scholarly journals USE OF THREE-DIMENSIONAL ENDOSCOPY IN ENDONASAL AND ANTERIOR SKULL BASE SURGERY

2021 ◽  
Author(s):  
Amr Kholief ◽  
Ahmed Youseef ◽  
Ahmed Ibrahim ◽  
Samy Elwany ◽  
Shahz Ahmed
Keyword(s):  
Clinical Study ◽  
Skull Base ◽  
Surgical Procedures ◽  
Skull Base Surgery ◽  
Intraoperative Complications ◽  
Three Dimensional ◽  
Anterior Skull Base ◽  
Anatomical Landmarks ◽  
Intraoperative Complication ◽  
3D Endoscope

Objectives: The three dimensional (3D) endoscope is considered as a new surgical tool which used in different approaches in intranasal and anterior skull base surgical procedures. There are many advantages of the 3D endoscopy over the two dimensional (2D) one that have been demonstrated along clinical applications, surgical training and different experimental studies. Our study aimed to show the difference between using the 3D & 2D endoscopes during endonasal and anterior skull base surgery and its importance specially when used by novice users. Design: Our study is divided into two phases (clinical & cadaveric phases).In the clinical study we have done 52 endonasal & 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, difference in accuracy and dissection time were recorded using 3D & 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 to cases done using 2D endoscope. In cadaveric dissection while using 3D endoscope there was better depth of perception regarding the anatomical landmarks compared to 2D endoscope. Conclusion: 3D endoscopy is an advanced instrument that allows better training for the coming generation of ENT surgeons. Both clinical and cadaveric studies offer a promising outcomes in both endonasal and anterior skull base surgery.

Complications of Endoscopic Pituitary and Anterior Skull Base Surgery: The Learning Curve

Skull Base ◽  
2009 ◽  
Vol 19 (03) ◽  
Author(s):  
Ameet Singh ◽  
Gurston Nyquist ◽  
Vijay Anand ◽  
Theodore Schwartz
Keyword(s):  
Learning Curve ◽  
Skull Base ◽  
Skull Base Surgery ◽  
Anterior Skull Base

Three-Dimensional Model for Virtual Surgical Simulation, during Complex Skull Base Surgery and Aneurysm Surgery

Skull Base ◽  
2008 ◽  
Vol 18 (S 01) ◽  
Author(s):  
Akio Morita ◽  
Toshikazu Kimura ◽  
Shigeo Sora ◽  
Kengo Nishimura ◽  
Hisayuki Sugiyama ◽  
...  
Keyword(s):  
Skull Base ◽  
Surgical Simulation ◽  
Skull Base Surgery ◽  
Three Dimensional ◽  
Aneurysm Surgery ◽  
Dimensional Model ◽  
Three Dimensional Model

scholarly journals Preservation of nasal turbinates in endoscopic, anterior skull base surgery—yes, we can!

2021 ◽  
Author(s):  
Axel Wolf ◽  
Alexandros Andrianakis ◽  
Peter Valentin Tomazic ◽  
Michael Mokry ◽  
Georg Clarici ◽  
...  
Keyword(s):  
Skull Base ◽  
Skull Base Surgery ◽  
Tumor Resection ◽  
Tumor Location ◽  
Anterior Skull Base ◽  
Tumor Diameter ◽  
Tumor Type ◽  
Preoperative Information ◽  
Medical University ◽  
Significant Factors

Abstract Objective To evaluate the frequency, type and indications of nasal turbinate (NT) resection during endoscopic, anterior skull base surgery and to analyze factors that may have an impact on the need of NT removal. Methods In this retrospective cohort study, 306 subjects (150 males and 156 females, mean age 55.4 ± 15.3 years) who underwent multidisciplinary, transnasal, endoscopic tumor surgery of the anterior skull base using 4-handed techniques between 2011 and 2019 at the Department of Otorhinolaryngology, Medical University of Graz, were included. Results In the majority of interventions (n = 281/306; 91.8%), all NT were preserved. Significant factors influencing the need of NT resections turned out to be type of endoscopic approach (p < 0.001; V = 0.304), sagittal (p = 0.003; d = 0.481) and transversal (p = 0.017; d = 0.533) tumor diameter, tumor type (p < 0.001; V = 0.355) and tumor location (p < 0.001; V = 0.324). Conclusions NT can be preserved in the majority of patients undergoing tumor resection in anterior, transnasal, skullbase surgery and routine resection of NT should be avoided. Variables that have an impact on the need of NT resections are types of endoscopic approaches, sagittal and transversal tumor extension and tumor type. These factors should be considered in planning of surgery and preoperative information of patients.

scholarly journals Anterior Skull Base Surgery for Secondary Malignancies in Retinoblastoma Survivors: Report of Two Cases

Skull Base ◽  
1997 ◽  
Vol 7 (01) ◽  
pp. 39-41 ◽  
Author(s):  
Keiichi Ichimura ◽  
Ken-ichi Nibu ◽  
Toshiyoshi Tanaka ◽  
Hideki Takekoshi ◽  
Tomio Sasaki ◽  
...  
Keyword(s):  
Skull Base ◽  
Skull Base Surgery ◽  
Anterior Skull Base ◽  
Secondary Malignancies

scholarly journals Usefulness of Surgical Media Center as a Cataract Surgery Educational Tool

2016 ◽  
Vol 2016 ◽  
pp. 1-8 ◽  
Author(s):  
Tomoichiro Ogawa ◽  
Takuya Shiba ◽  
Hiroshi Tsuneoka
Keyword(s):  
Cataract Surgery ◽  
Surgical Procedures ◽  
Intraoperative Complications ◽  
Recording Device ◽  
Educational Tool ◽  
Intraoperative Complication ◽  
Vacuum Level ◽  
Media Center ◽  
Medical Optics ◽  
Education Tool

Purpose.This study retrospectively analyzed cataract surgeries to examine the usefulness of Surgical Media Center (SMC) (Abbott Medical Optics Inc.), a new cataract surgery recording device, for training of cataract surgery.Methods.We studied five hundred cataract surgeries conducted with a phacoemulsification system connected to the SMC. After surgery, the surgical procedures were reviewed, with changes in aspiration rate, vacuum level, and phaco power displayed as graphs superimposed on the surgical video. We examined whether use of SMC is able to demonstrate the differences in technique between experienced and trainee operators, to identify inappropriate phacoemulsification techniques from analyzing the graphs, and to elucidate the cause of intraoperative complications.Results. Significant differences in the time taken to reach maximum vacuum and the speed of increase in vacuum during irrigation and aspiration were observed between experienced and trainee operators. Analysis of the graphs displayed by SMC detected inappropriate phacoemulsification techniques mostly in cases operated by trainee operators.Conclusions. Using SMC, it was possible to capture details of cataract surgery objectively. This recording device allows surgeons to review cataract surgery techniques and identify the cause of intraoperative complication and is a useful education tool for cataract surgery.

Anterior skull base surgery

2005 ◽  
Vol 38 (1) ◽  
pp. 107-131 ◽  
Author(s):  
Michael J. Kaplan ◽  
Nancy J. Fischbein ◽  
Griffith R. Harsh
Keyword(s):  
Skull Base ◽  
Skull Base Surgery ◽  
Anterior Skull Base

Presigmoid transpetrous approach (partial petrosectomy) combined with subtemporal transtentorial approach for petroclival meningioma

2021 ◽  
Vol 3 (3) ◽  
Author(s):  
Fernando Palacios ◽  
◽  
Manuel Lazón ◽  
Eduardo Romero ◽  
Rommel Rodriguez
Keyword(s):  
Skull Base ◽  
Skull Base Surgery ◽  
Intraoperative Complications ◽  
Brain Magnetic Resonance Imaging ◽  
Complete Resection ◽  
Neurosurgical Procedures ◽  
Resonance Imaging ◽  
Petroclival Meningioma ◽  
Skull Base Neoplasms ◽  
Petroclival Meningiomas

Introduction: Petroclival meningiomas constitute 3 to 10% of meningiomas of the posterior fossa, they originate in the petroclival fissure, in the upper part of the clivus, petrosal apex, and medial to the trigeminal nerve. Resection of these tumors is a neurosurgical challenge. The combined partial petrosectomy approach associated with a sub-temporal approach is a technique described by various authors; however, its performance is considered highly complex. We report the case of a petroclival meningioma operated successfully in our hospital using a combined presigmoid and subtemporal transtentorial transpetrosal approach. Clinical case: 33-year-old female patient with a clinical picture of headache, nausea, and gait disturbance. Brain magnetic resonance imaging showed a large right petroclival tumor (4.2x3.9x3.8cm) that displaced the brainstem and secondary hydrocephalus. The hydrocephalus was treated with a ventricular peritoneal shunt. Then, the tumor was resected using a combined presigmoid and subtemporal transpetrosal approach, a technique that allowed adequate exposure of the tumor, achieving complete resection, without intraoperative complications. Postoperative evolution was favorable, with no sequelae. Conclusion: The combined presigmoid and transtentorial subtemporal transpetrous approach for petroclival meningiomas is an effective and feasible technique to perform in our environment. The support of technology such as Neuronavigation, the ultrasonic aspirator, intraoperative monitoring, and adequate experience in skull base surgery are fundamental factors for the success of this surgery. Keywords: Meningioma, Skull Base Neoplasms, Craniotomy, Neurosurgical Procedures. (Source: MeSH NLM)

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