves follow-up rates and surgical outcomes for these patients.

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OBJECTIVE: Shunt-related craniosynostosis (SRC) is the premature fusion of cranial sutures possibly due to a loss of tension across dura and suture lines after placement of a shunt for hydrocephalus. As modifications in approaches toward shunting represent a modifiable risk factor, prior literature has investigated the determinants and outcomes. However, the data remain highly variable and are limited by single-institution studies. METHODS: A systematic search of PubMed, Embase, and Web of Science from inception to February 2022 was conducted. Studies were screened by 2 reviewers for eligibility based on predefined inclusion/exclusion criteria. RESULTS: In the 9 included articles, the average follow-up time for the entire cohort ranged from 1.5 to 4.2 years. The pooled incidence of SRC across all 9 studies was 6.5% (140/2142), with an individual range of 0.53% (1/188) to 48.8% (61/125). The average time from shunt placement to SRC diagnosis ranged from 0.25 years to 4.6 years. 61% (65/110) of cases included only one suture, 88% (25/28) of these involved the sagittal suture, and those cases with multiple fusions also had 98% involvement of the sagittal suture (45/46). Overall, 94% (1783/1888) of patients had a fixed shunt placed. CONCLUSIONS: Shunt-related craniosynostosis is likely an underreported complication in the treatment of hydrocephalus. Older age at shunt placement, increased number of shunt revision procedures, and lower valve pressure settings may be risk factors for SRC development. Results also indicate that craniosynostosis can develop months to years after shunting. Future quality studies with standardization of data reporting processes are warranted to investigate this clinical problem.

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