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Behzadi F, Alhusseini M, Yang SD, Mallik AK, Germanwala AV. A Predictive Model for Intraoperative Cerebrospinal Fluid Leak During Endonasal Pituitary Adenoma Resection Using a Convolutional Neural Network. World Neurosurg 2024:S1878-8750(24)01001-5. [PMID: 38876190 DOI: 10.1016/j.wneu.2024.06.043] [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: 05/29/2024] [Accepted: 06/09/2024] [Indexed: 06/16/2024]
Abstract
BACKGROUND Cerebrospinal fluid (CSF) leak during endoscopic endonasal transsphenoidal surgery can lead to postoperative complications. The clinical and anatomic risk factors of intraoperative CSF leak are not well defined. We applied a two-dimensional (2D) convolutional neural network (CNN) machine learning model to identify risk factors from preoperative magnetic resonance imaging. METHODS All adults who underwent endoscopic endonasal transsphenoidal surgery at our institution from January 2007 to March 2023 who had accessible preoperative stereotactic magnetic resonance imaging were included. A retrospective classic statistical analysis was performed to identify demographic, clinical, and anatomic risk factors of intraoperative CSF leak. Stereotactic T2-weighted brain magnetic resonance imaging scans were used to train and test a 2D CNN model. RESULTS Of 220 included patients, 81 (36.8%) experienced intraoperative CSF leak. Among all preoperative variables, visual disturbance was the only statistically significant identified risk factor (P = 0.008). The trained 2D CNN model predicted CSF leak with 92% accuracy and area under receiver operating characteristic curve of 0.90 (sensitivity of 86% and specificity of 93%). Class activation mapping of this model revealed that anatomic regions of CSF flow were most important in predicting CSF leak. CONCLUSIONS Further review of the class activation mapping gradients revealed regions of the diaphragma sellae, clinoid processes, temporal horns, and optic nerves to have anatomic correlation to intraoperative CSF leak risk. Additionally, visual disturbances from anatomic compression of the optic chiasm were the only identified clinical risk factor. Our 2D CNN model can help a treating team to better anticipate and prepare for intraoperative CSF leak.
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Affiliation(s)
- Faraz Behzadi
- Department of Neurological Surgery, Loyola University Medical Center, Maywood, Illinois, USA
| | - Mohammad Alhusseini
- Departments of Radiology and Medical Imaging, Loyola University Medical Center, Maywood, Illinois, USA
| | - Seunghyuk D Yang
- Department of Neurological Surgery, Loyola University Medical Center, Maywood, Illinois, USA
| | - Atul K Mallik
- Departments of Radiology and Medical Imaging, Loyola University Medical Center, Maywood, Illinois, USA
| | - Anand V Germanwala
- Department of Neurological Surgery, Loyola University Medical Center, Maywood, Illinois, USA; Stritch School of Medicine, Loyola University Chicago, Maywood, Illinois, USA.
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Lin M, Wang W, Tang L, Zhou Y, Li W, Xiao J, Peng Z, Xia X. Predictive value of suprasellar extension for intracranial infection after endoscopic transsphenoidal pituitary adenoma resection. World J Surg Oncol 2023; 21:363. [PMID: 37993849 PMCID: PMC10664274 DOI: 10.1186/s12957-023-03243-y] [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: 09/04/2023] [Accepted: 11/13/2023] [Indexed: 11/24/2023] Open
Abstract
OBJECTIVE To investigate the relationship between suprasellar extension (SSE) and intracranial infection after endoscopic endonasal transsphenoidal approach (EETA) for pituitary adenoma resection. METHODS We retrospectively analyzed 94 patients with suprasellar extended pituitary adenoma admitted to the Department of Neurosurgery of the Affiliated Hospital of Guilin Medical College from January 2018 to December 2021. We measured the preoperative magnetic resonance sagittal SSE and collected clinical data and divided the patients into groups according to the presence of postoperative intracranial infection. The critical value for the SSE was calculated by using a working characteristic curve for the subjects. The risk factors for intracranial infection after EETA resection of pituitary adenomas were analyzed by multivariate regression analysis. RESULTS Among the 94 patients, 12 cases (12.8%) were placed in the infection group and 82 cases (87.2%) in the non-infection group. The cut-off value for the SSE in the sagittal position was 15.6 mm, the sensitivity was 75%, the specificity was 87.8%, and the area under the curve (AUC) was 0.801. The coronary cut-off value for the SSE was 15.8 mm, the sensitivity was 66.7%, the specificity was 79.3%, and the AUC was 0.787. The SSE values in the sagittal and coronal positions were correlated with postoperative intracranial infection (P < 0.05). After univariate analysis, those with significant differences were included in the multivariate regression analysis. It was concluded that the extension distance of the tumor above the sella in the sagittal position was ≥ 15.6 mm, the tumor texture was hard, and the postoperative cerebrospinal fluid leakage were the independent risk factors for intracranial infection after EETA resection of suprasellar extended pituitary tumors (P < 0.05). CONCLUSIONS The value of SSE on sagittal MRI can predict intracranial infection in patients with suprasellar extended pituitary adenoma after endoscopic endonasal transsphenoidal resection. This finding recommends neurosurgeons pay more attention to the imaging characteristics of pituitary adenomas and select appropriate treatment plans in combination with the intraoperative conditions to reduce the incidence of intracranial infection.
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Affiliation(s)
- Mingjian Lin
- Department of Neurosurgery, GaoZhou People's Hospital, Gaozhou, 525200, Guangdong, China
| | - Wenbo Wang
- Department of Neurosurgery, Nanxishan Hospital of Guangxi Zhuang Autonomous Region, Guilin, 541001, Guangxi, China.
| | - Lejian Tang
- Department of Neurosurgery, Nanxishan Hospital of Guangxi Zhuang Autonomous Region, Guilin, 541001, Guangxi, China
| | - Yunxiang Zhou
- Department of Neurosurgery, Affiliated Hospital of Guilin Medical College, Guilin, 541001, Guangxi, China
| | - Wencai Li
- Department of Neurosurgery, Huizhou Central People's Hospital, Huizhou, 516000, China
| | - Jing Xiao
- Department of Neurosurgery, Affiliated Hospital of Guilin Medical College, Guilin, 541001, Guangxi, China
| | - Zhizhu Peng
- Department of Neurosurgery, Nanxishan Hospital of Guangxi Zhuang Autonomous Region, Guilin, 541001, Guangxi, China
| | - Xuewei Xia
- Department of Neurosurgery, Affiliated Hospital of Guilin Medical College, Guilin, 541001, Guangxi, China
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Factors Influencing Cerebrospinal Fluid Leaking following Pituitary Adenoma Transsphenoidal Surgery: A Meta-Analysis and Comprehensive Review. BIOMED RESEARCH INTERNATIONAL 2022; 2022:5213744. [PMID: 36017392 PMCID: PMC9398767 DOI: 10.1155/2022/5213744] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Revised: 07/18/2022] [Accepted: 07/25/2022] [Indexed: 11/18/2022]
Abstract
Background Surgical resection is the main method to treat pituitary adenoma. Cerebrospinal fluid leakage (CSF Leak) is the main complication after transsphenoidal surgery. The impact of postoperative CSF Leak can be predicted in advance, and preventive measures can be taken in time. Clinically, a variety of factors may affect the occurrence of postoperative CSF Leak. In this study, meta-analysis was used to investigate the risk factors of postoperative CSF Leak as a clinical reference. Methods The databases PubMed, Medline, Embrase, Cochrane library, CNKI, and CBM were searched for all studies on the risk factors of postoperative CSF Leak. Studies were screened and finally included. The quality of the included studies was assessed by the Newcastle-Ottawa scale. We used Revman 5.4 software to conduct the pooled effect size of every potential statistically significant factor. Results 13 articles with a total of 5967 patients with pituitary adenoma and 405 cases of postoperative CSF Leak were finally included, accounting for 6.79%. All of the 13 articles had a quality score > 5, indicating good quality. Meta-analysis showed that patient age (OR = 0.71, 95% CI (0.41, 1.20), P = 0.20) was not a factor influencing postoperative CSF Leak, while BMI (MD = 2.26, 95% CI (1.31, 3.20), P < 0.00001), tumor size (MD = 1.35, 95% CI (0.22, 2.49), P = 0.02), whether a second operation was performed (OR = 2.20, 95% CI (1.45, 3.33), P = 0.0002), and intraoperative CSF Leak (OR = 8.88, 95% CI (3.64, 21.69), P < 0.00001) were risk factors for postoperative CSF Leak in patients. Discussion. BMI, tumor size, reoperation, and intraoperative CSF Leak are the risk factors of postoperative CSF Leak. However, not all the factors were covered in this study, it is still worth continuing to deeply investigate in this topic.
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Dekkers AJ, de Vries F, Zamanipoor Najafabadi AH, van der Hoeven EM, Verstegen MJT, Pereira AM, van Furth WR, Biermasz NR. Costs and Its Determinants in Pituitary Tumour Surgery. Front Endocrinol (Lausanne) 2022; 13:905019. [PMID: 35872986 PMCID: PMC9302462 DOI: 10.3389/fendo.2022.905019] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/26/2022] [Accepted: 05/04/2022] [Indexed: 11/22/2022] Open
Abstract
PURPOSE Value-based healthcare (VBHC) provides a framework to improve care by improving patient outcomes and reducing healthcare costs. To support value-based decision making in clinical practice we evaluated healthcare costs and cost drivers in perioperative care for pituitary tumour patients. METHODS We retrospectively assessed financial and clinical data for surgical treatment up to the first year after surgery of pituitary tumour patients treated between 2015 and 2018 in a Dutch tertiary referral centre. Multivariable regression analyses were performed to identify determinants of higher costs. RESULTS 271 patients who underwent surgery were included. Mean total costs (SD) were €16339 (13573) per patient, with the following cost determinants: surgery time (€62 per minute; 95% CI: 50, 74), length of stay (€1331 per day; 95% CI 1139, 1523), admission to higher care unit (€12154 in total; 95% CI 6413, 17895), emergency surgery (€10363 higher than elective surgery; 95% CI: 1422, 19305) and postoperative cerebrospinal fluid leak (€14232; 95% CI 9667, 18797). Intradural (€7128; 95% CI 10421, 23836) and combined transsphenoidal/transcranial surgery (B: 38494; 95% CI 29191, 47797) were associated with higher costs than standard. Further, higher costs were found in these baseline conditions: Rathke's cleft cyst (€9201 higher than non-functioning adenoma; 95% CI 1173, 17230), giant adenoma (€19106 higher than microadenoma; 95% CI 12336, 25877), third ventricle invasion (€14613; 95% CI 7613, 21613) and dependent functional status (€12231; 95% CI 3985, 20477). In patients with uncomplicated course, costs were €8879 (3210) and with complications €17551 (14250). CONCLUSIONS Length of hospital stay, and complications are the main drivers of costs in perioperative pituitary tumour healthcare as were some baseline features, e.g. larger tumors, cysts and dependent functional status. Costs analysis may correspond with healthcare resource utilization and guide further individualized care path development and capacity planning.
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Affiliation(s)
- Alies J. Dekkers
- Department of Medicine, Division of Endocrinology, Pituitary Center and Center for Endocrine Tumors, Leiden University Medical Center, Leiden, Netherlands
- Department of Medicine, Center for Endocrine Tumours Leiden, Leiden University Medical Center, Leiden, Netherlands
- *Correspondence: Alies J. Dekkers,
| | - Friso de Vries
- Department of Medicine, Division of Endocrinology, Pituitary Center and Center for Endocrine Tumors, Leiden University Medical Center, Leiden, Netherlands
- Department of Medicine, Center for Endocrine Tumours Leiden, Leiden University Medical Center, Leiden, Netherlands
| | - Amir H. Zamanipoor Najafabadi
- Department of Neurosurgery, Leiden University Medical Center, University Neurosurgical Center Holland, Leiden, Netherlands
| | | | - Marco J. T. Verstegen
- Department of Medicine, Center for Endocrine Tumours Leiden, Leiden University Medical Center, Leiden, Netherlands
- Department of Neurosurgery, Leiden University Medical Center, University Neurosurgical Center Holland, Leiden, Netherlands
| | - Alberto M. Pereira
- Department of Medicine, Division of Endocrinology, Pituitary Center and Center for Endocrine Tumors, Leiden University Medical Center, Leiden, Netherlands
- Department of Medicine, Center for Endocrine Tumours Leiden, Leiden University Medical Center, Leiden, Netherlands
- Department of Endocrinology and Metabolism, Amsterdam University Medical Center, Meibergdreef 9, Amsterdam, Netherlands
| | - Wouter R. van Furth
- Department of Medicine, Center for Endocrine Tumours Leiden, Leiden University Medical Center, Leiden, Netherlands
- Department of Neurosurgery, Leiden University Medical Center, University Neurosurgical Center Holland, Leiden, Netherlands
| | - Nienke R. Biermasz
- Department of Medicine, Division of Endocrinology, Pituitary Center and Center for Endocrine Tumors, Leiden University Medical Center, Leiden, Netherlands
- Department of Medicine, Center for Endocrine Tumours Leiden, Leiden University Medical Center, Leiden, Netherlands
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Abstract
Acquired skull base cerebrospinal fluid (CSF) leaks can result from trauma, tumors, iatrogenic causes, or may be spontaneous. Spontaneous skull base CSF leaks are likely a manifestation of underlying idiopathic intracranial hypertension. The initial assessment of rhinorrhea or otorrhea which is suspected to be due to an acquired skull base CSF leak requires integration of clinical assessment and biochemical confirmation of CSF. Imaging with high-resolution CT is performed to locate osseous defects, while high-resolution T2w MRI may detect CSF traversing the dura and bony skull base. When leaks are multiple or if samples of fluid cannot be obtained for testing, then recourse to invasive cisternography may be necessary.
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Affiliation(s)
- Daniel J Scoffings
- Department of Radiology, Cambridge University Hospitals NHS Foundation Trust, Hills Road, Cambridge CB2 0QQ, UK.
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