Development of an adjustable prosthesis for the treatment of gastroesophageal reflux: Preliminary results in a porcine model

Francesco Carugno, John H. Donohue, Eduardo Moreno, John Byrne, David O. Hodge, Duane M. Ilstrup, Michael G. Sarr

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Dysphagia and recurrent gastroesophageal reflux complicate use of the Angelchik prosthesis. The authors developed an inflatable silicone device, similar to the Angelchik prosthesis, that may allow for the adjustment of the total pressure exerted around the gastroesophageal junction after implantation. To estimate its potential to prevent gastroesophageal reflux in humans, we used a short-term porcine model in which we measured the effective lower esophageal sphincter pressure in 10 anesthetized pigs using a computerized, three dimensional pressure vector volume analysis. Anesthesia and mobilization of the gastroesophageal junction did not modify the three dimensional pressure vector volume at the lower esophageal sphincter. Implantation of the deflated device significantly increased effective lower esophageal sphincter three dimensional pressure vector volume compared with baseline. Inflation of the device with 30 ml of saline further increased lower esophageal sphincter pressure significantly. Deflation of the device returned the pressure to the pre-inflation values. Using an animal model and short-term implantation, this new antireflux device appeared to offer the potential ability to adjust the pressure selectively at the gastroesophageal junction postoperatively. An added future feature of this device may be the ease of insertion using laparoscopic techniques. Long-term animal implantation studies and clinical trials are required to help establish the safety and efficacy of this device in humans.

Original languageEnglish (US)
Pages (from-to)140-143
Number of pages4
JournalASAIO Journal
Volume44
Issue number3
StatePublished - Jun 1998
Externally publishedYes

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Gastroesophageal Reflux
Prostheses and Implants
Swine
Pressure
Lower Esophageal Sphincter
Esophagogastric Junction
Equipment and Supplies
Economic Inflation
Animals
Protective Devices
Silicones
Deglutition Disorders
Anesthesia
Animal Models
Clinical Trials

ASJC Scopus subject areas

  • Biophysics
  • Bioengineering

Cite this

Carugno, F., Donohue, J. H., Moreno, E., Byrne, J., Hodge, D. O., Ilstrup, D. M., & Sarr, M. G. (1998). Development of an adjustable prosthesis for the treatment of gastroesophageal reflux: Preliminary results in a porcine model. ASAIO Journal, 44(3), 140-143.

Development of an adjustable prosthesis for the treatment of gastroesophageal reflux : Preliminary results in a porcine model. / Carugno, Francesco; Donohue, John H.; Moreno, Eduardo; Byrne, John; Hodge, David O.; Ilstrup, Duane M.; Sarr, Michael G.

In: ASAIO Journal, Vol. 44, No. 3, 06.1998, p. 140-143.

Research output: Contribution to journalArticle

Carugno, F, Donohue, JH, Moreno, E, Byrne, J, Hodge, DO, Ilstrup, DM & Sarr, MG 1998, 'Development of an adjustable prosthesis for the treatment of gastroesophageal reflux: Preliminary results in a porcine model', ASAIO Journal, vol. 44, no. 3, pp. 140-143.
Carugno F, Donohue JH, Moreno E, Byrne J, Hodge DO, Ilstrup DM et al. Development of an adjustable prosthesis for the treatment of gastroesophageal reflux: Preliminary results in a porcine model. ASAIO Journal. 1998 Jun;44(3):140-143.
Carugno, Francesco ; Donohue, John H. ; Moreno, Eduardo ; Byrne, John ; Hodge, David O. ; Ilstrup, Duane M. ; Sarr, Michael G. / Development of an adjustable prosthesis for the treatment of gastroesophageal reflux : Preliminary results in a porcine model. In: ASAIO Journal. 1998 ; Vol. 44, No. 3. pp. 140-143.
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