Endoscopy 2015; 47(11): 1028-1034
DOI: 10.1055/s-0034-1392481
Innovations and brief communications
© Georg Thieme Verlag KG Stuttgart · New York

Hydraulic dilation with a shape-measuring balloon in idiopathic achalasia: a feasibility study

Authors

  • Wouter F. W. Kappelle

    Department of Gastroenterology and Hepatology, University Medical Center Utrecht, Utrecht, The Netherlands
  • Auke Bogte

    Department of Gastroenterology and Hepatology, University Medical Center Utrecht, Utrecht, The Netherlands
  • Peter D. Siersema

    Department of Gastroenterology and Hepatology, University Medical Center Utrecht, Utrecht, The Netherlands
Further Information

Publication History

submitted 08 December 2014

accepted after revision 29 April 2015

Publication Date:
08 September 2015 (online)

Preview

Background and aim: Pneumatic dilation is a commonly used treatment in achalasia. Recent studies have shown that esophageal distensibility measurements can be used to assess the effect of dilation and possibly the risk of perforation. A new hydraulic dilation balloon allows visualization of the shape of the balloon in vivo and measurement of distensibility during dilation. We aimed to evaluate the technical feasibility of a 30-mm shape-measuring hydraulic dilation balloon for the treatment of achalasia.

Methods: Consecutive patients with newly diagnosed achalasia were dilated using a 30-mm shape-measuring hydraulic dilation balloon. Patients were contacted 1 week, 1 month, and 3 months after dilation. Technical success, clinical success, and major complications were evaluated.

Results: Technical success was achieved in all of the 10 patients included. Median esophagogastric junction distensibility (mm2/mmHg) increased from 1.1 (IQR 0.6 – 1.3) before dilation therapy to 7.0 (IQR 5.5 – 17.8) afterwards (P = 0.005). No major complications were seen. Three patients (30 %) reported recurrent dysphagia.

Conclusion: Hydraulic dilation with a shape-measuring balloon in achalasia patients is feasible. In vivo esophageal distensibility measurements may allow for an individualized, patient-specific dilation regimen.

The Netherlands National Trial Register: NTR4371