TITLE

Pneumatic dilation for achalasia: late results of a prospective follow up investigation

AUTHOR(S)
Eckordt, V. F.; Gockel, I.; Bernhard, G.
PUB. DATE
May 2004
SOURCE
Gut;May2004, Vol. 53 Issue 5, p629
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Background and aims: In this prospective study, we determined the long term clinical course of patients with achalasia who were treated by pneumatic dilation using the Browne-McHardy dilator, and determined whether previously described predictors of outcome remain significant after prolonged follow up. Methods: Between 1981 and 1991, 54 consecutive patients were treated by pneumatic dilation and followed up at regular intervals for a median of 13.8 years. Remission was determined with the use of a structured interview and a previously described symptom score. Duration of remission was evaluated by Kaplan-Meier estimates of time to recurrence. Predictors of outcome were determined using the log rank test. Results: Complete follow up until 2002 was obtained in 98% of all patients. Seven patients had died and were censored. A single pneumatic dilation resulted in a five year remission rate of 40% and a 10 year remission rate of 36%. Repeated dilations only mildly improved the clinical response. Patients who were older than 40 years had a significantly better outcome than younger patients (log rank test, p=0.0014). However, the most significant predictive factor for a favourable long term outcome was a post-dilation lower oesophageol sphincter pressure of less than 10 mm Hg (log rank test, p=0.000I). Conclusions: Long term results of pneumatic dilation are less favourable than previously thought. Young patients and those not responding to a single pneumatic dilation should be offered alternative therapy. Patients who remain in remission for five years are likely to benefit from the longlasting treatment effect of pneumatic dilation.
ACCESSION #
13148294

 

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