PERIPANCREATIC ARTERIAL LIGATION COMBINED WITH ARTERIAL INFUSION REGIONAL CHEMOTHERAPY FOR TREATING PATIENTS WITH ADVANCED PANCREATIC CARCINOMA

Objective To find out a new treatment method for advanced pancreatic carcinoma. Methods Twenty nine patients with advanced pancreatic carcinoma and liver metastases were randomly divided into 2 groups.Group A ( n =11) underwent bilio enterostomy and/or gastro enterostomy combined with systemic chemotherapy after operation;Group B( n =18) underwent bilio enterostomy and/or gastro enterostomy combined with peripancreatic arterial ligation and arterial infusion regional chemotherapy.The alleviation of clinical symptom,the change of carcinoma volume by BUS and CT scan,survival period and serum CEA were observed in two groups. Results The symptoms were alleviated apparently in most cases in Group B;BUS and CT scan showed that the tumor volume decreased apparently in Group B;The response rate was 67.7% in Group B,and 18.2% in Group A,respectively( P <0.01);the mean survival period was (4.8±0.6) months in Group A,and (12.5±1.2) months in Group B,respectively( P <0.01),there was significant difference between the two groups.The decrease of serum CEA was 54% in Group A and 60% in Group B,but the difference was not significant( P >0.05). Conclusion Peripancreatic arterial ligation combined with arterial infusion regional chmotherapy is believed to be effective against both pancreatic carcinoma and liver metastases,and it can alleviate the clinical symptoms,postpone the growth speed of tumor,and prolong the survival period.

Analysis of the efficacy of transcatheter arterial infusion chemotherapy in the treatment of pancreatic carcinoma

Objective:To evaluate the clinical efficacy of infusion of gemcitabine(GEM) and fluorouracil(5-FU)through the celiac artery and superior mesenteric artery in the treatment of pancreatic carcinoma(PC).Methods:We analyzed 20 patients diagnosed clinically or pathologically with PC,without metastases,who had an estimated survival duration of>3 months in our department from May 2009 to December 2014.Nine patients were treated directly without surgical resection of the tumor,while the other 11 patients were treated after surgery.In all patients,the femoral artery was punctured using the Seldinger technique,and a catheter was placed in the opening of the celiac artery or the superior mesenteric artery.We administered 500 mg/m2 GEM and 500 mg/m2 5-FU.Observational data included data on clinical efficacy and survival rates during the follow-up period of 3-72 months.Results:Twenty patients were treated 85 times with transcatheter arterial infusion chemotherapy(TAI).The survival rates were 80%,40%,35%,20%,10%,and 5% at 3,6,12,24,and 72 months,respectively.Conclusion: TAI chemotherapy with GEM and 5-FU may be a therapeutic option for the treatment of PC.

Gemcitabine and oxaliplatin combination chemotherapy in 30 patients with advanced pancreatic carcinoma

Objective: To evaluate the activity and safety of combination chemotherapy with gemcitabine plus oxaliplatin (GEMOX regimen) in patients of advanced pancreatic carcinoma. Methods: 30 patients with advanced pancreatic cancer were enrolled into this study. All patients received gemcitabine 1000 mg/m2, given by 30-minute intravenous infusion, on days 1 and 8 of each 21-day cycle. Oxaliplatin 100 mg/m2 was administered as a 2 h infusion on day 1 of each 21 day. Clinical outcomes for patients treated with two cycles of chemotherapy were evaluated according to WHO criteria. Results: All 30 patients were eligible for effectiveness and safety analysis. Objective response rate was approximately 20.0%. Clinical benefit response (CBR) was a composite of assessment of pain, performance status and body weight. The pain relief rate, improve-ment rate of performance status and body weight were 53.3%, 46.7% and 36.7%, respectively. The main adverse effects were bone marrow depression, peripheral nerve toxicity and gastrointestinal reaction. There was no treatment-related death during the chemotherapy. Conclusion: The high response rate with low toxicity observed in this study suggests that GEMOX regimen may be an effective alternative curative treatment for patients with advanced pancreatic carcinoma and can be used more extensively in clinical practice.

Future therapies for pancreatic carcinoma:Insights into cancer precision medicine

Pancreatic carcinoma(PC)has one of the highest rates of cancer-related death worldwide.Except for surgery,adjuvant chemotherapy,chemoradiotherapy,and immunotherapy have shown various efficacies depending on the stage of the patient.We read the review“Current and emerging therapeutic strategies in pancreatic cancer:Challenges and opportunities”and offer some opinions that may improve its precision and completeness.This review presents a map of appropriate therapies for PC at different stages.Based on the clinical trial outcomes mentioned in the review,we evaluated the potential therapeutic options for PC and helped explain the contradictory efficacy between different programmed cell death protein 1/programmed cell death ligand 1 clinical trials,which may have resulted from the unique features of PC.Although R0 resection and adjuvant chemotherapy are still the gold standards for PC,new modalities,with or without clinical validation,are needed to establish more specific and precise treatments for PC.

Peripancreatic artery ligation and artery infusion chemotherapy for advanced pancreatic carcinoma

Objective To develop a new treatment for advanced pancreatic carcinoma. Methods Twenty-nine patients with advanced pancreatic carcinoma (12 patients with liver metastasis at the same time) were randomly divided into two groups. In group A (n=11), patients underwent bilio-enterostomy and/or gastro-enterostomy combined with systemic chemotherapy after surgery. In group B (n=18), patients underwent bilio-enterostomy and/or gastro-enterostomy combined with peripancreatic arterial ligation and arterial infusion regional chemotherapy. Twenty-four patients were followed up for 3-18 months. The palliation of clinical symptoms, changes in carcinoma size by B ultrasound (BUS) and CT scan, survival period and serum carcinoembryonic antigen (CEA) were observed and compared between the two groups. Results Symptoms were alleviated in most patients in group B, and BUS and CT scan showed that tumor volume decreased in group B. The response rate was 66.7% in group B and 18.2% in group A (P<0.01). The mean survival period was 4.8±0.6 months in group A and 12.5±1.2 months in group B (P<0.01); there were significant differences between the two groups. The decrease in serum CEA was 54% in group A and 60% in group B; the difference was not significant (P>0.05). Conclusion Peripancreatic arterial ligation combined with arterial infusion regional chemotherapy is effective against both pancreatic carcinoma and with liver metastases. It can alleviate clinical symptoms, postpone the growth rate of tumor and prolong the survival period.

INTERNAL DRAINAGE COMBINED WITH INTRAOPERATIVE RADIOTHERAPY AND CHEMOTHERAPY FORPANCREATIC HEAD CARCINOMA

Abstract: To improve the palliative effect on intermediate or advanced pancreatic head carcinoma. Methods: Operations were performed in 26 patients with intermediated or advanced pancreatic head carcinoma. Cholecystojejunostomy or choledochojejunostomy combined with intraoperative radiotherapy with an electron beam on carcinoma were performed from May, 1996 to May, 1998. Meanwhile the catheter of multifunctional implantable drug delivery system was inserted via gastroduodenal artery for postoperative perfusion chemotherapy. Result: The 3–27 month follow-up survey suggested that the tumors shrank in different degrees after the course of treatment. All patients were relieved of pain. The 6-month, 12-month and 24-month survival rates were 100%, 93.9% and 20% respectively. The average survival time of the 5 dead patients was 17.8 months. Conclusion: This operation is very effect to prolong the life of the patients with intermediate or advanced pancreatic head carcinoma.

Improved survival for hepatocellular carcinoma with portal vein tumor thrombosis treated by intra-arterial chemotherapy combining etoposide,carboplatin,epirubicin and pharmacokinetic modulating chemotherapy by 5-FU and enteric-coated tegafur/uracil:A pilo

AIM： To investigate the poor prognosis of HCC with PVTT, we evaluated the efficacy by a new combination chemotherapy for advanced hepatocellular carcinoma （HCC） with portal vein tumor thrombus （PVTT）. METHODS： From 2002 to 2007, a total of 10 consecutive patients with Stage IVA HCC accompanied by PVTT were studied prospectively to examine the efficacy of treatment by intra-arterial infusion of a chemotherapeutic agents consisting of etoposide, carboplatin, epirubicin and pharmacokinetic modulating chemotherapy by 5-FU and enteric-coated tegafur/uracil. RESULTS： The mean course of chemotherapy was 14.4 （range, 9-21） too. One patient showed complete response （CR） with disappearance of HCC and PVI-F after treatment, and the two patients showed partial response （PR）, response rate （CR ＋ PR/All cases 30%）. The median survival time after the therapy was 457.2 d. The one-year survival rate was 70%. Adverse reactions were tolerable.CONCLUSION： Although the prognosis of most patients with Stage IVA HCC by PVTT is poor, our combination chemotherapy may induces long-term survival and is an effective treatment and produced anti-tumor activity with tolerable adverse effects in patients for advanced Stage IVA HCC accompanied by PVTT.

Membrane-camouflaged supramolecular nanoparticles for co-delivery of chemotherapeutic and molecular-targeted drugs with siRNA against patient-derived pancreatic carcinoma

Pancreatic cancer remains one of the most lethal malignancies worldwide. The combination of the first-line standard agent gemcitabine(GEM) with the molecular-targeted drug erlotinib(Er) has emerged as a promising strategy for pancreatic cancer treatment. However, the clinical benefit from this combination is still far from satisfactory due to the unfavorable drug antagonism and the fibrotic tumor microenvironment. Herein, we propose a membrane-camouflaged dual stimuliresponsive delivery system for the co-delivery of GEM and Er into pancreatic cancer cells and tissues to block the antagonism, as well as reshapes profibrotic tumor microenvironment via simultaneous delivery of small interference RNA(siRNA) for synergistic pancreatic cancer treatment. This “all-in-one”delivery system exhibits sensitive GSH and pH-dependent drug release profiles and enhances the inhibitory effects on the proliferation and migration of tumor cells in vitro. Excitingly, the systemic injection of such a biomimetic drug co-delivery system not only resulted in superior inhibitory effects against orthotopic pancreatic tumor and patient-derived tumor(PDX), but also greatly extended the survival rate of tumor-bearing mice. Our findings provide a promising therapeutic strategy against pancreatic cancer through the enhanced synergistic effect of target therapy, chemotherapy and anti-fibrotic therapy, which represents an appealing way for pancreatic cancer treatment.

First-line chemotherapy in very elderly patients with metastatic pancreatic cancer:Gemcitabine monotherapy vs combination chemotherapy

BACKGROUND Combination chemotherapy(gemcitabine plus nab-paclitaxel and FOLFIRINOX)is widely used as the standard first-line treatment for pancreatic cancer.Considering the severe toxicities of combination chemotherapy,gemcitabine monotherapy(G mono)could be used as a first-line treatment in very elderly patients or those with a low Eastern Cooperative Oncology Group status.However,reports on the efficacy of G mono in patients older than 75 years are limited.AIM To evaluate the efficacy of G mono and combination chemotherapy by comparing their clinical outcomes in very elderly patients with pancreatic cancer.METHODS We retrospectively analyzed 104 older patients with pancreatic cancer who underwent chemotherapy with G mono(n=45)or combination therapy(n=59)as a first-line treatment between 2011 and 2019.All patients were histologically diagnosed with ductal adenocarcinoma.Primary outcomes were progression-free survival and overall survival.We also analyzed subgroups according to age[65-74 years(elderly)and≥75 years(very elderly)].Propensity score matching was performed to compare the outcomes between the two chemotherapy groups.RESULTS The baseline characteristics were significantly different between the two chemotherapy groups,especially regarding age,ratio of multiple metastases,tumor burden,and Eastern Cooperative Oncology Group performance status.After propensity score matching,the baseline characteristics were not significantly different between the chemotherapy groups in elderly and very elderly patients.In the elderly patients,the median progression-free survival(62 d vs 206 d,P=0.000)and overall survival(102 d vs 302 d,P=0.000)were longer in the combination chemotherapy group.However,in the very elderly patients,the median progression-free survival(147 d and 174 d,respectively,P=0.796)and overall survival(227 d and 211 d,respectively,P=0.739)were comparable between the G mono and combination chemotherapy groups.Adverse events occurred more frequently in the combination chemotherapy group than in the G mono group,especially thromboembolism(G mono vs nab-paclitaxel vs FOLFIRINOX;8.9%vs 5.9%vs 28%,P=0.041),neutropenia(40.0%vs 76.5%vs 84.0%,P=0.000),and neuropathy(0%vs 61.8%vs 28.0%,P=0.006).CONCLUSION In elderly patients,combination therapy is more effective than G mono.However,G mono is superior for the management of metastatic pancreatic cancer in very elderly patients.

肝动脉灌注化疗联合仑伐替尼治疗巴塞罗那临床肝癌B或C期肝细胞癌

目的观察肝动脉灌注化疗(HAIC)联合仑伐替尼治疗巴塞罗那临床肝癌(BCLC)B或C期肝细胞癌(HCC)效果,分析影响患者生存时间的因素。方法 回顾性分析104例BCLC B或C期HCC患者资料,根据治疗方案将其归入观察组(46例,接受HAIC联合仑伐替尼治疗)及对照组(58例,仅接受HAIC);比较2组疗效、不良反应及患者总生存期(OS)和无进展生存期(PFS),以Cox回归分析评估OS影响因素。结果 治疗后3、6个月,观察组改良实体瘤疗效评价标准(mRECIST)评估结果均优于对照组(P均<0.05);治疗后1年,组间mRECIST评估结果差异无统计学意义(P>0.05)。观察组患者总生存率高于对照组(P<0.05),而组间无进展生存率差异无统计学意义(P>0.05)。观察组皮疹发生率高于对照组(P<0.05)。多因素Cox回归分析结果显示,相比单一HAIC,HAIC联合仑伐替尼[风险比(HR)=0.425,95%CI(0.255,0.791)]可延长患者OS;相比治疗前美国东部肿瘤协作组(ECOG)评分1、AFP≥400μg/ml、瘤灶数目≥3及BCLC C期,治疗前ECOG评分0、AFP<400μg/ml、瘤灶数目≤2及BCLC B期均为HCC患者OS独立保护因素(P均<0.05)。结论 HAIC联合仑伐替尼治疗BCLC B期或C期HCC安全、有效;治疗前ECOG评分、血清AFP水平、瘤灶数目及BCLC分期均为OS影响因素。

Primary Ovarian Small Cell Carcinoma of Pulmonary Type: Analysis of 6 Cases and Review of 31 Cases in the Literatures

Objective Primary ovarian small cell carcinoma of pulmonary type(SCCOPT)is a rare ovarian tumor with a poor prognosis.The platinum-based chemotherapy is the standard treatment.However,there is little research on the clinical characteristics of SCCOPT and the potential benefits of other treatments due to its low incidence.The study aims to investigate clinicopathological characteristics and treatment of SCCOPT.Methods We summarized the clinical,imaging,laboratorical and pathological characteristics of 37 SCCOPT cases,in which 6 cases were admitted to the Gansu Provincial Hospital from the year of 2008 to 2022 and 31 cases reported in 17 English and 3 Chinese literatures.Results The median age of the studied SCCOPT cases(n=37)was 56.00(range,22-80)years.Almost 80%of them had a stageⅢorⅣtumor.All patients underwent an operation and postoperative chemotherapy.Nevertheless,all cases had a poor prognosis,with a median overall survival time of 12 months.Immunohistochemical y,the SCCOPT of all patients showed positive expressions of epithelial markers,such as CD56 and sex-determining region of Y chromosome-related high-mobility-group box 2(SOX-2),and negative expressions of estrogen receptor,progesterone receptor,vimentin,Leu-7,and somatostatin receptor 2.The tumor of above 80%cases expressed synaptophysin.Only a few cases expressed neuron-specific enolase,chromogranin A,and thyroid transcription factor-1.Conclusions SCCOPT had a poor prognosis.SOX-2 could be a biomarker to be used to diagnose SCCOPT.

Comparison of gemcitabine plus nab-paclitaxel and FOLFIRINOX in metastatic pancreatic cancer

BACKGROUND Gemcitabine plus nab-paclitaxel(GA)and modified FOLFIRINOX(FFX)have been widely used as standard first-line treatment in pancreatic cancer.However,it is unclear which regimen is more efficacious.AIM To evaluate a retrospective analysis comparing the efficacy and safety of FFX and GA as first-line chemotherapeutic regimens in patients with metastatic pancreatic cancer.METHODS We retrospectively analyzed and compared outcomes in 101 patients who presented with pancreatic cancer and were treated with either GA(n=54)or FFX(n=47).Moreover,we performed subgroup analysis based on the neutrophil/lymphocyte ratio(NLR)and Eastern Cooperative Oncology Group(ECOG)performance status.RESULTS There were no significant differences between two groups in baseline characteristics,except for the ECOG performance status.The median progression-free survival(PFS)(6.43 mo vs 4.90 mo,P=0.058)was comparable between two groups;however,median overall survival(OS)(10.17 mo vs 6.93 mo,P=0.008)was longer in patients who received GA regimen.In patients with ECOG 0(PFS:8.93 mo vs 5.43 mo,P=0.002;OS:16.10 mo vs 6.97 mo,P=0.000)and those with NLR<3(PFS:8.10 mo vs 6.57 mo,P=0.008;OS:12.87 mo vs 9.93 mo,P=0.002),GA regimen showed higher efficacy.CONCLUSION GA regimen may be recommended to the patients with NLR<3 or ECOG 0 status although GA and FFX showed comparable efficacy outcomes in patients with metastatic pancreatic cancer.

FOLFOX-肝动脉灌注化疗联合程序性死亡受体-1抑制剂和靶向药物治疗中国肝癌分期Ⅲa期肝细胞癌

目的观察FOLFOX-肝动脉灌注化疗(HAIC)联合程序性死亡受体-1(PD-1)抑制剂和靶向药物治疗中国肝癌分期(CNLC)Ⅲa期肝细胞癌(HCC)的价值。方法回顾性分析61例接受PD-1抑制剂+靶向药物治疗的CNLCⅢa期HCC患者,根据是否接受联合FOLFOX-HAIC治疗将其归入观察组(n=30)及对照组(n=31);比较组间一般资料、治疗方案、不良反应及疗效,分析观察组方案的治疗价值。结果组间患者一般资料及PD-1抑制剂+靶向药物方案差异均无统计学意义(P均>0.05);1~2级不良反应中,观察组恶心、呕吐及腹痛发生率均高于对照组(P均<0.05),而其余1~2级及3级不良反应组间发生率差异均无统计学意义(P均>0.05)。观察组客观缓解率(ORR)、无进展生存期(PFS)及总生存期(OS)均高于对照组(P均<0.05)。结论FOLFOX-HAIC联合PD-1抑制剂+靶向药物治疗CNLCⅢa期HCC疗效较佳而安全性尚可。

Isolated hepatic perfusion: a regional therapy for liver cancer

BACKGROUND: Many treatments have been proposed for non-resectable primary or secondary hepatic cancer but the results have been disappointing. Isolated hepatic perfusion (IHP) was attempted five decades ago but it has been ac- cepted recently after spectacular tumour responses were ob- tained by several phase trials. DATA SOURCES: An English-language literature search using MEDLINE (2003), Index Medicus (2003) and biblio- graphic reviews of books and review articles. IHP and its history and recent clinical application. RESULTS: IHP offers unique pharmacokinetic advantages for locoregional chemotherapy and biotherapy. Surgical isolation of the liver and percutaneous techniques using bal- loon occlusion catheters are reliable and safe. They appear to have significant efficacy even in patients with advanced tumor burden or those with tumors refractory to other types of therapy. CONCLUSION: IHP which has been developed in recent years is becoming a promising strategy for the treatment of unresectable liver cancer.

Management of neuroendocrine carcinomas of the pancreas (WHO G3): A tailored approach between proliferation and morphology

Neuroendocrine carcinomas(NEC) of the pancreas are defined by a mitotic count > 20 mitoses/10 high power fields and/or Ki67 index > 20%, and included all the tumors previously classified as poorly differentiated endocrine carcinomas. These latter are aggressive malignancies with a high propensity for distant metastases and poor prognosis, and they can be further divided into small- and large-cell subtypes. However in the NEC category are included also neuroendocrine tumors with a well differentiated morphology but ki67 index > 20%. This category is associated with better prognosis and does not significantly respond to cisplatin-based chemotherapy, which represents the gold standard therapeutic approach for poorly differentiated NEC. In this review, the differences between well differentiated and poorly differentiated NEC are discussed considering both pathology, imaging features, treatment and prognostic implications. Diagnostic and therapeutic flowcharts are proposed. The need for a revision of current classification system is stressed being well differentiated NEC a more indolent disease compared to poorly differentiated tumors.

Poorly differentiated endocrine carcinoma of the pancreas responded to gemcitabine:Case report

Poorly differentiated endocrine carcinoma (PDEC) of the pancreas is a rare and aggressive tumor. First-line treatment is commonly a combination of etoposide and cisplatin, but there is no consensus regarding further treatment recommendations. In this report, we describe a case of pancreatic PDEC treated with gemcitabine as third-line chemotherapy. A 62-year-old man with pancreatic PDEC was administered etoposide plus cisplatin as first-line treatment; he then received irinotecan for tumor relapse. However, because irinotecan induced ileus in this patient, we chose gemcitabine as thirdline chemotherapy. After two cycles of gemcitabine (1000 mg/m2 on days 1, 8 and 15 every 4 wk), a partialtumor response was noted by computed tomography (approximately 68% reduction in tumor size). Our patient survived for 15 mo after diagnosis. This is a rare case of unresectable pancreatic PDEC, which showed a partial response to gemcitabine after the failure of two other regimens. Gemcitabine could be an effective treatment option for pancreatic PDEC that is resistant to other treatments.

微波深部热疗联合区域灌注化疗治疗晚期胰腺癌的临床研究

目的研究微波深部热疗联合区域灌注化疗治疗晚期胰腺癌的临床疗效。方法选取2016年1月至2017年1月本院治疗的90例晚期胰腺癌患者作为研究对象,随机分为观察组与对照组,每组45例。对组组采用区域灌注化疗,观察组采用微波深部热疗联合区域灌注化疗,比较两组临床疗效、临床症状缓解率、卡诺夫斯凯计分(KPS)评分提升>15分占比、生存率及不良反应发生率。结果观察组治疗总有效率为75.56%,高于对照组的37.78%,差异有统计学意义(P<0.05)。观察组黄疸、腹水、腹痛腹胀缓解率及KPS评分提升>15分占比均高于对照组,差异有统计学意义(P<0.05)。观察组治疗后6、12、18个月的生存率均高于对照组,差异有统计学意义(P<0.05);两组治疗后2、3、5年生存率比较差异无统计学意义。两组不良反应发生率比较差异无统计学意义。结论微波深部热疗联合区域灌注化疗治疗晚期胰腺癌临床疗效显著,可有效改善患者临床症状,延长生存期,且无严重不良反应,值得临床推广应用。

Comparison of regional arterial chemotherapy and systemic intravenous chemotherapy for advanced pancreatic cancer:a systematic review and meta-analysis

Chemotherapy is the mainstay of treatment for advanced pancreatic cancer(stageⅢ/Ⅳ).However,conventional systemic intravenous chemotherapy(SIC)has been unsatisfactory for pancreatic cancer.In recent years,regional arterial infusion chemotherapy(RAIC)has been clinically used as a new chemotherapy regimen for the treatment of advanced pancreatic cancer,but its efficacy is controversial.The purpose of this study was to evaluate the clinical efficacy and safety of RAIC.We searched literatures in databases such as PubMed,EMBASE,Cochrane Library,Web of Science,and CNKI.After screening,this meta-analysis finally included 9 randomized controlled trials(RCTs)with 444 patients(230 RAIC and 214 SIC).We used the Cochrane Risk of Bias 2.0 tool to assess risk of bias for included RCTs.Outcomes were overall survival(OS),overall response rate(ORR),adverse events rate(AER),and pain remission rate.Outcome indicators used relative risk(RR)and its 95%confidence interval(CI)as effect analysis statistics.The results showed that RAIC had some advantages over SIC in terms of ORR,OS,incidence of leukopenia,and pain remission.In conclusion,compared with SIC,RAIC has better clinical efficacy and lower toxicity in the treatment of advanced pancreatic cancer.

立体定向放疗联合吉西他滨治疗胰腺癌的临床观察

目的观察立体定向放疗(体部伽玛刀)联合吉西他滨(GEM)治疗胰腺癌的疗效及安全性。方法将131例局部中晚期胰腺癌患者按不同治疗方案分为A、B两组,A组(82例)仅接受立体定向放疗,B组(49例)接受立体定向放疗联合GEM单药化疗。立体定向放疗以50%等剂量曲线覆盖100%计划靶区,60%等剂量曲线覆盖90%临床靶区,70%等剂量曲线覆盖80%肿瘤区。以50%等剂量曲线作为处方剂量,胰头部肿瘤3～4Gy/次,胰体尾部肿瘤4～5Gy/次,8～12次,计划靶区边缘总剂量32～50Gy。首程同步化疗,GEM 0.5g/m2静滴30min,放疗治疗开始第1、8天给药。放疗结束3周后开始序贯化疗,GEM 1g/m2,静滴30min,第1、8、15天给药,28天为1周期。共化疗2～6周期。中位随访时间17.0个月,观察疗效及毒副反应,随访总生存期和无进展生存期。结果 A、B两组客观有效率分别为71.9%、79.6%,止痛有效率分别为94.3%、93.3%,组间差异均无统计学意义(P>0.05)。治疗后A、B两组的总胆红素、CA199指标均较治疗前明显改善,差异均有统计学意义(P<0.01),但A、B两组之间差异均无统计学意义(P>0.05)。A、B两组中位生存时间分别为14.1、16.4个月,中位无进展生存时间分别为7.9、13.0个月。B组患者的消化道反应和骨髓抑制发生率较A组高,但能够耐受,其余毒副反应相近,均未见穿孔、大出血、持续高热以及4级骨髓抑制等严重并发症发生。结论立体定向放疗治疗中晚期胰腺癌能使肿瘤局部得到准确的高剂量照射,周围正常组织损伤小,疗效较好。联合GEM显著延长了无进展生存时间,但未能改善总生存时间,同时增加了部分毒副反应,但可耐受。

晚期胰腺癌动脉灌注化疗与癌内注射的临床应用

晚期胰腺癌２１例，采用选择性动脉置管，ＡＤＭ、ＤＤＰ、５－ＦＵ灌注化疗，术中癌内注射５－ＦＵ或纯酒精。结果完全缓解４例，部分缓解７例，胰十二指肠二步切除１例；平均生存期９．１±３．４个月。晚期胰腺癌应用动脉灌注化疗与癌内注射治疗，可望获得再手术二步切除。