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A comunicação buco-sinusal, uma conexão direta entre boca e seios maxilares, ocorre comumente pela extração de dentes próximos ao seio maxilar e outros procedimentos. O diagnóstico precoce é crucial para prevenir complicações graves. A abordagem terapêutica varia conforme o tamanho do defeito, presença de infecção e localização específica. Realizou-se uma breve revisão de literatura qualitativa abordando as principais complicações da comunicação buco sinusal na cirurgia bucal e como intervi-las. Buscou-se artigos científicos indexados nas seguintes bases de dados: Google Scholar, Pubmed e Biblioteca Scielo com lapso temporal de 2013 a 2023. Foram utilizados para esta busca os seguintes descritores: Comunicação buco-sinusal; Complicações; Seio maxilar. Os critérios de inclusão desta pesquisa foram artigos em inglês, português e espanhol, sendo selecionados 26 trabalhos. Os principais critérios de exclusão foram artigos com mais de 10 anos de publicação. A prevenção e gestão eficaz das complicações na comunicação oral em cirurgias são essenciais. Identificar fatores de risco, usar técnicas cirúrgicas precisas e agir imediatamente diante de sinais de comunicação com os seios da face são medidas cruciais para garantir a segurança do paciente e aprimorar os resultados cirúrgicos.

Oral-sinusal communication, a direct connection between the mouth and maxillary sinuses, commonly occurs due to the extraction of teeth close to the maxillary sinus and other procedures. Early diagnosis is crucial to prevent serious complications. The therapeutic approach varies according to the size of the defect, presence of infection and specific location. A brief qualitative literature review was carried out looking at the main complications of oral sinus communication in oral surgery and how to intervene. We searched for scientific articles indexed in the following databases: Google Scholar, Pubmed and Scielo Library with a time span from 2013 to 2023. The following descriptors were used for this search: Oral-sinus communication; Complications; Maxillary sinus. The inclusion criteria for this study were articles in English, Portuguese and Spanish, and 26 papers were selected. The main exclusion criteria were articles published more than 10 years ago. The prevention and effective management of oral communication complications during surgery are essential. Identifying risk factors, using precise surgical techniques and acting immediately in the event of signs of communication with the sinuses are crucial measures to ensure patient safety and improve surgical outcomes.

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A comunicação bucossinusal (CBS) é uma complicação relativamente frequente na prática odontológica que ocorre em procedimentos cirúrgicos, principalmente, exodontias dos molares superiores. O diagnóstico dessa comunicação é feito através de exames clínicos intraorais, empregando a manobra de Valsava, e para a confirmação do diagnóstico, utiliza-se exame radiográfico. A literatura cita inúmeros métodos de tratamento, entretanto não evidenciam a técnica específica para cada caso, entre esses métodos existe o retalho com o corpo adiposo da bochecha, que apresenta alto índice de sucesso no fechamento das CBS. Quando a CBS é fechada incorretamente ou de forma tardia o paciente fica propício a desenvolver quadros de sinusite crônica ou aguda, além de fístulas bucossinusais. Portanto, deve-se identificar e tratar essa comunicação de imediato para evitar o desenvolvimento de outras complicações. O objetivo do presente trabalho é apresentar um caso clínico de um paciente com comunicação bucossinusal atendido na clínica odontológica da Unidade de Ensino Superior de Feira de Santana (UNEF), com a finalidade de demostrar a técnica cirúrgica utilizando a rotação do corpo adiposo da bochecha (Bola de Bichat).

The bucosinusal communication (BCS) is a relatively frequent complication in dental practice that occurs in surgical procedures, especially extractions of the upper molars. The diagnosis of this communication is made through intraoral clinical examinations, using the Valsava maneuver, and for the confirmation of the diagnosis, radiographic examination is used. The literature cites numerous methods of treatment, however they do not evidence the specific technique for each case, among these methods there is the graft with the adipose body of the cheek, which has a high success rate in the closure of the CBS. When the CBS is closed incorrectly or late, the patient is prone to develop chronic or acute sinusitis, in addition to bucosinusal fistulas. Therefore, this communication should be identified and treated immediately to prevent the development of other complications. The objective of the present study is to present a clinical case of a patient with bucosinusal communication attended at the dental clinic of Unidade de Ensino Superior de Feira de Santana (UNEF), with the purpose of demonstrating the surgical technique using the rotation of the adipose body of the cheek (Bichat ball).

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A maxillary sinus lift was performed without bone grafting in a 23-year-old female patient who required the placement of a dental implant in the edentulous area of tooth 16. The clinical and tomographic evaluation made it possible to plan and perform the maxillary sinus lift using the transcrestal approach and without the need for bone grafting. The residual ridge of 6mm allowed the placement of a simultaneous dental implant. After 6 months of tomographic follow-up, before prosthetic loading, a vertical bone height of 8.83 mm was achieved, resulting in a vertical bone gain of 2.83 mm. Additionally, an adequate integration of the dental implant was observed without postoperative complications. Transcrestal sinus lift without the use of bone graft is shown to be a viable, safe and effective technique for the simultaneous placement of dental implants in patients with bone atrophy in the maxillary area. This technique offers advantages such as reduced surgical time, less morbidity, lower cost and a faster healing process compared to conventional methods.

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PURPOSE: To critically appraise and summarize the potential of linear and/or volumetric dimensions of the maxillary sinuses obtained with cone-beam and multi-slice computed tomography. METHODS: A bibliographic search was conducted in seven databases in August 2023. Cross-sectional retrospective studies using linear and volumetric measurements of the maxillary sinuses obtained with cone-beam and multi-slice computed tomography for sex estimation and presenting numerical estimation data were included. Narrative or systematic reviews, letters to the editor, case reports, laboratory studies in animals, and experimental studies were excluded. The critical appraisal and certainty of evidence were assessed using the guidelines described by Fowkes and Fulton and GRADE, respectively. RESULTS: A total of 656 studies were found, 32 of which were included. A total of 3631 individuals were analyzed and the overall sex estimation rate ranged from 54.9 % to 95 %. When compared with isolated measurements, combined linear measurements of the right and left maxillary sinuses, such as width, length, and height, provided a higher rate of sex estimation (54.9-95 %). In most of the studies (62.5 %), all measurements were higher in men than in women. Multiple methodological problems were found in the studies, especially distorting influences in 84.4 % of the answers. The certainty of evidence varied from very low to low. CONCLUSIONS: The combination of height, width, and length measurements of the right and left maxillary sinuses from cone-beam and multi-slice computed tomography can be useful in the estimation of sex of humans. Further primary studies are needed to increase the certainty of evidence. PROSPERO REGISTER: CRD42020161922.

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OBJECTIVE: To evaluate the histomorphometric and computerized microtomographic (Micro-CT) analysis of the regenerated bone tissue from maxillary sinus augmentation surgery, with and without using the collagen membrane on the external osteotomy window. MATERIALS AND METHODS: Twelve patients were selected for this prospective, controlled, and randomized study. The patients were submitted to bilateral maxillary sinus surgery in a split-mouth design. On the test side, the maxillary sinus augmentation procedure included using Geistlich Bio-Oss® and a Geistlich Bio-Gide® collagen membrane covering the lateral osteotomy window. On the control side, only Geistlich Bio-Oss® was used without the presence of the membrane. After 6 months, the surgeries for implant installation were performed. In this surgical phase, specimens of the regenerated tissue were collected for histological and Micro-CT analysis. RESULTS: In the histomorphometric evaluation, the mean (±SD) percentages of newly formed bone were 43.9% (±11.5) and 40.8% (±8.9) in the test and control groups, respectively. The corresponding values of the Micro-CT analysis were 36.6% (±3.4) and 37.2% (±4.7) in the test and control groups, respectively. There was no statistically significant difference between the test and control groups in the two methods. In addition, there was no statistically significant difference between the mean percentage of biomaterial remaining between the test and control groups. However, the mean percentage of newly formed bone was significantly higher and the mean percentage of remaining biomaterial was significantly lower in the histomorphometric analysis compared to the values obtained through microtomography. CONCLUSION: The additional use of collagen membranes in maxillary sinus surgery does not offer advantages in newly formed bone.

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Introducción: Las fracturas del seno frontal, representando del 5% al 15% de las lesiones faciales traumáticas. La tomografía computarizada sin contraste es esencial para el diagnóstico. Clasificadas en cinco tipos según su trayectoria, la elección del tratamiento quirúrgico se basa en factores como ubicación, desplazamiento, integridad del tracto de salida del seno frontal y lesiones asociadas. Los objetivos de la intervención quirúrgica incluyen tratar fugas de líquido cefalorraquídeo, proteger estructuras intracraneales y prevenir complicaciones tardías como meningitis y osteomielitis frontal. Descripción del caso clínico: Paciente masculino de 26 años de edad, remitido al Hospital Vicente Corral Moscoso para valoración y manejo de trauma facial. A los 7 días de su ingreso bajo anestesia general balanceada se realizó el procedimiento quirúrgico que consistió en reducción más fijación con malla frontal más cinco tornillos de la fractura de la pared anterior del seno frontal derecho. Conclusiones: Se sugiere un enfoque multidisciplinario con neurocirujano y cirujano maxilofacial para tratar fracturas faciales superiores. El tratamiento actual considera la afectación de la tabla posterior, la permeabilidad del tracto de salida del seno frontal y el desplazamiento de la tabla anterior. Se prioriza el manejo temprano para proteger estructuras intracraneales, restaurar la función del seno frontal y prevenir complicaciones... (AU)

Introdução: Fraturas do seio frontal, representando 5% a 15% das lesões faciais traumáticas. A TC sem contraste é essencial para o diagnóstico. Classificada em cinco tipos de acordo com sua trajetória, a escolha do tratamento cirúrgico baseia-se em fatores como localização, deslocamento, integridade da via de saída do seio frontal e lesões associadas. Os objetivos da intervenção cirúrgica incluem o tratamento de fístulas liquóricas, proteção de estruturas intracranianas e prevenção de complicações tardias, como meningite e osteomielite frontal. Relato de caso clínico: Paciente do sexo masculino, 26 anos, encaminhado ao Hospital Vicente Corral Moscoso para avaliação e manejo de trauma facial. Sete dias após a internação, sob anestesia geral balanceada, foi realizado o procedimento cirúrgico que consistiu na redução mais fixação com tela frontal mais cinco parafusos da fratura da parede anterior do seio frontal direito. Conclusões: Sugere-se uma abordagem multidisciplinar com neurocirurgião e cirurgião maxilofacial para tratar fraturas faciais superiores. O tratamento atual considera o envolvimento da mesa posterior, a patência da via de saída do seio frontal e o deslocamento anterior da mesa. O manejo precoce é priorizado para proteger as estruturas intracranianas, restaurar a função do seio frontal e prevenir complicações... (AU)

Introduction: Fractures of the frontal sinus, representing 5% to 15% of traumatic facial injuries. Non-contrast CT is essential for diagnosis. Classified into five types according to their trajectory, the choice of surgical treatment is based on factors such as location, displacement, integrity of the frontal sinus outflow tract and associated injuries. The goals of surgical intervention include treating cerebrospinal fluid leaks, protecting intracranial structures, and preventing late complications such as meningitis and frontal osteomyelitis. Clinical case report: 26-year-old male patient, referred to the Vicente Corral Moscoso Hospital for evaluation and management of facial trauma. Seven days after admission, under balanced general anesthesia, the surgical procedure was performed, which consisted of reduction plus fixation with frontal mesh plus five screws of the fracture of the anterior wall of the right frontal sinus. Conclusions: A multidisciplinary approach with neurosurgeon and maxillofacial surgeon is suggested to treat upper facial fractures. Current treatment considers posterior table involvement, frontal sinus outflow tract patency, and anterior table displacement. Early management is prioritized to protect intracranial structures, restore frontal sinus function, and prevent complications... (AU)

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BACKGROUND: Sigmoid sinus wall dehiscence can lead to pulsatile tinnitus with a significant decrease in quality of life, occasionally leading to psychiatric disorders. Several surgical and endovascular procedures have been described for resolving dehiscence. Within endovascular procedures, the sagittal sinus approach could be a technical alternative for tracking and accurate stent positioning within the sigmoid sinus when the jugular bulb anatomy is unfavorable. CASE PRESENTATION: A retrospective case series of three patients with pulsatile tinnitus due to sigmoid sinus wall dehiscence without intracranial hypertension was reviewed from January 2018 to January 2022. From the participants enrolled, the median age was 50.3 years (range 43-63), with 67% self-identifying as female and 33% as male. They self-identified as Hispanic. Sigmoid sinus dehiscence was diagnosed using angiotomography, and contralateral transverse sinus stenosis was observed in all patients. Patients underwent surgery via a navigated endovascular sagittal sinus approach for sigmoid sinus stenting. No neurological complications were associated with the procedure. Pulsatile tinnitus improved after the procedure in all patients. CONCLUSIONS: Superior sagittal sinus resection for sigmoid sinus wall stenting is a safe and effective technique. Pulsatile tinnitus due to sigmoid sinus wall dehiscence could be treated using the endovascular resurfacing stenting technique. However, further research is needed to evaluate the potential benefit of contralateral stenting for removing sinus dehiscence when venous stenosis is detected. However, resurfacing sigmoid sinus wall dehiscence results in symptomatic improvement.

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The present short-term retrospective study evaluated the implant survival rate and peri-implant bone loss around additive-manufactured titanium implants placed in sinuses grafted with Plenum Osshp (Plenum Bioengenharia, Jundia, SP, Brazil) (70HA:30ß-TCP) material. A total of 39 implants were inserted after 23 sinus floor elevation procedures in 16 consecutive patients. Prosthetic rehabilitation included fixed partial prostheses (three units), single crowns (eleven units), and fixed full arches (three units). Clinical and radiographic parameters of implant-supported restorations were evaluated after at least one year of occlusal loading. The implant-crown success criteria included the absence of pain, suppuration, and clinical mobility, an average distance between the implant shoulder and the first visible bone contact (DIB) < 1.0 mm from the initial surgery, and the absence of prosthetic complications at the implant-abutment interface. The overall cumulative implant survival rate was 97.43%. No prosthetic complications at the implant-abutment interface were reported. After one year, the mean DIB was 0.23 mm ± 0.14. Within the limits of this retrospective study, it can be concluded that 70 HA:30 ß-TCP allowed stable and reliable bone support to maintain healthy conditions around titanium dental implants produced by additive manufacturing.

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Differentiating orofacial odontogenic pain/disorders from pain/disorders associated with maxillary sinusitis is important to avoid unnecessary dentalprocedures and to properly refer patients to colleagues/dentists and vice versa. AIM: To analyze the association between apical lesions and sinus changes and to evaluate the agreement between the diagnoses of an endodontist, a radiologist, an oral and maxillofacial surgeon, and an otolaryngologist. MATERIALS AND METHOD: 385 axial, coronal, and sagittal MSCT scans were selected using an image archiving andcommunication system (PACS). The examinations had been performed between 2018 and 2022. RESULTS: Apical lesions were observed in 36.10% of sinusitis cases, 73.8% of unilateralsinusitis cases, 48.7% of sinus floor discontinuity cases, and 67.2% of cases in which endodontic treatment had been performed. Agreement between the diagnoses made by the endodontist and those made by the other investigators was high for most study variables (k > 0.60). The exceptions were mucosal thickening, for which agreement between the endodontist and the other investigators was intermediate (k=0.397), and the presence of periapicallesions (k=0.010), previous endodontic treatment (k=0.013), and mucosal thickness (k=0.024), for which agreement between endodontists and radiologists was low. Conclusions: There was an association between sinus changes and apical lesions.

Diferenciar a dor/desordens odontogénicas orofaciais da dor/desordens as sociadas á sinusite maxilar é importante para evitar procedimentos odontológicos desnecessários e para encaminhar adequadamente os pacientes aos colegas/dentistas e vice-versa. OBJETIVO: Analisar a associagdo entre lesoes apicais e alteragóes sinusais e avaliar a concordáncia entre os diagnósticos de um endodontista, um radiologista, um cirurgido bucomaxilofacial e um otorrinolaringologista. MATERIAL E MÉTODO: foram avaliadas 385 imagens. RESULTADOS: Aslesoes apicais foram observadas em 36,10% dos casos de sinusite, em 73,8% dos casos de sinusite unilateral, em 48,7% dos casos de descontinuidade do assoalho do seio e em 67,2%odos casos em que o tratamento endodontico havia sido realizado. A concordancia entre os diagnósticos feitos pelo endodontista e os feitos pelos outros pesquisadores foi alta para a maioria das variáveis do estudo (k > 0,60). As excegoes foram o espessamento da mucosa, para o qual a concordáncia entre o endodontista e os outros pesquisadores foi intermediária (k=0,397) e a presenga delesoes periapicais (k=0,010), tratamento endodontico prévio (k=0,013) e espessura da mucosa (k=0,024), para os quais a concordáncia entre endodontistas e radiologistas foi baixa. CONCLUSÕES: Houve uma associagdo entre as alteragóes sinusais e aslesoes apicais.

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INTRODUCTION: Inappropriate sinus tachycardia (IST) is a common condition with frequently not tolerated beta-blockers or ivabradine and a high rate of complication in ablation strategy; we describe an alternative anatomical approach of sinus node (SN) modulation. METHODS: This retrospective study describes a case series of 6 patients from two centers diagnosed with symptomatic IST undergoing SN ablation. RESULTS: The mean age was 40.6 ± 13.9 years; five of the six patients were female, 100% of patients reported heart palpitations, and 66% reported dizziness, the average heart rate (HR) on a 24-h Holter was 93.2 ± 7.9 bpm. HR during the first stage of a stress test using a standard Bruce protocol was 150 ± 70 bpm, The average HR on 24-h Holter postablation was 75 ± 5.6 bpm, the sinus rate HR during stage 1 of a Bruce protocol exercise stress test was 120 ± 10 bpm. CONCLUSION: This is the first case series reporting the acute and long-term results of a novel anatomical approach for SN modulation to treat IST targeting the arcuate ridge (AR) under intracardiac echography (ICE) guidance. The novel anatomic ICE-guided catheter ablation approach aimed to identify the earliest activation at the AR with an extension of RF lesions toward its septal region seems effective and safe to modulate the SN in symptomatic patients with IST refractory to medical treatment.

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Laser surgery, a minimally invasive procedure for the definitive approach to pilonidal disease (PD), has been frequently studied in recent years. This study aims to describe a new pilonidotomy method using minimal laser energy and evaluate its initial results. This is a retrospective multicenter study. We included 47 consecutive patients who underwent 50 "minimal energy pilonidotomies (MELPi)" between 2019 and 2023 in four centers in Brazil. Age, BMI, gender, smoking, diabetes, Guner classification, duration of illness, energy, hospitalization time, complications, recurrence, wound closure, pain, and return to activities were analyzed. The median age was 27; 61.7% were men, and 38.3% were women. The median BMI was 25.7. Smoking was evident in 14.9%, and diabetes in 2.1%. The average duration of the disease was 3 years. Most operations (36%) were performed on stage R disease. The median hospitalization time was 6 h, and the median healing time was 15 days. The average energy used in procedures was 433 J. The median postoperative pain was 2. Secretion occurred in 14% on the 60th day. Complications (cellulitis) occurred in 4% of cases. The median time to return to work was 7 days. The average following time was 12 months; recurrence occurred in 5 (10%)-in 3 patients, a second MELPi procedure was performed and was effective. MELPi shows promising initial results: low pain, low complication rates, and a fast activity return. It is a good option in recidivate cases and can be done more than once if necessary.

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INTRODUCTION: Orthognathic surgery can lead to sinus alterations, including sinusitis, attributed to the exposure of maxillary sinuses during Le Fort I osteotomy. Furthermore, being a hospital-based procedure, there is potential risk of complications arising from bacteria prevalent in such environments. This study evaluated maxillary sinusitis occurrence and the presence of multidrug-resistant bacteria in the nasal cavity before and after orthognathic surgery. METHODS: Ten patients with dentofacial deformities underwent Le Fort I osteotomy. Clinical evaluations using SNOT-22 questionnaire were performed, and nasal cavity samples were collected pre-surgery and 3-6 months post-surgery to quantify total mesophilic bacteria and detect Staphylococcus aureus, Acinetobacter baumannii, and Klebsiella pneumoniae. Cone Beam Computed Tomography (CBCT) was performed pre- and post-operatively, and the results were evaluated using the Lund-Mackay system. This study was registered and approved by the Research Ethics Committee of PUCRS (No. 4.683.066). RESULTS: The evaluation of SNOT-22 revealed that five patients showed an improvement in symptoms, while two remained in the same range of interpretation. One patient developed post-operative maxillary sinusitis, which was not detected at the time of evaluation by SNOT-22 or CBCT. CBCT showed a worsening sinus condition in three patients, two of whom had a significant increase in total bacteria count in their nasal cavities. The Brodsky scale was used to assess hypertrophy in palatine tonsils, where 60% of the subjects had grade 1 tonsils, 20% had grade 2 and 20% had grade 3. None of the patients had grade 4 tonsils, which would indicate more than 75% obstruction. Two patients harboured S. aureus and K. pneumoniae in their nasal cavities. Notably, K. pneumoniae, which was multidrug-resistant, was present in the nasal cavity of patients even before surgery, but this did not result in maxillary sinusitis, likely due to the patients' young and healthy condition. CONCLUSION: There was an improvement in signs and symptoms of maxillary sinusitis and quality of life in most patients after orthognathic surgery. However, some patients may still harbour multidrug-resistant bacteria, even if they are asymptomatic. Therefore, a thorough pre-operative assessment is essential to avoid difficult-to-treat post-operative complications.

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Sex determination is essential for identifying unidentified individuals, particularly in forensic contexts. Traditional methods for sex determination involve manual measurements of skeletal features on CBCT scans. However, these manual measurements are labor-intensive, time-consuming, and error-prone. The purpose of this study was to automatically and accurately determine sex on a CBCT scan using a two-stage anatomy-guided attention network (SDetNet). SDetNet consisted of a 2D frontal sinus segmentation network (FSNet) and a 3D anatomy-guided attention network (SDNet). FSNet segmented frontal sinus regions in the CBCT images and extracted regions of interest (ROIs) near them. Then, the ROIs were fed into SDNet to predict sex accurately. To improve sex determination performance, we proposed multi-channel inputs (MSIs) and an anatomy-guided attention module (AGAM), which encouraged SDetNet to learn differences in the anatomical context of the frontal sinus between males and females. SDetNet showed superior sex determination performance in the area under the receiver operating characteristic curve, accuracy, Brier score, and specificity compared with the other 3D CNNs. Moreover, the results of ablation studies showed a notable improvement in sex determination with the embedding of both MSI and AGAM. Consequently, SDetNet demonstrated automatic and accurate sex determination by learning the anatomical context information of the frontal sinus on CBCT scans.

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Paragangliomas are the most common tumors at jugular foramen and pose a great surgical challenge. Careful clinical history and physical examination must be performed to adequately evaluate neurological deficits and its chronologic evolution, also to delineate an overview of the patient performance status. Complete imaging evaluation including MRI and CT scans should be performed, and angiography is a must to depict tumor blood supply and sigmoid sinus/internal jugular vein patency. Screening for multifocal paragangliomas is advisable, with a whole-body imaging. Laboratory investigation of endocrine function of the tumor is necessary, and adrenergic tumors may be associated with synchronous lesions. Preoperative prepare with alpha-blockage is advisable in norepinephrine/epinephrine-secreting tumors; however, it is not advisable in exclusively dopamine-secreting neoplasms. Best surgical candidates are young otherwise healthy patients with smaller lesions; however, treatment should be individualized each case. Variations of infratemporal fossa approach are employed depending on extensions of the mass. Regarding facial nerve management, we avoid to expose or reroute it if there is preoperative function preservation and prefer to work around facial canal in way of a fallopian bridge technique. If there is preoperative facial nerve compromise, the mastoid segment of the nerve is exposed, and it may be grafted if invaded or just decompressed. A key point is to preserve the anteromedial wall of internal jugular vein if there is preoperative preservation of lower cranial nerves. Careful multilayer closure is essential to avoid at most cerebrospinal fluid leakage. Residual tumors may be reoperated if growing and presenting mass effect or be candidate for adjuvant stereotactic radiosurgery.

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Introduction Jet aircraft pilots are exposed to huge pressure variation during flight, which affect physiological functions as systems, such as the respiratory system. Objectives The objective of the present investigation was to evaluate inflammatory changes of paranasal sinuses of jet aircraft pilots before and after a jet aircraft training program, using multislice computed tomography (CT), in comparison with a group of nonairborne individuals with the same age, sex, and physical health conditions. A second objective of the present study was to assess the association between the ostiomeatal complex obstruction and its anatomical variations. Methods The study group consisted of 15 jet aircraft pilots participating in the training program. The control group consisted of 41 nonairborne young adults. The 15 fighter pilots were evaluated before initiating the training program and after their final approval for the presence of inflammatory paranasal sinus disease. The ostiomeatal complex anatomical variations and obstructions were analyzed in pilots after the training program. Results Jet aircraft pilots presented higher incidence of mucosal thickening in maxillary sinus and anterior ethmoid cells than controls. Prominent ethmoidal bulla showed significant association with obstruction of the osteomeatal complex. Conclusions Jet aircraft pilots present increased inflammatory disease when compared with nonairborne individuals. The presence of a prominent ethmoidal bulla is associated with ostiomeatal complex obstruction.

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Purpose: Aiming to evaluate and study the epidemiological profile of frontal sinus fractures treated in the region of Ribeirão Preto-Brazil. Methods: Sixteen years of activity in the Oral and Maxillofacial service of the Faculty of Dentistry of Ribeirão Preto/SP (FORP/USP), totaling 9,736 consultations, 4,524 with facial fractures, those diagnosed with frontal sinus fracture (113) were evaluated and selected for the study. Results: Frontal sinus fractures accounted for 2.5% of facial fractures, the majority occurring in men (89.4%), concentrated in the age group 21-30 years old, with 52.2% of cases being caused by road traffic accidents (RTA). Associations with other facial fractures are common and appeared in 75.2% of cases. Treatment was followed either surgically, by open reduction internal fixation (52.2%) or conservatively (35.4%). Analyzing only the 28 isolated frontal sinus fractures, the most common treatment was conservative (46.4%). surgical treatment dropped to 25%. The most common postoperative complications were temporal branch paralysis and supraorbital nerve paresthesia, both occurring in 30.5% of surgical cases. Conclusion: The frequency of frontal sinus fractures may be decreasing, but the pattern of occurrence in young men due to road traffic accidents does not seem to change, fortunately the appearance of serious complications is not common and it is usually associated with more severe trauma.

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Background: The Klippel-Feil syndrome (KFS) is a rare congenital anomaly characterized by the fusion of cervical vertebrae, which may be associated with other malformations, such as dermoid tumors and teratoma. Some theories explain the embryology of these associations. Another condition that may be present is the dermal sinus (DS), communication between intracranial tumors and the subcutaneous tissue, and predisposing infections. This case report aims to describe an association between these three pathologies as well as correlate them from the literature. This report was based on medical records retrospectively reviewed associated with the systematic bibliographical consultation using indexed databases based on inclusion and exclusion methods. Case Description: An adult male patient, 24 years old, was admitted to our service, presenting fever and meningeal irritation as initial symptoms. In the patient's clinical history, he was diagnosed with an occipital DS in his childhood, which was previously instructed to be operated on by another neurosurgical team, but the patient chose not to perform the procedure. The magnetic resonance imaging investigation showed a DS associated with a cerebellar infected mass with 2 cm on its main diameter. The patient was treated with preoperative antibiotic therapy and underwent gross total surgical resection of the tumor as well as DS correction, confirmed in the histopathological examination as a teratoma. After surgery, further computed tomography scan analysis showed the presence of cervical vertebrae fusion, compatible with KFS diagnosis. Conclusion: The association between KFS, cerebellar teratoma, and DS has not yet been described in the literature, with only the association of the first two being extremely rare.

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The present study was designed to test the hypothesis that there would be a correlation between nasal septum deviation (NSD) and a decreased maxillary sinus volume (MSV) in a Colombian population, using Cone Beam Computed Tomography (CBCT); other sinusal anatomical structures found during the reading were described and analyzed. A retrospective analysis of 537 CBCT scans of adult patients taken between January 2014 and January 2017 included measuring the maxillary sinus diameter in the vertical, horizontal, and sagittal planes. NSD was quantified and related to MSV using the same field of view (FOV). The volume of the right and left maxillary sinuses showed a median and interquartile range (IQR) of 8.18 mm3 (IQR: 6.2-10.33) and 8.3 mm3 (IQR: 6.4-10.36). Statistically significant differences were observed between sex and right and left MSV (p = 0.000), with higher MSV in men. The presence of NSD was observed in 96.81% of the sample and was evaluated in degrees, observing a median of 11° (IQR: 7-16) where 40% of the sample had moderate angles (9-15°). There was no correlation between NSD and a decreased MSV in the population studied. Detailed CBCT analysis with a large FOV is crucial for the analysis of anatomical structures before performing surgical procedures that involve the MS as a preventive diagnostic and therapeutic step for appropriate treatment.

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Introducción: La cirugía endoscópica nasosinusal (CEN) de cavidades paranasales es un tratamiento ampliamente utilizado para la rinosinusitis crónica, con un impacto significativo en mejorar la calidad de vida de los pacientes. Objetivo: Evaluar el impacto de la CEN en la calidad de vida en pacientes con diagnóstico de rinosinusitis crónica en una cohorte nacional y a largo plazo (1 año). Material y Método: Se realizó un estudio de cohorte prospectiva. Se incluyó 95 pacientes con diagnóstico de RSC operados en el servicio de otorrinolaringología del hospital del Salvador en el período 2017-2021. Se compararon síntomas como obstrucción nasal, rinorrea, descarga posterior, algia facial e hiposmia, además de la encuesta SNOT-22 pre y post cirugía utilizando como medidas la escala visual análoga (EVA) de sintomatología cardinal de RSC y SNOT-22. Resultados: Los resultados mostraron una mejoría significativa en todos los síntomas evaluados. La obstrucción nasal, rinorrea, descarga posterior, hiposmia y algia facial presentaron una disminución estadísticamente significativa después de la CEN. Además, la encuesta de calidad de vida SNOT-22 reveló una mejora significativa en la calidad de vida de los pacientes después de la cirugía. Conclusión: Este estudio sugiere que la CEN podría tener un impacto significativo en la mejora de los síntomas y la calidad de vida de los pacientes con rinosinusitis crónica. Los resultados de esta cohorte nacional respaldan la efectividad de la CEN como tratamiento para esta enfermedad a largo plazo (1 año) y destacan la importancia de considerar esta opción terapéutica en el manejo de la RSC.

Introduction: Functional endoscopic sinus surgery (FESS) is a widely employed treatment for chronic rhinosinusitis (CRS) and has shown significant benefits in enhancing the quality of life for affected patients. Objective: To assess the impact of FESS on the quality of life in patients diagnosed with chronic rhinosinusitis in a national and longterm cohort (1 year). Material and Method: A prospective cohort study was conducted at the otolaryngology service of Hospital del Salvador between 2017 and 2021, involving 95 patients diagnosed with CRS who underwent FESS. Symptoms such as nasal obstruction, rhinorrhea, posterior discharge, facial pain, and hyposmia were evaluated. The visual analog scale (VAS) was used to measure the cardinal symptoms of CRS, and the SNOT-22 survey was administered before and after the surgical procedure. Results: The study demonstrated a significant improvement in all evaluated symptoms following FESS. Nasal obstruction, rhinorrhea, posterior discharge, hyposmia, and facial pain exhibited a statistically significant decrease. Moreover, the SNOT-22 survey revealed a notable enhancement in the quality of life for patients after surgery. Conclusion: The highlights of this national cohort support the impact of FESS in alleviating symptoms and improving the quality of life for patients diagnosed with chronic rhinosinusitis. The findings provide strong evidence supporting the effectiveness of FESS as a treatment option for CRS and emphasize the importance of considering this surgical approach in the management of this condition.

Assuntos