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Radiologic Gastrostomy Placement

Pigtail- Versus Mushroom-Retained Catheters

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

OBJECTIVE. Two different types of percutaneous fluoroscopic gastrostomy procedures were prospectively evaluated.

SUBJECTS AND METHODS. Between January 1, 1998, and August 10, 1999, 127 percutaneous gastrostomy catheters were placed in 128 patients in 128 attempts. Seventy-five 12- or 14-French pigtail-retained catheters and fifty-two 20-French mushroom-retained catheters were inserted. Catheters were generally placed on the basis of operator preference except pigtail-retained tubes were preferentially placed in patients with head and neck or esophageal malignancies and mushroom-retained catheters were preferentially placed in neurologically compromised or combative patients. The technical success, procedural complications, and catheter complications were recorded. Statistical analysis was performed.

RESULTS. Ninety-nine percent (127/128) of the procedures were successful, and there were no procedural complications. One catheter was not placed because the colon intervened between the abdominal wall and stomach. In patients who received pigtail-retained catheters, the major complication rate was 3% (2/75), the minor complication rate was 8% (6/75), and the tube complication rate was 36% (27/75). The following complications were seen: tube occlusion (n = 12), inadvertent catheter removal (n = 8), peristomal tube leakage (n = 7), superficial cellulitis (n = 4), aspiration pneumonia (n = 2), and T-fastener cellulitis (n = 2). In patients who received mushroom-retained catheters, the major complication rate was 0%, the minor complication rate was 2% (1/52), and the tube complication rate was 2% (1/52). Complications were superficial cellulitis (n = 1) and partial catheter fracture (n = 1). There were no significant differences in major and minor complications between procedures. Pigtail-retained catheters had a significantly higher rate of tube complications (p < 0.001)

CONCLUSION. Compared with pigtail-retained catheters, mushroom-retained gastrostomy catheters are more durable and secure and are less prone to tube dysfunction. These catheters should be preferentially placed when possible.

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