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Ito Y, Abe A, Hayashi H. Impact of preoperative haemoglobin, albumin, lymphocyte, and platelet score on oral cancer prognosis. Oral Dis 2024. [PMID: 38566263 DOI: 10.1111/odi.14950] [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: 09/06/2023] [Revised: 03/01/2024] [Accepted: 03/22/2024] [Indexed: 04/04/2024]
Abstract
OBJECTIVE To evaluate the preoperative haemoglobin, albumin, lymphocyte, and platelet score as a prognostic indicator in oral squamous cell carcinoma treated by radical surgery. SUBJECTS AND METHODS Patients (83 men, 32 women; 65.80 ± 11.47 years) who underwent radical surgery between 2012 and 2022 were included. Factors affecting overall survival and disease-free survival according to the haemoglobin, albumin, lymphocyte, and platelet score were examined. Patients were categorised into low- and high-score groups using optimal cut-off values obtained from receiver operating characteristic curve analysis. RESULTS The low-score group had poorer overall and disease-free survival (p < 0.001 each). Multivariate analysis identified alcohol consumption (hazard ratio [HR], 3.83; 95% confidence interval [CI]: 1.56-9.41, p = 0.003); vascular invasion (HR, 3.97; 95% CI: 1.60-9.85, p = 0.003); and the haemoglobin, albumin, lymphocyte, and platelet score (HR, 0.39; 95% CI: 0.20-0.78, p = 0.007) as independent prognostic factors for overall survival and vascular (HR, 3.66; 95% CI: 1.79-7.50, p < 0.001) and lymphovascular (HR, 2.44; 95% CI: 1.36-4.41, p = 0.003) invasion as independent prognostic factors for disease-free survival. CONCLUSION The preoperative haemoglobin, albumin, lymphocyte, and platelet score may be a significant prognostic factor for patients with oral squamous cell carcinoma undergoing radical surgery.
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Affiliation(s)
- Yu Ito
- Department of Oral and Maxillofacial Surgery, School of Dentistry, Aichi-Gakuin University, Nagoya, Japan
- Department of Oral and Maxillofacial Surgery, Nagoya Ekisaikai Hospital, Nagoya, Japan
| | - Atsushi Abe
- Department of Oral and Maxillofacial Surgery, Nagoya Ekisaikai Hospital, Nagoya, Japan
| | - Hiroki Hayashi
- Department of Oral and Maxillofacial Surgery, Nagoya Ekisaikai Hospital, Nagoya, Japan
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Bernardes S, Stello BB, Milanez DSJ, Razzera EL, Silva FM. Absence of association between low calf circumference, adjusted or not for adiposity, and ICU mortality in critically ill adults: A secondary analysis of a cohort study. JPEN J Parenter Enteral Nutr 2024; 48:291-299. [PMID: 38142302 DOI: 10.1002/jpen.2595] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 11/08/2023] [Accepted: 12/15/2023] [Indexed: 12/25/2023]
Abstract
BACKGROUND Despite its correlation with skeletal muscle mass and its predictive value for adverse outcomes in clinical settings, calf circumference is a metric underexplored in intensive care. We aimed to determine whether adjusting low calf circumference for adiposity provides prognostic value superior to its unadjusted measurement for intensive care unit (ICU) mortality and other clinical outcomes in critically ill patients. METHODS In a secondary analysis of a cohort study across five ICUs, we assessed critically ill patients within 24 h of ICU admission. We adjusted calf circumference for body mass index (BMI) (25-29.9, 30-39.9, and ≥40) by subtracting 3, 7, or 12 cm from it, respectively. Values ≤34 cm for men and ≤33 cm for women identified low calf circumference. RESULTS We analyzed 325 patients. In the primary risk-adjusted analysis, the ICU death risk was similar between the low and preserved calf circumference (BMI-adjusted) groups (hazard ratio, 0.90; 95% CI, 0.47-1.73). Low calf circumference (unadjusted) increased the odds of ICU readmission 2.91 times (95% CI, 1.40-6.05). Every 1-cm increase in calf circumference as a continuous variable reduced ICU readmission odds by 12%. Calf circumference showed no significant association with other clinical outcomes. CONCLUSION BMI-adjusted calf circumference did not exhibit independent associations with ICU and in-hospital death, nor with ICU and in-hospital length of stay, compared with its unadjusted measurement. However, low calf circumference (unadjusted and BMI-adjusted) was independently associated with ICU readmission, mainly when analyzed as a continuous variable.
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Affiliation(s)
- Simone Bernardes
- Nutrition Department, Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre, Brazil
| | - Bruna Barbosa Stello
- Nutrition Department, Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre, Brazil
| | | | - Elisa Loch Razzera
- Nutrition Department, Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre, Brazil
| | - Flávia Moraes Silva
- Nutrition Department, Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre, Brazil
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Patwardhan RS, Rai A, Sharma D, Sandur SK, Patwardhan S. Txnrd1 as a prognosticator for recurrence, metastasis and response to neoadjuvant chemotherapy and radiotherapy in breast cancer patients. Heliyon 2024; 10:e27011. [PMID: 38524569 PMCID: PMC10958228 DOI: 10.1016/j.heliyon.2024.e27011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Revised: 01/17/2024] [Accepted: 02/22/2024] [Indexed: 03/26/2024] Open
Abstract
Thioredoxin reductase 1 (Txnrd1) is known to have prognostic significance in a subset of breast cancer patients. Despite the pivotal role of Txnrd1 in regulating several cellular and physiological processes in cancer progression and metastasis, its clinical significance is largely unrecognized. Here, we undertook a retrospective comprehensive meta-analysis of 13,322 breast cancer patients from 43 independent cohorts to assess prognostic and predictive roles of Txnrd1. We observed that Txnrd1 has a positive correlation with tumor grade and size and it is over-expressed in higher-grade and larger tumors. Further, hormone receptor-negative and HER2-positive tumors exhibit elevated Txnrd1 gene expression. Patients with elevated Txnrd1 expression exhibit significant hazards for shorter disease-specific and overall survival. While Txnrd1 has a positive correlation with tumor recurrence and metastasis, it has a negative correlation with time to recurrence and metastasis. Txnrd1High patients exhibit 2.5 years early recurrence and 1.3 years early metastasis as compared to Txnrd1Low cohort. Interestingly, patients with high Txnrd1 gene expression exhibit a pathologic complete response (pCR) to neoadjuvant chemotherapy, but they experience early recurrence after radiotherapy. Txnrd1High MDA-MB-231 cells exhibit significant ROS generation and reduced viability after doxorubicin treatment compared to Txnrd1Low MCF7 cells. Corroborating with findings from meta-analysis, Txnrd1 depletion leads to decreased survival, enhanced sensitivity to radiation induced killing, poor scratch-wound healing, and reduced invasion potential in MDA-MB-231 cells. Thus, Txnrd1 appears to be a potential predictor of recurrence, metastasis and therapy response in breast cancer patients.
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Affiliation(s)
- Raghavendra S. Patwardhan
- Radiation Biology & Health Sciences Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India
| | - Archita Rai
- Radiation Biology & Health Sciences Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India
- Homi Bhabha National Institute, Mumbai, 400094, India
| | - Deepak Sharma
- Radiation Biology & Health Sciences Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India
- Homi Bhabha National Institute, Mumbai, 400094, India
| | - Santosh K. Sandur
- Radiation Biology & Health Sciences Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India
- Homi Bhabha National Institute, Mumbai, 400094, India
| | - Sejal Patwardhan
- Homi Bhabha National Institute, Mumbai, 400094, India
- Patwardhan Lab, Advanced Centre for Treatment Research & Education in Cancer, (ACTREC), Tata Memorial Centre (TMC), Kharghar, Navi Mumbai, 410210, India
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Shakhgeldyan KI, Kuksin NS, Domzhalov IG, Rublev VY, Geltser BI. Interpretable machine learning for in-hospital mortality risk prediction in patients with ST-elevation myocardial infarction after percutaneous coronary interventions. Comput Biol Med 2024; 170:107953. [PMID: 38224666 DOI: 10.1016/j.compbiomed.2024.107953] [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: 11/02/2023] [Revised: 12/22/2023] [Accepted: 01/01/2024] [Indexed: 01/17/2024]
Abstract
BACKGROUND AND OBJECTIVE Despite the constant improvement of coronary heart disease (CHD) diagnostics and treatment methods it remains one of the main causes of death in most countries around the world. And myocardial infarction with ST segment elevation on the electrocardiogram (STEMI) still is one of the most dangerous clinical variants of CHD. This study aims to develop an explainable machine learning model for in-hospital mortality (IHM) risk prediction in STEMI patients after myocardial revascularization by percutaneous coronary intervention (PCI). METHODS A single-center observational retrospective study was conducted, enrolling 4677 electronic medical records of patients with STEMI after PCI, which were analyzed using statistical analysis and machine learning methods. A pool of potential IHM predictors was identified, and prognostic models were developed and validated based on multivariate logistic regression, random forest, and stochastic gradient boosting methods at two stages of hospital treatment: during the initial physicians examination in the emergency department and immediately after PCI surgery. To explain the IHM prognosis, threshold values of IHM risk factors were determined using 3 grid search methods for optimal cut-off points, calculating centroids and SHapley Additive exPlanations (SHAP). RESULTS IHM prognostic models were developed using clinical and functional status data of STEMI patients during two stages of hospital treatment. The IHM prediction accuracy according to the first scenario was AUC = 0.85, and according to the second - AUC = 0.9. Predictors identified and validated in the models were converted into risk factors. Models whose parameters were risk factors demonstrated high forecast accuracy (AUC = 0.87), with the best model formed using the SHAP method. CONCLUSIONS For the forecast result interpretation risk factors obtained by categorizing continuous variables can be used by assessing the impact of the latter on the end point using the SHAP method.
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Affiliation(s)
- Karina Iosephovna Shakhgeldyan
- Far Eastern Federal University, School of Medicine and Life Science, 10 Ajax Bay, Russky Island, 690922, Vladivostok, Russia; Vladivostok State University, Institute of Information Technology, Gogolya St. 41, 690014, Vladivostok, Russia.
| | - Nikita Sergeevich Kuksin
- Far Eastern Federal University, Institute of Mathematics and Computer Technology, 10 Ajax Bay, Russky Island, 690922, Vladivostok, Russia.
| | - Igor Gennadievich Domzhalov
- Far Eastern Federal University, School of Medicine and Life Science, 10 Ajax Bay, Russky Island, 690922, Vladivostok, Russia.
| | - Vladislav Yurievich Rublev
- Far Eastern Federal University, School of Medicine and Life Science, 10 Ajax Bay, Russky Island, 690922, Vladivostok, Russia; Vladivostok State University, Institute of Information Technology, Gogolya St. 41, 690014, Vladivostok, Russia.
| | - Boris Izrajlevich Geltser
- Far Eastern Federal University, School of Medicine and Life Science, 10 Ajax Bay, Russky Island, 690922, Vladivostok, Russia.
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Pfeiffer C, Grandits AM, Asnagli H, Schneller A, Huber J, Zojer N, Schreder M, Parker AE, Bolomsky A, Beer PA, Ludwig H. CTPS1 is a novel therapeutic target in multiple myeloma which synergizes with inhibition of CHEK1, ATR or WEE1. Leukemia 2024; 38:181-192. [PMID: 37898670 DOI: 10.1038/s41375-023-02071-z] [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: 11/30/2022] [Revised: 09/25/2023] [Accepted: 10/10/2023] [Indexed: 10/30/2023]
Abstract
Targeting nucleotide biosynthesis is a proven strategy for the treatment of cancer but is limited by toxicity, reflecting the fundamental nucleotide requirement of dividing cells. The rate limiting step in de novo pyrimidine synthesis is of interest, being catalyzed by two homologous enzymes, CTP synthase 1 (CTPS1) and CTPS2, that could be differentially targeted. Herein, analyses of publicly available datasets identified an essential role for CTPS1 in multiple myeloma (MM), linking high expression of CTPS1 (but not CTPS2) with advanced disease and poor outcomes. In cellular experiments, CTPS1 knockout induced apoptosis of MM cell lines. Exposure of MM cells to STP-B, a novel and highly selective pharmacological inhibitor of CTPS1, inhibited proliferation, induced S phase arrest and led to cell death by apoptosis. Mechanistically, CTPS1 inhibition by STP-B activated DNA damage response (DDR) pathways and induced double-strand DNA breaks which accumulated in early S phase. Combination of STP-B with pharmacological inhibitors of key components of the DDR pathway (ATR, CHEK1 or WEE1) resulted in synergistic growth inhibition and early apoptosis. Taken together, these findings identify CTPS1 as a promising new target in MM, either alone or in combination with DDR pathway inhibition.
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Affiliation(s)
- Christina Pfeiffer
- Department of Medicine I, Klinik Ottakring, Wilhelminen Cancer Research Institute, Vienna, Austria
| | - Alexander M Grandits
- Division of Oncology, Department of Medicine I, Medical University of Vienna, Vienna, Austria
| | | | - Anja Schneller
- Department of Medicine I, Klinik Ottakring, Wilhelminen Cancer Research Institute, Vienna, Austria
| | - Julia Huber
- Department of Medicine I, Klinik Ottakring, Wilhelminen Cancer Research Institute, Vienna, Austria
| | - Niklas Zojer
- Department of Medicine I, Klinik Ottakring, Wilhelminen Cancer Research Institute, Vienna, Austria
- Department of Medicine I, Center for Oncology and Hematology, Klinik Ottakring, Vienna, Austria
| | - Martin Schreder
- Department of Medicine I, Center for Oncology and Hematology, Klinik Ottakring, Vienna, Austria
| | | | - Arnold Bolomsky
- Department of Medicine I, Klinik Ottakring, Wilhelminen Cancer Research Institute, Vienna, Austria
| | | | - Heinz Ludwig
- Department of Medicine I, Klinik Ottakring, Wilhelminen Cancer Research Institute, Vienna, Austria.
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Trulson I, Holdenrieder S. Prognostic value of blood-based protein biomarkers in non-small cell lung cancer: A critical review and 2008-2022 update. Tumour Biol 2024; 46:S111-S161. [PMID: 37927288 DOI: 10.3233/tub-230009] [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] [Indexed: 11/07/2023] Open
Abstract
BACKGROUND Therapeutic possibilities for non-small cell lung cancer (NSCLC) have considerably increased during recent decades. OBJECTIVE To summarize the prognostic relevance of serum tumor markers (STM) for early and late-stage NSCLC patients treated with classical chemotherapies, novel targeted and immune therapies. METHODS A PubMed database search was conducted for prognostic studies on carcinoembryonic antigen (CEA), cytokeratin-19 fragment (CYFRA 21-1), neuron-specific enolase, squamous-cell carcinoma antigen, progastrin-releasing-peptide, CA125, CA 19-9 and CA 15-3 STMs in NSCLC patients published from 2008 until June 2022. RESULTS Out of 1069 studies, 141 were identified as meeting the inclusion criteria. A considerable heterogeneity regarding design, patient number, analytical and statistical methods was observed. High pretherapeutic CYFRA 21-1 levels and insufficient decreases indicated unfavorable prognosis in many studies on NSCLC patients treated with chemo-, targeted and immunotherapies or their combinations in early and advanced stages. Similar results were seen for CEA in chemotherapy, however, high pretherapeutic levels were sometimes favorable in targeted therapies. CA125 is a promising prognostic marker in patients treated with immunotherapies. Combinations of STMs further increased the prognostic value over single markers. CONCLUSION Protein STMs, especially CYFRA 21-1, have prognostic potential in early and advanced stage NSCLC. For future STM investigations, better adherence to comparable study designs, analytical methods, outcome measures and statistical evaluation standards is recommended.
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Affiliation(s)
- Inga Trulson
- Munich Biomarker Research Center, Institute for Laboratory Medicine, German Heart Center, Technical University of Munich, Munich, Germany
| | - Stefan Holdenrieder
- Munich Biomarker Research Center, Institute for Laboratory Medicine, German Heart Center, Technical University of Munich, Munich, Germany
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7
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Vose JM, Fu K, Wang L, Mansoor A, Stewart D, Cheng H, Smith L, Yuan J, Qureishi HN, Link BK, Cessna MH, Barr PM, Kahl BS, Mckinney MS, Khan N, Advani RH, Martin P, Goy AH, Phillips TJ, Mehta A, Kamdar M, Crump M, Pro B, Flowers CR, Jacobson CA, Smith SM, Stephens DM, Bachanova V, Jin Z, Wu S, Hernandez-Ilizaliturri F, Torka P, Anampa-Guzmán A, Kashef F, Li X, Sharma S, Greiner TC, Armitage JO, Lunning M, Weisenburger DD, Bociek RG, Iqbal J, Yu G, Bi C. Integrative analysis of clinicopathological features defines novel prognostic models for mantle cell lymphoma in the immunochemotherapy era: a report from The North American Mantle Cell Lymphoma Consortium. J Hematol Oncol 2023; 16:122. [PMID: 38104096 PMCID: PMC10725579 DOI: 10.1186/s13045-023-01520-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Accepted: 12/04/2023] [Indexed: 12/19/2023] Open
Abstract
BACKGROUND Patients with mantle cell lymphoma (MCL) exhibit a wide variation in clinical presentation and outcome. However, the commonly used prognostic models are outdated and inadequate to address the needs of the current multidisciplinary management of this disease. This study aims to investigate the clinical and pathological features of MCL in the immunochemotherapy era and improve the prognostic models for a more accurate prediction of patient outcomes. METHODS The North American Mantle Cell Lymphoma Project is a multi-institutional collaboration of 23 institutions across North America to evaluate and refine prognosticators for front-line therapy. A total of 586 MCL cases diagnosed between 2000 and 2012 are included in this study. A comprehensive retrospective analysis was performed on the clinicopathological features, treatment approaches, and outcomes of these cases. The establishment of novel prognostic models was based on in-depth examination of baseline parameters, and subsequent validation in an independent cohort of MCL cases. RESULTS In front-line strategies, the use of hematopoietic stem cell transplantation was the most significant parameter affecting outcomes, for both overall survival (OS, p < 0.0001) and progression-free survival (PFS, p < 0.0001). P53 positive expression was the most significant pathological parameter correlating with inferior outcomes (p < 0.0001 for OS and p = 0.0021 for PFS). Based on the baseline risk factor profile, we developed a set of prognostic models incorporating clinical, laboratory, and pathological parameters that are specifically tailored for various applications. These models, when tested in the validation cohort, exhibited strong predictive power for survival and showed a stratification resembling the training cohort. CONCLUSIONS The outcome of patients with MCL has markedly improved over the past two decades, and further enhancement is anticipated with the evolution of clinical management. The innovative prognostic models developed in this study would serve as a valuable tool to guide the selection of more suitable treatment strategies for patients with MCL.
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Affiliation(s)
- Julie M Vose
- Division of Oncology and Hematology, Department of Internal Medicine, University of Nebraska Medical Center, Nebraska Medicine Fred and Pamela Buffett Cancer Center, 505 S 45Th St, Omaha, NE, 68105, USA
| | - Kai Fu
- Department of Pathology, Roswell Park Comprehensive Cancer Center, Buffalo, NY, USA
- Department of Pathology and Microbiology, University of Nebraska Medical Center, Omaha, NE, USA
| | - Lu Wang
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Yantai University, Yantai, China
| | - Adnan Mansoor
- Department of Pathology and Laboratory Medicine, University of Calgary, Calgary, Canada
| | - Douglas Stewart
- Departments of Oncology and Medicine, University of Calgary, Calgary, Canada
| | - Hongxia Cheng
- Department of Pathology and Microbiology, University of Nebraska Medical Center, Omaha, NE, USA
- Department of Pathology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong Province, China
| | - Lynette Smith
- Department of Biostatistics, University of Nebraska Medical Center, Omaha, NE, USA
| | - Ji Yuan
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA
| | - Hina Naushad Qureishi
- Department of Pathology and Microbiology, University of Nebraska Medical Center, Omaha, NE, USA
| | - Brian K Link
- Department of Internal Medicine, University of Iowa Hospitals & Clinics, Iowa City, Iowa, USA
| | - Melissa H Cessna
- Department of Pathology, Intermountain Medical Center, Murray, UT, USA
| | - Paul M Barr
- Department of Medicine, University of Rochester Medical Center, Rochester, NY, USA
| | - Brad S Kahl
- Department of Medicine, Oncology Division, Washington University School of Medicine in St. Louis, St. Louis, MO, USA
| | - Matthew S Mckinney
- Division of Hematologic Malignancies and Cellular Therapy, Department of Medicine, Duke University Medical Center, Durham, NC, USA
| | - Nadia Khan
- Department of Hematology/Oncology, Department of Hematology/Oncology, Fox Chase Cancer Center, Philadelphia, PA, USA
| | - Ranjana H Advani
- Division of Oncology, Stanford Cancer Institute, Stanford, CA, USA
| | - Peter Martin
- Division of Hematology and Oncology, Weill Cornell Medical College, New York, NY, USA
| | - Andre H Goy
- John Theurer Cancer Center at Hackensack University Medical Center, Hackensack, NJ, USA
| | - Tycel J Phillips
- Department of Internal Medicine, Division of Hematology/Oncology, University of Michigan Medical School, Ann Arbor, MI, USA
| | - Amitkumar Mehta
- O'Neal Comprehensive Cancer Center, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Manali Kamdar
- Division of Hematology, University of Colorado, Denver, CO, USA
| | - Michael Crump
- Division of Medical Oncology and Hematology, Princess Margaret Cancer Centre - University Health Network, Toronto, ON, Canada
| | - Barbara Pro
- Division of Hematology and Oncology, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, USA
| | - Christopher R Flowers
- Division of Cancer Medicine, Department of Lymphoma-Myeloma, MD Anderson Cancer Center, Houston, TX, USA
| | - Caron A Jacobson
- Department of Medical Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA, USA
| | - Sonali M Smith
- Section of Hematology/Oncology, Department of Medicine, University of Chicago, Chicago, IL, USA
| | - Deborah M Stephens
- Huntsman Cancer Institute at University of Utah, Salt Lake City, UT, USA
| | - Veronika Bachanova
- Division of Hematology, Oncology and Transplantation, Department of Medicine, University of Minnesota, Minneapolis, MN, USA
| | - Zhaohui Jin
- Department of Oncology, Mayo Clinic, Rochester, MN, USA
| | - Shishou Wu
- Department of Pathology, Affiliated Yantai Yuhuangding Hospital, Qingdao University, No.20 Yuhuangding East Road, Yantai, 264000, China
| | | | - Pallawi Torka
- Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Andrea Anampa-Guzmán
- Department of Medicine, Roswell Park Comprehensive Cancer Center, Buffalo, NY, USA
| | - Farshid Kashef
- Department of Pathology, University at Buffalo, Buffalo, NY, USA
| | - Xing Li
- Department of Pathology, Roswell Park Comprehensive Cancer Center, Buffalo, NY, USA
| | - Sunandini Sharma
- Department of Pathology and Microbiology, University of Nebraska Medical Center, Omaha, NE, USA
| | - Timothy C Greiner
- Department of Pathology and Microbiology, University of Nebraska Medical Center, Omaha, NE, USA
| | - James O Armitage
- Division of Oncology and Hematology, Department of Internal Medicine, University of Nebraska Medical Center, Nebraska Medicine Fred and Pamela Buffett Cancer Center, 505 S 45Th St, Omaha, NE, 68105, USA
| | - Matthew Lunning
- Division of Oncology and Hematology, Department of Internal Medicine, University of Nebraska Medical Center, Nebraska Medicine Fred and Pamela Buffett Cancer Center, 505 S 45Th St, Omaha, NE, 68105, USA
| | - Dennis D Weisenburger
- Department of Pathology and Microbiology, University of Nebraska Medical Center, Omaha, NE, USA
| | - Robert G Bociek
- Division of Oncology and Hematology, Department of Internal Medicine, University of Nebraska Medical Center, Nebraska Medicine Fred and Pamela Buffett Cancer Center, 505 S 45Th St, Omaha, NE, 68105, USA
| | - Javeed Iqbal
- Department of Pathology and Microbiology, University of Nebraska Medical Center, Omaha, NE, USA
| | - Guohua Yu
- Department of Pathology and Microbiology, University of Nebraska Medical Center, Omaha, NE, USA.
- Department of Pathology, Affiliated Yantai Yuhuangding Hospital, Qingdao University, No.20 Yuhuangding East Road, Yantai, 264000, China.
| | - Chengfeng Bi
- Division of Oncology and Hematology, Department of Internal Medicine, University of Nebraska Medical Center, Nebraska Medicine Fred and Pamela Buffett Cancer Center, 505 S 45Th St, Omaha, NE, 68105, USA.
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Vangelov B, Smee R, Moses D, Bauer J. Thoracic skeletal muscle index is effective for CT-defined sarcopenia evaluation in patients with head and neck cancer. Eur Arch Otorhinolaryngol 2023; 280:5583-5594. [PMID: 37573279 PMCID: PMC10620319 DOI: 10.1007/s00405-023-08162-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Accepted: 07/26/2023] [Indexed: 08/14/2023]
Abstract
PURPOSE Computed tomography (CT)-defined sarcopenia, as a measurement of low skeletal muscle (SM), is a poor prognostic indicator in patients with head and neck cancer (HNC), independent of weight or nutritional status. We used SM measures at the second thoracic vertebra (T2) to determine T2-SM index (SMI) thresholds for sarcopenia, and investigate the impact of low T2-SMI on overall survival (OS), and weight loss during radiotherapy (RT). METHODS Adult patients with newly diagnosed HNC with a diagnostic PET-CT or RT planning CT scan were included. SM was analysed at T2 and a model applied to predict SM at L3. T2-SMI thresholds for sarcopenia were established with predicted measures, stratified by BMI and sex. Impact of sarcopenia and low T2-SMI on OS and weight loss during RT was investigated. RESULTS A total of 361 scans were analysed (84% males, 54% oropharynx tumours). Sarcopenia was found in 49%, demonstrating worse OS (p = 0.037). T2-SMI cutoff values were: females-74 cm2/m2 [area under the curve (AUC): 0.89 (95%CI 0.80-0.98)], males (BMI < 25)-63 cm2/m2 [AUC 0.93 (95%CI 0.89-0.96)], males (BMI ≥ 25)-88cm2/m2 [AUC 0.86 (95%CI 0.78-0.93)]. No difference in OS with T2-SMI categories. Lowest T2-SMI quartile of < 63 cm2/m2 demonstrated worse OS (p = 0.017). Weight loss during RT was higher in patients; who were not sarcopenic (6.2% vs 4.9%, p = 0.023); with higher T2-SMI (6.3% vs 4.9%, p = 0.014) and; in the highest quartiles (3.6% vs 5.7% vs 7.2%, p < 0.001). CONCLUSIONS These T2-SMI thresholds are effective in assessing CT-defined sarcopenia in HNC. Further assessment of clinical application is warranted.
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Affiliation(s)
- Belinda Vangelov
- Department of Radiation Oncology, Nelune Comprehensive Cancer Centre, Prince of Wales Hospital and Community Health Services, Level 1, Bright Building, Avoca St, Randwick, NSW, 2031, Australia.
- School of Clinical Medicine, Randwick Campus, Faculty of Medicine and Health, University of New South Wales, Randwick, NSW, 2031, Australia.
| | - Robert Smee
- Department of Radiation Oncology, Nelune Comprehensive Cancer Centre, Prince of Wales Hospital and Community Health Services, Level 1, Bright Building, Avoca St, Randwick, NSW, 2031, Australia
- School of Clinical Medicine, Randwick Campus, Faculty of Medicine and Health, University of New South Wales, Randwick, NSW, 2031, Australia
- Department of Radiation Oncology, Tamworth Base Hospital, Tamworth, NSW, 2340, Australia
| | - Daniel Moses
- Graduate School of Biomedical Engineering, University of New South Wales, Randwick, NSW, 2031, Australia
- Department of Radiology, Prince of Wales Hospital and Community Health Services, Randwick, NSW, 2031, Australia
| | - Judith Bauer
- Department of Nutrition, Dietetics and Food, School of Clinical Sciences, Monash University, Clayton, VIC, 3168, Australia
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Liu X, Li W, Mol BW, Wen W, Wang T, Tian L, Li N, Sun T, Wang T, Zhou H, Zhang N, Qu P, Liu S, Shi J. Who may benefit from an increased gonadotropin dosing in predicted poor responders undergoing IVF/ICSI? A secondary analysis assessing treatment selection markers of a randomized trial. Eur J Obstet Gynecol Reprod Biol 2023; 291:76-81. [PMID: 37844507 DOI: 10.1016/j.ejogrb.2023.10.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Accepted: 10/09/2023] [Indexed: 10/18/2023]
Abstract
OBJECTIVE To evaluate whether we can identify patient characteristics that serve as treatment selection markers to distinguish which women with expected poor response benefit from increased dosing of follicle-stimulating hormone (FSH) in terms of improving the cumulative live birth rate compared to standard FSH dosing and which women. STUDY DESIGN We performed a secondary analysis of an RCT performed between March 2019 and October 2021 comparing cumulative live birth after increased dosing (N = 328) who received 225 or 300 IU/day according to their antral follicle count (AFC) and standard dosing (N = 333) who received 150 IU/day of gonadotropin. RESULTS The MFPI analysis showed the benefit of the increased dosing of FSH on cumulative live birth starts to emerge when women were older than 30 years (women > 30 years: 46.5 % vs. 34.2 %; adjusted relative risk (aRR) 1.32, 95 % confidence interval (95 %CI) 1.05-1.66; women ≤ 30 years: 54.7 % vs. 58.6 %; aRR 0.91, 95 % CI 0.72-1.14; p for interaction 0.019). Only those who had AFC between 1 and 3 benefited from the increased FSH dose (AFC 1-3: 38.5 % vs. 6.5 %; aRR 5.88, 95 % CI 1.50-23.15; AFC 4-9: 50.3 % vs. 46.0 %; aRR 1.08, 95 % CI 0.92-1.27; p for interaction 0.023). Expected poor responders defined by the Bologna criteria and POSEIDON criteria did not significantly benefit from the increased dosing of FSH. CONCLUSIONS Women who are aged >30 years or have AFC 1-3 are likely to benefit from increased dosing of FSH by having a higher cumulative live birth rate.
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Affiliation(s)
- Xitong Liu
- The Assisted Reproduction Center, Northwest Women's and Children's Hospital, Xi'an, China
| | - Wentao Li
- Department of Obstetrics and Gynaecology, Monash University, Monash Medical Centre, Wellington Road, Clayton VIC 3800, Victoria, Australia.
| | - Ben W Mol
- Department of Obstetrics and Gynaecology, Monash University, Monash Medical Centre, Wellington Road, Clayton VIC 3800, Victoria, Australia; Aberdeen Centre for Women's Health Research, School of Medicine, Medical Sciences and Nutrition, University of Aberdeen, Aberdeen, UK.
| | - Wen Wen
- The Assisted Reproduction Center, Northwest Women's and Children's Hospital, Xi'an, China
| | - Tao Wang
- The Assisted Reproduction Center, Northwest Women's and Children's Hospital, Xi'an, China
| | - Li Tian
- The Assisted Reproduction Center, Northwest Women's and Children's Hospital, Xi'an, China
| | - Na Li
- The Assisted Reproduction Center, Northwest Women's and Children's Hospital, Xi'an, China
| | - Ting Sun
- The Assisted Reproduction Center, Northwest Women's and Children's Hospital, Xi'an, China
| | - Ting Wang
- The Assisted Reproduction Center, Northwest Women's and Children's Hospital, Xi'an, China
| | - Hanying Zhou
- The Assisted Reproduction Center, Northwest Women's and Children's Hospital, Xi'an, China
| | - Na Zhang
- The Assisted Reproduction Center, Northwest Women's and Children's Hospital, Xi'an, China
| | - Pengfei Qu
- The Assisted Reproduction Center, Northwest Women's and Children's Hospital, Xi'an, China; Translational Medicine Center, Northwest Women's and Children's Hospital, Xi'an, China
| | - Siyu Liu
- The Assisted Reproduction Center, Northwest Women's and Children's Hospital, Xi'an, China
| | - Juanzi Shi
- The Assisted Reproduction Center, Northwest Women's and Children's Hospital, Xi'an, China.
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10
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Zhang H, Jiang X, Ren F, Gu Q, Yao J, Wang X, Zou S, Gan Y, Gu J, Xu Y, Wang Z, Liu S, Wang X, Wei B. Development and external validation of dual online tools for prognostic assessment in elderly patients with high-grade glioma: a comprehensive study using SEER and Chinese cohorts. Front Endocrinol (Lausanne) 2023; 14:1307256. [PMID: 38075045 PMCID: PMC10702965 DOI: 10.3389/fendo.2023.1307256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Accepted: 11/07/2023] [Indexed: 12/18/2023] Open
Abstract
Background Elderly individuals diagnosed with high-grade gliomas frequently experience unfavorable outcomes. We aimed to design two web-based instruments for prognosis to predict overall survival (OS) and cancer-specific survival (CSS), assisting clinical decision-making. Methods We scrutinized data from the SEER database on 5,245 elderly patients diagnosed with high-grade glioma between 2000-2020, segmenting them into training (3,672) and validation (1,573) subsets. An additional external validation cohort was obtained from our institution. Prognostic determinants were pinpointed using Cox regression analyses, which facilitated the construction of the nomogram. The nomogram's predictive precision for OS and CSS was gauged using calibration and ROC curves, the C-index, and decision curve analysis (DCA). Based on risk scores, patients were stratified into high or low-risk categories, and survival disparities were explored. Results Using multivariate Cox regression, we identified several prognostic factors for overall survival (OS) and cancer-specific survival (CSS) in elderly patients with high-grade gliomas, including age, tumor location, size, surgical technique, and therapies. Two digital nomograms were formulated anchored on these determinants. For OS, the C-index values in the training, internal, and external validation cohorts were 0.734, 0.729, and 0.701, respectively. We also derived AUC values for 3-, 6-, and 12-month periods. For CSS, the C-index values for the training and validation groups were 0.733 and 0.727, with analogous AUC metrics. The efficacy and clinical relevance of the nomograms were corroborated via ROC curves, calibration plots, and DCA for both cohorts. Conclusion Our investigation pinpointed pivotal risk factors in elderly glioma patients, leading to the development of an instrumental prognostic nomogram for OS and CSS. This instrument offers invaluable insights to optimize treatment strategies.
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Affiliation(s)
- Hongyu Zhang
- Department of Neurosurgery, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Xinzhan Jiang
- Department of Neurobiology, Harbin Medical University, Harbin, China
| | - Fubin Ren
- Department of Neurosurgery, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Qiang Gu
- Department of Neurosurgery, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Jiahao Yao
- Department of Neurosurgery, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Xinyu Wang
- Department of Neurosurgery, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Shuhuai Zou
- Department of Neurosurgery, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Yifan Gan
- Department of Neurosurgery, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Jianheng Gu
- Department of Neurosurgery, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Yongji Xu
- Department of Neurosurgery, Hulin People’s Hospital, Jixi, Heilongjiang, China
| | - Zhao Wang
- Department of Orthopaedic Surgery, Chungnam National University School of Medicine, Daejeon, Republic of Korea
| | - Shuang Liu
- Department of Neurosurgery, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Xuefeng Wang
- Department of Neurosurgery, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Baojian Wei
- School of Nursing, Shandong First Medical University & Shandong Academy of Medical Sciences, Taian, Shandong, China
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11
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Clark SE, Marcum ZA, Radich J, Etzioni R, Basu A. Temporal effect of imatinib adherence on time to remission in chronic myeloid leukemia patients. J Oncol Pharm Pract 2023:10781552231212207. [PMID: 37960888 PMCID: PMC11089074 DOI: 10.1177/10781552231212207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2023]
Abstract
INTRODUCTION Adherence to imatinib in chronic myeloid leukemia (CML) patients is estimated to be as low as 70% despite its clinical benefit, and our understanding of the impact of nonadherence in this population is limited. This study presents a novel application of the Alternating Conditional Estimation (ACE) algorithm in newly diagnosed CML patients to map the full dose-response curve (DRC) and determine how the strength of this curve varies over time. METHODS We applied the ACE algorithm alongside a backward elimination procedure to detect the presence of time dependence and nonlinearity in the relationship between imatinib adherence and time-to-remission. An extended Cox model allowing for the flexible modeling of identified effects via unpenalized B-splines was subsequently fit and assessed. RESULTS The substantial improvement in model fit associated with the extended Cox approach suggests that traditional Cox proportional hazards model assumptions do not hold in this setting. Results indicate that the DRC for imatinib is non-linearly increasing, with an attenuated effect above a 74% adherence rate. The strength of this effect on remission varied over time and was strongest in the initial months of treatment, reaching a peak around 90 days post-initiation (log hazard ratio: 2.12, 95% confidence interval: 1.47 to 2.66). CONCLUSION Most patients that achieved remission did so by 4 months (120 days) with consistently high adherence, suggesting that this could be a critical time and duration for realizing treatment benefit and patient monitoring. Findings regarding the relationship between adherence and remission can additionally help guide the design of future studies.
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Affiliation(s)
- Samantha E Clark
- The Comparative Health Outcomes, Policy, and Economics (CHOICE) Institute, University of Washington, Seattle, WA, USA
| | | | - Jerry Radich
- Fred Hutchinson Cancer Research Center, Seattle, Washington; University of Washington School of Medicine, Seattle, WA, USA
| | - Ruth Etzioni
- Fred Hutchinson Cancer Research Center, Seattle, Washington; University of Washington School of Medicine, Seattle, WA, USA
| | - Anirban Basu
- The Comparative Health Outcomes, Policy, and Economics (CHOICE) Institute, University of Washington, Seattle, WA, USA
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12
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Buick JE, Austin PC, Cheskes S, Ko DT, Atzema CL. Prediction models in prehospital and emergency medicine research: How to derive and internally validate a clinical prediction model. Acad Emerg Med 2023; 30:1150-1160. [PMID: 37266925 DOI: 10.1111/acem.14756] [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: 03/04/2023] [Revised: 05/24/2023] [Accepted: 05/29/2023] [Indexed: 06/03/2023]
Abstract
Clinical prediction models are created to help clinicians with medical decision making, aid in risk stratification, and improve diagnosis and/or prognosis. With growing availability of both prehospital and in-hospital observational registries and electronic health records, there is an opportunity to develop, validate, and incorporate prediction models into clinical practice. However, many prediction models have high risk of bias due to poor methodology. Given that there are no methodological standards aimed at developing prediction models specifically in the prehospital setting, the objective of this paper is to describe the appropriate methodology for the derivation and validation of clinical prediction models in this setting. What follows can also be applied to the emergency medicine (EM) setting. There are eight steps that should be followed when developing and internally validating a prediction model: (1) problem definition, (2) coding of predictors, (3) addressing missing data, (4) ensuring adequate sample size, (5) variable selection, (6) evaluating model performance, (7) internal validation, and (8) model presentation. Subsequent steps include external validation, assessment of impact, and cost-effectiveness. By following these steps, researchers can develop a prediction model with the methodological rigor and quality required for prehospital and EM research.
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Affiliation(s)
- Jason E Buick
- Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, Ontario, Canada
| | - Peter C Austin
- Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, Ontario, Canada
- ICES, Toronto, Ontario, Canada
- Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada
| | - Sheldon Cheskes
- Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada
- Division of Emergency Medicine, Department of Family and Community Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Dennis T Ko
- Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, Ontario, Canada
- ICES, Toronto, Ontario, Canada
- Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada
- Department of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Clare L Atzema
- Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, Ontario, Canada
- ICES, Toronto, Ontario, Canada
- Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada
- Division of Emergency Medicine, Department of Medicine, University of Toronto, Toronto, Ontario, Canada
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13
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Jogiat UM, Baracos V, Turner SR, Eurich D, Filafilo H, Rouhi A, Bédard A, Bédard ELR. Changes in Sarcopenia Status Predict Survival Among Patients with Resectable Esophageal Cancer. Ann Surg Oncol 2023; 30:7412-7421. [PMID: 37466867 DOI: 10.1245/s10434-023-13840-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Accepted: 06/01/2023] [Indexed: 07/20/2023]
Abstract
BACKGROUND Sarcopenia is a predictor of survival in patients with esophageal cancer. The objective of this research was to obtain insight into how changes in sarcopenia influence survival in resectable esophageal cancer. PATIENTS AND METHODS A retrospective cohort of patients with esophageal cancer undergoing tri-modality therapy was selected. Body composition parameters from the staging, post-neoadjuvant, and 1-year surveillance computed tomography (CT) scans were calculated. Overall survival (OS) and disease-free survival (DFS) were evaluated using the Kaplan-Meier method and log-rank test, as well as multivariable Cox-proportional hazards models. RESULTS Of 141 patients, 118 had images at all three timepoints. The median DFS and OS were 33.2 [95% confidence interval (CI) 19.1-73.7] and 34.5 (95% CI 23.1-57.6) months, respectively. Sarcopenia classified by the staging CT was present in 20 (17.0%) patients. This changed to 45 (38.1%) patients by the post-neoadjuvant scan, and 44 (37.3%) by the surveillance scan. In multivariable analysis, sarcopenia at the post-neoadjuvant scan was significantly associated with OS [hazards ratio (HR) 2.65, 95% CI 1.59-4.40; p < 0.001] and DFS (HR 1.80, 95% CI 1.03-3.13; p = 0.038). The net change in skeletal muscle index was associated with OS (HR 0.93, 95% CI 0.90-0.97; p < 0.001) and DFS (HR 0.94, 95% CI 0.91-0.98; p = 0.001). CONCLUSIONS Patients who develop sarcopenia as a consequence of skeletal muscle wasting during neoadjuvant therapy are at risk for worse DFS and OS. Patients who have a net loss of muscle over time may be at high risk for early disease recurrence.
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Affiliation(s)
- Uzair M Jogiat
- Division of Thoracic Surgery, Department of Surgery, University of Alberta, Edmonton, AB, Canada
| | - Vickie Baracos
- Division of Palliative Care Medicine, Department of Oncology, University of Alberta, Edmonton, AB, Canada
| | - Simon R Turner
- Division of Thoracic Surgery, Department of Surgery, University of Alberta, Edmonton, AB, Canada
| | - Dean Eurich
- School of Public Health, University of Alberta, Edmonton, AB, Canada
| | - Heather Filafilo
- Division of Thoracic Surgery, Department of Surgery, University of Alberta, Edmonton, AB, Canada
| | - Armin Rouhi
- Division of Thoracic Surgery, Department of Surgery, University of Alberta, Edmonton, AB, Canada
| | - Alexandre Bédard
- Division of Thoracic Surgery, Department of Surgery, University of Alberta, Edmonton, AB, Canada
| | - Eric L R Bédard
- Division of Thoracic Surgery, Department of Surgery, University of Alberta, Edmonton, AB, Canada.
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14
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Losciale JM, Truong LK, Zhang K, Scarr T, Xie H, Li LC, Mitchell C, Hunt MA, Whittaker JL. The association between knee muscle performance and clinical outcomes of knee function 1-4 years after a sport-related knee joint injury. Phys Ther Sport 2023; 64:147-155. [PMID: 37922747 DOI: 10.1016/j.ptsp.2023.10.003] [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: 08/07/2023] [Revised: 10/19/2023] [Accepted: 10/20/2023] [Indexed: 11/07/2023]
Abstract
OBJECTIVE Estimate the association between index leg knee muscle strength and rate of torque development (RTD), and self-reported and performance-based (i.e., hop) knee function in persons 1-4 years after a sport-related knee joint injury. METHODS Data were collected at baseline of a clinical trial. Assessments included the Knee injury and Osteoarthritis Outcome Score Sport & Recreation subscale (KOOSsport), 6-m timed hop (TH), and peak concentric isokinetic knee extensor and flexor torque and isometric RTD. Associations between peak torque and RTD with KOOSsport and TH were assessed using multivariable regression with nonlinear transformations. RESULTS 53 participants (64.2% female) were included. Knee extensor peak torque was nonlinearly related to TH time, with a strong inverse relationship at lower torque values that changed as torque increased. Results were inconsistent for flexor peak torque, extensor RTD and flexor RTD, with inconsistencies in relationship shape and estimates of association between primary and sensitivity analyses. There was no association between strength/RTD and KOOSsport. CONCLUSION There was a nonlinear relationship between knee extensor strength and hop function, with lower strength being associated with a stronger relationship. As strength values increased, the relationship attenuated. Knee extensor and flexor strength, or RTD, were not associated with self-reported function.
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Affiliation(s)
- Justin M Losciale
- Department of Physical Therapy, Faculty of Medicine, University of British Columbia, Vancouver, Canada; Arthritis Research Canada, Vancouver, Canada
| | - Linda K Truong
- Department of Physical Therapy, Faculty of Medicine, University of British Columbia, Vancouver, Canada; Arthritis Research Canada, Vancouver, Canada
| | - Kexin Zhang
- British Columbia Centre for Disease Control, Vancouver, Canada
| | - Thomas Scarr
- Allan McGavin Sports Medicine Clinic, Vancouver, Canada
| | - Hui Xie
- Arthritis Research Canada, Vancouver, Canada; Faculty of Health Sciences, Simon Fraser University, Burnaby, Canada
| | - Linda C Li
- Department of Physical Therapy, Faculty of Medicine, University of British Columbia, Vancouver, Canada; Arthritis Research Canada, Vancouver, Canada
| | - Cameron Mitchell
- Department of Kinesiology, Faculty of Education, University of British Columbia, Vancouver, Canada
| | - Michael A Hunt
- Department of Physical Therapy, Faculty of Medicine, University of British Columbia, Vancouver, Canada
| | - Jackie L Whittaker
- Department of Physical Therapy, Faculty of Medicine, University of British Columbia, Vancouver, Canada; Arthritis Research Canada, Vancouver, Canada.
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15
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Reis DJ, Yen P, Tizenberg B, Gottipati A, Postolache SY, De Riggs D, Nance M, Dagdag A, Plater L, Federline A, Grassmeyer R, Dagdag A, Akram F, Ozorio Dutra SV, Gragnoli C, RachBeisel JA, Volkov J, Bahraini NH, Stiller JW, Brenner LA, Postolache TT. Longitude-based time zone partitions and rates of suicide. J Affect Disord 2023; 339:933-942. [PMID: 37481129 PMCID: PMC10870927 DOI: 10.1016/j.jad.2023.07.080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Revised: 06/19/2023] [Accepted: 07/14/2023] [Indexed: 07/24/2023]
Abstract
BACKGROUND Increasing evidence suggests that conditions with decreased morning and increased evening light exposure, including shift work, daylight-saving time, and eveningness, are associated with elevated mortality and suicide risk. Given that the alignment between the astronomical, biological, and social time varies across a time zone, with later-shifted daylight exposure in the western partition, we hypothesized that western time zone partitions would have higher suicide rates than eastern partitions. METHODS United States (U.S.) county-level suicide and demographic data, from 2010 to 2018, were obtained from a Centers for Disease Control database. Using longitude and latitude, counties were sorted into the western, middle, or eastern partition of their respective time zones, as well as the northern and southern halves of the U.S. Linear regressions were used to estimate the associations between suicide rates and time zone partitions, adjusting for gender, race, ethnicity, age group, and unemployment rates. RESULTS Data were available for 2872 counties. Across the U.S., western partitions had statistically significantly higher rates of suicide compared to eastern partitions and averaged up to two additional yearly deaths per 100,000 people (p < .001). LIMITATIONS Ecological design and limited adjustment for socioeconomic factors. CONCLUSIONS To our knowledge, this is the first study of the relationship between longitude-based time zone partitions and suicide. The results were consistent with the hypothesized elevated suicide rates in the western partitions, and concordant with previous reports on cancer mortality and transportation fatalities. The next step is to retest the hypothesis with individual-level data, accounting for latitude, photoperiodic changes, daylight-saving time, geoclimatic variables, physical and mental health indicators, as well as socioeconomic adversity and protection.
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Affiliation(s)
- Daniel J Reis
- VA Rocky Mountain Mental Illness Research, Education, and Clinical Center for Veteran Suicide Prevention, Aurora, CO, USA; Department of Psychiatry, University of Colorado Anschutz Medical Campus, Aurora, CO, USA.
| | - Poyu Yen
- Mood and Anxiety Program, Department of Psychiatry, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Boris Tizenberg
- Mood and Anxiety Program, Department of Psychiatry, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Anurag Gottipati
- Mood and Anxiety Program, Department of Psychiatry, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Sonia Y Postolache
- Mood and Anxiety Program, Department of Psychiatry, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Demitria De Riggs
- VISN 5 Capitol Health Care Network Mental Illness Research Education and Clinical Center, Baltimore, MD, USA
| | - Morgan Nance
- VA Rocky Mountain Mental Illness Research, Education, and Clinical Center for Veteran Suicide Prevention, Aurora, CO, USA; Department of Physical Medicine and Rehabilitation, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Alexandra Dagdag
- Mood and Anxiety Program, Department of Psychiatry, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Lynn Plater
- VISN 5 Capitol Health Care Network Mental Illness Research Education and Clinical Center, Baltimore, MD, USA
| | - Amanda Federline
- VISN 5 Capitol Health Care Network Mental Illness Research Education and Clinical Center, Baltimore, MD, USA
| | - Riley Grassmeyer
- VA Rocky Mountain Mental Illness Research, Education, and Clinical Center for Veteran Suicide Prevention, Aurora, CO, USA
| | - Aline Dagdag
- Mood and Anxiety Program, Department of Psychiatry, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Faisal Akram
- Mood and Anxiety Program, Department of Psychiatry, University of Maryland School of Medicine, Baltimore, MD, USA; Psychiatry Residency Training, Saint Elizabeth's Hospital, Department of Behavioral Health, Washington, DC, USA
| | | | - Claudia Gragnoli
- Department of Public Health Sciences, Penn State College of Medicine, Hershey, PA, USA; Division of Endocrinology, Department of Medicine, Creighton University School of Medicine, Omaha, NE, USA
| | - Jill A RachBeisel
- Department of Psychiatry, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Janna Volkov
- Mood and Anxiety Program, Department of Psychiatry, University of Maryland School of Medicine, Baltimore, MD, USA; Psychiatry Residency Training, Saint Elizabeth's Hospital, Department of Behavioral Health, Washington, DC, USA
| | - Nazanin H Bahraini
- VA Rocky Mountain Mental Illness Research, Education, and Clinical Center for Veteran Suicide Prevention, Aurora, CO, USA; Department of Psychiatry, University of Colorado Anschutz Medical Campus, Aurora, CO, USA; Department of Physical Medicine and Rehabilitation, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - John W Stiller
- Mood and Anxiety Program, Department of Psychiatry, University of Maryland School of Medicine, Baltimore, MD, USA; Saint Elizabeth's Hospital, Neurology Consultation Service, Washington, DC, USA; Maryland State Athletic Commission, Baltimore, MD, USA
| | - Lisa A Brenner
- VA Rocky Mountain Mental Illness Research, Education, and Clinical Center for Veteran Suicide Prevention, Aurora, CO, USA; Department of Psychiatry, University of Colorado Anschutz Medical Campus, Aurora, CO, USA; Department of Physical Medicine and Rehabilitation, University of Colorado Anschutz Medical Campus, Aurora, CO, USA; Military and Veteran Microbiome: Consortium for Research and Education (MVM-CoRE), Denver, CO, USA
| | - Teodor T Postolache
- VA Rocky Mountain Mental Illness Research, Education, and Clinical Center for Veteran Suicide Prevention, Aurora, CO, USA; Mood and Anxiety Program, Department of Psychiatry, University of Maryland School of Medicine, Baltimore, MD, USA; VISN 5 Capitol Health Care Network Mental Illness Research Education and Clinical Center, Baltimore, MD, USA; Military and Veteran Microbiome: Consortium for Research and Education (MVM-CoRE), Denver, CO, USA
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White N, Parsons R, Collins G, Barnett A. Evidence of questionable research practices in clinical prediction models. BMC Med 2023; 21:339. [PMID: 37667344 PMCID: PMC10478406 DOI: 10.1186/s12916-023-03048-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Accepted: 08/24/2023] [Indexed: 09/06/2023] Open
Abstract
BACKGROUND Clinical prediction models are widely used in health and medical research. The area under the receiver operating characteristic curve (AUC) is a frequently used estimate to describe the discriminatory ability of a clinical prediction model. The AUC is often interpreted relative to thresholds, with "good" or "excellent" models defined at 0.7, 0.8 or 0.9. These thresholds may create targets that result in "hacking", where researchers are motivated to re-analyse their data until they achieve a "good" result. METHODS We extracted AUC values from PubMed abstracts to look for evidence of hacking. We used histograms of the AUC values in bins of size 0.01 and compared the observed distribution to a smooth distribution from a spline. RESULTS The distribution of 306,888 AUC values showed clear excesses above the thresholds of 0.7, 0.8 and 0.9 and shortfalls below the thresholds. CONCLUSIONS The AUCs for some models are over-inflated, which risks exposing patients to sub-optimal clinical decision-making. Greater modelling transparency is needed, including published protocols, and data and code sharing.
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Affiliation(s)
- Nicole White
- Australian Centre for Health Services Innovation and Centre for Healthcare Transformation, School of Public Health and Social Work, Faculty of Health, Queensland University of Technology, Kelvin Grove, Queensland, Australia
| | - Rex Parsons
- Australian Centre for Health Services Innovation and Centre for Healthcare Transformation, School of Public Health and Social Work, Faculty of Health, Queensland University of Technology, Kelvin Grove, Queensland, Australia
| | - Gary Collins
- Centre for Statistics in Medicine, Nuffield Department of Orthopaedics, Rheumatology & Musculoskeletal Sciences, University of Oxford, Oxford, UK
| | - Adrian Barnett
- Australian Centre for Health Services Innovation and Centre for Healthcare Transformation, School of Public Health and Social Work, Faculty of Health, Queensland University of Technology, Kelvin Grove, Queensland, Australia.
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Mistry HB. Radiosensitivity Index is Not Fit to be Used for Dose Adjustments: A Pan-Cancer Analysis. Clin Oncol (R Coll Radiol) 2023; 35:565-570. [PMID: 36922240 DOI: 10.1016/j.clon.2023.02.018] [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: 08/12/2022] [Revised: 02/02/2023] [Accepted: 02/28/2023] [Indexed: 03/11/2023]
Abstract
AIMS To explore the preclinical and latest clinical evidence of the radiation sensitivity signature termed 'radiosensitivity index' (RSI), to assess its suitability as an input into dose-adjustment algorithms. MATERIALS AND METHODS The original preclinical test-set data from the publication where RSI was derived were collected and reanalysed by comparing the observed versus predicted survival fraction at 2 Gy (SF2). In addition, the predictive capability of RSI was also compared to random guessing. Clinical data were collected from a recently published dataset that included RSI values, overall survival outcomes, radiotherapy dose and tumour site for six cancers (glioma, triple-negative breast, endometrial, melanoma, pancreatic and lung cancer). Cox proportional hazards models were used to assess: (i) does adjusting for RSI elucidate a dose response and (ii) does an interaction between RSI and dose exist with good precision. RESULTS Preclinically, RSI showed a negative correlation (Spearman's rho = -0.61) between observed and predicted SF2, which remained negative after removing leukaemia cell lines. Furthermore, random guesses showed better correlation to SF2 than RSI, 98% of the time on the full dataset and 80% after removing leukaemia cell lines. The preclinical data show that RSI does not explain the variance in SF2 better than random guessing. Clinically, a dose response was not seen after adjusting for RSI (hazard ratio = 1.00, 95% confidence interval 0.97-1.04; P = 0.876) and no evidence of an interaction between RSI and dose was found (P = 0.844). CONCLUSIONS These results suggest that RSI does not explain a sufficient amount of the outcome variance to be used within dose-adjustment algorithms.
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Affiliation(s)
- H B Mistry
- Division of Pharmacy, University of Manchester, Manchester, UK.
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Ahmad I, Chufal KS, Bajpai R, Chowdhary RL. In Regard to Park et al. Int J Radiat Oncol Biol Phys 2023; 117:286-287. [PMID: 37574242 DOI: 10.1016/j.ijrobp.2023.05.020] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Accepted: 05/09/2023] [Indexed: 08/15/2023]
Affiliation(s)
- Irfan Ahmad
- Department of Radiation Oncology, Rajiv Gandhi Cancer Institute & Research Centre, New Delhi, India
| | - Kundan Singh Chufal
- Department of Radiation Oncology, Rajiv Gandhi Cancer Institute & Research Centre, New Delhi, India
| | - Ram Bajpai
- Centre for Prognosis Research, School of Medicine, Keele University, Staffordshire, United Kingdom
| | - Rahul Lal Chowdhary
- Department of Radiation Oncology, Rajiv Gandhi Cancer Institute & Research Centre, New Delhi, India
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19
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van der Kroft G, Wee L, Rensen SS, Brecheisen R, van Dijk DPJ, Eickhoff R, Roeth AA, Ulmer FT, Dekker A, Neumann UP, Olde Damink SWM. Identifying radiomics signatures in body composition imaging for the prediction of outcome following pancreatic cancer resection. Front Oncol 2023; 13:1062937. [PMID: 37637046 PMCID: PMC10449585 DOI: 10.3389/fonc.2023.1062937] [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: 06/26/2023] [Indexed: 08/29/2023] Open
Abstract
Background Computerized radiological image analysis (radiomics) enables the investigation of image-derived phenotypes by extracting large numbers of quantitative features. We hypothesized that radiomics features may contain prognostic information that enhances conventional body composition analysis. We aimed to investigate whether body composition-associated radiomics features hold additional value over conventional body composition analysis and clinical patient characteristics used to predict survival of pancreatic ductal adenocarcinoma (PDAC) patients. Methods Computed tomography images of 304 patients undergoing elective pancreatic cancer resection were analysed. 2D radiomics features were extracted from skeletal muscle and subcutaneous and visceral adipose tissue (SAT and VAT) compartments from a single slice at the third lumbar vertebra. The study population was randomly split (80:20) into training and holdout subsets. Feature ranking with Least Absolute Shrinkage Selection Operator (LASSO) followed by multivariable stepwise Cox regression in 1000 bootstrapped re-samples of the training data was performed and tested on the holdout data. The fitted regression predictors were used as "scores" for a clinical (C-Score), body composition (B-Score), and radiomics (R-Score) model. To stratify patients into the highest 25% and lowest 25% risk of mortality compared to the middle 50%, the Harrell Concordance Index was used. Results Based on LASSO and stepwise cox regression for overall survival, ASA ≥3 and age were the most important clinical variables and constituted the C-score, and VAT-index (VATI) was the most important body composition variable and constituted the B-score. Three radiomics features (SATI_original_shape2D_Perimeter, VATI_original_glszm_SmallAreaEmphasis, and VATI_original_firstorder_Maximum) emerged as the most frequent set of features and yielded an R-Score. Of the mean concordance indices of C-, B-, and R-scores, R-score performed best (0.61, 95% CI 0.56-0.65, p<0.001), followed by the C-score (0.59, 95% CI 0.55-0.63, p<0.001) and B-score (0.55, 95% CI 0.50-0.60, p=0.03). Kaplan-Meier projection revealed that C-, B, and R-scores showed a clear split in the survival curves in the training set, although none remained significant in the holdout set. Conclusion It is feasible to implement a data-driven radiomics approach to body composition imaging. Radiomics features provided improved predictive performance compared to conventional body composition variables for the prediction of overall survival of PDAC patients undergoing primary resection.
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Affiliation(s)
- Gregory van der Kroft
- Department of General, Gastrointestinal, Hepatobiliary and Transplant Surgery, RWTH Aachen University Hospital, European Surgical Center Aachen Maastricht (ESCAM), Aachen, Germany
| | - Leonard Wee
- Department of Radiation Oncology (MAASTRO), GROW, School for Oncology and Developmental Biology, Maastricht University Medical Center, Maastricht, Netherlands
| | - Sander S. Rensen
- Department of Surgery, Maastricht University Medical Center, European Surgical Center Aachen Maastricht (ESCAM), Maastricht, Netherlands
- NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University, Maastricht, Netherlands
| | - Ralph Brecheisen
- Department of Surgery, Maastricht University Medical Center, European Surgical Center Aachen Maastricht (ESCAM), Maastricht, Netherlands
| | - David P. J. van Dijk
- Department of Surgery, Maastricht University Medical Center, European Surgical Center Aachen Maastricht (ESCAM), Maastricht, Netherlands
- NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University, Maastricht, Netherlands
| | - Roman Eickhoff
- Department of General, Gastrointestinal, Hepatobiliary and Transplant Surgery, RWTH Aachen University Hospital, European Surgical Center Aachen Maastricht (ESCAM), Aachen, Germany
| | - Anjali A. Roeth
- Department of General, Gastrointestinal, Hepatobiliary and Transplant Surgery, RWTH Aachen University Hospital, European Surgical Center Aachen Maastricht (ESCAM), Aachen, Germany
| | - Florian T. Ulmer
- Department of General, Gastrointestinal, Hepatobiliary and Transplant Surgery, RWTH Aachen University Hospital, European Surgical Center Aachen Maastricht (ESCAM), Aachen, Germany
| | - Andre Dekker
- Department of Radiation Oncology (MAASTRO), GROW, School for Oncology and Developmental Biology, Maastricht University Medical Center, Maastricht, Netherlands
| | - Ulf P. Neumann
- Department of General, Gastrointestinal, Hepatobiliary and Transplant Surgery, RWTH Aachen University Hospital, European Surgical Center Aachen Maastricht (ESCAM), Aachen, Germany
- Department of Surgery, Maastricht University Medical Center, European Surgical Center Aachen Maastricht (ESCAM), Maastricht, Netherlands
| | - Steven W. M. Olde Damink
- Department of General, Gastrointestinal, Hepatobiliary and Transplant Surgery, RWTH Aachen University Hospital, European Surgical Center Aachen Maastricht (ESCAM), Aachen, Germany
- Department of Surgery, Maastricht University Medical Center, European Surgical Center Aachen Maastricht (ESCAM), Maastricht, Netherlands
- NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University, Maastricht, Netherlands
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Luo M, Xiao H, Huang J, Jin L, Li Z, Tu S, Huang H, Zhu Y, Li Y, Zhuo Y. Multi-Quantitative Assessment of AS-OCTA Complemented AS-OCT for Monitoring Filtering Bleb Function After Trabeculectomy. Transl Vis Sci Technol 2023; 12:18. [PMID: 37471100 PMCID: PMC10365142 DOI: 10.1167/tvst.12.7.18] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/21/2023] Open
Abstract
Purpose The purpose of this study was to explore a quantitative grading system of the filtering bleb combined anterior segment optical coherence tomography angiography (AS-OCTA) vascular features and optical coherence tomography (OCT) morphological features. Methods One hundred three eyes of 103 patients diagnosed with primary open-angle glaucoma and undergone trabeculectomy over 6 months were divided into success and failure groups according to postoperative intraocular pressure (IOP) level. Vessel density (VD) and vessel diameter index (VDI) were examined by AS-OCTA. Bleb's morphology, including bleb height (BH), and microcyst-structure (MCS) were detected by AS-OCT. Multi-vascular model score (MVMS) was calculated by comprehensive factor analysis, and the comprehensive grading system (MVMS-MCS-BH) was analyzed by linear regression. The efficiency our method was verified by receiver operating characteristic (ROC) analysis. Results The VD and VDI were higher in the failure group and closely related to post-trabeculectomy IOP (all P = 0.000). The MVMS was mostly consisted of VD in all regions, and VDIs of nasal, central, and temporal positions in sequence. MVMS ≥0, BH <1.33, and non-MCS were significantly associated with IOP increasing (coefficient = -3.23, -3.69, and 8.10, all P = 0.000). MVMS-BH-MCS got a higher area under curve (AUC), sensitivity, and specificity (0.92, 100%, and 80.30%) than the slit-lamp method (0.62, 72.20%, and 46.43%, respectively). Conclusions The quantitative vascular characteristics detected by AS-OCTA were significant for the bleb monitor. The MVMS-BH-MCS grading system had achieved outstanding accuracy in reflecting the surgical results. Translational Relevance The multi-vascular biomarker and comprehensive evaluation combined vascular and morphological parameters yield useful information on surgical outcomes, and help ophthalmologists to monitor patients effectively.
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Affiliation(s)
- Man Luo
- State Key Laboratory of Ophthalmology; Zhongshan Ophthalmic Center, Sun Yat-Sen University; Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science; Guangdong Provincial Clinical Research Center for Ocular Diseases Guangzhou, China
- Center on Frontiers of Computing Studies, School of Computer Science, Peking University, Beijing, China
| | - Hui Xiao
- State Key Laboratory of Ophthalmology; Zhongshan Ophthalmic Center, Sun Yat-Sen University; Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science; Guangdong Provincial Clinical Research Center for Ocular Diseases Guangzhou, China
| | - Jingjing Huang
- State Key Laboratory of Ophthalmology; Zhongshan Ophthalmic Center, Sun Yat-Sen University; Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science; Guangdong Provincial Clinical Research Center for Ocular Diseases Guangzhou, China
| | - Ling Jin
- State Key Laboratory of Ophthalmology; Zhongshan Ophthalmic Center, Sun Yat-Sen University; Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science; Guangdong Provincial Clinical Research Center for Ocular Diseases Guangzhou, China
| | - Zhidong Li
- State Key Laboratory of Ophthalmology; Zhongshan Ophthalmic Center, Sun Yat-Sen University; Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science; Guangdong Provincial Clinical Research Center for Ocular Diseases Guangzhou, China
| | - Shu Tu
- State Key Laboratory of Ophthalmology; Zhongshan Ophthalmic Center, Sun Yat-Sen University; Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science; Guangdong Provincial Clinical Research Center for Ocular Diseases Guangzhou, China
| | - Haishun Huang
- State Key Laboratory of Ophthalmology; Zhongshan Ophthalmic Center, Sun Yat-Sen University; Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science; Guangdong Provincial Clinical Research Center for Ocular Diseases Guangzhou, China
| | - Yingting Zhu
- State Key Laboratory of Ophthalmology; Zhongshan Ophthalmic Center, Sun Yat-Sen University; Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science; Guangdong Provincial Clinical Research Center for Ocular Diseases Guangzhou, China
| | - Yiqing Li
- State Key Laboratory of Ophthalmology; Zhongshan Ophthalmic Center, Sun Yat-Sen University; Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science; Guangdong Provincial Clinical Research Center for Ocular Diseases Guangzhou, China
| | - Yehong Zhuo
- State Key Laboratory of Ophthalmology; Zhongshan Ophthalmic Center, Sun Yat-Sen University; Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science; Guangdong Provincial Clinical Research Center for Ocular Diseases Guangzhou, China
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21
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Szydlo RM. The presentation of results from studies in clinical haematology. Best Pract Res Clin Haematol 2023; 36:101472. [PMID: 37353296 DOI: 10.1016/j.beha.2023.101472] [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: 02/23/2023] [Accepted: 05/01/2023] [Indexed: 06/25/2023]
Abstract
Research is based on trying to find answers to specific questions or to test hypotheses. Studies are thus undertaken to generate data which, with appropriate statistical methods, will help to determine the validity of the science under investigation. The aim of this paper is not to provide answers on which statistical methods to use, but will concentrate on suggesting the best ways of presenting the results of appropriately analysed data. And presentation is the key, because however well conducted and analysed a study may be, incorrect or inappropriate presentation of the findings will severely hamper its publication potential. With illustrative examples, the fundamentals required in the presentation of study objectives, population selection, description of characteristics and missing values, survival analyses, unadjusted analyses, multivariate regression models and matched pair analyses, are presented.
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Affiliation(s)
- Richard M Szydlo
- Faculty of Medicine, Centre for Haematology, Imperial College, Du Cane Road, London, W12 0NN, United Kingdom.
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22
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Colomer R, Miranda J, Romero-Laorden N, Hornedo J, González-Cortijo L, Mouron S, Bueno MJ, Mondéjar R, Quintela-Fandino M. Usefulness and real-world outcomes of next generation sequencing testing in patients with cancer: an observational study on the impact of selection based on clinical judgement. EClinicalMedicine 2023; 60:102029. [PMID: 37304496 PMCID: PMC10248077 DOI: 10.1016/j.eclinm.2023.102029] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Revised: 05/10/2023] [Accepted: 05/15/2023] [Indexed: 06/13/2023] Open
Abstract
Background Next Generation Sequencing (NGS) panels are increasingly used in advanced patients with cancer to guide therapy. There is, however, controversy about when should these panels be used, and about their impact on the clinical course. Methods In an observational study of 139 patients with cancer having an NGS test [from January 1st, 2017 to December 30th, 2020, in two hospitals (Hospital Universitario de La Princesa and Hospital Universitario Quironsalud Madrid) from Spain], we evaluated whether the clinical course (progression-free survival, PFS) was influenced by drug-based criteria [druggable alterations, receiving a recommended drug, having a favourable ESCAT category (ESMO Scale for Clinical Actionability of molecular Targets)] or clinical judgement criteria. Findings In 111 of 139 cases that were successfully profiled, PFS was not significantly influenced by either having druggable alterations [median PFS for patients with druggable alterations was 170 (95% C.I.: 139-200) days compared to 299 (95% C.I.: 114-483) for those without; p = 0.37], receiving a proposed matching agent [median PFS for patients receiving a genomics-informed drug was 195 days (95% C.I.: 144-245), compared with 156 days for those that did not (95% C.I.: 85-226); p = 0.50], or having favourable ESCAT categories [median PFS for patients with ESCAT I-III was 183 days (95% C.I.: 104-261), compared with 180 (95% C.I.:144-215) for patients with ESCAT IV-X; p = 0.87]. In contrast, NGS testing performed within clinical judgement showed a significantly improved PFS [median PFS for patients that were profiled under the recommended scenarios was 319 days (95% C.I.: 0-658), compared to 123 days (95% C.I.: 89-156) in the non-recommended categories; p = 0.0020]. Interpretation According to our data, real-world outcomes after NGS testing provide evidence of the benefit of clinical judgement in patients with either advanced cancers that routinely need multiple genetic markers, patients with advanced rare cancers, or patients that are screened for molecular clinical trials. By contrast, NGS does not seem to be valuable when performed in cases with a poor PS, rapidly progressing cancer, short expected lifetime, or cases with no standard therapeutic options. Funding RC, NR-L and MQF are recipients of the PMP22/00032 grant, funded by the ISCIII and co-funded by the European Regional Development Fund (ERDF). The study also received funds from the CRIS Contra el Cancer Foundation.
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Affiliation(s)
- Ramon Colomer
- Department of Medicine, Universidad Autónoma de Madrid (UAM), Madrid, Spain
- Chair of Personalised Precision Medicine, Universidad Autonoma de Madrid (UAM – Fundación Instituto Roche), Madrid, Spain
- Medical Oncology Division, Hospital Universitario La Princesa, Madrid, Spain
- Breast Cancer Clinical Research Unit, Centro Nacional de Investigaciones Oncologicas (CNIO), Madrid, Spain
| | - Jesús Miranda
- University Hospital Quironsalud Madrid, Madrid, Spain
| | | | | | | | - Silvana Mouron
- Breast Cancer Clinical Research Unit, Centro Nacional de Investigaciones Oncologicas (CNIO), Madrid, Spain
| | - Maria J. Bueno
- Breast Cancer Clinical Research Unit, Centro Nacional de Investigaciones Oncologicas (CNIO), Madrid, Spain
| | - Rebeca Mondéjar
- Department of Medicine, Universidad Autónoma de Madrid (UAM), Madrid, Spain
- Chair of Personalised Precision Medicine, Universidad Autonoma de Madrid (UAM – Fundación Instituto Roche), Madrid, Spain
- Medical Oncology Division, Hospital Universitario La Princesa, Madrid, Spain
| | - Miguel Quintela-Fandino
- Department of Medicine, Universidad Autónoma de Madrid (UAM), Madrid, Spain
- Chair of Personalised Precision Medicine, Universidad Autonoma de Madrid (UAM – Fundación Instituto Roche), Madrid, Spain
- Breast Cancer Clinical Research Unit, Centro Nacional de Investigaciones Oncologicas (CNIO), Madrid, Spain
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Sauerbrei W, Kipruto E, Balmford J. Effects of influential points and sample size on the selection and replicability of multivariable fractional polynomial models. Diagn Progn Res 2023; 7:7. [PMID: 37069621 PMCID: PMC10111698 DOI: 10.1186/s41512-023-00145-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Accepted: 01/27/2023] [Indexed: 04/19/2023] Open
Abstract
BACKGROUND The multivariable fractional polynomial (MFP) approach combines variable selection using backward elimination with a function selection procedure (FSP) for fractional polynomial (FP) functions. It is a relatively simple approach which can be easily understood without advanced training in statistical modeling. For continuous variables, a closed test procedure is used to decide between no effect, linear, FP1, or FP2 functions. Influential points (IPs) and small sample sizes can both have a strong impact on a selected function and MFP model. METHODS We used simulated data with six continuous and four categorical predictors to illustrate approaches which can help to identify IPs with an influence on function selection and the MFP model. Approaches use leave-one or two-out and two related techniques for a multivariable assessment. In eight subsamples, we also investigated the effects of sample size and model replicability, the latter by using three non-overlapping subsamples with the same sample size. For better illustration, a structured profile was used to provide an overview of all analyses conducted. RESULTS The results showed that one or more IPs can drive the functions and models selected. In addition, with a small sample size, MFP was not able to detect some non-linear functions and the selected model differed substantially from the true underlying model. However, when the sample size was relatively large and regression diagnostics were carefully conducted, MFP selected functions or models that were similar to the underlying true model. CONCLUSIONS For smaller sample size, IPs and low power are important reasons that the MFP approach may not be able to identify underlying functional relationships for continuous variables and selected models might differ substantially from the true model. However, for larger sample sizes, a carefully conducted MFP analysis is often a suitable way to select a multivariable regression model which includes continuous variables. In such a case, MFP can be the preferred approach to derive a multivariable descriptive model.
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Affiliation(s)
- Willi Sauerbrei
- Institute of Medical Biometry and Statistics, Faculty of Medicine and Medical Center, University of Freiburg, Freiburg, Germany.
| | - Edwin Kipruto
- Institute of Medical Biometry and Statistics, Faculty of Medicine and Medical Center, University of Freiburg, Freiburg, Germany
| | - James Balmford
- Institute of Medical Biometry and Statistics, Faculty of Medicine and Medical Center, University of Freiburg, Freiburg, Germany
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Zheng BW, Huang W, Liu FS, Zhang TL, Wang XB, Li J, Lv GH, Yan YG, Zou MX. Clinicopathological and Prognostic Characteristics in Spinal Chondroblastomas: A Pooled Analysis of Individual Patient Data From a Single Institute and 27 Studies. Global Spine J 2023; 13:713-723. [PMID: 33896211 DOI: 10.1177/21925682211005732] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
STUDY DESIGN Retrospective pooled analysis of individual patient data. OBJECTIVES Spinal chondroblastoma (CB) is a very rare pathology and its clinicopathological and prognostic features remain unclear. Here, we sought to characterize the clinicopathological data of a large spinal CB cohort and determine factors affecting the local recurrence-free survival (LRFS) and overall survival (OS) of patients. METHODS Electronic searches using Medline, Embase, Google Scholar and Wanfang databases were performed to identify eligible studies per predefined criteria. A retrospective review was also conducted to include additional patients at our center. RESULTS Twenty-seven studies from the literature and 8 patients from our local institute were identified, yielding a total of 61 patients for analysis. Overall, there were no differences in clinicopathological characteristics between the local and literature cohorts, except for absence or presence of spinal canal invasion by tumor on imagings and chicken-wire calcification in tumor tissues. Univariate Kaplan-Meier analysis revealed that previous treatment, preoperative or postoperative neurological deficits, type of tumor resection, secondary aneurysmal bone cyst (ABC), chicken-wire calcification and radiotherapy correlated closely with LRFS, though only type of tumor resection, chicken-wire calcification and radiotherapy were predictive of outcome based on multivariate Cox analysis. Analyzing OS, we found that a history of preoperative treatment, concurrent ABC, chicken-wire calcification, type of tumor resection and adjuvant radiotherapy had a significant association with survival, whereas only type of tumor resection remained statistically significant after adjusting for other covariables. CONCLUSION These data may be helpful in prognostic risk stratification and individualized therapy decision making for patients.
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Affiliation(s)
- Bo-Wen Zheng
- Health Management Center, The First Affiliated Hospital, University of South China, Hengyang, China
- Department of Spine Surgery, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Wei Huang
- Health Management Center, The First Affiliated Hospital, University of South China, Hengyang, China
| | - Fu-Sheng Liu
- Department of Spine Surgery, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Tao-Lan Zhang
- Department of Radiation Oncology, Indiana University School of Medicine, IU Simon Comprehensive Cancer Center, IN, USA
| | - Xiao-Bin Wang
- Department of Spine Surgery, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Jing Li
- Department of Spine Surgery, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Guo-Hua Lv
- Department of Spine Surgery, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Yi-Guo Yan
- Department of Spine Surgery, The First Affiliated Hospital, University of South China, Hengyang, China
| | - Ming-Xiang Zou
- Department of Spine Surgery, The First Affiliated Hospital, University of South China, Hengyang, China
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Quimby AE, Grose E, Reddy D, Webster R, Malic C, Vaccani JP. Predictors of Surgical Site Infection in Pediatric Cochlear Implantation. Otolaryngol Head Neck Surg 2023; 168:484-490. [PMID: 35671142 DOI: 10.1177/01945998221104933] [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: 03/19/2022] [Accepted: 05/17/2022] [Indexed: 11/17/2022]
Abstract
OBJECTIVE To determine risk factors for surgical site infection (SSI) after cochlear implantation (CI) in pediatric patients. STUDY DESIGN Case-control study. SETTING A total of 150 hospitals contributing data to the ACS-NSQIP Pediatric database (American College of Surgeons National Surgical Quality Improvement Program) in North America and worldwide. METHODS Pediatric patients (aged <18 years) undergoing CI during the years 2012 to 2017 were identified in the ACS-NSQIP Pediatric database. Uni- and multivariable logistic regression analyses were used to determine the odds ratios (ORs) of SSI (including superficial incisional, deep incisional, organ/space) occurring up to 30 days postoperatively. RESULTS A total of 79 SSIs occurred over a 5-year period (n = 5146). Longer operative time significantly increased the odds of SSI (OR, 1.965; 95% CI, 1.205-3.289). Younger age was also found to raise the odds of SSI, with decreased odds associated with each 6-month increase in age (OR, 0.887; 95% CI, 0.814-0.958). CONCLUSION Longer operative time and younger age appear to significantly increase the odds of SSI in pediatric CI. Body mass index, recent steroid use, American Society of Anesthesiologists class, bilateral vs unilateral implantation, and hospital length of stay do not appear to significantly influence SSI risk. These findings must be interpreted in the context of the limitations inherent to adverse events reporting, which are mitigated by the stringent manner of data collection by the ACS-NSQIP, and those inherent to the definition of SSI. Future prospective studies should investigate the impact of reducing operative time on the risk of SSI and other complications in pediatric CI.
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Affiliation(s)
- Alexandra E Quimby
- Department of Otorhinolaryngology-Head and Neck Surgery, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Elysia Grose
- Department of Otolaryngology-Head and Neck Surgery, University of Toronto, Toronto, Canada
| | - Deepti Reddy
- Clinical Research Unit, Children's Hospital of Eastern Ontario Research Institute, Ottawa, Canada
| | - Richard Webster
- Clinical Research Unit, Children's Hospital of Eastern Ontario Research Institute, Ottawa, Canada
| | - Claudia Malic
- Division of Plastic and Reconstructive Surgery, Department of Surgery, University of Ottawa, Ottawa, Canada
- Children's Hospital of Eastern Ontario, Ottawa, Canada
| | - Jean-Philippe Vaccani
- Children's Hospital of Eastern Ontario, Ottawa, Canada
- Department of Otolaryngology-Head and Neck Surgery, University of Ottawa, Ontario, Canada
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Wrobel J, Harris C, Vandekar S. Statistical Analysis of Multiplex Immunofluorescence and Immunohistochemistry Imaging Data. Methods Mol Biol 2023; 2629:141-168. [PMID: 36929077 DOI: 10.1007/978-1-0716-2986-4_8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/18/2023]
Abstract
Advances in multiplexed single-cell immunofluorescence (mIF) and multiplex immunohistochemistry (mIHC) imaging technologies have enabled the analysis of cell-to-cell spatial relationships that promise to revolutionize our understanding of tissue-based diseases and autoimmune disorders. Multiplex images are collected as multichannel TIFF files; then denoised, segmented to identify cells and nuclei, normalized across slides with protein markers to correct for batch effects, and phenotyped; and then tissue composition and spatial context at the cellular level are analyzed. This chapter discusses methods and software infrastructure for image processing and statistical analysis of mIF/mIHC data.
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Affiliation(s)
- Julia Wrobel
- Department of Biostatistics and Informatics, University of Colorado Anschutz Medical Campus, Aurora, CO, USA.
| | - Coleman Harris
- Department of Biostatistics, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Simon Vandekar
- Department of Biostatistics, Vanderbilt University Medical Center, Nashville, TN, USA
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Riley RD, Cole TJ, Deeks J, Kirkham JJ, Morris J, Perera R, Wade A, Collins GS. On the 12th Day of Christmas, a Statistician Sent to Me . . . BMJ 2022; 379:e072883. [PMID: 36593578 PMCID: PMC9844255 DOI: 10.1136/bmj-2022-072883] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Richard D Riley
- Institute of Applied Health Research, College of Medical and Dental Sciences, University of Birmingham, Birmingham, UK
| | - Tim J Cole
- UCL Great Ormond Street Institute of Child Health, London, UK
| | - Jon Deeks
- Institute of Applied Health Research, College of Medical and Dental Sciences, University of Birmingham, Birmingham, UK
| | - Jamie J Kirkham
- Centre for Biostatistics, University of Manchester, Manchester Academic Health Science Centre, Manchester, UK
| | | | - Rafael Perera
- Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, UK
| | - Angie Wade
- UCL Great Ormond Street Institute of Child Health, London, UK
| | - Gary S Collins
- Centre for Statistics in Medicine, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, UK
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Association between intraoperative oliguria and postoperative acute kidney injury in non-cardiac surgical patients: a systematic review and meta-analysis. J Anesth 2022; 37:219-233. [PMID: 36520229 DOI: 10.1007/s00540-022-03150-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2022] [Accepted: 12/01/2022] [Indexed: 12/23/2022]
Abstract
PURPOSE This systematic review and meta-analysis aimed to evaluate the association between intraoperative oliguria and the risk of postoperative acute kidney injury (AKI) in patients undergoing non-cardiac surgery. METHODS The MEDLINE and EMBASE databases were searched up to August 2022 for studies in adult patients undergoing non-cardiac surgery, where the association between intraoperative urine output and the risk of postoperative AKI was assessed. Both randomised and non-randomised studies were eligible for inclusion. Study selection and risk of bias assessment were independently performed by two investigators. The risk of bias was evaluated using the Newcastle-Ottawa scale. We performed meta-analysis of the reported multivariate adjusted odds ratios for the association between intraoperative oliguria (defined as urine output < 0.5 mL/kg/hr) and the risk of postoperative AKI using the inverse-variance method with random effects models. We conducted sensitivity analyses using varying definitions of oliguria as well as by pooling unadjusted odds ratios to establish the robustness of the primary meta-analysis. We also conducted subgroup analyses according to surgery type and definition of AKI to explore potential sources of clinical or methodological heterogeneity. RESULTS Eleven studies (total 49,252 patients from 11 observational studies including a post hoc analysis of a randomised controlled trial) met the selection criteria. Seven of these studies contributed data from a total 17,148 patients to the primary meta-analysis. Intraoperative oliguria was associated with a significantly elevated risk of postoperative AKI (pooled adjusted odds ratio [OR] 1.74; 95% confidence interval [CI] 1.36-2.23, p < 0.0001, 8 studies). Sensitivity analyses supported the robustness of the primary meta-analysis. There was no evidence of any significant subgroup differences according to surgery type or definition of AKI. CONCLUSIONS This study demonstrated a significant association between intraoperative oliguria and the risk of postoperative AKI, regardless of the definitions of oliguria or AKI used. Further prospective and multi-centre studies using standardised definitions of intraoperative oliguria are required to define the thresholds of oliguria and establish strategies to minimise the risk of AKI.
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Cai S, Li J, Gao J, Pan W, Zhang Y. Prediction models for postoperative delirium after cardiac surgery: Systematic review and critical appraisal. Int J Nurs Stud 2022; 136:104340. [PMID: 36208541 DOI: 10.1016/j.ijnurstu.2022.104340] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Revised: 08/01/2022] [Accepted: 08/02/2022] [Indexed: 12/14/2022]
Abstract
BACKGROUND Many studies have developed or validated prediction models to estimate the risk of delirium after cardiac surgery, but the quality of the model development and model applicability remain unknown. OBJECTIVES To systematically review and critically evaluate currently available prediction models for delirium after cardiac surgery. DATA SOURCES PubMed, EMBASE, and MEDLINE were systematically searched. This systematic review was registered in PROSPERO (Registration ID: CRD42021251226). STUDY SELECTION Prospective or retrospective cohort studies were considered eligible if they developed or validated prediction models or scoring systems for delirium in the ICU. We included studies involving adults (age ≥18 years) undergoing cardiac surgery and excluded studies that did not validate a prediction model. DATA EXTRACTION Data extraction was independently performed by two authors using a standardized data extraction form based on the Critical Appraisal and Data Extraction for Systematic Reviews of Prediction Modeling Studies checklist. Quality of the models was assessed with the Prediction Model Risk of Bias Assessment Tool (PROBAST). DATA SYNTHESIS Of 5469 screened studies, 13 studies described 10 prediction models. The postoperative delirium incidence varied from 11.3 % to 51.6 %. The most frequently used predictors were age and cognitive impairment. The reported areas under the curve or C-statistics were between of 0.74 and 0.91 in the derivation set. The reported AUCs in the external validation set were between 0.54 and 0.90. All the studies had a high risk of bias, mainly owing to poor reporting of the outcome domain and analysis domain; 10 studies were of high concern regarding applicability. CONCLUSIONS The current models for predicting postoperative delirium in the ICU after cardiac surgery had a high risk of bias according to the PROBAST. Future studies should focus on improving current prediction models or developing new models with rigorous methodology.
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Affiliation(s)
- Shining Cai
- Department of Nursing, Zhongshan Hospital, Fudan University, Shanghai 200032, China; Department of Critical Care Medicine, Zhongshan Hospital, Fudan University, Shanghai 200032, China; The Centre for Critical Care Zhongshan Hospital: A Joanna Briggs Institute Center of Excellence, China
| | - Jingjing Li
- Department of Nursing, Zhongshan Hospital, Fudan University, Shanghai 200032, China; Department of Critical Care Medicine, Zhongshan Hospital, Fudan University, Shanghai 200032, China; The Centre for Critical Care Zhongshan Hospital: A Joanna Briggs Institute Center of Excellence, China
| | - Jian Gao
- Center of Clinical Epidemiology and Evidence-based Medicine, Fudan University, Shanghai 200032, China; Department of Nutrition, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Wenyan Pan
- Department of Nursing, Zhongshan Hospital, Fudan University, Shanghai 200032, China; The Centre for Critical Care Zhongshan Hospital: A Joanna Briggs Institute Center of Excellence, China.
| | - Yuxia Zhang
- Department of Nursing, Zhongshan Hospital, Fudan University, Shanghai 200032, China; The Centre for Critical Care Zhongshan Hospital: A Joanna Briggs Institute Center of Excellence, China.
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Rohde S, Sandica E, Veen K, Kraemer US, Thiruchelvam T, Miera O, Lopez MLP, Sliwka J, Amodeo A, Bogers AJJC, de By TMMH. Outcomes in small children on Berlin Heart EXCOR support: age and body surface area as clinical predictive factors. Eur J Cardiothorac Surg 2022; 63:6809124. [PMID: 36346169 PMCID: PMC9825200 DOI: 10.1093/ejcts/ezac516] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Revised: 09/25/2022] [Accepted: 11/07/2022] [Indexed: 11/10/2022] Open
Abstract
OBJECTIVES The Berlin Heart EXCOR (BHE) offers circulatory support across all paediatric ages. Clinically, the necessary care and the outcomes differ in various age groups. The EUROMACS database was used to study age- and size-related outcomes for this specific device. METHODS All patients <19 years of age from the EUROMACS database supported with a BHE between 2000 and November 2021 were included. Maximally selected rank statistics were used to determine body surface area (BSA) cut-off values. Multivariable Cox proportional hazard regression using ridge penalization was performed to identify factors associated with outcomes. RESULTS In total, 303 patients were included [mean age: 2.0 years (interquartile range: 0.6-8.0, males: 48.5%)]. Age and BSA were not significantly associated with mortality (n = 74, P = 0.684, P = 0.679). Factors associated with a transplant (n = 175) were age (hazard ratio 1.07, P = 0.006) and aetiology other than congenital heart disease (hazard ratio 1.46, P = 0.020). Recovery rates (n = 42) were highest in patients with a BSA of <0.53 m2 (21.8% vs 4.3-7.6% at 1 year, P = 0.00534). Patients with a BSA of ≥0.73 m2 had a lower risk of early pump thrombosis but a higher risk of early bleeding compared to children with a BSA of <0.73 m2. CONCLUSIONS Mortality rates in Berlin Heart-supported patients cannot be predicted by age or BSA. Recovery rates are remarkably high in the smallest patient category (BSA <0.53 m2). This underscores that the BHE is a viable therapeutic option, even for the smallest and youngest patients.
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Affiliation(s)
- Sofie Rohde
- Corresponding author. Department of Cardio-Thoracic Surgery, Erasmus University Medical Center, Rotterdam, Netherlands. E-mail: (S. Rohde)
| | - Eugen Sandica
- Clinic for Pediatric Cardiac Surgery and Congenital Heart Defects, Heart and Diabetes Centre North Rhine-Westphalia, Ruhr-University of Bochum, Bad Oeynhausen, Germany
| | - Kevin Veen
- Department of Cardio-Thoracic Surgery, Erasmus University Medical Center, Rotterdam, Netherlands
| | - Ulrike S Kraemer
- Department of Paediatric Intensive Care, Erasmus University Medical Center, Rotterdam, Netherlands
| | | | - Oliver Miera
- Department of Congenital Heart Disease and Pediatric Cardiology, Deutsches Herzzentrum Berlin, Berlin, Germany
| | - Maria L Polo Lopez
- Department of Pediatric and Congenital Cardiac Surgery, La Paz University Hospital, Madrid, Spain
| | - Joanna Sliwka
- Department of Cardiac Surgery, Transplantology and Vascular Surgery, Silesian Center for Heart Diseases, Zabrze, Poland
| | | | - Ad J J C Bogers
- Department of Cardio-Thoracic Surgery, Erasmus University Medical Center, Rotterdam, Netherlands
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Nelson SP, Ramakrishnan V, Nietert P, Kamen D, Ramos P, Wolf B. A comparison of joint dichotomization and single dichotomization of interacting variables to discriminate a disease outcome. Int J Biostat 2022; 18:613-625. [PMID: 35536987 PMCID: PMC10198136 DOI: 10.1515/ijb-2021-0071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Accepted: 02/16/2022] [Indexed: 01/10/2023]
Abstract
Dichotomization is often used on clinical and diagnostic settings to simplify interpretation. For example, a person with systolic and diastolic blood pressure above 140 over 90 may be prescribed medication. Blood pressure as well as other factors such as age and cholesterol and their interactions may lead to increased risk of certain diseases. When using a dichotomized variable to determine a diagnosis, if the interactions with other variables are not considered, then an incorrect threshold for the continuous variable may be selected. In this paper, we compare single dichotomization with joint dichotomization; the process of simultaneously optimizing cutpoints for multiple variables. A simulation study shows that simultaneous dichotomization of continuous variables is more accurate in recovering both 'true' thresholds given they exist.
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Affiliation(s)
- Sybil Prince Nelson
- Department of Mathematics, Washington and Lee University, 204 W Washington St, Lexington, VA 24450
| | - Viswanathan Ramakrishnan
- Department of Mathematics, Washington and Lee University, 204 W Washington St, Lexington, VA 24450
| | - Paul Nietert
- Department of Mathematics, Washington and Lee University, 204 W Washington St, Lexington, VA 24450
| | - Diane Kamen
- Department of Mathematics, Washington and Lee University, 204 W Washington St, Lexington, VA 24450
| | - Paula Ramos
- Department of Mathematics, Washington and Lee University, 204 W Washington St, Lexington, VA 24450
| | - Bethany Wolf
- Department of Mathematics, Washington and Lee University, 204 W Washington St, Lexington, VA 24450
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Lee SA, Yang HR, Im K, Choi EJ, Jeon JY, Han SH, Kim HW, Lee GH, Ryu HU. Comparisons of impulsivity among patients with different subtypes of epilepsy. Epilepsy Res 2022; 186:106997. [DOI: 10.1016/j.eplepsyres.2022.106997] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Revised: 07/31/2022] [Accepted: 08/09/2022] [Indexed: 11/28/2022]
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Polak TB, Van Rosmalen J, Dirven S, Herzig JK, Cloos J, Meshinchi S, Döhner K, Janssen JJWM, Cucchi DGJ. Association of FLT3-internal tandem duplication length with overall survival in acute myeloid leukemia: a systematic review and meta-analysis. Haematologica 2022; 107:2506-2510. [PMID: 35796012 PMCID: PMC9521221 DOI: 10.3324/haematol.2022.281218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Indexed: 11/30/2022] Open
Affiliation(s)
- Tobias B Polak
- Erasmus School of Health Policy and Management, Erasmus University Rotterdam, Rotterdam, The Netherlands; Department of Biostatistics, Erasmus University Rotterdam, Rotterdam, The Netherlands; Department of Epidemiology, Erasmus University Rotterdam, Rotterdam, The Netherlands; Real-World Data Department, myTomorrows, Amsterdam
| | - Joost Van Rosmalen
- Department of Biostatistics, Erasmus University Rotterdam, Rotterdam, The Netherlands; Department of Epidemiology, Erasmus University Rotterdam, Rotterdam
| | - Stijn Dirven
- Department of Hematology, Cancer Center Amsterdam, Amsterdam University Medical Centers, location VUmc, Amsterdam
| | - Julia K Herzig
- Department of Internal Medicine III, University Hospital of Ulm, Ulm
| | - Jacqueline Cloos
- Department of Hematology, Cancer Center Amsterdam, Amsterdam University Medical Centers, location VUmc, Amsterdam
| | - Soheil Meshinchi
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, Washington
| | - Konstanze Döhner
- Department of Internal Medicine III, University Hospital of Ulm, Ulm
| | - Jeroen J W M Janssen
- Department of Hematology, Cancer Center Amsterdam, Amsterdam University Medical Centers, location VUmc, Amsterdam
| | - David G J Cucchi
- Department of Hematology, Cancer Center Amsterdam, Amsterdam University Medical Centers, location VUmc, Amsterdam.
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Mid-Regional Pro-Adrenomedullin as a Prognostic Factor for Severe COVID-19 ARDS. Antibiotics (Basel) 2022; 11:antibiotics11091166. [PMID: 36139946 PMCID: PMC9495198 DOI: 10.3390/antibiotics11091166] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2022] [Revised: 08/25/2022] [Accepted: 08/26/2022] [Indexed: 11/17/2022] Open
Abstract
Mid-regional proadrenomedullin (MR-proADM) protects against endothelial permeability and has been associated with prognosis in bacterial sepsis. As endothelial dysfunction is central in the pathophysiology of severe SARS-CoV-2 infection, we sought to evaluate MR-proADM both as a prognostic biomarker and as a marker of bacterial superinfection. Consecutive patients admitted to the ICU for severe SARS-CoV-2 pneumonia were prospectively included and serum was bio-banked on days 1, 3, and 7. MR-proADM levels were measured blindly from clinical outcomes in batches at the end of follow-up. Among the 135 patients included between April 2020 and May 2021, 46 (34.1%) had died at day 60. MR-proADM levels on days 1, 3, and 7 were significantly higher in day-60 non-survivors. The area under the curve (AUC) of the receiver operating characteristic (ROC) curve (0.744, p < 0.001) of day-1 MR-proADM compared favorably with the AUC ROC curve of day-1 procalcitonin (0.691, p < 0.001). Serial MR-proADM measurements on days 3 and 7 may add prognostic information. After adjusting for CRP, LDH, and lymphocyte values, day-1 MR-proADM remained significantly associated with day-60 mortality. MR-proADM concentrations were significantly higher in patients with respiratory superinfections (on days 3 and 7) and bloodstream infections (on days 1, 3, and 7) than in patients without infection. Our results suggest that MR-proADM is a good predictor of outcome in severe SARS-CoV-2 infection and could be a useful tool to assess bacterial superinfection in COVID-19 patients.
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Schuster NA, Rijnhart JJM, Twisk JWR, Heymans MW. Modeling non-linear relationships in epidemiological data: The application and interpretation of spline models. FRONTIERS IN EPIDEMIOLOGY 2022; 2:975380. [PMID: 38455295 PMCID: PMC10910897 DOI: 10.3389/fepid.2022.975380] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Accepted: 08/01/2022] [Indexed: 03/08/2024]
Abstract
Objective Traditional methods to deal with non-linearity in regression analysis often result in loss of information or compromised interpretability of the results. A recommended but underutilized method for modeling non-linear associations in regression models is spline functions. We explain spline functions in a non-mathematical way and illustrate the application and interpretation to an empirical data example. Methods Using data from the Amsterdam Growth and Health Longitudinal Study, we examined the non-linear relationship between the sum of four skinfolds and VO2max, which are measures of body fat and cardiorespiratory fitness, respectively. We compared traditional methods (i.e., quadratic regression and categorization) to spline methods [1- and 3-knot linear spline (LSP) models and a 3-knot restricted cubic spline (RCS) model] in terms of the interpretability of the results and their explained variance (r a d j 2 ). Results The spline models fitted the data better than the traditional methods. Increasing the number of knots in the LSP model increased the explained variance (from r a d j 2 = 0 . 578 for the 1-knot model to r a d j 2 = 0 . 582 for the 3-knot model). The RCS model fitted the data best (r a d j 2 = 0 . 591 ), but results in regression coefficients that are harder to interpret. Conclusion Spline functions should be considered more often as they are flexible and can be applied in commonly used regression analysis. RCS regression is generally recommended for prediction research (i.e., to obtain the predicted outcome for a specific exposure value), whereas LSP regression is recommended if one is interested in the effects in a population.
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Affiliation(s)
- Noah A. Schuster
- Amsterdam UMC location Vrije Universiteit Amsterdam, Epidemiology and Data Science, Amsterdam, Netherlands
- Amsterdam Public Health, Methodology, Amsterdam, Netherlands
| | - Judith J. M. Rijnhart
- Amsterdam UMC location Vrije Universiteit Amsterdam, Epidemiology and Data Science, Amsterdam, Netherlands
- Amsterdam Public Health, Methodology, Amsterdam, Netherlands
| | - Jos W. R. Twisk
- Amsterdam UMC location Vrije Universiteit Amsterdam, Epidemiology and Data Science, Amsterdam, Netherlands
- Amsterdam Public Health, Methodology, Amsterdam, Netherlands
| | - Martijn W. Heymans
- Amsterdam UMC location Vrije Universiteit Amsterdam, Epidemiology and Data Science, Amsterdam, Netherlands
- Amsterdam Public Health, Methodology, Amsterdam, Netherlands
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Gao B, Wang MD, Li Y, Huang F. Risk stratification system and web-based nomogram constructed for predicting the overall survival of primary osteosarcoma patients after surgical resection. Front Public Health 2022; 10:949500. [PMID: 35991065 PMCID: PMC9389295 DOI: 10.3389/fpubh.2022.949500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2022] [Accepted: 07/18/2022] [Indexed: 12/02/2022] Open
Abstract
Background Previous prediction models of osteosarcoma have not focused on survival in patients undergoing surgery, nor have they distinguished and compared prognostic differences among amputation, radical and local resection. This study aimed to establish and validate the first reliable prognostic nomogram to accurately predict overall survival (OS) after surgical resection in patients with osteosarcoma. On this basis, we constructed a risk stratification system and a web-based nomogram. Methods We enrolled all patients with primary osteosarcoma who underwent surgery between 2004 and 2015 in the Surveillance, Epidemiology, and End Results (SEER) database. In patients with primary osteosarcoma after surgical resection, univariate and multivariate cox proportional hazards regression analyses were utilized to identify independent prognostic factors and construct a novel nomogram for the 1-, 3-, and 5-year OS. Then the nomogram's predictive performance and clinical utility were evaluated by the concordance index (C-index), receiver operating characteristic (ROC) curves, calibration curves, and decision curve analysis (DCA). Result This study recruited 1,396 patients in all, with 837 serving as the training set (60%) and 559 as the validation set (40%). After COX regression analysis, we identified seven independent prognostic factors to develop the nomogram, including age, primary site, histological type, disease stage, AJCC stage, tumor size, and surgical method. The C-index indicated that this nomogram is considerably more accurate than the AJCC stage in predicting OS [Training set (HR: 0.741, 95% CI: 0.726–0.755) vs. (HR: 0.632, 95% CI: 0.619–0.645); Validation set (HR: 0.735, 95% CI: 0.718–0.753) vs. (HR: 0.635, 95% CI: 0.619–0.652)]. Moreover, the area under ROC curves, the calibration curves, and DCA demonstrated that this nomogram was significantly superior to the AJCC stage, with better predictive performance and more net clinical benefits. Conclusion This study highlighted that radical surgery was the first choice for patients with primary osteosarcoma since it provided the best survival prognosis. We have established and validated a novel nomogram that could objectively predict the overall survival of patients with primary osteosarcoma after surgical resection. Furthermore, a risk stratification system and a web-based nomogram could be applied in clinical practice to assist in therapeutic decision-making.
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Affiliation(s)
- Bing Gao
- Department of Orthopedics, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Meng-die Wang
- Department of Neurology, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Yanan Li
- Department of Pediatrics, The First Hospital of Jilin University, Changchun, China
| | - Fei Huang
- Department of Orthopedics, China-Japan Union Hospital of Jilin University, Changchun, China
- *Correspondence: Fei Huang
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Can we predict who will benefit from cognitive-behavioural therapy? A systematic review and meta-analysis of machine learning studies. Clin Psychol Rev 2022; 97:102193. [DOI: 10.1016/j.cpr.2022.102193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Revised: 06/29/2022] [Accepted: 08/04/2022] [Indexed: 11/23/2022]
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Tustumi F. Choosing the most appropriate cut-point for continuous variables. Rev Col Bras Cir 2022; 49:e20223346. [PMID: 35894391 PMCID: PMC10578850 DOI: 10.1590/0100-6991e-20223346-en] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2022] [Accepted: 05/06/2022] [Indexed: 11/21/2022] Open
Affiliation(s)
- Francisco Tustumi
- - Universidade de São Paulo, Gastroenterologia - São Paulo - SP - Brasil
- - Hospital Israelita Albert Einstein, Cirurgia - São Paulo - SP - Brasil
- - Centro Universitário Lusíada, Departamento de Medicina Baseada em Evidências - Santos - SP - Brasil
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Patel U, Kannan S, Rane SU, Mittal N, Gera P, Patil A, Manna S, Shejwal V, Noronha V, Joshi A, Patil VM, Prabhash K, Mahimkar MB. Prognostic and predictive roles of cancer stem cell markers in head and neck squamous cell carcinoma patients receiving chemoradiotherapy with or without nimotuzumab. Br J Cancer 2022; 126:1439-1449. [PMID: 35140342 PMCID: PMC9091234 DOI: 10.1038/s41416-022-01730-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Revised: 01/07/2022] [Accepted: 01/28/2022] [Indexed: 12/27/2022] Open
Abstract
BACKGROUND Anti-EGFR-based therapies have limited success in HNSCC patients. Predictive biomarkers are needed to identify the patients most likely to benefit from these therapies. Here, we present predictive and prognostic associations of different cancer stem cell markers in HPV-negative locally advanced (LA) HNSCC patients. METHODS Pretreatment tumour tissues of 404 HPV-negative LA-HNSCCs patients, a subset of-phase 3-randomised study comparing cisplatin-radiation(CRT) and nimotuzumab plus cisplatin-radiation(NCRT) were examined. The expression levels of CD44, CD44v6, CD98hc, ALDH1A1, SOX2 and OCT4A were evaluated using immunohistochemistry. Progression-free survival(PFS), loco-regional control(LRC),- and overall survival(OS) were estimated by Kaplan-Meier method. Hazard ratios were estimated by Cox proportional hazard models. RESULTS NCRT showed significantly improved OS with low membrane expression of CD44 compared to CRT [HR (95% CI) = 0.63 (0.46-0.88)]. Patients with low CD44v6 also showed better outcomes with NCRT [LRC: HR (95% CI) = 0.25 (0.10-0.62); OS: HR (95% CI) = 0.38 (0.19-0.74)]. No similar benefit with NCRT observed in patients with high CD44 or CD44v6 expression. Bootstrap resampling confirmed the predictive effect of CD44 (Interaction P = 0.015) and CD44v6 (Interaction P = 0.041) for OS. Multivariable Cox analysis revealed an independent negative prognostic role of CD98hc membrane expression for LRC [HR (95% CI) = 0.63(0.39-1.0)] and OS[HR (95% CI) = 0.62 (0.40-0.95)]. CONCLUSIONS CD44 and CD44v6 are potential predictive biomarkers for NCRT response. CD98hc emerged as an independent negative prognostic biomarker. CLINICAL TRIAL REGISTRATION Registered with the Clinical Trial Registry of India (Trial registration identifier-CTRI/2014/09/004980).
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Affiliation(s)
- Usha Patel
- grid.410871.b0000 0004 1769 5793Mahimkar Lab, Cancer Research Institute, Advanced Centre for Treatment, Research and Education in Cancer, Tata Memorial Centre, Navi Mumbai, India ,grid.450257.10000 0004 1775 9822Homi Bhabha National Institute, Training School Complex, Anushakti Nagar, Mumbai, India
| | - Sadhana Kannan
- grid.450257.10000 0004 1775 9822Homi Bhabha National Institute, Training School Complex, Anushakti Nagar, Mumbai, India ,grid.410871.b0000 0004 1769 5793Biostatistician, Clinical Research Secretariat, Advanced Centre for Treatment, Research and Education in Cancer, Tata Memorial Centre, Navi Mumbai, India
| | - Swapnil U. Rane
- grid.450257.10000 0004 1775 9822Homi Bhabha National Institute, Training School Complex, Anushakti Nagar, Mumbai, India ,grid.410871.b0000 0004 1769 5793Department of Pathology, Advanced Centre for Treatment, Research and Education in Cancer, Tata Memorial Centre, Navi Mumbai, India
| | - Neha Mittal
- grid.450257.10000 0004 1775 9822Homi Bhabha National Institute, Training School Complex, Anushakti Nagar, Mumbai, India ,grid.410871.b0000 0004 1769 5793Department of Pathology, Tata Memorial Hospital, Tata Memorial Centre, Mumbai, India
| | - Poonam Gera
- grid.450257.10000 0004 1775 9822Homi Bhabha National Institute, Training School Complex, Anushakti Nagar, Mumbai, India ,grid.410871.b0000 0004 1769 5793Biorepository, Advanced Centre for Treatment, Research and Education in Cancer, Tata Memorial Centre, Navi Mumbai, India
| | - Asawari Patil
- grid.450257.10000 0004 1775 9822Homi Bhabha National Institute, Training School Complex, Anushakti Nagar, Mumbai, India ,grid.410871.b0000 0004 1769 5793Department of Pathology, Advanced Centre for Treatment, Research and Education in Cancer, Tata Memorial Centre, Navi Mumbai, India
| | - Subhakankha Manna
- grid.410871.b0000 0004 1769 5793Mahimkar Lab, Cancer Research Institute, Advanced Centre for Treatment, Research and Education in Cancer, Tata Memorial Centre, Navi Mumbai, India
| | - Vishwayani Shejwal
- grid.410871.b0000 0004 1769 5793Mahimkar Lab, Cancer Research Institute, Advanced Centre for Treatment, Research and Education in Cancer, Tata Memorial Centre, Navi Mumbai, India
| | - Vanita Noronha
- grid.450257.10000 0004 1775 9822Homi Bhabha National Institute, Training School Complex, Anushakti Nagar, Mumbai, India ,grid.410871.b0000 0004 1769 5793Department of Medical Oncology, Tata Memorial Hospital, Tata Memorial Centre, Mumbai, India
| | - Amit Joshi
- grid.450257.10000 0004 1775 9822Homi Bhabha National Institute, Training School Complex, Anushakti Nagar, Mumbai, India ,grid.410871.b0000 0004 1769 5793Department of Medical Oncology, Tata Memorial Hospital, Tata Memorial Centre, Mumbai, India
| | - Vijay M. Patil
- grid.450257.10000 0004 1775 9822Homi Bhabha National Institute, Training School Complex, Anushakti Nagar, Mumbai, India ,grid.410871.b0000 0004 1769 5793Department of Medical Oncology, Tata Memorial Hospital, Tata Memorial Centre, Mumbai, India
| | - Kumar Prabhash
- grid.450257.10000 0004 1775 9822Homi Bhabha National Institute, Training School Complex, Anushakti Nagar, Mumbai, India ,grid.410871.b0000 0004 1769 5793Department of Medical Oncology, Tata Memorial Hospital, Tata Memorial Centre, Mumbai, India
| | - Manoj B. Mahimkar
- grid.410871.b0000 0004 1769 5793Mahimkar Lab, Cancer Research Institute, Advanced Centre for Treatment, Research and Education in Cancer, Tata Memorial Centre, Navi Mumbai, India ,grid.450257.10000 0004 1775 9822Homi Bhabha National Institute, Training School Complex, Anushakti Nagar, Mumbai, India
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Predictive scoring systems for molecular responses in persons with chronic phase chronic myeloid leukemia receiving initial imatinib therapy. Leukemia 2022; 36:2042-2049. [PMID: 35650426 DOI: 10.1038/s41375-022-01616-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Revised: 05/17/2022] [Accepted: 05/25/2022] [Indexed: 11/09/2022]
Abstract
It is vital for physicians and persons with chronic myeloid leukemia (CML) to accurately predict the likelihood of achieving a major molecular response (MMR) and a deep molecular response (DMR; at least MR4) at the start of imatinib-therapy, which could help in decision making of treatment goals and strategies. To answer this question, we interrogated data from 1369 consecutive subjects with chronic phase CML receiving initial imatinib-therapy to identify predictive co-variates. Subjects were randomly-assigned to training (n = 913) and validation (n = 456) datasets. Male sex, higher WBC concentration, lower haemoglobin concentration, higher percentage blood blasts and larger spleen size were significantly-associated with lower cumulative incidences of MMR and MR4 in training dataset. Using Fine-Gray model, we developed the predictive scoring systems for MMR and MR4 which classified subjects into the low-, intermediate- and high-risk cohorts with significantly-different cumulative incidences of MMR and MR4 with good predictive discrimination and accuracy in training and validation cohorts with high area under the receiver-operator characteristic curve (AUROC) values. These data may help physicians decide appropriateness of initial imatinib therapy.
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Kwan ACF, Blosser N, Ghosh S, Leyshon C, Dersch-Mills D, Puckrin RP, Duggan P, Zepeda V, Savoie L, Stewart D, Storek J, Jamani K. Toward optimization of cyclosporine concentration target to prevent acute graft-vs-host disease following myeloablative allogeneic stem cell transplant. Clin Transplant 2022; 36:e14732. [PMID: 35606904 DOI: 10.1111/ctr.14732] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Revised: 05/09/2022] [Accepted: 05/14/2022] [Indexed: 11/28/2022]
Abstract
Despite the common use of cyclosporine (CsA) for acute graft-versus-host disease (aGVHD) prophylaxis following allogeneic stem cell transplant, the optimal CsA trough target remains unknown. Here, we report on outcomes of adult patients following myeloablative conditioning to identify an optimal CsA trough target and characterize the most relevant timeframe post-transplant for CsA trough targeting to minimize aGVHD. We retrospectively reviewed 399 consecutive patients who underwent first peripheral blood allogeneic stem cell transplant for hematological malignancies between January 2009 and December 2018. In the unadjusted and adjusted analyses, the incidence of grades 2-4 aGVHD was significantly higher among patients with an average CsA trough concentration <250 mcg/L compared to patients with an average CsA trough concentration ≥250 mcg/L during days 15-28 post-transplant (31.5% versus 18.8%, P = 0.037), with an odds ratio (OR) of 1.97 (95% confidence interval 1.04-3.71). In contrast, no correlations between CsA trough concentration and relapse, non-relapse mortality and overall survival was found. In conclusion, early post-transplant CsA trough concentrations are an important factor in the prophylaxis against aGVHD. Our findings suggest that CsA trough concentrations should be maximized between days 15-28 post-myeloablative transplant. This article is protected by copyright. All rights reserved.
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Affiliation(s)
| | - Nikki Blosser
- Alberta Blood & Marrow Transplant Program, Calgary, Alberta, Canada
| | - Sunita Ghosh
- Cross Cancer Institute, Edmonton, Alberta, Canada
| | | | | | | | - Peter Duggan
- Alberta Blood & Marrow Transplant Program, Calgary, Alberta, Canada
| | - Victor Zepeda
- Alberta Blood & Marrow Transplant Program, Calgary, Alberta, Canada
| | - Lynn Savoie
- Alberta Blood & Marrow Transplant Program, Calgary, Alberta, Canada
| | - Douglas Stewart
- Alberta Blood & Marrow Transplant Program, Calgary, Alberta, Canada
| | - Jan Storek
- Alberta Blood & Marrow Transplant Program, Calgary, Alberta, Canada
| | - Kareem Jamani
- Alberta Blood & Marrow Transplant Program, Calgary, Alberta, Canada
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Kim CH, Kang Y, Kim JS, Sohn SH, Hwang HY. Association Between the Frailty Index and Clinical Outcomes after Coronary Artery Bypass Grafting. J Chest Surg 2022; 55:189-196. [PMID: 35440518 PMCID: PMC9178307 DOI: 10.5090/jcs.21.147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Revised: 02/09/2022] [Accepted: 03/13/2022] [Indexed: 11/21/2022] Open
Abstract
Background This study investigated the predictive value of the frailty index calculated using laboratory data and vital signs (FI-L) in patients who underwent coronary artery bypass grafting (CABG). Methods This study included 508 patients (age 67.3±9.7 years, male 78.0%) who underwent CABG between 2018 and 2021. The FI-L, which estimates patients’ frailty based on laboratory data and vital signs, was calculated as the ratio of variables outside the normal range for 32 preoperative parameters. The primary endpoints were operative and medium-term all-cause mortality. The secondary endpoints were early postoperative complications and major adverse cardiac and cerebrovascular events (MACCEs). Results The mean FI-L was 20.9%±10.9%. The early mortality rate was 1.6% (n=8). Postoperative complications were atrial fibrillation (n=148, 29.1%), respiratory complications (n=38, 7.5%), and acute kidney injury (n=15, 3.0%). The 1- and 3-year survival rates were 96.0% and 88.7%, and the 1- and 3-year cumulative incidence rates of MACCEs were 4.87% and 8.98%. In multivariable analyses, the FI-L showed statistically significant associations with medium-term all-cause mortality (hazard ratio [HR], 1.042; 95% confidence interval [CI], 1.010–1.076), MACCEs (subdistribution HR, 1.054; 95% CI, 1.030–1.078), atrial fibrillation (odds ratio [OR], 1.02; 95% CI, 1.002–1.039), acute kidney injury (OR, 1.06; 95% CI, 1.014–1.108), and re-operation for bleeding (OR, 1.09; 95% CI, 1.032–1.152). The minimal p-value approach showed that 32% was the best cutoff for the FI-L as a predictor of all-cause mortality post-CABG. Conclusion The FI-L was a significant prognostic factor related to all-cause mortality and postoperative complications in patients who underwent CABG.
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Affiliation(s)
- Chan Hyeong Kim
- Department of Thoracic and Cardiovascular Surgery, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea
| | - Yoonjin Kang
- Department of Thoracic and Cardiovascular Surgery, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea
| | - Ji Seong Kim
- Department of Thoracic and Cardiovascular Surgery, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea
| | - Suk Ho Sohn
- Department of Thoracic and Cardiovascular Surgery, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea
| | - Ho Young Hwang
- Department of Thoracic and Cardiovascular Surgery, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea
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Liu Z, Liu K, Gao J, Jing C, Ma Y, Zheng S, Shan J. Prognostic Value of Lymph Node Evaluation in Stage II Small Bowel Adenocarcinoma: An Updated Analysis of Surveillance, Epidemiology, and End Results Database. Front Oncol 2022; 12:865745. [PMID: 35402228 PMCID: PMC8989959 DOI: 10.3389/fonc.2022.865745] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2022] [Accepted: 03/03/2022] [Indexed: 11/25/2022] Open
Abstract
Background Due to the lack of large-scale clinical trials, the treatment strategies of small bowel adenocarcinoma (SBA) are controversial, especially for stage II patients. According to the National Comprehensive Cancer Network (NCCN) guideline, few lymph nodes (LNs) examined (<5 for duodenum or <8 for jejunal/ileal primary location) are one of the high-risk features for stage II patients, for whom adjuvant chemotherapy is recommended. This consensus is originally drawn from data in the Surveillance, Epidemiology, and End Results Database (SEER) between 1988 and 2010. However, the surgical modalities and chemotherapy strategies changed a lot after 2004 for SBA patients. The previous data may not represent a true picture of current therapeutics. Thus, we reanalyzed the SEER database and updated the cutoff point of LN numbers resected with respect to cancer-specific survival (CSS) using the latest SEER information. Methods Patients diagnosed with stage II SBA and who underwent curative surgery between 2004 and 2018 were extracted from the SEER database. CSS was calculated using the Kaplan–Meier method and compared by log-rank test. Maximum survival differences based on total LNs examined for duodenal and jejunoileal tumors were determined separately with the cut-point analysis and maximum log-rank χ2 statistic. A nomogram model was constructed based on the multivariate Cox analysis to predict 5‐ and 10‐year CSS and was then validated with an internal cohort. Results A total of 935 stage II SBA patients met the inclusion criteria. The greatest difference in survival was found in patients who had removal of at least 5 LNs for duodenal and 12 LNs for jejunoileal tumors. Multivariate Cox analysis showed that age, T stage, histology grade, primary site, and LN numbers were independent prognostic factors for survival. The C index of nomogram model was 0.701 (95% CI, 0.661–0.741, p < 0.001). Conclusions The number of LNs harvested is an important prognostic factor for survival in stage II SBA patients. LN number examined <5 remains a high-risk factor for duodenum, but the cutoff point for jejunal/ileal tumors should rise from 8 to 12. Appropriate radical lymphadenectomy should be performed in stage II SBA surgery.
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Affiliation(s)
- Zhen Liu
- Department of Oncology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.,Cancer Institute (Key Laboratory for Cancer Intervention and Prevention, China National Ministry of Education, Zhejiang Provincial Key Laboratory of Molecular Biology in Medical Sciences), The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Kun Liu
- Department of General Surgery, Beijing Friendship Hospital, Capital Medical University, Beijing, China.,Clinical Center for Colorectal Cancer, Capital Medical University, Beijing, China.,Beijing Key Laboratory of Cancer Invasion and Metastasis Research, Beijing, China.,National Clinical Research Center for Digestive Diseases, Beijing, China
| | - Jiale Gao
- Department of General Surgery, Beijing Friendship Hospital, Capital Medical University, Beijing, China.,Clinical Center for Colorectal Cancer, Capital Medical University, Beijing, China.,Beijing Key Laboratory of Cancer Invasion and Metastasis Research, Beijing, China.,National Clinical Research Center for Digestive Diseases, Beijing, China
| | - Chao Jing
- Department of General Surgery, Beijing Friendship Hospital, Capital Medical University, Beijing, China.,Clinical Center for Colorectal Cancer, Capital Medical University, Beijing, China.,Beijing Key Laboratory of Cancer Invasion and Metastasis Research, Beijing, China.,National Clinical Research Center for Digestive Diseases, Beijing, China
| | - Yanhong Ma
- Department of Oncology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Shu Zheng
- Cancer Institute (Key Laboratory for Cancer Intervention and Prevention, China National Ministry of Education, Zhejiang Provincial Key Laboratory of Molecular Biology in Medical Sciences), The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Jianzhen Shan
- Department of Oncology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
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Cheng X, Liu Y, Wang J, Chen Y, Robertson AG, Zhang X, Jones SJM, Taubert S. cSurvival: a web resource for biomarker interactions in cancer outcomes and in cell lines. Brief Bioinform 2022; 23:6562683. [PMID: 35368077 PMCID: PMC9116376 DOI: 10.1093/bib/bbac090] [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: 10/05/2021] [Revised: 02/02/2022] [Accepted: 02/24/2022] [Indexed: 11/14/2022] Open
Abstract
Abstract
Survival analysis is a technique for identifying prognostic biomarkers and genetic vulnerabilities in cancer studies. Large-scale consortium-based projects have profiled >11 000 adult and >4000 pediatric tumor cases with clinical outcomes and multiomics approaches. This provides a resource for investigating molecular-level cancer etiologies using clinical correlations. Although cancers often arise from multiple genetic vulnerabilities and have deregulated gene sets (GSs), existing survival analysis protocols can report only on individual genes. Additionally, there is no systematic method to connect clinical outcomes with experimental (cell line) data. To address these gaps, we developed cSurvival (https://tau.cmmt.ubc.ca/cSurvival). cSurvival provides a user-adjustable analytical pipeline with a curated, integrated database and offers three main advances: (i) joint analysis with two genomic predictors to identify interacting biomarkers, including new algorithms to identify optimal cutoffs for two continuous predictors; (ii) survival analysis not only at the gene, but also the GS level; and (iii) integration of clinical and experimental cell line studies to generate synergistic biological insights. To demonstrate these advances, we report three case studies. We confirmed findings of autophagy-dependent survival in colorectal cancers and of synergistic negative effects between high expression of SLC7A11 and SLC2A1 on outcomes in several cancers. We further used cSurvival to identify high expression of the Nrf2-antioxidant response element pathway as a main indicator for lung cancer prognosis and for cellular resistance to oxidative stress-inducing drugs. Altogether, these analyses demonstrate cSurvival’s ability to support biomarker prognosis and interaction analysis via gene- and GS-level approaches and to integrate clinical and experimental biomedical studies.
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Affiliation(s)
- Xuanjin Cheng
- Centre for Molecular Medicine and Therapeutics, The University of British Columbia, Vancouver, British Columbia, Canada
- British Columbia Children’s Hospital Research Institute, Vancouver, British Columbia, Canada
- Department of Medical Genetics, The University of British Columbia, Vancouver, British Columbia, Canada
| | - Yongxing Liu
- Centre for Molecular Medicine and Therapeutics, The University of British Columbia, Vancouver, British Columbia, Canada
- British Columbia Children’s Hospital Research Institute, Vancouver, British Columbia, Canada
- Department of Medical Genetics, The University of British Columbia, Vancouver, British Columbia, Canada
| | - Jiahe Wang
- Centre for Molecular Medicine and Therapeutics, The University of British Columbia, Vancouver, British Columbia, Canada
- British Columbia Children’s Hospital Research Institute, Vancouver, British Columbia, Canada
- Department of Medical Genetics, The University of British Columbia, Vancouver, British Columbia, Canada
| | - Yujie Chen
- Centre for Molecular Medicine and Therapeutics, The University of British Columbia, Vancouver, British Columbia, Canada
- British Columbia Children’s Hospital Research Institute, Vancouver, British Columbia, Canada
- Department of Medical Genetics, The University of British Columbia, Vancouver, British Columbia, Canada
| | - Andrew Gordon Robertson
- Canada’s Michael Smith Genome Sciences Centre at BC Cancer Agency, Vancouver, British Columbia, Canada
| | - Xuekui Zhang
- Department of Mathematics and Statistics, University of Victoria, Victoria, British Columbia, Canada
| | - Steven J M Jones
- Department of Medical Genetics, The University of British Columbia, Vancouver, British Columbia, Canada
- Canada’s Michael Smith Genome Sciences Centre at BC Cancer Agency, Vancouver, British Columbia, Canada
| | - Stefan Taubert
- Centre for Molecular Medicine and Therapeutics, The University of British Columbia, Vancouver, British Columbia, Canada
- British Columbia Children’s Hospital Research Institute, Vancouver, British Columbia, Canada
- Department of Medical Genetics, The University of British Columbia, Vancouver, British Columbia, Canada
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Gupta R, Day CN, Tobin WO, Crowson CS. Understanding the effect of categorization of a continuous predictor with application to neuro-oncology. Neurooncol Pract 2022; 9:87-90. [PMID: 35371519 PMCID: PMC8965047 DOI: 10.1093/nop/npab049] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2023] Open
Abstract
Many neuro-oncology studies commonly assess the association between a prognostic factor (predictor) and disease or outcome, such as the association between age and glioma. Predictors can be continuous (eg, age) or categorical (eg, race/ethnicity). Effects of categorical predictors are frequently easier to visualize and interpret than effects of continuous variables. This makes it an attractive, and seemingly justifiable, option to subdivide the continuous predictors into categories (eg, age <50 years vs age ≥50 years). However, this approach results in loss of information (and power) compared to the continuous version. This review outlines the use cases for continuous and categorized predictors and provides tips and pitfalls for interpretation of these approaches.
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Affiliation(s)
- Ruchi Gupta
- Department of Quantitative Health Sciences, Mayo Clinic, Rochester, Minnesota, USA
| | - Courtney N Day
- Department of Quantitative Health Sciences, Mayo Clinic, Rochester, Minnesota, USA
| | - Wlliam O Tobin
- Department of Neurology, Mayo Clinic, Rochester, Minnesota, USA
| | - Cynthia S Crowson
- Department of Quantitative Health Sciences, Mayo Clinic, Rochester, Minnesota, USA
- Division of Rheumatology, Mayo Clinic, Rochester, Minnesota, USA
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Tumor immune cell clustering and its association with survival in African American women with ovarian cancer. PLoS Comput Biol 2022; 18:e1009900. [PMID: 35235563 PMCID: PMC8920290 DOI: 10.1371/journal.pcbi.1009900] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Revised: 03/14/2022] [Accepted: 02/07/2022] [Indexed: 11/30/2022] Open
Abstract
New technologies, such as multiplex immunofluorescence microscopy (mIF), are being developed and used for the assessment and visualization of the tumor immune microenvironment (TIME). These assays produce not only an estimate of the abundance of immune cells in the TIME, but also their spatial locations. However, there are currently few approaches to analyze the spatial context of the TIME. Therefore, we have developed a framework for the spatial analysis of the TIME using Ripley’s K, coupled with a permutation-based framework to estimate and measure the departure from complete spatial randomness (CSR) as a measure of the interactions between immune cells. This approach was then applied to epithelial ovarian cancer (EOC) using mIF collected on intra-tumoral regions of interest (ROIs) and tissue microarrays (TMAs) from 160 high-grade serous ovarian carcinoma patients in the African American Cancer Epidemiology Study (AACES) (94 subjects on TMAs resulting in 263 tissue cores; 93 subjects with 260 ROIs; 27 subjects with both TMA and ROI data). Cox proportional hazard models were constructed to determine the association of abundance and spatial clustering of tumor-infiltrating lymphocytes (CD3+), cytotoxic T-cells (CD8+CD3+), and regulatory T-cells (CD3+FoxP3+) with overall survival. Analysis was done on TMA and ROIs, treating the TMA data as validation of the findings from the ROIs. We found that EOC patients with high abundance and low spatial clustering of tumor-infiltrating lymphocytes and T-cell subsets in their tumors had the best overall survival. Additionally, patients with EOC tumors displaying high co-occurrence of cytotoxic T-cells and regulatory T-cells had the best overall survival. Grouping women with ovarian cancer based on both cell abundance and spatial contexture showed better discrimination for survival than grouping ovarian cancer cases only by cell abundance. These findings underscore the prognostic importance of evaluating not only immune cell abundance but also the spatial contexture of the immune cells in the TIME. In conclusion, the application of this spatial analysis framework to the study of the TIME could lead to the identification of immune content and spatial architecture that could aid in the determination of patients that are likely to respond to immunotherapies. New technologies, such as multiplex immunofluorescence microscopy, are being developed and used for the assessment and visualization of the tumor immune microenvironment (TIME). These assays produce not only an estimate of the abundance of immune cells in the TIME, but also their spatial locations; however, there are currently few approaches to analyze the spatial context of the TIME. Thus, we have developed a framework for the spatial analysis of the TIME and applied this method to the analysis of T-cells collected from patients with high-grade serous ovarian carcinoma in the African American Cancer Epidemiology Study. We found that patients with high abundance and low spatial clustering of tumor-infiltrating lymphocytes and T-cell subsets in their tumors had the best overall survival. Additionally, best survival was observed for patients with tumors displaying high co-occurrence of cytotoxic T-cells and regulatory T-cells. These findings underscore the prognostic importance of evaluating not only immune cell abundance but also the spatial contexture of the immune cells in the ovarian TIME. The use of our framework for spatial analysis of the TIME and immune cell clustering may be applicable in other cancers and provide a novel approach to identification of biomarkers for predicting patient outcomes.
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Ramos-García P, González-Moles MÁ, Warnakulasuriya S. Significance of p53 overexpression in the prediction of the malignant transformation risk of oral potentially malignant disorders: A systematic review and meta-analysis. Oral Oncol 2022; 126:105734. [DOI: 10.1016/j.oraloncology.2022.105734] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Revised: 01/10/2022] [Accepted: 01/19/2022] [Indexed: 12/24/2022]
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Xia C, Huang W, Chen YL, Fu HB, Tang M, Zhang TL, Li J, Lv GH, Yan YG, Ouyang ZH, Yao N, Wang C, Zou MX. Coexpression of HHLA2 and PD-L1 on Tumor Cells Independently Predicts the Survival of Spinal Chordoma Patients. Front Immunol 2022; 12:797407. [PMID: 35145510 PMCID: PMC8824251 DOI: 10.3389/fimmu.2021.797407] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Accepted: 12/31/2021] [Indexed: 12/19/2022] Open
Abstract
Background Immunotherapy only achieves efficacy in some cancer patients, and less is known about other immune checkpoint molecules in chordoma. Here, we aimed to determine the expression of PD-L1, HHLA2, B7H3, IDO-1 and Galectin-9 in spinal chordoma and evaluated their association with tumor infiltrating lymphocytes (TILs), clinicopathological characteristics and survival of patients. Methods Using multiplexed quantitative immunofluorescence (QIF), we simultaneously measured the levels of five different immune checkpoint molecules and major TIL subsets in 92 human spinal chordoma samples. Results Tumor HHLA2 and PD-L1 were positive in 80.0% and 86.0% of cases, respectively. However, B7H3, IDO-1 and Galectin-9 positivity on tumor cells were only seen in 21.0% of cases, despite all showing predominantly stromal expression. Coexpression of these QIF markers in the tumor compartment was scarcely detected except for PD-L1 and HHLA2, which was observed in 69.6% of cases. While tumoral HHLA2 and stromal B7H3 expressions were associated with an aggressive tumor phenotype, suppressive immune response (specifically including elevated PD-1+ TILs level and decreased CD8+ TIL density) and poor prognosis, stromal levels of PD-L1 and Galectin-9 predicted the opposite outcomes. Importantly, HHLA2 and PD-L1 coexpression on tumor cells independently predicted both worse local recurrence-free survival and overall survival. Conclusion These data provide a better understanding of the immunosuppressive mechanism in chordoma and may be useful for the development of combination or novel immunotherapy approaches aiming to improve therapeutic efficacy and survival.
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Affiliation(s)
- Chao Xia
- The First Affiliated Hospital, Health Management Center, Hengyang Medical School, University of South China, Hengyang, China.,Department of Spine Surgery, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, China
| | - Wei Huang
- The First Affiliated Hospital, Health Management Center, Hengyang Medical School, University of South China, Hengyang, China
| | - Yun-Liang Chen
- Shenzhen Audaque Data Technology Co., Ltd., Shenzhen, China
| | - Hai-Bin Fu
- Department of Spine Surgery, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, China
| | - Ming Tang
- Department of Spine Surgery, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, China
| | - Tao-Lan Zhang
- Department of Spine Surgery, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, China
| | - Jing Li
- Department of Spine Surgery, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Guo-Hua Lv
- Department of Spine Surgery, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Yi-Guo Yan
- Department of Spine Surgery, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, China
| | - Zhi-Hua Ouyang
- Department of Spine Surgery, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, China
| | - Nvzhao Yao
- Department of Spine Surgery, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, China
| | - Cheng Wang
- Department of Spine Surgery, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, China
| | - Ming-Xiang Zou
- Department of Spine Surgery, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, China
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Zhang Y, Molinaro AM. Categorizing continuous biomarkers: More cons than pros. Neurooncol Pract 2022; 9:81-82. [PMID: 35371527 PMCID: PMC8965051 DOI: 10.1093/nop/npac012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Yalan Zhang
- Department of Neurological Surgery, University of California, San Francisco, San Francisco, California, USA
| | - Annette M Molinaro
- Corresponding Author: Annette M. Molinaro, PhD, Department of Neurological Surgery, University of California, San Francisco, 1450 3rd Street, San Francisco, CA 94158, USA ()
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50
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The value of metabolic parameters and textural analysis in predicting prognosis in locally advanced cervical cancer treated with chemoradiotherapy. Strahlenther Onkol 2022; 198:792-801. [PMID: 35072751 PMCID: PMC9402502 DOI: 10.1007/s00066-022-01900-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Accepted: 01/03/2022] [Indexed: 11/30/2022]
Abstract
Objective The aim of the study was to assess the impact of clinical and metabolic parameters derived from 18F-FDG PET/CT (positron emission tomography–computed tomography) in patients with locally advanced cervical cancer (LACC) on prognosis. Methods Patients with LACC of stage IB2-IVA treated by primary radiochemotherapy followed by brachytherapy were enrolled in this retrospective study. Indexes derived from standardized uptake value (SUV), metabolic tumor volume (MTV), total lesion glycolysis (TLG), and textural features of the primary tumor were measured for each patient. Overall survival (OS) and recurrence-free survival (RFS) rates were calculated according to Kaplan–Meier and survival curves were compared using the log-rank test. Uni- and multivariate analyses were performed using the Cox regression model. Results A total of 116 patients were included. Median follow-up was 58 months (range: 1–129). A total of 36 (31%) patients died. Five-year OS and RFS rates were 69 and 60%, respectively. Univariate analyses indicated that FIGO stage, the presence of hydronephrosis, high CYFRA 21.1 levels, and textural features had a significant impact on OS and RFS. MTV as well as SCC-Ag concentration were also significantly associated with OS. On multivariate analysis, the presence of hydronephrosis, CYFRA 21.1, and sphericity were independent prognostics factors for OS and RFS. Also, SCC-Ag level, MTV, and GLZLM (gray-level zone length matrix) ZLNU (zone length non-uniformity) were significantly associated with OS. Conclusion Classical prognostic factors and tumor heterogeneity on pretreatment PET/CT were significantly associated with prognosis in patients with LACC.
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