Neurosurgical review
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Neurosurgical review · Sep 2019
Case ReportsPitfalls of skull base reconstruction in endoscopic endonasal approach.
Various skull base reconstruction techniques have been developed in endoscopic endonasal approach (EEA) for skull base lesions to prevent postoperative cerebrospinal fluid (CSF) leakage. This study was performed to evaluate the efficacy and pitfalls of our method of skull base reconstruction after EEA. A total of 123 patients who underwent EEA (127 surgeries) between October 2014 and May 2017 were reviewed. ⋯ Greater care with regard to postoperative CSF leakage is required in patients with prior EEA with radiotherapy and obesity. In such high-risk patients, initial LD or bed rest may be required to prevent postoperative CSF leakage. It is also important to restrict activities that result in increased intracranial pressure.
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Neurosurgical review · Sep 2019
Intraoperative MRI in transsphenoidal resection of invasive pituitary macroadenomas.
The use of intraoperative MRI (iMRI) increases extent of resection in transsphenoidal pituitary surgery. Microsurgical and endoscopic techniques have been established as equal and standard surgical methods. The object of the current study was to evaluate the additional value of iMRI for resection of invasive pituitary adenomas. ⋯ Intraoperative MRI after maximal safe resection significantly improves the overall extent of resection in invasive pituitary adenomas independent of the surgical technique employed. Simultaneously, iMRI-assisted transsphenoidal surgery results in excellent visual recovery with low-risk profile for surgical complications for both endoscopic as well as microsurgical technique. Endoscopic technique might be related to the lower incidence of new hypopituitarism after surgery.
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Neurosurgical review · Sep 2019
Meta AnalysisCharacteristics and risk factors for proximal junctional kyphosis in adult spinal deformity after correction surgery: a systematic review and meta-analysis.
There are still controversies on characteristics and risk factors for proximal junctional kyphosis (PJK) in adult spinal deformity (ASD) patients. The objective of this study is to explore the characteristics and risk factors for PJK in ASD. A systematic online search in databases including PubMed, EMBASE, Web of Science, and the Cochrane Library was performed to identify eligible studies. ⋯ In conclusion, PJK patients had larger PJA, larger TK, smaller PI-LL, and larger sagittal alignment. Older female ASD patients with low BMD/osteoporosis are more likely to suffer from PJK. We recommend the following: (1) using hooks at UIV; (2) UIV should be chosen above T8, and pelvic fixation should be avoided if possible; (3) ideal correction of sagittal alignment should be performed to prevent the occurrence of PJK.
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Neurosurgical review · Jun 2019
Comparative StudyComparison of radiological and clinical characteristics between blood blister-like aneurysms (BBAs) and non-blister aneurysms at the supraclinoid segment of internal carotid artery.
Blood blister-like aneurysms (BBAs) were considered a therapeutic challenge for both microsurgeons and endovascular therapists. While a great deal of efforts had been put to refining the treatment of BBAs, the diagnostic criteria had not been established yet. In this study, we reviewed data of 43 suspicious, small (< 1 cm), broad-necked aneurysms at supraclinoid segment of internal carotid artery (ICA) in 41 patients who had been treated with microsurgery in our hospital during the past 5 years. ⋯ BBAs and non-blister aneurysms were difficult to differentiate by clinical and radiological features as they share many characteristics in common. Dome/neck ratio < 1 did not guarantee accurate diagnosis of BBAs. A discriminant function incorporating dome/neck ratio and degree of distal angle as factors might increase the accuracy of pre-surgical diagnosis of BBAs.
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Neurosurgical review · Jun 2019
ReviewCould propranolol be beneficial in adult cerebral cavernous malformations?
Surgery is the only therapeutic option for cerebral cavernous malformations (CCM) and is proposed, whenever possible, after haemorrhagic events, neurological symptoms, or epilepsy, radiosurgery being a controversial alternative in some cases. However, there is no treatment for non-accessible lesions, such as brainstem CCM, multiple CCM, or those located in functional areas. ⋯ We herein review the histological, in vitro data and clinical findings that support the idea of propranolol as a potential treatment for CCM. Since one retrospective study has not been conclusive, we support the idea that prospective trials are necessary.