Complications after Proton Beam Therapy to Skull Base Tumors: Case Series

2019 ◽  
Author(s):  
Gustavo Rangel ◽  
Mostafa Shahein ◽  
Thiago Felicio ◽  
Guilhermo Malave ◽  
Nyall London ◽  
...  
Keyword(s):  
Skull Base ◽  
Proton Beam ◽  
Case Series ◽  
Proton Beam Therapy ◽  
Skull Base Tumors

Proton Beam Therapy for Unresectable Adenoid Cystic Carcinoma of the Skull Base

Skull Base ◽  
2008 ◽  
Vol 18 (S 01) ◽  
Author(s):  
Annie Chan ◽  
Paul Busse ◽  
Urmila Kamat ◽  
Derrick Lin ◽  
Norbert Liebsch
Keyword(s):  
Adenoid Cystic Carcinoma ◽  
Skull Base ◽  
Proton Beam ◽  
Proton Beam Therapy ◽  
Adenoid Cystic

scholarly journals Transnasal endoscopic approach for pediatric skull base lesions: a case series

2019 ◽  
Vol 24 (3) ◽  
pp. 246-257 ◽  
Author(s):  
Jennifer L. Quon ◽  
Lily H. Kim ◽  
Peter H. Hwang ◽  
Zara M. Patel ◽  
Gerald A. Grant ◽  
...  
Keyword(s):  
Skull Base ◽  
Pediatric Population ◽  
Case Series ◽  
Length Of Hospital Stay ◽  
Skull Base Tumors ◽  
Presenting Symptoms ◽  
Institutional Experience ◽  
Transnasal Endoscopic Approach ◽  
Skull Base Lesions

OBJECTIVETransnasal endoscopic transsphenoidal approaches constitute an essential technique for the resection of skull base tumors in adults. However, in the pediatric population, sellar and suprasellar lesions have historically been treated by craniotomy. Transnasal endoscopic approaches are less invasive and thus may be preferable to craniotomy, especially in children. In this case series, the authors present their institutional experience with transnasal endoscopic transsphenoidal approaches for pediatric skull base tumors.METHODSThe authors retrospectively reviewed pediatric patients (age ≤ 18 years) who had undergone transnasal endoscopic transsphenoidal approaches for either biopsy or resection of sellar or suprasellar lesions between 2007 and 2016. All operations were performed jointly by a team of pediatric neurosurgeons and skull base otolaryngologists, except for 8 cases performed by one neurosurgeon.RESULTSThe series included 42 patients between 4 and 18 years old (average 12.5 years) who underwent 51 operations. Headache (45%), visual symptoms (69%), and symptoms related to hormonal abnormalities (71%) were the predominant presenting symptoms. Improvement in preoperative symptoms was seen in 92% of cases. Most patients had craniopharyngiomas (n = 16), followed by pituitary adenomas (n = 12), Rathke cleft cysts (n = 4), germinomas (n = 4), chordomas (n = 2), and other lesion subtypes (n = 4). Lesions ranged from 0.3 to 6.2 cm (median 2.5 cm) in their greatest dimension. Gross-total resection was primarily performed (63% of cases), with 5 subsequent recurrences. Nasoseptal flaps were used in 47% of cases, fat grafts in 37%, and lumbar drains in 47%. CSF space was entered intraoperatively in 15 cases, and postoperative CSF was observed only in lesions with suprasellar extension. There were 8 cases of new hormonal deficits and 3 cases of new cranial nerve deficits. Length of hospital stay ranged from 1 to 61 days (median 5 days). Patients were clinically followed up for a median of 46 months (range 1–120 months), accompanied by a median radiological follow-up period of 45 months (range 3.8–120 months). Most patients (76%) were offered adjuvant therapy.CONCLUSIONSIn this single-institution report of the transnasal endoscopic transsphenoidal approach, the authors demonstrated that this technique is generally safe and effective for different types of pediatric skull base lesions. Favorable effects of surgery were sustained during a follow-up period of 4 years. Further refinement in technology will allow for more widespread use in the pediatric population.

Efficacy of the Endoscopic Triportal Transmaxillary Approach for Treating Lateral Middle Skull Base Tumors: A Technical Note and Retrospective Case Series

2020 ◽  
Vol 142 ◽  
pp. 303-311
Author(s):  
Toru Umehara ◽  
Manabu Kinoshita ◽  
Masaki Hayama ◽  
Takashi Shikina ◽  
Yasunori Fujimoto ◽  
...  
Keyword(s):  
Skull Base ◽  
Case Series ◽  
Technical Note ◽  
Skull Base Tumors ◽  
Retrospective Case ◽  
Retrospective Case Series

Intravitreal Dexamethasone Implant (Ozurdex®) for Exudative Retinal Detachment after Proton Beam Therapy for Choroidal Melanoma

2017 ◽  
Vol 27 (5) ◽  
pp. 596-600 ◽  
Author(s):  
Ariane Malclès ◽  
Anh-Minh Nguyen ◽  
Thibaud Mathis ◽  
Jean-Daniel Grange ◽  
Laurent Kodjikian
Keyword(s):  
Visual Acuity ◽  
Retinal Detachment ◽  
Proton Beam ◽  
Safety Profile ◽  
Choroidal Melanoma ◽  
Case Series ◽  
Proton Beam Therapy ◽  
Exudative Retinal Detachment ◽  
Dexamethasone Implant

Purpose To evaluate the efficacy and safety of intravitreal 0.7-mg dexamethasone implant (DEX-I) (Ozurdex®) in the treatment of extensive exudative retinal detachment (RD) associated with uveal melanoma treated using proton beam therapy (PBT). Methods Data from 10 patients with exudative RD after PBT treated with intravitreal injection of 0.7-mg DEX-I were reviewed retrospectively. The main outcome measures were resolution of exudative RD, visual acuity, and safety profile. Results Mean age was 55.6 years (range 34-85). Mean time between PBT and DEX-I was 12.4 months (range 3-25). Mean follow-up was 9.9 months (range 4-15). Intravitreal Ozurdex® reduced exudative RD in 7 cases (70%) on average 3.1 months after injection with complete resolution of RD in 6 of these (60%). For half of the patients, their level of vision remained stable; the other half experienced a deterioration in visual acuity at the end of follow-up. No adverse effects were observed. Conclusions In this small case series, treatment with intravitreal DEX-I reduced exudative RD in the majority of cases and had an acceptable safety profile.

scholarly journals Tailored Extended Bifrontal Craniotomy for Anterior Skull Base Tumors: Anatomic Description of a Modified Surgical Technique and Case Series

2017 ◽  
Vol 14 (4) ◽  
pp. 386-394 ◽  
Author(s):  
Michael M Safaee ◽  
Michael W McDermott ◽  
Arnau Benet ◽  
Philip V Theodosopoulos
Keyword(s):  
Skull Base ◽  
Frontal Lobe ◽  
Tomographic Reconstruction ◽  
Case Series ◽  
Early Postoperative Period ◽  
Anterior Skull Base ◽  
Skull Base Tumors ◽  
Case Examples ◽  
Computed Tomographic ◽  
Surgical Exposure

Abstract BACKGROUND Open transcranial approaches to the anterior skull base remain an integral component of current skull base practice. Evolution of these and other techniques has resulted in revisions of standard, tried-and-true methods in attempts to improve patient outcomes and cosmesis, while still providing the best combination of surgical exposure and ergonomics. OBJECTIVE To describe a modified approach for midline tumors of the anterior skull base. METHODS We describe the anatomy and techniques of a modified extended bifrontal craniotomy for anterior skull base tumors. Case examples and a postoperative 3-dimensional computed tomographic reconstruction of the craniotomy are provided. RESULTS The technique has been employed with success in 3 tuberculum sellae meningiomas where the anterior limit of the tumor is several centimeters back from the inner table of the frontal bone. The mean distance from the tumor to inner table was 2.8 cm (range 1.3-3.8 cm). Mean tumor dimensions were 3.0 cm (transverse), 3.5 cm (anterior-posterior), and 2.2 cm (craniocaudal). Average operative time was 557 min. No cases had new T2/fluid-attenuated inversion recovery magnetic resonance imaging signal of the inferior frontal lobe to indicate retraction injury. CONCLUSION The tailored extended bifrontal craniotomy for anterior skull base tumors provides adequate access to the anterior cranial fossa and has replaced our standard extended bifrontal approach. Keeping the osteotomy cut lines outside of the orbit reduces orbital swelling and mechanical disruption of conjugate eye movements in the early postoperative period, while allowing for minimal frontal lobe retraction and providing sufficient surgical exposure along the anterior skull base.

Stereotactic proton beam therapy of skull base meningiomas

2001 ◽  
Vol 49 (1) ◽  
pp. 99-105 ◽  
Author(s):  
Frederik J Vernimmen ◽  
Jill K Harris ◽  
Jennifer A Wilson ◽  
Roger Melvill ◽  
B.J Smit ◽  
...  
Keyword(s):  
Skull Base ◽  
Proton Beam ◽  
Proton Beam Therapy ◽  
Skull Base Meningiomas

scholarly journals Radiation Necrosis Following Proton Beam Therapy in the Pediatric Population: a Case Series

Cureus ◽  
2017 ◽  
Author(s):  
Justin Davanzo ◽  
Robert J Greiner ◽  
Mustafa Barbour ◽  
Elias Rizk
Keyword(s):  
Proton Beam ◽  
Radiation Necrosis ◽  
Pediatric Population ◽  
Case Series ◽  
Proton Beam Therapy
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