Abstract Introduction: The sphenoid sinus is an important structure in ventral skull base surgeries that is surrounded by several vital anatomical structures including the internal carotid arteries, optic nerve and cranial nerves inside the cavernous sinus. In addition, the foramen rotundum is a small canal deeply situated in the base of the skull, which represents the way for exit of the maxillary nerve. Understanding of the sphenoid bone anatomical relationships is central to the expanded endonasal approaches to the skull base. Objective: To record and analyze the measurement indexes of the sphenoid sinus and foramen rotundum in the coronal plane of normal computer tomography scans. Methods: Patients underwent paranasal sinuses computer tomography scan from June 2014 to November 2015 were retrospectively entered this cross-sectional study. We obtained several morphometric measurements from both the right and left sides using computer software. We also classified foramen rotundum and vidian canal types and determined position of the foramen rotundum regarding to base of lateral pterygoid plate. Results: One-hundred patients with the mean age of 38.56 ± 18.51 years entered this study. Mean bilateral FR distances were 38.48 ± 3.87 mm. Average right and left FRs distances to midline were 19.00 ± 2.07 and 19.34 ± 2.17 mm, respectively (p = 0.03). Twenty-eight cases (28%) had type I vidian canal, 48% and 24% had type II and III vidian canals, respectively. Four patients (4%) had type I rotundum foramen, 28% and 44% had type IIa and IIb, respectively and 24% had type III rotundum foramen. The position of foramen rotundums regarding to the base of lateral pterygoid plate was online in 50% of cases, medially placed in 47% and laterally placed in 3% of cases. Conclusion: The results of this study can be used to provide a better anatomical understanding of the area, which is necessary for endoscopic skull base surgeons.
Resumo Introdução: O seio esfenoidal (SE) é uma estrutura importante em cirurgias da base do crânio, que está cercada por várias estruturas anatômicas vitais, como as artérias carótidas internas, o nervo óptico e os nervos cranianos no interior do seio cavernoso. Além disso, o forame redondo (FR) é um pequeno canal profundamente situado na base do crânio, que representa a forma de saída do nervo maxilar. Compreender as relações anatômicas do osso esfenoidal é fundamental para as abordagens endonasais expandidas da base do crânio. Objetivo: Registrar e analisar os índices de medição do SE e FR no plano coronal de exames normais de tomografia computadorizada (TC). Método: Os pacientes que foram submetidos a TC dos seios paranasais (SPN) de junho de 2014 a novembro 2015 foram retrospectivamente incluídos neste estudo transversal. Obtivemos várias medidas morfométricas de ambos os lados, direito e esquerdo, com o uso do software de computador. Também classificamos os tipos de FR e canal pterigoideo (CP) e determinamos a posição do FR em relação à base da placa pterigoide lateral. Resultados: Cem pacientes com a média de 38,56 ± 18,51 anos foram incluídos neste estudo. As distâncias médias bilaterais de FR foram de 38,48 ± 3,87 mm. As distâncias médias direita e esquerda dos FR até a linha média foram de 19,00 ± 2,07 e 19,34 ± 2,17 mm, respectivamente (p = 0,03). Vinte e oito casos (28%) tinham canal pterigoideo do tipo I, 48% e 24% canais pterigoideos de tipo II e III, respectivamente. Quatro pacientes (4%) tinham forame redondo do tipo I, 28% e 44% do tipo II-a e II-b, respectivamente, e 24% forame redondo do tipo III. A posição dos FR em relação à base da placa pterigoide lateral era em linha em 50% dos casos, medialmente posicionados em 47% e lateralmente posicionados em 3% dos casos. Conclusão: Os resultados deste estudo podem ser usados para promover uma melhor compreensão anatômica da área, necessária para cirurgias endoscópicas da base do crânio.
http://ift.tt/2vJ5vLQ
Σφακιανάκης Αλέξανδρος
ΩτοΡινοΛαρυγγολόγος
Αναπαύσεως 5 Άγιος Νικόλαος
Κρήτη 72100
00302841026182
00306932607174
alsfakia@gmail.com
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- Paradigm shifts in staging of thyroid cancer
- Editorial Board/Aims & Scope
- Prognostic factors and occult nodal disease in muc...
- Outcome following radiotherapy for head and neck b...
- Rebamipide gargle in preventive management of chem...
- Post-operative therapy following transoral robotic...
- Tube feeding during treatment for head and neck ca...
- Dual peptide-mediated targeted delivery of bioacti...
- Evaluation of the Xpert® HPV assay in the detectio...
- Patterns of fractionation for patients with T2N0M0...
- Characteristics and long-term outcomes of head and...
- Incidence of, and risk factors for, mandibular ost...
- Outcomes of oral cavity cancer patients treated wi...
- Validation and comparison of the 7th and 8th editi...
- Conditional relative survival of oral cavity cance...
- A comprehensive study of smoking-specific microRNA...
- The importance of log odds of positive lymph nodes...
- Endoscopic DCR using bipedicled interlacing mucosa...
- Adjuvant photodynamic therapy in head and neck can...
- Use of standardized letters of recommendation for ...
- Endoscopic DCR using bipedicled interlacing mucosa...
- Adjuvant photodynamic therapy in head and neck can...
- For Embryos, Mother Can Only Take You So Far
- Midkine and Melanoma Metastasis: A Malevolent Mix
- Anchoring Chromatin Loops to Cancer
- GATA Factor-Regulated Samd14 Enhancer Confers Red ...
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- Primary Cilia Signaling Shapes the Development of ...
- Allergen immunotherapy for allergic rhinoconjuncti...
- Laser and Light Treatments for Hair Reduction in F...
- Allergen immunotherapy for allergic rhinoconjuncti...
- Training Groups
- Platelets Modulate Innate Immune Response Against ...
- Role of Ultrasound in Predicting Tumor Invasivenes...
- Role of Ultrasound in Predicting Tumor Invasivenes...
- Photobiomodulation in the Prevention of Tooth Sens...
- The History of Photobiomodulation: Endre Mester (1...
- Efficacy of Multiwave Locked System Laser on Pain ...
- Aggressive large-cell neuroendocrine carcinoma of ...
- Rare combination of left-sided congenital diaphrag...
- Gallstone ileus of the duodenum: an unexpected pre...
- Splenic rupture following synchronised direct curr...
- Reduction en masse of inguinal hernia: a review of...
- Orbital multiple myeloma: a diagnostic challenge
- Paraneoplastic cerebellar degeneration secondary t...
- Missed diaphragmatic injury after blunt trauma pre...
- An uncommon hip pain
- Abdominal aortic aneurysm in the setting of Clostr...
- Toe-to-finger combined with free flap transfer for...
- The merits of decision modelling in the earliest s...
- Frailty and Risk of Cardiovascular Diseases in Old...
- Medical Podcasting and Circulation on the Run: Why...
- Day-to-Day Blood Pressure Variability and Risk of ...
- Rollercoaster Blood Pressure: An Alzheimer Disease...
- When Lightning Strikes: Fulminant Myocarditis in t...
- Fibroblast-Specific Genetic Manipulation of p38 Mi...
- p38[alpha]: A Profibrotic Signaling Nexus.
- EphA2 Expression Regulates Inflammation and Fibrop...
- Modifiable Risk Factors and Atrial Fibrillation.
- How Low Is Too Low With Salt in Heart Failure? Ran...
- Worsening Conduction Delay in Hypertrophic Cardiom...
- Prasugrel or Ticagrelor in ST-Segment-Elevation My...
- Letter by Iellamo and Volterrani Regarding Article...
- Letter by Wisloff et al Regarding Article, "High-I...
- Letter by Bianchi Regarding Article, "High-Intensi...
- Response by Ellingsen et al to Letters Regarding A...
- 2017 ACC/AHA/HFSA Focused Update of the 2013 ACCF/...
- Anaphylaxis associated with omalizumab administrat...
- MicroRNA-150 controls differentiation of intraepit...
- More Than a Decade Follow-up in Severe or Difficul...
- Propagation of respiratory viruses in human airway...
- Anaphylaxis associated with omalizumab administrat...
- MicroRNA-150 controls differentiation of intraepit...
- More Than a Decade Follow-up in Severe or Difficul...
- FPIES: not so rare after all!
- Comparison between autogenous iliac bone and freez...
- Cementoblastoma: an updated analysis of 258 cases ...
- Clarifying a Hierarchical Model of Risk Factors fo...
- Issue Information
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- Voice-Specialized Speech-Language Pathologist's Cr...
- Factors Affecting Voice Therapy Completion in Singers
- Does Microscope Assistance in Cold Steel Tonsillec...
- Does Microscope Assistance in Cold Steel Tonsillec...
- Oral administration of geranylgeranylacetone to pr...
- Pathophysiology and immunological profile of myast...
- Known unknowns: how might the persistent herpesvir...
- Salinity stress, enhancing basal and induced immun...
- Hyoscine butylbromide for colorectal polyp detecti...
- Clinical Features of Refractory Ascites in Outpati...
- Laryngeal tube suction for airway management durin...
- The relationship of the medial roof and the poster...
- The sphenoid sinus, foramen rotundum and vidian ca...
- Endoscopic repair of cerebrospinal fluid rhinorrhea
- Evaluation of vestibular evoked myogenic potential...
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