Caunedo A, Romero R, Hergueta P, Gómez BJ, Rodríguez-Téllez M, Linares E, Sánchez-Gey S, Pellicer FJ, Herrerías JM. Short- and medium-term clinical efficacy of three endoscopic therapies for achalasia: a single-blinded prospective study.
Rev Esp Enferm Dig 2003;
95:13-21, 22-9. [PMID:
12760727]
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Abstract
OBJECTIVE
to compare the efficacy of three endoscopic therapies for achalasia and to identify predictors of response.
DESIGN
prospective, single-blinded study at short and medium term.
MATERIAL AND METHODS
22 patients (9M/13 F; mean age: 47.45 +/- 21.01 years) with confirmed clinical and manometric achalasia were randomised in three groups: intrasphincteric injections of botulinum toxin (group 1: 10 patients ), injections of 1% polidocanol (group 2:6 patients), and a combined therapy with both of them (group 3: 6 patients). Clinical response was evaluated by a score (0-5) of tested symptoms (dysphagia, regurgitation and chest pain) at 1 and 24 weeks post-treatment.
RESULTS
at 24 weeks post-treatment group 2 had the best complete response (CR) rate (33.33%), whereas CR in both the botulinum toxin and combined therapy groups was 10 and 0%, respectively. Groups 1 and 2 got an overall improvement in clinical score at 1 (p= 0.02) and 24 weeks (p= 0.04). Five patients (50%) in group 1, two patients (33.33%) in group 2, and three patients (50%) in group 3 needed other therapies (dilation or surgery) because of treatment failure. Separately, neither age nor sex, time from diagnosis or type of therapy could distinguish responders from non-responders in these three groups. However, absence of response within the first week, and an initial clinical score above 7 were predictive factors of poor response at six months.
CONCLUSIONS
short- and medium-term clinical response to these endoscopic therapies was limited. The absence of response at seven days and a severe initial clinical score were predictive factors of poor medium-term response.
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