1、实实 验验 研研 究究Brand et al.Dermatology,2019;197:152-157 猪皮肤猪皮肤(n=150)不同氩气流量不同氩气流量/作用时间作用时间/输出功率输出功率 凝固深度与高频输出功率及作用时间相关凝固深度与高频输出功率及作用时间相关 凝固深度与氩气流量无关凝固深度与氩气流量无关 APC术皮肤缺损小术皮肤缺损小 无周围组织的损伤及疤痕形成无周围组织的损伤及疤痕形成实实 验验 研研 究究Johanns et al.Eur J Gastro Hepato,2019;9:581-7 人胃人胃/小肠小肠/结肠(手术切除标本)结肠(手术切除标本)功率(功率(40155 W)
2、流量()流量(27L/mm)时间(时间(110 s)角度(角度(45o/90o)75100W/510s:穿透黏膜肌层:穿透黏膜肌层 155W/10s:25%肌层表面坏死肌层表面坏死 155W/10s:凝固坏死层阻止作用:凝固坏死层阻止作用实实 验验 研研 究究Borgert et al.Am J Gastroenterol,2019;94:1153-60 局部凝固性焦痂的绝缘局部凝固性焦痂的绝缘 作用及损伤深度作用及损伤深度 12 mm Gale et al.J Am Assoc Gynecol Laparosy,2019;5:19-22 腹腔镜,猪大肠腹腔镜,猪大肠 周围组织损伤小周围组织损
3、伤小 高功率(高功率(80W)较长时间()较长时间(5 s)肠组织坏死深度肠组织坏死深度 2mm 可应用于下列的手术:可应用于下列的手术:临临 床床 应应 用用 进进 展展 A P C metaplasia LGD HGD adenocacinoma 黏膜切除(黏膜切除(EMR)光动力治疗(光动力治疗(PDT)激光热损伤治疗(激光热损伤治疗(KTP)手术手术 APC(操作方便、价廉、疗效好)(操作方便、价廉、疗效好)Byrne et al.Am J Gastroenterol,2019;93:1810-5 n=30,治疗后随访治疗后随访618月月(m=9)90%(27/30)组织学证实鳞取代柱
4、上皮)组织学证实鳞取代柱上皮 70%病变区被覆正常鳞状上皮病变区被覆正常鳞状上皮 30%新生鳞状上皮覆盖残留化生上皮新生鳞状上皮覆盖残留化生上皮 无并发症发生无并发症发生Pereira Lima et al.Am J Gastroenterol,2000;95:1661-8 n=33,m-age 55.2 Barrett:m-length 4.05cm/range 0.5-7cm Histology:n=14 LGD,n=1 HGD APC:65-70w Session:1.96(range 1-4)PPI:60mg/d(treatment period)Side effects:pain/1
5、9,fever/5,stricture/3 Complete restoration of squamous mucosa in all 33 cases Follow-up 10.6 mth:recurrence/1 姑息性治疗:消化道肿瘤性狭窄、梗阻姑息性治疗:消化道肿瘤性狭窄、梗阻 减轻患者痛苦,改善生活质量减轻患者痛苦,改善生活质量Wahab et al.(n=32)食管癌食管癌/15(长10cm/窄0.2cm):梗阻解除梗阻解除/8 支架支架/3:再通,复位:再通,复位 胃癌胃癌/10(5x5x3cm):有效姑息性切除:有效姑息性切除/8 肠癌肠癌/7:恢复正常通道:恢复正常通道胃胃
6、-十二指肠十二指肠-结肠结肠 较小息肉、腺瘤(较小息肉、腺瘤(2cm)77个,先行圈套个,先行圈套器分叶切除,随机分三组:器分叶切除,随机分三组:n 分分 组组 APC 根除率根除率(6m)10 残留腺瘤组织残留腺瘤组织 -0%32 未见残留组织未见残留组织 -54%30 残留腺瘤组织残留腺瘤组织 (+)50%残留组织残留组织APC治疗:有益降低复发率治疗:有益降低复发率组组别别病病例例病病灶灶治治疗疗病病灶灶数数探探头头粘粘连连(例例)并并发发症症(例例)广广基基扁扁平平灶灶 APC 组组1331310*4*息息肉肉出出血血 APC 组组55500广广基基扁扁平平灶灶热热凝凝电电极极组组20
7、2828117*诉诉术术后后 14 天天局局部部灼灼痛痛感感*诉诉术术后后 14 天天局局部部隐隐痛痛或或疼疼痛痛*与与热热凝凝电电极极组组比比较较有有显显著著差差异异(P0.01)出血性消化性溃疡出血性消化性溃疡Cipolletta et al.Gastrointest Endosc,2019;48:191-5 40%active bleeding,60%visible vessel n 止血止血 再出血再出血 死亡死亡 手术手术 时间时间APC 21 95.2%15%4.7%9.5%60*HP 20 95%21%5%15%115*p15mm99310中等肿瘤直径515mm8035小肿瘤60
8、15右结肠 !40 !0.51剩余结肠405013在食管、十二指肠、小肠和直肠手术时的正常设定 hemorrhagic carditis tonsillectomy inferior turbinate reduction bronchoscopy cardiac surgery trachetomy hereditary hemorrhagic telangiectasia(HHT)skin surgery?关注问题关注问题?(G.I.)Application in:pre-malignant conditions early-stage malignant lesionsOrth et a
9、l.Chirurg,2019;70:431-8 esophagus:HGD/11 squamous ca./2 APC:4 times on average follow-up 3-42 mth:multiple biopsies squamous regeneration in all/11 HGD Squamous ca.Recurrence 9-12 mth later APC didnt succeed in destroying ca.续:续:Wahab PJ,et al Endosc 2019;29:176-81 Byrne JP,e al Endosc 2019;29:E32 S
10、essler M,et al J Cancer Res Clin Oncol 2019;121:235-8 食管食管/胃胃/肠肠:异常增生和早期癌异常增生和早期癌 n=16 APC治疗治疗12次次:治愈治愈15例,成功率例,成功率94%,复发复发0%(随访(随访514月),并发症月),并发症0%联合联合EMR+APC提高疗效提高疗效 APC治疗并不能保证其绝对的均匀性治疗并不能保证其绝对的均匀性 治疗后新生上皮下仍可能存在化生治疗后新生上皮下仍可能存在化生“危险危险”区域区域 明确癌前病变或早癌的范围及程度至关重要明确癌前病变或早癌的范围及程度至关重要ASGE:Gastrointest End
11、osc 2019;55(7):807810 Technology Status Evaluation Report,Feb.2019 Indications and Efficacy:hemostasis(vascular ectasias-GAVE/bleeding ulcers,varices)ablation(barretts esophagus/polyps and remnant adenomatous tissue after polypectomy/debulking malignant tumors/miscellaneous)ASGE:Gastrointest Endosc
12、2019;55(7):807810 Technology Status Evaluation Report,Feb.2019 Safety:(complication rates 024%)gaseous distention/pneumatosis intestinalis/pneumoperotoneum/pneumomediastinum/subcutaneous emphasema/pain at the treatment site/chronic ulceration/stricture/bleeding/transmural burn syndrome/perforation/d
13、eathASGE:Gastrointest Endosc 2019;55(7):807810 Technology Status Evaluation Report,Feb.2019 Financial Consideration:more compact,mobile,versatile,less costly compared with laser more complex and costly compared with thermal probes,however APC generator can be used with other devicesASGE:Gastrointest
14、 Endosc 2019;55(7):807810 Technology Status Evaluation Report,Feb.2019 Cost-effectiveness:no formal cost-effectiveness studies have been published to dataASGE:Gastrointest Endosc 2019;55(7):807810 Technology Status Evaluation Report,Feb.2019 Summary majority of the published experience is non-random
15、ized and retrospective limited published data indicate:attention to technique and at recommended settings/used safely for gastrointestinal endoscopic application appears to be best suited for hemostasis of diffuse superficial vascular lesions(GAVE)and radiation induced proctopathy insufficient compa
16、rative data to assess:its performance relative to other modalities including cost-effectiveness analyses/for ablation therapyASGE:Gastrointest Endosc 2019;55(7):807810 Technology Status Evaluation Report,Feb.2019THE ROLE OF APC FORHEMOATASIS AND ABLATIVE THERAPIES REQUIRES FUTHER STUDY prepared by technology committee:Ginsberg GG(Chair),Barkun A,Bosco JJ,et al THANK YOUFOR YOUR ATTENTION