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Health economic evaluation of therapeutic strategies in patients with idiopathic achalasia: results of a randomized trial comparing pneumatic dilatation with laparoscopic cardiomyotomy

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Abstract

Background

We have prospectively collected information concerning the costs incurred during the management of patients allocated to either forceful dilatation or to an immediate laparoscopic operation because of newly diagnosed achalasia.

Methods

Fifty-one patients with newly diagnosed achalasia were randomized to either pneumatic dilatation to a diameter of 30–40 mm or to a laparoscopic myotomy to which was added a posterior partial fundoplication. Follow-ups were scheduled at 1, 3, 6, and 12 months after inclusion. At each follow-up visit a study nurse interviewed the patients regarding symptoms and their quality of life (QoL) and a health economic questionnaire was completed. In the latter questionnaire, patients were asked to report the presence and character of contacts with the healthcare system since the last visit.

Results

In the dilatation group six patients (23%), including the patient who was operated on because of perforation, were classified as failures during the first 12 months of follow-up compared to one (4%) in the myotomy group (p = 0.047). Five of those classified as failures in the dilatation group subsequently had a surgical myotomy and the sixth patient was treated with repeated dilatations. The patient classified as failure in the myotomy group was treated with endoscopic dilatation. The initial treatment cost and the total costs were significantly higher for laparoscopic myotomy compared to a pneumatic dilatation-based strategy (p = 0.0002 and p = 0.0019, respectively) When the total costs were subdivided into the different resources used, we found that the single largest cost item for pneumatic dilatation was that for hospital stay and that for laparoscopic myotomy was the actual operative treatment (operating room time) The cost-effectiveness analysis, relating to the actual treatment failures, revealed that the cost to avoid one treatment failure (incremental cost-effectiveness ratio) amounted to €9239.

Conclusion

The current prospective, controlled clinical trial shows that despite a higher level of clinical efficacy of laparoscopic myotomy to prevent treatment failure in newly diagnosed achalasia, the cost effectiveness of pneumatic dilatation is superior, at least when a reasonable time horizon is applied.

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Authors and Affiliations

  1. Department of General Surgery, Borås Central Hospital, Borås, Sweden

    S. Kostic

  2. Department of Surgery, Sahlgrenska University Hospital, Gothenburg, Sweden

    E. Johnsson, M. Ruth & H. Lönroth

  3. Department of Surgery, Karolinska University Hospital, Huddinge, Stockholm, Sweden

    A. Kjellin & L. Lundell

  4. Department of Radiology, Sahlgrenska University Hospital, Gothenburg, Sweden

    M. Andersson

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  1. S. Kostic
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  2. E. Johnsson
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  3. A. Kjellin
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  7. L. Lundell
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Correspondence to S. Kostic.

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Kostic, S., Johnsson, E., Kjellin, A. et al. Health economic evaluation of therapeutic strategies in patients with idiopathic achalasia: results of a randomized trial comparing pneumatic dilatation with laparoscopic cardiomyotomy. Surg Endosc 21, 1184–1189 (2007). https://doi.org/10.1007/s00464-007-9310-0

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  • DOI: https://doi.org/10.1007/s00464-007-9310-0

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