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01.09.2016 | Ausgabe 4/2017 Open Access

Surgical Endoscopy 4/2017

Endoscopic dilation of benign esophageal anastomotic strictures over 16 mm has a longer lasting effect

Zeitschrift:
Surgical Endoscopy > Ausgabe 4/2017
Autoren:
Emo E. van Halsema, Irma C. Noordzij, Mark I. van Berge Henegouwen, Paul Fockens, Jacques J. Bergman, Jeanin E. van Hooft
Wichtige Hinweise

Electronic supplementary material

The online version of this article (doi:10.​1007/​s00464-016-5187-0) contains supplementary material, which is available to authorized users.

Abstract

Background

The optimal target of endoscopic dilation of postsurgical esophageal strictures is unknown. Our aim was to compare the dilation-free period of patients who underwent dilation up to 16 mm with patients who were dilated up to 17 or 18 mm.

Methods

We retrospectively analyzed adult patients who received bougie/balloon dilation for a benign anastomotic stricture after esophagectomy. An anastomotic stricture was defined as dysphagia in combination with a luminal diameter of ≤13 mm at endoscopy. We analyzed the dilation-free period using Kaplan–Meier and multivariable Cox regression analysis.

Results

Eighty-eight patients were dilated up to a maximum diameter of 16 mm and 91 patients to a diameter >16 mm. The stricture recurrence rate was 79.5 % in the 16 mm group and 68.1 % in the >16 mm group (p = 0.083). The overall dilation-free period had a median of 41.5 (range 8–3233) days and 92 (range 17–1745) days, respectively (p < 0.001). For patients who developed a stricture recurrence, the median dilation-free period was 28 (range 8–487) days and 63 (range 17–1013) days, respectively (p = 0.001). Cox regression analysis showed a reduced risk of stricture recurrence for patients who were dilated up to >16 mm: crude hazard ratio (HR) 0.57 (95 % confidence interval (CI) 0.41–0.81) and adjusted HR 0.48 (95 % CI 0.33–0.70).

Conclusions

Endoscopic dilation over 16 mm resulted in a significant prolongation of the dilation-free period in comparison with dilation up to 16 mm in patients with benign anastomotic strictures after esophagectomy.

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