Pub Date : 2025-05-05DOI: 10.1016/j.soi.2025.100146
Amelia WH Wong , Shirley Cheng , Anthony Herrera , Linda Wong
Background
Yttrium90 transarterial radioembolization (TARE) is increasingly used for bridging or downstaging to liver transplant(LT) or resection(LR) despite a paucity of data. This study aims to illustrate its efficacy as a bridge to surgery.
Methods
HCC patients who received Y90 TARE as their first treatment in Honolulu, HI during 2012–2022 were identified. Wilcoxon, Kruskal-Wallis, and Fischer’s t-tests identified statistical significance.
Results
Of 137 patients identified, 29 had advanced disease (stage III/IV) and 68 were LR candidates with inadequate FLR. Y90 TARE downstaged 14 %(n = 5/37) potential LR and one advanced disease to surgery. Of 40 LT candidates, 22 % underwent transplantation: 26 %(n = 7/27) within Milan and 15 %(n = 2/13) within UCSF criteria underwent transplantation. Only 9(22 %) were ineligible due to tumor progression; larger tumor size was the only predictor (>7.5 cm, p < 0.001).
Conclusions
Y90 TARE is an effective bridging therapy but most did not get transplanted for non-tumor reasons (comorbidities, substance abuse). Larger tumor burden and cirrhosis may impact its ability to downstage to resection.
Synopsis
This retrospective cohort study of 137 hepatocellular carcinoma patients demonstrates that Y90 TARE is able to successfully bridge 15–26 % of patients to transplantation and 14 % of previously unresectable patients to surgery however larger tumor size and cirrhosis appears to limit its efficacy. Y90 TARE has the potential to be an effective salvage therapy in medically fit individuals however a minority actually proceed to surgery, therefore further studies evaluating multi-modality therapies may improve the prospect of surgical intervention.
{"title":"Efficacy of Yttrium90 transarterial radioembolization as a bridge to surgery in hepatocellular carcinoma","authors":"Amelia WH Wong , Shirley Cheng , Anthony Herrera , Linda Wong","doi":"10.1016/j.soi.2025.100146","DOIUrl":"10.1016/j.soi.2025.100146","url":null,"abstract":"<div><h3>Background</h3><div>Yttrium90 transarterial radioembolization (TARE) is increasingly used for bridging or downstaging to liver transplant(LT) or resection(LR) despite a paucity of data. This study aims to illustrate its efficacy as a bridge to surgery.</div></div><div><h3>Methods</h3><div>HCC patients who received Y90 TARE as their first treatment in Honolulu, HI during 2012–2022 were identified. Wilcoxon, Kruskal-Wallis, and Fischer’s t-tests identified statistical significance.</div></div><div><h3>Results</h3><div>Of 137 patients identified, 29 had advanced disease (stage III/IV) and 68 were LR candidates with inadequate FLR. Y90 TARE downstaged 14 %(n = 5/37) potential LR and one advanced disease to surgery. Of 40 LT candidates, 22 % underwent transplantation: 26 %(n = 7/27) within Milan and 15 %(n = 2/13) within UCSF criteria underwent transplantation. Only 9(22 %) were ineligible due to tumor progression; larger tumor size was the only predictor (>7.5 cm, p < 0.001).</div></div><div><h3>Conclusions</h3><div>Y90 TARE is an effective bridging therapy but most did not get transplanted for non-tumor reasons (comorbidities, substance abuse). Larger tumor burden and cirrhosis may impact its ability to downstage to resection.</div></div><div><h3>Synopsis</h3><div>This retrospective cohort study of 137 hepatocellular carcinoma patients demonstrates that Y90 TARE is able to successfully bridge 15–26 % of patients to transplantation and 14 % of previously unresectable patients to surgery however larger tumor size and cirrhosis appears to limit its efficacy. Y90 TARE has the potential to be an effective salvage therapy in medically fit individuals however a minority actually proceed to surgery, therefore further studies evaluating multi-modality therapies may improve the prospect of surgical intervention.</div></div>","PeriodicalId":101191,"journal":{"name":"Surgical Oncology Insight","volume":"2 2","pages":"Article 100146"},"PeriodicalIF":0.0,"publicationDate":"2025-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143924574","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-04-29DOI: 10.1016/j.soi.2025.100143
Niranjna Swaminathan, Julia Adriana Kasmirski, Andrea Gillis, Brenessa Lindeman, Sophie Dream, Herbert Chen
Primary and secondary disorders of parathyroid hormone (PTH) secretion including primary hyperparathyroidism (PHPT) and hypoparathyroidism can result from both sporadic and hereditary causes. Advances in molecular genetics have expanded our understanding of the genetic syndromes underlying these disorders. This review aims to summarize the genetic landscape of hereditary parathyroid disorders, highlighting their molecular mechanisms, clinical presentations, diagnostic challenges, and management implications. We synthesized evidence from published literature and genetic testing guidelines issued by major endocrine societies. Specific focus was given to syndromes such as Multiple Endocrine Neoplasia, Hyperparathyroidism-Jaw Tumor (HPT-JT), Familial Isolated Hyperparathyroidism (FIHP), and Autosomal Dominant Hypocalcemia (ADH), among others. While 95 % of PHPT cases are sporadic, a small but clinically significant proportion is linked to germline mutations in genes such as MEN1, RET, CDC73, and CASR. Hypoparathyroid syndromes, though less common, are genetically diverse, involving genes related to parathyroid development, hormone secretion, and calcium-sensing. Current guidelines recommend genetic testing based on early age of onset, multiglandular disease, family history, and associated tumors. As genetic testing becomes more accessible, a precision medicine approach incorporating molecular diagnostics and counseling will play a central role in optimizing patient outcomes.
{"title":"From genes to glands: The genetic framework of parathyroid syndromes","authors":"Niranjna Swaminathan, Julia Adriana Kasmirski, Andrea Gillis, Brenessa Lindeman, Sophie Dream, Herbert Chen","doi":"10.1016/j.soi.2025.100143","DOIUrl":"10.1016/j.soi.2025.100143","url":null,"abstract":"<div><div>Primary and secondary disorders of parathyroid hormone (PTH) secretion including primary hyperparathyroidism (PHPT) and hypoparathyroidism can result from both sporadic and hereditary causes. Advances in molecular genetics have expanded our understanding of the genetic syndromes underlying these disorders. This review aims to summarize the genetic landscape of hereditary parathyroid disorders, highlighting their molecular mechanisms, clinical presentations, diagnostic challenges, and management implications. We synthesized evidence from published literature and genetic testing guidelines issued by major endocrine societies. Specific focus was given to syndromes such as Multiple Endocrine Neoplasia, Hyperparathyroidism-Jaw Tumor (HPT-JT), Familial Isolated Hyperparathyroidism (FIHP), and Autosomal Dominant Hypocalcemia (ADH), among others. While 95 % of PHPT cases are sporadic, a small but clinically significant proportion is linked to germline mutations in genes such as MEN1, RET, CDC73, and CASR. Hypoparathyroid syndromes, though less common, are genetically diverse, involving genes related to parathyroid development, hormone secretion, and calcium-sensing. Current guidelines recommend genetic testing based on early age of onset, multiglandular disease, family history, and associated tumors. As genetic testing becomes more accessible, a precision medicine approach incorporating molecular diagnostics and counseling will play a central role in optimizing patient outcomes.</div></div>","PeriodicalId":101191,"journal":{"name":"Surgical Oncology Insight","volume":"2 2","pages":"Article 100143"},"PeriodicalIF":0.0,"publicationDate":"2025-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143924575","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-04-25DOI: 10.1016/j.soi.2025.100142
George I. Salti , Isabella D. Salti , Aslam Ejaz , Shankar Logarajah
{"title":"Mitomycin C in HIPEC: A proposal to use abdominal cavity volume for drug dosage","authors":"George I. Salti , Isabella D. Salti , Aslam Ejaz , Shankar Logarajah","doi":"10.1016/j.soi.2025.100142","DOIUrl":"10.1016/j.soi.2025.100142","url":null,"abstract":"","PeriodicalId":101191,"journal":{"name":"Surgical Oncology Insight","volume":"2 2","pages":"Article 100142"},"PeriodicalIF":0.0,"publicationDate":"2025-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143923229","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The optimal location of the portal branch to be removed by liver resection that is less than a segmentectomy for patients with hepatocellular carcinoma (HCC) is elusive. This study examines the impact of removing the fourth branch on postsurgical outcomes.
Methods
HCC patients who underwent liver resection less extensive than segmentectomy (2015–2022) were included. The impact of removing the fourth branch of the tumor-bearing portal vein (PVR) on recurrence was evaluated using Gray and Fine-Gray methods, adjusted for confounding factors. Overall survival was assessed via the Kaplan-Meier method and log-rank test.
Results
Of the 89 patients eligible for this study, 47 were in the PVR group, and 42 were in the non-PVR group. The PVR group had a significantly lower median level of total bilirubin; however, other covariates related to liver function were comparable to those in the non-PVR group. Additionally, oncological and operative covariates were comparable between the two groups. The 1-, 3-, and 5-year cumulative incidences of recurrence were significantly lower in the PVR group than in the non-PVR group (10.9 %, 34.1 %, and 43.2 % vs. 21.6 %, 59.1 %, and 71.1 %, respectively; P = 0.01). The overall survival rates were comparable between the groups. Bivariable analysis was adjusted for recurrence using significant covariates identified by the univariable analysis and revealed that non-PVR surgery was associated with a significantly greater risk of HCC recurrence with any combination of other significant factors.
Conclusions
The risk of short-term intrahepatic recurrence may be reduced by liver resection via removal of the fourth branch of the portal vein.
{"title":"Liver resection that is less extensive than segmentectomy for hepatocellular carcinoma focused on the fourth branch of the portal vein","authors":"Shingo Shimada , Hiroyuki Takahashi, Shoichiro Mizukami, Yuki Adachi, Koji Imai, Hideki Yokoo","doi":"10.1016/j.soi.2025.100140","DOIUrl":"10.1016/j.soi.2025.100140","url":null,"abstract":"<div><h3>Background</h3><div>The optimal location of the portal branch to be removed by liver resection that is less than a segmentectomy for patients with hepatocellular carcinoma (HCC) is elusive. This study examines the impact of removing the fourth branch on postsurgical outcomes.</div></div><div><h3>Methods</h3><div>HCC patients who underwent liver resection less extensive than segmentectomy (2015–2022) were included. The impact of removing the fourth branch of the tumor-bearing portal vein (PVR) on recurrence was evaluated using Gray and Fine-Gray methods, adjusted for confounding factors. Overall survival was assessed via the Kaplan-Meier method and log-rank test.</div></div><div><h3>Results</h3><div>Of the 89 patients eligible for this study, 47 were in the PVR group, and 42 were in the non-PVR group. The PVR group had a significantly lower median level of total bilirubin; however, other covariates related to liver function were comparable to those in the non-PVR group. Additionally, oncological and operative covariates were comparable between the two groups. The 1-, 3-, and 5-year cumulative incidences of recurrence were significantly lower in the PVR group than in the non-PVR group (10.9 %, 34.1 %, and 43.2 % vs. 21.6 %, 59.1 %, and 71.1 %, respectively; P = 0.01). The overall survival rates were comparable between the groups. Bivariable analysis was adjusted for recurrence using significant covariates identified by the univariable analysis and revealed that non-PVR surgery was associated with a significantly greater risk of HCC recurrence with any combination of other significant factors.</div></div><div><h3>Conclusions</h3><div>The risk of short-term intrahepatic recurrence may be reduced by liver resection via removal of the fourth branch of the portal vein.</div></div>","PeriodicalId":101191,"journal":{"name":"Surgical Oncology Insight","volume":"2 2","pages":"Article 100140"},"PeriodicalIF":0.0,"publicationDate":"2025-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143783068","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-04-03DOI: 10.1016/j.soi.2025.100141
Sara Abou Azar , Joseph Tobias , Nicholas Feinberg , Daniel Appelbaum , Yonglin Pu , Frances Lee , Jason L. Schwarz , Jelani Williams , Rachel Nordgren , J. Michael Millis , Chih-Yi “Andy” Liao , Xavier M. Keutgen
Background
Surgical debulking for metastatic gastroenteropancreatic neuroendocrine tumors (GEP-NETs) is associated with increased progression-free survival (PFS) and overall survival (OS) in retrospective studies. It remains unclear, however, which patients benefit most from surgery. DOTATATE PET/CT tumor volume (TV) in metastatic GEP-NETs has been shown to correlate with PFS and OS. Herein, we investigate how TV impacts outcomes in patients undergoing surgical debulking for GEP-NETs.
Methods
A retrospective chart review was conducted of patients with pancreatic and small bowel NET (PNET/SBNET) who underwent surgical debulking at our institution from 2019 to 2022. All patients had an estimated liver debulking threshold of > 90 % and only patients with preoperative 68Ga or 64Cu-DOTATATE PET/CT were included. TV was obtained using the MIM Encore workstation.
Results
71 patients with metastatic GEP-NETs (35 % PNET and 65 % SBNET) underwent liver debulking with 19 synchronous primary tumor resections. 42 patients had symptomatic disease. Patients were divided into 4 TV quartiles, ranging from 8.46 to 2000 mL. On cox proportional hazards modeling, tumor volume stratified by quartiles was not significantly associated with longer PFS (p = 0.250) over a median follow-up of 13 months (7−23). However, there was an increased risk for Clavien-Dindo Grade III and IV complications with higher TV quartiles (p = 0.008). SBNETs with carcinoid syndrome (p = 0.047) and those with more lesions debulked (p = 0.025) were more likely to have improvement in postoperative symptoms.
Conclusion
Patients with larger tumor burden on preoperative DOTATATE PET/CT should not be excluded from surgical intervention but may need to be counseled on higher risks of operative complications.
{"title":"DOTATATE PET CT tumor volume as a predictor of surgical outcome in patients with metastatic gastroenteropancreatic neuroendocrine tumors","authors":"Sara Abou Azar , Joseph Tobias , Nicholas Feinberg , Daniel Appelbaum , Yonglin Pu , Frances Lee , Jason L. Schwarz , Jelani Williams , Rachel Nordgren , J. Michael Millis , Chih-Yi “Andy” Liao , Xavier M. Keutgen","doi":"10.1016/j.soi.2025.100141","DOIUrl":"10.1016/j.soi.2025.100141","url":null,"abstract":"<div><h3>Background</h3><div>Surgical debulking for metastatic gastroenteropancreatic neuroendocrine tumors (GEP-NETs) is associated with increased progression-free survival (PFS) and overall survival (OS) in retrospective studies. It remains unclear, however, which patients benefit most from surgery. DOTATATE PET/CT tumor volume (TV) in metastatic GEP-NETs has been shown to correlate with PFS and OS. Herein, we investigate how TV impacts outcomes in patients undergoing surgical debulking for GEP-NETs.</div></div><div><h3>Methods</h3><div>A retrospective chart review was conducted of patients with pancreatic and small bowel NET (PNET/SBNET) who underwent surgical debulking at our institution from 2019 to 2022. All patients had an estimated liver debulking threshold of > 90 % and only patients with preoperative <sup>68</sup>Ga or <sup>64</sup>Cu-DOTATATE PET/CT were included. TV was obtained using the MIM Encore workstation.</div></div><div><h3>Results</h3><div>71 patients with metastatic GEP-NETs (35 % PNET and 65 % SBNET) underwent liver debulking with 19 synchronous primary tumor resections. 42 patients had symptomatic disease. Patients were divided into 4 TV quartiles, ranging from 8.46 to 2000 mL. On cox proportional hazards modeling, tumor volume stratified by quartiles was not significantly associated with longer PFS (p = 0.250) over a median follow-up of 13 months (7−23). However, there was an increased risk for Clavien-Dindo Grade III and IV complications with higher TV quartiles (p = 0.008). SBNETs with carcinoid syndrome (p = 0.047) and those with more lesions debulked (p = 0.025) were more likely to have improvement in postoperative symptoms.</div></div><div><h3>Conclusion</h3><div>Patients with larger tumor burden on preoperative DOTATATE PET/CT should not be excluded from surgical intervention but may need to be counseled on higher risks of operative complications.</div></div>","PeriodicalId":101191,"journal":{"name":"Surgical Oncology Insight","volume":"2 2","pages":"Article 100141"},"PeriodicalIF":0.0,"publicationDate":"2025-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143790977","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-04-03DOI: 10.1016/j.soi.2025.100139
Elsa Hallab , Hanfei Qi , Mark Yarchoan , Christopher Shubert , Jeffrey Meyer , Kelly Lafaro , Jin He , William Burns , Richard Burkhart , Benjamin Philosophe , Elie Ghabi , Nilofer S. Azad , Jane Zorzi , Paige Griffith , Amol Narang , Ihab Kamel , Kelvin Hong , Christos Georgiades , Robert Liddell , Robert Anders , Marina Baretti
Background
Bile tract cancer (BTC) is a heterogeneous and aggressive malignancy with a poor prognosis. Surgical resection is the main potentially curative treatment, but only about 20–30 % of patients present with resectable disease. The benefit of neoadjuvant chemotherapy (NAC) in BTC remains controversial. We explored outcomes of patients with BTCs receiving NAC compared to those who underwent upfront surgical resection using a propensity score weighting approach.
Methods
We identified patients who underwent surgical resection for stage I-III BTC between 2019 and 2023 and were evaluated at the Johns Hopkins Liver Multidisciplinary Cancer Clinic (Liver MDC). Propensity score weighting (PSW) was used to balance groups. Groups were assessed for differences in pathological response, recurrence-free survival (RFS), and overall survival (OS). Hazard ratios (HRs) were estimated using the PSW Cox proportional hazard regression model.
Results
Among 56 BTC patients that fit the inclusion criteria, 34 underwent upfront surgery, and 22 received NAC. Patients receiving NAC were more likely to have higher risk disease compared to patients receiving upfront resection (77.3 % vs 23.5 %, p < 0.001), including tumor size greater than 5 cm (45.5 % vs 11.8 %, p = 0.0221), lymph node involvement on staging imaging (50.0 % vs 23.5 %, p = 0.0495), and a trend towards higher mean CA19–9 at diagnosis (258.7 vs 87.7 U/mL, p = 0.179). In the univariate analysis, the NAC group showed a trend toward shorter RFS compared to the upfront surgery group (15.1 months; 95 % CI 10.3-not available (NA) versus 23.5 months; 95 % CI 15.5-NA, HR= 2.24; 95 % CI: 0.88–5.69, p = 0.082). No significant differences were seen for OS (36.5 months; 95 % CI 26.5-NA versus 48.2 months; 95 % CI 44.5-NA, HR= 1.53; 95 % CI: 0.51–4.64–5.69, p = 0.448). Following PSW multivariable Cox analyses, receipt of NAC was associated with a trend toward reduced risk of recurrence (HR 0.83; 95 % CI 0.24–2.87 p = 0.7651) and death (HR 0.66; 95 % CI 0.2–2.16 p = 0.4890), although no statistically significant differences were observed.
Conclusion
These findings suggest that NAC may provide benefit for patients with higher-risk BTCs, achieving outcomes comparable to upfront surgical resection. The similar pathological results between the two groups further support the potential efficacy of neoadjuvant approaches. However, prospective trials are essential to definitively establish the optimal sequencing of chemotherapy and surgery in this patient population.
背景:膀胱癌(BTC)是一种异质性、侵袭性恶性肿瘤,预后较差。手术切除是主要的潜在治疗方法,但只有约20-30 %的患者存在可切除的疾病。新辅助化疗(NAC)对BTC的益处仍有争议。我们使用倾向评分加权法探讨了接受NAC的btc患者与接受前期手术切除的btc患者的预后。方法:我们确定了2019年至2023年间接受手术切除I-III期BTC的患者,并在约翰霍普金斯大学肝脏多学科癌症诊所(Liver MDC)进行了评估。倾向得分加权(PSW)用于平衡组。评估各组在病理反应、无复发生存期(RFS)和总生存期(OS)方面的差异。使用PSW Cox比例风险回归模型估计风险比(hr)。结果56例符合纳入标准的BTC患者中,34例接受了术前手术,22例接受了NAC。接受NAC的病人更有可能接受前期相比有更高的风险疾病患者切除(77.3 vs 23.5 % % p & lt; 0.001),包括肿瘤大小大于5 厘米(45.5 vs 11.8 % % p = 0.0221),淋巴结上参与举办成像(50.0 vs 23.5 % % p = 0.0495),和更高的趋势意味着CA19-9诊断(258.7 vs 87.7 U / mL, p = 0.179)。在单因素分析中,与术前手术组相比,NAC组显示出更短的RFS(15.1个月;95 % CI 10.3-不可用(NA)对23.5个月;95 % ci 15.5-na, hr = 2.24;95 % CI: 0.88-5.69, p = 0.082)。OS无显著差异(36.5个月;95 % CI 26.5-NA对48.2个月;95 % ci 44.5-na, hr = 1.53;95 % CI: 0.51-4.64-5.69, p = 0.448)。PSW多变量Cox分析显示,接受NAC与降低复发风险的趋势相关(HR 0.83;95 % CI 0.24-2.87 p = 0.7651)和死亡(HR 0.66;95 % CI 0.2-2.16 p = 0.4890),但未观察到统计学上的显著差异。结论:这些研究结果表明,NAC可能为高危btc患者提供益处,达到与术前手术切除相当的效果。两组相似的病理结果进一步支持了新辅助入路的潜在疗效。然而,前瞻性试验对于明确确定该患者群体化疗和手术的最佳顺序至关重要。
{"title":"Propensity score–weighted analysis of neoadjuvant therapy versus upfront surgical resection in patients with biliary tract cancers","authors":"Elsa Hallab , Hanfei Qi , Mark Yarchoan , Christopher Shubert , Jeffrey Meyer , Kelly Lafaro , Jin He , William Burns , Richard Burkhart , Benjamin Philosophe , Elie Ghabi , Nilofer S. Azad , Jane Zorzi , Paige Griffith , Amol Narang , Ihab Kamel , Kelvin Hong , Christos Georgiades , Robert Liddell , Robert Anders , Marina Baretti","doi":"10.1016/j.soi.2025.100139","DOIUrl":"10.1016/j.soi.2025.100139","url":null,"abstract":"<div><h3>Background</h3><div>Bile tract cancer (BTC) is a heterogeneous and aggressive malignancy with a poor prognosis. Surgical resection is the main potentially curative treatment, but only about 20–30 % of patients present with resectable disease. The benefit of neoadjuvant chemotherapy (NAC) in BTC remains controversial. We explored outcomes of patients with BTCs receiving NAC compared to those who underwent upfront surgical resection using a propensity score weighting approach.</div></div><div><h3>Methods</h3><div>We identified patients who underwent surgical resection for stage I-III BTC between 2019 and 2023 and were evaluated at the Johns Hopkins Liver Multidisciplinary Cancer Clinic (Liver MDC). Propensity score weighting (PSW) was used to balance groups. Groups were assessed for differences in pathological response, recurrence-free survival (RFS), and overall survival (OS). Hazard ratios (HRs) were estimated using the PSW Cox proportional hazard regression model.</div></div><div><h3>Results</h3><div>Among 56 BTC patients that fit the inclusion criteria, 34 underwent upfront surgery, and 22 received NAC. Patients receiving NAC were more likely to have higher risk disease compared to patients receiving upfront resection (77.3 % vs 23.5 %, p < 0.001), including tumor size greater than 5 cm (45.5 % vs 11.8 %, p = 0.0221), lymph node involvement on staging imaging (50.0 % vs 23.5 %, p = 0.0495), and a trend towards higher mean CA19–9 at diagnosis (258.7 vs 87.7 U/mL, p = 0.179). In the univariate analysis, the NAC group showed a trend toward shorter RFS compared to the upfront surgery group (15.1 months; 95 % CI 10.3-not available (NA) versus 23.5 months; 95 % CI 15.5-NA, HR= 2.24; 95 % CI: 0.88–5.69, p = 0.082). No significant differences were seen for OS (36.5 months; 95 % CI 26.5-NA versus 48.2 months; 95 % CI 44.5-NA, HR= 1.53; 95 % CI: 0.51–4.64–5.69, p = 0.448). Following PSW multivariable Cox analyses, receipt of NAC was associated with a trend toward reduced risk of recurrence (HR 0.83; 95 % CI 0.24–2.87 p = 0.7651) and death (HR 0.66; 95 % CI 0.2–2.16 p = 0.4890), although no statistically significant differences were observed.</div></div><div><h3>Conclusion</h3><div>These findings suggest that NAC may provide benefit for patients with higher-risk BTCs, achieving outcomes comparable to upfront surgical resection. The similar pathological results between the two groups further support the potential efficacy of neoadjuvant approaches. However, prospective trials are essential to definitively establish the optimal sequencing of chemotherapy and surgery in this patient population.</div></div>","PeriodicalId":101191,"journal":{"name":"Surgical Oncology Insight","volume":"2 2","pages":"Article 100139"},"PeriodicalIF":0.0,"publicationDate":"2025-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143839513","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-03-20DOI: 10.1016/j.soi.2025.100137
Marcelo P. Bigarella , John M. Floberg , David Jarrard
Purpose of review
In this review, the current literature available to patients and providers on the multidisciplinary management of nonmetastatic locally advanced prostate cancer (T3-T4N0M0) was reviewed. Topics include the definition of the disease, the distinction between nonmetastatic locally advanced prostate cancer and locally advanced prostate cancer defined by the EUA and high-risk prostate cancer by NCCN and AUA guidelines, the role of radiation therapy in addition to androgen deprivation therapy, the current role of surgery and lypmh node dissectionthe difference between adjuvant vs. salvage treatment for such patients. Although there are multiple curative treatment approaches for locally advanced prostate cancer, no consensus regarding the optimal treatment option exists.
Recent findings
Historically, the use of androgen deprivation therapy (ADT) and external beam radiotherapy (EBRT) has been used in locally advanced prostate cancer1. More recently, retrospective observational data showed equivalent results for patients undergoing primary radical prostatectomy with radiation therapy reserved as an adjuvant or salvage treatment as needed, and better outcomes were seen after advances in patient selection which include improvements in staging imaging with mpMRI and PSMA PET2,3. Adjuvant radiation based on adverse features on pathology has also come into dispute, with early salvage showing non-inferior oncological outcomes and a more favorable toxicity profile.
Summary
Until high-level evidence evaluating surgery versus EBRT plus androgen deprivation therapy (ADT) for locally advanced disease is available as a result of the ongoing trial SPCG-15, options for patients with locally advanced prostate cancer include local radiotherapy in combination with androgen deprivation therapy (level I evidence) and radical prostatectomy with pelvic lymph node dissection for well-selected patients. Early salvage radiotherapy is non-inferior to adjuvant radiation.
{"title":"Multidisciplinary management of nonmetastatic locally advanced prostate cancer (T3-4N0M0)","authors":"Marcelo P. Bigarella , John M. Floberg , David Jarrard","doi":"10.1016/j.soi.2025.100137","DOIUrl":"10.1016/j.soi.2025.100137","url":null,"abstract":"<div><h3>Purpose of review</h3><div>In this review, the current literature available to patients and providers on the multidisciplinary management of nonmetastatic locally advanced prostate cancer (T3-T4N0M0) was reviewed. Topics include the definition of the disease, the distinction between nonmetastatic locally advanced prostate cancer and locally advanced prostate cancer defined by the EUA and high-risk prostate cancer by NCCN and AUA guidelines, the role of radiation therapy in addition to androgen deprivation therapy, the current role of surgery and lypmh node dissectionthe difference between adjuvant vs. salvage treatment for such patients. Although there are multiple curative treatment approaches for locally advanced prostate cancer, no consensus regarding the optimal treatment option exists.</div></div><div><h3>Recent findings</h3><div>Historically, the use of androgen deprivation therapy (ADT) and external beam radiotherapy (EBRT) has been used in locally advanced prostate cancer<sup>1</sup>. More recently, retrospective observational data showed equivalent results for patients undergoing primary radical prostatectomy with radiation therapy reserved as an adjuvant or salvage treatment as needed, and better outcomes were seen after advances in patient selection which include improvements in staging imaging with mpMRI and PSMA PET<sup>2,3</sup>. Adjuvant radiation based on adverse features on pathology has also come into dispute, with early salvage showing non-inferior oncological outcomes and a more favorable toxicity profile.</div></div><div><h3>Summary</h3><div>Until high-level evidence evaluating surgery versus EBRT plus androgen deprivation therapy (ADT) for locally advanced disease is available as a result of the ongoing trial SPCG-15, options for patients with locally advanced prostate cancer include local radiotherapy in combination with androgen deprivation therapy (level I evidence) and radical prostatectomy with pelvic lymph node dissection for well-selected patients. Early salvage radiotherapy is non-inferior to adjuvant radiation.</div></div>","PeriodicalId":101191,"journal":{"name":"Surgical Oncology Insight","volume":"2 2","pages":"Article 100137"},"PeriodicalIF":0.0,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143725024","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-03-19DOI: 10.1016/j.soi.2025.100138
M.R. Jansen , J.J. Bonenkamp , M. Jalving , L.B. Been , B.L. van Leeuwen
Background
Modern systemic therapies for stage IV melanoma often result in remarkable and durable responses. Consequently, the indications for surgical resection in stage IV melanoma patients are evolving and remain debated. This study examines the survival and morbidity following metastasectomy for stage IV melanoma in the era of systemic therapy.
Methods
A multicenter, retrospective cohort study was conducted at the University Medical Center Groningen and Radboud University Medical Center Nijmegen. Adult patients with stage IV (AJCC 8th) melanoma who received systemic therapy and had metastasectomy between 2010 and 2020 were included. Outcomes were overall survival (OS), progression-free survival (PFS), and morbidity following metastasectomy.
Results
Forty-four patients were included (median age 57 years; 54.5 % females). Twenty-five (56.8 %) patients underwent metastasectomy to achieve no evidence of disease and 19 (43.2 %) patients for symptomatic metastases. The most common procedures were small bowel segmental resections (38.6 %) and skin/soft tissue excisions (19.3 %). Postoperative complications occurred in seven (15.9 %) patients and were mostly treated conservatively. During a median follow-up of 139 months, mean OS was 92 months, and median PFS was 23 months. Patients who experienced at a least partial response to systemic treatment before metastasectomy (HR 0.24, p = 0.029) and had treatment from 2016 (HR 0.21, p = 0.004) had prolonged OS.
Conclusions
Metastasectomy in selected stage IV melanoma patients was associated with favorable OS, particularly in patients who had at least a partial response to systemic treatment prior to metastasectomy and had treatment from 2016. Postoperative morbidity was acceptable.
Synopsis
This study evaluates the survival and morbidity following metastasectomy for stage IV melanoma in the era of systemic therapy, revealing favorable outcomes, particularly in patients with at least a partial response to systemic treatment prior to surgery and who had treatment after 2016.
背景:IV期黑色素瘤的现代全身治疗通常会产生显着和持久的反应。因此,IV期黑色素瘤患者手术切除的适应症正在不断发展,并仍存在争议。本研究探讨了在系统性治疗时代IV期黑色素瘤转移切除术后的生存率和发病率。方法在格罗宁根大学医学中心和奈梅亨大学医学中心进行多中心、回顾性队列研究。在2010年至2020年期间接受全身治疗并进行转移切除术的成年IV期(AJCC第8期)黑色素瘤患者被纳入研究。结果是总生存期(OS)、无进展生存期(PFS)和转移瘤切除术后的发病率。结果纳入44例患者(中位年龄57岁;54.5女性 %)。25例(56.8% %)患者接受了转移切除术,没有发现疾病的证据,19例(43.2% %)患者出现了症状性转移。最常见的手术是小肠切除术(38.6% %)和皮肤/软组织切除术(19.3% %)。术后并发症7例(15.9 %),多采用保守治疗。中位随访139个月,平均OS为92个月,中位PFS为23个月。转移瘤切除术前接受全身治疗至少部分缓解的患者(HR 0.24, p = 0.029)和2016年开始接受治疗的患者(HR 0.21, p = 0.004)的OS延长。结论:在选定的IV期黑色素瘤患者中,转移瘤切除术与良好的OS相关,特别是在转移瘤切除术前对全身治疗至少有部分反应并从2016年开始治疗的患者中。术后发病率可接受。本研究评估了在全身治疗时代IV期黑色素瘤转移切除术后的生存率和发病率,揭示了良好的结果,特别是在手术前对全身治疗至少有部分反应的患者和2016年以后接受治疗的患者。
{"title":"Survival and morbidity following metastasectomy for stage IV melanoma in the era of systemic therapy: A multicenter retrospective cohort study","authors":"M.R. Jansen , J.J. Bonenkamp , M. Jalving , L.B. Been , B.L. van Leeuwen","doi":"10.1016/j.soi.2025.100138","DOIUrl":"10.1016/j.soi.2025.100138","url":null,"abstract":"<div><h3>Background</h3><div>Modern systemic therapies for stage IV melanoma often result in remarkable and durable responses. Consequently, the indications for surgical resection in stage IV melanoma patients are evolving and remain debated. This study examines the survival and morbidity following metastasectomy for stage IV melanoma in the era of systemic therapy.</div></div><div><h3>Methods</h3><div>A multicenter, retrospective cohort study was conducted at the University Medical Center Groningen and Radboud University Medical Center Nijmegen. Adult patients with stage IV (AJCC 8th) melanoma who received systemic therapy and had metastasectomy between 2010 and 2020 were included. Outcomes were overall survival (OS), progression-free survival (PFS), and morbidity following metastasectomy.</div></div><div><h3>Results</h3><div>Forty-four patients were included (median age 57 years; 54.5 % females). Twenty-five (56.8 %) patients underwent metastasectomy to achieve no evidence of disease and 19 (43.2 %) patients for symptomatic metastases. The most common procedures were small bowel segmental resections (38.6 %) and skin/soft tissue excisions (19.3 %). Postoperative complications occurred in seven (15.9 %) patients and were mostly treated conservatively. During a median follow-up of 139 months, mean OS was 92 months, and median PFS was 23 months. Patients who experienced at a least partial response to systemic treatment before metastasectomy (HR 0.24, <em>p</em> = 0.029) and had treatment from 2016 (HR 0.21, <em>p</em> = 0.004) had prolonged OS.</div></div><div><h3>Conclusions</h3><div>Metastasectomy in selected stage IV melanoma patients was associated with favorable OS, particularly in patients who had at least a partial response to systemic treatment prior to metastasectomy and had treatment from 2016. Postoperative morbidity was acceptable.</div></div><div><h3>Synopsis</h3><div>This study evaluates the survival and morbidity following metastasectomy for stage IV melanoma in the era of systemic therapy, revealing favorable outcomes, particularly in patients with at least a partial response to systemic treatment prior to surgery and who had treatment after 2016.</div></div>","PeriodicalId":101191,"journal":{"name":"Surgical Oncology Insight","volume":"2 2","pages":"Article 100138"},"PeriodicalIF":0.0,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143680943","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-03-17DOI: 10.1016/j.soi.2025.100136
Toshiyuki Kitai, Kenya Yamanaka
Cytoreductive surgery and hyperthermic intraperitoneal chemotherapy (CRS+HIPEC) improved survival in appropriately selected patients with peritoneal carcinomatosis. Guideline recommendations are important for its promotion. However, this treatment is not performed widely in Japan. The disparity in practice may be reflected in the national guidelines. Recommendations were compared between 5 sets of guidelines each in Western countries and Japan. 1) The role of CRS was established for colorectal and ovarian cancers whereas that of HIPEC was controversial in Western countries. On the other hand, neither was recommended for colon cancer, and HIPEC was recommended only in research for ovarian cancer in Japan. 2) Potential effects in a limited cases were recognized for gastric cancer in the Western guidelines. 3) Resection for localized metastasis for colon cancer and intraperitoneal chemotherapy for ovarian and gastric cancers were recommended in Japan instead of CRS+HIPEC. 4) CRS+HIPEC is recommended as a first-line treatment for pseudomyxoma peritonei and peritoneal mesothelioma in Western countries but recommended only for pseudomyxoma in Japan. There is a disparity in the guidelines for CRS+HIPEC, which is attributed to not being widely performed in Japan.
Synopsis
The disparity in practice may be reflected in the national guidelines for cytoreductive surgery and hyperthermic intraperitoneal chemotherapy. Recommendations were towards to more negative in Japan than in Western countries. This is attributed to not being widely performed in Japan. It is necessary to achieve social consensus on this treatment.
{"title":"National disparity in guidelines for cytoreductive surgery and hyperthermic intraperitoneal chemotherapy for peritoneal carcinomatosis","authors":"Toshiyuki Kitai, Kenya Yamanaka","doi":"10.1016/j.soi.2025.100136","DOIUrl":"10.1016/j.soi.2025.100136","url":null,"abstract":"<div><div>Cytoreductive surgery and hyperthermic intraperitoneal chemotherapy (CRS+HIPEC) improved survival in appropriately selected patients with peritoneal carcinomatosis. Guideline recommendations are important for its promotion. However, this treatment is not performed widely in Japan. The disparity in practice may be reflected in the national guidelines. Recommendations were compared between 5 sets of guidelines each in Western countries and Japan. 1) The role of CRS was established for colorectal and ovarian cancers whereas that of HIPEC was controversial in Western countries. On the other hand, neither was recommended for colon cancer, and HIPEC was recommended only in research for ovarian cancer in Japan. 2) Potential effects in a limited cases were recognized for gastric cancer in the Western guidelines. 3) Resection for localized metastasis for colon cancer and intraperitoneal chemotherapy for ovarian and gastric cancers were recommended in Japan instead of CRS+HIPEC. 4) CRS+HIPEC is recommended as a first-line treatment for pseudomyxoma peritonei and peritoneal mesothelioma in Western countries but recommended only for pseudomyxoma in Japan. There is a disparity in the guidelines for CRS+HIPEC, which is attributed to not being widely performed in Japan.</div></div><div><h3>Synopsis</h3><div>The disparity in practice may be reflected in the national guidelines for cytoreductive surgery and hyperthermic intraperitoneal chemotherapy. Recommendations were towards to more negative in Japan than in Western countries. This is attributed to not being widely performed in Japan. It is necessary to achieve social consensus on this treatment.</div></div>","PeriodicalId":101191,"journal":{"name":"Surgical Oncology Insight","volume":"2 2","pages":"Article 100136"},"PeriodicalIF":0.0,"publicationDate":"2025-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143680936","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-03-17DOI: 10.1016/j.soi.2025.100135
Quratulain Sabih , Opuruiche Ibekwe , Carmelo Gaudioso , Kristopher M. Attwood , Ellis G. Levine , Stephen B. Edge , Chukwumere E. Nwogu
Background
Multidisciplinary cancer conferences (MCCs) are the standard approach for managing complex breast cases and technology can facilitate these meetings. The objectives of this study were to assess the impact of technology on quality of patient information, case deliberation, and various outcome measures.
Methods
We conducted a prospective study from September 2020 to February 2022, before and after implementation of a digital platform for tumor boards. We collected observational and survey data to assess its impact on quality of breast MCC case presentation and discussion. We also reviewed medical records to compare outcomes including rate of change in care plans, compliance of care plans with national guidelines, concordance of treatment received with MCC recommendations and time from MCC presentation to treatment. Comparisons were made using the Mann-Whitney U and Fisher’s exact tests.
Results
There were 39 pre- and 47 post-digital platform patient cases. We found that implementation of technology led to an improvement in the quality of the MCCs (median composite scores: 56.9 vs 68.4; p < 0.001). Specific components significantly improved included case history, reason for presentation, radiology and pathology presentations, and medical oncology contribution to case discussions (mean scores: 3.4 vs 3.9, 3.3 vs 3.9, 2.7 vs 4.1, 3.1 vs 4.2; (p < 0.001), & 3.7 vs 4.1; p = 0.05). There was also an improvement in the frequency of arrival at consensus (71.8 % vs 95.7 %; p < 0.012).
Conclusion
A tumor board digital platform was shown to improve the quality of presented patient information, physician engagement, and arrival at consensus at multidisciplinary breast cancer conferences.
Synopsis
Multidisciplinary cancer conferences (MCCs) play an important role in breast cancer management. We evaluated the impact of a tumor board-specific technology on the quality of breast MCCs and subsequent care. We found that technology improved the quality of information presented and physician engagement.
多学科癌症会议(mcs)是处理复杂乳腺癌病例的标准方法,技术可以促进这些会议。本研究的目的是评估技术对患者信息质量、病例审议和各种结果测量的影响。方法:我们在2020年9月至2022年2月实施肿瘤板数字平台前后进行了一项前瞻性研究。我们收集了观察和调查数据,以评估其对乳腺MCC病例报告和讨论质量的影响。我们还审查了医疗记录,以比较结果,包括护理计划的变化率、护理计划对国家指南的依从性、接受的治疗与MCC建议的一致性以及从MCC出现到治疗的时间。使用Mann-Whitney U和Fisher的精确测试进行了比较。结果数字化平台术前39例,数字化平台后47例。我们发现技术的实施导致mcc质量的改善(中位综合得分:56.9 vs 68.4;p & lt; 0.001)。显著改善的具体成分包括病史、表现原因、放射学和病理学表现,以及医学肿瘤学对病例讨论的贡献(平均得分:3.4 vs 3.9, 3.3 vs 3.9, 2.7 vs 4.1, 3.1 vs 4.2;0.001 (p & lt; ),,3.7 vs 4.1; = 0.05页)。达成共识的频率也有所提高(71.8 % vs 95.7% %;p & lt; 0.012)。结论肿瘤委员会数字平台可以提高患者信息的质量,提高医生的参与度,并在多学科乳腺癌会议上达成共识。多学科癌症会议(mcs)在乳腺癌管理中发挥着重要作用。我们评估了肿瘤板特异性技术对乳腺mcc质量和后续护理的影响。我们发现技术提高了提供信息的质量和医生的参与度。
{"title":"Impact of a technology enhanced breast multidisciplinary cancer conference","authors":"Quratulain Sabih , Opuruiche Ibekwe , Carmelo Gaudioso , Kristopher M. Attwood , Ellis G. Levine , Stephen B. Edge , Chukwumere E. Nwogu","doi":"10.1016/j.soi.2025.100135","DOIUrl":"10.1016/j.soi.2025.100135","url":null,"abstract":"<div><h3>Background</h3><div>Multidisciplinary cancer conferences (MCCs) are the standard approach for managing complex breast cases and technology can facilitate these meetings. The objectives of this study were to assess the impact of technology on quality of patient information, case deliberation, and various outcome measures.</div></div><div><h3>Methods</h3><div>We conducted a prospective study from September 2020 to February 2022, before and after implementation of a digital platform for tumor boards. We collected observational and survey data to assess its impact on quality of breast MCC case presentation and discussion. We also reviewed medical records to compare outcomes including rate of change in care plans, compliance of care plans with national guidelines, concordance of treatment received with MCC recommendations and time from MCC presentation to treatment. Comparisons were made using the Mann-Whitney U and Fisher’s exact tests.</div></div><div><h3>Results</h3><div>There were 39 pre- and 47 post-digital platform patient cases. We found that implementation of technology led to an improvement in the quality of the MCCs (median composite scores: 56.9 vs 68.4; p < 0.001). Specific components significantly improved included case history, reason for presentation, radiology and pathology presentations, and medical oncology contribution to case discussions (mean scores: 3.4 vs 3.9, 3.3 vs 3.9, 2.7 vs 4.1, 3.1 vs 4.2; (p < 0.001), & 3.7 vs 4.1; p = 0.05). There was also an improvement in the frequency of arrival at consensus (71.8 % vs 95.7 %; p < 0.012).</div></div><div><h3>Conclusion</h3><div>A tumor board digital platform was shown to improve the quality of presented patient information, physician engagement, and arrival at consensus at multidisciplinary breast cancer conferences.</div></div><div><h3>Synopsis</h3><div>Multidisciplinary cancer conferences (MCCs) play an important role in breast cancer management. We evaluated the impact of a tumor board-specific technology on the quality of breast MCCs and subsequent care. We found that technology improved the quality of information presented and physician engagement.</div></div>","PeriodicalId":101191,"journal":{"name":"Surgical Oncology Insight","volume":"2 2","pages":"Article 100135"},"PeriodicalIF":0.0,"publicationDate":"2025-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143739314","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}