1
|
Frisch S, Libuschewski H, Peters S, Gerß J, von Hoff K, Kortmann RD, Nemes K, Rutkowski S, Hasselblatt M, Pietsch T, Frühwald MC, Timmermann B. Radiation Therapy Plays an Important Role in the Treatment of Atypical Teratoid/Rhabdoid Tumors: Analysis of the EU-RHAB Cohorts and Their Precursors. Int J Radiat Oncol Biol Phys 2024; 119:1147-1157. [PMID: 38246248 DOI: 10.1016/j.ijrobp.2024.01.200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 12/22/2023] [Accepted: 01/07/2024] [Indexed: 01/23/2024]
Abstract
PURPOSE Atypical teratoid/rhabdoid tumor (AT/RT) is a rare malignancy of the central nervous system in young children with a dismal prognosis. Prognostic markers have been extensively investigated but have not been validated. The role of radiation therapy (RT) remains controversial. We evaluated the impact of RT as part of multimodality treatment by analyzing data of a European AT/RT cohort. METHODS AND MATERIALS We retrospectively analyzed data of the European Registry for Rhabdoid Tumors and its precursors. Primary endpoints were progression-free survival (PFS) and overall survival (OS). Potential impact of prognostic factors was analyzed using univariable and multivariable Cox regression analyses with RT as a time-dependent factor. RESULTS Data of 186 children (118 male, 68 female) treated from 1990 to 2016 were evaluable. The median age at diagnosis was 1.57 years (range, 0.01-26.70 years); 47% (87/186) of the patients were under the age of 18 months. Sixty-nine percent (128/186) received RT (focal RT, n = 93; craniospinal treatment with local boost, n = 34; spinal irradiation, n = 1). The median follow-up duration of the entire cohort was 1.73 years (range, 0.06-20.11 years). The estimated PFS and OS rates were 48% (95% CI, 41%-55%) and 72% (95% CI, 65%-78%) at 1 year and 33% (95% CI, 26%-40%) and 49% (95% CI, 41%-56%) at 2 years, respectively. On multivariable analysis, RT was an independent significant prognostic factor for PFS (hazard ratio, 0.45; 95% CI, 0.27-0.75; P = .002) and OS (hazard ratio, 0.54; 95% CI, 0.32-0.93; P = .025). CONCLUSIONS This analysis confirms the relevance of local therapies. RT was an independent prognostic factor for outcomes in children experiencing AT/RT. However, long-term sequelae have to be carefully evaluated and considered given the young age at time of RT.
Collapse
Affiliation(s)
- Sabine Frisch
- Department of Particle Therapy, University Hospital Essen, West German Proton Therapy Centre Essen (WPE), West German Cancer Center (WTZ), Essen, Germany
| | - Hanna Libuschewski
- Department of Particle Therapy, University Hospital Essen, West German Proton Therapy Centre Essen (WPE), West German Cancer Center (WTZ), Essen, Germany
| | - Sarah Peters
- Department of Particle Therapy, University Hospital Essen, West German Proton Therapy Centre Essen (WPE), West German Cancer Center (WTZ), Essen, Germany
| | - Joachim Gerß
- Institute of Biostatistics and Clinical Research, University of Münster, Münster, Germany
| | - Katja von Hoff
- Department of Paediatrics and Adolescent Medicine, Aarhus University Hospital, and Department of Clinical Medicine, Faculty of Health, Aarhus University, Aarhus, Denmark
| | - Rolf-Dieter Kortmann
- Department of Radiation Therapy, University of Leipzig Medical Center, Leipzig, Germany
| | - Karolina Nemes
- University Children's Hospital Augsburg, Swabian Childrens Cancer Center, Augsburg, Germany
| | - Stefan Rutkowski
- Department of Pediatric Hematology and Oncology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Martin Hasselblatt
- Institute of Neuropathology, University Hospital Münster, Münster, Germany
| | - Torsten Pietsch
- Department of Neuropathology, DGNN Brain Tumor Reference Center, University of Bonn Medical Centre, Bonn, Germany
| | - Michael C Frühwald
- University Children's Hospital Augsburg, Swabian Childrens Cancer Center, Augsburg, Germany
| | - Beate Timmermann
- Department of Particle Therapy, University Hospital Essen, West German Proton Therapy Centre Essen (WPE), West German Cancer Center (WTZ), Essen, Germany; German Cancer Consortium (DKTK), Essen/Düsseldorf, University Hospital Essen, 45147 Essen, Germany.
| |
Collapse
|
2
|
Timmermann B, Alapetite C, Dieckmann K, Kortmann RD, Lassen-Ramshad Y, Maduro JH, Ramos Albiac M, Ricardi U, Weber DC. ESTRO-SIOPE guideline: Clinical management of radiotherapy in atypical teratoid/rhabdoid tumors (AT/RTs). Radiother Oncol 2024; 196:110227. [PMID: 38492671 DOI: 10.1016/j.radonc.2024.110227] [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: 03/08/2024] [Accepted: 03/10/2024] [Indexed: 03/18/2024]
Abstract
BACKGROUND AND PURPOSE Treatment of patients with atypical teratoid/rhabdoid (AT/RT) is challenging, especially when very young (below the age of three years). Radiotherapy (RT) is part of a complex trimodality therapy. The purpose of this guideline is to provide appropriate recommendations for RT in the clinical management of patients not enrolled in clinical trials. MATERIALS AND METHODS Nine European experts were nominated to form a European Society for Radiotherapy and Oncology (ESTRO) guideline committee. A systematic literature search was conducted in PubMed/MEDLINE and Web of Science. They discussed and analyzed the evidence concerning the role of RT in the clinical management of AT/RT. RESULTS Recommendations on diagnostic imaging, therapeutic principles, RT considerations regarding timing, dose, techniques, target volume definitions, dose constraints of radiation-sensitive organs at risk, concomitant chemotherapy, and follow-up were considered. Treating children with AT/RT within the framework of prospective trials or prospective registries is of utmost importance. CONCLUSION The present guideline summarizes the evidence and clinical-based recommendations for RT in patients with AT/RT. Prospective clinical trials and international, large registries evaluating modern treatment approaches will contribute to a better understanding of the best treatment for these children in future.
Collapse
Affiliation(s)
- Beate Timmermann
- Department of Particle Therapy, University Hospital Essen, West German Proton Therapy Centre Essen (WPE), West German Cancer Center (WTZ), Germany, German Cancer Consortium (DKTK), Germany.
| | - Claire Alapetite
- Department of Radiation Oncology and Proton Therapy Center, Institut Curie, Paris-Orsay, France
| | - Karin Dieckmann
- Department of Radiation Oncology, Medical University of Vienna, Vienna, Austria
| | - Rolf-Dieter Kortmann
- Department of Particle Therapy, University Hospital Essen, West German Proton Therapy Centre Essen (WPE), West German Cancer Center (WTZ), Germany, German Cancer Consortium (DKTK), Germany; University of Leipzig Medical Center, Leipzig, Germany
| | | | - John H Maduro
- Department of Radiation Oncology, University of Groningen, University Medical Center Groningen, the Netherlands; Princess Máxima Center for Pediatric Oncology, Utrecht, the Netherlands
| | | | | | - Damien C Weber
- Center for Proton Therapy, Paul Scherrer Institute, ETH Domain, Villigen-PSI, Switzerland; Department of Radiation Oncology. Inselspital, Bern University Hospital, University of Bern, Switzerland
| |
Collapse
|
3
|
Lu VM. Systematic Reviews and Meta-Analyses in Pediatric Neurosurgery: Essential Domains for a Pediatric Neurosurgeon. World Neurosurg 2024; 181:78-81. [PMID: 38111198 DOI: 10.1016/j.wneu.2023.10.103] [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: 08/16/2023] [Revised: 10/19/2023] [Accepted: 10/21/2023] [Indexed: 12/20/2023]
Abstract
BACKGROUND A rise in systematic reviews and meta-analyses (SRMAs) within the neurosurgical literature has been fueled by an increasing amount of published metadata. In the pediatric niche, multiple pediatric-specific considerations must be made by pediatric neurosurgeons to ensure that their interpretation of pediatric neurosurgical SRMAs is appropriate. The objective of this review is to highlight 4 essential domains in this setting that will allow readers to more appropriately interpret pediatric neurosurgical SRMAs. METHODS The domains reviewed are 1) formulating an appropriate search strategy to incorporate all possible studies involving pediatric patients, 2) understanding how the limited quality of pediatric neurosurgical metadata affects certainty of reported findings, 3) using suitable statistical modeling that adjusts for the intrinsic and interstudy differences between contributing pediatric studies, and 4) ensuring that clinical applications of SRMA findings are appropriate in the pediatric demographic. RESULTS Each of the 4 domains can be tailored toward pediatric neurosurgery when composing SRMAs. Examples provided demonstrate where writers should be specific and what readers should be aware of to ensure findings are interpreted correctly and effectively in this niche. CONCLUSIONS In understandings these 4 essential domains, practicing pediatric neurosurgeons will be better equipped to critically evaluate SRMAs and ultimately inform their academic and evidence-based practices.
Collapse
Affiliation(s)
- Victor M Lu
- Department of Neurological Surgery, Jackson Memorial Hospital, University of Miami, Miami, Florida, USA.
| |
Collapse
|
4
|
Clinical predictors of survival for patients with atypical teratoid/rhabdoid tumors. Childs Nerv Syst 2022; 38:1297-1306. [PMID: 35362829 DOI: 10.1007/s00381-022-05511-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/27/2021] [Accepted: 03/21/2022] [Indexed: 11/03/2022]
Abstract
PURPOSE Atypical teratoid/rhabdoid tumors (AT/RTs) are malignant central nervous system (CNS) neoplasms of the young. Our study analyzed a large AT/RT cohort from the National Cancer Database (NCDB) to elucidate predictors of short-term mortality and overall survival (OS). METHODS Information was collected on patients with histologically confirmed AT/RT using the NCDB (2004-2016). Kaplan-Meier analysis indicated OS. Prognostic factors for 30-day mortality, 90-day mortality, and OS were determined via multivariate Cox proportional hazards (CPH) and logistic regression models. RESULTS Our cohort of 189 patients had a median age of 1 year (IQR [1, 4]) and tumor size of 4.7 ± 2.0 cm at diagnosis. Seventy-two percent were under 3 years old; 55.6% were male and 71.0% were Caucasian. Fifty (27.2%) patients received only surgery (S) (OS = 5.91 months), 51 (27.7%) received surgery and chemotherapy (S + CT) (OS = 11.2 months), and 9 (4.89%) received surgery and radiotherapy (S + RT) (OS = 10.3 months). Forty-five (24.5%) received S + CT + RT combination therapy (OS = 45.4 months), 13 (17.1%) received S + CT + BMT/SCT (bone marrow or stem cell transplant) (OS = 55.5 months), and 16 (8.70%) received S + CT + RT + BMT/SCT (OS = 68.4 months). Bivariate analysis of dichotomized age (HR = 0.550, 95% CI [0.357, 0.847], p = 0.0067) demonstrated significantly increased patient survival if diagnosed at or above 1 year old. On multivariate analysis, administration of S + CT + RT, S + CT + BMT/SCT, or S + CT + RT + BMT/SCT combination therapy predicted significantly (p < 0.05) increased OS compared to surgery alone. CONCLUSION AT/RTs are CNS tumors where those diagnosed under 1 year old have a significantly worse prognosis. Our study demonstrates that while traditional CT, RT, and BMT/SCT combination regimens prolong life, overall survival in this population is still low.
Collapse
|
5
|
Zhang L, Yang Y. Analysis of Pathogen Characteristics and Nursing Factors of Tonsil Infection Based on Regression Equation. SCANNING 2022; 2022:3149619. [PMID: 35811760 PMCID: PMC9206557 DOI: 10.1155/2022/3149619] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Revised: 05/26/2022] [Accepted: 06/01/2022] [Indexed: 06/15/2023]
Abstract
In order to meet the needs of the analysis and application of regression equation in clinical medicine of tonsil infection, this paper focuses on the semiparametric regression model method, cross-validation method, empirical method, and multiple regression equation analysis of atypical data using regression equation. The general method of analyzing this kind of data is given, and the parameter estimation and hypothesis testing of the model are systematically studied. The experimental results showed that among the 90 paraffin-embedded tissue specimens of chronic tonsillitis and adenoid hypertrophy in this study, 26 out of 49 male children were EBERs positive, accounting for 53.06% of male children (26/49 cases). 28 of the 41 female children were positive, accounting for 68.29 of the female children (28/41 cases). There were 14 cases in infant group, 20 cases in preschool age group, 25 cases in school-age group, and 31 cases in adolescence group; the EBERs-positive rate was 42.86% (6/14 cases) in early childhood and 55.00% in early school-age (11/20 cases), and the EBERs-positive rate was 60.00% in school-age group (15/20 cases) and 70.97% in adolescent group. The results showed that the latent infection rate of adenoid hypertrophy EBV in children with chronic tonsillitis showed no significant difference between genders. It is proved that the regression equation method can meet the needs of clinical analysis and application of tonsil infection.
Collapse
Affiliation(s)
- Longfang Zhang
- Department of Otorhinolaryngology and Stomatology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215008, China
| | - Yuanyuan Yang
- Department of Otorhinolaryngology and Stomatology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215008, China
| |
Collapse
|
6
|
Posterior Fossa Tumours in the First Year of Life: A Two-Centre Retrospective Study. Diagnostics (Basel) 2022; 12:diagnostics12030635. [PMID: 35328188 PMCID: PMC8947426 DOI: 10.3390/diagnostics12030635] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Revised: 02/25/2022] [Accepted: 03/01/2022] [Indexed: 11/16/2022] Open
Abstract
Posterior fossa tumours (PFTs) in infants are very rare, and information on these tumours is scarce in the literature. This retrospective study reports their pathological characteristics and describes surgical aspects and treatment outcomes. A two-centre cohort of infants with PFTs treated from 2007 to 2018 was retrospectively reviewed. Patient characteristics, clinical, and treatment data were reviewed. Survival curves for progression-free survival (PFS) and overall survival (OS) were generated. Thirty-three infants were retrieved. There were 11 low grade and 22 high-grade tumours. The most common presenting symptom was intracranial hypertension. Fifteen children out of thirty-three progressed. Five-year PFS was significantly lower in children with high-grade tumours (38.3%) than those with low-grade tumours (69.3%), p = 0.030. High-grade pathology was the only predictor of progression (HR 3.7, 95% CI 1.1–13.31), p = 0.045. Fourteen children with high-grade tumours died, with a 5-year OS of 55.25%. PFTs in children below one year of age still represent a unique challenge. Infants with high-grade tumours display the worst outcomes and the lowest survival, indicating that more effective strategies are needed.
Collapse
|
7
|
Lu VM, Wang S, Daniels DJ, Spinner RJ, Levi AD, Niazi TN. The clinical course and role of surgery in pediatric malignant peripheral nerve sheath tumors: a database study. J Neurosurg Pediatr 2022; 29:92-99. [PMID: 34624851 DOI: 10.3171/2021.7.peds21263] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Accepted: 07/06/2021] [Indexed: 11/06/2022]
Abstract
OBJECTIVE Malignant peripheral nerve sheath tumors (MPNSTs) are rare tumors found throughout the body, with their clinical course in children still not completely understood. Correspondingly, this study aimed to determine survival outcomes and specific clinical predictors of survival in this population from a large national database. METHODS All patients with MPNSTs aged ≤ 18 years in the US National Cancer Database (NCDB) between 2005 and 2016 were retrospectively reviewed. Data were summarized, and overall survival was modeled using Kaplan-Meier and Cox regression analyses. RESULTS A total of 251 pediatric patients with MPNSTs (132 [53%] females and 119 [47%] males) were identified; the mean age at diagnosis was 13.1 years (range 1-18 years). There were 84 (33%) MPNSTs located in the extremities, 127 (51%) were smaller than 1 cm, and 22 (9%) had metastasis at the time of diagnosis. In terms of treatment, surgery was pursued in 187 patients (74%), chemotherapy in 116 patients (46%), and radiation therapy in 129 patients (61%). The 5-year overall survival rate was estimated at 52% (95% CI 45%-59%), with a median survival of 64 months (range 36-136 months). Multivariate regression revealed that older age (HR 1.10, p < 0.01), metastases at the time of diagnosis (HR 2.14, p = 0.01), and undergoing biopsy only (HR 2.98, p < 0.01) significantly and independently predicted a shorter overall survival. Chemotherapy and radiation therapy were not statistically significant. CONCLUSIONS In this study, the authors found that older patient age, tumor metastases at the time of diagnosis, and undergoing only biopsy significantly and independently predicted poorer outcomes. Only approximately half of patients survived to 5 years. These results have shown a clear survival benefit in pursuing maximal safe resection in pediatric patients with MPNSTs. As such, judicious workup with meticulous resection by an expert team should be considered the standard of care for these tumors in children.
Collapse
Affiliation(s)
- Victor M Lu
- 1Department of Neurological Surgery, University of Miami
| | - Shelly Wang
- 1Department of Neurological Surgery, University of Miami.,3Department of Neurological Surgery, Nicklaus Children's Hospital, Miami, Florida; and
| | - David J Daniels
- 2Department of Neurologic Surgery, Mayo Clinic, Rochester, Minnesota
| | - Robert J Spinner
- 2Department of Neurologic Surgery, Mayo Clinic, Rochester, Minnesota
| | - Allan D Levi
- 1Department of Neurological Surgery, University of Miami
| | - Toba N Niazi
- 1Department of Neurological Surgery, University of Miami.,3Department of Neurological Surgery, Nicklaus Children's Hospital, Miami, Florida; and
| |
Collapse
|
8
|
Prognosticating survival of pineal parenchymal tumors of intermediate differentiation (PPTID) by grade. J Neurooncol 2021; 155:165-172. [PMID: 34606044 DOI: 10.1007/s11060-021-03863-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Accepted: 09/29/2021] [Indexed: 12/25/2022]
Abstract
BACKGROUND Pineal parenchymal tumors of intermediate differentiation (PPTID) are a rare group of pineal parenchymal tumors classified by histology as either World Health Organization (WHO) Grades 2 or 3. The rarity of these tumors in adults has left a number of clinical management questions open. Correspondingly, the aim of this study was to aggregate a large PPTID cohort with sufficient statistical power from a large national cancer database to analyze prognostic parameters. METHODS All PPTID patients aged over 18 years in the U.S. National Cancer Database (NCDB) between 2005 and 2016 were retrospectively reviewed. Data were summarized and survival was modeled using Kaplan-Meier and Cox regression analyses. RESULTS A total of 103 adult PPTID patients were identified in the NCDB with 63 (61%) WHO Grade 2 and 40 (39%) WHO Grade 3 tumors. Overall, mean age was 53 ± 18 years with even gender distribution. A total of 75 (73%) patients underwent surgical resection for diagnosis, with gross total resection (GTR) was the most common resection outcome in 50/75 (67%). Chemotherapy was utilized in 18 (17%) patients, and radiation therapy in 37 (36%) patients. Overall, 5-year survival rate was estimated to be 54% (95% CI 42-64%), with mean survival was 84 (95% CI 69-99) months. Patients with Grade 2 tumors survived statistically longer than Grade 3 tumor counterparts (P < 0.01). Overall, older age (HR 1.09, P < 0.01) was associated with shorter survival, whereas GTR (HR 0.43, P = 0.02) was associated with longer survival. Both these parameters were significant within Grade 2 and Grade 3 subgroup analyses as well. CONCLUSIONS PPTID are rare tumors with expected mean survival more than 5 years, although Grade 2 tumors are expected to survive longer than Grade 3 tumors. Age and gross total resection are significant independent predictors of survival in PPTID overall, as well as within Grade 2 and Grade 3 subgroups separately. The prognostic role and benefit of adjuvant therapy is yet to be elucidated, mandating more molecular and biologic research be done to further optimize clinical management in the future.
Collapse
|