Abstract:
BACKGROUND:Few options exist for patients with localized esophageal cancer ineligible for conventional therapies. Endoscopic spray cryotherapy with low-pressure liquid nitrogen has demonstrated efficacy in this setting in early studies. OBJECTIVE:To assess the safety and efficacy of cryotherapy in esophageal carcinoma. DESIGN:Multicenter, retrospective cohort study. SETTING:Ten academic and community medical centers between 2006 and 2009. PATIENTS:Subjects with esophageal carcinoma in whom conventional therapy failed and those who refused or were ineligible for conventional therapy. INTERVENTIONS:Cryotherapy with follow-up biopsies. Treatment was complete when tumor eradication was confirmed by biopsy or when treatment was halted because of tumor progression, patient preference, or comorbid condition. MAIN OUTCOME MEASUREMENTS:Complete eradication of luminal cancer and adverse events. RESULTS:Seventy-nine subjects (median age 76 years, 81% male, 94% with adenocarcinoma) were treated. Tumor stage included T1-60, T2-16, and T3/4-3. Mean tumor length was 4.0 cm (range 1-15 cm). Previous treatment including endoscopic resection, photodynamic therapy, esophagectomy, chemotherapy, and radiation therapy failed in 53 subjects (67%). Forty-nine completed treatment. Complete response of intraluminal disease was seen in 31 of 49 subjects (61.2%), including 18 of 24 (75%) with mucosal cancer. Mean (standard deviation) length of follow-up after treatment was 10.6 (8.4) months overall and 11.5 (2.8) months for T1 disease. No serious adverse events were reported. Benign stricture developed in 10 (13%), with esophageal narrowing from previous endoscopic resection, radiotherapy, or photodynamic therapy noted in 9 of 10 subjects. LIMITATIONS:Retrospective study design, short follow-up. CONCLUSIONS:Spray cryotherapy is safe and well tolerated for esophageal cancer. Short-term results suggest that it is effective in those who could not receive conventional treatment, especially for those with mucosal cancer.
journal_name
Gastrointest Endoscjournal_title
Gastrointestinal endoscopyauthors
Greenwald BD,Dumot JA,Abrams JA,Lightdale CJ,David DS,Nishioka NS,Yachimski P,Johnston MH,Shaheen NJ,Zfass AM,Smith JO,Gill KR,Burdick JS,Mallat D,Wolfsen HCdoi
10.1016/j.gie.2010.01.042subject
Has Abstractpub_date
2010-04-01 00:00:00pages
686-93issue
4eissn
0016-5107issn
1097-6779pii
S0016-5107(10)00056-8journal_volume
71pub_type
杂志文章,多中心研究abstract:BACKGROUND:Photodynamic therapy appears to be effective in ablating high-grade dysplasia in Barrett's esophagus. Our aim was to identify the most effective and cost-effective strategy for managing high-grade dysplasia in Barrett's esophagus without associated endoscopically visible abnormalities. METHODS:By using deci...
journal_title:Gastrointestinal endoscopy
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pub_type: 临床试验,杂志文章,随机对照试验
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pub_type: 临床试验,杂志文章,随机对照试验
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pub_type: 临床试验,杂志文章,随机对照试验
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pub_type: 杂志文章
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