Evaluation of sinonasal-related quality of life of 49 patients undergoing endoscopic skull base surgery

Abstract Objective This study aimed to evaluate the sinonasal-related Quality of Life (QoL) in patients undergoing endoscopic skull base surgery. Methods A retrospective study was performed, including patients with benign and malignant tumors at a single institution. Each patient completed the 22-Item Sino-Nasal Outcome Test (SNOT-22) and the Empty Nose Syndrome 6 Item Questionnaires (ENS6Q) to assess their perceived QoL at least 2-months after treatment. Results Forty-nine patients were enrolled in this study. The average score was 25.1 (Stander Deviation [SD] 14.99) for SNOT-22 and 6.51 (SD = 5.58) for ENS6Q. Analysis of the overall results for the SNOT-22 showed that olfactory damage was the most serious syndrome. The most frequently reported high-severity sub-domains in SNOT-22 were nasal symptoms and sleep symptoms. Nasal crusting was the most severe item in ENS6Q according to the report. Nine patients (18.4%) had a score higher than 10.5 which indicates the high risk of Empty Nose Syndrome (ENS). SNOT-22 score was related to the history of radiotherapy (p < 0.05), while the ENS6Q score was not. Conclusions The possibility of patients suffering from ENS after nasal endoscopic skull base surgery is at a low level, although the nasal cavity structure is damaged to varying degrees. Meanwhile, patients undergoing endoscopic skull base surgery were likely to suffer nasal problems and sleep disorders. Patients who had received radiotherapy have a worse QoL than those without a history of radiotherapy. Level of evidence Level 3.

Nasal Crust-Related Morbidity and Debridement After Endoscopic Skull Base Surgery

Abstract Introduction: Nasal crust after endoscopic skull base surgery can cause nasal congestion, obstruction, and pain, which can affect quality of life. The use of debridement aims to provide symptomatic relief and improve quality of life. Generally, most adult patients tolerate office-based debridement, except in a few select patients that require further sedation in the operating room for a debridement. The study sought to determine the rate of symptomatic crust-related morbidity and the rate of debridement in both the office and the operating room. Methods: Premorbid, operative, and postoperative data of adult patients who had endoscopic skull base surgery in our institution from 2014 to 2018 were reviewed retrospectively. The characteristics of nasal symptoms in the postoperative period were determined and the numberofdebridementsin theoffice and the operatingroomwere analyzed. Results: Two hundred and thirty-four (234) patients with 244 surgeries were included in the study. The majority, 68.9%, had a sellar lesion and a free mucosa graft (FMG) was the most common skull base reconstruction at 53.5%. One hundred and twenty (49.0%) had crust-related symptoms during the postoperative period and 11 patients (4.5%) required the operating room for debridement. The use of a pedicled flap, anxiety, and preoperative radiotherapy were significantly associated with intolerance to in-office debridement (p-value=0.05). Conclusions: The use of a pedicled flap or anxiety may predispose patients to require an OR debridement. Previous radiotherapy also influenced the tolerance to the in-office debridement.

Evaluation of The Three-Dimensional Endoscopy in Basic and Extended Nasal Procedures: A Clinical and Cadaveric Study

Abstract Introduction The three-dimensional (3D) endoscope is considered a new surgical tool used in different approaches in intranasal and anterior skull base surgical procedures. There are many advantages of 3D over two-dimensional (2D) endoscopy that have been demonstrated in clinical applications, surgical training, and different experimental studies. Objective To show the difference between using the 3D and 2D endoscopes during endonasal and anterior skull base surgery and its importance. Methods Our study is divided into two phases (clinical and cadaveric phases). In the clinical study we, have performed 52 endonasal and anterior skull base surgical procedures (26 study cases and 26 control cases). We recorded accuracy, duration, and intraoperative complication for each case. The cadaveric study was performed on three cadavers. Differences in accuracy and dissection time were recorded using 3D and 2D endoscopy for each side chosen by randomization. Results In the clinical study, the cases done by 3D endoscope were significantly faster and more accurate with less intraoperative complications compared with cases done using 2D endoscope. In cadaveric dissection, while using 3D endoscope, there was better depth of perception regarding the anatomical landmarks compared with 2D endoscope. Conclusion Three-dimensional endoscopy is an advanced instrument that allows better training for the coming generation of ear, nose, and throat surgeons. Both clinical and cadaveric studies offer a promising outcome in both endonasal and anterior skull base surgery.

Morbidity in the postoperative follow-up of endoscopic anterior skull base surgery / Fatores relacionados à morbidade no seguimento pós-operatório da cirurgia endoscópica de base de crânio anterior

Abstract Introduction: Endoscopic access to the sellar region by videoendoscopy shows a low rate of surgical complications, with findings that indicate risk factors for reducing morbidities during and after the postoperative period. Objective: To evaluate, over a nine-year period, the acquisition of skills by the anterior skull base surgical team, according to the time of elimination of nasal crusts and/or the presence of morbidities in the postoperative follow-up of individuals treated in a tertiary public hospital. Methods: After confirming the diagnosis of skull base pathologies, the individuals in this study underwent endoscopic surgery according to the rostrocaudal or coronal axis. For the skull base reconstruction, the nasoseptal flap (associated or not with fascia lata with thigh fat) or free graft was used; clinical follow-up of individuals occurred for a minimum period of 12 months. To assess the impact of the surgical approach on patient clinical evolution, qualitative data related to smoking, post-nasal discharge, nasal flow, smell, taste, clinical symptoms of headache, cranial paresthesia, comorbidities and postoperative morbidities were obtained. Results: The most frequent diagnosis was pituitary macroadenoma (84.14%). The mean absence of crusts in this cohort was 124.45 days (confidence interval 95% = 119.50-129.39). There was a low cerebrospinal fluid fistula rate (3%). Reconstruction with the nasoseptal flap with a fat graft was an independent variable that recorded the highest mean time for the elimination of nasal crusts (=145 days, confidence interval 95% = 127.32-162.68). Allergic rhinitis and smoking were shown to be the most important and independent variables that increased the mean time to eliminate nasal crusts. Conclusion: The mean time to eliminate nasal crusts did not change over the years during which the procedures were performed, demonstrating the adequate training of the surgical team. Debridement and nasal irrigation with saline solutions should be performed more frequently and effectively in patients with allergic rhinitis, smokers and those who received the nasoseptal flap and fascia lata graft with autologous fat.

Resumo Introdução: O acesso endoscópico à região selar por videoendoscopia demonstra baixo índice de complicações cirúrgicas, com achados que apontam fatores risco para reduzir as morbidades durante e após o período pósoperatório. Objetivo: Avaliar fatores morbidades no seguimento pós-operatório de indivíduos atendidos em um hospital público terciário. Método: Depois de confirmado o diagnóstico de doenças da base do crânio, os indivíduos deste estudo foram submetidos a cirurgia endoscópica conforme o eixo rostrocaudal ou coronal. Para a reconstrução da base do crânio usava-se o retalho nasoseptal (associado ou não à fáscia lata com gordura de coxa) ou enxerto livre; o seguimento clínico dos indivíduos ocorreu por um período mínimo de 12 meses. Para avaliar o impacto da abordagem cirúrgica na evolução clínica dos pacientes foram obtidos os dados qualitativos relativos ao tabagismo, descarga pós-nasal, fluxo nasal, olfato, paladar, sintomas clínicos de dor de cabeça, parestesia craniana, comorbidades e morbidades pós-operatórias. Resultados: O diagnóstico mais frequente foi o macroadenoma hipofisário (84,14%). A média da ausência de crostas nesta coorte foi de 124,45 dias (intervalo de confiança [95% CI] 119,50-129,39). Baixo índice de fístula liquórica (3%). A reconstrução com o retalho nasoseptal com enxerto de gordura apresentou-se com variável independente que necessitou de maior tempo médio para a eliminação de crostas nasais (=145 dias, 95% CI 127,32-162,68). A rinite alérgica e o tabagismo se demonstraram como as variáveis mais importantes e independentes para aumentar o tempo médio de eliminação de crostas nasais. Conclusão: O tempo médio de eliminação de crostas nasais não se alterou ao longo dos anos em que os procedimentos foram feitos. Deve-se fazer com maior frequência e eficácia o debridamento e as irrigações nasais com soluções salinas nos pacientes com rinite alérgica, tabagistas e os que usaram o retalho nasoseptal e enxerto de fáscia lata com gordura autóloga.

Diagnostic and therapeutic endonasal rhinologic procedures generating aerosol during COVID-19 pandemic: a systematized review / Procedimentos endonasais de rinologia diagnósticos e terapêuticos geradores de aerossóis durante a pandemia de Covid-19: uma revisão sistematizada,

Abstract Introduction Most rhinologic procedures, particularly endoscopic sinonasal procedures, are liable to produce aerosols. The severe acute respiratory syndrome coronavirus 2 (SARS-Co V-2) transmits via respiratory droplets, but the degree of its spread through airborne routes by aerosol is unclear. Objective The aim of this article is to counsel rhinologists on how to modify their conventional practice during the COVID-19 pandemic by prioritising the need of procedures, identifying aerosol- generating procedures and using precise personal protection equipment for various endonasal procedures. Methods We did a review of articles indexed for MEDLINE on PubMed, ENT Cochrane, DOAJ and Web of Science databases using the keywords nasal endoscopy, SARS-CoV-2, COVID-19, aerosol generating medical procedures and rhinology to formulate guidelines for the safety of healthcare workers. Results The review included evidence from 28 articles from the otorhinolaryngology, surgery, infectious disease, head and neck surgery and cancer biology literature. We have provided recommendations and relevant information for rhinologists during the COVID-19 pandemic, based on the available studies and data, to warrant high-quality patient care and requisite levels of infection prevention during rhinology procedures. Conclusion In rhinology, marked care is advised during nasal packing, electrocauterisation and use of high-speed rotating devices in potentially infected tissue as they are considerable aerosol- producing procedures. The choice of personal protective equipment is based on the risk of exposure and possible modes of aerosol generation.

Resumo Introdução A maioria dos procedimentos rinológicos, principalmente os procedimentos endoscópicos nasossinusais, é suscetível à produção de aerossóis. A síndrome respiratória aguda grave coronavírus-2 (SARS-CoV-2) é transmitida através de gotículas respiratórias, mas o grau de sua disseminação através de aerossóis por via aérea não é claro. Objetivos Orientar os rinologistas sobre como modificar sua prática convencional durante a pandemia de Covid-19, priorizar a necessidade de procedimentos, identificar procedimentos geradores de aerossol e usar equipamento de proteção individual de precisão para vários procedimentos endonasais. Método Fizemos uma revisão de artigos indexados na Medline por meio das bases de dados PubMed, ENT Cochrane, DOAJ e Web of Science, com as palavras-chave nasal endoscopy, SARS-CoV-2, Covid-19, aerosol-generating medical procedures e rhinology para formular diretrizes para a segurança dos profissionais de saúde. Resultados A revisão incluiu evidências de 28 artigos de otorrinolaringologia, cirurgia, doenças infecciosas, cirurgia de cabeça e pescoço e biologia do câncer. Fornecemos recomendações e informações relevantes para rinologistas durante a pandemia de Covid-19, com base nos estudos e dados disponíveis, para garantir atendimento de alta qualidade ao paciente e níveis necessários de prevenção da infecção durante procedimentos de rinologia. Conclusões Em rinologia, recomenda-se cuidado acentuado durante o tamponamento nasal, eletrocauterização e uso de dispositivos rotativos de alta velocidade em tecidos potencialmente infectados, pois esses procedimentos são consideráveis produtores de aerossóis. A escolha do equipamento de proteção individual é baseada no risco de exposição e nos possíveis modos de geração de aerossol.

Risk factors and clinical characteristics of intracranial infection after endoscopic endonasal skull base surgery / 中国肿瘤临床

Objective: To identify risk factors associated with intracranial infection after endoscopic endonasal skull base surgery. Methods: From January 2011 to December 2016, 150 patients who underwent endoscopic resection of a skull base tumor at the Chinese Academy of Medical Sciences Cancer Hospital (CAMS) were selected. Data related to general patient characteristics, underlying disease, type of operation, postoperative condition, and antimicrobial drug use, etc., were collected. The SPSS21.0 software was used to perform univariate and multivariate logistic analyses. Results: Of 150 patients, 27 had intracranial infection, and the infection rate was 18%. Logistic regression analysis revealed that no antimicrobial agents were used 0.5-1 h before the operation, external ventricular drain or lumbar drainage during operation, skull base reconstruction, and BMI ≥25 were independent risk factors for intracranial infection. Conclusions: Independent risk factors of intracranial infection after endoscopic resection of skull base tumors were screened. The results provide a basis for the accurate management of infection control at surgical sites.

Endoscopic endonasal approach for management of craniopharyngiomas (65 cases) / 中国内镜杂志

Objective To present our experience with management of craniopharyngiomas by endoscopic endonasal approach Methods A retrospective review of clinical data of 65 patients who were treated for craniopharyngiomas by endoscopic endonasal approach from February 2012 to May 2016. All patients were analyzed by treatment effect, complications, and follow-up result. Results Total removal of the tumors were completed in 52 cases (80.0%), subtotal removal in 11 cases (16.9%), and partial resection in 2 cases (3.1%). The pituitary stalks were identified in 57 cases when surgery, and severed in 41 cases (71.9%). Postoperative visual acuity was improved in 31 cases (47.7%), and 6 cases remained in the preoperative level, whereas worsening occurred in 1 case. Worsening of the anterior pituitary function was reported in 21 cases (32.3%). Transient diabetes insipidus after operation was occurred in 45 patients (69.2%), and long-term diabetes insipidus was occurred in 9 cases (13.8%). Postoperative cerebrospinal fluid (CSF) leak was occurred in 4 cases (6.2%), accompanied with intracranial infection, and all these cases were repaired under endoscope again, 3 cases were saved, but 1 case was dead. Perioperative mortality rate was 4.6%. 52 patients were followed up for 4.0 ~ 45.0 (mean, 20.8) months, and 44 patients (84.6%) returned life to normal. Obesity developed in 8 patients (15.4%), with 2 recurrent cases and no deaths during follow-up period. Conclusion The endoscopic endonasal approach is a safe and effective minimally invasive surgery approach for treating craniopharyngiomas, and has its own unique advantage.

A clinical experience of endoscopic treatment for benign and malignant tumors of skull base / 天津医药

Objective To summarize the surgical skills and experience of skull base surgery by endoscopic treatment. Methods A total of 8 cases with benign and malignant tumors were treated in our hospital from August 2014 to December 2016, including orbital region, sellar region, clivus, pterygopalatine fossa and infratemporal fossa. The endoscopic endonasal surgery involved optic nerve decompression, internal carotid artery, treatment of middle skull base and clivus dura tumors, opening of pterygopalatine fossa and infratemporal fossa. The anti infection and anti inflammation treatment of the dura and the internal carotid artery and the treatment of the complications such as diplopia, vision decrease, and the adjustment of pituitary hormones were given to patients after operation. Results The visual of a patient with fungal sinusitis recovered from no light perception to "finger/1 m" at one week after surgery. One of the patients with pituitary tumor underwent unilateral eyeball abduction limitation. The symptoms disappeared after one week treatment. Insipidus occurred in 1 patient with invasive pituitary adenoma, after symptomatic treatment for half a month, urine volume and specific gravity tend to normal. Two patients with adenoid cystic carcinoma underwent enhanced MRI examination at 10 days, 3 months and 1 year after operation, both achieved total resection and no local recurrence. The patient with nasopharyngeal carcinoma reached total resection after operation, and showed no local recurrence after six-month follow-up. All the 8 patients achieved complete resection in one stage, without any serious complication after operation. Conclusion Endoscopic endonasal surgery is an important method for the treatment of tumour in anterior skull base, which needs extensive surgical experience and cooperation with other clinical departments.

Pre-operative measurement of the morphometry and angles of the anterior clinoid process (ACP) for aneurysm surgery / Medición preoperatoria de la morfometría y los ángulos del proceso clinoide anterior (PCA) para la cirugía de aneurisma

The anterior clinoid process (ACP) is proximal to vital structures, such as the optic nerve, internal carotid artery and ophthalmic artery; therefore, study of its anatomy is important in guiding and defining surgery. We studied the anatomical structure of the ACP, including the angle formed by the apex of the ACP triangle, and its orientation, to provide information for easier and safer surgery. The measurement was performed on the axial planes of 242 cranial computerized tomography (CT) scans and 27 adult Turkish skulls of both sexes. The length of the ACP, width of the ACP at its base, the angle formed by the apical angle of the ACP triangle and the orientation of the ACP defined according to the sagittal midline were examined. In the Turkish skulls, the length and width of the ACP were similar to previous studies. Our study was the first to measure the angle and orientation of the ACP. The mean angle was 39.67±12.64 (16.6-89.5) and 135 posterior (55 %) and 107 medial (45 %) orientations. Surgical complications can be avoided by pre-operative radiological planning using axial CT scans and by determining whether the morphology is Type 2 (long, narrow, acute-angled), which requires total resection.

El proceso clinoide anterior (PCA) está próximo a estructuras vitales, como el nervio óptico, la arteria carótida interna y la arteria oftálmica, por tanto el estudio de su anatomía es importante en la orientación y la definición de la cirugía de base de cráneo. Se estudió la estructura anatómica de la PCA, incluyendo el ángulo formado por el vértice del triángulo PCA, y su orientación, para proporcionar información para una cirugía más fácil y más segura. La medición se realizó en los planos axiales de 242 exploraciones craneales de tomografía computarizada (TC) y 27 cráneos de individuos adultos turcos de ambos sexos. Se examinó la longitud del PCA, el ancho del PCA en su base, el ángulo formado por el ángulo apical del triángulo PCA y la orientación del PCA definido de acuerdo con la línea mediana sagital. En cráneos turcos, la longitud y el ancho del PCA fueron similares a estudios anteriores. Nuestro estudio fue el primero en medir el ángulo y la orientación del PCA. El ángulo promedio fue de 39,67 ± 12,64 (16,6 a 89,5) y, la orientación fue posterior en 135 cráneos (55 %) y medial en 107 cráneos (45 %). Las complicaciones quirúrgicas pueden evitarse mediante la planificación radiológica preoperatoria através de cortes axiales de tomografía computarizada y determinando si la morfología del PCA es de tipo 2 (larga, estrecha y aguda en ángulo recto), lo que requiere la resección total.

Uso del drenaje lumbar preoperatorio en la cirugía de base de cráneo / Use of preoperative lumbar drainage in skull base surgery

La inserción de un Drenaje Lumbar, es una estrategia cada día más aceptada para mitigar no sólo la fístula de líquido cefalorraquídeo, que puede seguir en el postoperatorio a una cirugía de base de cráneo, sino para disminuir el edema cerebral transoperatorio. Se realiza un estudio retrospectivo de 461 casos, intervenidos quirúrgicamente con lesiones tumorales de la base del cráneo y aneurismas intracraneales, con diferentes diagnósticos; Meningioma de fosa anterior (n = 46), meningioma de fosa media (n = 103), Meningioma de fosa posterior (n = 42), aneurismas intracraneales (n = 203), tumores malignos de fosa posterior (n = 38), Síndrome Chiari I-Siringomielia (n = 24). La mayoría fueron abordados por vía intracraneal, sólo en algunos casos utilizamos el abordaje combinado; Abordaje pterional (n = 283), abordaje fronto-orbito-cigomático FOC (n = 23), bifrontal (n = 22), frontal unilateral (n = 18), pre y retrosigmoideo (n = 14), retrosigmoideo (n = 17), craniectomía bilateral de fosa posterior (n = 49), craniectomía mínima de fosa posterior (n = 24), Combinado FOC-transeptoesfenoidal (n = 5), transoral (n = 4), transfacial (n = 2). Del total de pacientes intervenidos en 22 pacientes se desarrolló una fistula de LCR (22/461 = 4,7 por ciento), entre ellos, 3 casos necesitaron reparación directa. Edema cerebral, meningitis postquirúrgica y neumoencéfalo fueron las complicaciones más frecuentemente encontradas con un 4,1 por ciento, 2,6 por ciento y 3,03 por ciento respectivamente. El uso rutinario del Drenaje Lumbar preoperatorio, se acompaña de un bajo índice de complicaciones tales como fístulas de LCR, neumoencéfalo y sepsis del SNC, además de ser un proceder bien tolerado por los pacientes.

The Lumbar Drainage insert is a strategy every day more accepted, not only to mitigate the cerebrospinal fluid leaks that can be continued in the postoperative of skull base surgery, also to decrease brain edema during surgery. We carried out a retrospective study of 461 cases, operated with tumoral lesions of skull base and intracranial aneurysm, with different diagnoses; anterior fossa meningioma (n = 46), middle fossa meningioma (n = 103), posterior fossa meningioma (n = 42), intracranial aneurysm (n = 203), malignant tumors of posterior fossa (n = 38), Chiari I-Siringomielia Syndrome (n = 24). Most was approached for intracranial route, only in some cases we use the combined approached; Pterional Approach (n = 283), Frontal orbito-zygomatic FOZ (n = 23), Bifrontal Approach (n = 22), unilateral Frontal Approach (n = 18), Pre and retrosigmoid Approach (n = 14), Retrosigmoid Approach (n = 17), bilateral Craniectomy of posterior fossa (n = 49), minimal Craniectomy of posterior fossa (n = 24), Combined FOZ-transeptosphenoidal Approach (n = 5), Transoral Approach (n = 4), Transfacial Approach (n = 2). The total of patients operated, in 22 patients a CSF leak it was developed (22/461 = 4,7 percent), among them, 3 cases needed direct surgical repair, brain edema, post-surgical meningitis and pneumocephalus were the most frequently complications with 4,1 percent, 2,6 percent and 3,03 percent respectively. The routine use of preoperative Lumbar Drainage is follow to a low incidence of complications as CSF leaks, pneumocephalus and CNS infection, besides being well tolerated by the patients.

Clinical Features and Surgical Outcomes of Glomus Tumors in the Temporal Bone and Skull Base / 대한이비인후과학회지

BACKGROUND AND OBJECTIVES: Glomus tumors are benign, slow-growing tumors which cause various symptoms such as pulsatile tinnitus and hearing loss. The aim of this study was to analyze the clinical manifestation and surgical outcomes of the glomus tumors in the temporal bone and skull base. SUBJECTS AND METHOD: Medical records of 17 patients who were surgically managed for glomus tumors of the temporal bone and skull base from 1997 to 2013 were retrospectively reviewed. The location and the size of the tumor were analyzed by CT and MRI, and the Fisch classification method was used to classify the tumor. Pre- and postoperative facial function measured by House-Brackmann (H-B) grade and lower cranial nerve (LCN) function were collected. RESULTS: The mean age of 17 patients was 50.6 (18-83) years, and male to female ratio was 4:13. The most common symptom of glomus tumors was pulsatile tinnitus, and this symptom disappeared or changed naturally postoperatively. The majority of patients with glomus jugulare showed various degrees of immediate postoperative facial nerve palsy, and 8 out of 9 patients showed improvement of facial nerve function to H-B grade I in 3 months. LCN palsy occurred in 5 out of 9 patients immediately following the operation and remained in 3 patients with Fisch type C2 tumor. CONCLUSION: Glomus tumors of the temporal bone and skull base were successfully removed by surgery. The surgical outcome of glomus jugulare shows that facial nerve function is acceptable and the incidence of lower cranial nerve palsy may be related to the classification of tumor.

Endoscopic Management of Cerebrospinal Fluid Rhinorrhea

Cerebrospinal fluid (CSF) rhinorrhea has become a relatively common disease due to increasingincidents oftraffic accidents and endoscopic sinus surgeries, including skull base surgery. Improvements in surgical skills and endoscopicequipment have contributed to broadening the indicationsforendoscopic management ofCSF rhinorrhea. Precise identification of the etiology and leakage site is important for the treatment of CSF rhinorrhea. A variety of sealing techniques, such as overlay, underlay, and bath-plug, showed similar surgical outcomes. In addition, the type of graft material did not make a difference inthe surgical results. Therefore, thechoice of technique and graft material depends on the judgment of the surgeon. Endoscopic management of CSF rhinorrhea demonstrated anexcellent success rate and low morbidity. There were only few complications duringendoscopic management of CSF rhinorrhea and these were not serious. In conclusion, endoscopic management is effective for CSF rhinorrhea and should be initially considered for the treatment of CSF leakage.

Management of Carotid Artery Injury in Endonasal Surgery

Introduction: Carotid artery injury (CAI) is the most feared and potentially catastrophic intraoperative complication an endoscopic skull base surgeon may face. With the advancement of transnasal endoscopic surgery and the willingness to tackle more diverse pathology, evidence-based management of this life-threatening complication is paramount for patient safety and surgeon confidence. Objectives: We review the current English literature surrounding the management of CAI during endoscopic transnasal surgery. Data Synthesis The searched databases included PubMed, MEDLINE, Cochrane database, LILACS, and BIREME. Keywords included “sinus surgery,” “carotid injury,” “endoscopic skull base surgery,” “hemostasis,” “transsphenoidal” and “pseudoaneurysm.” Conclusions: Review of the literature found the incidence of CAI in endonasal skull base surgery to be as high as 9% in some surgeries. Furthermore, current treatment recommendations can result in damage to critical neurovascular structures. Management decisions must be made in the preoperative, operative, and postoperative setting to ensure adequate treatment of CAI and the prevention of its complications such as pseudoaneurysm. Emphasis should be placed on surgical competency, teamwork, and technical expertise through education and training...

Nasoangiofibroma juvenil: una revisión actualizada del diagnóstico, clasificación y tratamiento / Juvenile nasopharingeal angiofibroma: a current review of diagnosis, clasification and treatment

Objetivo: Realizar una recopilación de datos acerca del nasoangiofibroma juvenil (NAF) permitiendo aclarar conceptos en cuanto al diagnóstico, clasificación y aproximación del manejo. Diseño: Revisión de la literatura. Método: Se recolectaron datos históricos, anatómicos, etiológicos, las múltiples clasificaciones adoptadas hasta el momento, los distintos tratamientos propuestos y las indicaciones sugeridas según la Rinología actual. Conclusiones: El NAF es un tumor de naturaleza benigna, ampliamente vascularizado, de comportamiento agresivo dada su propiedad de erosión y extensión, con pronóstico favorable cuando su diagnóstico y tratamiento es temprano. La embolización es un aspecto fundamental en el adecuado control vascular e intraquirúrgico de la lesión. El manejo endoscópico hadisminuido la morbilidad, la estancia hospitalaria y las complicaciones generadas por los abordajes externos. Ocasionalmente se requiere de abordajes quirúrgicos combinados o el uso de terapéuticas ablativas adicionales. El nasoangiofibroma juvenil requiere de un manejo interdisciplinario, pues plantea un reto diagnóstico, terapéutico intervencionista y quirúrgico.

Objective: To collect data about Juvenile Nasopharyngeal Angiofibroma (JNA), clarifying concepts about diagnosis, classification and management approach. Design: Review of the literature. Method: Data were collected historical, anatomical, etiological, multiple classifications adopted so far, the various proposed treatments and the indications suggested by the current Rhinology. Conclusions: The NAF is a benign tumor, extensively vascularized, aggressive behavior because of its ownership of erosion and extension, with a favorable prognosis when diagnosis and treatment is early realized. Embolization is a fundamental aspect of proper control and intraoperative vascular injury. Endoscopic treatment has decreased the morbidity, hospital stay and complications caused by external approaches. Occasionally requires combined surgical approaches or the use of additional ablative therapy. The Juvenile angiofibroma requires interdisciplinary management; it poses diagnostic, interventional and surgical challenge therapy.

Cirurgia da base do crânio: uma desafiadora especialidade da medicina moderna / Skull base surgery: a challenging speciality of modern medicine

A cirurgia da base do crânio emerge como uma especialidade da medicina moderna. Seu principal objetivo é tratar lesões, principalmente tumores, situados em complexa topografia anatômica e que, há duas décadas, eram considerados inoperáveis. O objetivo desta revisão é fornecer ao médicos generalistas uma visão dos aspectos conceituais, históricos, patológicos, epidemiológicos, clínicos e terapêuticos em cirurgia da base do crânio.

Skull base surgery has emerged as a specialty in modern medicine. Its main objective is to treat injuries, especially tumors located in anatomically complex sites that two decades ago were considered inoperable. The aim of this review is to provide general practitioners with a view of conceptual, historical, pathological, epidemiological, clinical and therapeutic aspects of skull base surgery.

Giant cavernous hemangioma of the cavernous sinus: case report and review of literature

The incidence of cavernous sinuses cavernous hemangiomas is 2 percent of all cavernous malformations. These lesions are well circumscribed benign neoplasm, that are confined to the dural layer of the venous sinus. These lesions are difficult to accurately diagnose them presurgically and the surgical treatment is also difficult. Nevertheless with the new imagining diagnosis technologies and with advancement in microneurosurgical techniques, neurosurgeons can treat these lesions with more confidence. In this article we want to report a case of a 24 year woman who presented to our institution with galactorrea as the only clinical presentation. This patient was investigated and was found to have a giant lesion in the right middle fossa. She was taken to surgery with the suspicion of a giant meningioma but this surgery was aborted when we found that the lesion did not correspond to a meningioma. The patient was followed for 4 years and the galactorrea was treated and she was stable, but then she presented with severe headache and deterioration in her consciousness. She was treated in another institution where she was taken to surgery and a partial resection was performed, the surgery was aborted because the patient presented massive bleeding. we want to present this case that is dealing with an infrequent lesion of a very delicate localization of the skull base. We also want to emphasize in having this differential diagnosis when dealing with lesions in this area. We also want to warn and recommend that if a neurosurgeon stumble into one of these lesions in surgery we recommend to back off and plan better the surgical management. Planning adequately the surgical procedure improve the prognosis in these patients We will present this case and review the literature concerning these rare lesions.

La incidencia de los hemangiomas cavernosos del seno cavernoso es del 2 por ciento de todas las malformaciones cavernosas. Estas lesiones son neoplasias benignas bien diferenciadas, que se encuentran confinadas en la capa dural de los senos venosos. Estas lesiones son difíciles de diagnosticar de manera segura en las etapas prequirugicas y su tratamiento es difícil. Sin embargo con las nuevas tecnologías de imágenes diagnosticas y los avances en la microneurocirugía, los neurocirujanos podemos tratar estas malformaciones de manera más segura. En este artículo queremos reportar un caso de una mujer de 24 años quien consulto a nuestra institución por galactorrea. Esta paciente fue investigada y se le diagnostico una lesión gigante de la fosa media derecha. Se llevo a cirugía bajo la sospecha que presentaba un meningioma gigante pero esta cirugía se aborto cuando se encontró que la lesión se trataba de una patología distinta. La paciente siguió en controles por 4 años donde se mantuvo estable con mejoría de la galactorrea con manejo medico, pero luego comenzó a presentar cefalea severa asociada a deterioro de la conciencia. La paciente fue tratada en otra institución donde fue llevada a cirugía en la cual una resección parcial se le realiza a la paciente. Esta cirugía se aborto por un sangrado excesivo. Queremos presentar este caso que trata de una lesión infrecuente en un sitio de alto riesgo quirúrgico de la base del cráneo. Enfatizamos en tener esta patología entre lo diagnósticos diferenciales de las lesiones de esta localización. Además, recomendar que en caso que uno se encuentre con una de estas lesiones en cirugía, recomendamos que finalice la cirugía en ese momento y que planee un manejo quirúrgico enfocado para esta patología en un nuevo tiempo quirúrgico. Un adecuado planeamiento del procedimiento quirúrgico mejora el pronóstico en estos enfermos. En este artículo queremos reportar un caso y revisar la literatura que concierne estas lesiones raras...

Endoscopic Endonasal Transsphenoidal Skull Base Surgery / 대한이비인후과학회지

Endoscopic skull base surgery has significantly developed than the past years because of the improved understanding of endonasal endoscopic skull base anatomy, developed endoscopic techniques and the changes of endoscopic technologies. From the management of inflammatory pathologies, we have learned to manage skull base lesions. Current anatomical knowledge with computer aided surgery has enabled surgeons to remove large lesions in the paranasal sinuses extending beyond the boundaries of the sinuses themselves. And so, the management of benign diseases with endoscope is nowadays well accepted whilst the role of endoscopic techniques in sinonasal malignancies is still under investigation. Nowadays, it is possible to tackle different pathologies placed not only in the ventral skull base, but also extended laterally (infratemporal fossa and petrous apex) and even, in really selected cases, within the orbit. At the moment, the improvement in surgical techniques has rendered endoscopic procedures capable of managing complex pathologies, according the same surgical principles of the open approaches. From now on, frameless neuronavigation, modular approaches, intraoperative imaging systems and robotic surgery are and will be an increasingly important part of endonasal surgery, and they will be overtaken by further evolution.

New Technique for Surgery of Petrous Apex Cholesterol Granuloma

The authors present a new technique for surgery of cholesterol granuloma (CG) at the petrous apex. An epidural middle fossa approach is used to expose and remove the cyst, with silicon tube drainage into the sphenoid sinus via the anterolateral cavernous sinus triangle between the first and second divisions of the trigeminal nerve. This novel method is less invasive skull base approach to the petrous apex and very effective for minimizing recurrence of CGs within the petrous apex.

Establishment of Transsphenoidal Approach in Skull Base Surgery: A Historical Analysis / 의사학

Many approaches are being used for exposure of the anterior cranial base regions, ranging from extracranial to intracranial, such as transsphenoidal approach. This intracranial approach, developed in the beginning of the twentieth century, has recently become one of the most commonly used approaches after many incremental improvements. This thesis aims at examining the development of the approach and those who contributed to this procedure. The author also contemplate problems which may occur in the historical analysis. From the nineteenth century, advances have been made in anesthesiology, sterilization, cerebral localization and knowledge of anatomical and physiologic aspects of the skull base. The development of new knowledge and technique has helped to overcome obstacles, making surgery of the skull base through extracranial approach both technically feasible and therapeutically effective. To avoid serious postoperative complications after the extracranial approach, transsphenoidal approach had been developed in the beginning of the twentieth century. Transsphenoidal approach had been widely used right after its introduction. But it had not been used popularly since late 1920s in the United States. In early 1960s, this technique, spread from Europe, has regained popularity and become one of the most widely-used approaches. In the history of the transsphenoidal approach, it has been thought that the effort of Harvey Cushing and Oskar Hirsch, the endeavor of Cushing's scholars, several new attempts of otolaryngologists played an important role. However, comparing to great appreciation of neurosurgeons, especially Harvey Cushing on their significant contribution to the further development of this technique, the role of other pioneering doctors have been underestimated in previous historical studies on the transsphenoidal approach. It was because dynamical relationships among several specialties had influence on the historical analysis. This cases shows that historical analysis is influenced not only by past figures but also by current situations.

Transcranial Approach for Resection of Tumors in Area of the Anterior Skull Base, Orbit and Paranasal Sinuses / 中国医师杂志

Objective To investigate the feasibility and complications of the transcranial approach for resection of tumors that involve the anterior skull base, orbit and paranasal sinuses. Methods Nine cases of tumors involving the anterior skull base, orbit and paranasal sinuses, which were resected by transcranial approach alone in our hospital from July 2000 to April 2001, were retrospectively analyzed. All patients had the lesion of the anterior skull base and orbit, and 5 cases had additional paranasal sinuses involvement. Results The tumors in all patients were removed completely. Complications occurred in three cases, including one case of cerebrospinal fluid leaking and two cases of blepharoptosis. One died of tumor recurrence one year after operation. Eight were tumor-free survival during the follow-up period of 20～29 months. Conclusion The transcranial approach can completely remove the tumors widely invading the anterior skull base, orbit and paranasal sinuses. Separation of the periosteum of the orbital roof can cause blepharoptosis, which leads to failure of cosmetics. Extending approach must be avoided if it is possible. The reconstruction of the skull base with pedicle pericranial flap may be the key factor to reduce complications.