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Factors affecting dilation force in balloon dilation of severe esophageal strictures: an experiment using an artificial stricture model

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Abstract

Background

The multidiameter balloon catheter is used widely for severe esophageal stricture dilation. However, the relationships between inflation pressure, balloon size, and radial dilation force at the stricture site have not been examined fully.

Methods

We performed an experiment using phantom models to investigate the relationships between inflation pressure, balloon size, and radial dilation force. The balloon dilation procedure was performed for each stricture model using three sizes of balloon: 10–11–12, 12–13.5–15, and 15–16.5–18 mm.

Results

A positive association between inflation pressure and dilation force was observed for each balloon size. In balloons inflated by targeting the same diameter, the dilation force was higher for smaller balloons than for larger balloons. An inverse association between stricture size and dilation force was observed in the 12–13.5–15 mm balloon (3 vs 5 mm, P = .002; 5 vs 7 mm, P < .001).

Conclusions

We found relationships between inflation pressure, balloon size, severity of strictures, and dilation force. To perform safe and effective esophageal balloon dilation, the inflation pressure and balloon size should be selected after considering the stricture size and target diameter.

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Acknowledgments

This research was partially supported by a grant from the Practical Research for Innovative Cancer Control from the Japan Agency for Medical Research and Development.

Author contributions

H.H. and M.M. contributed to conception and design. Y.N., O.K., S.N., and M.N. analyzed the data. All authors interpreted data for the work. Y.N., H.H., O.K., M.K., S.N., and M.M. drafted the work. A.Y., Y.E., I.A., M.N., T.H., and M.M. critically revised the work for important intellectual content.

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Correspondence to Manabu Muto.

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Yoshitaka Nishikawa, Hirokazu Higuchi, Osamu Kikuchi, Yasumasa Ezoe, Ikuo Aoyama, Atsushi Yamada, Masataka Kanki, Shuhei Nomura, Motoo Nomura, Takahiro Horimatsu, and Manabu Muto have no conflicts of interest or financial ties to disclose.

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Nishikawa, Y., Higuchi, H., Kikuchi, O. et al. Factors affecting dilation force in balloon dilation of severe esophageal strictures: an experiment using an artificial stricture model. Surg Endosc 30, 4315–4320 (2016). https://doi.org/10.1007/s00464-016-4749-5

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  • DOI: https://doi.org/10.1007/s00464-016-4749-5

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