Interventional Radiology: Abdominal
Abdominal Aspiration and Abscess Drainage

Abdominal aspiration is used to relieve or remove fluid from a cyst or fluid collection in the abdominal cavity. During the procedure which is usually performed with CT imaging (and / or occasionally ultrasound or fluoroscopic x-ray), a small amount of fluid is withdrawn with a needle to evaluate for infection (abscess). If infection is present, as much fluid as possible is withdrawn and an abscess drainage procedure may be performed.

Abscess drainage procedures involve placement of a small tube (catheter drain), in the abdomen. A wire is placed through the same needle used for aspiration, and then the needle is removed. The drain tube is then placed over the wire into the fluid filled area. The tube is then connected to a drainage bag or suction bulb, which is secured to the patient. The patient is placed on antibiotic therapy. The white blood cell count and daily fluid output into the drainage bag are closely monitored. Drainage is usually complete in 1 to 2 weeks when the abscess cavity had collapsed and the daily tube output is close to zero.

After the procedure, patients / caregivers are instructed in general care of the abscess drainage tube and directed to return at intervals to evaluate the abscess. Any questions of concerns should be directed to the department where the catheter was placed. See hospitals we serve.