Fifteen patients with Crohn disease underwent percutaneous catheter drainage of related abdominal abscesses. The abscesses were located in the right lower quadrant (five patients); in the quadratus lumborum and/or iliopsoas muscles (four patients); in the left paracolic gutter (two patients); and in the right gluteal muscles, the liver, the left subphrenic space, and the pelvis (one patient each). All abscesses were evacuated successfully (n = 15 of 15), and no patient required surgery for abscess drainage. Existing fistulas closed in four of seven patients; the other three patients underwent surgery for excision of diseased bowel and enteric fistulas. No patient developed an enterocutaneous fistula as a result of catheter drainage. Percutaneous abscess drainage is effective for abscesses related to Crohn disease and should be regarded as the procedure of choice. An operation for the abscess can be avoided, and early results suggest that bowel surgery may be obviated in selected patients.
CT- and ultrasound-guided catheters were used to locate and drain empyemas in 17 patients, most of whom had failed to improve with conventional chest-tube drainage due to a poorly positioned tube. Fifteen patients (88.2%) were treated successfully, averting surgery or further drainage, and bacteremia in 1 patient was the only complication. Previously unrecognized communications with the bronchi, esophagus, and subphrenic space were demonstrated, and intracavitary tumor biopsy and instillation of a sclerosing agent were performed in several patients. Compared to the tubes used to drain abdominal abscesses, empyema catheters need less irrigation; dionosil is often the preferred contrast agent, the catheter can be withdrawn in one step, and a residual fibrotic or tumor cavity may persist after pus has been evacuated.
Percutaneous catheter drainage was performed in 16 patients with diverticulitis complicated by abscesses. Each patient had resolution of fever within 72 hours. Eleven patients subsequently underwent simultaneous sigmoid resection and operative anastomosis 10-40 days after percutaneous drainage. One patient required a three-stage procedure after percutaneous drainage, and one patient was too unstable for operation at any time during her course and eventually died of respiratory failure. Three patients did not undergo resection after catheter drainage and have remained asymptomatic for 1-2 1/2 years. Ten of 16 patients had fistulas, eight of which closed spontaneously. Experience with percutaneous drainage of diverticular abscesses suggests that it obviates surgical abscess drainage and permits a single operation (sigmoid resection and closure) to be performed safely. Percutaneous abscess drainage has cost-saving implications, since one or two operations may be avoided in most patients, and in some high-risk elderly patients all operations may be obviated.
In this prospective study, computed tomography (CT) was used to examine the resolution of pleural abnormalities following radiologic catheter drainage of empyemas. Ten patients with empyemas surrounded by pleural peels underwent thoracic CT scanning at 4, 8, and 12 weeks after removal of their catheter(s). The scans demonstrated extensive pleural thickening 4 weeks after catheter removal in all 10 patients. The pleural thickening had decreased 8 weeks after catheter removal. At 12 weeks, the pleura was essentially normal in four patients, demonstrated only a small area of plaque-like thickening in four patients, and was mildly thickened in two patients. This study demonstrates that the pleural surfaces have a remarkable capacity for healing after empyema drainage. The pleural peel resolves in most cases. These results suggest that decortication need not be performed routinely when such empyemas are encountered; rather, patients should be treated on an individualized basis and studied with serial CT to determine the necessity of decortication.
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