Neutrophil-to-lymphocyte ratio has been correlated with clinical outcomes in many cancers. We investigated whether the delta-NLR (ΔNLR) following radiation therapy (RT) could predict achieving surgical resection and the overall survival (OS) of patients with borderline resectable (BRPC) and locally advanced pancreatic cancer (LAPC), and whether the splenic radiation dose impacted ΔNLR.
101 patients with biopsy-proven BRPC or LAPC who received induction chemotherapy followed by RT were retrospectively enrolled. Following contouring of spleens, dose-volume histograms (DVHs) for splenic dosimetric parameters were calculated. Pre- and post-RT complete blood counts (CBC) within two weeks were recorded. Delta (Δ) values were calculated by subtracting the post-RT value from the pre-RT value. Cox regression survival analysis for pre and postradiation CBC values and OS was performed. Receiver operating curves (ROC) were generated and optimal cutoff points for highest sensitivity and specificity were identified. Ka chemotherapy, elevated ΔNLR after RT significantly predicts worse OS and decreased odds of achieving resection. Furthermore, ΔNLR is correlated with higher splenic doses, suggesting the spleen may be an important organ at risk.
Our previous studies have demonstrated that Krüppel-like factor 10 (Klf10) modulated tumor radiation resistance and helps to predict clinical outcomes of pancreatic adenocarcinoma (PDAC). This study aimed to evaluate whether the expression levels of Klf10, Smad4 and Runx3 can help predict the benefits of adjuvant chemoradiotherapy (CRT) in resected PDAC.
Tissue specimens were collected from 111 patients with curatively resected PDAC who were enrolled into a randomized trial comparing adjuvant gemcitabine with or without CRT. Immunohistochemical expression of biomarkers was quantified by pathologists blinded to patient outcomes through a grading system based on the extent and intensity of staining. The predictive value of biomarkers was analyzed using SAS statistical software.
In total, 56 and 55 patients received adjuvant gemcitabine alone and additional CRT, respectively. The expression levels of Klf10, Smad4 and postoperative CA19-9 were significantly correlated with overall survival (OS) (p=0.013, 0.r validation.
This study was conducted to evaluate the longitudinal impact of postmastectomy radiation therapy (PMRT) on persistent severe lymphedema (PSL) using arm volume measurements by an infrared optoelectronic volumetry.
Of the patients who underwent mastectomy between 2008 and 2016, we included 330 patients with secondary arm lymphedema. Percentage of excessive volume (PEV) of the arm were serially assessed using an optoelectronic volumetry 1, 3, 6, 12, 18, 24, 36, and 48months after the lymphedema diagnosis (T
). We defined PSL as 2 or more episodes of PEV≥20%. Risk factors for PSL were evaluated using stepwise regression analyses.
Patients who received PMRT (n=202, 61.2%) were more likely to have larger extent of axillary node dissection (AND), and frequent stage II/III lymphedema at T
than those who did not receive PMRT (p<0.001). With a median follow-up of 72.5months, PSL occurred in 71 (21.5%) patients. Patients with PSL were more frequently treated with AND of≥20 nodes without reconstruction, had advanced lymphedema stage and higher PEV at T
, and more frequent events of cellulitis compared to those without PSL. https://www.selleckchem.com/products/elenestinib-phosphate.html The risk of developing PSL was significantly associated with PMRT with regional node irradiation (RNI), AND of ≥20 nodes, lymphedema stage, and PEV at T
, cellulitis, and compliance with physical therapy.
PMRT, especially RNI, was associated with a consistent increase in PEV in patients with arm lymphedema. Therefore, timely physical therapy is necessary for this patient population.
PMRT, especially RNI, was associated with a consistent increase in PEV in patients with arm lymphedema. Therefore, timely physical therapy is necessary for this patient population.
Local treatment of metastases in combination with systemic therapy can prolong survival of oligo-metastasized patients. To fully exploit this potential, safe and effective treatments are needed to ensure long-term metastases control. Stereotactic body radiotherapy (SBRT) is one means, however, for moving liver tumors correct delivery of high doses is challenging. After validating equal in-vivo treatment accuracy, we analyzed a pooled multi-platform liver-SBRT-database for clinical outcome.
Local control (LC), progression-free interval (PFI), overall survival (OS), predictive factors and toxicity was evaluated in 135 patients with 227 metastases treated by gantry-based SBRT (deep-inspiratory breath-hold-gating; n=71) and robotic-based SBRT (fiducial-tracking, n=156) with mean gross tumor volume biological effective dose (GTV-BED
) of 146.6Gy
.
One-, and five-year LC was 90% and 68.7%, respectively. On multivariate analysis, LC was significantly predicted by colorectal histology (p=0.006). Median OS wasoverall survival.
Patient selection for intensity modulated proton therapy (IMPT), using comparative photon therapy planning, is workload-intensive and time-consuming. Pre-selection aims at avoidance of manual IMPT planning for patients that are in the end ineligible. We investigated the use of machine learning together with automated IMPT treatment planning for pre-selection of head and neck cancer patients, and validated the methodology for the Dutch model based selection (MBS) approach.
For forty-five head and neck patients with a previous MBS, an IMPT plan was generated with non-clinical, fully-automated planning. Dosimetric differences of these plans with the corresponding previously generated photon plans, and the outcomes of the former MBS, were used to train a Gaussian naïve Bayes classifier for MBS outcome prediction. During training, strong emphasis was placed on avoiding misclassification of IMPT eligible patients (i.e. false negatives).
Pre-selection with the classifier resulted in 0 false negatives, 12 (27%)ting the physician during patient pre-selection.
Despite definitive chemoradiotherapy (CRT) being a recommended therapeutic method for patients with T4b esophageal squamous cell carcinoma (ESCC), treatment response and complications remain unclear. Esophageal fistula is a severe CRT-related complication when treating locally advanced ESCC, but data on risk factors that lead to esophageal fistula formation are limited. The aim of this analysis is to characterize the outcomes of T4b ESCC treated by CRT and investigate the risk factors of esophageal fistula.
We retrospectively analyzed 136 patients with clinically unresectable T4b ESCC who were treated with CRT. Response, survival, and complication rates, particularly the rate of esophageal fistula and its associated risk factors were analyzed.
The median progression-free survival and overall survival (OS) of all patients were 7.9 (95% confidence interval [CI] 6.1-9.7) and 12.2months (95% [CI] 8.9-15.4), respectively. The Kaplan-Meier curves showed that the 3- and 5-year OS rates were 29.9% and 20.2%, respectively.
Neutrophil-to-lymphocyte ratio has been correlated with clinical outcomes in many cancers. We investigated whether the delta-NLR (ΔNLR) following radiation therapy (RT) could predict achieving surgical resection and the overall survival (OS) of patients with borderline resectable (BRPC) and locally advanced pancreatic cancer (LAPC), and whether the splenic radiation dose impacted ΔNLR.
101 patients with biopsy-proven BRPC or LAPC who received induction chemotherapy followed by RT were retrospectively enrolled. Following contouring of spleens, dose-volume histograms (DVHs) for splenic dosimetric parameters were calculated. Pre- and post-RT complete blood counts (CBC) within two weeks were recorded. Delta (Δ) values were calculated by subtracting the post-RT value from the pre-RT value. Cox regression survival analysis for pre and postradiation CBC values and OS was performed. Receiver operating curves (ROC) were generated and optimal cutoff points for highest sensitivity and specificity were identified. Ka chemotherapy, elevated ΔNLR after RT significantly predicts worse OS and decreased odds of achieving resection. Furthermore, ΔNLR is correlated with higher splenic doses, suggesting the spleen may be an important organ at risk.
Our previous studies have demonstrated that Krüppel-like factor 10 (Klf10) modulated tumor radiation resistance and helps to predict clinical outcomes of pancreatic adenocarcinoma (PDAC). This study aimed to evaluate whether the expression levels of Klf10, Smad4 and Runx3 can help predict the benefits of adjuvant chemoradiotherapy (CRT) in resected PDAC.
Tissue specimens were collected from 111 patients with curatively resected PDAC who were enrolled into a randomized trial comparing adjuvant gemcitabine with or without CRT. Immunohistochemical expression of biomarkers was quantified by pathologists blinded to patient outcomes through a grading system based on the extent and intensity of staining. The predictive value of biomarkers was analyzed using SAS statistical software.
In total, 56 and 55 patients received adjuvant gemcitabine alone and additional CRT, respectively. The expression levels of Klf10, Smad4 and postoperative CA19-9 were significantly correlated with overall survival (OS) (p=0.013, 0.r validation.
This study was conducted to evaluate the longitudinal impact of postmastectomy radiation therapy (PMRT) on persistent severe lymphedema (PSL) using arm volume measurements by an infrared optoelectronic volumetry.
Of the patients who underwent mastectomy between 2008 and 2016, we included 330 patients with secondary arm lymphedema. Percentage of excessive volume (PEV) of the arm were serially assessed using an optoelectronic volumetry 1, 3, 6, 12, 18, 24, 36, and 48months after the lymphedema diagnosis (T
). We defined PSL as 2 or more episodes of PEV≥20%. Risk factors for PSL were evaluated using stepwise regression analyses.
Patients who received PMRT (n=202, 61.2%) were more likely to have larger extent of axillary node dissection (AND), and frequent stage II/III lymphedema at T
than those who did not receive PMRT (p<0.001). With a median follow-up of 72.5months, PSL occurred in 71 (21.5%) patients. Patients with PSL were more frequently treated with AND of≥20 nodes without reconstruction, had advanced lymphedema stage and higher PEV at T
, and more frequent events of cellulitis compared to those without PSL. https://www.selleckchem.com/products/elenestinib-phosphate.html The risk of developing PSL was significantly associated with PMRT with regional node irradiation (RNI), AND of ≥20 nodes, lymphedema stage, and PEV at T
, cellulitis, and compliance with physical therapy.
PMRT, especially RNI, was associated with a consistent increase in PEV in patients with arm lymphedema. Therefore, timely physical therapy is necessary for this patient population.
PMRT, especially RNI, was associated with a consistent increase in PEV in patients with arm lymphedema. Therefore, timely physical therapy is necessary for this patient population.
Local treatment of metastases in combination with systemic therapy can prolong survival of oligo-metastasized patients. To fully exploit this potential, safe and effective treatments are needed to ensure long-term metastases control. Stereotactic body radiotherapy (SBRT) is one means, however, for moving liver tumors correct delivery of high doses is challenging. After validating equal in-vivo treatment accuracy, we analyzed a pooled multi-platform liver-SBRT-database for clinical outcome.
Local control (LC), progression-free interval (PFI), overall survival (OS), predictive factors and toxicity was evaluated in 135 patients with 227 metastases treated by gantry-based SBRT (deep-inspiratory breath-hold-gating; n=71) and robotic-based SBRT (fiducial-tracking, n=156) with mean gross tumor volume biological effective dose (GTV-BED
) of 146.6Gy
.
One-, and five-year LC was 90% and 68.7%, respectively. On multivariate analysis, LC was significantly predicted by colorectal histology (p=0.006). Median OS wasoverall survival.
Patient selection for intensity modulated proton therapy (IMPT), using comparative photon therapy planning, is workload-intensive and time-consuming. Pre-selection aims at avoidance of manual IMPT planning for patients that are in the end ineligible. We investigated the use of machine learning together with automated IMPT treatment planning for pre-selection of head and neck cancer patients, and validated the methodology for the Dutch model based selection (MBS) approach.
For forty-five head and neck patients with a previous MBS, an IMPT plan was generated with non-clinical, fully-automated planning. Dosimetric differences of these plans with the corresponding previously generated photon plans, and the outcomes of the former MBS, were used to train a Gaussian naïve Bayes classifier for MBS outcome prediction. During training, strong emphasis was placed on avoiding misclassification of IMPT eligible patients (i.e. false negatives).
Pre-selection with the classifier resulted in 0 false negatives, 12 (27%)ting the physician during patient pre-selection.
Despite definitive chemoradiotherapy (CRT) being a recommended therapeutic method for patients with T4b esophageal squamous cell carcinoma (ESCC), treatment response and complications remain unclear. Esophageal fistula is a severe CRT-related complication when treating locally advanced ESCC, but data on risk factors that lead to esophageal fistula formation are limited. The aim of this analysis is to characterize the outcomes of T4b ESCC treated by CRT and investigate the risk factors of esophageal fistula.
We retrospectively analyzed 136 patients with clinically unresectable T4b ESCC who were treated with CRT. Response, survival, and complication rates, particularly the rate of esophageal fistula and its associated risk factors were analyzed.
The median progression-free survival and overall survival (OS) of all patients were 7.9 (95% confidence interval [CI] 6.1-9.7) and 12.2months (95% [CI] 8.9-15.4), respectively. The Kaplan-Meier curves showed that the 3- and 5-year OS rates were 29.9% and 20.2%, respectively.
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