Treatment-related morbidity and the management of pediatric craniopharyngioma

Object Craniopharyngiomas are benign tumors but their close anatomical relationship with critical neurological, endocrine, and vascular structures makes gross-total resection (GTR) with minimal morbidity difficult to achieve. Currently, there is controversy regarding the extent, timing, and modality of treatment for pediatric craniopharyngioma. Methods The authors performed a systematic review of the published literature on pediatric craniopharyngioma to determine patterns of clinical practice and the reported outcomes of standard treatment strategies. This yielded 109 studies, which contained data describing extent of resection for a total of 531 patients. Differences in outcome were examined based upon extent of resection and choice of radiation treatment. Results Gross-total resection was associated with increased rates of new endocrine dysfunction (OR 5.4, p < 0.001), panhypopituitarism (OR 7.8, p = 0.006), and new neurological deficits (OR 9.9, p = 0.03) compared with biopsy procedures. Subtotal resection (STR) was not associated with an increased rate of new neurological deficits. Gross-total was associated with increased rates of diabetes insipidus (OR 7.7, p = 0.05) compared with the combination of STR and radiotherapy (RT). The addition of RT to STR was associated with increased rates of panhypopituitarism (OR 9.9, p = 0.01) but otherwise similar rates of morbidities. Conclusions Although subject to the limitations of a literature review, this report suggests that GTR is associated with increased rates of endocrinopathies compared with STR + RT, and this should be considered when planning goals of surgery.

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Profound hearing loss following surgery in pediatric patients with posterior fossa low-grade glioma

Neuro-Oncology Practice ◽

10.1093/nop/npx025 ◽

2017 ◽

Vol 5 (2) ◽

pp. 96-103 ◽

Cited By ~ 1

Author(s):

Yahya Ghazwani ◽

Ibrahim Qaddoumi ◽

Johnnie K Bass ◽

Shengjie Wu ◽

Jason Chiang ◽

...

Keyword(s):

Hearing Loss ◽

Posterior Fossa ◽

Extent Of Resection ◽

Tumor Location ◽

Low Grade Glioma ◽

Gross Total Resection ◽

Subtotal Resection ◽

Low Grade ◽

Total Resection ◽

Profound Hearing Loss

Abstract Background Hearing loss may occur in patients with posterior fossa low-grade glioma who undergo surgery. Methods We retrospectively reviewed 217 patients with posterior fossa low-grade glioma, including 115 for whom results of hearing tests performed after surgery and before chemotherapy or radiation therapy were available. We explored the association of UHL with age at diagnosis, sex, race, tumor location, extent of resection, posterior fossa syndrome, ventriculoperitoneal shunt placement, and histology. Results Of the 115 patients, 15 (13.0%: 11 male, 6 black, 8 white, 1 multiracial; median age 7 years [range, 1.3–17.2 years]) had profound UHL after surgery alone or before receiving ototoxic therapy. Median age at tumor diagnosis was 6.8 years (range, 0.7–14.1 years), and median age at surgery was 6.8 years (range, 0.7–14.1 years). Patients with UHL had pathology characteristic of pilocytic astrocytoma (n = 10), ganglioglioma (n = 4), or low-grade astrocytoma (n = 1). Of these 15 patients, 4 underwent biopsy, 1 underwent gross total resection, 1 underwent near-total resection, and 9 underwent subtotal resection. UHL was more frequent in black patients than in white patients (OR 7.3, P = .007) and less frequent in patients who underwent gross total resection or near-total resection than in those who underwent subtotal resection (OR 0.11, P = .02). Conclusions Children undergoing surgery for posterior fossa low-grade glioma are at risk for UHL, which may be related to race or extent of resection. These patients should receive postoperative audiologic testing, as earlier intervention may improve outcomes.

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Factors affecting outcome following treatment of patients with cavernous sinus meningiomas

Journal of Neurosurgery ◽

10.3171/2010.3.jns091807 ◽

2010 ◽

Vol 113 (5) ◽

pp. 1087-1092 ◽

Cited By ~ 43

Author(s):

Michael E. Sughrue ◽

Martin J. Rutkowski ◽

Derick Aranda ◽

Igor J. Barani ◽

Michael W. McDermott ◽

...

Keyword(s):

Cavernous Sinus ◽

Postoperative Radiotherapy ◽

Meta Analysis ◽

Survival Rates ◽

Extent Of Resection ◽

Gross Total Resection ◽

Cranial Neuropathy ◽

Tumor Control ◽

Subtotal Resection ◽

Total Resection

Object Although there is a considerable volume of literature available on the treatment of patients with cavernous sinus meningiomas (CSMs), most of the data regarding tumor control and survival come from case studies or single-institution series. The authors performed a meta-analysis of reported tumor control and survival rates of patients described in the published literature, with an emphasis on specific prognostic factors. Methods The authors systematically analyzed the published literature and found more than 3000 patients treated for CSMs. Separate meta-analyses were performed to calculate pooled rates of recurrence and cranial neuropathy after 1) gross-total resection, 2) subtotal resection without adjuvant postoperative radiotherapy or radiosurgery, and 3) stereotactic radiosurgery (SRS) alone. Results were expressed as pooled proportions, and random-effects models were used to incorporate any heterogeneity present to generate a pooled proportion. Individual studies were weighted using the inverse variance method, and 95% CIs for each group were calculated from the pooled proportions. Results A total of 2065 nonduplicated patients treated for CSM met inclusion criteria for the analysis. Comparisons of the 95% CIs for recurrence of these 3 cohorts revealed that SRS-treated patients experienced improved rates of recurrence (3.2% [95% CI 1.9–4.5%]) compared with either gross-total resection (11.8% [95% CI 7.4–16.1%]) or subtotal resection alone (11.1% [95% CI 6.6–15.7%]) (p < 0.01). The authors found that the pooled mixed-effects rate of cranial neuropathy was markedly higher in patients undergoing resection (59.6% [95% CI 50.3–67.5%]) than for those undergoing SRS alone (25.7% [95% CI 11.5–38.9%]) (p < 0.05). Conclusions Radiosurgery provided improved rates of tumor control compared with surgery alone, regardless of the subjective extent of resection.

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Individualized surgical strategies for Rathke cleft cyst based on cyst location

Journal of Neurosurgery ◽

10.3171/2013.8.jns13777 ◽

2013 ◽

Vol 119 (6) ◽

pp. 1437-1446 ◽

Cited By ~ 9

Author(s):

Jun Fan ◽

Yuping Peng ◽

Songtao Qi ◽

Xi-an Zhang ◽

Binghui Qiu ◽

...

Keyword(s):

Extent Of Resection ◽

Gross Total Resection ◽

Surgical Approaches ◽

Subtotal Resection ◽

Total Resection ◽

Surgical Strategies ◽

Minimal Invasiveness ◽

Rathke Cleft Cyst ◽

Csf Leakage ◽

Keyhole Craniotomy

Object An assessment regarding both surgical approaches and the extent of resection for Rathke cleft cysts (RCCs) based on their locations has not been reported. The aim of this study was to report the results of a large series of surgically treated patients with RCCs and to evaluate the feasibility of individualized surgical strategies for different RCCs. Methods We retrospectively reviewed 87 cases involving patients with RCCs (16 intrasellar, 50 intra- and suprasellar, and 21 purely suprasellar lesions). Forty-nine patients were treated via a transsphenoidal (TS) approach, and 38 were treated via a transcranial (TC) approach (traditional craniotomy in 21 cases and supraorbital keyhole craniotomy in 17). The extent of resection was classified as gross-total resection (GTR) or subtotal resection (STR) of the cyst wall. Patients were thus divided into 3 groups according to the approach selected and the extent of resection: TS/STR (n = 49), TC/STR (n = 23), and TC/GTR (n = 15). Results Preoperative headaches, visual dysfunction, hypopituitarism, and diabetes insipidus (DI) resolved in 85%, 95%, 55%, and 65% of patients, respectively. These rates did not differ significantly among the 3 groups. Overall, complications occurred in 8% of patients in TS/STR group, 9% in TC/STR group, and 47% in TC/GTR group, respectively (p = 0.002). Cerebrospinal fluid (CSF) leakage (3%), new hypopituitarism (9%), and DI (6%) were observed after surgery. All CSF leaks occurred in the endonasal group, while the TC/GTR group showed a higher rate of postoperative hypopituitarism (p = 0.7 and p < 0.001, respectively). It should be particularly noted that preoperative hypopituitarism and DI returned to normal, respectively, in 100% and 83% of patients who underwent supraorbital surgery, and with the exception of 1 patient who had transient postoperative DI, there were no complications in patients treated with supraorbital surgery. Kaplan-Meier 3-year recurrence-free rates were 84%, 87%, and 86% in the TS/STR, TC/STR, and TC/GTR groups, respectively (p = 0.9). Conclusions It is reasonable to adopt individualized surgical strategies for RCCs based on cyst location. Gross-total resection does not appear to reduce the recurrence rate but increase the risk of postoperative complications. The endonasal approach seems more appropriate for primarily intrasellar RCCs, while the craniotomy is recommended for purely or mainly suprasellar cysts. The supraorbital route appears to be preferred over traditional craniotomy for its minimal invasiveness and favorable outcomes. The endoscopic technique is helpful for either endonasal or supraorbital surgery.

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Endoscopic endonasal surgery for nonadenomatous, nonmeningeal pathology involving the cavernous sinus

Journal of Neurosurgery ◽

10.3171/2015.8.jns15275 ◽

2017 ◽

Vol 126 (3) ◽

pp. 880-888 ◽

Cited By ~ 7

Author(s):

Aikaterini Patrona ◽

Kunal S. Patel ◽

Evan D. Bander ◽

Alpesh Mehta ◽

Apostolos John Tsiouris ◽

...

Keyword(s):

Cavernous Sinus ◽

Pituitary Adenomas ◽

Extent Of Resection ◽

Gross Total Resection ◽

Tumor Board ◽

Benign Tumors ◽

Total Resection ◽

Cranial Neuropathies ◽

The Mean ◽

Underlying Pathology

OBJECTIVE Surgery within the cavernous sinus (CS) remains a controversial topic because of the delicate and complex anatomy. The risk also varies with tumor consistency. Softer tumors such as pituitary adenomas are more likely to be surgically treated, while firm tumors such as meningiomas are often treated with radiosurgery. However, a wide range of pathologies that can involve the CS are amenable to surgery. The authors describe and analyze their results using endonasal endoscopic “medial-to-lateral” approaches for nonadenomatous, nonmeningeal tumors, in relation to the degree of invasion within the CS. METHODS A prospectively acquired database of consecutive endoscopic approaches for tumors with verified intraoperative CS invasion was reviewed. Pituitary adenomas and meningiomas were excluded. Degree of invasion of the CS was classified using the Knosp-Steiner (KS) grading system as well as the percentage of cavernous carotid artery (CCA) encasement. Extent of resection of the entire tumor and of the CS component was assessed by independent neuroradiologists using volumetric measurements of the pre- and postoperative MRI studies. Demographic data and complications were noted. RESULTS Fifteen patients (mean age 51.1 years who received endoscopic surgery between 2007 and 2013 met the selection criteria. There were 11 malignant tumors, including chordoma, chondrosarcoma, hemangiopericytoma, lymphoma, and metastatic cancer, and 4 benign tumors, including 3 cavernous hemangiomas and 1 dermoid. All cases were discussed before treatment in a tumor board. Adjuvant treatment options included chemotherapy and radiotherapy. The mean pre- and postoperative tumor volumes were 12.74 ml and 3.86 ml. Gross-total resection (GTR; ie, resection greater than 95%) was the goal in 13 cases and was achieved in 6 patients (46%) while in addition 5 patients had a greater than 80% resection. Gross-total resection in the CS was accomplished in 55% of the tumors with KS Grades 1–2 and in 16.6% of the tumors with KS grades 3–4, respectively. Likewise, GTR was accomplished in 55% of the tumors with CCA encasement under 75% and in 14.3% of the lesions with CCA encasement over 75%, irrespective of tumor volume and underlying pathology. There were 18 preexisting cranial neuropathies involving cranial nerves III–VI, of which 9 fully resolved, 4 improved, and 3 remained unchanged; 2 of these worsened with tumor recurrence. Surgical complications included 1 transient new cranial nerve VI palsy associated with Horner's syndrome and 1 case of panhypopituitarism. There were no postoperative CSF leaks and no infections. The mean extended follow-up was 34.4 months. CONCLUSIONS Endonasal endoscopic approaches can play a role in the management of nonmeningeal, nonadenomatous tumors invading the CS, either through biopsy, debulking, or GTR. An advantage of this method is the relief of preexisting cranial neuropathies with low risk for new neurological deficit. Extent of resection within the CS varies with KS grade and degree of carotid encasement irrespective of the underlying pathology. The goals of surgery should be clearly established preoperatively in consultation with radiation and medical oncologists.

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Pituitary surgery and volumetric assessment of extent of resection: a paradigm shift in the use of intraoperative magnetic resonance imaging

Neurosurgical FOCUS ◽

10.3171/2015.12.focus15564 ◽

2016 ◽

Vol 40 (3) ◽

pp. E17 ◽

Cited By ~ 32

Author(s):

Carlo Serra ◽

Jan-Karl Burkhardt ◽

Giuseppe Esposito ◽

Oliver Bozinov ◽

Athina Pangalu ◽

...

Keyword(s):

Pituitary Adenomas ◽

Pituitary Surgery ◽

Extent Of Resection ◽

Gross Total Resection ◽

Subtotal Resection ◽

Consecutive Series ◽

High Definition ◽

Total Resection ◽

Entire Cohort ◽

Volumetric Assessment

OBJECTIVE The aim of this study was to quantitatively assess the role of intraoperative high-field 3-T MRI (3T-iMRI) in improving the gross-total resection (GTR) rate and the extent of resection (EOR) in endoscopic transsphenoidal surgery (TSS) for pituitary adenomas. METHODS Radiological and clinical data from a prospective database were retrospectively analyzed. Volumetric measurements of adenoma volumes pre-, intraoperatively, and 3 months postoperatively were performed in a consecutive series of patients who had undergone endoscopic TSS. The quantitative contribution of 3T-iMRI was measured as a percentage of the additional rate of GTR and of the EOR achieved after 3T-iMRI. RESULTS The cohort consisted of 50 patients (51 operations) harboring 33 nonfunctioning and 18 functioning pituitary adenomas. Mean adenoma diameter and volume were 21.1 mm (range 5–47 mm) and 5.23 cm3 (range 0.09–22.14 cm3), respectively. According to Knosp's classification, 10 cases were Grade 0; 8, Grade 1; 17, Grade 2; 12, Grade 3; and 4, Grade 4. Gross-total resection was the surgical goal (targeted [t]GTR) in 34 of 51 operations and was initially achieved in 16 (47%) of 34 at 3T-iMRI and in 30 (88%) of 34 cases after further resection. In this subgroup, the EOR increased from 91% at 3T-iMRI to 99% at the 3-month MRI (p < 0.05). In the 17 cases in which subtotal resection (STR) had been planned (tSTR), the EOR increased from 79% to 86% (p < 0.05) and GTR could be achieved in 1 case. Intrasellar remnants were present in 20 of 51 procedures at 3T-iMRI and in only 5 (10%) of 51 procedures after further resection (median volume 0.15 cm3). Overall, the use of 3T-iMRI led to further resection in 27 (53%) of 51 procedures and permitted GTR in 15 (56%) of these 27 procedures; thus, the GTR rate in the entire cohort increased from 31% (16 of 51) to 61% (31 of 51) and the EOR increased from 87% to 95% (p < 0.05). CONCLUSIONS The use of high-definition 3T-iMRI allowed precise visualization and quantification of adenoma remnant volume. It helped to increase GTR and EOR rates in both tGTR and tSTR patient groups. Moreover, it helped to achieve low rates of intrasellar remnants. These data support the use of 3T-iMRI to achieve maximal, safe adenoma resection.

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Tuberculum sellae meningiomas: grading scale to assess surgical outcomes using the transcranial versus transsphenoidal approach

Neurosurgical FOCUS ◽

10.3171/2018.1.focus17753 ◽

2018 ◽

Vol 44 (4) ◽

pp. E9 ◽

Cited By ~ 23

Author(s):

Stephen T. Magill ◽

Ramin A. Morshed ◽

Calixto-Hope G. Lucas ◽

Manish K. Aghi ◽

Philip V. Theodosopoulos ◽

...

Keyword(s):

Surgical Outcomes ◽

Extent Of Resection ◽

Gross Total Resection ◽

Csf Leak ◽

Subtotal Resection ◽

Complication Rates ◽

Total Resection ◽

Visual Outcomes ◽

Grading Scale ◽

Tuberculum Sellae

OBJECTIVETuberculum sellae meningiomas (TSMs) are surgically challenging tumors that can severely impair vision. Debate exists regarding whether the transcranial (TC) or endoscopic transsphenoidal (TS) approach is best for resecting these tumors, and there are few large series comparing these approaches.METHODSA retrospective chart review was performed at 2 academic centers comparing TC and TS approaches with respect to vision, extent of resection, recurrence, and complications. The authors report surgical outcomes and propose a simple preoperative tumor grading scale that scores tumor size (1–2), optic canal invasion (0–2), and arterial encasement (0–2). The authors performed univariate, multivariate, and recursive partitioning analysis (RPA) to evaluate outcomes.RESULTSThe TSMs were resected in 139 patients. The median follow-up was 29 months. Ninety-five (68%) cases were resected via a TC and 44 (32%) via a TS approach. Tumors treated via a TC approach had a higher tumor (p = 0.0007), artery (p < 0.0001), and total score (p = 0.0012) on the grading scale. Preoperative visual deficits were present in 87% of patients. Vision improved in 47%, stayed the same in 35%, declined in 10%, and was not recorded in 8%. The extent of resection was 65% gross-total resection, 23% near-total resection (95%–99% resection), and 12% subtotal resection (< 95%). A lower tumor score was significantly associated with better or stable vision postoperatively (p = 0.0052). The RPA confirmed low tumor score as the key predictor of postoperative visual improvement or stability. Multivariate analysis and RPA demonstrate that lower canal score (p < 0.0001) and TC approach (p = 0.0019) are associated with gross-total resection. Complications occurred in 20 (14%) patients, including CSF leak (5%) and infection (4%). There was no difference in overall complication rates between TC and TS approaches; however, the TS approach had more CSF leaks (OR 5.96, 95% CI 1.10–32.04). The observed recurrence rate was 10%, and there was no difference between the TC and TS approaches.CONCLUSIONSTuberculum sellae meningiomas can be resected using either a TC or TS approach, with low morbidity and good visual outcomes in appropriately selected patients. The simple proposed grading scale provides a standard preoperative method to evaluate TSMs and can serve as a starting point for selection of the surgical approach. Higher scores were associated with worsened visual outcomes and subtotal resection, regardless of approach. The authors plan a multicenter review of this grading scale to further evaluate its utility.

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Proposal and Validation of a Simple Grading Scale (TRANSSPHER Grade) for Predicting Gross Total Resection of Nonfunctioning Pituitary Macroadenomas After Transsphenoidal Surgery

Operative Neurosurgery ◽

10.1093/ons/opy401 ◽

2019 ◽

Vol 17 (5) ◽

pp. 460-469 ◽

Cited By ~ 4

Author(s):

Michael A Mooney ◽

Christina E Sarris ◽

James J Zhou ◽

Garni Barkhoudarian ◽

Michael R Chicoine ◽

...

Keyword(s):

Validation Cohort ◽

High Sensitivity ◽

Extent Of Resection ◽

Gross Total Resection ◽

Subtotal Resection ◽

Tumor Diameter ◽

Total Resection ◽

Rater Reliability ◽

Surgical Access ◽

Grading Scale

Abstract BACKGROUND A simple, reliable grading scale to better characterize nonfunctioning pituitary adenomas (NFPAs) preoperatively has potential for research and clinical applications. OBJECTIVE To develop a grading scale from a prospective multicenter cohort of patients that accurately and reliably predicts the likelihood of gross total resection (GTR) after transsphenoidal NFPA surgery. METHODS Extent-of-resection (EOR) data from a prospective multicenter study in transsphenoidal NFPA surgery were analyzed (TRANSSPHER study; ClinicalTrials.gov NCT02357498). Sixteen preoperative radiographic magnetic resonance imaging (MRI) tumor characteristics (eg, tumor size, invasion measures, tumor signal characteristics, and parameters impacting surgical access) were evaluated to determine EOR predictors, to calculate receiver-operating characteristic curves, and to develop a grading scale. A separate validation cohort (n = 165) was examined to assess the scale's performance and inter-rater reliability. RESULTS Data for 222 patients from 7 centers treated by 15 surgeons were analyzed. Approximately one-fifth of patients (18.5%; 41 of 222) underwent subtotal resection (STR). Maximum tumor diameter > 40 mm; nodular tumor extension through the diaphragma into the frontal lobe, temporal lobe, posterior fossa, or ventricle; and Knosp grades 3 to 4 were identified as independent STR predictors. A grading scale (TRANSSPHER grade) based on a combination of these 3 features outperformed individual variables in predicting GTR (AUC, 0.732). In a validation cohort, the scale exhibited high sensitivity and specificity (AUC, 0.779) and strong inter-rater reliability (kappa coefficient, 0.617). CONCLUSION This simple, reliable grading scale based on preoperative MRI characteristics can be used to better characterize NFPAs for clinical and research purposes and to predict the likelihood of achieving GTR.

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Epilepsy outcome following resection of low-grade brain tumors in children

Journal of Neurosurgery Pediatrics ◽

10.3171/2019.1.peds18367 ◽

2019 ◽

Vol 23 (6) ◽

pp. 726-731

Author(s):

Arvind C. Mohan ◽

Howard L. Weiner ◽

Carrie A. Mohila ◽

Adekunle Adesina ◽

Murali Chintagumpala ◽

...

Keyword(s):

Retrospective Chart Review ◽

Progression Free Survival ◽

Extent Of Resection ◽

Class I ◽

Gross Total Resection ◽

Subtotal Resection ◽

Dysembryoplastic Neuroepithelial Tumor ◽

Low Grade ◽

Total Resection ◽

Glial Tumors

OBJECTIVEThe indication for and timing of surgery for epilepsy associated with low-grade mixed neuronal-glial tumors may be controversial. The purpose of this study was to evaluate the effect of resection and associated variables on epilepsy and on progression-free survival (PFS).METHODSA retrospective chart review of patients treated between 1992 and 2016 was conducted to identify individuals with epilepsy and low-grade gliomas or neuronal-glial tumors who underwent resective surgery. Data analyzed included age at epilepsy onset, age at surgery, extent of resection, use of electrocorticography, the number of antiepileptic drugs (AEDs) before and after surgery, the presence of dysplasia, Engel class, histological findings, and PFS. The institutional review board protocol was specifically approved to conduct this study.RESULTSA total of 107 patients were identified. The median follow-up was 4.9 years. The most common pathology was dysembryoplastic neuroepithelial tumor (36.4%), followed by ganglioglioma (31.8%). Eighty-four percent of patients had Engel class I outcomes following surgery. Gross-total resection was associated with a higher likelihood of an Engel class I outcome (90%) as compared to subtotal resection (58%) (p = 0.0005). Surgery reduced the AED burden, with 40% of patients requiring no AEDs after surgery (p < 0.0001). Children with neurodevelopmental comorbidities (n = 5) uniformly did not experience seizure improvement following resection (0% vs 83% overall; p < 0.0001). Electrocorticography was used in 33% of cases and did not significantly increase class I outcomes. PFS was 90% at 5 years. Eleven percent of tumors recurred, with subtotal resection more likely to result in recurrence (hazard ratio 5.3, p = 0.02). Histological subtype showed no significant impact on recurrence.CONCLUSIONSGross-total resection was strongly associated with Engel class I outcome and longer PFS. Further studies are needed to elucidate the suitable time for surgery and to identify factors associated with oncological transformation.

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Treatment strategies for giant pituitary adenomas in the era of endoscopic transsphenoidal surgery: a multicenter series

Journal of Neurosurgery ◽

10.3171/2021.1.jns203982 ◽

2021 ◽

pp. 1-10

Author(s):

Alexander Micko ◽

Matthew S. Agam ◽

Andrew Brunswick ◽

Ben A. Strickland ◽

Martin J. Rutkowski ◽

...

Keyword(s):

Pituitary Adenomas ◽

Transsphenoidal Surgery ◽

Treatment Strategies ◽

Extent Of Resection ◽

Gross Total Resection ◽

Total Resection ◽

Endoscopic Transsphenoidal Surgery ◽

Group A ◽

Giant Pituitary Adenomas ◽

Group B

OBJECTIVE Given the anatomical complexity and frequently invasive growth of giant pituitary adenomas (GPAs), individually tailored approaches are required. The aim of this study was to assess the treatment strategies and outcomes in a large multicenter series of GPAs in the era of endoscopic transsphenoidal surgery (ETS). METHODS This was a retrospective case-control series of 64 patients with GPAs treated at two tertiary care centers by surgeons with experience in ETS. GPAs were defined by a maximum diameter of ≥ 4 cm and a volume of ≥ 10 cm3 on preoperative isovoxel contrast-enhanced MRI. RESULTS The primary operation was ETS in all cases. Overall gross-total resection rates were 64% in round GPAs, 46% in dumbbell-shaped GPAs, and 8% in multilobular GPAs (p < 0.001). Postoperative outcomes were further stratified into two groups based on extent of resection: group A (gross-total resection or partial resection with intracavernous remnant; 21/64, 33%) and group B (partial resection with intracranial remnant; 43/64, 67%). Growth patterns of GPAs were mostly round (11/14, 79%) in group A and multilobular (33/37, 89%) in group B. In group A, no patients required a second operation, and 2/21 (9%) were treated with adjuvant radiosurgery. In group B, early transcranial reoperation was required in 6/43 (14%) cases due to hemorrhagic transformation of remnants. For the remaining group B patients with remnants, 5/43 (12%) underwent transcranial surgery and 12/43 (28%) underwent delayed second ETS. There were no deaths in this series. Severe complications included stroke (6%), meningitis (6%), hydrocephalus requiring shunting (6%), and loss or distinct worsening of vision (3%). At follow-up (mean 3 years, range 0.5–16 years), stable disease was achieved in 91% of cases. CONCLUSIONS ETS as a primary treatment modality to relieve mass effect in GPAs and extent of resection are dependent on GPA morphology. The pattern of residual pituitary adenoma guides further treatment strategies, including early transcranial reoperation, delayed endoscopic transsphenoidal/transcranial reoperation, and adjuvant radiosurgery.

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Impact of Extent of Resection on Incidence of Postoperative Complications in Patients With Glioblastoma

Neurosurgery ◽

10.1093/neuros/nyz313 ◽

2019 ◽

Vol 86 (5) ◽

pp. 625-630 ◽

Cited By ~ 2

Author(s):

Dimitri Laurent ◽

Rachel Freedman ◽

Logan Cope ◽

Patricia Sacks ◽

Joe Abbatematteo ◽

...

Keyword(s):

Extent Of Resection ◽

Magnetic Resonance Images ◽

Gross Total Resection ◽

Subtotal Resection ◽

Total Resection ◽

Resection Group ◽

Patient Safety Indicators ◽

Hospital Acquired Conditions ◽

Hospital Acquired ◽

The Impact

Abstract BACKGROUND Extent of resection (EOR) is well established as correlating with overall survival in patients with glioblastoma (GBM). The impact of EOR on reported quality metrics such as patient safety indicators (PSIs) and hospital-acquired conditions (HACs) is unknown. OBJECTIVE To perform a retrospective study to evaluate possible associations between EOR and the incidence of PSIs and HACs. METHODS We queried all patients diagnosed with GBM who underwent surgical resection at our institution between January 2011 and May 2017. Pre- and postoperative magnetic resonance images were analyzed for EOR. Each chart was reviewed to determine the incidence of PSIs and HACs. RESULTS A total of 284 patients met the inclusion criteria. EOR ranged from 39.00 to 100%, with a median of 99.84% and a mean of 95.7%. There were 16 PSI, and 13 HAC, events. There were no significant differences in the rates of PSIs or HACs when compared between patients stratified by gross total resection (EOR ≥ 95%) and subtotal resection (EOR < 95%). The odds of encountering a PSI or HAC were 2.5 times more likely in the subtotal resection group compared to the gross total resection group (P = .58). After adjusting for confounders, the odds of encountering a PSI or HAC in the subtotal resection group were 3.9 times greater than for the gross total resection group (P < .05). CONCLUSION Gross total resection of GBM is associated with a decreased incidence of PSIs and HACs, as compared to subtotal resection.

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