冷冻联合125I粒子植入治疗局部进展性胰腺癌

目的 探讨冷冻联合125I粒子植入治疗局部进展性胰腺癌的价值.方法 49例无法手术切除的进展性胰腺癌患者,予以术中或经皮冷冻治疗;同时或术后植入125I粒子.部分患者术后接受腹腔动脉灌注化学治疗.对治疗效果、不良反应及患者存活期进行分析.结果 分别有13、36例患者行术中和经皮冷冻治疗.35例患者同时植入125I粒子,另14例则在冷冻术后实施.20例患者接受局部化学治疗.治疗3个月后,CT检查多数患者肿瘤不同程度坏死,其中完全缓解(CR)占20.4%、部分缓解(PR)38.8%、病情稳定(SD)30.6%、病情进展(PD)10.2%.主要不良反应包括上腹痛、血清淀粉酶升高;6例并发急性胰腺炎,其中1例属重症.经相关处理,均得到有效控制.无一例因治疗而死亡.随访中位时间18个月(5～40个月),中位存活期为16.21个月,有26例(53.1%)存活期≥12个月,8例存活期≥24个月.6、12,24和36个月时的平均存活率分别为94.1%、53.1%、22.8%和9.5%.最长的1例存活>46个月,无肿瘤复发征象.结论 冷冻治疗的创伤性小,且不良反应发生率低,可作为局部进展性胰腺癌患者的首选疗法.联合应用125I粒子植入能获得更佳效果.     

~(125)I放射性粒子植入治疗不可切除胰腺癌的研究进展

近年来~(125)放射性粒子植入治疗不可切除胰腺癌迅猛发展,临床实践表明,它在缓解患者疼痛,局部控制肿瘤进展,延长患者生存时间等方面具有良好效果。介绍了~(125)放射性粒子的物理、生物学特性及治疗优缺点,以及~(125)放射性粒子植入治疗不可切除胰腺癌的治疗方法、手术安全性、临床治疗效果等。认为作为一种切实有效的治疗方案,有条件的医疗单位应积极推广应用。     

125I粒子组织间植入治疗胰腺癌的实验研究

目的 探讨125I粒子组织间植入治疗胰腺癌的有效性.方法 Balb/c裸鼠腋下接种人胰腺癌SW1990细胞.按植入剂量不同将成瘤后裸鼠分为对照组和50 Gy、100 Gy、150 Gy、200 Gy组,每4 d测量肿瘤体积,21 d后处死裸鼠,称瘤重,计算肿瘤抑制率,常规病理检查,TUNEL法检测凋亡细胞.结果 对照组、50 Gy组、100 Gy组、150 Gy组及200 Gy组抑瘤率分别为0、(42.8±16.2)%、(55.1±22.3)%、(72.8±12.8)%及(75.6±8.6)%;以粒子为中心的肿瘤坏死面积分别为(6.3±2.1)%、(20.8±3.2)%、(36.3±3.1)%、(64.1±2.8)% 及(82.6±3.8)%;相对凋亡指数分别为1、2.07±0.57、2.75±0.33、4.64±0.45及7.04±0.34,各治疗组均显著高于对照组(P＜0.05).结论 125I粒子组织间植入可显著抑制肿瘤生长,放射粒子具有直接杀死肿瘤细胞和诱导凋亡双重作用.     

^125Ⅰ粒子组织间植入治疗胰腺癌的实验研究

目的探讨125I粒子组织间植入治疗胰腺癌的有效性。方法Balb/c裸鼠腋下接种人胰腺癌SW1990细胞。按植入剂量不同将成瘤后裸鼠分为对照组和50Gy、100Gy、150Gy、200Gy组,每4d测量肿瘤体积,21d后处死裸鼠,称瘤重,计算肿瘤抑制率,常规病理检查,TUNEL法检测凋亡细胞。结果对照组、50Gy组、100Gy组、150Gy组及200Gy组抑瘤率分别为0、(42.8±16.2)%、(55.1±22.3)%、(72.8±12.8)%及(75.6±8.6)%;以粒子为中心的肿瘤坏死面积分别为(6.3±2.1)%、(20.8±3.2)%、(36.3±3.1)%、(64.1±2.8)%及(82.6±3.8)%;相对凋亡指数分别为1、2.07±0.57、2.75±0.33、4.64±0.45及7.04±0.34,各治疗组均显著高于对照组(P<0.05)。结论125I粒子组织间植入可显著抑制肿瘤生长,放射粒子具有直接杀死肿瘤细胞和诱导凋亡双重作用。     

经皮冷冻联合125I粒子植入治疗81例Ⅳ期胰腺癌的疗效分析

目的 评估氩氦刀经皮冷冻联合125Ⅰ粒子植入疗法治疗Ⅳ期胰腺癌的疗效.方法 对2008年11月至2010年8月收治的81例Ⅳ期胰腺癌患者进行分组,其中Ⅰ组50人,原发灶与转移灶均行氩氦刀冷冻联合125Ⅰ粒子植入术治疗,Ⅱ组31入,原发灶行125Ⅰ粒子植入术治疗,转移灶行氩氦刀冷冻联合125Ⅰ粒子植入术治疗.随访2.5年,比较两组术后不良反应、中位生存期(MST)及治疗频率对MST的影响.结果 Ⅰ组和Ⅱ组患者MST分别为8个月和4个月,差异具有统计学意义(P＜0.001).Ⅰ组中接受多次和单次治疗的患者MST分别为11个月和7个月,差异有统计学意义(P=0.0389).Ⅱ组中接受多次和单次治疗的患者MST分别为4个月和3个月,差异无统计学意义(P=0.99).结论 相对于原发灶行125Ⅰ粒子植入治疗、转移灶行氩氦刀冷冻联合125Ⅰ粒子植入术的Ⅳ期胰腺癌患者,原发灶与转移灶均行氩氦刀冷冻联合125Ⅰ粒子植入术且多次反复治疗的患者生存期得以延长.     

经皮冷消融治疗局部进展性胰腺癌的可行性

目的 前瞻性观察经皮冷消融治疗的不良反应、肿瘤变化及近期疗效,探讨该技术治疗局部进展性胰腺癌的可行性.方法 2008年9月至2009年9月共59例局部进展性胰腺癌患者采用氩/氦为基础的冷冻系统,在超声引导下行经皮冷消融治疗.将冷冻探针插入胰腺肿块的中心,做2次循环冷冻,每次冷冻5 min,温度为-160℃,然后复温,持续10 min.检测治疗前和治疗后7 d的血清淀粉酶活性;冷消融后每4～6周行CT扫描评价肿瘤变化;应用Kaplan-Meier法计算生存率.结果 59例患者共有76个活检证实的肿瘤,位于胰头部56个、胰体部7个、胰尾部13个.肿瘤中位大小4.5 cm,19例伴肝转移.术后发生腹痛45例(76.3%),发热29例(49.2%),血淀粉酶升高34例(57.6%),严重并发症(腹腔内出血、胰漏、肠梗阻和冷冻探针针道转移)5例(8.5%),无冷消融相关性死亡.中位住院时间21 d.2例(3.4%)获得完全缓解,23例(39.0%)获得部分缓解,30例(50.8%)疾病稳定,4例(6.8%)疾病进展.中位存活期8.4个月;3、6、12个月存活率分别为89.7%、61.1%和34.5%.结论 超声引导下的经皮冷消融是一种安全可行的局部进展性胰腺癌微创治疗技术.     

CT引导下经皮植入^125Ⅰ放射性粒子治疗肺癌探讨

目的探讨CT导引下经皮穿刺植入^125Ⅰ放射性粒子治疗肺癌的临床疗效、可行性及安全性。方法共67例肺癌91个病灶行CT引导下经皮植入^125Ⅰ放射性粒子。病灶位于肺部58个，肺外33个。采用0．5～0．8mCi（1mCi=37MBq）活度的^125Ⅰ粒子，处方剂量选择110～160Gy。术前通过放射性粒子治疗计划系统（TPS）制定治疗计划。结果91个病灶CR 23个，PR 60个，SD 8个，无PD，有效率91．2％。主要并发症有气胸、少量咯血。结论CT引导下经皮植入^125Ⅰ放射性粒子治疗肺癌近期疗效确切、并发症轻，可作为肺癌多学科综合治疗中的一个方法。     

氩氦刀冷冻消融结合I~(125)粒子植入治疗肝门区胆管癌5例报告

目的探讨氩氦刀冷冻消融结合I125粒子植入治疗肝门区胆管癌的疗效。方法选取本院2010年1月至2013年6月收治的5例肝门区胆管癌患者,在CT定位下先由穿刺针确定肿瘤位置及穿刺角度,后以17 mm氩氦刀刺入肿瘤组织,在最靠近冰球主胆管及左右肝管汇合处靠近氩氦刀侧置入测温针,氩氦刀与胆管壁的最近距离大于3 cm,对于包绕主干胆管的肿瘤组织,距胆管壁约0.8cm沿纵轴间距0.3~0.5 cm布置I125粒子,然后进行2个周期冷冻消融。结果本组5例患者,术后1周内疼痛症状完全缓解2例,明显缓解3例;1周内总胆红素明显下降2例,轻度升高1例。无出血、气胸等并发症。结论氩氦刀冷冻消融结合I125粒子植入对于肝门区胆管癌患者在近期内能有效缓解症状,改善生活质量,但对远期疗效的评价尚须大样本病例研究及长期随访。     

CT引导下经皮植入125I放射性粒子治疗肺癌探讨

目的探讨CT导引下经皮穿刺植入125I放射性粒子治疗肺癌的临床疗效、可行性及安全性。方法共67例肺癌91个病灶行CT引导下经皮植入125I放射性粒子。病灶位于肺部58个,肺外33个。采用0.5～0.8mCi(1mCi=37MBq)活度的125I粒子,处方剂量选择110～160Gy。术前通过放射性粒子治疗计划系统(TPS)制定治疗计划。结果91个病灶CR23个,PR60个,SD8个,无PD,有效率91.2%。主要并发症有气胸、少量咯血。结论CT引导下经皮植入125I放射性粒子治疗肺癌近期疗效确切、并发症轻,可作为肺癌多学科综合治疗中的一个方法。     

125I粒子植入联合吉西他滨化疗治疗胰腺癌临床受益疗效评价

目的 评价EUS引导下125I粒子植入联合吉西他滨化疗治疗胰腺癌的临床收益疗效.方法 41例不能手术切除的胰腺癌患者按完全随机法分为放射性125I粒子植入联合吉西他滨化疗组(21例)和单纯吉西他滨化疗组(20例).吉西他滨化疗方案为1 000 mg/m2,1次/周,静脉滴注,连用3周,休息1周;联合组在125I粒子植入后1周行化疗.评价临床受益疗效(CBR).结果 125I粒子联合吉西他滨化疗组临床受益率为57.1%,达到CBR的中位时间为1周,临床受益疗效持续的中位时间为21周;单纯化疗组分别为25%、4周和15周,两组前2项相差非常显著(P<0.05),而临床受益疗效持续的中位时间无显著差异(P>0.05).结论 EUS引导下125I粒子组织间植入联合吉西他滨化疗治疗不能手术切除的胰腺癌的CBR明显优于单纯吉西他滨化疗组.     

I125粒子植入在胰腺恶性肿瘤治疗中的疗效分析

目的:分析姑息性手术联合I125粒子植入和化疗对晚期胰腺癌患者的疗效.方法:回顾性分析我科2004.2008年收治的晚期胰腺癌患者149例,按治疗方法分为2组,姑息手术+I125粒子植入+化疗62例(A组),姑息手术+化疗87例(B组).比较2组患者客观有效率(OTR)、临床受益率(CBR)、中位生存期以及并发症发生率.结果:与B组相比,Am患者临床受益率,中位生存期差异有统计学差异(χ2=7.361,10.090,P<0.05),而客观有效率与并发症发生率差异无统计学差异(P>0.05).结论:姑息性手术联合I125粒子植入和术后化疗治疗晚期胰腺癌患者,是一种安全有效的治疗方法.     

A pilot study on combination of cryosurgery and (125)iodine seed implantation for treatment of locally advanced pancreatic cancer

AIM： To study the therapeutic value of combination o cryosurgery and 125iodine seed implantation for locally advanced pancreatic cancer. METHODS： Forty-nine patients with locally advanced pancreatic cancer （males 36, females 13）, with a median age of 59 years, were enrolled in the study. Twelve patients had liver metastases. In all cases the tumors were considered unresectable after a comprehensive evaluation. Patients were treated with cryosurgery, which was performed intraoperatively or percutaneously unde guidance of ultrasound and/or computed tomography （CT）, and 125iodine seed implantation, which was performed during cryosurgery or post-cryosurgery under guidance of ultrasound and/or CT. A few patients received regional celiac artery chemotherapy. RESULTS： Thirteen patients received intraoperative cryosurgery and 36 received percutaneous cryosurgery Some patients underwent repeat cryosurgery. 125Iodine seed implantation was performed during freezing procedure in 35 patients and 3-9 d after cryosurgery in 14 cases. Twenty patients, 10 of whom had hepaticmetastases received regional chemotherapy. At 3 mo after therapy, CT was repeated to estimate tumor response to therapy. Most patients showed varying degrees of tumor necrosis. Complete response （CR） of tumor was seen in 20.4% patients, partial response （PR）, in 38.8%, stable disease （SD）, in 30.6%, and progressive disease （PD）, in 10.2%. Adverse effects associated with cryosurgery included upper abdomen pain and increased serum amylase. Acute pancreatitis was seen in 6 patients one of whom developed severe pancreatitis. All adverse effects were controlled by medical management with no poor outcome. There was no therapy-related mortality. During a median follow-up of 18 mo （range of 5-40）, the median survival was 16.2 mo, with 26 patients （53.1%） surviving for 12 mo or more. Overall, the 6-, 12-, 24- and 36-mo survival rates were 94.9%, 63.1%, 22.8% and 9.5%, respectively. Eight patients had survival of 24 mo or more. The     

Radical treatment of stage IV pancreatic cancer by the combination of cryosurgery and iodine-125 seed implantation

AIM: To investigate the therapeutic effect of radical treatment and palliative treatment in stage IV pancreatic cancer patients.METHODS: 81 patients were enrolled in the study. Radical treatment was performed on 51 patients, while 30 patients were put under palliative treatment. The procedural safety and interval survival for stage IV pancreatic cancer (IS-IV) was assessed by almost 2.5 years of follow-ups. The IS-IV of patients under the two kinds of treatment, and the effects of treatment timing and frequency on IS-IV, were compared.RESULTS: The IS-IV of patients who received radical treatment was significantly longer than those who received palliative treatment (P < 0.001). The IS-IV of patients who received delayed radical or palliative treatment was longer than those who received accordingly timely treatment (P = 0.0034 and 0.0415, respectively). Multiple treatments can play an important role in improving the IS-IV of patients who received radical treatment (P = 0.0389), but not for those who received palliative treatment (P = 0.99).CONCLUSION: The effect of radical treatment was significantly more obvious than that of palliative treatment, and multiple radical treatments may contribute more to patients than a single radical treatment.     

Cryosurgery with combination of (125)iodine seed implantation for the treatment of locally advanced pancreatic cancer

OBJECTIVE: To study the therapeutic value of cryosurgery with combination of (125)iodine seed implantation for locally advanced pancreatic cancer. METHODS: Thirty-eight patients with locally advanced pancreatic cancer were enrolled in this study. The diagnosis was confirmed by pathology in 31 patients. Ten patients had metastases of the peripancreatic lymph node and eight had liver metastases. The therapy included cryosurgery, which was performed intra-operatively or percutaneously under guidance of ultrasound and/or computed tomography (CT), and (125)iodine seed implantation, which was performed during cryosurgery process or post-cryosurgery under the guidance of ultrasound and/or CT. RESULTS: Eleven patients received intra-operative cryosurgery and 27 received percutaneous cryosurgery. Fourteen patients underwent two procedures of cryosurgery and three underwent three procedures of cryosurgery. (125)Iodine seed implantation was performed during the freezing procedure in 29 patients and within 3-7 days after cryosurgery in nine patients under ultrasound and CT guidance. Fifteen patients, of whom 13 had metastases of peripancreatic lymph nodes or liver received regional chemotherapy. At 3 months after therapy, a CT follow-up was performed to estimate the tumor response to therapy. Most of the patients had varying degrees of tumor necrosis. A complete response of the tumor was seen in 23.6% of patients, a partial response in 42.1%, stable disease in 26.3% and progressive disease in 7.9%. The adverse effects associated with cryosurgery mainly included pain of the upper abdomen and increased serum amylase activity. Acute pancreatitis was seen in five patients, one of whom presented a severe type of pancreatitis. During the followed-up of a median of 16 months (range of 5-37) median overall survival was 12 months, 19 patients (50.0%) survived for 12 months or longer and four survived for 24 months or longer. CONCLUSION: As it is far less invasive than conventional pancreas resection and entails a low rate of adverse effects, cryosurgery should be the choice modality for most patients with locally advanced pancreatic cancer. (125)Iodine seed implantation can destroy residue survival cancer cells after cryosurgery. Hence, combination of both modalities has a complementary effect.     

内镜超声引导下碘125粒子植入术治疗晚期食管癌患者吞咽困难初探

目的 评价内镜超声引导下碘125粒子植入术治疗晚期食管癌患者吞咽困难的安全性及有效性。方法 2017年12月—2018年11月,因晚期食管癌吞咽困难于解放军总医院接受内镜超声引导下碘125粒子植入术治疗的4例病例纳入回顾性分析,主要评价指标为治疗完成情况、并发症发生情况、治疗前后吞咽困难分级情况及内镜下癌灶大小变化情况、随访结果。结果 4例患者均成功完成内镜超声引导下碘125粒子植入术,未出现出血、胸痛、发热、咳嗽等并发症。治疗前吞咽困难分级Ⅱ～Ⅳ级,治疗后3个月降低至0～Ⅰ级,内镜下均可见癌灶有所缩小。随访12～23个月,3例生存,1例肿瘤晚期死亡。结论 内镜超声引导下碘125粒子植入术治疗晚期食管癌吞咽困难是一种安全有效的姑息治疗方法。     

Triple approach strategy for patients with locally advanced pancreatic carcinoma

Background

Radiofrequency ablation (RFA) is a relatively new technique, applied to metastatic solid tumours which, in recent studies, has been shown to be feasible and safe on locally advanced pancreatic carcinoma (LAPC). RFA can be combined with radio-chemotherapy (RCT) and intra-arterial plus systemic chemotherapy (IASC). The aim of this study was to investigate the impact on the prognosis of a multimodal approach to LAPC and define the best timing of RFA.

Methods

This is a retrospective observational study of patients who have consecutively undergone RFA associated with multiple adjuvant approaches.

Results

Between February 2007 and December 2011, 168 consecutive patients were treated by RFA, of which 107 were eligible for at least 18 months of follow-up. Forty-seven patients (group 1) underwent RFA as an up-front treatment and 60 patients as second treatment (group 2) depending on clinician choice. The median overall survival (OS) of the whole series was 25.6 months: 14.7 months in the group 1 and 25.6 months in the group 2 (P = 0.004). Those patients who received the multimodal treatment (RFA, RCT and IASC-triple approach strategy) had an OS of 34.0 months.

Conclusions

The multimodal approach seems to be feasible and associated with an improved longer survival rate.     

125 I粒子植入联合汉防己甲素治疗局部晚期非小细胞肺癌患者的疗效及安全性观察

目的：探讨放射性125 I粒子联合汉防己甲素（ Tet）治疗局部晚期非小细胞肺癌（ NSCLC）的疗效及安全性。方法将76例Ⅲa～Ⅲb期NSCLC患者随机分为两组各38例。两组均在CT引导下将125 I粒子植入靶区,放射处方剂量为110 Gy。观察组在植入125 I粒子当天口服Tet,连服3个月。比较两组的疗效和毒性反应。结果76例患者均顺利完成治疗。 D100（112．4±12．3）Gy,D90（148．7±22．5）Gy,平均剂量（238．9±11．6）Gy。中位随访时间为21个月,观察组和对照组治疗6个月时的总有效率分别为86．8％、65．8％,1年生存率分别为84．2％、63．2％,中位生存时间分别为26、18个月（P均＜0．05）。125I粒子植入的主要并发症为气胸及咯血,对照组出现1级晚期放射性肺损伤8例,观察组未出现晚期放射性肺损伤。结论125 I粒子联合Tet治疗局部晚期NSCLC近期疗效好、局部控制率高、患者生存率高、并发症少、无明显不良反应,值得临床应用。     

Intraoperative radiofrequency ablation combined with 125 iodine seed implantation for unresectable pancreatic cancer

AIM: To evaluate the feasibility, efficacy and safety of intraoperative radiofrequency ablation (RFA) combined with 125 iodine seed implantation for unresectable pancreatic cancer. METHODS: Thirty-two patients (21 males and 11 females) at the age of 68 years (range 48-90 years) with unresectable locally advanced pancreatic cancer admitted to our hospital from January 2006 to May 2008 were enrolled in this study. The tumor, 4-12 cm in diameter, located in pancreatic head of 23 patients and in pancreatic body...     

经皮埋置125碘籽治疗不能切除性胰腺癌

目的 研究经皮埋置^125碘籽对不能手术切除性胰腺癌的治疗价值。方法 在B超监视下，经皮穿刺注入^125碘籽入胰肿瘤内。按肿瘤大小，注入30～80粒，放射活性15～40mCi。结果 13例均为不能手术切除的进展期胰腺癌，经^125碘籽局部埋置后，69．2％的病例腹痛改善，38．5％的病例腹痛几乎完全消失；53．8％的病例肿瘤缩小；中位生存期13个月，6、12、18和24个月生存率分别为92.3％、53．8％、38．5％和15．3％。结论 经皮植入^125碘籽对病人的侵袭性小，而取得的结果与常规手术、放化疗的结果大体相似，可作为不能切除性胰腺癌的治疗手段。