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Comparison of Balloon- and Mushroom-Retained Large-Bore Gastrostomy Catheters

¹ Department of Radiology, MC 2026, The University of Chicago Hospitals, 5841 S. Maryland Ave., Chicago, IL 60637.
² Racine Radiologist Group, 3803 Spring St., Rm. 208, Racine, WI 53405.

OBJECTIVE. We conducted a retrospective study to evaluate two different types of percutaneous fluoroscopic gastrostomy procedures and catheters.

MATERIALS AND METHODS. Between July 8, 1999, and August 4, 2000, 80 percutaneous gastrostomy catheters were placed in 80 patients in 80 attempts. Twenty-five 16-, 18-, or 20-French balloon-retained catheters and 55 20-French mushroom-retained catheters were inserted. Typically, the type of catheters placed was based on operator preference. However, balloon-retained tubes were preferred for use in patients with obstructive head and neck or esophageal malignancies, and mushroom-retained catheters were preferred for use in demented or combative patients. Follow-up was conducted through chart reviews and telephone interviews. The technical success, procedural complications, and catheter complications were recorded. Chi-square statistical analysis was performed.

RESULTS. Technical success was 100% (80/80 patients), and no procedural complications occured. In patients who received balloon-retained catheters, the major complication rate was 0%, the minor complication rate was 8% (2/25 patients), and the tube complication rate was 68% (17/25 patients). The following complications occurred: catheter dislodgment (n = 17), superficial cellulitis (n = 1), and bleeding gastric ulcer (n = 1). In patients who received mushroom-retained catheters, the major complication rate was 0%, the minor complication rate was 3.6% (2/55 patients), and the tube complication rate was 3.6% (2/55 patients). The following complications occurred: superficial cellulitis (n = 2), tube occlusion (n = 1), and peristomal tube leakage (n = 1). No significant differences in major or minor complications were found between the gastrostomy procedures. Balloon-retained catheters had a significantly higher rate of tube complications (p < 0.001).

CONCLUSION. Compared with balloon-retained catheters, mushroom-retained gastrostomy catheters are significantly more durable, more secure, and less prone to tube dysfunction. Mushroom-retained catheters should be the preferred type of gastrostomy catheter to place in patients whenever possible.

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