Increased esophageal chemoreceptor sensitivity to acid in patients after successful reversal of Barrett's esophagus

被引:39
作者
Fass, R [1 ]
Yalam, JM [1 ]
Camargo, L [1 ]
Johnson, C [1 ]
Garewal, HS [1 ]
Sampliner, RE [1 ]
机构
[1] ARIZONA HLTH SCI CTR, DEPT MED, SECT GASTROENTEROL & HEMATOL ONCOL, TUCSON, AZ 85724 USA
关键词
Barrett's esophagus; gastroesophageal reflux disease; multipolar electrocoagulation;
D O I
10.1023/A:1018850824287
中图分类号
R57 [消化系及腹部疾病];
学科分类号
摘要
When compared to patients with erosive esophagitis, patients with Barrett's esophagus have demonstrated reduced chemo- and mechanoreceptor sensitivity to acid infusion and balloon distension, respectively. However, anecdotal clinical experience suggested an increase in symptom perception in patients after successful elimination of Barrett's epithelium, using multipolar electrocoagulation (MPEC) and high-dose proton pump inhibitor (PPI). To determine perception thresholds to acid infusion, we evaluated eight consecutive patients after a series of MPEC treatments resulted in complete elimination of Barrett's mucosa and compared them to 10 age-matched patients with nonreversed Barrett's esophagus and 10 patients with symptomatic, endoscopy-documented erosive esophagitis (Hetzel-Dent grade 2 or greater). Chemosensitivity was determined by a modified acid perfusion test, where acid perception thresholds were quantified by the lag time to initial typical symptom perception, sensory intensity rating, and an acid perfusion sensory score (APSS). While patients after successful elimination of Barrett's esophagus had similar sensory intensity ratings and APSS as patients with erosive esophagitis, the lag times differed significantly between the groups, and both groups had significantly higher sensory intensity ratings and APSS than patients with nonreversed Barrett's esophagus. In conclusion, patients after complete reversal of Barrett's mucosa are unexpectedly as sensitive to acid as symptomatic patients with erosive esophagitis.
引用
收藏
页码:1853 / 1858
页数:6
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