PMID: 11926552Apr 3, 2002Paper

Long-term follow-up of achalasia patients treated with botulinum toxin

Digestive and Liver Disease : Official Journal of the Italian Society of Gastroenterology and the Italian Association for the Study of the Liver
V D'OnofrioG Iaquinto

Abstract

To evaluate long-term efficacy of intrasphincteric injection of botulinum toxin in untreated achalasia patients; to analyse whether age can be a predictor of response; and to verify whether any objective measurements correlate with symptom relief A total of 37 patients (mean age 61.4+/-17.5 years) were enrolled, all of whom injected endoscopically with 100 U of botulinum toxin. Symptom score, oesophageal manometry and oesophageal radionuclide emptying were assessed prior to treatment and 4 weeks, 3 months and 1 year after botulinum toxin. In the case of failure or relapse (symptom score >2), treatment was repeated. All but 6 patients (83.7%) were in clinical remission one month after botulinum toxin. At 12 months, mean symptom score was 0.9+/-0.5 (p<0.05 vs basal); mean lower oesophageal sphincter pressure was 22.0+/-6.3 (p<0.05 vs basal), and 10-min radionuclide retention was 14.0%+/-7.2 (p<0.05 vs basal). Of the 35 patients followed, 12 (34.3%) had a relapse and were re-treated; 4 out of 12 did not respond after re-treatment. Efficacy of first injection of botulinum toxin lasted for a mean period of 15.6 months (range 2-30). Up to day 31 (83.7%) patients were still in remission. We observed a trend towards a better response t...Continue Reading

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