Machicado G A, Jensen D M
UCLA Center for the Health Sciences, California, Los Angeles, USA.
Baillieres Best Pract Res Clin Gastroenterol. 2000 Jun;14(3):443-58. doi: 10.1053/bega.2000.0089.
In the last two decades, significant progress has been made in the diagnosis, prognostication and treatment of patients with severe peptic ulcer haemorrhage. Patients can now be risk stratified by clinical presentation and endoscopic stigmata of ulcer haemorrhage. The purposes of this chapter are to discuss: (1) the techniques of thermal probe with or without epinephrine for haemostasis of ulcers with major stigmata of haemorrhage and (2) the outcomes of treatment of patients with ulcer haemorrhage treated with endoscopic thermal probes or other therapies, medical therapy and/or surgery. Compared to medical therapy alone, patients with major stigmata actively bleeding ulcers, non-bleeding visible vessels and non-bleeding adherent clots have been shown to benefit from endoscopic haemostasis with bipolar probe, heater probe, lasers or epinephrine injection. Outcomes showing significant improvement include blood transfusions, emergency surgery rates and length of hospital stay. Meta-analyses have also reported improvements in mortality for endoscopic compared with medical therapy of patients with severe ulcer haemorrhage and major stigmata. Patients with minor stigmata of ulcer haemorrhage (such as flat spots) or no stigmata (clean-based ulcers) do not benefit from endoscopic haemostasis. Thermal probes have the advantages of good coaptive coagulation, target irrigation, portability and relative inexpense. Recently, patients with active arterial bleeding, non-bleeding adherent clots or non-bleeding visible vessels have been reported to have better results with combination epinephrine injection and thermal probe compared to monotherapy alone (such as injection, bipolar or heater probe). In addition, repeat endoscopic combination therapy has been reported to be as effective but safer than emergency surgery for management of recurrent ulcer haemorrhage.
在过去二十年中,严重消化性溃疡出血患者的诊断、预后评估和治疗取得了显著进展。现在可以根据临床表现和溃疡出血的内镜下特征对患者进行风险分层。本章的目的是讨论:(1)使用或不使用肾上腺素的热探头技术用于有大出血特征的溃疡止血;(2)接受内镜热探头或其他疗法、药物治疗和/或手术治疗的溃疡出血患者的治疗结果。与单纯药物治疗相比,有活动性出血的大出血特征溃疡、非出血性可见血管和非出血性附着血凝块的患者已被证明可从使用双极探头、热探头、激光或肾上腺素注射的内镜止血中获益。显示出显著改善的结果包括输血、急诊手术率和住院时间。荟萃分析还报告称,与严重溃疡出血和大出血特征患者的药物治疗相比,内镜治疗可降低死亡率。溃疡出血特征轻微(如扁平斑)或无特征(基底清洁的溃疡)的患者无法从内镜止血中获益。热探头具有良好的贴合性凝血、靶向冲洗、便携性和相对成本低等优点。最近,有报道称,与单纯单一疗法(如注射、双极或热探头)相比,肾上腺素注射联合热探头治疗活动性动脉出血、非出血性附着血凝块或非出血性可见血管的患者效果更好。此外,据报道,重复内镜联合治疗在治疗复发性溃疡出血方面与急诊手术同样有效,但更安全。