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1.
BMC Pediatr ; 20(1): 77, 2020 02 19.
Artigo em Inglês | MEDLINE | ID: mdl-32075604

RESUMO

BACKGROUND: Spinal epidural hematoma without significant trauma is a rare condition with potentially severe outcome. This case report and systematic review of the literature illustrates the clinical presentation, risk factors, evaluation, treatment and outcomes of spinal epidural hematoma without significant trauma in children. CASE PRESENTATION: We report one case of a 7-year-old girl who developed a neck pain after minor cervical sprain. MRI showed a right posterior epidural hematoma extending from C2/3 to T1. The hematoma was surgically evacuated, and the histopathology showed an arteriovenous malformation. Postoperative MRI showed complete evacuation of the hematoma and no residual vascular malformation. We report a second ASE with idiopathic spinal epidural hematoma of a 4½-year-old boy presenting with neck pain. MRI showed a right-sided latero-posterior subacute spinal epidural hematoma at C3-C5. Owing to the absence of any neurological deficit, the patient was treated conservatively. MRI at 3 months showed complete resolution of the hematoma. CONCLUSIONS: Spinal epidural hematoma without significant trauma in children is a rare condition. It may present with unspecific symptoms. Screening for bleeding diathesis is warranted and neuroradiologic follow-up is essential to rule out vascular malformation. Whereas most children have a favorable outcome, some do not recover, and neurological follow-up is required.


Assuntos
Malformações Arteriovenosas , Hematoma Epidural Espinal , Malformações Arteriovenosas/complicações , Criança , Pré-Escolar , Feminino , Hematoma Epidural Espinal/diagnóstico por imagem , Hematoma Epidural Espinal/etiologia , Humanos , Imageamento por Ressonância Magnética , Masculino , Cervicalgia/etiologia
2.
Cephalalgia ; 39(2): 306-315, 2019 02.
Artigo em Inglês | MEDLINE | ID: mdl-30099952

RESUMO

OBJECTIVE: Spontaneous intracranial hypotension is caused by spinal cerebrospinal fluid leakage. Patients with orthostatic headaches and cerebrospinal fluid leakage show a decrease in optic nerve sheath diameter upon movement from supine to upright position. We hypothesized that the decrease in optic nerve sheath diameter upon gravitational challenge would cease after closure of the leak. METHODS: We included 29 patients with spontaneous intracranial hypotension and refractory symptoms admitted from 2013 to 2016. The systematic workup included: Optic nerve sheath diameter sonography, spinal MRI and dynamic myelography with subsequent CT. Microsurgical sealing of the cerebrospinal fluid leak was the aim in all cases. RESULTS: Of 29 patients with a proven cerebrospinal fluid leak, one declined surgery. A single patient was lost to follow-up. In 27 cases, the cerebrospinal fluid leak was successfully sealed by microsurgery. The width of the optic nerve sheath diameter in supine position increased from 5.08 ± 0.66 mm before to 5.36 ± 0.53 mm after surgery ( p = 0.03). Comparing the response of the optic nerve sheath diameter to gravitational challenge, there was a significant change from before (-0.36 ± 0.32 mm) to after surgery (0.00 ± 0.19 mm, p < 0.01). In parallel, spontaneous intracranial hypotension-related symptoms resolved in 26, decreased in one and persisted in a single patient despite recovery of gait. CONCLUSIONS: The sonographic assessment of the optic nerve sheath diameter with gravitational challenge can distinguish open from closed spinal cerebrospinal fluid fistulas in spontaneous intracranial hypotension patients. A response to the gravitational challenge, that is, no more collapse of the optic nerve sheath while standing up, can be seen after successful treatment and correlates with the resolution of clinical symptoms. Sonography of the optic nerve sheath diameter may be utilized for non-invasive follow-up in spontaneous intracranial hypotension.


Assuntos
Hipotensão Intracraniana/cirurgia , Nervo Óptico/diagnóstico por imagem , Resultado do Tratamento , Adulto , Idoso , Malformações Vasculares do Sistema Nervoso Central/complicações , Vazamento de Líquido Cefalorraquidiano/complicações , Vazamento de Líquido Cefalorraquidiano/cirurgia , Estudos de Coortes , Feminino , Humanos , Hipotensão Intracraniana/etiologia , Masculino , Microcirurgia/métodos , Pessoa de Meia-Idade , Procedimentos Neurocirúrgicos/métodos , Estudos Retrospectivos , Decúbito Dorsal , Ultrassonografia/métodos
3.
Radiology ; 289(3): 766-772, 2018 12.
Artigo em Inglês | MEDLINE | ID: mdl-30226459

RESUMO

Purpose To propose a modified dynamic CT myelographic technique to locate cerebrospinal fluid (CSF) leaks, also known as cryptogenic leaks, in patients with spontaneous intracranial hypotension (SIH) in whom previous imaging did not show the dural breach. Materials and Methods This retrospective analysis included 74 consecutive patients with SIH and a myelographically proven CSF leak who were evaluated between February 2013 and October 2017. In 14 patients, dynamic CT myelography in the prone or lateral position showed the exact leakage point after unsuccessful previous imaging. During image analysis, the first time point showing extrathecal contrast material was defined as the site of dural breach point. Results Mean population age was 44 years (range, 25-65 years [nine women; mean age, 44 years; age range, 25-65 years] [five men; mean age, 46 years; age range, 29-61 years]). All patients had previously undergone spine MRI, conventional dynamic myelography, and CT myelography. Subsequent dynamic CT myelography covered a mean range of seven vertebral levels. The leak was caused by a calcified microspur in 10 patients and by a dural tear at the axilla of a spinal nerve root in the remaining four. The mean volume CT dose index of dynamic CT myelography was 107 mGy (range, 12-246 mGy), and the mean dose-length product was 1347 mGy·cm (range, 550-3750 mGy·cm). Conclusion Dynamic CT myelography is a valuable adjunctive tool with which to identify the precise location of a dural tear when other examinations are unsuccessful. © RSNA, 2018 See also the editorial by Dillon in this issue.


Assuntos
Vazamento de Líquido Cefalorraquidiano/diagnóstico por imagem , Vazamento de Líquido Cefalorraquidiano/etiologia , Hipotensão Intracraniana/complicações , Hipotensão Intracraniana/diagnóstico , Mielografia/métodos , Tomografia Computadorizada por Raios X/métodos , Adulto , Idoso , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos
4.
Acta Neurochir (Wien) ; 160(3): 467-470, 2018 03.
Artigo em Inglês | MEDLINE | ID: mdl-29350292

RESUMO

Idiopathic spinal cord herniation (ISCH) through an anterior dural defect is rare and the cause is uncertain. Recently, through interpreting imaging studies, disc herniation was proposed to be a major cause for ISCH. We describe the case of a 50-year-old woman with progressive myelopathy who was diagnosed with a thoracic spinal cord herniation. Microsurgical exploration revealed an anterior vertical dural defect and a small concomitant disc herniation, occult on the preoperative imaging, which caused the dural defect and led to ISCH. This intraoperative finding corroborates the emerging notion that disc herniation is the underlying cause of ISCH.


Assuntos
Hérnia/diagnóstico por imagem , Deslocamento do Disco Intervertebral/diagnóstico por imagem , Deslocamento do Disco Intervertebral/cirurgia , Microcirurgia , Doenças da Medula Espinal/diagnóstico por imagem , Doenças da Medula Espinal/cirurgia , Dura-Máter/patologia , Feminino , Herniorrafia , Humanos , Deslocamento do Disco Intervertebral/patologia , Imageamento por Ressonância Magnética , Pessoa de Meia-Idade , Doenças da Medula Espinal/patologia , Vértebras Torácicas/diagnóstico por imagem , Vértebras Torácicas/cirurgia
5.
J Neurol Neurosurg Psychiatry ; 87(6): 650-5, 2016 06.
Artigo em Inglês | MEDLINE | ID: mdl-26285586

RESUMO

OBJECTIVE: Spontaneous intracranial hypotension (SIH) is most commonly caused by cerebrospinal fluid (CSF) leakage. Therefore, we hypothesised that patients with orthostatic headache (OH) would show decreased optic nerve sheath diameter (ONSD) during changes from supine to upright position. METHODS: Transorbital B-mode ultrasound was performed employing a high-frequency transducer for ONSD measurements in the supine and upright positions. Absolute values and changes of ONSD from supine to upright were assessed. Ultrasound was performed in 39 SIH patients, 18 with OH and 21 without OH, and in 39 age-matched control subjects. The control group comprised 20 patients admitted for back surgery without headache or any orthostatic symptoms, and 19 healthy controls. RESULTS: In supine position, mean ONSD (±SD) was similar in patients with (5.38±0.91 mm) or without OH (5.48±0.89 mm; p=0.921). However, in upright position, mean ONSD was different between patients with (4.84±0.99 mm) and without OH (5.53±0.99 mm; p=0.044). Furthermore, the change in ONSD from supine to upright position was significantly greater in SIH patients with OH (-0.53±0.34 mm) than in SIH patients without OH (0.05±0.41 mm; p≤0.001) or in control subjects (0.01±0.38 mm; p≤0.001; area under the curve: 0.874 in receiver operating characteristics analysis). CONCLUSIONS: Symptomatic patients with SIH showed a significant decrease of ONSD, as assessed by ultrasound, when changing from the supine to the upright position. Ultrasound assessment of the ONSD in two positions may be a novel, non-invasive tool for the diagnosis and follow-up of SIH and for elucidating the pathophysiology of SIH.


Assuntos
Ecoencefalografia/métodos , Hipotensão Intracraniana/diagnóstico por imagem , Adulto , Idoso , Idoso de 80 Anos ou mais , Vazamento de Líquido Cefalorraquidiano/diagnóstico por imagem , Feminino , Humanos , Hipotensão Ortostática , Masculino , Pessoa de Meia-Idade , Nervo Óptico/diagnóstico por imagem , Órbita/diagnóstico por imagem , Valores de Referência
6.
Rev Med Suisse ; 15(636): 292-294, 2019 Jan 30.
Artigo em Alemão | MEDLINE | ID: mdl-30724516
7.
Oper Neurosurg (Hagerstown) ; 24(3): 268-275, 2023 03 01.
Artigo em Inglês | MEDLINE | ID: mdl-36701551

RESUMO

BACKGROUND: Idiopathic spinal cord herniations (ISCH) are rare defects of the ventromedial or mediolateral dura mater with herniation of the spinal cord through the defect with approximately 350 described cases worldwide. Patients usually become symptomatic with motor or sensory neurological deficits and gait disturbances. OBJECTIVE: To describe characteristic symptoms and clinical findings and to evaluate the postoperative course and outcomes of ISCH. METHODS: We present a single-center data analysis of a case series of 11 consecutive patients who were diagnosed with ISCH and underwent surgery in our department between 2009 and 2021. RESULTS: All herniations were located in the thoracic spine between T2 and T9. In most cases, gait ataxia and dysesthesia led to further workup and subsequently to the diagnosis of ISCH. A "far-enough" posterior-lateral surgical approach, hemilaminectomy or laminectomy with a transdural approach, was performed under intraoperative neurophysiological monitoring which was followed by adhesiolysis, repositioning of the spinal cord and sealing using a dura patch. After surgery, clinical symptoms improved in 9 of 11 patients (81.8%), while only 1 patient experienced deterioration of symptoms (9.1%) and 1 patient remained equal (9.1%). The median preoperative McCormick grade was 3 (±0.70), while the median postoperative grade was 2 (±0.98) ( P = .0047). CONCLUSION: In our case series of ISCH, we found that in most patients, neurological deficits improved postoperatively. This indicates that surgery in ISCH should not be delayed in symptomatic patients.


Assuntos
Doenças da Medula Espinal , Humanos , Doenças da Medula Espinal/diagnóstico por imagem , Doenças da Medula Espinal/cirurgia , Hérnia , Laminectomia , Vértebras Torácicas/cirurgia
8.
J Neurol Surg A Cent Eur Neurosurg ; 83(6): 511-515, 2022 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-34897627

RESUMO

BACKGROUND: Surgery for intra-/extraforaminal disk herniations (IEDH) is technically demanding due to the hidden location of the compressed nerve root section. Ipsilateral approaches (medial and lateral) are accompanied by extended resection of the facet joint and inadequate visualization of the pathology, especially at the L5-S1 level. METHODS: We describe a microsurgical interlaminar contralateral approach (MICA) suitable for IEDH at the lumbosacral junction that can also be used at L4-L5 and L3-L4. CONCLUSION: The MICA provides access and sufficient intraforaminal visualization for IEDH in the lumbosacral region without resection of stability-relevant structures or manipulation of the nerve root ganglion.


Assuntos
Deslocamento do Disco Intervertebral , Humanos , Deslocamento do Disco Intervertebral/diagnóstico por imagem , Deslocamento do Disco Intervertebral/cirurgia , Vértebras Lombares/cirurgia , Vértebras Lombares/patologia , Região Lombossacral/cirurgia , Região Lombossacral/patologia , Procedimentos Neurocirúrgicos
9.
Brain Spine ; 2: 100861, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36248123

RESUMO

Introduction: Surgical management of isthmic spondylolisthesis is controversial and reports on anterior approaches in the literature are scarce. Research question: To evaluate the safety and efficacy of stand-alone anterior lumbar interbody fusion (ALIF) in patients with symptomatic low-grade L5-S1 isthmic spondylolisthesis. Material and methods: All adult patients with isthmic spondylolisthesis of the lumbosacral junction treated in a single institution between 2008 and 2019 with stand-alone ALIF were screened. A titan cage was inserted at L5-S1 with vertebral anchoring screws. Prospectively collected surgical, clinical and radiographic data were analyzed retrospectively. Results: 34 patients (19 men, 15 women, mean age 52.5 â€‹± â€‹11.5 years) with a mean follow-up of 3.2 (±2.5) years were analyzed. 91.2% (n â€‹= â€‹31) of patients had a low-grade spondylolisthesis and 8.8% (n â€‹= â€‹3) grade III according to Meyerding classification. Mean COMI and ODI scores improved significantly from 6.9 (±1.5) and 35.5 (±13.0) to 2.0 (±2.5) and 10.2 (±13.0), respectively after one year, and to 1.7 (±2.5) and 8.2 (±9.6), respectively, after two years. The COMI and ODI scores improved in 86.4% and 80%, respectively, after one year and 92.9% of patients after two years by at least the minimal clinically important difference. No intraoperative complications were recorded. 8.8% (n â€‹= â€‹3) of patients needed a reoperation. Discussion and conclusion: After stand-alone ALIF for symptomatic isthmic spondylolisthesis, the patients improved clinically important after one and two years. Stand-alone ALIF is a safe and effective surgical treatment option for low-grade isthmic spondylolisthesis.

10.
J Neurosurg ; 136(5): 1485-1494, 2022 May 01.
Artigo em Inglês | MEDLINE | ID: mdl-34624865

RESUMO

OBJECTIVE: CSF leaks are common complications of spinal and cranial surgeries. Several dural grafts and suture techniques are available to achieve watertight dural closure, but the effectiveness of these techniques remains unclear. The authors developed a standardized in vitro model to test available grafts and suture techniques alone or in combination to find the technique with the most watertight dural closure. METHODS: A fluid chamber with a dural fixation device, infusion pump, pressure gauge, and porcine pericardium as a dural equivalent was assembled to provide the reusable device for testing. The authors performed dural closure in 4 different fashions, as follows: A) using running versus simple interrupted suture technique and different suture materials to close a 3-cm incision; B) selecting commonly used sealants and dural patches in combination with a running suture; C) performing duraplasty (1.5 × 1.5-cm square defect) with different dural substitutes in a stand-alone fashion; and D) performing duraplasty with different dural substitutes in a double-layer fashion. Each technique was tested 6 times. The hydrostatic burst pressure (BP) was measured and compared using the Kruskal-Wallis test or the Mann-Whitney U-test. Values are reported as mean ± SD. RESULTS: There was no significant difference between the running and simple interrupted suture technique (p = 0.79). Adding a patch or sealant to a suture resulted in a 1.7- to 14-fold higher BP compared to solitary suture closure (36.2 ± 24.27 cm H2O and 4.58 ± 1.41 cm H2O, respectively; p < 0.001). The highest BP was achieved by adding DuraSeal or TachoSil (82.33 ± 12.72 cm H2O and 74.17 ± 12.64 cm H2O, respectively). For closing a square defect, using a double-layer duraplasty significantly increased BP by a factor of 4-12 compared to a single-layer duraplasty (31.71 ± 12.62 cm H2O vs 4.19 ± 0.88 cm H2O, respectively; p < 0.001). The highest BP was achieved with the combination of Lyomesh and TachoSil (43.67 ± 11.45 cm H2O). CONCLUSIONS: A standardized in vitro model helps to objectify the watertightness of dural closure. It allows testing of sutures and dural grafts alone or in combination. In the authors' testing, a running 6-0 monofilament polypropylene suture combined with DuraSeal or TachoSil was the technique achieving the highest BP. For the duraplasty of square defects, the double-layer technique showed the highest efficacy.

11.
Clin Neuroradiol ; 32(2): 529-536, 2022 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-34170368

RESUMO

PURPOSE: To assess early renal pelvis opacification on postmyelography computed tomography (CT) as a marker for cerebrospinal fluid (CSF) loss in patients with spontaneous intracranial hypotension (SIH). METHODS: The SIH patients referred to our hospital between January 2012 and May 2018 were retrospectively reviewed and divided into 2 groups based on the presence of spinal longitudinal extrathecal CSF collection (SLEC): (1) SLEC(+) with, and (2) SLEC(-) without proof of SLEC on multimodal imaging. Non-SIH patients (n = 20) undergoing CT myelography served as controls. The renal pelvis density on postmyelography CT was measured in all patients. Mean difference in renal pelvis density between the groups was calculated. RESULTS: In total, 111 SIH patients (mean age 48 ± 13 years; 60% female) were included, 71 (64%) SLEC(+) and 40 (36%) SLEC(-). The adjusted renal pelvis density in the SLEC(+), SLEC(-), and the non-SIH group was 108 Hounsfield unit (HU), 83 HU, and 32 HU, respectively, resulting in a significant difference between SLEC(+) vs. control group 1 (75 HU, p < 0.001), SLEC(-) vs. control group 1 (50 HU, p < 0.001), and a tendency for higher density in SLEC(+) than SLEC(-) (25 HU, p = 0.16). CONCLUSION: Increased renal pelvis opacification on postmyelography CT was observed in SIH patients, even in the absence of a CSF leak or a CSF venous fistula, when compared to non-SIH patients. Although the provenance of early renal opacification in SLEC (-) SIH patients remains unclear, our results suggest that it may be a surrogate for increased spinal CSF resorption via spinal arachnoid granulations and along spinal nerve sheaths occult to direct imaging.


Assuntos
Hipotensão Intracraniana , Adulto , Feminino , Humanos , Hipotensão Intracraniana/diagnóstico por imagem , Pelve Renal , Imageamento por Ressonância Magnética/métodos , Masculino , Pessoa de Meia-Idade , Mielografia/métodos , Estudos Retrospectivos , Tomografia Computadorizada por Raios X/métodos
12.
J Neurooncol ; 103(3): 765-70, 2011 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-20957407

RESUMO

Gliosarcoma is a relatively rare and highly malignant brain tumor consisting of both a glioblastoma and a mesenchymal component. Because of the natural barrier of the dura mater, that prevents intra or extradural neoplasm dissemination, cases of penetration of the dura and cranium by gliosarcomas without previous surgery or radiation are very rarely reported. We report an unusual case of gliosarcoma that involved the temporal skull base and the dura without antecedent radiation or surgery, although the lesion traversed the dura without radiologic or gross interruption of the dura. Remarkable in our case is the initial integrity of cerebral parenchyma. Follow-up revealed a tumorous infiltration of the temporal lobe almost one year after initial diagnosis. Thus the origin of the gliosarcoma in our case seemed to be extradural in the temporal skull base. Furthermore, this report demonstrates that extensive multi-modality treatment might be effective in patients with gliosarcomas and poor prognostic factors, for example unmethylated MGMT status.


Assuntos
Osso e Ossos/fisiopatologia , Neoplasias Encefálicas/patologia , Gliossarcoma/patologia , Neoplasias Encefálicas/fisiopatologia , Neoplasias Encefálicas/cirurgia , Gliossarcoma/fisiopatologia , Gliossarcoma/cirurgia , Humanos , Imageamento por Ressonância Magnética , Masculino , Pessoa de Meia-Idade , Procedimentos Neurocirúrgicos/métodos , Tomografia Computadorizada por Raios X , Resultado do Tratamento
14.
Clin Imaging ; 80: 377-381, 2021 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-34517304

RESUMO

Spontaneous intracranial hypotension (SIH) is an important secondary cause of a persistent headache syndrome, classically presenting as sudden onset debilitating positional headaches related to reduced intracranial cerebrospinal fluid (CSF) volume. Current understanding of SIH pathogenesis recognizes three underlying etiologies: dural tear, meningeal diverticulum, and CSF-venous fistula, with a fourth broad category of indeterminate/unknown etiologies. Post-dural puncture headache (PDPH) is a well-known and common complication of dural puncture, typically remitting spontaneously within two weeks of onset or with autologous epidural blood patch, though with some patients developing complex and difficult to manage chronic PDPH. Herein, we present a case of chronic PDPH resulting in SIH symptomatology secondary to a post-dural puncture pseudomeningocele, or "arachnoid bleb," successfully treated with curative surgical intervention. Increasing awareness of additional potential etiologies of SIH symptomatology will allow for improved detection for targeted definitive therapy, ultimately improving patient outcomes including quality of life in this debilitating and difficult to manage secondary headache syndrome.


Assuntos
Fístula , Hipotensão Intracraniana , Humanos , Aracnoide-Máter , Placa de Sangue Epidural , Hipotensão Intracraniana/diagnóstico por imagem , Hipotensão Intracraniana/etiologia , Punções , Qualidade de Vida
15.
J Neurosurg Spine ; 35(4): 516-526, 2021 Jul 30.
Artigo em Inglês | MEDLINE | ID: mdl-34330089

RESUMO

The authors present an illustrative technical note on microsurgical resection of ventrolateral completely ossified spinal meningiomas (OSMs) and a literature review of the surgical management of calcified spinal meningiomas or OSMs. These tumors are surgically demanding due to their solid consistency, especially when in a ventrolateral location with dislocation of the spinal cord. A challenging case with significant thoracic cord compression and displacement is described. Due to the firm consistency and the ventrolateral localization of the meningioma, a piecemeal resection was necessary. This could have resulted in a free-floating tumor remnant adherent to the spinal cord, impeding safe tumor resection. To avoid such a remnant, an anchoring burr hole was drilled at the border between the spinal cord and the adamantine tumor mass. Then, a microdissector was placed within the anchoring burr hole and the tumor was gently pulled laterally while drilling away the medial parts of the ossified tumor. This procedure was repeated until separation of the tumor from the spinal cord was possible and a gross-total resection (Simpson grade II) was manageable. Throughout the procedure, continuous intraoperative neurophysiological monitoring was performed.


Assuntos
Neoplasias Meníngeas/cirurgia , Meningioma/cirurgia , Compressão da Medula Espinal/cirurgia , Neoplasias da Medula Espinal/cirurgia , Humanos , Procedimentos Neurocirúrgicos/métodos , Coluna Vertebral/cirurgia , Resultado do Tratamento
16.
Clin Neuroradiol ; 31(3): 633-641, 2021 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-32845353

RESUMO

BACKGROUND: Spinal imaging is essential to identify and localize cerebrospinal fluid (CSF) leaks in spontaneous intracranial hypotension (SIH) patients when targeted treatment is necessary. PURPOSE: Provide an in-depth presentation of the conventional dynamic myelography (CDM) technique for localizing spinal CSF leaks in SIH patients. MATERIAL AND METHODS: Consecutive SIH patients with a CSF leak confirmed on CDM and postmyelography computed tomography (CT) investigated at our institution between 2013 and 2019 were retrospectively analyzed. Intraoperative reports were reviewed to confirm the accuracy of CDM. RESULTS: In total, 62 patients (mean age 45 years) were included; 48 with a ventral dural tear, 12 with a meningeal diverticulum, and in 2 patients positive for spinal longitudinal extradural CSF collection the site remained unclear. The leak was identified during the first and the second CDM in 43 and 17 patients, respectively. The use of CDM correctly identified the site of the CSF leak in all but one patient undergoing surgical closure (45/46, 98%). The mean fluoroscopy time was 7.8 min (range 1.8-14.4 min) with a radiation dose for a single examination of 310 mGy (range 28-1237 mGy). CONCLUSION: The CDM procedure has a high accuracy for spinal CSF leak localization including dural tears and spinal nerve diverticula. It is the technique with the highest temporal resolution, is robust to breathing artifacts, allows great flexibility regarding patient positioning, compares favorably to other dynamic examinations with respect to the radiation dose and does not require general anesthesia. For CSF venous fistulas, however, other dynamic examinations, such as digital subtraction myelography, seem more appropriate.


Assuntos
Hipotensão Intracraniana , Mielografia , Vazamento de Líquido Cefalorraquidiano/diagnóstico por imagem , Humanos , Hipotensão Intracraniana/diagnóstico por imagem , Pessoa de Meia-Idade , Estudos Retrospectivos , Coluna Vertebral
17.
J Surg Oncol ; 101(5): 436-41, 2010 Apr 01.
Artigo em Inglês | MEDLINE | ID: mdl-20191603

RESUMO

BACKGROUND AND OBJECTIVES: To report on the value of intraoperative magnetic resonance imaging (iMRI) in the neurosurgical treatment of cerebral metastases (CM). METHODS: We performed a total of 204 surgical procedures with the use of a mobile ultra-low-field iMRI-unit. Of these, there were 12 craniotomies and 2 minimal-invasive procedures for CM, and 63 craniotomies for glioblastoma (GBM). RESULTS: On intraoperative imaging, all tumors could be localized and targeted with the help of the integrated neuronavigation system. Intraoperative imaging resulted in continued tumor resection due to unexpected residual tumor tissue in 13 patients harboring GBM (20.6%), but no patient with a CM (0%). In two patients with cystic CM, iMRI helped to achieve complete collapse of cysts by means of stereotactic aspiration, relieving mass effect and allowing for adjuvant radiotherapy. All patients subsequently received adjuvant treatment according to clinical protocols. CONCLUSION: Surgical resection represents one of several treatment modalities in metastatic brain disease. iMRI is useful for neuronavigation and resection control and as an adjunct in minimal-invasive procedures in patients with CM; however, its exact value is yet to be determined by prospective randomized trials.


Assuntos
Neoplasias Encefálicas/secundário , Neoplasias Encefálicas/cirurgia , Imageamento por Ressonância Magnética/métodos , Adolescente , Adulto , Idoso , Neoplasias Encefálicas/mortalidade , Criança , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Monitorização Intraoperatória
18.
Acta Neurochir (Wien) ; 152(6): 1061-3; discussion 1063, 2010 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-19834641

RESUMO

PURPOSE: We present the case of a 33-year-old female complaining of recurrent pain and sensory disturbance in both legs, 3 years after the removal of a schwannoma at the level of L2/3. METHODS: Magnetic resonance imaging showed two lesions at the site of the previous operation. Assuming tumour recurrence, the patient was referred for surgery. RESULTS: Intraoperatively, both an intradural neuroma and a schwannoma were found. Histopathological assessment confirmed the diagnosis of both coexisting entities. CONCLUSIONS: Neuroma should be considered in the differential diagnosis of spinal lesions, particularly in the assumption of recurrence.


Assuntos
Cauda Equina/cirurgia , Neoplasias Primárias Múltiplas/cirurgia , Neurilemoma/cirurgia , Neuroma/cirurgia , Neoplasias do Sistema Nervoso Periférico/cirurgia , Complicações Pós-Operatórias/cirurgia , Neoplasias da Medula Espinal/cirurgia , Adulto , Cauda Equina/patologia , Diagnóstico Diferencial , Feminino , Humanos , Vértebras Lombares , Imageamento por Ressonância Magnética , Microcirurgia , Recidiva Local de Neoplasia/diagnóstico , Recidiva Local de Neoplasia/cirurgia , Neoplasia Residual/diagnóstico , Neoplasia Residual/cirurgia , Neoplasias Primárias Múltiplas/diagnóstico , Neoplasias Primárias Múltiplas/patologia , Neurilemoma/diagnóstico , Neurilemoma/patologia , Neuroma/diagnóstico , Neuroma/patologia , Neoplasias do Sistema Nervoso Periférico/diagnóstico , Neoplasias do Sistema Nervoso Periférico/patologia , Complicações Pós-Operatórias/diagnóstico , Complicações Pós-Operatórias/patologia , Reoperação , Neoplasias da Medula Espinal/diagnóstico , Neoplasias da Medula Espinal/patologia
19.
J Neurosurg ; 134(3): 1113-1121, 2020 Apr 24.
Artigo em Inglês | MEDLINE | ID: mdl-32330879

RESUMO

OBJECTIVE: With global aging, elective craniotomies are increasingly being performed in elderly patients. There is a paucity of prospective studies evaluating the impact of these procedures on the geriatric population. The goal of this study was to assess the safety of elective craniotomies for elderly patients in modern neurosurgery. METHODS: For this cohort study, adult patients, who underwent elective craniotomies between November 1, 2011, and October 31, 2018, were allocated to 3 age groups (group 1, < 65 years [n = 1008], group 2, ≥ 65 to < 75 [n = 315], and group 3, ≥ 75 [n = 129]). Primary outcome was the 30-day mortality after craniotomy. Secondary outcomes included rate of delayed extubation (> 1 hour), need for emergency head CT scan and reoperation within 48 hours after surgery, length of postoperative intensive or intermediate care unit stay, hospital length of stay (LOS), and rate of discharge to home. Adjustment for American Society of Anesthesiologists Physical Status (ASA PS) class, estimated blood loss, and duration of surgery were analyzed as a comparison using multiple logistic regression. For significant differences a post hoc analysis was performed. RESULTS: In total, 1452 patients (mean age 55.4 ± 14.7 years) were included. The overall mortality rate was 0.55% (n = 8), with no significant differences between groups (group 1: 0.5% [95% binominal CI 0.2%, 1.2%]; group 2: 0.3% [95% binominal CI 0.0%, 1.7%]; group 3: 1.6% [95% binominal CI 0.2%, 5.5%]). Deceased patients had a significantly higher ASA PS class (2.88 ± 0.35 vs 2.42 ± 0.62; difference 0.46 [95% CI 0.03, 0.89]; p = 0.036) and increased estimated blood loss (1444 ± 1973 ml vs 436 ± 545 ml [95% CI 618, 1398]; p <0.001). Significant differences were found in the rate of postoperative head CT scans (group 1: 6.65% [n = 67], group 2: 7.30% [n = 23], group 3: 15.50% [n = 20]; p = 0.006), LOS (group 1: median 5 days [IQR 4; 7 days], group 2: 5 days [IQR 4; 7 days], and group 3: 7 days [5; 9 days]; p = 0.001), and rate of discharge to home (group 1: 79.0% [n = 796], group 2: 72.0% [n = 227], and group 3: 44.2% [n = 57]; p < 0.001). CONCLUSIONS: Mortality following elective craniotomy was low in all age groups. Today, elective craniotomy for well-selected patients is safe, and for elderly patients, too. Elderly patients are more dependent on discharge to other hospitals and postacute care facilities after elective craniotomy. Clinical trial registration no.: NCT01987648 (clinicaltrials.gov).


Assuntos
Craniotomia/efeitos adversos , Procedimentos Cirúrgicos Eletivos/efeitos adversos , Procedimentos Neurocirúrgicos/efeitos adversos , Fatores Etários , Idoso , Idoso de 80 Anos ou mais , Extubação , Perda Sanguínea Cirúrgica , Estudos de Coortes , Craniotomia/mortalidade , Cuidados Críticos/estatística & dados numéricos , Procedimentos Cirúrgicos Eletivos/mortalidade , Feminino , Cabeça/diagnóstico por imagem , Humanos , Tempo de Internação , Masculino , Pessoa de Meia-Idade , Procedimentos Neurocirúrgicos/mortalidade , Complicações Pós-Operatórias/epidemiologia , Complicações Pós-Operatórias/mortalidade , Estudos Prospectivos , Reoperação/estatística & dados numéricos , Tomografia Computadorizada por Raios X , Resultado do Tratamento
20.
J Neurol Surg A Cent Eur Neurosurg ; 80(1): 49-52, 2019 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-29890538

RESUMO

A 36-year-old man was diagnosed with Langerhans cell histiocytosis (LCH) of the cervical spine with a unifocal expansive osteolytic lesion of C4. The surgical management with a 2-year follow-up and a review of the literature on LCH of the cervical spine are presented. Although a rare condition, LCH is an important differential diagnosis of any osteolytic lesion in the cervical spine with localized pain in a young adult patient. Review of the literature suggests a higher prevalence of LCH lesions affecting the cervical spine as compared with the thoracic or lumbar spine than historically reported.


Assuntos
Vértebras Cervicais , Histiocitose de Células de Langerhans/diagnóstico , Osteólise/diagnóstico , Adulto , Diagnóstico Diferencial , Histiocitose de Células de Langerhans/complicações , Histiocitose de Células de Langerhans/cirurgia , Humanos , Masculino , Cervicalgia/diagnóstico , Cervicalgia/etiologia , Osteólise/etiologia , Osteólise/cirurgia
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