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Hong WM, Wang JT, Wang B, Cheng HW, Chen DH, Zhang F. The Application of Pneumatic Arm in Neuroendoscopic Transsphenoidal Pituitary Adenoma Resection. J Craniofac Surg 2024:00001665-990000000-01709. [PMID: 38861352 DOI: 10.1097/scs.0000000000010415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2024] [Accepted: 05/21/2024] [Indexed: 06/13/2024] Open
Abstract
OBJECTIVE To summarize the application experience of the pneumatic arm in transnasal sphenoidal pituitary adenoma resection under neuroendoscope. METHODS A retrospective analysis was conducted on the clinical data of 52 patients with pituitary adenoma who underwent endoscopic transsphenoidal surgery with pneumatic arm fixation in the Neurosurgery Department of the First Affiliated Hospital of Anhui Medical University from July 2021 to March 2024. Among them, there were 5 cases of pituitary microadenoma, 35 cases of macroadenoma, and 12 cases of giant adenoma. Head CT and a full set of hormones were re-examined within 24 hours after surgery to evaluate the surgical effect. Follow-up was conducted by the outpatient department after surgery to assess the clinical symptoms, hormone level, and imaging of all patients. RESULTS Among 52 patients, gross total resection was achieved in 48 cases (92.3%), subtotal resection in 3 cases (5.8%), and partial resection in 1 case (1.9%). Preoperatively, 43 patients had diminished vision, with 40 showing improvement postoperatively, 1 worsening, and 2 having no significant improvement. Thirty-eight patients had headaches preoperatively, and all showed varying degrees of improvement postoperatively. Routine hormone examination within 24 hours after surgery showed that all 20 prolactinoma patients had restored normal hormone levels, 10 of 12 growth hormone-secreting adenoma patients normalized, and 4 of 6 cases of adrenocorticotropic hormone-secreting adenoma immediately relieved after surgery. Postoperative complications included intracranial hematoma in 1 case, cerebrospinal fluid leakage in 2 cases, transient diabetes insipidus in 6 cases, intracranial infection in 1 case, and no death cases. The median follow-up time of 52 patients was 18.6 months (range: 1-32 mo). During the follow-up period, the initial clinical symptoms of all patients improved to varying degrees, and they were able to work and live normally. At the last follow-up, 1 patient had recurrent tumor and 1 patient had progression. CONCLUSION Transnasal sphenoidal resection of pituitary adenoma using a pneumatic arm-fixed neuroendoscope allows the operator to perform the surgery with both hands, resulting in satisfactory overall tumor resection and fewer surgical complications. This technique has good clinical value for promotion.
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Affiliation(s)
- Wen-Ming Hong
- Department of Neurosurgery, First Affiliated Hospital of Anhui Medical University, Hefei, China
- Open Project of Key Laboratory of Dermatology, Ministry of Education, Anhui Medical University, Hefei, China
| | - Jing-Tao Wang
- Department of Neurosurgery, First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Bin Wang
- Department of Neurosurgery, First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Hong-Wei Cheng
- Department of Neurosurgery, First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Dong-Hui Chen
- Department of Neurosurgery, Lu'an People's hospital, Liuan, China
| | - Fang Zhang
- School of Nursing, Anhui Medical University, Hefei, China
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Pascual-Corrales E, Acitores Cancela A, Baonza G, Madrid Egusquiza I, Rodríguez Berrocal V, Araujo-Castro M. Clinical presentation and surgical outcomes of very large and giant pituitary adenomas: 80 cases in a cohort study of 306 patients with pituitary adenomas. Acta Neurochir (Wien) 2024; 166:225. [PMID: 38772927 DOI: 10.1007/s00701-024-06107-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2024] [Accepted: 04/28/2024] [Indexed: 05/23/2024]
Abstract
PURPOSE To identify differences in the presentation and surgical outcomes between very large (30-39 mm) and giant (≥ 40 mm) (LARGE group) pituitary adenomas (PAs) compared to the smaller group (< 30 mm) (non-LARGE group). METHODS Eighty patients with very large (n = 44) or giant (n = 36) PAs and 226 patients in the non-LARGE group who underwent tumor resection by pituitary surgery between 2008 and 2023 were studied. Hormonal, radiological, ophthalmological, and pathological data, and surgical outcomes were evaluated. RESULTS Preoperatively, patients of the LARGE group presented more frequently with visual impairment (82.5% vs. 22.1%, P < 0.001) and with pituitary apoplexy (15.0% vs. 2.7%, P < 0.001) than the non-LARGE group. Moreover, the LARGE group were more commonly associated with preoperative panhypopituitarism (28.8% vs. 6.2%, P < 0.001). This group presented cavernous sinus invasion more frequently (71.3% vs. 23.9%, P < 0.001). The non-LARGE group achieved surgical cure more often than the LARGE group (79.7% vs. 50.0%, P < 0.001), and the rate of major complications was higher in the latest (8.8% vs. 1.3%, P < 0.004). CONCLUSIONS PAs ≥ 30 mm are most frequently accompanied by hormonal dysfunction, cavernous sinus invasion, and visual impairment. All this implies lower resection rates and higher postoperative complications than the smaller adenomas, posing a real surgical challenge.
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Affiliation(s)
- Eider Pascual-Corrales
- Department of Endocrinology and Nutrition, Hospital Universitario Ramón y Cajal, Instituto de Investigación Biomédica Ramón y Cajal (IRYCIS), Colmenar Viejo Street Km 9. PC: 28034, Madrid, Spain.
| | - Alberto Acitores Cancela
- Department of Neurosurgery, Hospital Universitario Ramón y Cajal, Madrid, Spain
- Department of Neurosurgery, Hospital Universitario HM Puerta del Sur, Madrid, Spain
| | - Gonzalo Baonza
- Department of Endocrinology and Nutrition, Hospital Universitario Ramón y Cajal, Instituto de Investigación Biomédica Ramón y Cajal (IRYCIS), Colmenar Viejo Street Km 9. PC: 28034, Madrid, Spain
| | - Imanol Madrid Egusquiza
- Department of Endocrinology and Nutrition, Hospital Universitario Ramón y Cajal, Instituto de Investigación Biomédica Ramón y Cajal (IRYCIS), Colmenar Viejo Street Km 9. PC: 28034, Madrid, Spain
| | - Víctor Rodríguez Berrocal
- Department of Neurosurgery, Hospital Universitario Ramón y Cajal, Madrid, Spain
- Department of Neurosurgery, Hospital Universitario HM Puerta del Sur, Madrid, Spain
| | - Marta Araujo-Castro
- Department of Endocrinology and Nutrition, Hospital Universitario Ramón y Cajal, Instituto de Investigación Biomédica Ramón y Cajal (IRYCIS), Colmenar Viejo Street Km 9. PC: 28034, Madrid, Spain.
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Seng KS, Malilay ORM. Extracapsular Resection of Pituitary Adenomas: A Systematic Review. Asian J Neurosurg 2023; 18:5-11. [PMID: 37056896 PMCID: PMC10089741 DOI: 10.1055/s-0043-1761237] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/29/2023] Open
Abstract
AbstractThere is considerable variation in the surgical techniques for transsphenoidal excision of pituitary tumors. Recently, an extracapsular method has been developed that involves using the tumor pseudocapsule as a dissection plane to increase the extent of resection. This review assessed the outcomes of this new approach as compared with standard transsphenoidal surgery. We searched the Cochrane Central Register of Controlled Trials (CENTRAL) in the Cochrane Library, MEDLINE/PubMed, the US National Institutes of Health Ongoing Trials Register (ClinicalTrials.gov), the World Health Organization (WHO) International Clinical Trials Registry Platform (ICTRP; apps.who.int/trialsearch), and LILACS databases for relevant literature and checked reference lists of relevant articles. Randomized controlled trials and prospective and retrospective cohort studies comparing extracapsular and intracapsular resection of pituitary tumors were included in the review. Five cohort studies with 1,588 participants were included. Extracapsular resection was associated with a higher likelihood of complete excision (relative risk [RR] 1.31, 95% confidence interval [CI] 1.01–1.70, p = 0.04) and endocrinologic remission (RR 1.26, 95% CI 1.03–1.54, p = 0.02). Because there was a significant risk of bias and substantial heterogeneity, the estimates of effect may not be robust. In patients with pituitary adenomas undergoing transsphenoidal excision, extracapsular resection may be associated with higher rates of complete excision and endocrinologic remission, but the evidence is not strong. Hence, randomized controlled trials to determine the magnitude of benefit and identify an improvement in progression-free or overall survival are warranted.
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Nie D, Fang Q, Wong W, Gui S, Zhao P, Li C, Zhang Y. The effect of endoscopic transsphenoidal somatotroph tumors resection on pituitary hormones: systematic review and meta-analysis. World J Surg Oncol 2023; 21:71. [PMID: 36859291 PMCID: PMC9976528 DOI: 10.1186/s12957-023-02958-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Accepted: 02/22/2023] [Indexed: 03/03/2023] Open
Abstract
PURPOSE Currently, endoscopic transsphenoidal surgery is the main treatment for pituitary neuroendocrine tumors (PitNETs). Excision of the tumor may have positive or negative effects on pituitary endocrine function, and the pituitary function of somatotroph tumors is a point of particular concern after the operation. This study aimed to conduct a meta-analysis on the effect of endoscopic transsphenoidal somatotroph tumor resection on pituitary function. METHODS A systematic literature search was conducted for articles that included the evaluation of pituitary target gland before and after endoscopic transsphenoidal pituitary tumor resection and were published between 1992 and 2022 in PubMed, Cochrane, and Ovid MEDLINE. RESULTS Sixty-eight studies that included biochemical remission rates in 4524 somatotroph tumors were concluded. According to the 2000 consensus, the biochemical remission rate after transsphenoidal endoscopic surgery was 66.4% (95% CI, 0.622-0.703; P = 0.000), the biochemical remission rate was 56.2% according to the 2010 consensus (95% CI, 0.503-0.620; P = 0.041), and with the rate of biochemical remission ranging from 30.0 to 91.7% with investigator's definition. After endoscopic resection, adrenal axis dysfunction was slightly higher than that before surgery, but the difference was not statistically significant. Hypothyroidism was 0.712 times higher risk than that before surgery (OR = 0.712; 95% CI, 0.527-0.961; P = 0.027). Hypogonadism was 0.541 times higher risk than that before surgery (OR = 0.541; 95% CI, 0.393-0.746; P = 0.000). Hyperprolactinemia was 0.131 times higher risk than that before surgery (OR = 0.131; 95% CI, 0.022-0.783; P = 0.026). The incidence of pituitary insufficiency was 1.344 times the risk before surgery after endoscopic resection of somatotroph tumors, but the difference was not statistically significant. CONCLUSIONS In patients with somatotroph tumors after undergoing endoscopic surgery, the risk of dysfunction and pituitary insufficiency tend to increase, while preoperative thyroid insufficiency, gonadal insufficiency, and hyperprolactinemia will be partially relieved.
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Affiliation(s)
- Ding Nie
- grid.24696.3f0000 0004 0369 153XBeijing Neurosurgical Institute, Capital Medical University, Beijing, China
| | - Qiuyue Fang
- grid.24696.3f0000 0004 0369 153XBeijing Neurosurgical Institute, Capital Medical University, Beijing, China
| | - Wakam Wong
- grid.24696.3f0000 0004 0369 153XBeijing Neurosurgical Institute, Capital Medical University, Beijing, China
| | - Songbai Gui
- grid.24696.3f0000 0004 0369 153XDepartment of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Peng Zhao
- grid.24696.3f0000 0004 0369 153XDepartment of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Chuzhong Li
- grid.24696.3f0000 0004 0369 153XBeijing Neurosurgical Institute, Capital Medical University, Beijing, China
| | - Yazhuo Zhang
- Beijing Neurosurgical Institute, Capital Medical University, Beijing, China.
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Extra-pseudocapsular Transnasal Transsphenoidal Resection of Pituitary Macroadenoma: Technique Note and Evaluation of Endocrine Function. Curr Med Sci 2022; 42:1148-1156. [PMID: 36542323 DOI: 10.1007/s11596-022-2674-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Accepted: 11/11/2022] [Indexed: 12/24/2022]
Abstract
OBJECTIVE In this study, we investigated the surgical technique and endocrine assessment of pituitary function of patients with macroadenoma treated by extra-pseudocapsular transnasal transsphenoidal surgery (ETTS). METHODS Clinical data of 144 patients with pituitary macroadenomas in the same surgical group at the Department of Neurosurgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology were retrospectively analyzed from January 2019 to June 2021. Based on the results of the endocrinological evaluation and MRI examinations before and after surgery, the fluctuation of pituitary function and the extent of resection were analyzed. Multiple Logistic regression analysis was used to determine the predictors affecting postoperative tumor residual. RESULTS Among the 144 patients with pituitary macroadenomas, 72 (50.0%) were female and 72 (50.0%) were male, the median age was 50 years, 26 (18.1%) had invasiveness grade 0, 46 (31.9%) had grade I, 57 (39.6%) had grade II, and 15 (10.4%) had grade III according to Lu's classification method. Based on observation during surgery, 37 cases (25.7%) had no pseudocapsule, 54 cases (37.5%) had incomplete pseudocapsule, and 53 cases (36.8%) had intact pseudocapsule. In addition, 91 (63.2%) patients had total resection, 39 (27.1%) had subtotal resection, and 14 (9.7%) had partial resection. As for anterior pituitary function, 13 of 19 hypothyroid patients had recovery after surgery, with a remission rate of 68.4%. Eighteen of the 26 decreased cortisol patients got back to normal, with a remission rate of 69.2%. A total of 27 of 51 patients with hypogonadism improved, with a remission rate of 52.9%. Univariate and multivariate analyses indicated that gender, tumor size, and invasiveness were predictors of postoperative residual in patients (P<0.05). CONCLUSION The results showed that ETTS is an effective treatment modality for restoring the function of pituitary gland of the patients with macroadenomas. Tumor size and invasiveness are predictors of the extent of surgical resection and postoperative residual of macroadenomas.
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Byun YH, Kang H, Kim YH. Advances in Pituitary Surgery. Endocrinol Metab (Seoul) 2022; 37:608-616. [PMID: 35982611 PMCID: PMC9449102 DOI: 10.3803/enm.2022.1546] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Accepted: 08/01/2022] [Indexed: 11/11/2022] Open
Abstract
Pituitary surgery has advanced considerably in recent years with the exploration and development of various endoscopic approaches and techniques. Different endoscopic skull base approaches are being applied to access sellar tumors in different locations. Moreover, extracapsular dissection and cavernous sinus exploration have enabled gross total resection of sellar tumors where it could not have been achieved in the past. Techniques for skull base reconstruction have also progressed, allowing surgeons to remove larger and more complicated tumors than before. This review article discusses different endoscopic skull base approaches, surgical techniques for removing pituitary adenomas, and reconstruction methods for repairing postoperative low-flow and high-flow cerebrospinal fluid leakage.
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Affiliation(s)
- Yoon Hwan Byun
- Pituitary Center, Department of Neurosurgery, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea
| | - Ho Kang
- Pituitary Center, Department of Neurosurgery, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea
| | - Yong Hwy Kim
- Pituitary Center, Department of Neurosurgery, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea
- Corresponding author: Yong Hwy Kim. Pituitary Center, Department of Neurosurgery, Seoul National University Hospital, Seoul National University College of Medicine, 101 Daehak-ro, Jongno-gu, Seoul 03080, Korea Tel: +82-2-2072-4062, Fax: +82-2-744-8459, E-mail:
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Sarris CE, Brigeman ST, Doris E, Bobrowitz M, Rowe T, Duran EM, Santarelli GD, Rehl RM, Ovanessoff G, Rodriguez MC, Buddhdev K, Yuen KCJ, Little AS. Effects of a transsphenoidal surgery quality improvement program on patient outcomes and hospital financial performance. J Neurosurg 2022; 137:59-68. [PMID: 34798599 DOI: 10.3171/2021.7.jns21286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Accepted: 07/12/2021] [Indexed: 11/06/2022]
Abstract
OBJECTIVE A comprehensive quality improvement (QI) program aimed at all aspects of patient care after pituitary surgery was initiated at a single center. This initiative was guided by standard quality principles to improve patient outcomes and optimize healthcare value. The programmatic goal was to discharge most elective patients within 1 day after surgery, improve patient safety, and limit unplanned readmissions. The program is described, and its effect on patient outcomes and hospital financial performance over a 5-year period are investigated. METHODS Details of the patient care pathway are presented. Foundational elements of the QI program include evidence-based care pathways (e.g., for hyponatremia and pain), an in-house research program designed to fortify care pathways, patient education, expectation setting, multidisciplinary team care, standard order sets, high-touch postdischarge care, outcomes auditing, and a patient navigator, among other elements. Length of stay (LOS), outcome variability, 30-day unplanned readmissions, and hospital financial performance were identified as surrogate endpoints for healthcare value for the surgical epoch. To assess the effect of these protocols, all patients undergoing elective transsphenoidal surgery for pituitary tumors and Rathke's cleft cysts between January 2015 and December 2019 were reviewed. RESULTS A total of 609 adult patients who underwent elective surgery by experienced pituitary surgeons were identified. Patient demographics, comorbidities, and payer mix did not change significantly over the study period (p ≥ 0.10). The mean LOS was significantly shorter in 2019 versus 2015 (1.6 ± 1.0 vs 2.9 ± 2.2 midnights, p < 0.001). The percentage of patients discharged after 1 midnight was significantly higher in 2019 versus 2015 (75.4% vs 15.6%, p < 0.001). The 30-day unplanned hospital readmission rate decreased to 2.8% in 2019 from 8.3% in 2015. Per-patient hospital profit increased 71.3% ($10,613 ± $19,321 in 2015; $18,180 ± $21,930 in 2019), and the contribution margin increased 42.3% ($18,925 ± $19,236 in 2015; $26,939 ± $22,057 in 2019), while costs increased by only 3.4% ($18,829 ± $6611 in 2015; $19,469 ± $4291 in 2019). CONCLUSIONS After implementation of a comprehensive pituitary surgery QI program, patient outcomes significantly improved, outcome variability decreased, and hospital financial performance was enhanced. Future studies designed to evaluate disease remission, patient satisfaction, and how the surgeon learning curve may synergize with other quality efforts may provide additional context.
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Affiliation(s)
| | | | | | | | | | | | - Griffin D Santarelli
- 3Otolaryngology, Barrow Neurological Institute, St. Joseph's Hospital and Medical Center, Phoenix, Arizona
| | | | - Garineh Ovanessoff
- 5Department of Endocrinology, Dignity Health Medical Group, Phoenix, Arizona
| | - Monica C Rodriguez
- 5Department of Endocrinology, Dignity Health Medical Group, Phoenix, Arizona
| | - Kajalben Buddhdev
- 5Department of Endocrinology, Dignity Health Medical Group, Phoenix, Arizona
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Lu L, Wan X, Xu Y, Chen J, Shu K, Lei T. Development and Validation of a Prognostic Model for Post-Operative Recurrence of Pituitary Adenomas. Front Oncol 2022; 12:882049. [PMID: 35574399 PMCID: PMC9096140 DOI: 10.3389/fonc.2022.882049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Accepted: 04/05/2022] [Indexed: 11/13/2022] Open
Abstract
Background We aimed to assess clinical factors associated with tumor recurrence and build a nomogram based on identified risk factors to predict postoperative recurrence in patients with pituitary adenomas (PAs) who underwent gross-total resection (GTR). Methods A total of 829 patients with PAs who achieved GTR at Tongji Hospital between January 2013 and December 2018 were included in this retrospective study. The median follow-up time was 66.7 months (range: 15.6-106.3 months). Patients were randomly divided into training (n = 553) or validation (n = 276) cohorts. A range of clinical characteristics, radiological findings, and laboratory data were collected. Uni- and multivariate Cox regression analyses were applied to determine the potential risk factors for PA recurrence. A nomogram model was built from the identified factors to predict recurrence. Concordance index (C-index), calibration curve, and receiver operating characteristic (ROC) were used to determine the predictive accuracy of the nomogram. Decision curve analysis (DCA) was performed to evaluate the clinical efficacy of the nomogram. Results Pseudocapsule-based extracapsular resection (ER), cavernous sinus invasion (CSI), and tumor size were included in the nomogram. C-indices of the nomogram were 0.776 (95% confidence interval [CI]: 0.747-0.806) and 0.714 (95% CI: 0.681-0.747) for the training and validation cohorts, respectively. The area under the curve (AUC) of the nomogram was 0.770, 0.774, and 0.818 for 4-, 6-, 8-year progression-free survival (PFS) probabilities in the training cohort, respectively, and 0.739, 0.715 and 0.740 for 4-, 6-, 8-year PFS probabilities in the validation cohort, respectively. Calibration curves were well-fitted in both training and validation cohorts. DCA revealed that the nomogram model improved the prediction of PFS in both cohorts. Conclusions Pseudocapsule-based ER, CSI, and tumor size were identified as independent predictors of PA recurrence. In the present study, we developed a novel and valid nomogram with potential utility as a tool for predicting postoperative PA recurrence. The use of the nonogram model can facilitate the tailoring of counseling to meet the individual needs of patients.
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Affiliation(s)
| | | | | | | | | | - Ting Lei
- Department of Neurosurgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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Zhang X, Wang YG, Tan J, Zhao G, Ma M, Chen J, Huang N. Comparison of outcomes between intracapsular resection and pseudocapsule-based extracapsular resection for pituitary adenoma: a systematic review and meta-analysis. BMC Neurol 2022; 22:52. [PMID: 35151259 PMCID: PMC8840683 DOI: 10.1186/s12883-022-02574-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Accepted: 01/25/2022] [Indexed: 12/03/2022] Open
Abstract
Background Transsphenoidal surgery is the preferred first-line therapy for most pituitary adenoma(PA), and the conventional strategy of treatment is intracapsular resection(IR). The protocol of extracapsular resection(ER), which considers the pseudocapsule as the PA boundary for surgical removal, has also been introduced gradually. In this study, the clinical efficacies and complications were explored and compared between these two procedures. Methods A systematic literature review was performed in the PubMed, EMBASE, Web of Science and Cochrane databases. Articles comparing between IR and ER were included. Results There were 7 studies containing 1768 cases in accordance with the inclusion criteria. Although the meta-analysis showed no significant difference in complete resection, a sensitivity analysis revealed that ER was more conducive to total PA resection than IR. Moreover, we found a significant difference in favor of ER regarding biochemical remission. Furthermore, there was no significant difference in the incidence rate of certain complications, such as hormone deficiency, diabetes insipidus, intraoperative cerebrospinal fluid(CSF) and postoperative CSF leakage. However, a sensitivity analysis suggested that IR decreased the risk of intraoperative CSF leakage. Conclusions This meta-analysis unveiled that ER contributed to biochemical remission. To some extent, our results also showed that ER played a positive role in complete resection, but that IR reduced the incidence of intraoperative CSF leakage. However, the available evidence needs to be further authenticated using well-designed prospective, multicenter, randomized controlled clinical trials.
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Wang XB, Han TY, Ma JG, He C, Xue L, Zhang X, Wu ZB. Pseudocapsule and pseudocapsule-based extracapsular resection in pituitary neuroendocrine tumors. Front Endocrinol (Lausanne) 2022; 13:1056327. [PMID: 36465639 PMCID: PMC9716262 DOI: 10.3389/fendo.2022.1056327] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Accepted: 11/07/2022] [Indexed: 11/20/2022] Open
Abstract
Since Costello et al. proposed the concept of pseudocapsule of pituitary neuroendocrine tumors (PitNETs) in 1936, many studies have been published on its occurrence, development process, histopathology, and morphology. Pseudocapsule has been proposed as the anatomical interface between PitNETs and normal pituitary gland, therefore the so-called pseudocapsule-based extracapsular resection (ER) technique was developed as an extracapsular surgery method for PitNETs,which differs from the conventional intracapsular resection (IR). In recent years, ER has also been widely used in patients of different tumor types, sizes, and age groups, because the pseudocapsule can be identified more clearly under the endoscopy. Endoscopic transsphenoidal resection for PitNETs has become the preferred surgical method. We reviewed relevant literatures in the past 10 years, showing that ER could achieve better rate of gross total resection (GTR) and biochemical remission, and reduce tumor recurrence than IR, without increasing postoperative complications. Therefore, the pseudocapsule and ER should be valued by neurosurgeons and actively promoted clinically.
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Affiliation(s)
- Xiao Bin Wang
- Department Of Neurosurgery, The First Affiliated Hospital of Henan University, Kaifeng, Henan, China
| | - Tian Yi Han
- Department Of Neurosurgery, Center of Pituitary Tumors, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jian Gong Ma
- Department Of Neurosurgery, The First Affiliated Hospital of Henan University, Kaifeng, Henan, China
| | - Cheng He
- Department Of Neurosurgery, The First Affiliated Hospital of Henan University, Kaifeng, Henan, China
| | - Li Xue
- Department Of Neurosurgery, Center of Pituitary Tumors, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xun Zhang
- Neuroendocrine Research Laboratory, Massachusetts General Hospital and Harvard Medical School, Boston, MA, United States
| | - Zhe Bao Wu
- Department Of Neurosurgery, Center of Pituitary Tumors, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- *Correspondence: Zhe Bao Wu,
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Gaillard S, Adeniran S, Villa C, Jouinot A, Raffin-Sanson ML, Feuvret L, Verrelle P, Bonnet F, Dohan A, Bertherat J, Assié G, Baussart B. Outcome of giant pituitary tumors requiring surgery. Front Endocrinol (Lausanne) 2022; 13:975560. [PMID: 36105410 PMCID: PMC9465329 DOI: 10.3389/fendo.2022.975560] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Accepted: 08/09/2022] [Indexed: 11/13/2022] Open
Abstract
OBJECTIVE The management of giant pituitary tumors is complex, with few publications and recommendations. Consequently, patient's care mainly relies on clinical experience. We report here a first large series of patients with giant pituitary tumors managed by a multidisciplinary expert team, focusing on treatments and outcome. METHODS A retrospective cohort study was conducted. Giant pituitary tumors were defined by a main diameter > 40mm. Macroprolactinomas sensitive to dopamine agonists were excluded. All patients were operated by a single neurosurgical team. After surgery, multimodal management was proposed, including hormone replacement, radiotherapy and anti-tumor medical therapies. Outcome was modeled using Kaplan-Meyer representation. A logistic regression model was built to identify the risk factors associated with surgical complications. RESULTS 63 consecutive patients presented a giant adenoma, most often with visual defects. Patients were operated once, twice or three times in 59%, 40% and 1% of cases respectively, mainly through endoscopic endonasal approach. Giant adenomas included gonadotroph, corticotroph, somatotroph, lactotroph and mixed GH-PRL subtypes in 67%, 14%, 11%, 6% and 2% of patients respectively. Vision improved in 89% of patients with prior visual defects. Severe surgical complications occurred in 11% of patients, mainly for tumors > 50 mm requiring microscopic transcranial approach. Additional radiotherapy was needed for 29% of patients, 3 to 56 months after first surgery. For 6% of patients, Temozolomide treatment was required, 19 to 66 months after first surgery. CONCLUSIONS Giant pituitary tumors require multimodal management, with a central role of surgery. Most often, tumor control can be achieved by expert multidisciplinary teams.
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Affiliation(s)
- Stephan Gaillard
- Department of Neurosurgery, Assistance Publique-Hôpitaux de Paris, La Pitié-Salpêtrière University Hospital, Paris, France
| | - Sosthène Adeniran
- Department of Neurosurgery, Centre Hospitalier Universitaire Yalgado Ouédraogo University Hospital, Ouagadougou, Burkina Faso
| | - Chiara Villa
- Université Paris Cité, Institut Cochin, CNRS, INSERM, Paris, France
- Department of Pathological Cytology and Anatomy, Assistance Publique-Hôpitaux de Paris, La Pitié-Salpêtrière University Hospital, Paris, France
- Department of Endocrinology, Centre Hospitalier de Liège, Université de Liège, Domaine Universitaire du Sart Tilman, Liège, Belgium
| | - Anne Jouinot
- Université Paris Cité, Institut Cochin, CNRS, INSERM, Paris, France
- Institut Curie, INSERM, MINES ParisTech, PSL-Research University, CBIO-Centre for Computational Biology, Paris, France
| | - Marie-Laure Raffin-Sanson
- Department of Endocrinology, Assistance Publique-Hôpitaux de Paris, Hôpital Ambroise Paré, Boulogne Billancourt, France
- Université de Versailles Saint-Quentin-en-Yvelines UFR des Sciences de la Santé Simone Veil, Montigny-le-Bretonneux, France
| | - Loic Feuvret
- Radiation Oncology Department, Assistance Publique-Hôpitaux de Paris, La Pitié-Salpétrière University Hospital, Paris, France
| | - Pierre Verrelle
- Radiation Oncology Department, Institut Curie, Paris, France
| | - Fidéline Bonnet
- Université Paris Cité, Institut Cochin, CNRS, INSERM, Paris, France
- Assistance Publique Hôpitaux de Paris, Hôpital Cochin, Hormonal Biology Laboratory, Paris, France
| | - Anthony Dohan
- Department of Radiology, Assistance Publique-Hôpitaux de Paris, Hôpital Cochin, Paris, France
| | - Jérôme Bertherat
- Université Paris Cité, Institut Cochin, CNRS, INSERM, Paris, France
- Department of Endocrinology, Assistance Publique-Hôpitaux de Paris, Hôpital Cochin, Center for Rare Adrenal Diseases, Paris, France
| | - Guillaume Assié
- Université Paris Cité, Institut Cochin, CNRS, INSERM, Paris, France
- Department of Endocrinology, Assistance Publique-Hôpitaux de Paris, Hôpital Cochin, Center for Rare Adrenal Diseases, Paris, France
| | - Bertrand Baussart
- Department of Neurosurgery, Assistance Publique-Hôpitaux de Paris, La Pitié-Salpêtrière University Hospital, Paris, France
- Université Paris Cité, Institut Cochin, CNRS, INSERM, Paris, France
- *Correspondence: Bertrand Baussart, ;
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Characterization of tumor remnants in intraoperative MRI-assisted microscopic and endoscopic transsphenoidal resection of less invasive pituitary adenomas. Neurosurg Rev 2021; 45:1701-1708. [PMID: 34855027 PMCID: PMC8976794 DOI: 10.1007/s10143-021-01705-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Revised: 10/26/2021] [Accepted: 11/24/2021] [Indexed: 10/30/2022]
Abstract
INTRODUCTION Intraoperative magnetic resonance imaging (iMRI) improves the intraoperative detection of adenoma remnants in transsphenoidal surgery. iMRI might be redundant in endoscopic pituitary surgery in non-invasive tumors (Knosp 0-2) due to a superior visualization of anatomical structures in the periphery of the sella turcica compared to the microscopic technique. We identified the anatomical location of tumor remnants in iMRI and evaluated risk factors for secondary resection after iMRI and hereby selected patients with pituitary adenomas who may benefit from iMRI-assisted resection. METHODS We conducted a retrospective monocenter study of patients who underwent iMRI-assisted transsphenoidal surgical resection of pituitary adenomas at our department between 2012 and 2020. A total number of 190 consecutive iMRI-assisted transsphenoidal surgeries of pituitary adenomas graded as Knosp 0-2 were selected for analysis. Exclusion criteria were missing iMRI availability or pathologies other than adenomas. Of these 190 cases, 46.3% (N = 88) were treated with microscopic, 48.4% (N = 92) with endoscopic, and 5.3% (N = 10) with endoscopic-assisted technique. Volumetric measurement of preoperative, intraoperative, and postoperative tumor extension was performed. Demographic data, tumor characteristics, and MRI features were evaluated. Additionally, analysis of adenoma remnants identified by iMRI was performed. RESULTS An additional resection after iMRI was performed in 16.3% (N = 31). iMRI helped to reach gross total resection (GTR) in 83.9% (26/31) of these cases. False-positive resection was found in 1 patient (0.5%). Multivariable logistic analysis identified tumor volume (OR = 1.2, p = 0.007) recurrence (OR = 11.3, p = 0.002) and microscopic technique (OR = 2.8, p = 0.029) as independent risk factors for additional resection. Simultaneously, the endoscopic technique was significantly associated with GTR as evaluated by iMRI (OR = 2.8, p = 0.011) and postoperative MRI (OR = 5.8, p = 0.027). The detailed analysis of adenoma remnants on iMRI revealed the suprasellar location in a diaphragm fold, penetrating tumor above the diaphragm, or undetected invasion of cavernous sinus as well as in case of microscopic resection tumor location outside the line of sight as the main reasons for incomplete resections. CONCLUSION Tumor volume, recurrence, and microscopic technique were identified as independent predictors for additional resection in patients with Knosp 0-2 adenomas. iMRI might increase the extent of resection (EOR) safely even after the endoscopic visualization of the sella with very low risk for false-positive findings. Remnants of tumors hidden within the diaphragmic folds, intrathecally, or behind the infiltrated wall of cavernous sinus not recognized on preoperative MRI were the most common findings in iMRI.
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13
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Kinoshita Y, Taguchi A, Tominaga A, Arita K, Yamasaki F. Pseudocapsular resection in elderly patients with non-functioning pituitary adenoma. Clin Neurol Neurosurg 2021; 210:106997. [PMID: 34741976 DOI: 10.1016/j.clineuro.2021.106997] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Revised: 09/22/2021] [Accepted: 10/17/2021] [Indexed: 11/18/2022]
Abstract
OBJECTIVE The safety of transsphenoidal surgery (TSS) for pituitary adenoma in elderly populations is becoming a new topic in our aging society. However, previous studies did not focus on the surgical procedures in elderly patients. We attempted to clarify the safety of TSS and the influence of pseudocapsular resection in elderly patients with non-functioning pituitary adenoma (NFPA). METHODS A total of 284 patients undergoing initial TSS for NFPA were categorized into two groups as follows: 1) Elderly group (n = 69; age ≥ 70 years); and 2) Younger group (n = 215; age < 70 years). Furthermore, all patients were newly divided into the two following categories: 1) Resected group (n = 121, with total pseudocapsule resection); and 2) Non-Resected group (n = 163, without total pseudocapsule resection). The main outcome measure was the incidence of perioperative complications and the rate of severe growth hormone deficiency (sGHD) after TSS. RESULTS There were no significant differences in the rates of perioperative complication between the Elderly and Younger groups. Furthermore, pseudocapsular resection did not increase the surgical risks in either group. On the other hand, sGHD only showed a significant improvement in the Younger group. The only factor predicting the new development of sGHD following TSS was an older age, not pseudocapsule resection. CONCLUSIONS Aging does not increase the perioperative complications of TSS for NFPA; however, aging has a negative influence on the postoperative function of GH secretion. In contrast, pseudocapsular resection does not have any negative influence on the perioperative complications or postoperative function of GH secretion, even in elderly patients, based on the authors' experience and surgical technique.
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Affiliation(s)
- Yasuyuki Kinoshita
- Department of Neurosurgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8551, Japan.
| | - Akira Taguchi
- Department of Neurosurgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8551, Japan
| | - Atsushi Tominaga
- Department of Neurosurgery and Neuro-Endovascular Therapy, 1-5-54 Ujinakanda, Minami-ku, Hiroshima 734-8530, Japan
| | - Kazunori Arita
- Department of Neurosurgery, Izumi Regional Medical Center, 4513 Akasegawa, Akune 899-1611, Japan
| | - Fumiyuki Yamasaki
- Department of Neurosurgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8551, Japan
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14
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Xie T, Zhang X, Qu C, Li C. The Use of Micro Retractor in Endoscopic Endonasal Posterior Pseudocapsule Resection of Pituitary Macroadenoma. Technical Note. Front Oncol 2021; 11:714342. [PMID: 34485149 PMCID: PMC8414968 DOI: 10.3389/fonc.2021.714342] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Accepted: 07/23/2021] [Indexed: 11/13/2022] Open
Abstract
Background The endoscopic endonasal approach and extra-pseudocapsule resection may be the main progress in modern pituitary surgery. However, for pituitary macroadenomas, discerning the pseudocapsule in the posterior plane of the tumor may be difficult. When the anterior-inferior debulking is performed, the early subsidence of the thinning normal pituitary gland and enlarged diaphragm may obstruct the surgical dissection view. Method We describe the technique of using a micro retractor for the endoscopic endonasal posterior pseudocapsule resection of pituitary macroadenomas. This micro retractor that was 2 mm in width was placed at the 12 o’clock position on the nostrils, and the end was fixed in the flexible arms of the self-retaining retractor system. The head of the micro retractor elevated the herniated diaphragm sellae in order to continue the posterior pseudocapsule resection of the pituitary macroadenoma. Result The technique was performed very easily and no complication was observed. Conclusion The use of this micro retractor can increase the view of the posterior margin of the adenomas to facilitate the pseudocapsule dissection.
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Affiliation(s)
- Tao Xie
- Department of Neurosurgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Xiaobiao Zhang
- Department of Neurosurgery, Zhongshan Hospital, Fudan University, Shanghai, China.,Digital Medical Research Center, Fudan University, Shanghai, China.,Shanghai Key Laboratory of Medical Image Computing and Computer-Assisted Intervention, Shanghai, China
| | - Chenghui Qu
- Department of Neurosurgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Chen Li
- Department of Neurosurgery, Zhongshan Hospital, Fudan University, Shanghai, China
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15
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Lee MH, Hur KY, Hong SD, Seol HJ, Choi JW, Lee JI, Nam DH, Kong DS. Early hormonal recovery following endoscopic transsphenoidal surgery for silent non-functioning pituitary adenomas with hormone dysfunction. J Neurooncol 2021; 153:343-350. [PMID: 34002303 DOI: 10.1007/s11060-021-03774-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Accepted: 05/07/2021] [Indexed: 10/21/2022]
Abstract
PURPOSE The role of transsphenoidal surgery in the recovery of preexisting hormone dysfunction from pituitary tumors remains controversial. This study aimed to investigate the incidence of hormone dysfunction among asymptomatic non-functioning pituitary adenomas and their recovery following endoscopic transsphenoidal surgery. METHODS Eligibility criteria included age under 80 years, presence of a non-functioning pituitary adenoma compressing the normal gland resulting in deviation of the stalk, absence of visual symptoms, and availability for regular follow-up using MRI and pre- and post-operative endocrinological assessments. 182 patients with silent non-functioning pituitary adenomas were included in this study between March 2014 and December 2018. All patients underwent endoscopic transsphenoidal surgery and complete hormonal evaluation, with basal hormone assays and a combined pituitary function test before and after surgery until the end of last follow-up. RESULTS Preoperative assessment of hormonal function revealed that 124 of 182 patients (68.1%) had at least a single hormone dysfunction preoperatively. Among these, 61 of 124 (49.2%) had a dysfunction in a single axis, and 63 (50.8%) had a hormone dysfunction in two or more axes. Overall, the median endocrinological follow-up duration was 15.0 months (6-57 months). At 1 month following surgery, 91 patients (73.4%) with hormone dysfunction experienced improvement in at least a single hormone axis. Prolactin was the most common hormone among those that recovered at the last follow up (92.8% improvement) followed by growth hormone (GH, 50.0%), thyroid stimulating hormone (TSH, 50.0%), gonadotropin (Gn, 46.9%), and adrenocorticotropic hormone (ACTH, 45.0%). Time to recovery varied from 1.1 months (for prolactin) to 2.2 months (for gonadotropin, and ACTH). In patients with preoperative deficiency in GH, and ACTH, postoperative transient diabetes insipidus was associated with poor recovery (GH: HR = 0.50, p = 0.048; ACTH: HR = 0.39, p = 0.023). CONCLUSIONS Non-functioning pituitary adenomas with silent hormone dysfunction are often overlooked by clinicians and patients. We suggest that even silent hormone dysfunction in patients with non-functioning pituitary adenomas can be improved with effective surgical decompression and these tumors may be potential indications of endoscopic transsphenoidal surgery.
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Affiliation(s)
- Min Ho Lee
- Department of Neurosurgery, Uijeongbu St. Mary's Hospital, the Catholic University of Korea, Seoul, Korea.,Department of Neurosurgery, Brain Tumor Center, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Kyu Yeon Hur
- Division of Endocrinology, Department of Internal Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Sang Duk Hong
- Department of Otorhinolaryngology-Head and Neck Surgery, Brain Tumor Center, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Ho Jun Seol
- Department of Neurosurgery, Brain Tumor Center, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Jung Won Choi
- Department of Neurosurgery, Brain Tumor Center, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Jung- Il Lee
- Department of Neurosurgery, Brain Tumor Center, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Do-Hyun Nam
- Department of Neurosurgery, Brain Tumor Center, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Doo-Sik Kong
- Department of Neurosurgery, Brain Tumor Center, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.
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16
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Taylor DG, Janssen A, Ding D, Xu Z, Mehta GU, Liscak R, Kano H, Kosak M, Martinez-Moreno N, Hobbs L, Chen CJ, Grills IS, Mathieu D, Lunsford LD, Vance ML, Sheehan JP. Whole Sella vs Targeted Stereotactic Radiosurgery for Acromegaly: A Multicenter Matched Cohort Study. Neurosurgery 2020; 86:656-664. [PMID: 31384920 DOI: 10.1093/neuros/nyz245] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2018] [Accepted: 04/11/2019] [Indexed: 12/30/2022] Open
Abstract
BACKGROUND Targeted stereotactic radiosurgery (SRS) with sparing of the residual pituitary is the traditional radiosurgical method for pituitary adenomas. Whole-sella SRS is an alternative choice for radiologically indeterminate or large adenomas, the safety and efficacy of which has yet to be determined. OBJECTIVE To determine if whole-sella SRS in acromegaly would have comparable radiographic and biochemical control to targeted SRS. We performed a multicenter, retrospective matched cohort study to compare outcomes between groups. METHODS We conducted a retrospective review of acromegalic patients who underwent SRS from 1990 to 2016 at 10 centers participating in the International Radiosurgery Research Foundation. Whole-sella and targeted SRS patients were then matched in a 1:1 ratio. RESULTS A total of 128 patients were eligible for inclusion. Whole-sella patients had a higher pre-SRS random serum growth hormone, larger treatment volume, and higher maximum point dose to the optic apparatus. The rates of initial/durable endocrine remission, new loss of pituitary function, and new cranial neuropathy were similar between groups. Mortality and new visual deficit were higher in the whole-sella cohort, though not statistically significant. CONCLUSION There was no difference in biochemical remission or recurrence between treatment groups. Although not statistically significant, the higher rates of tumor regression and lower rates of mortality and new visual deficit may suggest consideration of targeted SRS over whole-sella SRS in acromegaly treatment. Further research is needed to determine the association between visual deficits and mortality with whole-sella SRS.
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Affiliation(s)
- Davis G Taylor
- Department of Neurosurgery, University of Virginia, Charlottesville, Virginia
| | - Andrew Janssen
- Department of Neurosurgery, University of Virginia, Charlottesville, Virginia
| | - Dale Ding
- Department of Neurosurgery, University of Louisville, Louisville, Kentucky
| | - Zhiyuan Xu
- Department of Neurosurgery, University of Virginia, Charlottesville, Virginia
| | - Gautam U Mehta
- Department of Neurosurgery, MD Anderson Cancer Center, Houston, Texas
| | - Roman Liscak
- Department of Stereotactic and Radiation Neurosurgery, Na Homolce Hospital, Prague, Czech Republic
| | - Hideyuki Kano
- Department of Neurological Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Mikulas Kosak
- First Faculty of Medicine, 3rd Department of Medicine, Charles University, Prague, Czech Republic
| | | | - Landon Hobbs
- Department of Neurosurgery, University of Virginia, Charlottesville, Virginia
| | - Ching-Jen Chen
- Department of Neurosurgery, University of Virginia, Charlottesville, Virginia
| | - Inga S Grills
- Department of Radiation Oncology, Beaumont Health System, Royal Oak, Michigan
| | - David Mathieu
- Centre de recherche du CHUS, Division of Neurosurgery, University of Sherbrooke, Sherbrooke, Canada
| | - L Dade Lunsford
- Department of Neurological Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Mary Lee Vance
- Department of Neurosurgery, University of Virginia, Charlottesville, Virginia.,Department of Medicine, University of Virginia, Charlottesville, Virginia
| | - Jason P Sheehan
- Department of Neurosurgery, University of Virginia, Charlottesville, Virginia
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Hlaváč M, Knoll A, Mayer B, Braun M, Karpel-Massler G, Etzrodt-Walter G, Coburger J, Wirtz CR, Paľa A. Ten years’ experience with intraoperative MRI-assisted transsphenoidal pituitary surgery. Neurosurg Focus 2020; 48:E14. [DOI: 10.3171/2020.3.focus2072] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Accepted: 03/03/2020] [Indexed: 11/06/2022]
Abstract
OBJECTIVEMany innovations have been introduced into pituitary surgery in the quest to maximize the extent of tumor resection. Because of the deep and narrow surgical corridor as well as the heterogeneity of confronted pathologies, anatomical orientation and identification of the target tissue can become difficult. Intraoperative MRI (iMRI) may have the potential to increase extent of resection (EOR) in transsphenoidal pituitary surgery. Furthermore, it may simplify anatomical orientation and risk assessment in difficult cases. Here, the authors evaluated the additional value of iMRI for the resection of pituitary adenomas performed in the past 10 years in their department.METHODSThey performed a retrospective single-center analysis of patients treated for pituitary adenoma in their department after the introduction of iMRI between 2008 and 2018. Of 495 transsphenoidal approaches, 300 consecutive MRI-assisted surgeries for pituitary adenomas encompassing 294 patients were selected for further analysis. Microscopic, endoscopic, or endoscope-assisted microscopic transsphenoidal approaches were distinguished. EOR as well as additional resection following iMRI was evaluated via detailed volumetric analysis. Patients were stratified according to the Knosp adenoma classification. Furthermore, demographic data, clinical symptoms, endocrine outcome, and complications were evaluated. Univariable and multivariable Cox regression analyses of progression-free survival (PFS) were performed.RESULTSPituitary adenomas classified as Knosp grades 0–2 were found in 60.3% of cases (n = 181). The most common tumors were nonfunctioning adenomas (75%). Continued resection following iMRI significantly increased EOR (7.5%, p < 0.001) and the proportion of gross-total resections (GTRs) in transsphenoidal pituitary surgery (54% vs 68.3%, p < 0.001). Additional resection after iMRI was performed in 37% of cases. Only in the subgroup of patients with Knosp grades 0–2 adenomas treated with the microsurgical technique was additional resection significantly more common than in the endoscopic group (p = 0.039). Residual tumor volume, Knosp grade, and age were confirmed as independent predictors of PFS (p < 0.001, p = 0.021, and p = 0.029, respectively) in a multivariable Cox regression analysis. Improvement of visual field deficits was documented in 78.6% of patients whose optic apparatus had been affected preoperatively. Revision surgery was done in 7.3% of cases; in 5.6% of cases, it was performed for cerebrospinal fluid fistula.CONCLUSIONSIn this series, iMRI led to the detection of a resectable tumor remnant in a high proportion of patients, resulting in a greater EOR and higher proportion of GTRs after continued resection in microsurgical and endoscopic transsphenoidal resection of pituitary adenomas. The volume of residual tumor was the most important predictor of PFS. Given the study data, the authors postulated that every bit of removed tumor serves the patient and increases their chances of a favorable outcome.
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Affiliation(s)
- Michal Hlaváč
- 1Department of Neurosurgery, University of Ulm, Günzburg
| | - Andreas Knoll
- 1Department of Neurosurgery, University of Ulm, Günzburg
| | - Benjamin Mayer
- 3Institute of Epidemiology and Medical Biometry, University of Ulm
| | - Michael Braun
- 4Department of Neuroradiology, University of Ulm, Günzburg, Germany
| | | | | | - Jan Coburger
- 1Department of Neurosurgery, University of Ulm, Günzburg
| | | | - Andrej Paľa
- 1Department of Neurosurgery, University of Ulm, Günzburg
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18
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Assessing the association of tumor consistency and gland manipulation on hormonal outcomes and delayed hyponatremia in pituitary macroadenoma surgery. INTERDISCIPLINARY NEUROSURGERY-ADVANCED TECHNIQUES AND CASE MANAGEMENT 2020. [DOI: 10.1016/j.inat.2019.100628] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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19
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Little AS, Gardner PA, Fernandez-Miranda JC, Chicoine MR, Barkhoudarian G, Prevedello DM, Yuen KCJ, Kelly DF. Pituitary gland recovery following fully endoscopic transsphenoidal surgery for nonfunctioning pituitary adenoma: results of a prospective multicenter study. J Neurosurg 2019; 133:1732-1738. [PMID: 31731279 DOI: 10.3171/2019.8.jns191012] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Accepted: 08/05/2019] [Indexed: 11/06/2022]
Abstract
OBJECTIVE Recovery from preexisting hypopituitarism after transsphenoidal surgery for pituitary adenoma is an important outcome to investigate. Furthermore, pituitary function has not been thoroughly evaluated after fully endoscopic surgery, and benchmark outcomes have not been clearly established. Here, the authors characterize pituitary gland outcomes with a focus on gland recovery following endoscopic transsphenoidal removal of clinically nonfunctioning adenomas. METHODS This multicenter prospective study was conducted at 6 US pituitary centers among adult patients with nonfunctioning pituitary macroadenomas who had undergone endoscopic endonasal pituitary surgery. Pituitary gland function was evaluated 6 months after surgery. RESULTS The 177 enrolled patients underwent fully endoscopic transsphenoidal surgery; 169 (95.5%) of them were available for follow-up. Ninety-five (56.2%) of the 169 patients had had a preoperative deficiency in at least one hormone axis, and 20/95 (21.1%) experienced recovery in at least one axis at the 6-month follow-up. Patients with adrenal insufficiency were more likely to recover (10/34 [29.4%]) than were those with hypothyroidism (8/72 [11.1%]) or male hypogonadism (5/50 [10.0%]). At the 6-month follow-up, 14/145 (9.7%) patients had developed at least one new deficiency. The study did not identify any predictors of gland recovery (p ≥ 0.20). Permanent diabetes insipidus was observed in 4/166 (2.4%) patients. Predictors of new gland dysfunction included a larger tumor size (p = 0.009) and Knosp grade 3 and 4 (p = 0.051). CONCLUSIONS Fully endoscopic pituitary surgery resulted in improvement of pituitary gland function in a substantial minority of patients. The deficiency from which patients were most likely to recover was adrenal insufficiency. Overall rates of postoperative permanent diabetes insipidus were low. This study provides multicenter benchmark neuroendocrine clinical outcome data for the endoscopic technique.
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Affiliation(s)
- Andrew S Little
- 1Department of Neurosurgery, Barrow Neurological Institute, Phoenix, Arizona
| | - Paul A Gardner
- 2Department of Neurosurgery, University of Pittsburgh, Pennsylvania
| | | | - Michael R Chicoine
- 4Department of Neurological Surgery, Washington University School of Medicine, St. Louis, Missouri
| | - Garni Barkhoudarian
- 5Pacific Brain Tumor Center and Pituitary Disorders Program, John Wayne Cancer Institute at Providence Saint John's Health Center, Santa Monica, California
| | - Daniel M Prevedello
- 6Department of Neurological Surgery, The Ohio State University, Columbus, Ohio; and
| | - Kevin C J Yuen
- 7Department of Neuroendocrinology, Barrow Neurological Institute, Phoenix, Arizona
| | - Daniel F Kelly
- 5Pacific Brain Tumor Center and Pituitary Disorders Program, John Wayne Cancer Institute at Providence Saint John's Health Center, Santa Monica, California
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20
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Xie Z, Wang Q, Lu X. Endoscopic endonasal resection of nonfunctioning pituitary adenoma with radiological calcification. Pituitary 2019; 22:381-386. [PMID: 31093846 DOI: 10.1007/s11102-019-00967-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
OBJECTIVE Radiological calcification in nonfunctioning pituitary adenoma is scarcely rare, which appears in various formations and raises special diagnostic and therapeutic challenges. Here we present our experience about the clinical aspects and treatment of calcified nonfunctioning pituitary adenoma. METHODS A total of 145 patients who underwent surgical resection of nonfunctioning pituitary adenomas via endoscopic endonasal approach from February 2008 to December 2018 were reviewed. Among these patients, cases with radiological calcifications on preoperative imaging were included in this study. We analyzed these patients' records, radiological neuroimaging, endocrine evaluation, operative notes as well as intraoperative videos. RESULTS Calcification on preoperative neuroimaging was observed in only 7 patients with nonfunctioning pituitary adenomas. The study population consisted of these seven patients with intra-tumor calcification (n = 2), thin and egg shelf-like capsular calcification (n = 3), hard and armor-like capsular calcification (n = 2). In 85.7% of cases (n = 6), nonfunctioning pituitary adenomas with calcification were characterized by soft tumor texture. Evidences demonstrated apoplexy occurred in 71.4% of cases with calcified pituitary adenomas (n = 5). Patients with intra-tumor calcification as well as with thin and egg shelf-like capsular calcification underwent resection of both tumor and calcification through extra-pseduocapusual dissection via endoscopic endonasal approach. Besides, in the remaining 2 cases (28.6%), hard and armor-like capsular calcification was found surrounding a soft tumor component; however, it did not interfere with adequate removal of the soft part via endoscopic endonasal approach with the hard calcification untouched. Postoperative course of all patients was uneventful. Long term follow-up (median interval of 49 months, range 8-70 months) showed that no recurrence occurred. CONCLUSIONS Although relatively rare, calcified nonfunctioning pituitary adenoma should be kept in mind to avoid making a wrong preoperative diagnosis. Given various calcification types, multiple surgical tactics is required accordingly. Extra-pseudocapusual resection via endoscopic endonasal approach is helpful for the resection of both adenoma and calcification.
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Affiliation(s)
- Zhengxing Xie
- Department of Neurosurgery, Nanjing Medical University Affiliated Wuxi Second Hospital, 68, Zhong Shan Road, Wuxi, 214001, Jiangsu, China.
| | - Qing Wang
- Department of Neurosurgery, Nanjing Medical University Affiliated Wuxi Second Hospital, 68, Zhong Shan Road, Wuxi, 214001, Jiangsu, China
| | - Xiaojie Lu
- Department of Neurosurgery, Nanjing Medical University Affiliated Wuxi Second Hospital, 68, Zhong Shan Road, Wuxi, 214001, Jiangsu, China
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21
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Arko L, Schwartz TH. Commentary: Near-Infrared Optical Contrast of Skull Base Tumors During Endoscopic Endonasal Surgery. Oper Neurosurg (Hagerstown) 2019; 17:E5-E6. [PMID: 30257001 DOI: 10.1093/ons/opy252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2018] [Accepted: 08/06/2018] [Indexed: 11/12/2022] Open
Affiliation(s)
| | - Theodore H Schwartz
- Department of Neurological Surgery, Weill Cornell Medical College, New York Presbyterian Hospital, New York, New York
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22
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Serra C, Regli L. Response to: "No doubt: the invasion of the cavernous sinus is the limiting factor for complete resection in pituitary adenomas". Acta Neurochir (Wien) 2019; 161:719-720. [PMID: 30806778 DOI: 10.1007/s00701-018-03787-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Accepted: 12/19/2018] [Indexed: 11/26/2022]
Affiliation(s)
- Carlo Serra
- Department of Neurosurgery, Clinical Neuroscience Center, University Hospital Zurich, University of Zurich, Frauenklinikstrasse 10, 8091, Zurich, Switzerland.
| | - Luca Regli
- Department of Neurosurgery, Clinical Neuroscience Center, University Hospital Zurich, University of Zurich, Frauenklinikstrasse 10, 8091, Zurich, Switzerland
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23
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Buchfelder M, Zhao Y, Schlaffer SM. Surgery for Prolactinomas to Date. Neuroendocrinology 2019; 109:77-81. [PMID: 30699424 DOI: 10.1159/000497331] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/13/2018] [Accepted: 01/29/2019] [Indexed: 11/19/2022]
Abstract
While in the past surgery for prolactinomas was a competitive option to medical treatment with dopamine agonists, to date the indications for operations are restricted to only a few specific situations. However, if a patient is intolerant to medical treatment or if the drugs are not sufficiently effective in terms of lowering prolactin levels or tumor shrinkage, surgery should always be considered. In microprolactinomas, operations can achieve excellent prolactin normalization rates. In tumors difficult to treat, the combination of surgical tumor resection and long-term medical treatment supports better control of the disease. The individual indications, results, techniques, and complications of operations for prolactinomas are briefly reviewed in this paper.
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Affiliation(s)
- Michael Buchfelder
- Department of Neurosurgery, University of Erlangen-Nuremberg, Erlangen, Germany,
| | - Yining Zhao
- Department of Neurosurgery, University of Erlangen-Nuremberg, Erlangen, Germany
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24
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Mastorakos P, Mehta GU, Chatrath A, Moosa S, Lopes MB, Payne SC, Jane JA. Tumor to Cerebellar Peduncle T2-Weighted Imaging Intensity Ratio Fails to Predict Pituitary Adenoma Consistency. J Neurol Surg B Skull Base 2018; 80:252-257. [PMID: 31143567 DOI: 10.1055/s-0038-1668516] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2018] [Accepted: 07/07/2018] [Indexed: 10/28/2022] Open
Abstract
Object The consistency of pituitary macroadenomas affects the complexity of surgical resection. On T2-weighted (T2W) imaging, the intensity ratio of the tumor to the cerebellar peduncle (tumor to cerebellar peduncle T2-weighted imaging intensity [TCTI] ratio) correlates with meningioma consistency. We aimed to determine the correlation of this radiographic finding with pituitary macroadenoma consistency and to determine whether it can be used for preoperative planning. Methods We performed a retrospective evaluation of 196 patients with macroadenomas who underwent endoscopic transsphenoidal resection from January 2012 to June 2017. Macroadenoma consistency was determined by one senior neurosurgeon at the time of surgery. Axial and coronal T2W magnetic resonance imaging images were evaluated retrospectively, and adenoma size, Knosp grade, suprasellar extension and TCTI were calculated. Results The mean TCTI ratio was 1.70 (95% confidence interval [CI]: 1.65-1.75). Intraoperatively, 140 (71.4%) adenomas were classified as soft and 48 (24.5%) as fibrous. Gross total resection was achieved in 66.7% of fibrous adenomas and in 86.4% of soft adenomas ( p = 0.007). The mean ratio was 1.68 (95% CI: 1.62-1.74) for soft tumors and 1.76 (95%CI: 1.67-1.84) for fibrous tumors. There was no difference in the mean TCTI ratio between groups. Lactotroph and somatotroph adenomas had a lower mean TCTI ratio compared with other functioning and nonfunctioning adenomas with a mean TCTI of 1.52 compared with 1.77. Conclusions In this retrospective cohort study, we found that the TCTI ratio does not correlate with tumor consistency. We also noted that the TCTI ratio is increased in prolactin and growth hormone-secreting adenomas.
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Affiliation(s)
- Panagiotis Mastorakos
- Department of Neurological Surgery, University of Virginia Health Science Center, University of Virginia, Charlottesville, Virginia, United States.,Department of Neurological Surgery, NIH/NINDS, Bethesda, Maryland, United States
| | - Gautam U Mehta
- Department of Neurological Surgery, University of Virginia Health Science Center, University of Virginia, Charlottesville, Virginia, United States.,Department of Neurological Surgery, NIH/NINDS, Bethesda, Maryland, United States.,Department of Neurosurgery, University of Texas M.D. Anderson Cancer Center, Houston, Texas, United States
| | - Ajay Chatrath
- Department of Neurological Surgery, University of Virginia Health Science Center, University of Virginia, Charlottesville, Virginia, United States
| | - Shayan Moosa
- Department of Neurological Surgery, University of Virginia Health Science Center, University of Virginia, Charlottesville, Virginia, United States
| | - Maria-Beatriz Lopes
- Department of Neurological Surgery, University of Virginia Health Science Center, University of Virginia, Charlottesville, Virginia, United States.,Department of Neuroathology, University of Virginia Health Science Center, University of Virginia, Charlottesville, Virginia, United States
| | - Spencer C Payne
- Department of Otolaryngology, University of Virginia Health Science Center, University of Virginia, Charlottesville, Virginia, United States
| | - John A Jane
- Department of Neurological Surgery, University of Virginia Health Science Center, University of Virginia, Charlottesville, Virginia, United States
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25
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Ogiwara T, Nagm A, Hongo K. Letter to the Editor. Posterior pseudocapsule in macroadenomas. J Neurosurg 2018; 129:562-563. [DOI: 10.3171/2018.3.jns18614] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
| | - Alhusain Nagm
- Shinshu University School of Medicine, Matsumoto, Japan; and
- Al-Azhar University Faculty of Medicine, Nasr City, Cairo, Egypt
| | - Kazuhiro Hongo
- Shinshu University School of Medicine, Matsumoto, Japan; and
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26
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Mastorakos P, Taylor DG, Chen CJ, Buell T, Donahue JH, Jane JA. Prediction of cavernous sinus invasion in patients with Cushing's disease by magnetic resonance imaging. J Neurosurg 2018; 130:1593-1598. [PMID: 29979125 DOI: 10.3171/2018.2.jns172704] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2017] [Accepted: 02/08/2018] [Indexed: 11/06/2022]
Abstract
OBJECTIVE Cavernous sinus invasion (CSI) in Cushing's disease (CD) negatively affects the probability of complete resection, biochemical cure, and need for adjuvant therapy. However, the prediction of CSI based on MRI findings has been inconsistent and variable. Among macroadenomas, the Knosp classification is the most widely utilized radiographic predictor of CSI, but its accuracy in predicting CSI and the probability of gross-total resection is limited in the setting of microadenomas or Knosp grade 0-2 macroadenomas. The authors noticed that the presence of a triangular shape of adenomas adjacent to the cavernous sinus on coronal MR images is frequently associated with CSI. The authors aimed to determine the correlation of this radiographic finding ("sail sign" [SS]) with CSI. METHODS The authors performed a retrospective review of all patients with a pituitary lesion < 20 mm and a biochemical diagnosis of CD treated with endoscopic or microscopic transsphenoidal resection from November 2007 to May 2017. Overall 185 patients with CD were identified: 27 were excluded for negative preoperative imaging, 32 for lacking tumors adjacent to the sinus, 7 for Knosp grade 3 or higher, and 4 for inadequate intraoperative assessment of the CSI. Following application of inclusion and exclusion criteria, 115 cases were available for statistical analysis. Intraoperative CSI was prospectively evaluated at the time of surgery by one of two neurosurgical attending surgeons, and MRI data were evaluated retrospectively by a neurosurgical resident and attending neuroradiologist blinded to the intraoperative results. RESULTS A positive SS was identified in 23 patients (20%). Among patients with positive SS, 91% demonstrated CSI compared to 10% without an SS (p < 0.001). Using the SS as a predictor of CSI provided a sensitivity of 0.7 and a specificity of 0.98, with a positive predictive value (PPV) of 0.91 and a negative predictive value of 0.9. Among patients with positive SS, 30% did not achieve immediate postoperative remission, compared to 3.3% of patients without an SS (p < 0.001). CONCLUSIONS The presence of a positive SS among Cushing's adenomas adjacent to the CS provides strong PPV, specificity, and positive likelihood ratio for the prediction of CSI. This can be a useful tool for preoperative planning and for predicting the likelihood of long-term biochemical remission and the need for adjuvant radiosurgery.
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Affiliation(s)
- Panagiotis Mastorakos
- 1Department of Neurological Surgery, University of Virginia Health Science Center, University of Virginia, Charlottesville, Virginia
- 2Department of Neurological Surgery, NIH/NINDS, Bethesda, Maryland; and
| | - Davis G Taylor
- 1Department of Neurological Surgery, University of Virginia Health Science Center, University of Virginia, Charlottesville, Virginia
| | - Ching-Jen Chen
- 1Department of Neurological Surgery, University of Virginia Health Science Center, University of Virginia, Charlottesville, Virginia
| | - Thomas Buell
- 1Department of Neurological Surgery, University of Virginia Health Science Center, University of Virginia, Charlottesville, Virginia
| | - Joseph H Donahue
- 3Department of Radiology and Medical Imaging, University of Virginia Health Science Center, University of Virginia, Charlottesville, Virginia
| | - John A Jane
- 1Department of Neurological Surgery, University of Virginia Health Science Center, University of Virginia, Charlottesville, Virginia
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Qiao N. Outcome of endoscopic vs microsurgical transsphenoidal resection for Cushing's disease. Endocr Connect 2018; 7:R26-R37. [PMID: 29311226 PMCID: PMC5763281 DOI: 10.1530/ec-17-0312] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/22/2017] [Accepted: 11/28/2017] [Indexed: 11/08/2022]
Abstract
INTRODUCTION It is unclear whether the proportions of remission and the recurrence rates differ between endoscopic transsphenoidal surgery (TS) and microscopic TS in Cushing's disease (CD); thus, we conducted a systematic review and meta-analysis to evaluate studies of endoscopic TS and microscopic TS. METHODS We conducted a comprehensive search of PubMed to identify relevant studies. Remission and recurrence were used as outcome measures following surgical treatment of CD. RESULTS A total of 24 cohort studies involving 1670 adult patients were included in the comparison. Among these studies, 702 patients across 9 studies underwent endoscopic TS, and 968 patients across 15 studies underwent microscopic TS. Similar baseline characteristics were observed in both groups. There was no significant difference in remission between the two groups: 79.7% (95% CI: 73.1-85.0%) in the endoscopic group and 76.9% (95% CI: 71.3-81.6%) in the microscopic group (P = 0.485). It appears that patients who underwent endoscopic surgery experience recurrence less often than patients who underwent microscopic surgery, with recurrence proportions of 11.0% and 15.9%, respectively (P = 0.134). However, if follow-up time is taken into account, both groups had a recurrence rate of approximately 4% per person per year (95% CI: 3.1-5.4% and 3.6-5.1%, P = 0.651). CONCLUSIONS We found that remission proportion and recurrence rate were the same in patients who underwent endoscopic TS as in patients who underwent microscopic TS. The definition of diagnosis, remission and recurrence should always be considered in the studies assessing therapeutic efficacy in CD.
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Affiliation(s)
- Nidan Qiao
- Department of NeurosurgeryHuashan Hospital, Fudan University, Shanghai, China
- Harvard Medical SchoolBoston, Massachusetts, USA
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